diff --git a/.github/ISSUE_TEMPLATE/data-problem.yml b/.github/ISSUE_TEMPLATE/data-problem.yml
index 149f79385c537a..696943fe953a49 100644
--- a/.github/ISSUE_TEMPLATE/data-problem.yml
+++ b/.github/ISSUE_TEMPLATE/data-problem.yml
@@ -1,6 +1,7 @@
 name: "Data problem"
 title: "<NAME THE FEATURE> - <SUMMARIZE THE PROBLEM>"
 description: Report incorrect, incomplete, or missing data
+labels: ["needs-triage"]
 body:
   - type: markdown
     attributes:
diff --git a/.github/ISSUE_TEMPLATE/enhancement.yml b/.github/ISSUE_TEMPLATE/enhancement.yml
index 66f6befc5901af..63478ff6a77296 100644
--- a/.github/ISSUE_TEMPLATE/enhancement.yml
+++ b/.github/ISSUE_TEMPLATE/enhancement.yml
@@ -1,6 +1,6 @@
 name: "Enhancement"
 description: An enhancement to BCD's infrastructure
-labels: ["enhancement :1st_place_medal:"]
+labels: ["needs-triage", "enhancement"]
 body:
   - type: markdown
     attributes:
diff --git a/.github/ISSUE_TEMPLATE/infra-problem.yml b/.github/ISSUE_TEMPLATE/infra-problem.yml
index 784e244a0beca7..1dbf9e86fda459 100644
--- a/.github/ISSUE_TEMPLATE/infra-problem.yml
+++ b/.github/ISSUE_TEMPLATE/infra-problem.yml
@@ -1,5 +1,6 @@
 name: "Infrastructure/Linter Problem"
 description: Report issues with infrastructure, including scripts and linters
+labels: ["needs-triage"]
 body:
   - type: markdown
     attributes:
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 0daaf7773289be..fac195a7430fd0 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -7,8 +7,8 @@ updates:
       time: "11:00"
     open-pull-requests-limit: 10
     labels:
-      - "infra :building_construction:"
-      - "dependencies :chains:"
+      - "infra"
+      - "dependencies"
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
diff --git a/.github/issue-regex-labeler.yml b/.github/issue-regex-labeler.yml
new file mode 100644
index 00000000000000..0d3129cd14cae3
--- /dev/null
+++ b/.github/issue-regex-labeler.yml
@@ -0,0 +1,30 @@
+data:api:
+  - 'api\.'
+  - '\/docs\/Web\/API'
+data:css:
+  - 'css\.'
+  - '\/docs\/Web\/CSS'
+data:html:
+  - 'html\.'
+  - '\/docs\/Web\/HTML'
+data:http:
+  - 'http\.'
+  - '\/docs\/Web\/HTTP'
+data:js:
+  - 'js\.'
+  - '\/docs\/Web\/JavaScript'
+data:mathml:
+  - 'mathml\.'
+  - '\/docs\/Web\/MathML'
+data:svg:
+  - 'svg\.'
+  - '\/docs\/Web\/SVG'
+data:wasm:
+  - 'webassembly\.'
+  - '\/docs\/WebAssembly'
+data:webdriver:
+  - 'webdriver\.'
+  - '\/docs\/Web\/WebDriver'
+data:webext:
+  - 'webextensions\.'
+  - '\/docs\/Mozilla\/Add-ons'
diff --git a/.github/labeler.yml b/.github/labeler.yml
index 661b9ae485c674..ccf4c88bd101bb 100644
--- a/.github/labeler.yml
+++ b/.github/labeler.yml
@@ -1,62 +1,62 @@
 # This file is used by .github/workflows/labeler.yml to label pull requests based on the files changed in the PR.
 # Object matching syntax: https://github.com/actions/labeler/blob/main/README.md#match-object
-bulk_update :package::
+bulk_update:
   - changed-files:
       - any-glob-to-any-file:
           - "scripts/migrations/**"
-data:api :rabbit2::
+data:api:
   - changed-files:
       - any-glob-to-any-file:
           - "api/**"
-data:browsers :earth_africa::
+data:browsers:
   - changed-files:
       - any-glob-to-any-file:
           - "browsers/**"
-data:css :art::
+data:css:
   - changed-files:
       - any-glob-to-any-file:
           - "css/**"
-data:html :page_facing_up::
+data:html:
   - changed-files:
       - any-glob-to-any-file:
           - "html/**"
-data:http :mountain_cableway::
+data:http:
   - changed-files:
       - any-glob-to-any-file:
           - "http/**"
-data:js :pager::
+data:js:
   - changed-files:
       - any-glob-to-any-file:
           - "javascript/**"
-data:mathml :heavy_division_sign::
+data:mathml:
   - changed-files:
       - any-glob-to-any-file:
           - "mathml/**"
-data:svg :paintbrush::
+data:svg:
   - changed-files:
       - any-glob-to-any-file:
           - "svg/**"
-data:wasm :mechanical_arm::
+data:wasm:
   - changed-files:
       - any-glob-to-any-file:
           - "webassembly/**"
-data:webdriver :racing_car::
+data:webdriver:
   - changed-files:
       - any-glob-to-any-file:
           - "webdriver/**"
-data:webext :game_die::
+data:webext:
   - changed-files:
       - any-glob-to-any-file:
           - "webextensions/**"
-dependencies :chains::
+dependencies:
   - changed-files:
       - any-glob-to-any-file:
           - "package-lock.json"
-docs :writing_hand::
+docs:
   - changed-files:
       - any-glob-to-any-file:
           - "**/*.md"
-infra :building_construction::
+infra:
   - changed-files:
       - any-glob-to-any-file:
           - ".*"
@@ -69,15 +69,15 @@ infra :building_construction::
           - ".github/**"
           - ".husky/**"
           - ".vscode/**"
-linter :house_with_garden::
+linter:
   - changed-files:
       - any-glob-to-any-file:
           - "lint/**"
-scripts :scroll::
+scripts:
   - changed-files:
       - any-glob-to-any-file:
           - "scripts/**"
-schema :gear::
+schema:
   - changed-files:
       - any-glob-to-any-file:
           - "schemas/**"
diff --git a/.github/workflows/close-incomplete-issues.yml b/.github/workflows/close-incomplete-issues.yml
index 9127bac214a90a..5f16246268954b 100644
--- a/.github/workflows/close-incomplete-issues.yml
+++ b/.github/workflows/close-incomplete-issues.yml
@@ -11,10 +11,10 @@ jobs:
   close-issues-if-invalid:
     runs-on: ubuntu-latest
     steps:
-      - uses: queengooborg/invalid-issue-closer@v1.4.0
+      - uses: queengooborg/invalid-issue-closer@v1.5.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
-          labels: "invalid :no_entry_sign:"
+          labels: "invalid"
           comment: |
             This issue was automatically closed because the title was left as the default, and a summary was not added.
 
diff --git a/.github/workflows/issue-regex-labeler.yml b/.github/workflows/issue-regex-labeler.yml
new file mode 100644
index 00000000000000..da011933944997
--- /dev/null
+++ b/.github/workflows/issue-regex-labeler.yml
@@ -0,0 +1,15 @@
+# Labels issues by BCD key, MDN URL or other regex match in issue description.
+name: Issue Labeler
+on:
+  issues:
+    types: [opened]
+
+jobs:
+  issue-labeler:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: github/issue-labeler@v3.4
+        with:
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
+          configuration-path: .github/issue-regex-labeler.yml
+          enable-versioned-regex: 0
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index e8fc5be3187cd7..4203762dd5c0af 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -3,16 +3,36 @@ on:
   pull_request_target:
 
 permissions:
-  contents: read
+  contents: read # to determine modified files
+  issues: write # pr-size-labeler uses the issues API until https://github.com/CodelyTV/pr-size-labeler/pull/89 is merged
+  pull-requests: write # to add labels to PRs
 
 jobs:
-  triage:
-    permissions:
-      contents: read # for actions/labeler to determine modified files
-      pull-requests: write # for actions/labeler to add labels to PRs
+  label-py-path:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/labeler@v5
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           sync-labels: true
+
+  label-by-size:
+    if: github.actor != 'dependabot[bot]' && !startsWith(github.event.pull_request.title, 'Release v')
+    needs: label-py-path
+    runs-on: ubuntu-latest
+    steps:
+      - uses: codelytv/pr-size-labeler@v1
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          github_api_url: "https://api.github.com"
+          xs_label: "size:xs"
+          xs_max_size: "6"
+          s_label: "size:s"
+          s_max_size: "24"
+          m_label: "size:m"
+          m_max_size: "100"
+          l_label: "size:l"
+          l_max_size: "1000"
+          xl_label: "size:xl"
+          fail_if_xl: "false"
+          message_if_xl: ""
diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index 783ea1057afcf0..9a60e240cb5c89 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -2,6 +2,7 @@ name: Node.js CI
 
 on:
   push:
+    branches: ["main"]
   pull_request:
 
 permissions:
diff --git a/.github/workflows/pr-reviewdog.yml b/.github/workflows/pr-reviewdog.yml
new file mode 100644
index 00000000000000..d2c85e51013586
--- /dev/null
+++ b/.github/workflows/pr-reviewdog.yml
@@ -0,0 +1,63 @@
+name: Reviewdog
+
+on:
+  pull_request_target:
+    branches: ["main"]
+
+jobs:
+  fix:
+    name: Fix
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: ".nvmrc"
+          cache: npm
+
+      - run: npm ci
+
+      - run: npm run fix
+        env:
+          FORCE_COLOR: 3
+
+      - run: git diff > diff.patch
+
+      - name: Upload diff
+        uses: actions/upload-artifact@v4
+        with:
+          name: diff
+          path: diff.patch
+
+  suggest:
+    name: Suggest
+    needs: fix
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download diff
+        uses: actions/download-artifact@v4
+        with:
+          name: diff
+
+      - name: Setup
+        uses: reviewdog/action-setup@v1
+        with:
+          reviewdog_version: latest
+
+      - name: Suggest changes
+        env:
+          REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          cat diff.patch | reviewdog \
+            -name="bcd-linter" \
+            -f=diff \
+            -f.diff.strip=1 \
+            -filter-mode=diff_context \
+            -reporter=github-pr-review
diff --git a/.github/workflows/release-pr.yml b/.github/workflows/release-pr.yml
new file mode 100644
index 00000000000000..83b4f59bc6799c
--- /dev/null
+++ b/.github/workflows/release-pr.yml
@@ -0,0 +1,46 @@
+name: Release PR
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+
+env:
+  GH_TOKEN: ${{ secrets.GH_TOKEN }}
+  GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
+
+concurrency:
+  group: ${{ github.workflow }}
+
+jobs:
+  manage-release-pr:
+    if: github.repository == 'mdn/browser-compat-data' && github.actor != 'dependabot[bot]' && !startsWith(github.event.head_commit.message, 'Release v')
+    name: Manage release PR
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
+          token: ${{ secrets.GH_TOKEN }}
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: ".nvmrc"
+          registry-url: "https://registry.npmjs.org/"
+          cache: npm
+
+      - name: "Setup git"
+        run: |
+          git config user.email 108879845+mdn-bot@users.noreply.github.com
+          git config user.name mdn-bot
+
+      - name: Install
+        run: npm ci
+
+      - name: Release
+        run: npm run release
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 24f4424fadb294..88f9421535a3ac 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,19 +1,40 @@
 name: Release package
 
 on:
+  push:
+    branches:
+      - main
+    paths:
+      - "RELEASE_NOTES.md"
   release:
     types:
       - published
 
 env:
-  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
 
 permissions:
   contents: write
   issues: write
 
 jobs:
-  build:
+  create-release:
+    if: github.repository == 'mdn/browser-compat-data' && github.event_name == 'push' && startsWith(github.event.head_commit.message, 'Release v')
+    name: Create release
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout (BCD)
+        uses: actions/checkout@v4
+
+      - name: Create release
+        run: |
+          VERSION=v$(jq -r '.version' package.json)
+          awk '/^## /{if (p) exit; p=1; next} p' RELEASE_NOTES.md | tail -n +4 >> CURRENT_RELEASE_NOTES.md
+          gh release create $VERSION --title=$VERSION --target $GITHUB_SHA --notes-file CURRENT_RELEASE_NOTES.md --latest
+
+  publish-release:
+    if: github.event_name == 'release'
     name: Publish release
     runs-on: ubuntu-latest
 
diff --git a/.github/workflows/update-browser-releases.yml b/.github/workflows/update-browser-releases.yml
index 6705c5cc4fa248..34dfb95cb3ddcb 100644
--- a/.github/workflows/update-browser-releases.yml
+++ b/.github/workflows/update-browser-releases.yml
@@ -34,7 +34,7 @@ jobs:
           npm run update-browser-releases -- --all >> $GITHUB_ENV
           echo "EOF" >> $GITHUB_ENV
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v7
         with:
           token: ${{ secrets.GH_TOKEN }} # need the rights to create and edit PRs
           commit-message: Update browser releases
diff --git a/.github/workflows/update-mdn-urls.yml b/.github/workflows/update-mdn-urls.yml
new file mode 100644
index 00000000000000..fcae7e01c45dfe
--- /dev/null
+++ b/.github/workflows/update-mdn-urls.yml
@@ -0,0 +1,45 @@
+name: Update MDN urls
+
+on:
+  pull_request_target:
+    paths:
+      - "package-lock.json"
+
+jobs:
+  update-mdn-urls:
+    if: github.repository == 'mdn/browser-compat-data' && github.actor == 'dependabot[bot]' && startsWith(github.head_ref, 'dependabot/npm_and_yarn/ddbeck/mdn-content-inventory-')
+    name: Update MDN urls
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.head_ref }}
+          token: ${{ secrets.GH_TOKEN }}
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: ".nvmrc"
+          cache: npm
+
+      - name: "Setup git"
+        run: |
+          git config user.email 108879845+mdn-bot@users.noreply.github.com
+          git config user.name mdn-bot
+
+      - name: Install
+        run: npm ci
+
+      - name: Update
+        env:
+          REF: ${{ github.head_ref }}
+        run: |
+          npm run lint:fix -- --only=mdn_urls
+          if git diff --exit-code; then
+            echo "No changes."
+          else
+            git commit -m 'chore: fix mdn urls' .
+            git push origin "$REF"
+          fi
diff --git a/.nvmrc b/.nvmrc
index 3f430af82b3dfa..9a2a0e219c9b28 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-v18
+v20
diff --git a/GOVERNANCE.md b/GOVERNANCE.md
index a40c7c6e137b7b..eb387832008a59 100644
--- a/GOVERNANCE.md
+++ b/GOVERNANCE.md
@@ -59,10 +59,10 @@ It is important to recognize that being a Peer is a privilege, not a right. That
 
 - Alexis Deveria (@Fyrd), Adobe, https://caniuse.com
 - Chris David Mills (@chrisdavidmills)
+- Claas Augner (@caugner), Mozilla
 - Daniel Beck (@ddbeck)
 - Estelle Weyl (@estelle), Open Web Docs (Peer for CSS compat data)
-- Jean-Yves Perrier (@teoli2003), Open Web Docs
-- Joe Medley (@jpmedley), Google
+- Hamish Willee (@hamishwillee), Mozilla
 - Luca Casonato (@lucacasonato), Deno
 - Michael Smith (@sideshowbarker), W3C
 - Richard Bloor (@rebloor)
@@ -173,6 +173,8 @@ The `@mdn/browser-compat-data` project would like to thank the following former
 
 - Daniel Beck (@ddbeck) (BCD co-owner until April 2022)
 - Eric Shepherd (@a2sheppy) (BCD peer until August 2020)
+- Jean-Yves Perrier (@teoli2003) (Peer)
+- Joe Medley (@jpmedley) (Peer)
 - John Whitlock (@jwhitlock) (Technical design of the former compat data project)
 - Kadir Topal (@atopal) (BCD co-owner until September 2020)
 - Rachel Andrew (@rachelandrew) (Peer)
diff --git a/README.md b/README.md
index 12c058e72c8740..05d2df88a21453 100644
--- a/README.md
+++ b/README.md
@@ -230,14 +230,24 @@ Thank you for your interest in contributing to this project! See [Contributing t
 
 Here are some projects using the data, as an [npm module](https://www.npmjs.com/browse/depended/@mdn/browser-compat-data) or directly:
 
-- [Add-ons Linter](https://github.com/mozilla/addons-linter) - the Add-ons Linter is used on [addons.mozilla.org](https://addons.mozilla.org/) and the [web-ext](https://github.com/mozilla/web-ext/) tool. It uses browser-compat-data to check that the Firefox version that the add-on lists support for does in fact support the APIs used by the add-on.
-- [caniuse](https://caniuse.com/) - In addition to the existing caniuse database, caniuse includes features from the MDN BCD project, formatted and interactive like any other caniuse support table.
-- [CanIUse Embed](https://caniuse.bitsofco.de/) - Thanks to the inclusion of MDN BCD data in caniuse, this embed tool allows for embedding BCD data into any project.
-- [Compat Report](https://addons.mozilla.org/en-US/firefox/addon/compat-report/) - Firefox Add-on that shows compatibility data for the current site in the developer tools.
-- [compat-tester](https://github.com/SphinxKnight/compat-tester) - Scan local documents for compatibility issues.
-- [Visual Studio Code](https://code.visualstudio.com) - Shows the compatibility information in [the code completion popup](https://code.visualstudio.com/updates/v1_25#_improved-accuracy-of-browser-compatibility-data).
-- [webhint.io](https://webhint.io/docs/user-guide/hints/hint-compat-api/) - Hints to check if your CSS HTML and JavaScript have deprecated or not broadly supported features.
-- [WebStorm](https://www.jetbrains.com/webstorm/whatsnew/#v2019-1-html-and-css) - JavaScript IDE allowing you to check whether all CSS properties you use are supported in the target browser version.
+- [Add-ons Linter](https://github.com/mozilla/addons-linter) - NPM package that checks add-ons for features that aren't supported by the targeted Firefox version. Used by [addons.mozilla.org](https://addons.mozilla.org/) and the [web-ext](https://github.com/mozilla/web-ext/) tool.
+- [ast-metadata-inferer](https://www.npmjs.com/package/ast-metadata-inferer) - NPM package that annotates JavaScript AST nodes with metadata derived from BCD data. Used by [eslint-plugin-compat](https://www.npmjs.com/package/eslint-plugin-compat).
+- [BCD Watch](https://bcd-watch.igalia.com/) - Website that shows a weekly report of BCD changes.
+- [caniuse](https://caniuse.com/) - Website that shows browser support tables based on caniuse and BCD data.
+- [caniuse-lite](https://github.com/browserslist/caniuse-lite) - NPM package that republishes BCD data in the caniuse format.
+- [CanIUse Embed](https://caniuse.bitsofco.de/) - Service that allows embedding caniuse (including BCD data) into any website.
+- [css-declaration-sorter](https://www.npmjs.com/package/css-declaration-sorter) - NPM package that sorts CSS properties alphabetically.
+- [csstype](https://www.npmjs.com/package/csstype) - NPM package that publishes strict TypeScript/Flow types for CSS.
+- [Compat Report](https://addons.mozilla.org/en-US/firefox/addon/compat-report/) - Firefox Add-on that shows BCD data for the current site in the developer tools.
+- [compat-tester](https://github.com/SphinxKnight/compat-tester) - NPM package that scans HTML, CSS and JS files for compatibility issues.
+- [JetBrains WebStorm](https://www.jetbrains.com/webstorm/) - IDE that uses BCD data to [check browser support of used CSS properties](https://www.jetbrains.com/guide/javascript/tips/browser-compatibility-css/) (see [2019.1 releasenotes](https://web.archive.org/web/20190524063428/http://www.jetbrains.com/webstorm/whatsnew/#:~:text=Browser%20compatibility%20check%20for%20CSS)) by [generating feature lists with support data](https://github.com/JetBrains/intellij-community/blob/master/xml/xml-psi-impl/mdn-doc-gen/src/GenerateMdnDocumentation.kt).
+- [JSR](https://jsr.io/) - Package registry that uses BCD data to [generate a list of web builtins](https://github.com/jsr-io/jsr/blob/main/tools/generate_web_symbols.ts).
+- [Mozilla Firefox](https://www.mozilla.org/firefox/) - Web browser that uses BCD data in the DevTools to show [CSS property compatibility data](https://searchfox.org/mozilla-central/source/devtools/shared/compatibility/README.md) mapped against a [list of non-retired browsers](https://github.com/firefox-devtools/remote-settings-mdn-browser-compat-data/).
+- [TypeScript](https://www.typescriptlang.org/) - Programming language that uses BCD data to [generate DOM typings](https://github.com/microsoft/TypeScript-DOM-lib-generator).
+- [Visual Studio Code](https://code.visualstudio.com) - IDE that uses BCD to show compatibility information for [CSS features](https://github.com/microsoft/vscode-custom-data/blob/c008a80baa3c6ea9d6757d2640eaab215b28f9a6/web-data/css/generateData.js#L349) (see [VSCode 1.25 release notes](https://code.visualstudio.com/updates/v1_25#_improved-accuracy-of-browser-compatibility-data)), and to [extract MDN urls for HTML elements](https://github.com/microsoft/vscode-custom-data/blob/c008a80baa3c6ea9d6757d2640eaab215b28f9a6/web-data/html/generateData.js#L53-L67).
+- [web-features](https://www.npmjs.com/package/web-features) - NPM package that publishes web feature groups with Baseline statuses based on BCD data.
+- [web-features-explorer](https://web-platform-dx.github.io/web-features-explorer/) - Website that visualizes web features by Baseline status and month.
+- [`webhint.io`](https://webhint.io/docs/user-guide/hints/hint-compat-api/) - Tool that uses BCD to checks CSS and HTML for unsupported features (see [`@hint/utils-compat-data` package](https://github.com/webhintio/hint/tree/main/packages/utils-compat-data)).
 
 ## Acknowledgments
 
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index d079d1471b30ff..83210ebafc9054 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,5 +1,1230 @@
 # @mdn/browser-compat-data release notes
 
+## [v5.6.23](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.23)
+
+December 10, 2024
+
+### Removals
+
+- `css.properties.object-position.applies_to_iframe_elements` ([#25354](https://github.com/mdn/browser-compat-data/pull/25354))
+- `css.types.color.color-contrast` ([#25305](https://github.com/mdn/browser-compat-data/pull/25305))
+
+### Additions
+
+- `browsers.opera_android.releases.85` ([#25347](https://github.com/mdn/browser-compat-data/pull/25347))
+- `browsers.opera_android.releases.86` ([#25347](https://github.com/mdn/browser-compat-data/pull/25347))
+- `browsers.opera.releases.116` ([#25347](https://github.com/mdn/browser-compat-data/pull/25347))
+- `browsers.opera.releases.117` ([#25347](https://github.com/mdn/browser-compat-data/pull/25347))
+- `webextensions.api.action.onUserSettingsChanged` ([#25343](https://github.com/mdn/browser-compat-data/pull/25343))
+- `webextensions.api.action.UserSettingsChange` ([#25343](https://github.com/mdn/browser-compat-data/pull/25343))
+
+### Statistics
+
+- 8 contributors have changed 44 files with 250 additions and 258 deletions in 25 commits ([`v5.6.22...v5.6.23`](https://github.com/mdn/browser-compat-data/compare/v5.6.22...v5.6.23))
+- 16,763 total features
+- 1,118 total contributors
+- 5,027 total stargazers
+
+## [v5.6.22](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.22)
+
+December 6, 2024
+
+### Renamings
+
+- `svg.elements.stop.stop-color` to `svg.global_attributes.stop-color` ([#25272](https://github.com/mdn/browser-compat-data/pull/25272))
+- `svg.elements.stop.stop-opacity` to `svg.global_attributes.stop-opacity` ([#25272](https://github.com/mdn/browser-compat-data/pull/25272))
+
+### Additions
+
+- `api.HTMLFencedFrameElement.sandbox` ([#25227](https://github.com/mdn/browser-compat-data/pull/25227))
+- `api.HTMLInputElement.alpha` ([#25270](https://github.com/mdn/browser-compat-data/pull/25270))
+- `api.HTMLInputElement.colorSpace` ([#25270](https://github.com/mdn/browser-compat-data/pull/25270))
+- `browsers.edge.releases.134` ([#25322](https://github.com/mdn/browser-compat-data/pull/25322))
+- `html.elements.input.alpha` ([#25270](https://github.com/mdn/browser-compat-data/pull/25270))
+- `html.elements.input.colorspace` ([#25270](https://github.com/mdn/browser-compat-data/pull/25270))
+
+### Statistics
+
+- 13 contributors have changed 70 files with 756 additions and 617 deletions in 29 commits ([`v5.6.21...v5.6.22`](https://github.com/mdn/browser-compat-data/compare/v5.6.21...v5.6.22))
+- 16,763 total features
+- 1,116 total contributors
+- 5,022 total stargazers
+
+## [v5.6.21](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.21)
+
+December 3, 2024
+
+### Removals
+
+- `browsers.nodejs.releases.10.5.0` ([#25014](https://github.com/mdn/browser-compat-data/pull/25014))
+
+### Additions
+
+- `browsers.nodejs.releases.21.1.0` ([#24988](https://github.com/mdn/browser-compat-data/pull/24988))
+- `webassembly.exceptionsFinal` ([#25252](https://github.com/mdn/browser-compat-data/pull/25252))
+- `webassembly.typedFunctionReferences` ([#25252](https://github.com/mdn/browser-compat-data/pull/25252))
+
+### Statistics
+
+- 6 contributors have changed 47 files with 741 additions and 310 deletions in 21 commits ([`v5.6.20...v5.6.21`](https://github.com/mdn/browser-compat-data/compare/v5.6.20...v5.6.21))
+- 16,758 total features
+- 1,116 total contributors
+- 5,013 total stargazers
+
+## [v5.6.20](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.20)
+
+November 29, 2024
+
+### Removals
+
+- `svg.elements.feFlood.flood-color` ([#25259](https://github.com/mdn/browser-compat-data/pull/25259))
+- `svg.elements.feFlood.flood-opacity` ([#25259](https://github.com/mdn/browser-compat-data/pull/25259))
+
+### Additions
+
+- `api.BrowserCaptureMediaStreamTrack.restrictTo` ([#25232](https://github.com/mdn/browser-compat-data/pull/25232))
+- `api.RestrictionTarget` ([#25232](https://github.com/mdn/browser-compat-data/pull/25232))
+- `api.RestrictionTarget.fromElement_static` ([#25232](https://github.com/mdn/browser-compat-data/pull/25232))
+- `api.Serial.requestPort.allowedBluetoothServiceClassIds_option` ([#25256](https://github.com/mdn/browser-compat-data/pull/25256))
+- `api.Serial.requestPort.filters_bluetoothServiceClassId` ([#25256](https://github.com/mdn/browser-compat-data/pull/25256))
+- `api.SerialPort.connect_event.bluetooth_rfcomm` ([#25234](https://github.com/mdn/browser-compat-data/pull/25234))
+- `api.SerialPort.disconnect_event.bluetooth_rfcomm` ([#25234](https://github.com/mdn/browser-compat-data/pull/25234))
+- `api.SerialPort.getInfo.bluetoothServiceClassId` ([#25256](https://github.com/mdn/browser-compat-data/pull/25256))
+- `css.selectors.xr-overlay` ([#25253](https://github.com/mdn/browser-compat-data/pull/25253))
+- `css.types.transform-function.perspective.none` ([#25255](https://github.com/mdn/browser-compat-data/pull/25255))
+
+### Statistics
+
+- 8 contributors have changed 46 files with 713 additions and 315 deletions in 42 commits ([`v5.6.19...v5.6.20`](https://github.com/mdn/browser-compat-data/compare/v5.6.19...v5.6.20))
+- 16,756 total features
+- 1,116 total contributors
+- 5,007 total stargazers
+
+## [v5.6.19](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.19)
+
+November 26, 2024
+
+### Removals
+
+- `api.NavigateEvent.restoreScroll` ([#25229](https://github.com/mdn/browser-compat-data/pull/25229))
+- `api.NavigateEvent.transitionWhile` ([#25229](https://github.com/mdn/browser-compat-data/pull/25229))
+- `css.selectors.target-within` ([#25188](https://github.com/mdn/browser-compat-data/pull/25188))
+- `css.types.image.image` ([#25190](https://github.com/mdn/browser-compat-data/pull/25190))
+
+### Additions
+
+- `browsers.firefox_android.releases.136` ([#25211](https://github.com/mdn/browser-compat-data/pull/25211))
+- `browsers.firefox.releases.136` ([#25211](https://github.com/mdn/browser-compat-data/pull/25211))
+- `html.elements.input.webkitdirectory` ([#25036](https://github.com/mdn/browser-compat-data/pull/25036))
+- `webassembly.memory64` ([#25230](https://github.com/mdn/browser-compat-data/pull/25230))
+- `webextensions.manifest.chrome_settings_overrides.search_provider.search_url_get_params` ([#25160](https://github.com/mdn/browser-compat-data/pull/25160))
+- `webextensions.manifest.chrome_settings_overrides.search_provider.suggest_url_get_params` ([#25160](https://github.com/mdn/browser-compat-data/pull/25160))
+
+### Renamings
+
+- `css.types.image.gradient` to `css.types.gradient` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.conic-gradient` to `css.types.gradient.conic-gradient` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.conic-gradient.doubleposition` to `css.types.gradient.conic-gradient.doubleposition` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.conic-gradient.hue_interpolation_method` to `css.types.gradient.conic-gradient.hue_interpolation_method` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.conic-gradient.interpolation_color_space` to `css.types.gradient.conic-gradient.interpolation_color_space` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.linear-gradient` to `css.types.gradient.linear-gradient` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.linear-gradient.doubleposition` to `css.types.gradient.linear-gradient.doubleposition` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.linear-gradient.hue_interpolation_method` to `css.types.gradient.linear-gradient.hue_interpolation_method` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.linear-gradient.interpolation_color_space` to `css.types.gradient.linear-gradient.interpolation_color_space` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.linear-gradient.interpolation_hints` to `css.types.gradient.linear-gradient.interpolation_hints` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.linear-gradient.premultiplied_gradients` to `css.types.gradient.linear-gradient.premultiplied_gradients` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.linear-gradient.to` to `css.types.gradient.linear-gradient.to` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.linear-gradient.unitless_0_angle` to `css.types.gradient.linear-gradient.unitless_0_angle` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.radial-gradient` to `css.types.gradient.radial-gradient` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.radial-gradient.at` to `css.types.gradient.radial-gradient.at` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.radial-gradient.doubleposition` to `css.types.gradient.radial-gradient.doubleposition` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.radial-gradient.hue_interpolation_method` to `css.types.gradient.radial-gradient.hue_interpolation_method` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.radial-gradient.interpolation_color_space` to `css.types.gradient.radial-gradient.interpolation_color_space` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.radial-gradient.interpolation_hints` to `css.types.gradient.radial-gradient.interpolation_hints` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.radial-gradient.premultiplied_gradients` to `css.types.gradient.radial-gradient.premultiplied_gradients` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-conic-gradient` to `css.types.gradient.repeating-conic-gradient` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-conic-gradient.hue_interpolation_method` to `css.types.gradient.repeating-conic-gradient.hue_interpolation_method` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-conic-gradient.interpolation_color_space` to `css.types.gradient.repeating-conic-gradient.interpolation_color_space` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-linear-gradient` to `css.types.gradient.repeating-linear-gradient` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-linear-gradient.doubleposition` to `css.types.gradient.repeating-linear-gradient.doubleposition` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-linear-gradient.hue_interpolation_method` to `css.types.gradient.repeating-linear-gradient.hue_interpolation_method` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-linear-gradient.interpolation_color_space` to `css.types.gradient.repeating-linear-gradient.interpolation_color_space` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-linear-gradient.interpolation_hints` to `css.types.gradient.repeating-linear-gradient.interpolation_hints` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-linear-gradient.to` to `css.types.gradient.repeating-linear-gradient.to` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-linear-gradient.unitless_0_angle` to `css.types.gradient.repeating-linear-gradient.unitless_0_angle` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-radial-gradient` to `css.types.gradient.repeating-radial-gradient` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-radial-gradient.at` to `css.types.gradient.repeating-radial-gradient.at` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-radial-gradient.doubleposition` to `css.types.gradient.repeating-radial-gradient.doubleposition` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-radial-gradient.hue_interpolation_method` to `css.types.gradient.repeating-radial-gradient.hue_interpolation_method` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-radial-gradient.interpolation_color_space` to `css.types.gradient.repeating-radial-gradient.interpolation_color_space` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+- `css.types.image.gradient.repeating-radial-gradient.interpolation_hints` to `css.types.gradient.repeating-radial-gradient.interpolation_hints` ([#25191](https://github.com/mdn/browser-compat-data/pull/25191))
+
+### Statistics
+
+- 10 contributors have changed 1,270 files with 19,301 additions and 2,480 deletions in 41 commits ([`v5.6.18...v5.6.19`](https://github.com/mdn/browser-compat-data/compare/v5.6.18...v5.6.19))
+- 16,748 total features
+- 1,116 total contributors
+- 5,007 total stargazers
+
+## [v5.6.18](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.18)
+
+November 22, 2024
+
+### Removals
+
+- `css.properties.-webkit-mask-box-image-outset` ([#25155](https://github.com/mdn/browser-compat-data/pull/25155))
+- `css.properties.-webkit-mask-box-image-repeat` ([#25155](https://github.com/mdn/browser-compat-data/pull/25155))
+- `css.properties.-webkit-mask-box-image-slice` ([#25155](https://github.com/mdn/browser-compat-data/pull/25155))
+- `css.properties.-webkit-mask-box-image-source` ([#25155](https://github.com/mdn/browser-compat-data/pull/25155))
+- `css.properties.-webkit-mask-box-image-width` ([#25155](https://github.com/mdn/browser-compat-data/pull/25155))
+- `svg.global_attributes.stop-color` ([#25130](https://github.com/mdn/browser-compat-data/pull/25130))
+
+### Additions
+
+- `api.DocumentPictureInPicture.requestWindow.option_disallowReturnToOpener` ([#25173](https://github.com/mdn/browser-compat-data/pull/25173))
+- `api.DocumentPictureInPicture.requestWindow.option_preferInitialWindowPlacement` ([#25173](https://github.com/mdn/browser-compat-data/pull/25173))
+- `api.GPUCommandEncoder.beginRenderPass.separate_depth_stencil_read-only` ([#25157](https://github.com/mdn/browser-compat-data/pull/25157))
+- `api.GPUDevice.createBindGroupLayout.storageTexture_access_read-write_read-only` ([#25137](https://github.com/mdn/browser-compat-data/pull/25137))
+- `api.GPUDevice.createBindGroupLayout.texture_rgb10a2uint` ([#25149](https://github.com/mdn/browser-compat-data/pull/25149))
+- `api.GPUDevice.createRenderPipeline.optional_depthcompare_depthwriteenabled` ([#25158](https://github.com/mdn/browser-compat-data/pull/25158))
+- `api.GPUDevice.createRenderPipeline.texture_rgb10a2uint` ([#25149](https://github.com/mdn/browser-compat-data/pull/25149))
+- `api.GPUDevice.createRenderPipeline.vertex_unorm10-10-10-2` ([#25153](https://github.com/mdn/browser-compat-data/pull/25153))
+- `api.GPUDevice.createRenderPipelineAsync.optional_depthcompare_depthwriteenabled` ([#25158](https://github.com/mdn/browser-compat-data/pull/25158))
+- `api.GPUDevice.createRenderPipelineAsync.texture_rgb10a2uint` ([#25149](https://github.com/mdn/browser-compat-data/pull/25149))
+- `api.GPUDevice.createRenderPipelineAsync.vertex_unorm10-10-10-2` ([#25153](https://github.com/mdn/browser-compat-data/pull/25153))
+- `api.GPUDevice.createTexture.texture_rgb10a2uint` ([#25149](https://github.com/mdn/browser-compat-data/pull/25149))
+- `api.GPUDevice.importExternalTexture.color_space_display-p3` ([#25156](https://github.com/mdn/browser-compat-data/pull/25156))
+- `api.GPUTexture.createView.texture_rgb10a2uint` ([#25149](https://github.com/mdn/browser-compat-data/pull/25149))
+- `api.GPUTexture.format.texture_rgb10a2uint` ([#25149](https://github.com/mdn/browser-compat-data/pull/25149))
+- `api.MessageEvent.userActivation` ([#25162](https://github.com/mdn/browser-compat-data/pull/25162))
+- `api.MessagePort.postMessage.options_includeUserActivation_parameter` ([#25162](https://github.com/mdn/browser-compat-data/pull/25162))
+- `api.WGSLLanguageFeatures.extension_packed_4x8_integer_dot_product` ([#25170](https://github.com/mdn/browser-compat-data/pull/25170))
+- `api.WGSLLanguageFeatures.extension_readonly_and_readwrite_storage_textures` ([#25137](https://github.com/mdn/browser-compat-data/pull/25137))
+- `api.WGSLLanguageFeatures.extension_unrestricted_pointer_parameters` ([#25171](https://github.com/mdn/browser-compat-data/pull/25171))
+- `api.Window.postMessage.options_includeUserActivation_parameter` ([#25162](https://github.com/mdn/browser-compat-data/pull/25162))
+- `api.Worker.postMessage.options_includeUserActivation_parameter` ([#25162](https://github.com/mdn/browser-compat-data/pull/25162))
+- `css.selectors.has-slotted` ([#25129](https://github.com/mdn/browser-compat-data/pull/25129))
+- `http.headers.Sec-WebSocket-Accept` ([#25115](https://github.com/mdn/browser-compat-data/pull/25115))
+- `http.headers.Sec-WebSocket-Extensions` ([#25115](https://github.com/mdn/browser-compat-data/pull/25115))
+- `http.headers.Sec-WebSocket-Key` ([#25115](https://github.com/mdn/browser-compat-data/pull/25115))
+- `http.headers.Sec-WebSocket-Protocol` ([#25115](https://github.com/mdn/browser-compat-data/pull/25115))
+- `http.headers.Sec-WebSocket-Version` ([#25115](https://github.com/mdn/browser-compat-data/pull/25115))
+- `http.headers.Server-Timing.trailer` ([#25141](https://github.com/mdn/browser-compat-data/pull/25141))
+
+### Statistics
+
+- 16 contributors have changed 96 files with 2,020 additions and 882 deletions in 50 commits ([`v5.6.17...v5.6.18`](https://github.com/mdn/browser-compat-data/compare/v5.6.17...v5.6.18))
+- 16,748 total features
+- 1,116 total contributors
+- 4,993 total stargazers
+
+## [v5.6.17](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.17)
+
+November 19, 2024
+
+### Removals
+
+- `api.MLOperand.dataType` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLOperand.shape` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `css.at-rules.custom-media` ([#25125](https://github.com/mdn/browser-compat-data/pull/25125))
+- `css.properties.word-wrap` ([#25097](https://github.com/mdn/browser-compat-data/pull/25097))
+- `css.types.time-percentage` ([#25126](https://github.com/mdn/browser-compat-data/pull/25126))
+- `mathml.elements.ms.lquote_rquote_attributes` ([#25108](https://github.com/mdn/browser-compat-data/pull/25108))
+
+### Additions
+
+- `api.MLContext.dispatch` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLContext.opSupportLimits` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.cumulativeSum` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.dequantizeLinear` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.gatherElements` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.gatherND` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.logicalAnd` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.logicalOr` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.logicalXor` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.quantizeLinear` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.scatterElements` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.scatterND` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.sign` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLGraphBuilder.tile` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+- `api.MLOperand.MLNumber` ([#25065](https://github.com/mdn/browser-compat-data/pull/25065))
+
+### Statistics
+
+- 10 contributors have changed 1,365 files with 9,391 additions and 7,288 deletions in 32 commits ([`v5.6.16...v5.6.17`](https://github.com/mdn/browser-compat-data/compare/v5.6.16...v5.6.17))
+- 16,725 total features
+- 1,116 total contributors
+- 4,989 total stargazers
+
+## [v5.6.16](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.16)
+
+November 18, 2024
+
+### Removals
+
+- `api.HTMLDetailsElement.toggle_event` ([#24927](https://github.com/mdn/browser-compat-data/pull/24927))
+- `webextensions.api.runtime.getContext` ([#25078](https://github.com/mdn/browser-compat-data/pull/25078))
+
+### Additions
+
+- `api.AbortController.abort.reason_parameter` ([#25068](https://github.com/mdn/browser-compat-data/pull/25068))
+- `api.GPUComputePassEncoder.setBindGroup.unset_bind_group` ([#24936](https://github.com/mdn/browser-compat-data/pull/24936))
+- `api.GPURenderBundleEncoder.setBindGroup.unset_bind_group` ([#24936](https://github.com/mdn/browser-compat-data/pull/24936))
+- `api.GPURenderPassEncoder.setBindGroup.unset_bind_group` ([#24936](https://github.com/mdn/browser-compat-data/pull/24936))
+- `api.HTMLElement.beforetoggle_event.dialog_elements` ([#24927](https://github.com/mdn/browser-compat-data/pull/24927))
+- `api.HTMLElement.beforetoggle_event.popover_elements` ([#24927](https://github.com/mdn/browser-compat-data/pull/24927))
+- `api.HTMLElement.inert.ignores_find_in_page` ([#24925](https://github.com/mdn/browser-compat-data/pull/24925))
+- `api.HTMLElement.toggle_event.details_elements` ([#24927](https://github.com/mdn/browser-compat-data/pull/24927))
+- `api.HTMLElement.toggle_event.dialog_elements` ([#24927](https://github.com/mdn/browser-compat-data/pull/24927))
+- `api.HTMLElement.toggle_event.popover_elements` ([#24927](https://github.com/mdn/browser-compat-data/pull/24927))
+- `api.PublicKeyCredential.signalAllAcceptedCredentials_static` ([#25070](https://github.com/mdn/browser-compat-data/pull/25070))
+- `api.PublicKeyCredential.signalCurrentUserDetails_static` ([#25070](https://github.com/mdn/browser-compat-data/pull/25070))
+- `api.PublicKeyCredential.signalUnknownCredential_static` ([#25070](https://github.com/mdn/browser-compat-data/pull/25070))
+- `browsers.nodejs.releases.20.8.0` ([#25020](https://github.com/mdn/browser-compat-data/pull/25020))
+- `webextensions.api.runtime.getContexts` ([#25078](https://github.com/mdn/browser-compat-data/pull/25078))
+
+### Statistics
+
+- 14 contributors have changed 109 files with 1,688 additions and 1,079 deletions in 39 commits ([`v5.6.15...v5.6.16`](https://github.com/mdn/browser-compat-data/compare/v5.6.15...v5.6.16))
+- 16,716 total features
+- 1,116 total contributors
+- 4,986 total stargazers
+
+## [v5.6.15](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.15)
+
+November 12, 2024
+
+### Removals
+
+- `css.selectors.blank` ([#24976](https://github.com/mdn/browser-compat-data/pull/24976))
+- `css.selectors.column` ([#24976](https://github.com/mdn/browser-compat-data/pull/24976))
+- `http.headers.Sec-CH-Save-Data` ([#25043](https://github.com/mdn/browser-compat-data/pull/25043))
+
+### Additions
+
+- `api.ServiceWorkerContainer.worker_support` ([#24993](https://github.com/mdn/browser-compat-data/pull/24993))
+- `browsers.nodejs.releases.22.1.0` ([#25050](https://github.com/mdn/browser-compat-data/pull/25050))
+
+### Statistics
+
+- 10 contributors have changed 44 files with 247 additions and 315 deletions in 25 commits ([`v5.6.14...v5.6.15`](https://github.com/mdn/browser-compat-data/compare/v5.6.14...v5.6.15))
+- 16,704 total features
+- 1,115 total contributors
+- 4,975 total stargazers
+
+## [v5.6.14](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.14)
+
+November 8, 2024
+
+### Removals
+
+- `css.types.frequency` ([#24969](https://github.com/mdn/browser-compat-data/pull/24969))
+- `css.types.frequency-percentage` ([#24969](https://github.com/mdn/browser-compat-data/pull/24969))
+- `css.types.frequency.hz` ([#24969](https://github.com/mdn/browser-compat-data/pull/24969))
+- `css.types.frequency.khz` ([#24969](https://github.com/mdn/browser-compat-data/pull/24969))
+
+### Additions
+
+- `browsers.chrome_android.releases.134` ([#24995](https://github.com/mdn/browser-compat-data/pull/24995))
+- `browsers.chrome.releases.134` ([#24995](https://github.com/mdn/browser-compat-data/pull/24995))
+- `browsers.nodejs.releases.23.0.0` ([#24953](https://github.com/mdn/browser-compat-data/pull/24953))
+- `browsers.webview_android.releases.134` ([#24995](https://github.com/mdn/browser-compat-data/pull/24995))
+- `html.manifest.display.browser` ([#24970](https://github.com/mdn/browser-compat-data/pull/24970))
+- `html.manifest.display.fullscreen` ([#24970](https://github.com/mdn/browser-compat-data/pull/24970))
+- `html.manifest.display.minimal-ui` ([#24970](https://github.com/mdn/browser-compat-data/pull/24970))
+- `html.manifest.display.standalone` ([#24970](https://github.com/mdn/browser-compat-data/pull/24970))
+
+### Statistics
+
+- 8 contributors have changed 42 files with 362 additions and 308 deletions in 21 commits ([`v5.6.13...v5.6.14`](https://github.com/mdn/browser-compat-data/compare/v5.6.13...v5.6.14))
+- 16,706 total features
+- 1,115 total contributors
+- 4,963 total stargazers
+
+## [v5.6.13](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.13)
+
+November 5, 2024
+
+### Removals
+
+- `api.HTMLButtonElement.commandfor` ([#24917](https://github.com/mdn/browser-compat-data/pull/24917))
+- `http.headers.Permissions-Policy.gamepad` ([#23470](https://github.com/mdn/browser-compat-data/pull/23470))
+- `http.headers.Permissions-Policy.speaker-selection` ([#23470](https://github.com/mdn/browser-compat-data/pull/23470))
+
+### Additions
+
+- `api.CredentialsContainer.create.publicKey_option.attestation` ([#24236](https://github.com/mdn/browser-compat-data/pull/24236))
+- `api.CredentialsContainer.create.publicKey_option.attestation.direct` ([#24236](https://github.com/mdn/browser-compat-data/pull/24236))
+- `api.CredentialsContainer.create.publicKey_option.attestation.enterprise` ([#24236](https://github.com/mdn/browser-compat-data/pull/24236))
+- `api.CredentialsContainer.create.publicKey_option.attestation.indirect` ([#24236](https://github.com/mdn/browser-compat-data/pull/24236))
+- `api.CredentialsContainer.create.publicKey_option.attestation.none` ([#24236](https://github.com/mdn/browser-compat-data/pull/24236))
+- `api.GPUCommandEncoder.beginComputePass.timestampWrites` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUCommandEncoder.beginRenderPass.depthSlice_option` ([#24905](https://github.com/mdn/browser-compat-data/pull/24905))
+- `api.GPUCommandEncoder.beginRenderPass.timestampWrites` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUDevice.createComputePipeline.optional_entryPoint` ([#24924](https://github.com/mdn/browser-compat-data/pull/24924))
+- `api.GPUDevice.createComputePipelineAsync.optional_entryPoint` ([#24924](https://github.com/mdn/browser-compat-data/pull/24924))
+- `api.GPUDevice.createQuerySet.timestamp` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUDevice.createRenderPipeline.dual-source-blending` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUDevice.createRenderPipeline.optional_entryPoint` ([#24924](https://github.com/mdn/browser-compat-data/pull/24924))
+- `api.GPUDevice.createRenderPipelineAsync.dual-source-blending` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUDevice.createRenderPipelineAsync.optional_entryPoint` ([#24924](https://github.com/mdn/browser-compat-data/pull/24924))
+- `api.GPUQuerySet.type.timestamp` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUQueue.copyExternalImageToTexture.htmlimageelement_imagedata_source` ([#24926](https://github.com/mdn/browser-compat-data/pull/24926))
+- `api.GPUQueue.submit.validates_command_buffer_uniqueness` ([#24881](https://github.com/mdn/browser-compat-data/pull/24881))
+- `api.GPUSupportedFeatures.feature_bgra8unorm-storage` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_clip-distances` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_depth-clip-control` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_depth32float-stencil8` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_dual-source-blending` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_float32-blendable` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_float32-filterable` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_indirect-first-instance` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_rg11b10ufloat-renderable` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_shader-f16` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_texture-compression-astc` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_texture-compression-bc` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_texture-compression-etc2` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.GPUSupportedFeatures.feature_timestamp-query` ([#24760](https://github.com/mdn/browser-compat-data/pull/24760))
+- `api.HTMLButtonElement.commandForElement` ([#24917](https://github.com/mdn/browser-compat-data/pull/24917))
+- `api.ReadableStreamBYOBReader.read.options_min_parameter` ([#24923](https://github.com/mdn/browser-compat-data/pull/24923))
+- `browsers.nodejs.releases.12.19.0` ([#24906](https://github.com/mdn/browser-compat-data/pull/24906))
+- `browsers.nodejs.releases.14.17.0` ([#24900](https://github.com/mdn/browser-compat-data/pull/24900))
+- `browsers.nodejs.releases.20.17.0` ([#24923](https://github.com/mdn/browser-compat-data/pull/24923))
+- `browsers.nodejs.releases.21.7.0` ([#24923](https://github.com/mdn/browser-compat-data/pull/24923))
+- `css.properties.text-box` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+- `css.properties.text-box-edge` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+- `css.properties.text-box-edge.auto` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+- `css.properties.text-box-trim` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+- `css.properties.text-box-trim.none` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+- `css.properties.text-box-trim.trim-both` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+- `css.properties.text-box-trim.trim-end` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+- `css.properties.text-box-trim.trim-start` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+- `css.properties.text-box.normal` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+- `html.elements.button.command` ([#24917](https://github.com/mdn/browser-compat-data/pull/24917))
+- `html.elements.button.commandfor` ([#24917](https://github.com/mdn/browser-compat-data/pull/24917))
+- `javascript.builtins.RegExp.escape` ([#24939](https://github.com/mdn/browser-compat-data/pull/24939))
+
+### Statistics
+
+- 12 contributors have changed 222 files with 3,253 additions and 1,424 deletions in 38 commits ([`v5.6.12...v5.6.13`](https://github.com/mdn/browser-compat-data/compare/v5.6.12...v5.6.13))
+- 16,706 total features
+- 1,113 total contributors
+- 4,961 total stargazers
+
+## [v5.6.12](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.12)
+
+November 1, 2024
+
+### Removals
+
+- `css.properties.-webkit-text-decoration-skip` ([#24884](https://github.com/mdn/browser-compat-data/pull/24884))
+- `css.properties.-webkit-user-modify` ([#24885](https://github.com/mdn/browser-compat-data/pull/24885))
+
+### Additions
+
+- `browsers.edge.releases.133` ([#24890](https://github.com/mdn/browser-compat-data/pull/24890))
+- `browsers.firefox_android.releases.135` ([#24871](https://github.com/mdn/browser-compat-data/pull/24871))
+- `browsers.firefox.releases.135` ([#24871](https://github.com/mdn/browser-compat-data/pull/24871))
+- `browsers.nodejs.releases.18.13.0` ([#24797](https://github.com/mdn/browser-compat-data/pull/24797))
+- `browsers.nodejs.releases.19.2.0` ([#24797](https://github.com/mdn/browser-compat-data/pull/24797))
+- `browsers.safari_ios.releases.18.2` ([#24901](https://github.com/mdn/browser-compat-data/pull/24901))
+- `browsers.safari.releases.18.2` ([#24901](https://github.com/mdn/browser-compat-data/pull/24901))
+- `browsers.webview_ios.releases.18.2` ([#24901](https://github.com/mdn/browser-compat-data/pull/24901))
+- `svg.global_attributes.autofocus` ([#24574](https://github.com/mdn/browser-compat-data/pull/24574))
+
+### Statistics
+
+- 9 contributors have changed 57 files with 330 additions and 206 deletions in 32 commits ([`v5.6.11...v5.6.12`](https://github.com/mdn/browser-compat-data/compare/v5.6.11...v5.6.12))
+- 16,663 total features
+- 1,112 total contributors
+- 4,956 total stargazers
+
+## [v5.6.11](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.11)
+
+October 29, 2024
+
+### Removals
+
+- `api.InkPresenter` ([#24856](https://github.com/mdn/browser-compat-data/pull/24856))
+- `api.InkPresenter.expectedImprovement` ([#24856](https://github.com/mdn/browser-compat-data/pull/24856))
+- `api.InkPresenter.presentationArea` ([#24856](https://github.com/mdn/browser-compat-data/pull/24856))
+- `api.InkPresenter.updateInkTrailStartPoint` ([#24856](https://github.com/mdn/browser-compat-data/pull/24856))
+- `css.properties.align-self.positioned_boxes` ([#24865](https://github.com/mdn/browser-compat-data/pull/24865))
+- `css.properties.justify-self.positioned_boxes` ([#24865](https://github.com/mdn/browser-compat-data/pull/24865))
+- `css.properties.place-self.positioned_boxes` ([#24865](https://github.com/mdn/browser-compat-data/pull/24865))
+
+### Additions
+
+- `api.DelegatedInkTrailPresenter` ([#24856](https://github.com/mdn/browser-compat-data/pull/24856))
+- `api.DelegatedInkTrailPresenter.expectedImprovement` ([#24856](https://github.com/mdn/browser-compat-data/pull/24856))
+- `api.DelegatedInkTrailPresenter.presentationArea` ([#24856](https://github.com/mdn/browser-compat-data/pull/24856))
+- `api.DelegatedInkTrailPresenter.updateInkTrailStartPoint` ([#24856](https://github.com/mdn/browser-compat-data/pull/24856))
+- `api.GPUDevice.createRenderPipeline.validates_depth_bias_for_line_and_point_topologies` ([#24811](https://github.com/mdn/browser-compat-data/pull/24811))
+- `api.GPUDevice.createRenderPipelineAsync.validates_depth_bias_for_line_and_point_topologies` ([#24811](https://github.com/mdn/browser-compat-data/pull/24811))
+- `api.HTMLAnchorElement.hrefTranslate` ([#24861](https://github.com/mdn/browser-compat-data/pull/24861))
+- `api.SharedStorage.createWorklet` ([#24855](https://github.com/mdn/browser-compat-data/pull/24855))
+- `api.SharedStorage.get` ([#24855](https://github.com/mdn/browser-compat-data/pull/24855))
+- `api.SharedStorage.run` ([#24855](https://github.com/mdn/browser-compat-data/pull/24855))
+- `api.SharedStorage.selectURL` ([#24855](https://github.com/mdn/browser-compat-data/pull/24855))
+- `api.SharedStorage.worklet` ([#24855](https://github.com/mdn/browser-compat-data/pull/24855))
+- `css.properties.align-self.position_absolute_context` ([#24865](https://github.com/mdn/browser-compat-data/pull/24865))
+- `css.properties.display.contents.focusable_elements` ([#24766](https://github.com/mdn/browser-compat-data/pull/24766))
+- `css.properties.justify-self.position_absolute_context` ([#24865](https://github.com/mdn/browser-compat-data/pull/24865))
+- `css.properties.place-self.position_absolute_context` ([#24865](https://github.com/mdn/browser-compat-data/pull/24865))
+- `html.elements.a.hreftranslate` ([#24861](https://github.com/mdn/browser-compat-data/pull/24861))
+- `javascript.builtins.Uint8Array.fromBase64` ([#24863](https://github.com/mdn/browser-compat-data/pull/24863))
+- `javascript.builtins.Uint8Array.fromHex` ([#24863](https://github.com/mdn/browser-compat-data/pull/24863))
+- `javascript.builtins.Uint8Array.setFromBase64` ([#24863](https://github.com/mdn/browser-compat-data/pull/24863))
+- `javascript.builtins.Uint8Array.setFromHex` ([#24863](https://github.com/mdn/browser-compat-data/pull/24863))
+- `javascript.builtins.Uint8Array.toBase64` ([#24863](https://github.com/mdn/browser-compat-data/pull/24863))
+- `javascript.builtins.Uint8Array.toHex` ([#24863](https://github.com/mdn/browser-compat-data/pull/24863))
+
+### Statistics
+
+- 9 contributors have changed 38 files with 801 additions and 165 deletions in 22 commits ([`v5.6.10...v5.6.11`](https://github.com/mdn/browser-compat-data/compare/v5.6.10...v5.6.11))
+- 16,664 total features
+- 1,111 total contributors
+- 4,957 total stargazers
+
+## [v5.6.10](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.10)
+
+October 25, 2024
+
+### Removals
+
+- `api.NavigateEvent.canTransition` ([#24792](https://github.com/mdn/browser-compat-data/pull/24792))
+- `api.Permissions.permission_bluetooth` ([#24769](https://github.com/mdn/browser-compat-data/pull/24769))
+- `api.ServiceWorkerContainer.error_event` ([#24820](https://github.com/mdn/browser-compat-data/pull/24820))
+- `mathml.elements.maction.actiontype.statusline` ([#24820](https://github.com/mdn/browser-compat-data/pull/24820))
+
+### Additions
+
+- `api.PaymentManager.secure_context_required` ([#24812](https://github.com/mdn/browser-compat-data/pull/24812))
+- `api.PaymentRequestUpdateEvent.secure_context_required` ([#24812](https://github.com/mdn/browser-compat-data/pull/24812))
+- `api.Request.Request.init_keepalive_parameter` ([#24656](https://github.com/mdn/browser-compat-data/pull/24656))
+- `css.properties.align-self.positioned_boxes` ([#24789](https://github.com/mdn/browser-compat-data/pull/24789))
+- `css.properties.justify-self.positioned_boxes` ([#24789](https://github.com/mdn/browser-compat-data/pull/24789))
+- `css.properties.place-self.positioned_boxes` ([#24789](https://github.com/mdn/browser-compat-data/pull/24789))
+- `html.elements.iframe.allow.accelerometer` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.ambient-light-sensor` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.attribution-reporting` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.autoplay` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.bluetooth` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.browsing-topics` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.camera` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.compute-pressure` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.cross-origin-isolated` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.display-capture` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.document-domain` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.encrypted-media` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.fullscreen` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.gamepad` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.geolocation` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.gyroscope` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.hid` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.identity-credentials-get` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.idle-detection` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.local-fonts` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.magnetometer` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.microphone` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.midi` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.otp-credentials` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.payment` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.picture-in-picture` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.publickey-credentials-create` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.publickey-credentials-get` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.screen-wake-lock` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.serial` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.speaker-selection` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.storage-access` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.usb` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.web-share` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.wildcards` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.window-management` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `html.elements.iframe.allow.xr-spatial-tracking` ([#23487](https://github.com/mdn/browser-compat-data/pull/23487))
+- `http.headers.Clear-Site-Data.wildcard` ([#24822](https://github.com/mdn/browser-compat-data/pull/24822))
+
+### Statistics
+
+- 9 contributors have changed 50 files with 1,999 additions and 241 deletions in 29 commits ([`v5.6.9...v5.6.10`](https://github.com/mdn/browser-compat-data/compare/v5.6.9...v5.6.10))
+- 16,648 total features
+- 1,111 total contributors
+- 4,950 total stargazers
+
+## [v5.6.9](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.9)
+
+October 22, 2024
+
+### Additions
+
+- `api.CSSMarginRule` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `api.CSSMarginRule.name` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `api.CSSMarginRule.style` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `api.Request.duplex` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.bottom-center` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.bottom-left` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.bottom-left-corner` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.bottom-right` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.bottom-right-corner` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.left-bottom` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.left-middle` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.left-top` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.right-bottom` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.right-middle` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.right-top` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.top-center` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.top-left` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.top-left-corner` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.top-right` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.at-rules.page.top-right-corner` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.properties.anchor-scope` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.properties.anchor-scope.all` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.properties.anchor-scope.none` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.properties.font-variant-emoji.emoji` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.properties.font-variant-emoji.normal` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.properties.font-variant-emoji.text` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.properties.font-variant-emoji.unicode` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+- `css.selectors.details-content` ([#24778](https://github.com/mdn/browser-compat-data/pull/24778))
+
+### Statistics
+
+- 6 contributors have changed 53 files with 1,275 additions and 114 deletions in 10 commits ([`v5.6.8...v5.6.9`](https://github.com/mdn/browser-compat-data/compare/v5.6.8...v5.6.9))
+- 16,608 total features
+- 1,111 total contributors
+- 4,949 total stargazers
+
+## [v5.6.8](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.8)
+
+October 18, 2024
+
+### Removals
+
+- `css.properties.column-fill.balance-all` ([#23578](https://github.com/mdn/browser-compat-data/pull/23578))
+
+### Additions
+
+- `api.Worker.worker_support` ([#24610](https://github.com/mdn/browser-compat-data/pull/24610))
+- `html.elements.video.autoplay.requires_muted_audio` ([#23635](https://github.com/mdn/browser-compat-data/pull/23635))
+
+### Statistics
+
+- 8 contributors have changed 46 files with 252 additions and 168 deletions in 24 commits ([`v5.6.7...v5.6.8`](https://github.com/mdn/browser-compat-data/compare/v5.6.7...v5.6.8))
+- 16,580 total features
+- 1,111 total contributors
+- 4,947 total stargazers
+
+## [v5.6.7](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.7)
+
+October 15, 2024
+
+### Additions
+
+- `api.GPUCanvasContext.configure.toneMapping` ([#24701](https://github.com/mdn/browser-compat-data/pull/24701))
+- `api.GPUCanvasContext.getConfiguration` ([#24701](https://github.com/mdn/browser-compat-data/pull/24701))
+- `api.ProgressEvent.worker_support` ([#24620](https://github.com/mdn/browser-compat-data/pull/24620))
+- `css.properties.display.none.option_is_hidden` ([#24392](https://github.com/mdn/browser-compat-data/pull/24392))
+- `css.properties.ruby-position.inter-character` ([#24153](https://github.com/mdn/browser-compat-data/pull/24153))
+- `css.properties.ruby-position.over` ([#24153](https://github.com/mdn/browser-compat-data/pull/24153))
+- `css.properties.ruby-position.under` ([#24153](https://github.com/mdn/browser-compat-data/pull/24153))
+
+### Statistics
+
+- 8 contributors have changed 45 files with 711 additions and 84 deletions in 19 commits ([`v5.6.6...v5.6.7`](https://github.com/mdn/browser-compat-data/compare/v5.6.6...v5.6.7))
+- 16,579 total features
+- 1,111 total contributors
+- 4,946 total stargazers
+
+## [v5.6.6](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.6)
+
+October 11, 2024
+
+### Removals
+
+- `api.FetchEvent.replacesClientId` ([#24443](https://github.com/mdn/browser-compat-data/pull/24443))
+- `api.IDBDatabase.transaction.option_durability_parameter_readwriteflush` ([#23592](https://github.com/mdn/browser-compat-data/pull/23592))
+
+### Additions
+
+- `api.HID.worker_support` ([#24538](https://github.com/mdn/browser-compat-data/pull/24538))
+- `api.HIDConnectionEvent.worker_support` ([#24538](https://github.com/mdn/browser-compat-data/pull/24538))
+- `api.HIDDevice.worker_support` ([#24538](https://github.com/mdn/browser-compat-data/pull/24538))
+- `api.HIDInputReportEvent.worker_support` ([#24538](https://github.com/mdn/browser-compat-data/pull/24538))
+- `api.IDBDatabase.transaction.mode_parameter_readwriteflush` ([#23592](https://github.com/mdn/browser-compat-data/pull/23592))
+- `api.USB.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBAlternateInterface.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBConfiguration.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBConnectionEvent.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBDevice.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBEndpoint.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBInterface.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBInTransferResult.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBIsochronousInTransferPacket.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBIsochronousInTransferResult.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBIsochronousOutTransferPacket.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBIsochronousOutTransferResult.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.USBOutTransferResult.worker_support` ([#24639](https://github.com/mdn/browser-compat-data/pull/24639))
+- `api.WorkerNavigator.hid` ([#24538](https://github.com/mdn/browser-compat-data/pull/24538))
+- `browsers.chrome_android.releases.133` ([#24691](https://github.com/mdn/browser-compat-data/pull/24691))
+- `browsers.chrome.releases.133` ([#24691](https://github.com/mdn/browser-compat-data/pull/24691))
+- `browsers.webview_android.releases.133` ([#24691](https://github.com/mdn/browser-compat-data/pull/24691))
+- `css.properties.border-collapse.collapse` ([#24156](https://github.com/mdn/browser-compat-data/pull/24156))
+- `css.properties.border-collapse.separate` ([#24156](https://github.com/mdn/browser-compat-data/pull/24156))
+- `css.properties.clip.auto` ([#24158](https://github.com/mdn/browser-compat-data/pull/24158))
+- `css.properties.column-width.auto` ([#24164](https://github.com/mdn/browser-compat-data/pull/24164))
+- `css.properties.object-position.applies_to_iframe_elements` ([#23631](https://github.com/mdn/browser-compat-data/pull/23631))
+- `css.properties.text-emphasis-position.auto` ([#24670](https://github.com/mdn/browser-compat-data/pull/24670))
+- `css.properties.white-space-collapse.preserve-spaces` ([#24154](https://github.com/mdn/browser-compat-data/pull/24154))
+- `http.headers.Cross-Origin-Opener-Policy.noopener-allow-popups` ([#24660](https://github.com/mdn/browser-compat-data/pull/24660))
+
+### Statistics
+
+- 10 contributors have changed 63 files with 1,373 additions and 310 deletions in 46 commits ([`v5.6.5...v5.6.6`](https://github.com/mdn/browser-compat-data/compare/v5.6.5...v5.6.6))
+- 16,572 total features
+- 1,109 total contributors
+- 4,939 total stargazers
+
+## [v5.6.5](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.5)
+
+October 8, 2024
+
+### Removals
+
+- `http.headers.Set-Cookie.SameSite.secure_context_required` ([#24275](https://github.com/mdn/browser-compat-data/pull/24275))
+- `svg.global_attributes.data` ([#24575](https://github.com/mdn/browser-compat-data/pull/24575))
+
+### Additions
+
+- `api.CSSNestedDeclarations` ([#24658](https://github.com/mdn/browser-compat-data/pull/24658))
+- `api.CSSNestedDeclarations.style` ([#24658](https://github.com/mdn/browser-compat-data/pull/24658))
+- `api.Document.scrollsnapchange_event` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `api.Document.scrollsnapchanging_event` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `api.Element.scrollsnapchange_event` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `api.Element.scrollsnapchanging_event` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `api.HTMLElement.autocorrect` ([#24249](https://github.com/mdn/browser-compat-data/pull/24249))
+- `api.SerialPort.connected` ([#24663](https://github.com/mdn/browser-compat-data/pull/24663))
+- `api.SnapEvent` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `api.SnapEvent.SnapEvent` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `api.SnapEvent.snapTargetBlock` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `api.SnapEvent.snapTargetInline` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `api.Window.scrollsnapchange_event` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `api.Window.scrollsnapchanging_event` ([#24495](https://github.com/mdn/browser-compat-data/pull/24495))
+- `browsers.chrome_android.releases.131` ([#24627](https://github.com/mdn/browser-compat-data/pull/24627))
+- `browsers.chrome_android.releases.132` ([#24627](https://github.com/mdn/browser-compat-data/pull/24627))
+- `browsers.chrome.releases.131` ([#24627](https://github.com/mdn/browser-compat-data/pull/24627))
+- `browsers.chrome.releases.132` ([#24627](https://github.com/mdn/browser-compat-data/pull/24627))
+- `browsers.edge.releases.132` ([#24591](https://github.com/mdn/browser-compat-data/pull/24591))
+- `browsers.firefox_android.releases.134` ([#24591](https://github.com/mdn/browser-compat-data/pull/24591))
+- `browsers.firefox.releases.134` ([#24591](https://github.com/mdn/browser-compat-data/pull/24591))
+- `browsers.webview_android.releases.131` ([#24627](https://github.com/mdn/browser-compat-data/pull/24627))
+- `browsers.webview_android.releases.132` ([#24627](https://github.com/mdn/browser-compat-data/pull/24627))
+- `css.properties.text-wrap-style.pretty` ([#24663](https://github.com/mdn/browser-compat-data/pull/24663))
+- `html.global_attributes.autocorrect` ([#24249](https://github.com/mdn/browser-compat-data/pull/24249))
+- `http.headers.Link.blocking` ([#24518](https://github.com/mdn/browser-compat-data/pull/24518))
+- `http.headers.Link.expect` ([#24518](https://github.com/mdn/browser-compat-data/pull/24518))
+- `http.headers.Link.fetchpriority` ([#24518](https://github.com/mdn/browser-compat-data/pull/24518))
+- `http.headers.Set-Cookie.SameSite.none_requires_secure` ([#24275](https://github.com/mdn/browser-compat-data/pull/24275))
+- `svg.global_attributes.data_attributes` ([#24575](https://github.com/mdn/browser-compat-data/pull/24575))
+- `webassembly.jsStringBuiltins` ([#24663](https://github.com/mdn/browser-compat-data/pull/24663))
+- `webextensions.api.declarativeNetRequest.RuleCondition.excludedResponseHeaders` ([#24253](https://github.com/mdn/browser-compat-data/pull/24253))
+- `webextensions.api.declarativeNetRequest.RuleCondition.excludedResponseHeaders.excludedValues` ([#24253](https://github.com/mdn/browser-compat-data/pull/24253))
+- `webextensions.api.declarativeNetRequest.RuleCondition.excludedResponseHeaders.header` ([#24253](https://github.com/mdn/browser-compat-data/pull/24253))
+- `webextensions.api.declarativeNetRequest.RuleCondition.excludedResponseHeaders.values` ([#24253](https://github.com/mdn/browser-compat-data/pull/24253))
+- `webextensions.api.declarativeNetRequest.RuleCondition.responseHeaders` ([#24253](https://github.com/mdn/browser-compat-data/pull/24253))
+- `webextensions.api.declarativeNetRequest.RuleCondition.responseHeaders.excludedValues` ([#24253](https://github.com/mdn/browser-compat-data/pull/24253))
+- `webextensions.api.declarativeNetRequest.RuleCondition.responseHeaders.header` ([#24253](https://github.com/mdn/browser-compat-data/pull/24253))
+- `webextensions.api.declarativeNetRequest.RuleCondition.responseHeaders.values` ([#24253](https://github.com/mdn/browser-compat-data/pull/24253))
+- `webextensions.api.storage.local.clear` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.local.get` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.local.get.empty_key` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.local.getBytesInUse` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.local.onChanged` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.local.remove` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.local.remove.empty_key` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.local.set` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.managed.clear` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.managed.get` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.managed.getBytesInUse` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.managed.onChanged` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.managed.remove` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.managed.set` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.clear` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.get` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.get.empty_key` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.getBytesInUse` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.onChanged` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.QUOTA_BYTES` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.remove` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.remove.empty_key` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.set` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.session.setAccessLevel` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.sync.clear` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.sync.get` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.sync.get.empty_key` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.sync.getBytesInUse` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.sync.onChanged` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.sync.remove` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.sync.remove.empty_key` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+- `webextensions.api.storage.sync.set` ([#24272](https://github.com/mdn/browser-compat-data/pull/24272))
+
+### Statistics
+
+- 21 contributors have changed 84 files with 2,212 additions and 445 deletions in 67 commits ([`v5.6.4...v5.6.5`](https://github.com/mdn/browser-compat-data/compare/v5.6.4...v5.6.5))
+- 16,547 total features
+- 1,109 total contributors
+- 4,931 total stargazers
+
+## [v5.6.4](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.4)
+
+September 27, 2024
+
+### Removals
+
+- `mathml.elements.mo.moveablelimits` ([#24506](https://github.com/mdn/browser-compat-data/pull/24506))
+
+### Additions
+
+- `mathml.elements.mo.movablelimits` ([#24506](https://github.com/mdn/browser-compat-data/pull/24506))
+- `webextensions.api.contentScriptGlobalScope` ([#22767](https://github.com/mdn/browser-compat-data/pull/22767))
+- `webextensions.api.contentScriptGlobalScope.cloneInto` ([#22767](https://github.com/mdn/browser-compat-data/pull/22767))
+- `webextensions.api.contentScriptGlobalScope.exportFunction` ([#22767](https://github.com/mdn/browser-compat-data/pull/22767))
+
+### Statistics
+
+- 6 contributors have changed 11 files with 257 additions and 106 deletions in 16 commits ([`v5.6.3...v5.6.4`](https://github.com/mdn/browser-compat-data/compare/v5.6.3...v5.6.4))
+- 16,487 total features
+- 1,104 total contributors
+- 4,916 total stargazers
+
+## [v5.6.3](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.3)
+
+September 24, 2024
+
+### Additions
+
+- `css.properties.ruby-overhang` ([#24436](https://github.com/mdn/browser-compat-data/pull/24436))
+- `css.properties.ruby-overhang.auto` ([#24436](https://github.com/mdn/browser-compat-data/pull/24436))
+- `css.properties.ruby-overhang.none` ([#24436](https://github.com/mdn/browser-compat-data/pull/24436))
+- `webextensions.manifest.theme.colors.tab_background_separator` ([#24487](https://github.com/mdn/browser-compat-data/pull/24487))
+- `webextensions.manifest.theme.colors.toolbar_field_separator` ([#24487](https://github.com/mdn/browser-compat-data/pull/24487))
+
+### Statistics
+
+- 6 contributors have changed 158 files with 1,492 additions and 95 deletions in 17 commits ([`v5.6.2...v5.6.3`](https://github.com/mdn/browser-compat-data/compare/v5.6.2...v5.6.3))
+- 16,484 total features
+- 1,104 total contributors
+- 4,910 total stargazers
+
+## [v5.6.2](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.2)
+
+September 20, 2024
+
+### Removals
+
+- `html.elements.area.tabindex` ([#24430](https://github.com/mdn/browser-compat-data/pull/24430))
+- `html.elements.object.tabindex` ([#24430](https://github.com/mdn/browser-compat-data/pull/24430))
+
+### Additions
+
+- `webextensions.api.declarativeNetRequest.RuleCondition.initiatorDomains` ([#24384](https://github.com/mdn/browser-compat-data/pull/24384))
+- `webextensions.api.tabs.onUpdated.changeInfo.openerTabId` ([#24069](https://github.com/mdn/browser-compat-data/pull/24069))
+
+### Statistics
+
+- 6 contributors have changed 11 files with 78 additions and 89 deletions in 10 commits ([`v5.6.1...v5.6.2`](https://github.com/mdn/browser-compat-data/compare/v5.6.1...v5.6.2))
+- 16,479 total features
+- 1,104 total contributors
+- 4,905 total stargazers
+
+## [v5.6.1](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.1)
+
+September 18, 2024
+
+### Removals
+
+- `browsers.safari_ios.releases.18.0` ([#24456](https://github.com/mdn/browser-compat-data/pull/24456))
+- `browsers.safari.releases.18.0` ([#24456](https://github.com/mdn/browser-compat-data/pull/24456))
+- `browsers.webview_ios.releases.18.0` ([#24456](https://github.com/mdn/browser-compat-data/pull/24456))
+
+### Additions
+
+- `browsers.safari_ios.releases.18.1` ([#24463](https://github.com/mdn/browser-compat-data/pull/24463))
+- `browsers.safari.releases.18.1` ([#24463](https://github.com/mdn/browser-compat-data/pull/24463))
+- `browsers.webview_ios.releases.18.1` ([#24463](https://github.com/mdn/browser-compat-data/pull/24463))
+
+### Statistics
+
+- 3 contributors have changed 10 files with 48 additions and 34 deletions in 4 commits ([`v5.6.0...v5.6.1`](https://github.com/mdn/browser-compat-data/compare/v5.6.0...v5.6.1))
+- 16,479 total features
+- 1,104 total contributors
+- 4,905 total stargazers
+
+## [v5.6.0](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.0)
+
+September 17, 2024
+
+### Notable changes
+
+#### WebView iOS
+
+BCD now tracks data for WebView on iOS, also known as WKWebView!
+
+### Removals
+
+- `api.ApplicationCache` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.abort` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.cached_event` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.checking_event` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.downloading_event` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.error_event` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.noupdate_event` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.obsolete_event` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.progress_event` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.status` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.swapCache` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.update` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.ApplicationCache.updateready_event` ([#24426](https://github.com/mdn/browser-compat-data/pull/24426))
+- `api.HTMLButtonElement.invokeaction` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.HTMLButtonElement.invoketarget` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.HTMLElement.invoke_event` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.InvokeEvent` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.InvokeEvent.action` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.InvokeEvent.InvokeEvent` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.InvokeEvent.invoker` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `css.properties.user-select.contain` ([#23575](https://github.com/mdn/browser-compat-data/pull/23575))
+- `html.global_attributes.invokeaction` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `html.global_attributes.invoketarget` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+
+### Additions
+
+- `api.CommandEvent` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.CommandEvent.command` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.CommandEvent.CommandEvent` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.CommandEvent.source` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.Document.caretPositionFromPoint.options_parameter` ([#24405](https://github.com/mdn/browser-compat-data/pull/24405))
+- `api.HTMLButtonElement.command` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.HTMLButtonElement.commandfor` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.HTMLElement.command_event` ([#24362](https://github.com/mdn/browser-compat-data/pull/24362))
+- `api.PointerEvent.PointerEvent.options_altitudeAngle_parameter` ([#24393](https://github.com/mdn/browser-compat-data/pull/24393))
+- `api.PointerEvent.PointerEvent.options_azimuthAngle_parameter` ([#24393](https://github.com/mdn/browser-compat-data/pull/24393))
+- `api.Scheduler.yield` ([#24439](https://github.com/mdn/browser-compat-data/pull/24439))
+- `browsers.chrome_android.releases.130` ([#24423](https://github.com/mdn/browser-compat-data/pull/24423))
+- `browsers.chrome.releases.130` ([#24423](https://github.com/mdn/browser-compat-data/pull/24423))
+- `browsers.opera_android.releases.84` ([#24422](https://github.com/mdn/browser-compat-data/pull/24422))
+- `browsers.opera.releases.114` ([#24421](https://github.com/mdn/browser-compat-data/pull/24421))
+- `browsers.opera.releases.115` ([#24421](https://github.com/mdn/browser-compat-data/pull/24421))
+- `browsers.safari_ios.releases.18.0` ([#24452](https://github.com/mdn/browser-compat-data/pull/24452))
+- `browsers.safari.releases.18.0` ([#24452](https://github.com/mdn/browser-compat-data/pull/24452))
+- `browsers.webview_android.releases.130` ([#24423](https://github.com/mdn/browser-compat-data/pull/24423))
+- `browsers.webview_ios` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.1` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.10` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.10.3` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.11` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.11.3` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.12` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.12.2` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.13` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.13.4` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.14` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.14.5` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.15` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.15.1` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.15.2` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.15.3` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.15.4` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.15.5` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.15.6` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.16` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.16.1` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.16.2` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.16.3` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.16.4` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.16.5` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.16.6` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.17` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.17.1` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.17.2` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.17.3` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.17.4` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.17.5` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.17.6` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.18` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.18.0` ([#24452](https://github.com/mdn/browser-compat-data/pull/24452))
+- `browsers.webview_ios.releases.2` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.3` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.3.2` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.4` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.4.2` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.5` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.6` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.7` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.8` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.9` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `browsers.webview_ios.releases.9.3` ([#23747](https://github.com/mdn/browser-compat-data/pull/23747))
+- `css.at-rules.custom-media` ([#24338](https://github.com/mdn/browser-compat-data/pull/24338))
+- `css.properties.background-clip.border-area` ([#24333](https://github.com/mdn/browser-compat-data/pull/24333))
+- `css.properties.caption-side.bottom` ([#24157](https://github.com/mdn/browser-compat-data/pull/24157))
+- `css.properties.caption-side.top` ([#24157](https://github.com/mdn/browser-compat-data/pull/24157))
+- `css.properties.color-scheme.dark` ([#24163](https://github.com/mdn/browser-compat-data/pull/24163))
+- `css.properties.color-scheme.light` ([#24163](https://github.com/mdn/browser-compat-data/pull/24163))
+- `css.properties.color-scheme.normal` ([#24163](https://github.com/mdn/browser-compat-data/pull/24163))
+- `css.properties.display.table-caption` ([#24385](https://github.com/mdn/browser-compat-data/pull/24385))
+
+### Statistics
+
+- 12 contributors have changed 2,507 files with 36,150 additions and 16,632 deletions in 68 commits ([`v5.5.51...v5.6.0`](https://github.com/mdn/browser-compat-data/compare/v5.5.51...v5.6.0))
+- 16,479 total features
+- 1,104 total contributors
+- 4,904 total stargazers
+
+## [v5.5.51](https://github.com/mdn/browser-compat-data/releases/tag/v5.5.51)
+
+September 6, 2024
+
+### Removals
+
+- `api.IDBFactory.open.options_parameter` ([#24360](https://github.com/mdn/browser-compat-data/pull/24360))
+
+### Additions
+
+- `api.FileSystemFileHandle.createSyncAccessHandle.mode` ([#24038](https://github.com/mdn/browser-compat-data/pull/24038))
+- `api.FileSystemFileHandle.createWritable.mode` ([#24038](https://github.com/mdn/browser-compat-data/pull/24038))
+- `browsers.edge.releases.131` ([#24341](https://github.com/mdn/browser-compat-data/pull/24341))
+- `browsers.samsunginternet_android.releases.26.0` ([#24255](https://github.com/mdn/browser-compat-data/pull/24255))
+- `browsers.samsunginternet_android.releases.27.0` ([#24255](https://github.com/mdn/browser-compat-data/pull/24255))
+- `http.headers.Refresh` ([#24273](https://github.com/mdn/browser-compat-data/pull/24273))
+
+### Statistics
+
+- 10 contributors have changed 35 files with 211 additions and 106 deletions in 26 commits ([`v5.5.50...v5.5.51`](https://github.com/mdn/browser-compat-data/compare/v5.5.50...v5.5.51))
+- 16,483 total features
+- 1,104 total contributors
+- 4,892 total stargazers
+
+## [v5.5.50](https://github.com/mdn/browser-compat-data/releases/tag/v5.5.50)
+
+September 3, 2024
+
+### Additions
+
+- `api.Notification.requestPermission_static.returns_promise` ([#23911](https://github.com/mdn/browser-compat-data/pull/23911))
+- `browsers.firefox_android.releases.133` ([#24282](https://github.com/mdn/browser-compat-data/pull/24282))
+- `browsers.firefox.releases.133` ([#24282](https://github.com/mdn/browser-compat-data/pull/24282))
+- `webdriver.commands.CreateVirtualPressureSource` ([#24211](https://github.com/mdn/browser-compat-data/pull/24211))
+- `webdriver.commands.DeleteVirtualPressureSource` ([#24211](https://github.com/mdn/browser-compat-data/pull/24211))
+- `webdriver.commands.UpdateVirtualPressureSource` ([#24211](https://github.com/mdn/browser-compat-data/pull/24211))
+
+### Statistics
+
+- 7 contributors have changed 41 files with 387 additions and 134 deletions in 29 commits ([`v5.5.49...v5.5.50`](https://github.com/mdn/browser-compat-data/compare/v5.5.49...v5.5.50))
+- 16,481 total features
+- 1,103 total contributors
+- 4,889 total stargazers
+
+## [v5.5.49](https://github.com/mdn/browser-compat-data/releases/tag/v5.5.49)
+
+August 27, 2024
+
+### Removals
+
+- `css.types.color.transparent` ([#24209](https://github.com/mdn/browser-compat-data/pull/24209))
+
+### Additions
+
+- `api.WebSocket.WebSocket.url_parameter_http_https_relative` ([#24218](https://github.com/mdn/browser-compat-data/pull/24218))
+- `css.properties.interpolate-size` ([#24210](https://github.com/mdn/browser-compat-data/pull/24210))
+- `css.properties.interpolate-size.allow-keywords` ([#24210](https://github.com/mdn/browser-compat-data/pull/24210))
+- `css.properties.interpolate-size.numeric-only` ([#24210](https://github.com/mdn/browser-compat-data/pull/24210))
+- `css.types.calc-size` ([#24210](https://github.com/mdn/browser-compat-data/pull/24210))
+- `css.types.color.named-color.transparent` ([#24209](https://github.com/mdn/browser-compat-data/pull/24209))
+
+### Statistics
+
+- 6 contributors have changed 22 files with 491 additions and 267 deletions in 14 commits ([`v5.5.48...v5.5.49`](https://github.com/mdn/browser-compat-data/compare/v5.5.48...v5.5.49))
+- 16,477 total features
+- 1,103 total contributors
+- 4,882 total stargazers
+
+## [v5.5.48](https://github.com/mdn/browser-compat-data/releases/tag/v5.5.48)
+
+August 24, 2024
+
+### Removals
+
+- `css.properties.-webkit-initial-letter` ([#24201](https://github.com/mdn/browser-compat-data/pull/24201))
+- `javascript.builtins.Intl.RelativeTimeFormat.resolvedOptions.numberingSystem` ([#24181](https://github.com/mdn/browser-compat-data/pull/24181))
+- `javascript.builtins.String.toLocaleLowerCase.locale` ([#24181](https://github.com/mdn/browser-compat-data/pull/24181))
+- `javascript.builtins.String.toLocaleUpperCase.locale` ([#24181](https://github.com/mdn/browser-compat-data/pull/24181))
+
+### Additions
+
+- `javascript.builtins.String.toLocaleLowerCase.locales_parameter` ([#24181](https://github.com/mdn/browser-compat-data/pull/24181))
+- `javascript.builtins.String.toLocaleUpperCase.locales_parameter` ([#24181](https://github.com/mdn/browser-compat-data/pull/24181))
+
+### Statistics
+
+- 6 contributors have changed 13 files with 49 additions and 400 deletions in 14 commits ([`v5.5.47...v5.5.48`](https://github.com/mdn/browser-compat-data/compare/v5.5.47...v5.5.48))
+- 16,472 total features
+- 1,103 total contributors
+- 4,879 total stargazers
+
+## [v5.5.47](https://github.com/mdn/browser-compat-data/releases/tag/v5.5.47)
+
+August 20, 2024
+
+### Removals
+
+- `css.properties.cursor.inherit` ([#24010](https://github.com/mdn/browser-compat-data/pull/24010))
+- `css.properties.inset-area` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.block-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.block-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.bottom` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.center` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.inline-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.inline-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.left` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.none` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.right` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.self-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.self-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-all` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-block-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-block-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-bottom` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-inline-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-inline-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-top` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-x-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-x-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-y-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.span-y-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.top` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.x-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.x-self-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.x-self-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.x-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.y-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.y-self-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.y-self-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.inset-area.y-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-try-fallbacks.inset-area` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `html.manifest.categories` ([#23774](https://github.com/mdn/browser-compat-data/pull/23774))
+- `html.manifest.screenshots` ([#23774](https://github.com/mdn/browser-compat-data/pull/23774))
+- `javascript.builtins.Temporal.Instant.epochMicroseconds` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.Instant.epochSeconds` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.Instant.fromEpochMicroseconds` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.Instant.fromEpochSeconds` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.Instant.toZonedDateTime` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.Now.plainDate` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.Now.plainDateTime` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.Now.timeZone` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.Now.zonedDateTime` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainDate.calendar` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainDateTime.calendar` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainDateTime.toPlainMonthDay` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainDateTime.toPlainYearMonth` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainDateTime.withPlainDate` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainMonthDay.calendar` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainTime.calendar` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainTime.toPlainDateTime` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainTime.toZonedDateTime` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainYearMonth.calendar` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.TimeZone.getNextTransition` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.TimeZone.getPreviousTransition` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.calendar` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.epochMicroseconds` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.epochSeconds` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.timeZone` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.toPlainMonthDay` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.toPlainYearMonth` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.withPlainDate` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+
+### Additions
+
+- `api.CSSFontFeatureValuesMap` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.@@iterator` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.clear` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.delete` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.entries` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.forEach` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.get` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.has` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.keys` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.set` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.size` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSFontFeatureValuesMap.values` ([#24166](https://github.com/mdn/browser-compat-data/pull/24166))
+- `api.CSSPageDescriptors.page-orientation` ([#24170](https://github.com/mdn/browser-compat-data/pull/24170))
+- `api.CSSPageDescriptors.pageOrientation` ([#24170](https://github.com/mdn/browser-compat-data/pull/24170))
+- `browsers.chrome_android.releases.129` ([#24139](https://github.com/mdn/browser-compat-data/pull/24139))
+- `browsers.chrome.releases.129` ([#24139](https://github.com/mdn/browser-compat-data/pull/24139))
+- `browsers.nodejs.releases.18.18.0` ([#23973](https://github.com/mdn/browser-compat-data/pull/23973))
+- `browsers.nodejs.releases.18.19.0` ([#23973](https://github.com/mdn/browser-compat-data/pull/23973))
+- `browsers.nodejs.releases.18.20.0` ([#23973](https://github.com/mdn/browser-compat-data/pull/23973))
+- `browsers.webview_android.releases.129` ([#24139](https://github.com/mdn/browser-compat-data/pull/24139))
+- `css.properties.position-area` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.block-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.block-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.bottom` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.center` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.inline-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.inline-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.left` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.none` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.right` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.self-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.self-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-all` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-block-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-block-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-bottom` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-inline-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-inline-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-top` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-x-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-x-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-y-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.span-y-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.top` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.x-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.x-self-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.x-self-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.x-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.y-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.y-self-end` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.y-self-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-area.y-start` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.position-try-fallbacks.position-area` ([#23993](https://github.com/mdn/browser-compat-data/pull/23993))
+- `css.properties.reading-flow` ([#23927](https://github.com/mdn/browser-compat-data/pull/23927))
+- `html.global_attributes.writingsuggestions` ([#24121](https://github.com/mdn/browser-compat-data/pull/24121))
+- `html.manifest.display_override.window-controls-overlay` ([#23774](https://github.com/mdn/browser-compat-data/pull/23774))
+- `javascript.builtins.Temporal.Now.plainTimeISO` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.Now.timeZoneID` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainDate.calendarId` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainDate.yearOfWeek` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainDateTime.calendarId` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainDateTime.yearOfWeek` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainMonthDay.calendarId` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.PlainYearMonth.calendarId` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.calendarId` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.getTimeZoneTransition` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.timeZoneId` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+- `javascript.builtins.Temporal.ZonedDateTime.yearOfWeek` ([#24005](https://github.com/mdn/browser-compat-data/pull/24005))
+
+### Statistics
+
+- 13 contributors have changed 356 files with 4,835 additions and 1,850 deletions in 63 commits ([`v5.5.46...v5.5.47`](https://github.com/mdn/browser-compat-data/compare/v5.5.46...v5.5.47))
+- 16,474 total features
+- 1,103 total contributors
+- 4,878 total stargazers
+
 ## [v5.5.46](https://github.com/mdn/browser-compat-data/releases/tag/v5.5.46)
 
 August 13, 2024
diff --git a/api/ANGLE_instanced_arrays.json b/api/ANGLE_instanced_arrays.json
index ef7d2eb69863a6..2a234db4443f70 100644
--- a/api/ANGLE_instanced_arrays.json
+++ b/api/ANGLE_instanced_arrays.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays",
         "spec_url": "https://registry.khronos.org/webgl/extensions/ANGLE_instanced_arrays/",
+        "tags": [
+          "web-features:angle-instanced-arrays"
+        ],
         "support": {
           "chrome": [
             {
@@ -36,7 +39,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,6 +52,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays/drawArraysInstancedANGLE",
           "spec_url": "https://registry.khronos.org/webgl/extensions/ANGLE_instanced_arrays/",
+          "tags": [
+            "web-features:angle-instanced-arrays"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,6 +92,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays/drawElementsInstancedANGLE",
           "spec_url": "https://registry.khronos.org/webgl/extensions/ANGLE_instanced_arrays/",
+          "tags": [
+            "web-features:angle-instanced-arrays"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -107,7 +118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays/vertexAttribDivisorANGLE",
           "spec_url": "https://registry.khronos.org/webgl/extensions/ANGLE_instanced_arrays/",
+          "tags": [
+            "web-features:angle-instanced-arrays"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -143,7 +158,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AbortController.json b/api/AbortController.json
index 60317ef31a5c13..ba3cab3b626880 100644
--- a/api/AbortController.json
+++ b/api/AbortController.json
@@ -26,7 +26,7 @@
             "version_added": false
           },
           "nodejs": {
-            "version_added": "15.0.0"
+            "version_added": "14.17.0"
           },
           "oculus": "mirror",
           "opera": "mirror",
@@ -38,12 +38,13 @@
             {
               "version_added": "11.1",
               "partial_implementation": true,
-              "notes": "Even though <code>window.AbortController</code> is defined, it doesn't really abort <code>fetch</code> requests. See <a href='https://webkit.org/b/174980'>bug 174980</a>."
+              "notes": "Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See [bug 174980](https://webkit.org/b/174980)."
             }
           ],
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -53,7 +54,7 @@
       },
       "AbortController": {
         "__compat": {
-          "description": "<code>AbortController()</code> constructor",
+          "description": "`AbortController()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortController/AbortController",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-abortcontroller-abortcontroller①",
           "tags": [
@@ -78,7 +79,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": "15.0.0"
+              "version_added": "14.17.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -90,12 +91,13 @@
               {
                 "version_added": "11.1",
                 "partial_implementation": true,
-                "notes": "Even though <code>window.AbortController</code> is defined, it doesn't really abort <code>fetch</code> requests. See <a href='https://webkit.org/b/174980'>bug 174980</a>."
+                "notes": "Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See [bug 174980](https://webkit.org/b/174980)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -129,9 +131,27 @@
             "ie": {
               "version_added": false
             },
-            "nodejs": {
-              "version_added": "15.0.0"
-            },
+            "nodejs": [
+              {
+                "version_added": "17.2.0"
+              },
+              {
+                "version_added": "17.0.0",
+                "version_removed": "17.2.0",
+                "partial_implementation": true,
+                "notes": "The optional `reason` argument is not supported."
+              },
+              {
+                "version_added": "16.14.0",
+                "version_removed": "17.0.0"
+              },
+              {
+                "version_added": "14.17.0",
+                "version_removed": "16.14.0",
+                "partial_implementation": true,
+                "notes": "The optional `reason` argument is not supported."
+              }
+            ],
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -142,18 +162,69 @@
               {
                 "version_added": "11.1",
                 "partial_implementation": true,
-                "notes": "Even though <code>window.AbortController</code> is defined, it doesn't really abort <code>fetch</code> requests. See <a href='https://webkit.org/b/174980'>bug 174980</a>."
+                "notes": "Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See [bug 174980](https://webkit.org/b/174980)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "reason_parameter": {
+          "__compat": {
+            "description": "`reason` parameter",
+            "spec_url": "https://dom.spec.whatwg.org/#abortsignal-abort-reason",
+            "tags": [
+              "web-features:aborting"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "98"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": "1.16"
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "97"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": [
+                {
+                  "version_added": "17.2.0"
+                },
+                {
+                  "version_added": "16.14.0",
+                  "version_removed": "17.0.0"
+                }
+              ],
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "15.4"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "signal": {
@@ -182,7 +253,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": "15.0.0"
+              "version_added": "14.17.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -194,12 +265,13 @@
               {
                 "version_added": "11.1",
                 "partial_implementation": true,
-                "notes": "Even though <code>window.AbortController</code> is defined, it doesn't really abort <code>fetch</code> requests. See <a href='https://webkit.org/b/174980'>bug 174980</a>."
+                "notes": "Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See [bug 174980](https://webkit.org/b/174980)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AbortPaymentEvent.json b/api/AbortPaymentEvent.json
index 4928e9c920f75b..2b393a2c9a8a59 100644
--- a/api/AbortPaymentEvent.json
+++ b/api/AbortPaymentEvent.json
@@ -25,7 +25,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -35,7 +36,7 @@
       },
       "AbortPaymentEvent": {
         "__compat": {
-          "description": "<code>AbortPaymentEvent()</code> constructor",
+          "description": "`AbortPaymentEvent()` constructor",
           "support": {
             "chrome": {
               "version_added": "70"
@@ -59,7 +60,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -93,7 +95,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/AbortSignal.json b/api/AbortSignal.json
index eb3c1cbd8ad702..3ec54d78d8ebcd 100644
--- a/api/AbortSignal.json
+++ b/api/AbortSignal.json
@@ -26,7 +26,7 @@
             "version_added": false
           },
           "nodejs": {
-            "version_added": "15.0.0"
+            "version_added": "14.17.0"
           },
           "oculus": "mirror",
           "opera": "mirror",
@@ -36,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,7 +47,7 @@
       },
       "abort_event": {
         "__compat": {
-          "description": "<code>abort</code> event",
+          "description": "`abort` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortSignal/abort_event",
           "spec_url": [
             "https://dom.spec.whatwg.org/#eventdef-abortsignal-abort",
@@ -74,7 +75,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": "15.0.0"
+              "version_added": "14.17.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -84,7 +85,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -95,9 +97,12 @@
       },
       "abort_static": {
         "__compat": {
-          "description": "<code>abort()</code> static method",
+          "description": "`abort()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortSignal/abort_static",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-abortsignal-abort①",
+          "tags": [
+            "web-features:aborting"
+          ],
           "support": {
             "chrome": {
               "version_added": "93"
@@ -114,9 +119,15 @@
             "ie": {
               "version_added": false
             },
-            "nodejs": {
-              "version_added": "15.12.0"
-            },
+            "nodejs": [
+              {
+                "version_added": "15.12.0"
+              },
+              {
+                "version_added": "14.17.0",
+                "version_removed": "15.0.0"
+              }
+            ],
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -125,7 +136,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,8 +147,11 @@
         },
         "reason_parameter": {
           "__compat": {
-            "description": "<code>reason</code> parameter",
+            "description": "`reason` parameter",
             "spec_url": "https://dom.spec.whatwg.org/#abortsignal-abort-reason",
+            "tags": [
+              "web-features:aborting"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -170,7 +185,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -206,7 +222,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": "15.0.0"
+              "version_added": "14.17.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -216,7 +232,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -227,7 +244,7 @@
       },
       "any_static": {
         "__compat": {
-          "description": "<code>any()</code> static method",
+          "description": "`any()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortSignal/any_static",
           "spec_url": "https://dom.spec.whatwg.org/#dom-abortsignal-any",
           "tags": [
@@ -266,7 +283,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -279,6 +297,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortSignal/reason",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-abortsignal-reason①",
+          "tags": [
+            "web-features:aborting"
+          ],
           "support": {
             "chrome": {
               "version_added": "98"
@@ -312,7 +333,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -325,6 +347,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortSignal/throwIfAborted",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-abortsignal-throwifaborted①",
+          "tags": [
+            "web-features:aborting"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -358,7 +383,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -369,13 +395,24 @@
       },
       "timeout_static": {
         "__compat": {
-          "description": "<code>timeout()</code> static method",
+          "description": "`timeout()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbortSignal/timeout_static",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-abortsignal-timeout①",
+          "tags": [
+            "web-features:aborting"
+          ],
           "support": {
-            "chrome": {
-              "version_added": "103"
-            },
+            "chrome": [
+              {
+                "version_added": "124"
+              },
+              {
+                "version_added": "103",
+                "version_removed": "124",
+                "partial_implementation": true,
+                "notes": "Always aborts with an `AbortError` on timeout, not a `TimeoutError`."
+              }
+            ],
             "chrome_android": "mirror",
             "deno": {
               "version_added": "1.20"
@@ -405,7 +442,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AbsoluteOrientationSensor.json b/api/AbsoluteOrientationSensor.json
index a40b8253fe3813..f39fba2b7b8bf8 100644
--- a/api/AbsoluteOrientationSensor.json
+++ b/api/AbsoluteOrientationSensor.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "AbsoluteOrientationSensor": {
         "__compat": {
-          "description": "<code>AbsoluteOrientationSensor()</code> constructor",
+          "description": "`AbsoluteOrientationSensor()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbsoluteOrientationSensor/AbsoluteOrientationSensor",
           "spec_url": "https://w3c.github.io/orientation-sensor/#dom-absoluteorientationsensor-absoluteorientationsensor",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AbstractRange.json b/api/AbstractRange.json
index 59274043c70098..c88d05a4e37f86 100644
--- a/api/AbstractRange.json
+++ b/api/AbstractRange.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbstractRange",
         "spec_url": "https://dom.spec.whatwg.org/#interface-abstractrange",
+        "tags": [
+          "web-features:selection-api"
+        ],
         "support": {
           "chrome": {
             "version_added": "90"
@@ -33,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbstractRange/collapsed",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-collapsed①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -74,7 +81,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbstractRange/endContainer",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-endcontainer①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -116,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -129,6 +141,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbstractRange/endOffset",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-endoffset①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -158,7 +173,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +187,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbstractRange/startContainer",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-startcontainer①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -200,7 +219,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -213,6 +233,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AbstractRange/startOffset",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-startoffset①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -242,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Accelerometer.json b/api/Accelerometer.json
index 59dc9e1ab96c43..e7d4d5ff8e27d3 100644
--- a/api/Accelerometer.json
+++ b/api/Accelerometer.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,7 +39,7 @@
       },
       "Accelerometer": {
         "__compat": {
-          "description": "<code>Accelerometer()</code> constructor",
+          "description": "`Accelerometer()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Accelerometer/Accelerometer",
           "spec_url": "https://w3c.github.io/accelerometer/#dom-accelerometer-accelerometer",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -176,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/AmbientLightSensor.json b/api/AmbientLightSensor.json
index c1cee25a5b4fb4..f016e90e76f505 100644
--- a/api/AmbientLightSensor.json
+++ b/api/AmbientLightSensor.json
@@ -32,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -42,7 +43,7 @@
       },
       "AmbientLightSensor": {
         "__compat": {
-          "description": "<code>AmbientLightSensor()</code> constructor",
+          "description": "`AmbientLightSensor()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AmbientLightSensor/AmbientLightSensor",
           "spec_url": "https://w3c.github.io/ambient-light/#dom-ambientlightsensor-ambientlightsensor",
           "support": {
@@ -73,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -115,7 +117,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/AnalyserNode.json b/api/AnalyserNode.json
index d7734cdcda59d5..ae23295475b071 100644
--- a/api/AnalyserNode.json
+++ b/api/AnalyserNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "AnalyserNode": {
         "__compat": {
-          "description": "<code>AnalyserNode()</code> constructor",
+          "description": "`AnalyserNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AnalyserNode/AnalyserNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-analysernode-analysernode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,7 +154,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -192,7 +196,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,7 +238,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +280,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -313,7 +320,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -354,7 +362,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -395,7 +404,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -436,7 +446,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Animation.json b/api/Animation.json
index 45d85bb5364fec..44d3dd2b86a103 100644
--- a/api/Animation.json
+++ b/api/Animation.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "Animation": {
         "__compat": {
-          "description": "<code>Animation()</code> constructor",
+          "description": "`Animation()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Animation/Animation",
           "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-animation-animation",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +116,7 @@
       },
       "cancel_event": {
         "__compat": {
-          "description": "<code>cancel</code> event",
+          "description": "`cancel` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Animation/cancel_event",
           "spec_url": [
             "https://drafts.csswg.org/web-animations-1/#dom-animation-oncancel",
@@ -143,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,7 +184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -217,7 +222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +260,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,7 +298,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -302,7 +310,7 @@
       },
       "finish_event": {
         "__compat": {
-          "description": "<code>finish</code> event",
+          "description": "`finish` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Animation/finish_event",
           "spec_url": [
             "https://drafts.csswg.org/web-animations-1/#dom-animation-onfinish",
@@ -332,7 +340,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -369,7 +378,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -406,7 +416,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -443,7 +454,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -467,7 +479,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "59",
-              "notes": "Before version 59, the pending status was reported by a <code><strong>\"pending\"</strong></code> value returned from <a href='https://developer.mozilla.org/docs/Web/API/Animation/playState'><code>Animation.playState</code></a>."
+              "notes": "Before version 59, the pending status was reported by a `\"pending\"` value returned from [`Animation.playState`](https://developer.mozilla.org/docs/Web/API/Animation/playState)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -481,7 +493,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -518,7 +531,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -555,7 +569,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -592,7 +607,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -611,7 +627,7 @@
           "support": {
             "chrome": {
               "version_added": "75",
-              "notes": "Before Chrome 50/Opera 37, this property returned <code>idle</code> for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows <code>paused</code>."
+              "notes": "Before Chrome 50/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows `paused`."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -619,7 +635,7 @@
             },
             "firefox": {
               "version_added": "48",
-              "notes": "Before Firefox 59, this property returned <code>pending</code> for Animations with incomplete asynchronous operations but as of Firefox 59 this is indicated by the separate <a href='https://developer.mozilla.org/docs/Web/API/Animation/pending'><code>Animation.pending</code></a> property. This reflects recent changes to the specification."
+              "notes": "Before Firefox 59, this property returned `pending` for Animations with incomplete asynchronous operations but as of Firefox 59 this is indicated by the separate [`Animation.pending`](https://developer.mozilla.org/docs/Web/API/Animation/pending) property. This reflects recent changes to the specification."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -628,18 +644,19 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "62",
-              "notes": "Before Chrome 50/Opera 37, this property returned <code>idle</code> for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows <code>paused</code>."
+              "notes": "Before Chrome 50/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows `paused`."
             },
             "opera_android": {
               "version_added": "54",
-              "notes": "Before Chrome 50/Opera 37, this property returned <code>idle</code> for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows <code>paused</code>."
+              "notes": "Before Chrome 50/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows `paused`."
             },
             "safari": {
               "version_added": "13.1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -676,7 +693,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -687,7 +705,7 @@
       },
       "remove_event": {
         "__compat": {
-          "description": "<code>remove</code> event",
+          "description": "`remove` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Animation/remove_event",
           "spec_url": [
             "https://drafts.csswg.org/web-animations-1/#dom-animation-onremove",
@@ -717,7 +735,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -730,6 +749,9 @@
         "__compat": {
           "description": "Browsers automatically remove indefinite filling animations",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Web_Animations_API/Using_the_Web_Animations_API#automatically_removing_filling_animations",
+          "tags": [
+            "web-features:web-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -751,7 +773,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -788,7 +811,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -825,7 +849,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -862,7 +887,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -901,7 +927,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -938,7 +965,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AnimationEffect.json b/api/AnimationEffect.json
index 3dcf07c6cdce06..54178519d7140c 100644
--- a/api/AnimationEffect.json
+++ b/api/AnimationEffect.json
@@ -35,7 +35,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -145,7 +148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AnimationEvent.json b/api/AnimationEvent.json
index 8b42a71f31edc4..765e180f59f0e5 100644
--- a/api/AnimationEvent.json
+++ b/api/AnimationEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/AnimationEvent",
         "spec_url": "https://drafts.csswg.org/css-animations/#interface-animationevent",
+        "tags": [
+          "web-features:animations-css"
+        ],
         "support": {
           "chrome": [
             {
@@ -85,7 +88,8 @@
               "version_added": "≤37",
               "version_removed": "70"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -95,9 +99,12 @@
       },
       "AnimationEvent": {
         "__compat": {
-          "description": "<code>AnimationEvent()</code> constructor",
+          "description": "`AnimationEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AnimationEvent/AnimationEvent",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-animationevent-animationevent",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -127,7 +134,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,6 +148,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AnimationEvent/animationName",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-animationevent-animationname",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -163,7 +174,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,6 +188,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AnimationEvent/elapsedTime",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-animationevent-elapsedtime",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -199,7 +214,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,6 +228,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AnimationEvent/pseudoElement",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-animationevent-pseudoelement",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -233,7 +252,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AnimationPlaybackEvent.json b/api/AnimationPlaybackEvent.json
index 75ee4f4c0fcab6..dddadeb850b1a2 100644
--- a/api/AnimationPlaybackEvent.json
+++ b/api/AnimationPlaybackEvent.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "AnimationPlaybackEvent": {
         "__compat": {
-          "description": "<code>AnimationPlaybackEvent()</code> constructor",
+          "description": "`AnimationPlaybackEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AnimationPlaybackEvent/AnimationPlaybackEvent",
           "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-animationplaybackevent-animationplaybackevent",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AnimationTimeline.json b/api/AnimationTimeline.json
index 41269ea5ce3b78..4e3019861533ed 100644
--- a/api/AnimationTimeline.json
+++ b/api/AnimationTimeline.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -76,6 +78,9 @@
       "duration": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/web-animations-2/#dom-animationtimeline-duration",
+          "tags": [
+            "web-features:web-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "115"
@@ -97,7 +102,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ApplicationCache.json b/api/ApplicationCache.json
deleted file mode 100644
index f60b527ab37095..00000000000000
--- a/api/ApplicationCache.json
+++ /dev/null
@@ -1,604 +0,0 @@
-{
-  "api": {
-    "ApplicationCache": {
-      "__compat": {
-        "support": {
-          "chrome": {
-            "version_added": "5",
-            "version_removed": "85"
-          },
-          "chrome_android": "mirror",
-          "edge": {
-            "version_added": "12",
-            "version_removed": "86"
-          },
-          "firefox": {
-            "version_added": "3",
-            "version_removed": "84"
-          },
-          "firefox_android": "mirror",
-          "ie": {
-            "version_added": "10"
-          },
-          "oculus": "mirror",
-          "opera": {
-            "version_added": "≤12.1",
-            "version_removed": "71"
-          },
-          "opera_android": {
-            "version_added": "≤12.1",
-            "version_removed": "60"
-          },
-          "safari": {
-            "version_added": "4",
-            "version_removed": "16"
-          },
-          "safari_ios": {
-            "version_added": "3",
-            "version_removed": "16"
-          },
-          "samsunginternet_android": "mirror",
-          "webview_android": {
-            "version_added": "≤37",
-            "version_removed": "85"
-          }
-        },
-        "status": {
-          "experimental": false,
-          "standard_track": false,
-          "deprecated": true
-        }
-      },
-      "abort": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "18",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "6",
-              "version_removed": "16"
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "cached_event": {
-        "__compat": {
-          "description": "<code>cached</code> event",
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "checking_event": {
-        "__compat": {
-          "description": "<code>checking</code> event",
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "downloading_event": {
-        "__compat": {
-          "description": "<code>downloading</code> event",
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "error_event": {
-        "__compat": {
-          "description": "<code>error</code> event",
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "noupdate_event": {
-        "__compat": {
-          "description": "<code>noupdate</code> event",
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "obsolete_event": {
-        "__compat": {
-          "description": "<code>obsolete</code> event",
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3.5",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "progress_event": {
-        "__compat": {
-          "description": "<code>progress</code> event",
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "status": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": {
-              "version_added": "≤12.1",
-              "version_removed": "71"
-            },
-            "opera_android": {
-              "version_added": "≤12.1",
-              "version_removed": "60"
-            },
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "swapCache": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": {
-              "version_added": "≤12.1",
-              "version_removed": "71"
-            },
-            "opera_android": {
-              "version_added": "≤12.1",
-              "version_removed": "60"
-            },
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "update": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": {
-              "version_added": "≤12.1",
-              "version_removed": "71"
-            },
-            "opera_android": {
-              "version_added": "≤12.1",
-              "version_removed": "60"
-            },
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "updateready_event": {
-        "__compat": {
-          "description": "<code>updateready</code> event",
-          "support": {
-            "chrome": {
-              "version_added": "5",
-              "version_removed": "85"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12",
-              "version_removed": "86"
-            },
-            "firefox": {
-              "version_added": "3",
-              "version_removed": "84"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": "10"
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "4",
-              "version_removed": "16"
-            },
-            "safari_ios": {
-              "version_added": "3",
-              "version_removed": "16"
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "≤37",
-              "version_removed": "85"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/api/Attr.json b/api/Attr.json
index 645f163308667f..55e8ae72d40fec 100644
--- a/api/Attr.json
+++ b/api/Attr.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr",
         "spec_url": "https://dom.spec.whatwg.org/#interface-attr",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr/localName",
           "spec_url": "https://dom.spec.whatwg.org/#dom-attr-localname",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr/name",
           "spec_url": "https://dom.spec.whatwg.org/#dom-attr-name",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr/namespaceURI",
           "spec_url": "https://dom.spec.whatwg.org/#dom-attr-namespaceuri",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -150,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +179,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr/ownerElement",
           "spec_url": "https://dom.spec.whatwg.org/#dom-attr-ownerelement",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -190,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -203,6 +223,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr/prefix",
           "spec_url": "https://dom.spec.whatwg.org/#dom-attr-prefix",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -230,7 +253,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -270,7 +294,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -283,6 +308,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Attr/value",
           "spec_url": "https://dom.spec.whatwg.org/#dom-attr-value",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -310,7 +338,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioBuffer.json b/api/AudioBuffer.json
index 77691dc5343e1f..b384227f232fb5 100644
--- a/api/AudioBuffer.json
+++ b/api/AudioBuffer.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "AudioBuffer": {
         "__compat": {
-          "description": "<code>AudioBuffer()</code> constructor",
+          "description": "`AudioBuffer()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioBuffer/AudioBuffer",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiobuffer-audiobuffer",
           "tags": [
@@ -51,7 +52,7 @@
           "support": {
             "chrome": {
               "version_added": "55",
-              "notes": "The <code>context</code> parameter was supported up until version 57, but has now been removed."
+              "notes": "The `context` parameter was supported up until version 57, but has now been removed."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -68,7 +69,7 @@
             "opera": "mirror",
             "opera_android": {
               "version_added": "42",
-              "notes": "The <code>context</code> parameter was supported up until version 44, but has now been removed."
+              "notes": "The `context` parameter was supported up until version 44, but has now been removed."
             },
             "safari": {
               "version_added": "14.1"
@@ -76,9 +77,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": {
               "version_added": "6.0",
-              "notes": "The <code>context</code> parameter was supported up until Samsung Internet 7.0, but has now been removed."
+              "notes": "The `context` parameter was supported up until Samsung Internet 7.0, but has now been removed."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,7 +159,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -197,7 +201,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -238,7 +243,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -279,7 +285,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -320,7 +327,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -361,7 +369,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioBufferSourceNode.json b/api/AudioBufferSourceNode.json
index 6051418afb9df1..5009f6f0043f79 100644
--- a/api/AudioBufferSourceNode.json
+++ b/api/AudioBufferSourceNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "AudioBufferSourceNode": {
         "__compat": {
-          "description": "<code>AudioBufferSourceNode()</code> constructor",
+          "description": "`AudioBufferSourceNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode/AudioBufferSourceNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiobuffersourcenode-constructor-audiobuffersourcenode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -95,7 +97,7 @@
             },
             "firefox": {
               "version_added": "25",
-              "notes": "Firefox currently handles the value <code>null</code> incorrectly. Instead of producing a node that generates a single channel of silence, the node becomes unusable and will be ignored if you attempt to connect it to anything."
+              "notes": "Firefox currently handles the value `null` incorrectly. Instead of producing a node that generates a single channel of silence, the node becomes unusable and will be ignored if you attempt to connect it to anything."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -111,7 +113,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,7 +153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -191,7 +195,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -232,7 +237,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -273,7 +279,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,7 +321,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -355,7 +363,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioContext.json b/api/AudioContext.json
index c9efa8e6328b34..5f47b0d3f4b77a 100644
--- a/api/AudioContext.json
+++ b/api/AudioContext.json
@@ -44,7 +44,8 @@
           ],
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,7 +55,7 @@
       },
       "AudioContext": {
         "__compat": {
-          "description": "<code>AudioContext()</code> constructor",
+          "description": "`AudioContext()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiocontext-audiocontext",
           "tags": [
@@ -65,8 +66,8 @@
               {
                 "version_added": "35",
                 "notes": [
-                  "Before Chrome 66, each tab is limited to 6 audio contexts in Chrome; attempting to create more will throw a <code>DOMException</code>. For details see <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome'>Per-tab audio context limitation in Chrome</a>.",
-                  "If <code>latencyHint</code> isn't valid, Chrome throws a <code>TypeError</code> exception. See <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome'>Non-standard exceptions in Chrome</a> for details."
+                  "Before Chrome 66, each tab is limited to 6 audio contexts in Chrome; attempting to create more will throw a `DOMException`. For details see [Per-tab audio context limitation in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome).",
+                  "If `latencyHint` isn't valid, Chrome throws a `TypeError` exception. See [Non-standard exceptions in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome) for details."
                 ]
               },
               {
@@ -91,8 +92,8 @@
               {
                 "version_added": "22",
                 "notes": [
-                  "Before Opera 53, each tab is limited to 6 audio contexts in Opera; attempting to create more will throw a <code>DOMException</code>. For details see <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome'>Per-tab audio context limitation in Chrome</a>.",
-                  "If <code>latencyHint</code> isn't valid, Opera throws a <code>TypeError</code> exception. See <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome'>Non-standard exceptions in Chrome</a> for details."
+                  "Before Opera 53, each tab is limited to 6 audio contexts in Opera; attempting to create more will throw a `DOMException`. For details see [Per-tab audio context limitation in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome).",
+                  "If `latencyHint` isn't valid, Opera throws a `TypeError` exception. See [Non-standard exceptions in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome) for details."
                 ]
               },
               {
@@ -105,8 +106,8 @@
               {
                 "version_added": "22",
                 "notes": [
-                  "Before Opera Android 47, each tab is limited to 6 audio contexts in Opera; attempting to create more will throw a <code>DOMException</code>. For details see <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome'>Per-tab audio context limitation in Chrome</a>.",
-                  "If <code>latencyHint</code> isn't valid, Opera throws a <code>TypeError</code> exception. See <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome'>Non-standard exceptions in Chrome</a> for details."
+                  "Before Opera Android 47, each tab is limited to 6 audio contexts in Opera; attempting to create more will throw a `DOMException`. For details see [Per-tab audio context limitation in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome).",
+                  "If `latencyHint` isn't valid, Opera throws a `TypeError` exception. See [Non-standard exceptions in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome) for details."
                 ]
               },
               {
@@ -118,7 +119,7 @@
             "safari": [
               {
                 "version_added": "14.1",
-                "notes": "New audio contexts are suspended until the <code>resume()</code> method is called via user action, such as the <code>click</code> event."
+                "notes": "New audio contexts are suspended until the `resume()` method is called via user action, such as the `click` event."
               },
               {
                 "prefix": "webkit",
@@ -130,8 +131,8 @@
               {
                 "version_added": "3.0",
                 "notes": [
-                  "Before Samsung Internet 9.0, each tab is limited to 6 audio contexts in Samsung Internet; attempting to create more will throw a <code>DOMException</code>. For details see <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome'>Per-tab audio context limitation in Chrome</a>.",
-                  "If <code>latencyHint</code> isn't valid, Samsung Internet throws a <code>TypeError</code> exception. See <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome'>Non-standard exceptions in Chrome</a> for details."
+                  "Before Samsung Internet 9.0, each tab is limited to 6 audio contexts in Samsung Internet; attempting to create more will throw a `DOMException`. For details see [Per-tab audio context limitation in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome).",
+                  "If `latencyHint` isn't valid, Samsung Internet throws a `TypeError` exception. See [Non-standard exceptions in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome) for details."
                 ]
               },
               {
@@ -144,8 +145,8 @@
               {
                 "version_added": "37",
                 "notes": [
-                  "Before WebView 66, each tab is limited to 6 audio contexts in WebView; attempting to create more will throw a <code>DOMException</code>. For details see <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome'>Per-tab audio context limitation in Chrome</a>.",
-                  "If <code>latencyHint</code> isn't valid, WebView throws a <code>TypeError</code> exception. See <a href='https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome'>Non-standard exceptions in Chrome</a> for details."
+                  "Before WebView 66, each tab is limited to 6 audio contexts in WebView; attempting to create more will throw a `DOMException`. For details see [Per-tab audio context limitation in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Per-tab_audio_context_limitation_in_Chrome).",
+                  "If `latencyHint` isn't valid, WebView throws a `TypeError` exception. See [Non-standard exceptions in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome) for details."
                 ]
               },
               {
@@ -153,7 +154,8 @@
                 "version_added": "≤37",
                 "version_removed": "57"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,8 +165,11 @@
         },
         "options_latencyHint_parameter": {
           "__compat": {
-            "description": "<code>options.latencyHint</code> parameter",
+            "description": "`options.latencyHint` parameter",
             "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiocontextoptions-latencyhint",
+            "tags": [
+              "web-features:web-audio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -186,7 +191,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -197,8 +203,11 @@
         },
         "options_sampleRate_parameter": {
           "__compat": {
-            "description": "<code>options.sampleRate</code> parameter",
+            "description": "`options.sampleRate` parameter",
             "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiocontextoptions-samplerate",
+            "tags": [
+              "web-features:web-audio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "74"
@@ -220,7 +229,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -231,8 +241,11 @@
         },
         "options_sinkId_parameter": {
           "__compat": {
-            "description": "<code>options.sinkId</code> parameter",
+            "description": "`options.sinkId` parameter",
             "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiocontextoptions-sinkid",
+            "tags": [
+              "web-features:web-audio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "110"
@@ -254,7 +267,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -292,7 +306,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -331,7 +346,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -373,7 +389,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -412,7 +429,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -453,7 +471,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -492,7 +511,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -503,8 +523,11 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiocontext-onerror",
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "128"
@@ -526,7 +549,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -563,7 +587,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -600,7 +625,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -639,7 +665,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -652,6 +679,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioContext/setSinkId",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiocontext-setsinkid",
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "110"
@@ -673,7 +703,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -684,9 +715,12 @@
       },
       "sinkchange_event": {
         "__compat": {
-          "description": "<code>sinkchange</code> event",
+          "description": "`sinkchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioContext/sinkchange_event",
           "spec_url": "https://webaudio.github.io/web-audio-api/#eventdef-audiocontext-sinkchange",
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "110"
@@ -708,7 +742,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -721,6 +756,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioContext/sinkId",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiocontext-sinkid",
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "110"
@@ -742,7 +780,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -781,7 +820,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioData.json b/api/AudioData.json
index 6ed0c31763f81e..4983c4bfad6282 100644
--- a/api/AudioData.json
+++ b/api/AudioData.json
@@ -14,9 +14,11 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
+            "version_added": "130"
+          },
+          "firefox_android": {
             "version_added": false
           },
-          "firefox_android": "mirror",
           "ie": {
             "version_added": false
           },
@@ -28,17 +30,18 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
       },
       "AudioData": {
         "__compat": {
-          "description": "<code>AudioData()</code> constructor",
+          "description": "`AudioData()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioData/AudioData",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-audiodata-audiodata",
           "tags": [
@@ -51,9 +54,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -65,10 +70,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -88,9 +94,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -102,10 +110,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -125,9 +134,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -139,10 +150,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -162,9 +174,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -176,10 +190,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -199,9 +214,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -213,10 +230,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -236,9 +254,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -250,10 +270,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -273,9 +294,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -287,10 +310,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -310,9 +334,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -324,10 +350,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -347,9 +374,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -361,10 +390,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -384,9 +414,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -398,10 +430,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -421,9 +454,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -435,10 +470,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/AudioDecoder.json b/api/AudioDecoder.json
index 79d82fbef1877f..c23c1d99feffe6 100644
--- a/api/AudioDecoder.json
+++ b/api/AudioDecoder.json
@@ -14,10 +14,11 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false,
-            "impl_url": "https://bugzil.la/1749044"
+            "version_added": "130"
+          },
+          "firefox_android": {
+            "version_added": false
           },
-          "firefox_android": "mirror",
           "ie": {
             "version_added": false
           },
@@ -29,17 +30,18 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
       },
       "AudioDecoder": {
         "__compat": {
-          "description": "<code>AudioDecoder()</code> constructor",
+          "description": "`AudioDecoder()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioDecoder/AudioDecoder",
           "spec_url": "https://w3c.github.io/webcodecs/#audiodecoder",
           "tags": [
@@ -52,10 +54,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -67,10 +70,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -90,10 +94,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -105,10 +110,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -128,10 +134,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -143,10 +150,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -166,10 +174,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -181,10 +190,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -204,10 +214,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -219,10 +230,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -230,7 +242,7 @@
       },
       "dequeue_event": {
         "__compat": {
-          "description": "<code>dequeue</code> event",
+          "description": "`dequeue` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioDecoder/dequeue_event",
           "spec_url": "https://w3c.github.io/webcodecs/#eventdef-audiodecoder-dequeue",
           "tags": [
@@ -243,10 +255,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -258,10 +271,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -281,10 +295,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -296,10 +311,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -307,7 +323,7 @@
       },
       "isConfigSupported_static": {
         "__compat": {
-          "description": "<code>isConfigSupported()</code> static method",
+          "description": "`isConfigSupported()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioDecoder/isConfigSupported_static",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-audiodecoder-isconfigsupported",
           "tags": [
@@ -320,10 +336,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -335,10 +352,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -358,10 +376,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -373,10 +392,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -396,10 +416,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749044"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -411,10 +432,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/AudioDestinationNode.json b/api/AudioDestinationNode.json
index 7414afc55e07a6..c3d7a3649c9552 100644
--- a/api/AudioDestinationNode.json
+++ b/api/AudioDestinationNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,14 +74,15 @@
                 "version_added": "7",
                 "version_removed": "14.1",
                 "partial_implementation": true,
-                "notes": "This property always returns <code>0</code>."
+                "notes": "This property always returns `0`."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioEncoder.json b/api/AudioEncoder.json
index 0158b5265e17ae..d0a7993a6b24d8 100644
--- a/api/AudioEncoder.json
+++ b/api/AudioEncoder.json
@@ -14,10 +14,11 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false,
-            "impl_url": "https://bugzil.la/1749046"
+            "version_added": "130"
+          },
+          "firefox_android": {
+            "version_added": false
           },
-          "firefox_android": "mirror",
           "ie": {
             "version_added": false
           },
@@ -29,17 +30,18 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
       },
       "AudioEncoder": {
         "__compat": {
-          "description": "<code>AudioEncoder()</code> constructor",
+          "description": "`AudioEncoder()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioEncoder/AudioEncoder",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-audioencoder-audioencoder",
           "tags": [
@@ -52,10 +54,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -67,10 +70,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -90,10 +94,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -105,10 +110,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -128,10 +134,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -143,10 +150,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -164,9 +172,11 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
+                "version_added": "130"
+              },
+              "firefox_android": {
                 "version_added": false
               },
-              "firefox_android": "mirror",
               "ie": {
                 "version_added": false
               },
@@ -178,10 +188,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -200,9 +211,11 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
+                "version_added": "130"
+              },
+              "firefox_android": {
                 "version_added": false
               },
-              "firefox_android": "mirror",
               "ie": {
                 "version_added": false
               },
@@ -214,17 +227,18 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
           },
           "opus_application": {
             "__compat": {
-              "description": "<code>opus.application</code>",
+              "description": "`opus.application`",
               "spec_url": "https://w3c.github.io/webcodecs/opus_codec_registration.html#dom-opusencoderconfig-application",
               "tags": [
                 "web-features:webcodecs"
@@ -250,7 +264,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -261,7 +276,7 @@
           },
           "opus_signal": {
             "__compat": {
-              "description": "<code>opus.signal</code>",
+              "description": "`opus.signal`",
               "spec_url": "https://w3c.github.io/webcodecs/opus_codec_registration.html#dom-opusencoderconfig-signal",
               "tags": [
                 "web-features:webcodecs"
@@ -287,7 +302,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -300,7 +316,7 @@
       },
       "dequeue_event": {
         "__compat": {
-          "description": "<code>dequeue</code> event",
+          "description": "`dequeue` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioEncoder/dequeue_event",
           "spec_url": "https://w3c.github.io/webcodecs/#eventdef-audioencoder-dequeue",
           "tags": [
@@ -313,10 +329,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -328,10 +345,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -351,10 +369,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -366,10 +385,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -389,10 +409,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -404,10 +425,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -427,10 +449,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -442,10 +465,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -453,7 +477,7 @@
       },
       "isConfigSupported_static": {
         "__compat": {
-          "description": "<code>isConfigSupported()</code> static method",
+          "description": "`isConfigSupported()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioEncoder/isConfigSupported_static",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-audioencoder-isconfigsupported",
           "tags": [
@@ -466,10 +490,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -481,10 +506,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -504,10 +530,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -519,10 +546,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -542,10 +570,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749046"
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -557,10 +586,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/AudioListener.json b/api/AudioListener.json
index 6cef5aa521c175..0fb0ee12840396 100644
--- a/api/AudioListener.json
+++ b/api/AudioListener.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -55,7 +56,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "Supports a deprecated way of setting orientation - the <code>setOrientation()</code> method."
+              "notes": "Supports a deprecated way of setting orientation - the `setOrientation()` method."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "Supports a deprecated way of setting orientation - the <code>setOrientation()</code> method."
+              "notes": "Supports a deprecated way of setting orientation - the `setOrientation()` method."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,7 +134,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "Supports a deprecated way of setting orientation - the <code>setOrientation()</code> method."
+              "notes": "Supports a deprecated way of setting orientation - the `setOrientation()` method."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -145,7 +148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -169,7 +173,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "Supports a deprecated way of setting orientation - the <code>setOrientation()</code> method."
+              "notes": "Supports a deprecated way of setting orientation - the `setOrientation()` method."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -183,7 +187,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,7 +212,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "Supports a deprecated way of setting orientation - the <code>setOrientation()</code> method."
+              "notes": "Supports a deprecated way of setting orientation - the `setOrientation()` method."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -221,7 +226,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -245,7 +251,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "Supports a deprecated way of setting orientation - the <code>setOrientation()</code> method."
+              "notes": "Supports a deprecated way of setting orientation - the `setOrientation()` method."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -259,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -297,7 +304,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -335,7 +343,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -359,7 +368,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "Supports a deprecated way of setting orientation - the <code>setOrientation()</code> method."
+              "notes": "Supports a deprecated way of setting orientation - the `setOrientation()` method."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -373,7 +382,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -397,7 +407,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "Supports a deprecated way of setting orientation - the <code>setOrientation()</code> method."
+              "notes": "Supports a deprecated way of setting orientation - the `setOrientation()` method."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -411,7 +421,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -435,7 +446,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "Supports a deprecated way of setting orientation - the <code>setOrientation()</code> method."
+              "notes": "Supports a deprecated way of setting orientation - the `setOrientation()` method."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -449,7 +460,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioNode.json b/api/AudioNode.json
index e5334625e4560c..997426fc34506d 100644
--- a/api/AudioNode.json
+++ b/api/AudioNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +73,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +115,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,7 +157,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,7 +202,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -239,7 +244,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -280,7 +286,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -290,7 +297,10 @@
         },
         "destination_parameter": {
           "__compat": {
-            "description": "<code>destination</code> parameter",
+            "description": "`destination` parameter",
+            "tags": [
+              "web-features:web-audio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "43"
@@ -314,7 +324,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -325,7 +336,10 @@
         },
         "input_parameter": {
           "__compat": {
-            "description": "<code>input</code> parameter",
+            "description": "`input` parameter",
+            "tags": [
+              "web-features:web-audio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "43"
@@ -349,7 +363,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -391,7 +406,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,7 +448,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioParam.json b/api/AudioParam.json
index 85b84f186b061a..660f8800659b59 100644
--- a/api/AudioParam.json
+++ b/api/AudioParam.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,7 +150,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -188,7 +192,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -211,7 +216,7 @@
             "chrome_android": {
               "version_added": "18",
               "partial_implementation": true,
-              "notes": "This sets the target volume at the specified time, but it doesn’t ramp to it, causing this function to behave like <code>setValueAtTime()</code>."
+              "notes": "This sets the target volume at the specified time, but it doesn’t ramp to it, causing this function to behave like `setValueAtTime()`."
             },
             "edge": {
               "version_added": "12"
@@ -219,7 +224,7 @@
             "firefox": {
               "version_added": "25",
               "partial_implementation": true,
-              "notes": "Does not work (see <a href='https://bugzil.la/1171438'>bug 1171438</a> and <a href='https://bugzil.la/1567777'>bug 1567777</a>)."
+              "notes": "Does not work (see [bug 1171438](https://bugzil.la/1171438) and [bug 1567777](https://bugzil.la/1567777))."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -239,7 +244,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,7 +268,7 @@
             "chrome_android": {
               "version_added": "18",
               "partial_implementation": true,
-              "notes": "This sets the target volume at the specified time, but it doesn’t ramp to it, causing this function to behave like <code>setValueAtTime()</code>."
+              "notes": "This sets the target volume at the specified time, but it doesn’t ramp to it, causing this function to behave like `setValueAtTime()`."
             },
             "edge": {
               "version_added": "12"
@@ -270,7 +276,7 @@
             "firefox": {
               "version_added": "25",
               "partial_implementation": true,
-              "notes": "Does not work (see <a href='https://bugzil.la/1171438'>bug 1171438</a> and <a href='https://bugzil.la/1567777'>bug 1567777</a>)."
+              "notes": "Does not work (see [bug 1171438](https://bugzil.la/1171438) and [bug 1567777](https://bugzil.la/1567777))."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -290,7 +296,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -327,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -364,7 +372,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -405,7 +414,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -446,7 +456,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -487,7 +498,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -505,7 +517,8 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "14"
+              "version_added": "14",
+              "notes": "Before version 66, the gain value of a `GainNode` would perform a smooth interpolation to prevent dezippering (instead of changing instantly)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -513,7 +526,10 @@
             },
             "firefox": {
               "version_added": "25",
-              "notes": "Before Firefox 69, <code>value</code> did not take into account scheduled or gradiated changes to the parameter's value; instead, only explicitly set values were returned."
+              "notes": [
+                "Before Firefox 134, setting `value` was ignored when done at the same time as scheduled automation events.",
+                "Before Firefox 69, `value` did not take into account scheduled or gradiated changes to the parameter's value; instead, only explicitly set values were returned."
+              ]
             },
             "firefox_android": {
               "version_added": "25",
@@ -532,7 +548,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioParamMap.json b/api/AudioParamMap.json
index 7ee7721cb6e6d8..aac6617d3decbb 100644
--- a/api/AudioParamMap.json
+++ b/api/AudioParamMap.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,6 +39,9 @@
       },
       "entries": {
         "__compat": {
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -59,7 +63,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,6 +75,9 @@
       },
       "forEach": {
         "__compat": {
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -91,7 +99,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,6 +111,9 @@
       },
       "get": {
         "__compat": {
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -123,7 +135,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,6 +147,9 @@
       },
       "has": {
         "__compat": {
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -155,7 +171,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -166,6 +183,9 @@
       },
       "keys": {
         "__compat": {
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -187,7 +207,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +219,9 @@
       },
       "size": {
         "__compat": {
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -219,7 +243,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -230,6 +255,9 @@
       },
       "values": {
         "__compat": {
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -251,7 +279,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -263,6 +292,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -284,7 +316,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioProcessingEvent.json b/api/AudioProcessingEvent.json
index bc344af81de405..acefe15d9db88b 100644
--- a/api/AudioProcessingEvent.json
+++ b/api/AudioProcessingEvent.json
@@ -26,7 +26,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,7 +37,7 @@
       },
       "AudioProcessingEvent": {
         "__compat": {
-          "description": "<code>AudioProcessingEvent()</code> constructor",
+          "description": "`AudioProcessingEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioProcessingEvent/AudioProcessingEvent",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audioprocessingevent-audioprocessingevent",
           "support": {
@@ -60,7 +61,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -96,7 +98,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,7 +135,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -170,7 +174,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioScheduledSourceNode.json b/api/AudioScheduledSourceNode.json
index e470ddb7081c2e..df7821273a89ce 100644
--- a/api/AudioScheduledSourceNode.json
+++ b/api/AudioScheduledSourceNode.json
@@ -16,7 +16,7 @@
               "version_added": "14",
               "version_removed": "57",
               "partial_implementation": true,
-              "notes": "The <code>AudioScheduledSourceNode</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode'><code>AudioBufferSourceNode</code></a>, <a href='https://developer.mozilla.org/docs/Web/API/ConstantSourceNode'><code>ConstantSourceNode</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OscillatorNode'><code>OscillatorNode</code></a> interfaces."
+              "notes": "The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the [`AudioBufferSourceNode`](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode), [`ConstantSourceNode`](https://developer.mozilla.org/docs/Web/API/ConstantSourceNode) and [`OscillatorNode`](https://developer.mozilla.org/docs/Web/API/OscillatorNode) interfaces."
             }
           ],
           "chrome_android": "mirror",
@@ -28,7 +28,7 @@
               "version_added": "12",
               "version_removed": "79",
               "partial_implementation": true,
-              "notes": "The <code>AudioScheduledSourceNode</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode'><code>AudioBufferSourceNode</code></a>, <a href='https://developer.mozilla.org/docs/Web/API/ConstantSourceNode'><code>ConstantSourceNode</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OscillatorNode'><code>OscillatorNode</code></a> interfaces."
+              "notes": "The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the [`AudioBufferSourceNode`](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode), [`ConstantSourceNode`](https://developer.mozilla.org/docs/Web/API/ConstantSourceNode) and [`OscillatorNode`](https://developer.mozilla.org/docs/Web/API/OscillatorNode) interfaces."
             }
           ],
           "firefox": [
@@ -39,7 +39,7 @@
               "version_added": "25",
               "version_removed": "53",
               "partial_implementation": true,
-              "notes": "The <code>AudioScheduledSourceNode</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode'><code>AudioBufferSourceNode</code></a>, <a href='https://developer.mozilla.org/docs/Web/API/ConstantSourceNode'><code>ConstantSourceNode</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OscillatorNode'><code>OscillatorNode</code></a> interfaces."
+              "notes": "The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the [`AudioBufferSourceNode`](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode), [`ConstantSourceNode`](https://developer.mozilla.org/docs/Web/API/ConstantSourceNode) and [`OscillatorNode`](https://developer.mozilla.org/docs/Web/API/OscillatorNode) interfaces."
             }
           ],
           "firefox_android": "mirror",
@@ -57,7 +57,7 @@
               "version_added": "6",
               "version_removed": "14",
               "partial_implementation": true,
-              "notes": "The <code>AudioScheduledSourceNode</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode'><code>AudioBufferSourceNode</code></a>, <a href='https://developer.mozilla.org/docs/Web/API/ConstantSourceNode'><code>ConstantSourceNode</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OscillatorNode'><code>OscillatorNode</code></a> interfaces."
+              "notes": "The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the [`AudioBufferSourceNode`](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode), [`ConstantSourceNode`](https://developer.mozilla.org/docs/Web/API/ConstantSourceNode) and [`OscillatorNode`](https://developer.mozilla.org/docs/Web/API/OscillatorNode) interfaces."
             }
           ],
           "safari_ios": "mirror",
@@ -70,9 +70,10 @@
               "version_added": "≤37",
               "version_removed": "57",
               "partial_implementation": true,
-              "notes": "The <code>AudioScheduledSourceNode</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode'><code>AudioBufferSourceNode</code></a>, <a href='https://developer.mozilla.org/docs/Web/API/ConstantSourceNode'><code>ConstantSourceNode</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OscillatorNode'><code>OscillatorNode</code></a> interfaces."
+              "notes": "The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the [`AudioBufferSourceNode`](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode), [`ConstantSourceNode`](https://developer.mozilla.org/docs/Web/API/ConstantSourceNode) and [`OscillatorNode`](https://developer.mozilla.org/docs/Web/API/OscillatorNode) interfaces."
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -82,7 +83,7 @@
       },
       "ended_event": {
         "__compat": {
-          "description": "<code>ended</code> event",
+          "description": "`ended` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioScheduledSourceNode/ended_event",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audioscheduledsourcenode-onended",
           "tags": [
@@ -113,7 +114,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -152,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -191,7 +194,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioSession.json b/api/AudioSession.json
index 93a6ca031b5ad4..84f8fd35178856 100644
--- a/api/AudioSession.json
+++ b/api/AudioSession.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -62,7 +63,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/AudioSinkInfo.json b/api/AudioSinkInfo.json
index 51c3ae3b2aad0c..0e678d744e8d20 100644
--- a/api/AudioSinkInfo.json
+++ b/api/AudioSinkInfo.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioSinkInfo",
         "spec_url": "https://webaudio.github.io/web-audio-api/#AudioSinkInfo",
+        "tags": [
+          "web-features:web-audio"
+        ],
         "support": {
           "chrome": {
             "version_added": "110"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioSinkInfo/type",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audiosinkinfo-type",
+          "tags": [
+            "web-features:web-audio"
+          ],
           "support": {
             "chrome": {
               "version_added": "110"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/AudioTrack.json b/api/AudioTrack.json
index f3499b2204bc5c..a27791ba34f8bd 100644
--- a/api/AudioTrack.json
+++ b/api/AudioTrack.json
@@ -57,7 +57,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -122,7 +123,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -188,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +257,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -320,7 +324,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -386,7 +391,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -442,11 +448,13 @@
             },
             "safari_ios": {
               "version_added": "13",
+              "impl_url": "https://webkit.org/b/200147",
               "partial_implementation": true,
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioTrackList.json b/api/AudioTrackList.json
index b86d60ba8b334a..c5e0ddd05104ce 100644
--- a/api/AudioTrackList.json
+++ b/api/AudioTrackList.json
@@ -57,7 +57,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -67,7 +68,7 @@
       },
       "addtrack_event": {
         "__compat": {
-          "description": "<code>addtrack</code> event",
+          "description": "`addtrack` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioTrackList/addtrack_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-addtrack",
@@ -126,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,7 +139,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioTrackList/change_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-change",
@@ -196,7 +198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -328,7 +332,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,7 +344,7 @@
       },
       "removetrack_event": {
         "__compat": {
-          "description": "<code>removetrack</code> event",
+          "description": "`removetrack` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioTrackList/removetrack_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-removetrack",
@@ -398,7 +403,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioWorklet.json b/api/AudioWorklet.json
index 92d377b826ba7e..2dd6fe5d7c3116 100644
--- a/api/AudioWorklet.json
+++ b/api/AudioWorklet.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/AudioWorkletGlobalScope.json b/api/AudioWorkletGlobalScope.json
index 9b10fa908ff0bd..09e5697e9232cf 100644
--- a/api/AudioWorkletGlobalScope.json
+++ b/api/AudioWorkletGlobalScope.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioWorkletNode.json b/api/AudioWorkletNode.json
index b342c49d777740..1e804d5a86900c 100644
--- a/api/AudioWorkletNode.json
+++ b/api/AudioWorkletNode.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "AudioWorkletNode": {
         "__compat": {
-          "description": "<code>AudioWorkletNode()</code> constructor",
+          "description": "`AudioWorkletNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioWorkletNode/AudioWorkletNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audioworkletnode-audioworkletnode",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,7 +154,7 @@
       },
       "processorerror_event": {
         "__compat": {
-          "description": "<code>processorerror</code> event",
+          "description": "`processorerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioWorkletNode/processorerror_event",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audioworkletnode-onprocessorerror",
           "tags": [
@@ -177,7 +181,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AudioWorkletProcessor.json b/api/AudioWorkletProcessor.json
index 1738c569e86627..24873f5a532554 100644
--- a/api/AudioWorkletProcessor.json
+++ b/api/AudioWorkletProcessor.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "AudioWorkletProcessor": {
         "__compat": {
-          "description": "<code>AudioWorkletProcessor()</code> constructor",
+          "description": "`AudioWorkletProcessor()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AudioWorkletProcessor/AudioWorkletProcessor",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-audioworkletprocessor-audioworkletprocessor",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AuthenticatorAssertionResponse.json b/api/AuthenticatorAssertionResponse.json
index 234aeb2c594497..e3403f97354168 100644
--- a/api/AuthenticatorAssertionResponse.json
+++ b/api/AuthenticatorAssertionResponse.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/AuthenticatorAssertionResponse",
         "spec_url": "https://w3c.github.io/webauthn/#iface-authenticatorassertionresponse",
+        "tags": [
+          "web-features:webauthn"
+        ],
         "support": {
           "chrome": {
             "version_added": "67"
@@ -44,7 +47,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,6 +60,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AuthenticatorAssertionResponse/authenticatorData",
           "spec_url": "https://w3c.github.io/webauthn/#dom-authenticatorassertionresponse-authenticatordata",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -96,7 +103,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AuthenticatorAssertionResponse/signature",
           "spec_url": "https://w3c.github.io/webauthn/#dom-authenticatorassertionresponse-signature",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -149,7 +160,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,6 +174,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AuthenticatorAssertionResponse/userHandle",
           "spec_url": "https://w3c.github.io/webauthn/#dom-authenticatorassertionresponse-userhandle",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -202,7 +217,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AuthenticatorAttestationResponse.json b/api/AuthenticatorAttestationResponse.json
index 584092ecc46716..fd8f47a3a27766 100644
--- a/api/AuthenticatorAttestationResponse.json
+++ b/api/AuthenticatorAttestationResponse.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/AuthenticatorAttestationResponse",
         "spec_url": "https://w3c.github.io/webauthn/#authenticatorattestationresponse",
+        "tags": [
+          "web-features:webauthn"
+        ],
         "support": {
           "chrome": {
             "version_added": "67"
@@ -44,7 +47,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,6 +60,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AuthenticatorAttestationResponse/attestationObject",
           "spec_url": "https://w3c.github.io/webauthn/#dom-authenticatorattestationresponse-attestationobject",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -96,7 +103,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,7 +143,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,7 +183,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -213,7 +223,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -226,6 +237,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AuthenticatorAttestationResponse/getTransports",
           "spec_url": "https://w3c.github.io/webauthn/#dom-authenticatorattestationresponse-gettransports",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -249,7 +263,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/AuthenticatorResponse.json b/api/AuthenticatorResponse.json
index 26204e84f15dca..071d075c32338d 100644
--- a/api/AuthenticatorResponse.json
+++ b/api/AuthenticatorResponse.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/AuthenticatorResponse",
         "spec_url": "https://w3c.github.io/webauthn/#authenticatorresponse",
+        "tags": [
+          "web-features:webauthn"
+        ],
         "support": {
           "chrome": {
             "version_added": "67"
@@ -44,7 +47,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,6 +60,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/AuthenticatorResponse/clientDataJSON",
           "spec_url": "https://w3c.github.io/webauthn/#dom-authenticatorresponse-clientdatajson",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -96,7 +103,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/BackgroundFetchEvent.json b/api/BackgroundFetchEvent.json
index 89dcfa1bc0d304..8fed414e65367c 100644
--- a/api/BackgroundFetchEvent.json
+++ b/api/BackgroundFetchEvent.json
@@ -30,7 +30,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "BackgroundFetchEvent": {
         "__compat": {
-          "description": "<code>BackgroundFetchEvent()</code> constructor",
+          "description": "`BackgroundFetchEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BackgroundFetchEvent/BackgroundFetchEvent",
           "spec_url": "https://wicg.github.io/background-fetch/#dom-backgroundfetchevent-backgroundfetchevent",
           "tags": [
@@ -69,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BackgroundFetchManager.json b/api/BackgroundFetchManager.json
index 545a47c4bc7167..5a69a1513f3841 100644
--- a/api/BackgroundFetchManager.json
+++ b/api/BackgroundFetchManager.json
@@ -30,7 +30,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -68,7 +69,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +109,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,7 +149,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BackgroundFetchRecord.json b/api/BackgroundFetchRecord.json
index 325d3b80f5c925..42b3144d8b26dd 100644
--- a/api/BackgroundFetchRecord.json
+++ b/api/BackgroundFetchRecord.json
@@ -30,7 +30,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -68,7 +69,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +109,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BackgroundFetchRegistration.json b/api/BackgroundFetchRegistration.json
index 56fd51e3a3385e..8631580cd1ca33 100644
--- a/api/BackgroundFetchRegistration.json
+++ b/api/BackgroundFetchRegistration.json
@@ -30,7 +30,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -68,7 +69,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +109,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,7 +149,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -185,7 +189,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -224,7 +229,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -263,7 +269,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -302,7 +309,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -313,7 +321,7 @@
       },
       "progress_event": {
         "__compat": {
-          "description": "<code>progress</code> event",
+          "description": "`progress` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BackgroundFetchRegistration/progress_event",
           "spec_url": "https://wicg.github.io/background-fetch/#background-fetch-registration-events",
           "tags": [
@@ -342,7 +350,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -381,7 +390,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -420,7 +430,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -459,7 +470,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -498,7 +510,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BackgroundFetchUpdateUIEvent.json b/api/BackgroundFetchUpdateUIEvent.json
index 3948a0d2b0d044..30616f68975b57 100644
--- a/api/BackgroundFetchUpdateUIEvent.json
+++ b/api/BackgroundFetchUpdateUIEvent.json
@@ -30,7 +30,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "BackgroundFetchUpdateUIEvent": {
         "__compat": {
-          "description": "<code>BackgroundFetchUpdateUIEvent()</code> constructor",
+          "description": "`BackgroundFetchUpdateUIEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BackgroundFetchUpdateUIEvent/BackgroundFetchUpdateUIEvent",
           "spec_url": "https://wicg.github.io/background-fetch/#dom-backgroundfetchupdateuievent-backgroundfetchupdateuievent",
           "tags": [
@@ -69,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BarProp.json b/api/BarProp.json
index 70617075c0e123..956545901d34cb 100644
--- a/api/BarProp.json
+++ b/api/BarProp.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/BarProp",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#barprop",
+        "tags": [
+          "web-features:barprop"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BarProp/visible",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-barprop-visible",
+          "tags": [
+            "web-features:barprop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -80,7 +88,10 @@
         },
         "returns_popup": {
           "__compat": {
-            "description": "Returns <code>true</code> for non-popup windows",
+            "description": "Returns `true` for non-popup windows",
+            "tags": [
+              "web-features:barprop"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -102,7 +113,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/api/BarcodeDetector.json b/api/BarcodeDetector.json
index 23d9f351196110..1fd2fb224771ec 100644
--- a/api/BarcodeDetector.json
+++ b/api/BarcodeDetector.json
@@ -11,7 +11,7 @@
               "partial_implementation": true,
               "notes": [
                 "Supported on ChromeOS and macOS only.",
-                "Before Chrome 113, on macOS Ventura (13) and above, this interface silently failed. See <a href='https://crbug.com/40245611'>bug 40245611</a>."
+                "Before Chrome 113, on macOS Ventura (13) and above, this interface silently failed. See [bug 40245611](https://crbug.com/40245611)."
               ]
             },
             {
@@ -29,11 +29,12 @@
             "partial_implementation": true,
             "notes": [
               "Supported on macOS only.",
-              "Before Chrome 113, on macOS Ventura (13) and above, this interface silently failed. See <a href='https://crbug.com/40245611'>bug 40245611</a>."
+              "Before Chrome 113, on macOS Ventura (13) and above, this interface silently failed. See [bug 40245611](https://crbug.com/40245611)."
             ]
           },
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1553738"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -45,7 +46,7 @@
             "partial_implementation": true,
             "notes": [
               "Supported on macOS only.",
-              "Before Chrome 113, on macOS Ventura (13) and above, this interface silently failed. See <a href='https://crbug.com/40245611'>bug 40245611</a>."
+              "Before Chrome 113, on macOS Ventura (13) and above, this interface silently failed. See [bug 40245611](https://crbug.com/40245611)."
             ]
           },
           "opera_android": "mirror",
@@ -61,7 +62,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -71,7 +73,7 @@
       },
       "BarcodeDetector": {
         "__compat": {
-          "description": "<code>BarcodeDetector()</code> constructor",
+          "description": "`BarcodeDetector()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BarcodeDetector/BarcodeDetector",
           "spec_url": "https://wicg.github.io/shape-detection-api/#dom-barcodedetector-barcodedetector",
           "support": {
@@ -97,7 +99,8 @@
               "notes": "Supported on macOS only."
             },
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1553738"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -122,7 +125,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -158,7 +162,8 @@
               "notes": "Supported on macOS only."
             },
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1553738"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -183,7 +188,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -194,7 +200,7 @@
       },
       "getSupportedFormats_static": {
         "__compat": {
-          "description": "<code>getSupportedFormats()</code> static method",
+          "description": "`getSupportedFormats()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BarcodeDetector/getSupportedFormats_static",
           "spec_url": "https://wicg.github.io/shape-detection-api/#dom-barcodedetector-getsupportedformats",
           "support": {
@@ -220,7 +226,8 @@
               "notes": "Supported on macOS only."
             },
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1553738"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -245,7 +252,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BaseAudioContext.json b/api/BaseAudioContext.json
index f235a55f87d0de..5161d50612ffaa 100644
--- a/api/BaseAudioContext.json
+++ b/api/BaseAudioContext.json
@@ -16,7 +16,7 @@
               "version_added": "14",
               "version_removed": "56",
               "partial_implementation": true,
-              "notes": "The <code>BaseAudioContext</code> interface itself is not present, but many of the methods are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioContext'><code>AudioContext</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OfflineAudioContext'><code>OfflineAudioContext</code></a> interfaces."
+              "notes": "The `BaseAudioContext` interface itself is not present, but many of the methods are available on the [`AudioContext`](https://developer.mozilla.org/docs/Web/API/AudioContext) and [`OfflineAudioContext`](https://developer.mozilla.org/docs/Web/API/OfflineAudioContext) interfaces."
             }
           ],
           "chrome_android": "mirror",
@@ -28,7 +28,7 @@
               "version_added": "12",
               "version_removed": "79",
               "partial_implementation": true,
-              "notes": "The <code>BaseAudioContext</code> interface itself is not present, but many of the methods are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioContext'><code>AudioContext</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OfflineAudioContext'><code>OfflineAudioContext</code></a> interfaces."
+              "notes": "The `BaseAudioContext` interface itself is not present, but many of the methods are available on the [`AudioContext`](https://developer.mozilla.org/docs/Web/API/AudioContext) and [`OfflineAudioContext`](https://developer.mozilla.org/docs/Web/API/OfflineAudioContext) interfaces."
             }
           ],
           "firefox": [
@@ -39,7 +39,7 @@
               "version_added": "25",
               "version_removed": "53",
               "partial_implementation": true,
-              "notes": "The <code>BaseAudioContext</code> interface itself is not present, but many of the methods are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioContext'><code>AudioContext</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OfflineAudioContext'><code>OfflineAudioContext</code></a> interfaces."
+              "notes": "The `BaseAudioContext` interface itself is not present, but many of the methods are available on the [`AudioContext`](https://developer.mozilla.org/docs/Web/API/AudioContext) and [`OfflineAudioContext`](https://developer.mozilla.org/docs/Web/API/OfflineAudioContext) interfaces."
             }
           ],
           "firefox_android": "mirror",
@@ -57,7 +57,7 @@
               "version_added": "6",
               "version_removed": "14.1",
               "partial_implementation": true,
-              "notes": "The <code>BaseAudioContext</code> interface itself is not present, but many of the methods are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioContext'><code>AudioContext</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OfflineAudioContext'><code>OfflineAudioContext</code></a> interfaces."
+              "notes": "The `BaseAudioContext` interface itself is not present, but many of the methods are available on the [`AudioContext`](https://developer.mozilla.org/docs/Web/API/AudioContext) and [`OfflineAudioContext`](https://developer.mozilla.org/docs/Web/API/OfflineAudioContext) interfaces."
             }
           ],
           "safari_ios": "mirror",
@@ -70,9 +70,10 @@
               "version_added": "≤37",
               "version_removed": "56",
               "partial_implementation": true,
-              "notes": "The <code>BaseAudioContext</code> interface itself is not present, but many of the methods are available on the <a href='https://developer.mozilla.org/docs/Web/API/AudioContext'><code>AudioContext</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/OfflineAudioContext'><code>OfflineAudioContext</code></a> interfaces."
+              "notes": "The `BaseAudioContext` interface itself is not present, but many of the methods are available on the [`AudioContext`](https://developer.mozilla.org/docs/Web/API/AudioContext) and [`OfflineAudioContext`](https://developer.mozilla.org/docs/Web/API/OfflineAudioContext) interfaces."
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -149,7 +151,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,7 +193,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -231,7 +235,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -272,7 +277,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -313,7 +319,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -354,7 +361,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -391,7 +399,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,7 +441,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -473,7 +483,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -514,7 +525,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -555,7 +567,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -594,7 +607,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -633,7 +647,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -674,7 +689,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -713,7 +729,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -723,14 +740,17 @@
         },
         "constraints_disableNormalization_parameter": {
           "__compat": {
-            "description": "<code>constraints.disableNormalization</code> parameter",
+            "description": "`constraints.disableNormalization` parameter",
+            "tags": [
+              "web-features:web-audio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "49"
@@ -747,7 +767,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -786,7 +807,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -825,7 +847,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -866,7 +889,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -907,7 +931,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -948,7 +973,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -958,14 +984,17 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
+            "tags": [
+              "web-features:web-audio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "16"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "36"
@@ -982,7 +1011,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1024,7 +1054,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1065,7 +1096,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1106,7 +1138,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1145,7 +1178,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1156,7 +1190,7 @@
       },
       "statechange_event": {
         "__compat": {
-          "description": "<code>statechange</code> event",
+          "description": "`statechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BaseAudioContext/statechange_event",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-onstatechange",
           "tags": [
@@ -1185,7 +1219,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/BatteryManager.json b/api/BatteryManager.json
index b1aa570c88d003..8a21385c4fa927 100644
--- a/api/BatteryManager.json
+++ b/api/BatteryManager.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/BatteryManager",
         "spec_url": "https://w3c.github.io/battery/#the-batterymanager-interface",
+        "tags": [
+          "web-features:battery"
+        ],
         "support": {
           "chrome": {
             "version_added": "38"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
       "secure_context_required": {
         "__compat": {
           "description": "Secure context required",
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "103"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -73,6 +81,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BatteryManager/charging",
           "spec_url": "https://w3c.github.io/battery/#dom-batterymanager-charging",
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,12 +118,15 @@
       },
       "chargingchange_event": {
         "__compat": {
-          "description": "<code>chargingchange</code> event",
+          "description": "`chargingchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BatteryManager/chargingchange_event",
           "spec_url": [
             "https://w3c.github.io/battery/#ref-for-dfn-chargingchange-1",
             "https://w3c.github.io/battery/#dom-batterymanager-onchargingchange"
           ],
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BatteryManager/chargingTime",
           "spec_url": "https://w3c.github.io/battery/#dom-batterymanager-chargingtime",
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -159,7 +178,7 @@
                 "version_added": "38",
                 "version_removed": "42",
                 "partial_implementation": true,
-                "notes": "Always equal to <code>0</code> or <code>Infinity</code>."
+                "notes": "Always equal to `0` or `Infinity`."
               }
             ],
             "edge": "mirror",
@@ -179,7 +198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,12 +210,15 @@
       },
       "chargingtimechange_event": {
         "__compat": {
-          "description": "<code>chargingtimechange</code> event",
+          "description": "`chargingtimechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BatteryManager/chargingtimechange_event",
           "spec_url": [
             "https://w3c.github.io/battery/#ref-for-dfn-chargingtimechange-1",
             "https://w3c.github.io/battery/#dom-batterymanager-onchargingtimechange"
           ],
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -218,7 +241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -231,6 +255,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BatteryManager/dischargingTime",
           "spec_url": "https://w3c.github.io/battery/#dom-batterymanager-dischargingtime",
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -243,7 +270,7 @@
                 "version_added": "38",
                 "version_removed": "42",
                 "partial_implementation": true,
-                "notes": "Always equal to <code>Infinity</code>."
+                "notes": "Always equal to `Infinity`."
               }
             ],
             "edge": "mirror",
@@ -263,7 +290,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,12 +302,15 @@
       },
       "dischargingtimechange_event": {
         "__compat": {
-          "description": "<code>dischargingtimechange</code> event",
+          "description": "`dischargingtimechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BatteryManager/dischargingtimechange_event",
           "spec_url": [
             "https://w3c.github.io/battery/#ref-for-dfn-dischargingtimechange-1",
             "https://w3c.github.io/battery/#dom-batterymanager-ondischargingtimechange"
           ],
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -302,7 +333,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BatteryManager/level",
           "spec_url": "https://w3c.github.io/battery/#dom-batterymanager-level",
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -337,7 +372,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -348,12 +384,15 @@
       },
       "levelchange_event": {
         "__compat": {
-          "description": "<code>levelchange</code> event",
+          "description": "`levelchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BatteryManager/levelchange_event",
           "spec_url": [
             "https://w3c.github.io/battery/#ref-for-dfn-levelchange-1",
             "https://w3c.github.io/battery/#dom-batterymanager-onlevelchange"
           ],
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -376,7 +415,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/BeforeInstallPromptEvent.json b/api/BeforeInstallPromptEvent.json
index 0b14ed55a67c6e..d730cff0c12c07 100644
--- a/api/BeforeInstallPromptEvent.json
+++ b/api/BeforeInstallPromptEvent.json
@@ -26,7 +26,8 @@
           "samsunginternet_android": {
             "version_added": "5.0"
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -36,7 +37,7 @@
       },
       "BeforeInstallPromptEvent": {
         "__compat": {
-          "description": "<code>BeforeInstallPromptEvent()</code> constructor",
+          "description": "`BeforeInstallPromptEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BeforeInstallPromptEvent/BeforeInstallPromptEvent",
           "support": {
             "chrome": {
@@ -61,7 +62,8 @@
             "samsunginternet_android": {
               "version_added": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -96,7 +98,8 @@
             "samsunginternet_android": {
               "version_added": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,7 +142,8 @@
             "samsunginternet_android": {
               "version_added": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -174,7 +178,8 @@
             "samsunginternet_android": {
               "version_added": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BeforeUnloadEvent.json b/api/BeforeUnloadEvent.json
index 751a067866aa1d..1c75d48895ba63 100644
--- a/api/BeforeUnloadEvent.json
+++ b/api/BeforeUnloadEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/BeforeUnloadEvent",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-beforeunloadevent-interface",
+        "tags": [
+          "web-features:beforeunload"
+        ],
         "support": {
           "chrome": {
             "version_added": "30"
@@ -34,7 +37,8 @@
           },
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -84,7 +88,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,7 +125,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/BiquadFilterNode.json b/api/BiquadFilterNode.json
index 2959fcaf06c124..b20b48ece3cdd2 100644
--- a/api/BiquadFilterNode.json
+++ b/api/BiquadFilterNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "BiquadFilterNode": {
         "__compat": {
-          "description": "<code>BiquadFilterNode()</code> constructor",
+          "description": "`BiquadFilterNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BiquadFilterNode/BiquadFilterNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-biquadfilternode-biquadfilternode-context-options",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,7 +154,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -192,7 +196,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,7 +238,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +280,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,7 +322,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Blob.json b/api/Blob.json
index 13e3bca737f0ed..98b3e2a53ade50 100644
--- a/api/Blob.json
+++ b/api/Blob.json
@@ -32,7 +32,7 @@
               "version_removed": "18.0.0",
               "notes": [
                 "Experimental implementation.",
-                "Must be imported using <code>require('buffer').Blob</code> or <code>import { Blob } from 'buffer'</code>."
+                "Must be imported using `require('buffer').Blob` or `import { Blob } from 'buffer'`."
               ]
             }
           ],
@@ -48,7 +48,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -58,7 +59,7 @@
       },
       "Blob": {
         "__compat": {
-          "description": "<code>Blob()</code> constructor",
+          "description": "`Blob()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Blob/Blob",
           "spec_url": "https://w3c.github.io/FileAPI/#constructorBlob",
           "support": {
@@ -74,12 +75,12 @@
             },
             "firefox": {
               "version_added": "13",
-              "notes": "Before Firefox 16, the second parameter, when set to <code>null</code> or <code>undefined</code>, leads to an error instead of being handled as an empty dictionary."
+              "notes": "Before Firefox 16, the second parameter, when set to `null` or `undefined`, leads to an error instead of being handled as an empty dictionary."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
-              "notes": "IE10 throws <code>InvalidStateError</code> with a <code>TypedArray</code> argument. Consider using <code>MSBuilder</code> as an alternative."
+              "notes": "IE10 throws `InvalidStateError` with a `TypedArray` argument. Consider using `MSBuilder` as an alternative."
             },
             "nodejs": {
               "version_added": "15.7.0"
@@ -96,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,7 +109,7 @@
       },
       "arrayBuffer": {
         "__compat": {
-          "description": "<code>arrayBuffer()</code>",
+          "description": "`arrayBuffer()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Blob/arrayBuffer",
           "spec_url": "https://w3c.github.io/FileAPI/#dom-blob-arraybuffer",
           "support": {
@@ -139,7 +141,8 @@
               "version_added": "14.5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -222,7 +226,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,7 +238,7 @@
       },
       "slice": {
         "__compat": {
-          "description": "<code>slice()</code>",
+          "description": "`slice()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Blob/slice",
           "spec_url": "https://w3c.github.io/FileAPI/#dfn-slice",
           "support": {
@@ -257,7 +262,7 @@
             "firefox": [
               {
                 "version_added": "13",
-                "notes": "Before Firefox 12, there was a bug that affected the behavior of <code>Blob.slice()</code>; it did not work for <code>start</code> and <code>end</code> positions outside the range of signed 64-bit values; it has now been fixed to support unsigned 64-bit values."
+                "notes": "Before Firefox 12, there was a bug that affected the behavior of `Blob.slice()`; it did not work for `start` and `end` positions outside the range of signed 64-bit values; it has now been fixed to support unsigned 64-bit values."
               },
               {
                 "prefix": "moz",
@@ -291,7 +296,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -302,7 +308,7 @@
       },
       "stream": {
         "__compat": {
-          "description": "<code>stream()</code>",
+          "description": "`stream()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Blob/stream",
           "spec_url": "https://w3c.github.io/FileAPI/#dom-blob-stream",
           "support": {
@@ -332,7 +338,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -343,7 +350,7 @@
       },
       "text": {
         "__compat": {
-          "description": "<code>text()</code>",
+          "description": "`text()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Blob/text",
           "spec_url": "https://w3c.github.io/FileAPI/#dom-blob-text",
           "support": {
@@ -375,7 +382,8 @@
               "version_added": "14.5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -421,7 +429,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/BlobEvent.json b/api/BlobEvent.json
index 3f0a4223092572..0b62b3182325df 100644
--- a/api/BlobEvent.json
+++ b/api/BlobEvent.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "BlobEvent": {
         "__compat": {
-          "description": "<code>BlobEvent()</code> constructor",
+          "description": "`BlobEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BlobEvent/BlobEvent",
           "spec_url": "https://w3c.github.io/mediacapture-record/#dom-blobevent-blobevent",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +131,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Bluetooth.json b/api/Bluetooth.json
index 8c37b7da8fb5e0..5d3bc8473b4ca3 100644
--- a/api/Bluetooth.json
+++ b/api/Bluetooth.json
@@ -44,8 +44,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/1100993"
-          }
+            "impl_url": "https://crbug.com/40703318"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -85,7 +86,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -131,7 +133,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -172,7 +175,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -182,9 +186,12 @@
         },
         "options_exclusionFilters_parameter": {
           "__compat": {
-            "description": "<code>options.exclusionFilters</code> parameter",
+            "description": "`options.exclusionFilters` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/Bluetooth/requestDevice",
             "spec_url": "https://webbluetoothcg.github.io/web-bluetooth/#dom-requestdeviceoptions-exclusionfilters",
+            "tags": [
+              "web-features:web-bluetooth"
+            ],
             "support": {
               "chrome": {
                 "version_added": "114"
@@ -208,7 +215,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -219,9 +227,12 @@
         },
         "options_filter_manufacturerData_parameter": {
           "__compat": {
-            "description": "<code>options.filter.manufacturerData</code> parameter",
+            "description": "`options.filter.manufacturerData` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/Bluetooth/requestDevice",
             "spec_url": "https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothlescanfilterinit-manufacturerdata",
+            "tags": [
+              "web-features:web-bluetooth"
+            ],
             "support": {
               "chrome": {
                 "version_added": "92"
@@ -245,7 +256,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/BluetoothCharacteristicProperties.json b/api/BluetoothCharacteristicProperties.json
index 10249efc468650..f4bf38cdfc38ee 100644
--- a/api/BluetoothCharacteristicProperties.json
+++ b/api/BluetoothCharacteristicProperties.json
@@ -44,8 +44,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/1100993"
-          }
+            "impl_url": "https://crbug.com/40703318"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -85,7 +86,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -126,7 +128,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +170,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -208,7 +212,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -249,7 +254,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -290,7 +296,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -331,7 +338,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -372,7 +380,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -413,7 +422,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BluetoothDevice.json b/api/BluetoothDevice.json
index 7166d9156a71b2..bd37fdcaaaf99b 100644
--- a/api/BluetoothDevice.json
+++ b/api/BluetoothDevice.json
@@ -44,8 +44,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/1100993"
-          }
+            "impl_url": "https://crbug.com/40703318"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -85,7 +86,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -96,7 +98,7 @@
       },
       "gattserverdisconnected_event": {
         "__compat": {
-          "description": "<code>gattserverdisconnected</code> event",
+          "description": "`gattserverdisconnected` event",
           "spec_url": "https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothdeviceeventhandlers-ongattserverdisconnected",
           "tags": [
             "web-features:web-bluetooth"
@@ -126,7 +128,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +170,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -208,7 +212,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BluetoothRemoteGATTCharacteristic.json b/api/BluetoothRemoteGATTCharacteristic.json
index 31236b44e46f4b..eae6394d271d64 100644
--- a/api/BluetoothRemoteGATTCharacteristic.json
+++ b/api/BluetoothRemoteGATTCharacteristic.json
@@ -44,8 +44,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/1100993"
-          }
+            "impl_url": "https://crbug.com/40703318"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -55,7 +56,7 @@
       },
       "characteristicvaluechanged_event": {
         "__compat": {
-          "description": "<code>characteristicvaluechanged</code> event",
+          "description": "`characteristicvaluechanged` event",
           "spec_url": [
             "https://webbluetoothcg.github.io/web-bluetooth/#eventdef-bluetoothremotegattcharacteristic-characteristicvaluechanged",
             "https://webbluetoothcg.github.io/web-bluetooth/#dom-characteristiceventhandlers-oncharacteristicvaluechanged"
@@ -88,7 +89,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -129,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -170,7 +173,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -211,7 +215,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -252,7 +257,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -293,7 +299,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -334,7 +341,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -375,7 +383,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -416,7 +425,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -457,7 +467,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -495,7 +506,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -536,7 +548,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -577,7 +590,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BluetoothRemoteGATTDescriptor.json b/api/BluetoothRemoteGATTDescriptor.json
index b15729149564ee..f886c20932fd0c 100644
--- a/api/BluetoothRemoteGATTDescriptor.json
+++ b/api/BluetoothRemoteGATTDescriptor.json
@@ -46,8 +46,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/1100993"
-          }
+            "impl_url": "https://crbug.com/40703318"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -89,7 +90,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -132,7 +134,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -175,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -218,7 +222,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -261,7 +266,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BluetoothRemoteGATTServer.json b/api/BluetoothRemoteGATTServer.json
index 0230eb8b5a56ee..1388bc6080f923 100644
--- a/api/BluetoothRemoteGATTServer.json
+++ b/api/BluetoothRemoteGATTServer.json
@@ -44,8 +44,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/1100993"
-          }
+            "impl_url": "https://crbug.com/40703318"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -85,7 +86,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -126,7 +128,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +170,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -208,7 +212,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -249,7 +254,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -290,7 +296,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BluetoothRemoteGATTService.json b/api/BluetoothRemoteGATTService.json
index 1dea36a994f1e7..437e094d484940 100644
--- a/api/BluetoothRemoteGATTService.json
+++ b/api/BluetoothRemoteGATTService.json
@@ -44,8 +44,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/1100993"
-          }
+            "impl_url": "https://crbug.com/40703318"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -85,7 +86,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -126,7 +128,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +170,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -208,7 +212,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -249,7 +254,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BluetoothUUID.json b/api/BluetoothUUID.json
index 3c15298f879280..e815a4ae40fe66 100644
--- a/api/BluetoothUUID.json
+++ b/api/BluetoothUUID.json
@@ -44,8 +44,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/1100993"
-          }
+            "impl_url": "https://crbug.com/40703318"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -55,7 +56,7 @@
       },
       "canonicalUUID_static": {
         "__compat": {
-          "description": "<code>canonicalUUID()</code> static method",
+          "description": "`canonicalUUID()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BluetoothUUID/canonicalUUID_static",
           "spec_url": "https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothuuid-canonicaluuid",
           "tags": [
@@ -86,7 +87,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -97,7 +99,7 @@
       },
       "getCharacteristic_static": {
         "__compat": {
-          "description": "<code>getCharacteristic()</code> static method",
+          "description": "`getCharacteristic()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BluetoothUUID/getCharacteristic_static",
           "spec_url": "https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothuuid-getcharacteristic",
           "tags": [
@@ -128,7 +130,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,7 +142,7 @@
       },
       "getDescriptor_static": {
         "__compat": {
-          "description": "<code>getDescriptor()</code> static method",
+          "description": "`getDescriptor()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BluetoothUUID/getDescriptor_static",
           "spec_url": "https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothuuid-getdescriptor",
           "tags": [
@@ -170,7 +173,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -181,7 +185,7 @@
       },
       "getService_static": {
         "__compat": {
-          "description": "<code>getService()</code> static method",
+          "description": "`getService()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BluetoothUUID/getService_static",
           "spec_url": "https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothuuid-getservice",
           "tags": [
@@ -212,7 +216,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BroadcastChannel.json b/api/BroadcastChannel.json
index 0fa8c210eea7a9..478d27551f17f3 100644
--- a/api/BroadcastChannel.json
+++ b/api/BroadcastChannel.json
@@ -34,12 +34,9 @@
               "version_added": "18.0.0"
             },
             {
-              "alternative_name": "worker_threads.BroadcastChannel",
               "version_added": "15.4.0",
-              "notes": [
-                "Experimental implementation",
-                "Must be imported using either <code>require('worker_threads')</code> or <code>import * from 'worker_threads'</code>."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `worker_threads` module."
             }
           ],
           "oculus": "mirror",
@@ -50,7 +47,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -60,7 +58,7 @@
       },
       "BroadcastChannel": {
         "__compat": {
-          "description": "<code>BroadcastChannel()</code> constructor",
+          "description": "`BroadcastChannel()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BroadcastChannel/BroadcastChannel",
           "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#dom-broadcastchannel-dev",
           "tags": [
@@ -99,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -148,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,7 +159,7 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BroadcastChannel/message_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-message",
@@ -201,7 +201,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,7 +213,7 @@
       },
       "messageerror_event": {
         "__compat": {
-          "description": "<code>messageerror</code> event",
+          "description": "`messageerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/BroadcastChannel/messageerror_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-messageerror",
@@ -256,7 +257,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -305,7 +307,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -354,7 +357,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/BrowserCaptureMediaStreamTrack.json b/api/BrowserCaptureMediaStreamTrack.json
index 26f9504e02d096..67f66e70d24cf5 100644
--- a/api/BrowserCaptureMediaStreamTrack.json
+++ b/api/BrowserCaptureMediaStreamTrack.json
@@ -26,7 +26,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -60,7 +61,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -95,7 +97,44 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "restrictTo": {
+        "__compat": {
+          "spec_url": "https://screen-share.github.io/element-capture/#dom-browsercapturemediastreamtrack-restrictto",
+          "support": {
+            "chrome": {
+              "version_added": "132"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/BufferedChangeEvent.json b/api/BufferedChangeEvent.json
index 497b027bb2b99d..0e4ad8a52e2099 100644
--- a/api/BufferedChangeEvent.json
+++ b/api/BufferedChangeEvent.json
@@ -26,7 +26,8 @@
             "version_added": "17.1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -36,7 +37,7 @@
       },
       "BufferedChangeEvent": {
         "__compat": {
-          "description": "<code>BufferedChangeEvent()</code> constructor",
+          "description": "`BufferedChangeEvent()` constructor",
           "spec_url": "https://w3c.github.io/media-source/#dom-bufferedchangeevent-constructor",
           "support": {
             "chrome": {
@@ -61,7 +62,8 @@
               "version_added": "17.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -96,7 +98,8 @@
               "version_added": "17.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -131,7 +134,8 @@
               "version_added": "17.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ByteLengthQueuingStrategy.json b/api/ByteLengthQueuingStrategy.json
index c7ef4d3d924f97..6af260a64c9a75 100644
--- a/api/ByteLengthQueuingStrategy.json
+++ b/api/ByteLengthQueuingStrategy.json
@@ -31,11 +31,8 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -46,7 +43,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,7 +54,7 @@
       },
       "ByteLengthQueuingStrategy": {
         "__compat": {
-          "description": "<code>ByteLengthQueuingStrategy()</code> constructor",
+          "description": "`ByteLengthQueuingStrategy()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ByteLengthQueuingStrategy/ByteLengthQueuingStrategy",
           "spec_url": "https://streams.spec.whatwg.org/#blqs-constructor",
           "tags": [
@@ -91,7 +89,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,7 +135,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -181,7 +181,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CDATASection.json b/api/CDATASection.json
index 4330bf13660b2c..0ce068de32295d 100644
--- a/api/CDATASection.json
+++ b/api/CDATASection.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CDATASection",
         "spec_url": "https://dom.spec.whatwg.org/#interface-cdatasection",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/CSPViolationReportBody.json b/api/CSPViolationReportBody.json
index cdb968ca8a48ac..1db95b950d5d51 100644
--- a/api/CSPViolationReportBody.json
+++ b/api/CSPViolationReportBody.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody",
         "spec_url": "https://w3c.github.io/webappsec-csp/#cspviolationreportbody",
+        "tags": [
+          "web-features:csp"
+        ],
         "support": {
           "chrome": {
             "version_added": "74"
@@ -38,7 +41,8 @@
           "samsunginternet_android": {
             "version_added": "10.0"
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,7 +52,11 @@
       },
       "blockedURL": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/blockedURL",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-blockedurl",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -76,7 +84,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,7 +96,11 @@
       },
       "columnNumber": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/columnNumber",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-columnnumber",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -115,7 +128,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,7 +140,11 @@
       },
       "disposition": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/disposition",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-disposition",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -154,7 +172,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -165,7 +184,11 @@
       },
       "documentURL": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/documentURL",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-documenturl",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -193,7 +216,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -204,7 +228,11 @@
       },
       "effectiveDirective": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/effectiveDirective",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-effectivedirective",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -232,7 +260,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -243,7 +272,11 @@
       },
       "lineNumber": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/lineNumber",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-linenumber",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -271,7 +304,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -282,7 +316,11 @@
       },
       "originalPolicy": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/originalPolicy",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-originalpolicy",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -310,7 +348,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -321,7 +360,11 @@
       },
       "referrer": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/referrer",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-referrer",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -349,7 +392,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,7 +404,11 @@
       },
       "sample": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/sample",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-sample",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -388,7 +436,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -399,7 +448,11 @@
       },
       "sourceFile": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/sourceFile",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-sourcefile",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -427,7 +480,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -438,7 +492,11 @@
       },
       "statusCode": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/statusCode",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-statuscode",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -466,7 +524,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -477,6 +536,11 @@
       },
       "toJSON": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSPViolationReportBody/toJSON",
+          "spec_url": "https://w3c.github.io/webappsec-csp/#dom-cspviolationreportbody-tojson",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -504,7 +568,8 @@
             "samsunginternet_android": {
               "version_added": "10.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSS.json b/api/CSS.json
index 10145c60aaa716..f047b616138a8b 100644
--- a/api/CSS.json
+++ b/api/CSS.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS",
         "spec_url": "https://drafts.csswg.org/cssom/#namespacedef-css",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "28"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,9 +41,12 @@
       },
       "Hz_static": {
         "__compat": {
-          "description": "<code>Hz()</code> static method",
+          "description": "`Hz()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-hz",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,9 +81,12 @@
       },
       "Q_static": {
         "__compat": {
-          "description": "<code>Q()</code> static method",
+          "description": "`Q()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-q",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,8 +121,11 @@
       },
       "cap_static": {
         "__compat": {
-          "description": "<code>cap()</code> static method",
+          "description": "`cap()` static method",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-cap",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -133,7 +148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,9 +160,12 @@
       },
       "ch_static": {
         "__compat": {
-          "description": "<code>ch()</code> static method",
+          "description": "`ch()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-ch",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -169,7 +188,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,9 +200,12 @@
       },
       "cm_static": {
         "__compat": {
-          "description": "<code>cm()</code> static method",
+          "description": "`cm()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-cm",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -205,7 +228,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -216,9 +240,12 @@
       },
       "cqb_static": {
         "__compat": {
-          "description": "<code>cbq()</code> static method",
+          "description": "`cbq()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-cqb",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -241,7 +268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -252,9 +280,12 @@
       },
       "cqh_static": {
         "__compat": {
-          "description": "<code>cqh()</code> static method",
+          "description": "`cqh()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-cqh",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -277,7 +308,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -288,9 +320,12 @@
       },
       "cqi_static": {
         "__compat": {
-          "description": "<code>cqi()</code> static method",
+          "description": "`cqi()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-cqi",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -313,7 +348,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -324,9 +360,12 @@
       },
       "cqmax_static": {
         "__compat": {
-          "description": "<code>cqmax()</code> static method",
+          "description": "`cqmax()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-cqmax",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -349,7 +388,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,9 +400,12 @@
       },
       "cqmin_static": {
         "__compat": {
-          "description": "<code>cqmin()</code> static method",
+          "description": "`cqmin()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-cqmin",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -385,7 +428,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -396,9 +440,12 @@
       },
       "cqw_static": {
         "__compat": {
-          "description": "<code>cqw()</code> static method",
+          "description": "`cqw()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-cqw",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -421,7 +468,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,9 +480,12 @@
       },
       "deg_static": {
         "__compat": {
-          "description": "<code>deg()</code> static method",
+          "description": "`deg()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-deg",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -457,7 +508,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -468,9 +520,12 @@
       },
       "dpcm_static": {
         "__compat": {
-          "description": "<code>dpqm()</code> static method",
+          "description": "`dpqm()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-dpcm",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -493,7 +548,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -504,9 +560,12 @@
       },
       "dpi_static": {
         "__compat": {
-          "description": "<code>dpi()</code> static method",
+          "description": "`dpi()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-dpi",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -529,7 +588,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -540,9 +600,12 @@
       },
       "dppx_static": {
         "__compat": {
-          "description": "<code>dppx()</code> static method",
+          "description": "`dppx()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-dppx",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -565,7 +628,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -576,9 +640,12 @@
       },
       "dvb_static": {
         "__compat": {
-          "description": "<code>dvb()</code> static method",
+          "description": "`dvb()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-dvb",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -601,7 +668,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -612,9 +680,12 @@
       },
       "dvh_static": {
         "__compat": {
-          "description": "<code>dvh()</code> static method",
+          "description": "`dvh()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-dvh",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -637,7 +708,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -648,9 +720,12 @@
       },
       "dvi_static": {
         "__compat": {
-          "description": "<code>dvi()</code> static method",
+          "description": "`dvi()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-dvi",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -673,7 +748,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -684,9 +760,12 @@
       },
       "dvmax_static": {
         "__compat": {
-          "description": "<code>dvmax()</code> static method",
+          "description": "`dvmax()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-dvmax",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -709,7 +788,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -720,9 +800,12 @@
       },
       "dvmin_static": {
         "__compat": {
-          "description": "<code>dvmin()</code> static method",
+          "description": "`dvmin()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-dvmin",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -745,7 +828,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -756,9 +840,12 @@
       },
       "dvw_static": {
         "__compat": {
-          "description": "<code>dvw()</code> static method",
+          "description": "`dvw()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-dvw",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -781,7 +868,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -792,9 +880,12 @@
       },
       "em_static": {
         "__compat": {
-          "description": "<code>em()</code> static method",
+          "description": "`em()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-em",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -817,7 +908,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -828,9 +920,12 @@
       },
       "escape_static": {
         "__compat": {
-          "description": "<code>escape()</code> static method",
+          "description": "`escape()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/escape_static",
           "spec_url": "https://drafts.csswg.org/cssom/#the-css.escape()-method",
+          "tags": [
+            "web-features:css-escape"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -852,7 +947,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -863,9 +959,12 @@
       },
       "ex_static": {
         "__compat": {
-          "description": "<code>ex()</code> static method",
+          "description": "`ex()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-ex",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -888,7 +987,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -899,9 +999,12 @@
       },
       "fr_static": {
         "__compat": {
-          "description": "<code>fr()</code> static method",
+          "description": "`fr()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-fr",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -924,7 +1027,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -935,9 +1039,12 @@
       },
       "grad_static": {
         "__compat": {
-          "description": "<code>grad()</code> static method",
+          "description": "`grad()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-grad",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -960,7 +1067,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -971,7 +1079,7 @@
       },
       "highlights_static": {
         "__compat": {
-          "description": "<code>highlights</code> static property",
+          "description": "`highlights` static property",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/highlights_static",
           "spec_url": "https://drafts.csswg.org/css-highlight-api/#dom-css-highlights",
           "tags": [
@@ -999,7 +1107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1010,8 +1119,11 @@
       },
       "ic_static": {
         "__compat": {
-          "description": "<code>ic()</code> static method",
+          "description": "`ic()` static method",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-ic",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -1034,7 +1146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1045,9 +1158,12 @@
       },
       "in_static": {
         "__compat": {
-          "description": "<code>in()</code> static method",
+          "description": "`in()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-in",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1070,7 +1186,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1081,9 +1198,12 @@
       },
       "kHz_static": {
         "__compat": {
-          "description": "<code>kHz()</code> static method",
+          "description": "`kHz()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-khz",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1106,7 +1226,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1117,8 +1238,11 @@
       },
       "lh_static": {
         "__compat": {
-          "description": "<code>lh()</code> static method",
+          "description": "`lh()` static method",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-lh",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -1141,7 +1265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1152,9 +1277,12 @@
       },
       "lvb_static": {
         "__compat": {
-          "description": "<code>lvb()</code> static method",
+          "description": "`lvb()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-lvb",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -1177,7 +1305,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1188,9 +1317,12 @@
       },
       "lvh_static": {
         "__compat": {
-          "description": "<code>lvh()</code> static method",
+          "description": "`lvh()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-lvh",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -1213,7 +1345,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1224,9 +1357,12 @@
       },
       "lvi_static": {
         "__compat": {
-          "description": "<code>lvi()</code> static method",
+          "description": "`lvi()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-lvi",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -1249,7 +1385,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1260,9 +1397,12 @@
       },
       "lvmax_static": {
         "__compat": {
-          "description": "<code>lvmax()</code> static method",
+          "description": "`lvmax()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-lvmax",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -1285,7 +1425,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1296,9 +1437,12 @@
       },
       "lvmin_static": {
         "__compat": {
-          "description": "<code>lvmin()</code> static method",
+          "description": "`lvmin()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-lvmin",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -1321,7 +1465,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1332,9 +1477,12 @@
       },
       "lvw_static": {
         "__compat": {
-          "description": "<code>lvw()</code> static method",
+          "description": "`lvw()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-lvw",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -1357,7 +1505,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1368,9 +1517,12 @@
       },
       "mm_static": {
         "__compat": {
-          "description": "<code>mm()</code> static method",
+          "description": "`mm()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-mm",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1393,7 +1545,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1404,9 +1557,12 @@
       },
       "ms_static": {
         "__compat": {
-          "description": "<code>ms()</code> static method",
+          "description": "`ms()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-ms",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1429,7 +1585,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1440,9 +1597,12 @@
       },
       "number_static": {
         "__compat": {
-          "description": "<code>number()</code> static method",
+          "description": "`number()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-number",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1465,7 +1625,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1476,7 +1637,7 @@
       },
       "paintWorklet_static": {
         "__compat": {
-          "description": "<code>paintWorklet</code> static property",
+          "description": "`paintWorklet` static property",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/paintWorklet_static",
           "spec_url": "https://drafts.css-houdini.org/css-paint-api/#ref-for-dom-css-paintworklet",
           "tags": [
@@ -1505,7 +1666,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1516,9 +1678,12 @@
       },
       "pc_static": {
         "__compat": {
-          "description": "<code>pc()</code> static method",
+          "description": "`pc()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-pc",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1541,7 +1706,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1552,9 +1718,12 @@
       },
       "percent_static": {
         "__compat": {
-          "description": "<code>percent()</code> static method",
+          "description": "`percent()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-percent",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1577,7 +1746,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1588,9 +1758,12 @@
       },
       "pt_static": {
         "__compat": {
-          "description": "<code>pt()</code> static method",
+          "description": "`pt()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-pt",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1613,7 +1786,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1624,9 +1798,12 @@
       },
       "px_static": {
         "__compat": {
-          "description": "<code>px()</code> static method",
+          "description": "`px()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-px",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1649,7 +1826,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1660,9 +1838,12 @@
       },
       "rad_static": {
         "__compat": {
-          "description": "<code>rad()</code> static method",
+          "description": "`rad()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-rad",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1685,7 +1866,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1696,8 +1878,11 @@
       },
       "rcap_static": {
         "__compat": {
-          "description": "<code>rcap()</code> static method",
+          "description": "`rcap()` static method",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-rcap",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -1720,7 +1905,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1731,8 +1917,11 @@
       },
       "rch_static": {
         "__compat": {
-          "description": "<code>rch()</code> static method",
+          "description": "`rch()` static method",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-rch",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -1755,7 +1944,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1766,7 +1956,7 @@
       },
       "registerProperty_static": {
         "__compat": {
-          "description": "<code>registerProperty()</code> static method",
+          "description": "`registerProperty()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/registerProperty_static",
           "spec_url": "https://drafts.css-houdini.org/css-properties-values-api/#the-registerproperty-function",
           "tags": [
@@ -1793,7 +1983,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1804,9 +1995,12 @@
       },
       "rem_static": {
         "__compat": {
-          "description": "<code>rem()</code> static method",
+          "description": "`rem()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-rem",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1829,7 +2023,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1840,8 +2035,11 @@
       },
       "rex_static": {
         "__compat": {
-          "description": "<code>rex()</code> static method",
+          "description": "`rex()` static method",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-rex",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -1864,7 +2062,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1875,8 +2074,11 @@
       },
       "ric_static": {
         "__compat": {
-          "description": "<code>ric()</code> static method",
+          "description": "`ric()` static method",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-ric",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -1899,7 +2101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1910,8 +2113,11 @@
       },
       "rlh_static": {
         "__compat": {
-          "description": "<code>rlh()</code> static method",
+          "description": "`rlh()` static method",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-rlh",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -1934,7 +2140,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1945,9 +2152,12 @@
       },
       "s_static": {
         "__compat": {
-          "description": "<code>s()</code> static method",
+          "description": "`s()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-s",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1970,7 +2180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1981,9 +2192,12 @@
       },
       "supports_static": {
         "__compat": {
-          "description": "<code>supports()</code> static method",
+          "description": "`supports()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/supports_static",
           "spec_url": "https://drafts.csswg.org/css-conditional-3/#ref-for-dom-css-supports",
+          "tags": [
+            "web-features:css-supports"
+          ],
           "support": {
             "chrome": [
               {
@@ -2039,7 +2253,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2050,9 +2265,12 @@
       },
       "svb_static": {
         "__compat": {
-          "description": "<code>svb()</code> static method",
+          "description": "`svb()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-svb",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -2075,7 +2293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2086,9 +2305,12 @@
       },
       "svh_static": {
         "__compat": {
-          "description": "<code>svh()</code> static method",
+          "description": "`svh()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-svh",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -2111,7 +2333,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2122,9 +2345,12 @@
       },
       "svi_static": {
         "__compat": {
-          "description": "<code>svi()</code> static method",
+          "description": "`svi()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-svi",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -2147,7 +2373,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2158,9 +2385,12 @@
       },
       "svmax_static": {
         "__compat": {
-          "description": "<code>svmax()</code> static method",
+          "description": "`svmax()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-svmax",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -2183,7 +2413,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2194,9 +2425,12 @@
       },
       "svmin_static": {
         "__compat": {
-          "description": "<code>svmin()</code> static method",
+          "description": "`svmin()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-svmin",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -2219,7 +2453,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2230,9 +2465,12 @@
       },
       "svw_static": {
         "__compat": {
-          "description": "<code>svw()</code> static method",
+          "description": "`svw()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-svw",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -2255,7 +2493,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2266,9 +2505,12 @@
       },
       "turn_static": {
         "__compat": {
-          "description": "<code>turn()</code> static method",
+          "description": "`turn()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-turn",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -2291,7 +2533,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2302,9 +2545,12 @@
       },
       "vb_static": {
         "__compat": {
-          "description": "<code>vb()</code> static method",
+          "description": "`vb()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-vb",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -2328,7 +2574,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2339,9 +2586,12 @@
       },
       "vh_static": {
         "__compat": {
-          "description": "<code>vh()</code> static method",
+          "description": "`vh()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-vh",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -2364,7 +2614,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2375,9 +2626,12 @@
       },
       "vi_static": {
         "__compat": {
-          "description": "<code>vi()</code> static method",
+          "description": "`vi()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-vi",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -2401,7 +2655,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2412,9 +2667,12 @@
       },
       "vmax_static": {
         "__compat": {
-          "description": "<code>vmax()</code> static method",
+          "description": "`vmax()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-vmax",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -2437,7 +2695,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2448,9 +2707,12 @@
       },
       "vmin_static": {
         "__compat": {
-          "description": "<code>vmin()</code> static method",
+          "description": "`vmin()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-vmin",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -2473,7 +2735,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2484,9 +2747,12 @@
       },
       "vw_static": {
         "__compat": {
-          "description": "<code>vw()</code> static method",
+          "description": "`vw()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSS/factory_functions_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-css-vw",
+          "tags": [
+            "web-features:numeric-factory-functions"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -2509,7 +2775,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSAnimation.json b/api/CSSAnimation.json
index 6a67b30b19946f..c5ba9ee8af3b47 100644
--- a/api/CSSAnimation.json
+++ b/api/CSSAnimation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSAnimation",
         "spec_url": "https://drafts.csswg.org/css-animations-2/#the-CSSAnimation-interface",
+        "tags": [
+          "web-features:animations-css"
+        ],
         "support": {
           "chrome": {
             "version_added": "84"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSAnimation/animationName",
           "spec_url": "https://drafts.csswg.org/css-animations-2/#dom-cssanimation-animationname",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSConditionRule.json b/api/CSSConditionRule.json
index cbfbdec2cc9127..41fbfceed79887 100644
--- a/api/CSSConditionRule.json
+++ b/api/CSSConditionRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSConditionRule",
         "spec_url": "https://drafts.csswg.org/css-conditional-3/#the-cssconditionrule-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "56"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSConditionRule/conditionText",
           "spec_url": "https://drafts.csswg.org/css-conditional-3/#dom-cssconditionrule-conditiontext",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSContainerRule.json b/api/CSSContainerRule.json
index e5f98c67aa3f2b..d432ac6a83741d 100644
--- a/api/CSSContainerRule.json
+++ b/api/CSSContainerRule.json
@@ -3,7 +3,7 @@
     "CSSContainerRule": {
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSContainerRule",
-        "spec_url": "https://drafts.csswg.org/css-contain-3/#the-csscontainerrule-interface",
+        "spec_url": "https://drafts.csswg.org/css-conditional-5/#the-csscontainerrule-interface",
         "tags": [
           "web-features:container-queries"
         ],
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,7 +40,7 @@
       "containerName": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSContainerRule/containerName",
-          "spec_url": "https://drafts.csswg.org/css-contain-3/#dom-csscontainerrule-containername",
+          "spec_url": "https://drafts.csswg.org/css-conditional-5/#dom-csscontainerrule-containername",
           "tags": [
             "web-features:container-queries"
           ],
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -76,7 +78,7 @@
       "containerQuery": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSContainerRule/containerQuery",
-          "spec_url": "https://drafts.csswg.org/css-contain-3/#dom-csscontainerrule-containerquery",
+          "spec_url": "https://drafts.csswg.org/css-conditional-5/#dom-csscontainerrule-containerquery",
           "tags": [
             "web-features:container-queries"
           ],
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSCounterStyleRule.json b/api/CSSCounterStyleRule.json
index 373cfaee1194da..9834261472bd85 100644
--- a/api/CSSCounterStyleRule.json
+++ b/api/CSSCounterStyleRule.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -323,7 +331,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,7 +369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -397,7 +407,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -434,7 +445,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSFontFaceRule.json b/api/CSSFontFaceRule.json
index cd46918fb50234..929f33f399f1af 100644
--- a/api/CSSFontFaceRule.json
+++ b/api/CSSFontFaceRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSFontFaceRule",
         "spec_url": "https://drafts.csswg.org/css-fonts/#om-fontface",
+        "tags": [
+          "web-features:font-face"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSFontFaceRule/style",
           "spec_url": "https://drafts.csswg.org/css-fonts/#dom-cssfontfacerule-style",
+          "tags": [
+            "web-features:font-face"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSFontFeatureValuesMap.json b/api/CSSFontFeatureValuesMap.json
new file mode 100644
index 00000000000000..e95e5bb413a3cd
--- /dev/null
+++ b/api/CSSFontFeatureValuesMap.json
@@ -0,0 +1,448 @@
+{
+  "api": {
+    "CSSFontFeatureValuesMap": {
+      "__compat": {
+        "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+        "tags": [
+          "web-features:font-variant-alternates"
+        ],
+        "support": {
+          "chrome": {
+            "version_added": "111"
+          },
+          "chrome_android": "mirror",
+          "edge": "mirror",
+          "firefox": {
+            "version_added": false
+          },
+          "firefox_android": "mirror",
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
+        },
+        "status": {
+          "experimental": true,
+          "standard_track": true,
+          "deprecated": false
+        }
+      },
+      "clear": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "delete": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "entries": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "forEach": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "get": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "has": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "keys": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "set": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#dom-cssfontfeaturevaluesmap-set",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "size": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "values": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "@@iterator": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesmap",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "111"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/api/CSSFontFeatureValuesRule.json b/api/CSSFontFeatureValuesRule.json
index ba801644972261..660179b3532672 100644
--- a/api/CSSFontFeatureValuesRule.json
+++ b/api/CSSFontFeatureValuesRule.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +40,9 @@
       "annotation": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-fonts/#dom-cssfontfeaturevaluesrule-annotation",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
           "support": {
             "chrome": {
               "version_added": "111"
@@ -60,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -72,6 +77,9 @@
       "characterVariant": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-fonts/#dom-cssfontfeaturevaluesrule-charactervariant",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
           "support": {
             "chrome": {
               "version_added": "111"
@@ -93,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -130,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,6 +152,9 @@
       "ornaments": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-fonts/#dom-cssfontfeaturevaluesrule-ornaments",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
           "support": {
             "chrome": {
               "version_added": "111"
@@ -163,7 +176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -175,6 +189,9 @@
       "styleset": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-fonts/#dom-cssfontfeaturevaluesrule-styleset",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
           "support": {
             "chrome": {
               "version_added": "111"
@@ -196,7 +213,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -208,6 +226,9 @@
       "stylistic": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-fonts/#dom-cssfontfeaturevaluesrule-stylistic",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
           "support": {
             "chrome": {
               "version_added": "111"
@@ -229,7 +250,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -241,6 +263,9 @@
       "swash": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-fonts/#dom-cssfontfeaturevaluesrule-swash",
+          "tags": [
+            "web-features:font-variant-alternates"
+          ],
           "support": {
             "chrome": {
               "version_added": "111"
@@ -262,7 +287,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/CSSFontPaletteValuesRule.json b/api/CSSFontPaletteValuesRule.json
index 2aef66b55a0077..a89656ab3ce1f2 100644
--- a/api/CSSFontPaletteValuesRule.json
+++ b/api/CSSFontPaletteValuesRule.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSGroupingRule.json b/api/CSSGroupingRule.json
index a41138ae4326ce..1c4aec3f071771 100644
--- a/api/CSSGroupingRule.json
+++ b/api/CSSGroupingRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSGroupingRule",
         "spec_url": "https://drafts.csswg.org/cssom/#the-cssgroupingrule-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "45"
@@ -29,12 +32,13 @@
             {
               "version_added": "3",
               "partial_implementation": true,
-              "notes": "The <code>CSSGroupingRule</code> interface itself is not present, but many of the methods are available on various interfaces such as the <a href='https://developer.mozilla.org/docs/Web/API/CSSMediaRule'><code>CSSMediaRule</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/CSSPageRule'><code>CSSPageRule</code></a> interfaces."
+              "notes": "The `CSSGroupingRule` interface itself is not present, but many of the methods are available on various interfaces such as the [`CSSMediaRule`](https://developer.mozilla.org/docs/Web/API/CSSMediaRule) and [`CSSPageRule`](https://developer.mozilla.org/docs/Web/API/CSSPageRule) interfaces."
             }
           ],
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSGroupingRule/cssRules",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssgroupingrule-cssrules",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "45"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -82,6 +90,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSGroupingRule/deleteRule",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssgroupingrule-deleterule",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "45"
@@ -105,7 +116,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +130,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSGroupingRule/insertRule",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssgroupingrule-insertrule",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "45"
@@ -141,7 +156,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSImageValue.json b/api/CSSImageValue.json
index 5942845372e89e..6faa34131cb744 100644
--- a/api/CSSImageValue.json
+++ b/api/CSSImageValue.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSImageValue",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#imagevalue-objects",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/CSSImportRule.json b/api/CSSImportRule.json
index b439be51fb053c..f3d47719f8fd90 100644
--- a/api/CSSImportRule.json
+++ b/api/CSSImportRule.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,7 +159,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -167,7 +171,7 @@
       },
       "styleSheet": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSImportRule/stylesheet",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSImportRule/styleSheet",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssimportrule-stylesheet",
           "tags": [
             "web-features:import"
@@ -199,7 +203,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,6 +217,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSImportRule/supportsText",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssimportrule-supportstext",
+          "tags": [
+            "web-features:supports"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -233,7 +241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSKeyframeRule.json b/api/CSSKeyframeRule.json
index 26421f51264d53..f1cf846d7713f7 100644
--- a/api/CSSKeyframeRule.json
+++ b/api/CSSKeyframeRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframeRule",
         "spec_url": "https://drafts.csswg.org/css-animations/#interface-csskeyframerule",
+        "tags": [
+          "web-features:animations-css"
+        ],
         "support": {
           "chrome": [
             {
@@ -83,7 +86,8 @@
               "version_added": "1",
               "version_removed": "4.4.3"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -95,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframeRule/keyText",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-csskeyframerule-keytext",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -124,7 +131,8 @@
               "version_added": "4"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,6 +145,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframeRule/style",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-csskeyframerule-style",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -164,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSKeyframesRule.json b/api/CSSKeyframesRule.json
index b1c9d13140050b..16634114b71199 100644
--- a/api/CSSKeyframesRule.json
+++ b/api/CSSKeyframesRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule",
         "spec_url": "https://drafts.csswg.org/css-animations/#interface-csskeyframesrule",
+        "tags": [
+          "web-features:animations-css"
+        ],
         "support": {
           "chrome": [
             {
@@ -93,7 +96,8 @@
               "version_added": "1",
               "version_removed": "4.4.3"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -105,6 +109,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/appendRule",
           "spec_url": "https://drafts.csswg.org/css-animations/#interface-csskeyframesrule-appendrule",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -174,7 +181,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -187,6 +195,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/cssRules",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-csskeyframesrule-cssrules",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -214,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -227,6 +239,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/deleteRule",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-csskeyframesrule-deleterule",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -254,7 +269,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -267,6 +283,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/findRule",
           "spec_url": "https://drafts.csswg.org/css-animations/#interface-csskeyframesrule-findrule",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -294,7 +313,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -305,7 +325,11 @@
       },
       "length": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/length",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-csskeyframesrule-length",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "123"
@@ -327,7 +351,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -340,6 +365,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/name",
           "spec_url": "https://drafts.csswg.org/css-animations/#dom-csskeyframesrule-name",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -367,7 +395,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSKeywordValue.json b/api/CSSKeywordValue.json
index 907d688c8c155c..0b03fc47c821ba 100644
--- a/api/CSSKeywordValue.json
+++ b/api/CSSKeywordValue.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeywordValue",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#keywordvalue-objects",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSKeywordValue": {
         "__compat": {
-          "description": "<code>CSSKeywordValue()</code> constructor",
+          "description": "`CSSKeywordValue()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeywordValue/CSSKeywordValue",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csskeywordvalue-csskeywordvalue",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeywordValue/value",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csskeywordvalue-value",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSLayerBlockRule.json b/api/CSSLayerBlockRule.json
index 5a9fa795a11654..d4f3c4f65cce43 100644
--- a/api/CSSLayerBlockRule.json
+++ b/api/CSSLayerBlockRule.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSLayerStatementRule.json b/api/CSSLayerStatementRule.json
index d7104e76b154e0..e919896c4ace51 100644
--- a/api/CSSLayerStatementRule.json
+++ b/api/CSSLayerStatementRule.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMarginRule.json b/api/CSSMarginRule.json
new file mode 100644
index 00000000000000..b63515be60346e
--- /dev/null
+++ b/api/CSSMarginRule.json
@@ -0,0 +1,121 @@
+{
+  "api": {
+    "CSSMarginRule": {
+      "__compat": {
+        "spec_url": "https://drafts.csswg.org/cssom/#the-cssmarginrule-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
+        "support": {
+          "chrome": {
+            "version_added": "131"
+          },
+          "chrome_android": {
+            "version_added": false
+          },
+          "edge": "mirror",
+          "firefox": {
+            "version_added": false
+          },
+          "firefox_android": "mirror",
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
+        },
+        "status": {
+          "experimental": true,
+          "standard_track": true,
+          "deprecated": false
+        }
+      },
+      "name": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/cssom/#dom-cssmarginrule-name",
+          "tags": [
+            "web-features:css-object-model"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "131"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "style": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/cssom/#dom-cssmarginrule-style",
+          "tags": [
+            "web-features:css-object-model"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "131"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/api/CSSMathClamp.json b/api/CSSMathClamp.json
index d1701e8623a00e..8b611bbaead25d 100644
--- a/api/CSSMathClamp.json
+++ b/api/CSSMathClamp.json
@@ -3,6 +3,9 @@
     "CSSMathClamp": {
       "__compat": {
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssmathclamp",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "100"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,8 +39,11 @@
       },
       "CSSMathClamp": {
         "__compat": {
-          "description": "<code>CSSMathClamp()</code> constructor",
+          "description": "`CSSMathClamp()` constructor",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathclamp-cssmathclamp",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,6 +79,9 @@
       "lower": {
         "__compat": {
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathclamp-lower",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -93,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,6 +117,9 @@
       "upper": {
         "__compat": {
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathclamp-upper",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -127,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,6 +155,9 @@
       "value": {
         "__compat": {
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathclamp-value",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -161,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMathInvert.json b/api/CSSMathInvert.json
index abdce44ca516bf..ac1f92d765204f 100644
--- a/api/CSSMathInvert.json
+++ b/api/CSSMathInvert.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathInvert",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssmathinvert",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSMathInvert": {
         "__compat": {
-          "description": "<code>CSSMathInvert()</code> constructor",
+          "description": "`CSSMathInvert()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathInvert/CSSMathInvert",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathinvert-cssmathinvert",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathInvert/value",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathinvert-value",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMathMax.json b/api/CSSMathMax.json
index 00047aafcabcec..9bb7a786f8ada9 100644
--- a/api/CSSMathMax.json
+++ b/api/CSSMathMax.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathMax",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssmathmax",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSMathMax": {
         "__compat": {
-          "description": "<code>CSSMathMax()</code> constructor",
+          "description": "`CSSMathMax()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathMax/CSSMathMax",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathmax-cssmathmax",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathMax/values",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathmax-values",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMathMin.json b/api/CSSMathMin.json
index ae67629540ac37..fe68523c23cbb4 100644
--- a/api/CSSMathMin.json
+++ b/api/CSSMathMin.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathMin",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssmathmin",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSMathMin": {
         "__compat": {
-          "description": "<code>CSSMathMin()</code> constructor",
+          "description": "`CSSMathMin()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathMin/CSSMathMin",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathmin-cssmathmin",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathMin/values",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathmin-values",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMathNegate.json b/api/CSSMathNegate.json
index d0932ebb8a89a4..5e6d5accbdcd5d 100644
--- a/api/CSSMathNegate.json
+++ b/api/CSSMathNegate.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathNegate",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssmathnegate",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSMathNegate": {
         "__compat": {
-          "description": "<code>CSSMathNegate()</code> constructor",
+          "description": "`CSSMathNegate()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathNegate/CSSMathNegate",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathnegate-cssmathnegate",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathNegate/value",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathnegate-value",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMathProduct.json b/api/CSSMathProduct.json
index ba61fa739b5a58..1edecf330cf5fd 100644
--- a/api/CSSMathProduct.json
+++ b/api/CSSMathProduct.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathProduct",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssmathproduct",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSMathProduct": {
         "__compat": {
-          "description": "<code>CSSMathProduct()</code> constructor",
+          "description": "`CSSMathProduct()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathProduct/CSSMathProduct",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathproduct-cssmathproduct",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathProduct/values",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathproduct-values",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMathSum.json b/api/CSSMathSum.json
index e7e07133ea0169..02dd93f883bf39 100644
--- a/api/CSSMathSum.json
+++ b/api/CSSMathSum.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathSum",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssmathsum",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSMathSum": {
         "__compat": {
-          "description": "<code>CSSMathSum()</code> constructor",
+          "description": "`CSSMathSum()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathSum/CSSMathSum",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathsum-cssmathsum",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathSum/values",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathsum-values",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMathValue.json b/api/CSSMathValue.json
index b0aad10e56df33..6cc1fb71915827 100644
--- a/api/CSSMathValue.json
+++ b/api/CSSMathValue.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathValue",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#complex-numeric",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,6 +42,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMathValue/operator",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmathvalue-operator",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMatrixComponent.json b/api/CSSMatrixComponent.json
index 61e9bd69b11716..826fa1b5409d81 100644
--- a/api/CSSMatrixComponent.json
+++ b/api/CSSMatrixComponent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMatrixComponent",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssmatrixcomponent",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSMatrixComponent": {
         "__compat": {
-          "description": "<code>CSSMatrixComponent()</code> constructor",
+          "description": "`CSSMatrixComponent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMatrixComponent/CSSMatrixComponent",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmatrixcomponent-cssmatrixcomponent",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMatrixComponent/matrix",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssmatrixcomponent-matrix",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSMediaRule.json b/api/CSSMediaRule.json
index 367ba0ceca0c5c..d79416f56039ce 100644
--- a/api/CSSMediaRule.json
+++ b/api/CSSMediaRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMediaRule",
         "spec_url": "https://drafts.csswg.org/css-conditional-3/#the-cssmediarule-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -14,7 +17,7 @@
           },
           "firefox": {
             "version_added": "1",
-            "notes": "Before Firefox 20, <code>conditionText</code> could not be set."
+            "notes": "Before Firefox 20, `conditionText` could not be set."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -34,7 +37,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSMediaRule/media",
           "spec_url": "https://drafts.csswg.org/css-conditional-3/#dom-cssmediarule-media",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -75,7 +82,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSNamespaceRule.json b/api/CSSNamespaceRule.json
index 484c0280a161bf..7bd991561d2e9a 100644
--- a/api/CSSNamespaceRule.json
+++ b/api/CSSNamespaceRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNamespaceRule",
         "spec_url": "https://drafts.csswg.org/cssom/#the-cssnamespacerule-interface",
+        "tags": [
+          "web-features:namespace"
+        ],
         "support": {
           "chrome": {
             "version_added": "47"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNamespaceRule/namespaceURI",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssnamespacerule-namespaceuri",
+          "tags": [
+            "web-features:namespace"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNamespaceRule/prefix",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssnamespacerule-prefix",
+          "tags": [
+            "web-features:namespace"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSNestedDeclarations.json b/api/CSSNestedDeclarations.json
new file mode 100644
index 00000000000000..421b39df49661c
--- /dev/null
+++ b/api/CSSNestedDeclarations.json
@@ -0,0 +1,84 @@
+{
+  "api": {
+    "CSSNestedDeclarations": {
+      "__compat": {
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNestedDeclarations",
+        "spec_url": "https://drafts.csswg.org/css-nesting-1/#cssnesteddeclarations",
+        "tags": [
+          "web-features:nesting"
+        ],
+        "support": {
+          "chrome": {
+            "version_added": "130"
+          },
+          "chrome_android": "mirror",
+          "edge": "mirror",
+          "firefox": {
+            "version_added": "132"
+          },
+          "firefox_android": {
+            "version_added": false
+          },
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": "18.2"
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
+        },
+        "status": {
+          "experimental": false,
+          "standard_track": true,
+          "deprecated": false
+        }
+      },
+      "style": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNestedDeclarations/style",
+          "spec_url": "https://drafts.csswg.org/css-nesting-1/#dom-cssnesteddeclarations-style",
+          "tags": [
+            "web-features:nesting"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "130"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "132"
+            },
+            "firefox_android": {
+              "version_added": false
+            },
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "18.2"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/api/CSSNumericArray.json b/api/CSSNumericArray.json
index a5d546a3b613c1..89b7102cffe73c 100644
--- a/api/CSSNumericArray.json
+++ b/api/CSSNumericArray.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericArray",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssnumericarray",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,6 +40,9 @@
       },
       "entries": {
         "__compat": {
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -57,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -68,6 +76,9 @@
       },
       "forEach": {
         "__compat": {
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -89,7 +100,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,6 +112,9 @@
       },
       "keys": {
         "__compat": {
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -121,7 +136,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,6 +150,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericArray/length",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericarray-length",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -156,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -167,6 +187,9 @@
       },
       "values": {
         "__compat": {
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -188,7 +211,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,6 +224,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -221,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSNumericValue.json b/api/CSSNumericValue.json
index 30aef630efe5ff..746cb180956a42 100644
--- a/api/CSSNumericValue.json
+++ b/api/CSSNumericValue.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#numeric-value",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,6 +42,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/add",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-add",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,6 +81,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/div",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-div",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +120,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/equals",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-equals",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -130,7 +145,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,6 +159,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/max",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-max",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -165,7 +184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,6 +198,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/min",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-min",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -200,7 +223,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -213,6 +237,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/mul",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-mul",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -235,7 +262,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -246,9 +274,12 @@
       },
       "parse_static": {
         "__compat": {
-          "description": "<code>parse()</code> static method",
+          "description": "`parse()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/parse_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-parse",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66",
@@ -272,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -285,6 +317,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/sub",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-sub",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -307,7 +342,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -320,6 +356,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/to",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-to",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -342,7 +381,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -355,6 +395,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/toSum",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-tosum",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -377,7 +420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -390,6 +434,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSNumericValue/type",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssnumericvalue-type",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -412,7 +459,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSPageDescriptors.json b/api/CSSPageDescriptors.json
index 152501eeda60aa..5345d99a3f4bff 100644
--- a/api/CSSPageDescriptors.json
+++ b/api/CSSPageDescriptors.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors",
         "spec_url": "https://drafts.csswg.org/cssom/#csspagedescriptors",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#margin",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-margin",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#margin-bottom",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-margin-bottom",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#margin-left",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-margin-left",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#margin-right",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-margin-right",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -160,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -173,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#margin-top",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-margin-top",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -194,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -207,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#marginbottom",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-marginbottom",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -228,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -241,6 +269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#marginleft",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-marginleft",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -262,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -275,6 +307,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#marginright",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-marginright",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -296,7 +331,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -309,6 +345,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#margintop",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-margintop",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -330,7 +369,84 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "page-orientation": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#page-orientation",
+          "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-page-orientation",
+          "tags": [
+            "web-features:css-object-model"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": false
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "129"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "pageOrientation": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#pageorientation",
+          "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-pageorientation",
+          "tags": [
+            "web-features:css-object-model"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": false
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "129"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -343,6 +459,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors#size",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagedescriptors-size",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -364,7 +483,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/CSSPageRule.json b/api/CSSPageRule.json
index 27ba0ab7dad80a..144b880616101e 100644
--- a/api/CSSPageRule.json
+++ b/api/CSSPageRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageRule",
         "spec_url": "https://drafts.csswg.org/cssom/#the-csspagerule-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageRule/selectorText",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagerule-selectortext",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -74,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPageRule/style",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-csspagerule-style",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -116,7 +127,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,7 +138,10 @@
         },
         "type_CSSPageDescriptors": {
           "__compat": {
-            "description": "Type changed to <a href='https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors'><code>CSSPageDescriptors</code></a>",
+            "description": "Type changed to [`CSSPageDescriptors`](https://developer.mozilla.org/docs/Web/API/CSSPageDescriptors)",
+            "tags": [
+              "web-features:css-object-model"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -148,7 +163,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/CSSPerspective.json b/api/CSSPerspective.json
index 14c1eb650499ae..ed03e6dbf7d8a9 100644
--- a/api/CSSPerspective.json
+++ b/api/CSSPerspective.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPerspective",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssperspective",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSPerspective": {
         "__compat": {
-          "description": "<code>CSSPerspective()</code> constructor",
+          "description": "`CSSPerspective()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPerspective/CSSPerspective",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssperspective-cssperspective",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPerspective/length",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssperspective-length",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSPositionTryDescriptors.json b/api/CSSPositionTryDescriptors.json
index de791e83188d1d..81878eb4fce313 100644
--- a/api/CSSPositionTryDescriptors.json
+++ b/api/CSSPositionTryDescriptors.json
@@ -14,8 +14,15 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false,
-            "impl_url": "https://bugzil.la/1838746"
+            "version_added": "131",
+            "flags": [
+              {
+                "type": "preference",
+                "name": "layout.css.anchor-positioning.enabled",
+                "value_to_set": "true"
+              }
+            ],
+            "impl_url": "https://bugzil.la/1909346"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -29,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -51,8 +59,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -66,7 +81,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -89,8 +105,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -104,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -127,8 +151,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -142,7 +173,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -165,8 +197,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -180,7 +219,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -203,8 +243,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -218,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -241,8 +289,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -256,7 +311,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -279,8 +335,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -294,7 +357,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -317,8 +381,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -332,7 +403,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -355,8 +427,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -370,7 +449,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -393,8 +473,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -408,7 +495,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -431,8 +519,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -446,7 +541,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -469,8 +565,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -484,7 +587,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -507,8 +611,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -522,7 +633,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -545,8 +657,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -560,7 +679,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -583,8 +703,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -598,7 +725,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -621,8 +749,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -636,7 +771,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -659,8 +795,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -674,7 +817,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -697,8 +841,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -712,7 +863,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -735,8 +887,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -750,7 +909,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -773,8 +933,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -788,7 +955,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -811,8 +979,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -826,7 +1001,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -849,8 +1025,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -864,7 +1047,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -887,8 +1071,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -902,7 +1093,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -925,8 +1117,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -940,7 +1139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -963,8 +1163,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -978,7 +1185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1001,8 +1209,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1016,7 +1231,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1039,8 +1255,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1054,7 +1277,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1077,8 +1301,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1092,7 +1323,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1115,8 +1347,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1130,7 +1369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1153,8 +1393,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1168,7 +1415,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1191,8 +1439,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1206,7 +1461,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1229,8 +1485,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1244,7 +1507,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1267,8 +1531,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1282,7 +1553,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1305,8 +1577,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1320,7 +1599,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1343,8 +1623,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1358,7 +1645,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1381,8 +1669,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1396,7 +1691,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1419,8 +1715,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1434,7 +1737,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1457,8 +1761,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1472,7 +1783,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1495,8 +1807,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1510,7 +1829,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1533,8 +1853,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1548,7 +1875,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1571,8 +1899,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1586,7 +1921,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1609,8 +1945,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1624,7 +1967,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1647,8 +1991,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1662,7 +2013,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1685,8 +2037,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1700,7 +2059,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1723,8 +2083,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1738,7 +2105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1761,8 +2129,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1776,7 +2151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1799,8 +2175,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1814,7 +2197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1837,8 +2221,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1852,7 +2243,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1875,8 +2267,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1890,7 +2289,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1913,8 +2313,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1928,7 +2335,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1951,8 +2359,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1966,7 +2381,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1989,8 +2405,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2004,7 +2427,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2027,8 +2451,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2042,7 +2473,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2065,8 +2497,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2080,7 +2519,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2103,8 +2543,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2118,7 +2565,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2141,8 +2589,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2156,7 +2611,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2179,8 +2635,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2194,7 +2657,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2217,8 +2681,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2232,7 +2703,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2255,8 +2727,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2270,7 +2749,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2293,8 +2773,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2308,7 +2795,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2331,8 +2819,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2346,7 +2841,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2369,8 +2865,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2384,7 +2887,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2407,8 +2911,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2422,7 +2933,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2445,8 +2957,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2460,7 +2979,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2477,15 +2997,27 @@
             "web-features:anchor-positioning"
           ],
           "support": {
-            "chrome": {
-              "alternative_name": "inset-area",
-              "version_added": "125"
-            },
+            "chrome": [
+              {
+                "version_added": "129"
+              },
+              {
+                "alternative_name": "inset-area",
+                "version_added": "125"
+              }
+            ],
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2499,7 +3031,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2522,8 +3055,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2537,7 +3077,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2554,15 +3095,27 @@
             "web-features:anchor-positioning"
           ],
           "support": {
-            "chrome": {
-              "alternative_name": "insetArea",
-              "version_added": "125"
-            },
+            "chrome": [
+              {
+                "version_added": "129"
+              },
+              {
+                "alternative_name": "insetArea",
+                "version_added": "125"
+              }
+            ],
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2576,7 +3129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2599,8 +3153,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2614,7 +3175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2637,8 +3199,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2652,7 +3221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2675,8 +3245,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2690,7 +3267,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/CSSPositionTryRule.json b/api/CSSPositionTryRule.json
index 9cfc44e7cdce63..28b8da79b5cfa4 100644
--- a/api/CSSPositionTryRule.json
+++ b/api/CSSPositionTryRule.json
@@ -14,8 +14,15 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false,
-            "impl_url": "https://bugzil.la/1838746"
+            "version_added": "131",
+            "flags": [
+              {
+                "type": "preference",
+                "name": "layout.css.anchor-positioning.enabled",
+                "value_to_set": "true"
+              }
+            ],
+            "impl_url": "https://bugzil.la/1909346"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -29,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -51,8 +59,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -66,7 +81,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -89,8 +105,15 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1838746"
+              "version_added": "131",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.anchor-positioning.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://bugzil.la/1909346"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -104,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/CSSPositionValue.json b/api/CSSPositionValue.json
index e09d70a7ef7852..200ef90fdc5f70 100644
--- a/api/CSSPositionValue.json
+++ b/api/CSSPositionValue.json
@@ -24,7 +24,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -34,7 +35,7 @@
       },
       "CSSPositionValue": {
         "__compat": {
-          "description": "<code>CSSPositionValue()</code> constructor",
+          "description": "`CSSPositionValue()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPositionValue/CSSPositionValue",
           "support": {
             "chrome": {
@@ -57,7 +58,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -90,7 +92,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,7 +126,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSPrimitiveValue.json b/api/CSSPrimitiveValue.json
index 9261a2c859f06b..73ad1544648607 100644
--- a/api/CSSPrimitiveValue.json
+++ b/api/CSSPrimitiveValue.json
@@ -34,7 +34,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -70,7 +71,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +115,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,7 +153,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -187,7 +191,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,7 +229,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -258,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -295,7 +302,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -332,7 +340,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSPropertyRule.json b/api/CSSPropertyRule.json
index de5d6edf975560..d35e08a981a980 100644
--- a/api/CSSPropertyRule.json
+++ b/api/CSSPropertyRule.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,7 +77,7 @@
       },
       "initialValue": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPropertyRule/initialvalue",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPropertyRule/initialValue",
           "spec_url": "https://drafts.css-houdini.org/css-properties-values-api/#dom-csspropertyrule-initialvalue",
           "tags": [
             "web-features:registered-custom-properties"
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSPseudoElement.json b/api/CSSPseudoElement.json
index f974becea33c1e..ca400f899003ac 100644
--- a/api/CSSPseudoElement.json
+++ b/api/CSSPseudoElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPseudoElement",
         "spec_url": "https://drafts.csswg.org/css-pseudo/#CSSPseudoElement-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPseudoElement/element",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#dom-csspseudoelement-element",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSPseudoElement/type",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#dom-csspseudoelement-type",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/CSSRotate.json b/api/CSSRotate.json
index 45739ea32a905e..5af91f84494769 100644
--- a/api/CSSRotate.json
+++ b/api/CSSRotate.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRotate",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssrotate",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,12 +40,15 @@
       },
       "CSSRotate": {
         "__compat": {
-          "description": "<code>CSSRotate()</code> constructor",
+          "description": "`CSSRotate()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRotate/CSSRotate",
           "spec_url": [
             "https://drafts.css-houdini.org/css-typed-om/#dom-cssrotate-cssrotate",
             "https://drafts.css-houdini.org/css-typed-om/#dom-cssrotate-cssrotate-x-y-z-angle"
           ],
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRotate/angle",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssrotate-angle",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -99,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -112,6 +124,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRotate/x",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssrotate-x",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRotate/y",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssrotate-y",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -169,7 +188,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -182,6 +202,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRotate/z",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssrotate-z",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -204,7 +227,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSRule.json b/api/CSSRule.json
index ab4058e71bf761..149abd9f4c9e9e 100644
--- a/api/CSSRule.json
+++ b/api/CSSRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRule",
         "spec_url": "https://drafts.csswg.org/cssom/#the-cssrule-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRule/cssText",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssrule-csstext",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -57,7 +64,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "The property normalizes rules and does not return the original verbatim rule text. For example, <code>border-width: 1px; border-style:solid; border-color:white;</code> returns <code>border: 1px solid white;</code>."
+              "notes": "The property normalizes rules and does not return the original verbatim rule text. For example, `border-width: 1px; border-style:solid; border-color:white;` returns `border: 1px solid white;`."
             },
             "oculus": "mirror",
             "opera": {
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,6 +92,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRule/parentRule",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssrule-parentrule",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -111,7 +122,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -124,6 +136,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRule/parentStyleSheet",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssrule-parentstylesheet",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -151,7 +166,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -191,7 +207,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSRuleList.json b/api/CSSRuleList.json
index e657dc7a6410dd..32403a5cb1865d 100644
--- a/api/CSSRuleList.json
+++ b/api/CSSRuleList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRuleList",
         "spec_url": "https://drafts.csswg.org/cssom/#the-cssrulelist-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRuleList/item",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssrulelist-item",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSRuleList/length",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssrulelist-length",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSScale.json b/api/CSSScale.json
index 6c98b79408d604..35a8e85339a52f 100644
--- a/api/CSSScale.json
+++ b/api/CSSScale.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSScale",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssscale",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,9 +39,12 @@
       },
       "CSSScale": {
         "__compat": {
-          "description": "<code>CSSScale()</code> constructor",
+          "description": "`CSSScale()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSScale/CSSScale",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssscale-cssscale",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,6 +81,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSScale/x",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssscale-x",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +120,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSScale/y",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssscale-y",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -130,7 +145,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,6 +159,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSScale/z",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssscale-z",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -165,7 +184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSScopeRule.json b/api/CSSScopeRule.json
index ee3adfc9356f29..77f277f49b21a8 100644
--- a/api/CSSScopeRule.json
+++ b/api/CSSScopeRule.json
@@ -36,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,7 +81,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSSkew.json b/api/CSSSkew.json
index f50be421efe23e..f49334fe571f9f 100644
--- a/api/CSSSkew.json
+++ b/api/CSSSkew.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkew",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssskew",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSSkew": {
         "__compat": {
-          "description": "<code>CSSSkew()</code> constructor",
+          "description": "`CSSSkew()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkew/CSSSkew",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssskew-cssskew",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkew/ax",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssskew-ax",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,6 +121,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkew/ay",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssskew-ay",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -131,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSSkewX.json b/api/CSSSkewX.json
index c0caa2648fea8f..211f824f73120c 100644
--- a/api/CSSSkewX.json
+++ b/api/CSSSkewX.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkewX",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssskewx",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSSkewX": {
         "__compat": {
-          "description": "<code>CSSSkewX()</code> constructor",
+          "description": "`CSSSkewX()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkewX/CSSSkewX",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssskewx-cssskewx",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkewX/ax",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssskewx-ax",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSSkewY.json b/api/CSSSkewY.json
index 5e59394f616868..65ec72a6d1011f 100644
--- a/api/CSSSkewY.json
+++ b/api/CSSSkewY.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkewY",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssskewy",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSSkewY": {
         "__compat": {
-          "description": "<code>CSSSkewY()</code> constructor",
+          "description": "`CSSSkewY()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkewY/CSSSkewY",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssskewy-cssskewy",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSSkewY/ay",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssskewy-ay",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSStartingStyleRule.json b/api/CSSStartingStyleRule.json
index 0fa3e08d4e892f..3fe188ae00e656 100644
--- a/api/CSSStartingStyleRule.json
+++ b/api/CSSStartingStyleRule.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/CSSStyleDeclaration.json b/api/CSSStyleDeclaration.json
index 635b9a9726fbb8..5e9eeb3857b088 100644
--- a/api/CSSStyleDeclaration.json
+++ b/api/CSSStyleDeclaration.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration",
         "spec_url": "https://drafts.csswg.org/cssom/#the-cssstyledeclaration-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/cssFloat",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstyleproperties-cssfloat",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,6 +92,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/cssText",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-csstext",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -111,7 +122,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,17 +139,17 @@
             "chrome": {
               "version_added": "1",
               "version_removed": "40",
-              "impl_url": "https://crbug.com/331608"
+              "impl_url": "https://crbug.com/40346367"
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": false,
-              "impl_url": "https://crbug.com/331608"
+              "impl_url": "https://crbug.com/40346367"
             },
             "firefox": {
               "version_added": "1",
               "version_removed": "61",
-              "notes": "Only returns a result if called on the result of <code>getComputedStyle()</code>."
+              "notes": "Only returns a result if called on the result of `getComputedStyle()`."
             },
             "firefox_android": {
               "version_added": "4",
@@ -157,8 +169,9 @@
             "webview_android": {
               "version_added": "4.4",
               "version_removed": "41",
-              "impl_url": "https://crbug.com/331608"
-            }
+              "impl_url": "https://crbug.com/40346367"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +184,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/getPropertyPriority",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-getpropertypriority",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -198,7 +214,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -211,6 +228,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/getPropertyValue",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-getpropertyvalue",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -238,7 +258,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -251,6 +272,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/item",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-item",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -278,7 +302,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,6 +316,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/length",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-length",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -318,7 +346,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -331,6 +360,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/parentRule",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-parentrule",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -354,7 +386,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -367,6 +400,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/removeProperty",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-removeproperty",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -394,7 +430,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -407,6 +444,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/setProperty",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-setproperty",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -434,7 +474,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -446,6 +487,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -469,7 +513,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSStyleRule.json b/api/CSSStyleRule.json
index 4e0fb1c3d341f6..e12e525aedf248 100644
--- a/api/CSSStyleRule.json
+++ b/api/CSSStyleRule.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleRule",
         "spec_url": "https://drafts.csswg.org/cssom/#the-cssstylerule-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -67,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -141,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,6 +161,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleRule/selectorText",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylerule-selectortext",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -181,7 +191,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -194,6 +205,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleRule/style",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylerule-style",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -221,7 +235,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -234,6 +249,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleRule/styleMap",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssstylerule-stylemap",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -256,7 +274,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSStyleSheet.json b/api/CSSStyleSheet.json
index 07b7231732b399..773c503e8985e1 100644
--- a/api/CSSStyleSheet.json
+++ b/api/CSSStyleSheet.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleSheet",
         "spec_url": "https://drafts.csswg.org/cssom/#the-cssstylesheet-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +45,7 @@
       },
       "CSSStyleSheet": {
         "__compat": {
-          "description": "<code>CSSStyleSheet()</code> constructor",
+          "description": "`CSSStyleSheet()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/CSSStyleSheet",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylesheet-cssstylesheet",
           "tags": [
@@ -68,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,7 +83,7 @@
         },
         "options_baseURL_parameter": {
           "__compat": {
-            "description": "<code>options.baseURL</code> parameter",
+            "description": "`options.baseURL` parameter",
             "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylesheetinit-baseurl",
             "tags": [
               "web-features:constructed-stylesheets"
@@ -105,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -117,7 +123,7 @@
       },
       "addRule": {
         "__compat": {
-          "description": "<code>addRule()</code>",
+          "description": "`addRule()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/addRule",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylesheet-addrule",
           "support": {
@@ -143,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/cssRules",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylesheet-cssrules",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -183,7 +193,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -194,9 +205,12 @@
       },
       "deleteRule": {
         "__compat": {
-          "description": "<code>deleteRule()</code>",
+          "description": "`deleteRule()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/deleteRule",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylesheet-deleterule",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -224,7 +238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -235,9 +250,12 @@
       },
       "insertRule": {
         "__compat": {
-          "description": "<code>insertRule()</code>",
+          "description": "`insertRule()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/insertRule",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylesheet-insertrule",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -265,7 +283,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -275,7 +294,10 @@
         },
         "index_parameter_optional": {
           "__compat": {
-            "description": "<code>index</code> parameter is optional",
+            "description": "`index` parameter is optional",
+            "tags": [
+              "web-features:css-object-model"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -299,7 +321,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -313,6 +336,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/ownerRule",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylesheet-ownerrule",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -340,7 +366,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -351,7 +378,7 @@
       },
       "removeRule": {
         "__compat": {
-          "description": "<code>removeRule()</code>",
+          "description": "`removeRule()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/removeRule",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-cssstylesheet-removerule",
           "support": {
@@ -379,7 +406,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -416,7 +444,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -453,7 +482,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -489,7 +519,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSStyleValue.json b/api/CSSStyleValue.json
index bd3f4563745f8c..30c61c23f123fe 100644
--- a/api/CSSStyleValue.json
+++ b/api/CSSStyleValue.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleValue",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#stylevalue-objects",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,9 +39,12 @@
       },
       "parse_static": {
         "__compat": {
-          "description": "<code>parse()</code> static method",
+          "description": "`parse()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleValue/parse_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssstylevalue-parse",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,9 +79,12 @@
       },
       "parseAll_static": {
         "__compat": {
-          "description": "<code>parseAll()</code> static method",
+          "description": "`parseAll()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSStyleValue/parseAll_static",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssstylevalue-parseall",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +120,9 @@
       "toString": {
         "__compat": {
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#stylevalue-serialization",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -130,7 +145,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSSupportsRule.json b/api/CSSSupportsRule.json
index a86dd36177c99b..295e496cf3d4e9 100644
--- a/api/CSSSupportsRule.json
+++ b/api/CSSSupportsRule.json
@@ -40,7 +40,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/CSSTransformComponent.json b/api/CSSTransformComponent.json
index a5d6b96add1944..5a5ed011bf4a26 100644
--- a/api/CSSTransformComponent.json
+++ b/api/CSSTransformComponent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformComponent",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#csstransformcomponent",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,6 +42,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformComponent/is2D",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstransformcomponent-is2d",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,6 +81,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformComponent/toMatrix",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstransformcomponent-tomatrix",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +120,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformComponent/toString",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#CSSTransformComponent-stringification-behavior",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -130,7 +145,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSTransformValue.json b/api/CSSTransformValue.json
index d5352eecc53a44..99b3085a2f62c5 100644
--- a/api/CSSTransformValue.json
+++ b/api/CSSTransformValue.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformValue",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#transformvalue-objects",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSTransformValue": {
         "__compat": {
-          "description": "<code>CSSTransformValue()</code> constructor",
+          "description": "`CSSTransformValue()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformValue/CSSTransformValue",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstransformvalue-csstransformvalue",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,6 +81,9 @@
       "entries": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformValue/entries",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,6 +119,9 @@
       "forEach": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformValue/forEach",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -129,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,6 +158,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformValue/is2D",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstransformvalue-is2d",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -164,7 +183,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,6 +196,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformValue/keys",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -198,7 +221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -211,6 +235,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformValue/length",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstransformvalue-length",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -233,7 +260,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -246,6 +274,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformValue/toMatrix",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstransformvalue-tomatrix",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -268,7 +299,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -280,6 +312,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransformValue/values",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -302,7 +337,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,6 +350,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -336,7 +375,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSTransition.json b/api/CSSTransition.json
index 77f54baf14ef04..df53c974a70f9f 100644
--- a/api/CSSTransition.json
+++ b/api/CSSTransition.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransition",
         "spec_url": "https://drafts.csswg.org/css-transitions-2/#the-CSSTransition-interface",
+        "tags": [
+          "web-features:transitions"
+        ],
         "support": {
           "chrome": {
             "version_added": "84"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTransition/transitionProperty",
           "spec_url": "https://drafts.csswg.org/css-transitions-2/#dom-csstransition-transitionproperty",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSTranslate.json b/api/CSSTranslate.json
index 5d3e5bac53c9c8..03160673ba9f80 100644
--- a/api/CSSTranslate.json
+++ b/api/CSSTranslate.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTranslate",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#csstranslate",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSTranslate": {
         "__compat": {
-          "description": "<code>CSSTranslate()</code> constructor",
+          "description": "`CSSTranslate()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTranslate/CSSTranslate",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstranslate-csstranslate",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTranslate/x",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstranslate-x",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,6 +121,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTranslate/y",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstranslate-y",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -131,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,6 +160,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSTranslate/z",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-csstranslate-z",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -166,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSUnitValue.json b/api/CSSUnitValue.json
index 33bfa1ddf1728f..1098e43f6aa538 100644
--- a/api/CSSUnitValue.json
+++ b/api/CSSUnitValue.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnitValue",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#simple-numeric",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSUnitValue": {
         "__compat": {
-          "description": "<code>CSSUnitValue()</code> constructor",
+          "description": "`CSSUnitValue()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnitValue/CSSUnitValue",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssunitvalue-cssunitvalue",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnitValue/unit",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssunitvalue-unit",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,6 +121,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnitValue/value",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssunitvalue-value",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -131,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSUnparsedValue.json b/api/CSSUnparsedValue.json
index b9ee060d1c97a9..4bcf6cde76e358 100644
--- a/api/CSSUnparsedValue.json
+++ b/api/CSSUnparsedValue.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnparsedValue",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssunparsedvalue",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSUnparsedValue": {
         "__compat": {
-          "description": "<code>CSSUnparsedValue()</code> constructor",
+          "description": "`CSSUnparsedValue()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnparsedValue/CSSUnparsedValue",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssunparsedvalue-cssunparsedvalue",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,6 +81,9 @@
       "entries": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnparsedValue/entries",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,6 +119,9 @@
       "forEach": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnparsedValue/forEach",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -129,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -141,6 +157,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnparsedValue/keys",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -163,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,6 +196,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnparsedValue/length",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssunparsedvalue-length",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -198,7 +221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -210,6 +234,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSUnparsedValue/values",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -232,7 +259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -244,6 +272,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -266,7 +297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSValue.json b/api/CSSValue.json
index 64032141acdb35..c0d53c5e2d84eb 100644
--- a/api/CSSValue.json
+++ b/api/CSSValue.json
@@ -27,7 +27,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -60,7 +61,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -94,7 +96,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSValueList.json b/api/CSSValueList.json
index 4d12cf7f501ecd..876eac85e849ff 100644
--- a/api/CSSValueList.json
+++ b/api/CSSValueList.json
@@ -27,7 +27,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -96,7 +98,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSVariableReferenceValue.json b/api/CSSVariableReferenceValue.json
index be54efb34d75a2..0c242c110a7313 100644
--- a/api/CSSVariableReferenceValue.json
+++ b/api/CSSVariableReferenceValue.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSVariableReferenceValue",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#cssvariablereferencevalue",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,9 +40,12 @@
       },
       "CSSVariableReferenceValue": {
         "__compat": {
-          "description": "<code>CSSVariableReferenceValue()</code> constructor",
+          "description": "`CSSVariableReferenceValue()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSVariableReferenceValue/CSSVariableReferenceValue",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssvariablereferencevalue-cssvariablereferencevalue",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSVariableReferenceValue/fallback",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssvariablereferencevalue-fallback",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,6 +121,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSVariableReferenceValue/variable",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-cssvariablereferencevalue-variable",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -131,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CSSViewTransitionRule.json b/api/CSSViewTransitionRule.json
index e85e907a5ada7b..8cff6207b3bab0 100644
--- a/api/CSSViewTransitionRule.json
+++ b/api/CSSViewTransitionRule.json
@@ -3,6 +3,9 @@
     "CSSViewTransitionRule": {
       "__compat": {
         "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#cssviewtransitionrule",
+        "tags": [
+          "web-features:cross-document-view-transitions"
+        ],
         "support": {
           "chrome": {
             "version_added": "126"
@@ -10,7 +13,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1860854"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -20,14 +24,15 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": "18.2"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
@@ -35,6 +40,9 @@
       "navigation": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#dom-cssviewtransitionrule-navigation",
+          "tags": [
+            "web-features:cross-document-view-transitions"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -52,14 +60,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -68,6 +77,9 @@
       "types": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#dom-cssviewtransitionrule-types",
+          "tags": [
+            "web-features:cross-document-view-transitions"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -85,14 +97,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/Cache.json b/api/Cache.json
index 2121c24dea8a5e..d9fbe3009d65f5 100644
--- a/api/Cache.json
+++ b/api/Cache.json
@@ -33,7 +33,8 @@
           "samsunginternet_android": {
             "version_added": "4.0"
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,7 +74,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,7 +118,8 @@
               "version_added": "4.0",
               "notes": "Requires HTTPS from Samsung Internet 5.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,7 +159,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -196,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -235,7 +240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -275,7 +281,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -317,7 +324,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,7 +368,8 @@
               "version_added": "4.0",
               "notes": "Requires HTTPS from Samsung Internet 5.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CacheStorage.json b/api/CacheStorage.json
index 47beadfca294c1..ee49d7d47873e6 100644
--- a/api/CacheStorage.json
+++ b/api/CacheStorage.json
@@ -38,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -70,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,7 +118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,7 +158,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -194,7 +198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,7 +238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +260,7 @@
               {
                 "version_added": "40",
                 "partial_implementation": true,
-                "notes": "The options parameter only supports <code>ignoreSearch</code>, and <code>cacheName</code>."
+                "notes": "The options parameter only supports `ignoreSearch`, and `cacheName`."
               }
             ],
             "chrome_android": "mirror",
@@ -279,7 +285,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -318,7 +325,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CanMakePaymentEvent.json b/api/CanMakePaymentEvent.json
index bdaa11d108275b..a5f385b7ba180c 100644
--- a/api/CanMakePaymentEvent.json
+++ b/api/CanMakePaymentEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanMakePaymentEvent",
         "spec_url": "https://w3c.github.io/payment-handler/#the-canmakepaymentevent",
+        "tags": [
+          "web-features:payment-handler"
+        ],
         "support": {
           "chrome": {
             "version_added": "70"
@@ -11,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1465682"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -27,7 +31,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +42,12 @@
       },
       "CanMakePaymentEvent": {
         "__compat": {
-          "description": "<code>CanMakePaymentEvent()</code> constructor",
+          "description": "`CanMakePaymentEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanMakePaymentEvent/CanMakePaymentEvent",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-canmakepaymentevent-constructor",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -63,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -98,7 +107,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -133,7 +143,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,7 +179,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -181,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanMakePaymentEvent/respondWith",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-canmakepaymentevent-respondwith",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -204,7 +219,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -239,7 +255,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CanvasCaptureMediaStreamTrack.json b/api/CanvasCaptureMediaStreamTrack.json
index 5aa2a75903c923..86729a1d787797 100644
--- a/api/CanvasCaptureMediaStreamTrack.json
+++ b/api/CanvasCaptureMediaStreamTrack.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasCaptureMediaStreamTrack",
         "spec_url": "https://w3c.github.io/mediacapture-fromelement/#the-canvascapturemediastreamtrack",
+        "tags": [
+          "web-features:capture-stream-canvas"
+        ],
         "support": {
           "chrome": {
             "version_added": "51"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,6 +42,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasCaptureMediaStreamTrack/canvas",
           "spec_url": "https://w3c.github.io/mediacapture-fromelement/#dom-canvascapturemediastreamtrack-canvas",
+          "tags": [
+            "web-features:capture-stream-canvas"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -72,6 +80,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasCaptureMediaStreamTrack/requestFrame",
           "spec_url": "https://w3c.github.io/mediacapture-fromelement/#dom-canvascapturemediastreamtrack-requestframe",
+          "tags": [
+            "web-features:capture-stream-canvas"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -93,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CanvasFilter.json b/api/CanvasFilter.json
index 5c27f94ef024c8..c323c1f429fdd8 100644
--- a/api/CanvasFilter.json
+++ b/api/CanvasFilter.json
@@ -36,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,7 +47,7 @@
       },
       "CanvasFilter": {
         "__compat": {
-          "description": "<code>CanvasFilter()</code> constructor",
+          "description": "`CanvasFilter()` constructor",
           "support": {
             "chrome": [
               {
@@ -81,7 +82,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CanvasGradient.json b/api/CanvasGradient.json
index a36688fd7a0732..8fb66078f0e9be 100644
--- a/api/CanvasGradient.json
+++ b/api/CanvasGradient.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasGradient",
         "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#canvasgradient",
+        "tags": [
+          "web-features:canvas-2d"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -14,7 +17,7 @@
           },
           "firefox": {
             "version_added": "1.5",
-            "notes": "Before Firefox 5.0, specifying non-finite values when adding color stops through a call to <code>addColorStop()</code> incorrectly throws <code>SYNTAX_ERR</code> instead of <code>INDEX_SIZE_ERR</code>."
+            "notes": "Before Firefox 5.0, specifying non-finite values when adding color stops through a call to `addColorStop()` incorrectly throws `SYNTAX_ERR` instead of `INDEX_SIZE_ERR`."
           },
           "firefox_android": {
             "version_added": "4"
@@ -34,7 +37,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasGradient/addColorStop",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-canvasgradient-addcolorstop-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -73,7 +80,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CanvasPattern.json b/api/CanvasPattern.json
index b2dcc6867941ac..1a44a27a8e289f 100644
--- a/api/CanvasPattern.json
+++ b/api/CanvasPattern.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasPattern",
         "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#canvaspattern",
+        "tags": [
+          "web-features:canvas-2d"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasPattern/setTransform",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-canvaspattern-settransform-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,7 +82,10 @@
         },
         "dommatrix": {
           "__compat": {
-            "description": "Accepts a <code>DOMMatrix2DInit</code>-like object parameter",
+            "description": "Accepts a `DOMMatrix2DInit`-like object parameter",
+            "tags": [
+              "web-features:canvas-2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "68"
@@ -96,7 +107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/api/CanvasRenderingContext2D.json b/api/CanvasRenderingContext2D.json
index b0e6530bbd336d..f650153f74c204 100644
--- a/api/CanvasRenderingContext2D.json
+++ b/api/CanvasRenderingContext2D.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D",
         "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#2dcontext",
+        "tags": [
+          "web-features:canvas-2d"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/arc",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-arc-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -72,7 +79,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,6 +93,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/arcTo",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-arcto-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -112,7 +123,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,6 +137,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/beginPath",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-beginpath-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -152,7 +167,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -165,6 +181,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/bezierCurveTo",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-beziercurveto-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -192,7 +211,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -205,6 +225,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/canvas",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-canvas-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -234,7 +257,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -247,6 +271,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/clearRect",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-clearrect-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -274,7 +301,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -287,6 +315,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/clip",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-clip-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -314,7 +345,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -324,7 +356,10 @@
         },
         "path_parameter": {
           "__compat": {
-            "description": "<code>path</code> parameter",
+            "description": "`path` parameter",
+            "tags": [
+              "web-features:canvas-2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "36"
@@ -348,7 +383,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -362,6 +398,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/closePath",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-closepath-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -389,7 +428,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -440,7 +480,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -453,6 +494,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createImageData",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createimagedata-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -482,7 +526,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -495,6 +540,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createLinearGradient",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createlineargradient-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -522,7 +570,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -535,6 +584,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createPattern",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createpattern-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -562,7 +614,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -575,6 +628,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createRadialGradient",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createradialgradient-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -602,7 +658,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -615,6 +672,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/direction",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-direction-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -636,7 +696,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -649,6 +710,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/drawFocusIfNeeded",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-drawfocusifneeded-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -678,7 +742,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -688,7 +753,10 @@
         },
         "path_parameter": {
           "__compat": {
-            "description": "<code>path</code> parameter",
+            "description": "`path` parameter",
+            "tags": [
+              "web-features:canvas-2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -712,7 +780,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -726,6 +795,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/drawImage",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-drawimage-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -753,7 +825,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -764,6 +837,9 @@
         "ImageBitmap_source_image": {
           "__compat": {
             "description": "ImageBitmap as source image",
+            "tags": [
+              "web-features:canvas-2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -787,7 +863,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -799,6 +876,9 @@
         "SVGImageElement_source_image": {
           "__compat": {
             "description": "SVGImageElement as source image",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "59"
@@ -822,7 +902,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -836,6 +917,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/ellipse",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-ellipse-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "31"
@@ -859,7 +943,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -872,6 +957,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fill",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-fill-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -899,7 +987,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -909,7 +998,10 @@
         },
         "path_parameter": {
           "__compat": {
-            "description": "<code>path</code> parameter",
+            "description": "`path` parameter",
+            "tags": [
+              "web-features:canvas-2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "36"
@@ -933,7 +1025,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -947,6 +1040,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fillRect",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-fillrect-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -974,7 +1070,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -987,6 +1084,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fillStyle",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-fillstyle-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1014,7 +1114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1028,7 +1129,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fillText",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-filltext-dev",
           "tags": [
-            "web-features:canvas-text"
+            "web-features:canvas-2d"
           ],
           "support": {
             "chrome": {
@@ -1059,7 +1160,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1072,6 +1174,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/filter",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-filter-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -1094,7 +1199,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1107,6 +1213,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/font",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-font-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -1136,7 +1245,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1149,6 +1259,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fontKerning",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-fontkerning",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "99"
@@ -1170,7 +1283,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1183,6 +1297,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fontStretch",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-fontstretch",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "99"
@@ -1204,7 +1321,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1217,6 +1335,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fontVariantCaps",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-fontvariantcaps",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "99"
@@ -1238,7 +1359,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1251,6 +1373,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getContextAttributes",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#2dcontext:dom-context-2d-canvas-getcontextattributes-2",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": [
               {
@@ -1278,7 +1403,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1291,6 +1417,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getImageData",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-getimagedata-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -1301,7 +1430,7 @@
             },
             "firefox": {
               "version_added": "2",
-              "notes": "Since Firefox 5, <code>getImageData</code> now correctly accepts rectangles that extend beyond the bounds of the canvas; pixels outside the canvas are returned as transparent black and now also returns at least one pixel's worth of image data if a rectangle smaller than one pixel is specified."
+              "notes": "Since Firefox 5, `getImageData` now correctly accepts rectangles that extend beyond the bounds of the canvas; pixels outside the canvas are returned as transparent black and now also returns at least one pixel's worth of image data if a rectangle smaller than one pixel is specified."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1321,7 +1450,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1334,6 +1464,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getLineDash",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-getlinedash-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -1357,7 +1490,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1370,6 +1504,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getTransform",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-gettransform-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -1391,7 +1528,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1404,6 +1542,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/globalAlpha",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-globalalpha-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1431,7 +1572,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1444,6 +1586,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/globalCompositeOperation",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-globalcompositeoperation-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1471,7 +1616,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1484,6 +1630,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/imageSmoothingEnabled",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-imagesmoothingenabled-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -1508,7 +1657,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1521,6 +1671,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/imageSmoothingQuality",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-imagesmoothingquality-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -1542,7 +1695,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1579,7 +1733,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1592,6 +1747,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/isPointInPath",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-ispointinpath-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1619,7 +1777,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1629,7 +1788,10 @@
         },
         "path_parameter": {
           "__compat": {
-            "description": "<code>path</code> parameter",
+            "description": "`path` parameter",
+            "tags": [
+              "web-features:canvas-2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "36"
@@ -1653,7 +1815,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1667,6 +1830,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/isPointInStroke",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-ispointinstroke-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "26"
@@ -1688,7 +1854,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1698,7 +1865,10 @@
         },
         "path_parameter": {
           "__compat": {
-            "description": "<code>path</code> parameter",
+            "description": "`path` parameter",
+            "tags": [
+              "web-features:canvas-2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "36"
@@ -1720,7 +1890,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1734,6 +1905,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/letterSpacing",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-letterspacing",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "99"
@@ -1755,7 +1929,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1768,6 +1943,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineCap",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-linecap-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1795,7 +1973,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1808,6 +1987,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineDashOffset",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-linedashoffset-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -1837,7 +2019,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1850,6 +2033,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineJoin",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-linejoin-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1877,7 +2063,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1890,6 +2077,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineTo",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-lineto-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1917,7 +2107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1930,6 +2121,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineWidth",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-linewidth-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1957,7 +2151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1971,7 +2166,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/measureText",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-measuretext-dev",
           "tags": [
-            "web-features:canvas-text"
+            "web-features:canvas-2d"
           ],
           "support": {
             "chrome": {
@@ -2002,7 +2197,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2015,6 +2211,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/miterLimit",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-miterlimit-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2042,7 +2241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2055,6 +2255,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/moveTo",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-moveto-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2082,7 +2285,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2095,6 +2299,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/putImageData",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-putimagedata-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -2124,7 +2331,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2137,6 +2345,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/quadraticCurveTo",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-quadraticcurveto-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2166,7 +2377,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2179,6 +2391,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/rect",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-rect-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2206,7 +2421,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2243,7 +2459,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2256,6 +2473,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/resetTransform",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-resettransform-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "31"
@@ -2277,7 +2497,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2290,6 +2511,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/restore",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-restore-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2317,7 +2541,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2330,6 +2555,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/rotate",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-rotate-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2357,7 +2585,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2394,7 +2623,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2407,6 +2637,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/save",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-save-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2434,7 +2667,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2447,6 +2681,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/scale",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-scale-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2474,7 +2711,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2487,6 +2725,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-setlinedash-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -2510,7 +2751,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2523,6 +2765,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setTransform",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-settransform-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -2552,7 +2797,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2563,6 +2809,9 @@
         "matrix_parameter": {
           "__compat": {
             "description": "Accept matrix object as parameter",
+            "tags": [
+              "web-features:canvas-2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "68"
@@ -2584,7 +2833,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2598,6 +2848,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowBlur",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-shadowblur-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2625,7 +2878,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2638,6 +2892,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowColor",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-shadowcolor-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2665,7 +2922,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2678,6 +2936,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowOffsetX",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-shadowoffsetx-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2705,7 +2966,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2718,6 +2980,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowOffsetY",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-shadowoffsety-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2745,7 +3010,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2758,6 +3024,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/stroke",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-stroke-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2785,7 +3054,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2795,7 +3065,10 @@
         },
         "path_parameter": {
           "__compat": {
-            "description": "<code>path</code> parameter",
+            "description": "`path` parameter",
+            "tags": [
+              "web-features:canvas-2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "36"
@@ -2819,7 +3092,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2833,6 +3107,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/strokeRect",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-strokerect-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2860,7 +3137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2873,6 +3151,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/strokeStyle",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-strokestyle-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2900,7 +3181,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2914,7 +3196,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/strokeText",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-stroketext-dev",
           "tags": [
-            "web-features:canvas-text"
+            "web-features:canvas-2d"
           ],
           "support": {
             "chrome": {
@@ -2945,7 +3227,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2959,7 +3242,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/textAlign",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-textalign-dev",
           "tags": [
-            "web-features:canvas-text"
+            "web-features:canvas-2d"
           ],
           "support": {
             "chrome": {
@@ -2990,7 +3273,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3004,7 +3288,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/textBaseline",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-textbaseline-dev",
           "tags": [
-            "web-features:canvas-text"
+            "web-features:canvas-2d"
           ],
           "support": {
             "chrome": {
@@ -3035,7 +3319,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3048,6 +3333,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/textRendering",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-textrendering",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "99"
@@ -3069,7 +3357,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3082,6 +3371,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/transform",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-transform-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -3109,7 +3401,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3122,6 +3415,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/translate",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-translate-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -3149,7 +3445,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3162,6 +3459,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/wordSpacing",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-wordspacing",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "99"
@@ -3183,7 +3483,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CaptureController.json b/api/CaptureController.json
index cd95d96ca3553c..f4fd97402cb28e 100644
--- a/api/CaptureController.json
+++ b/api/CaptureController.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CaptureController",
         "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-capturecontroller",
+        "tags": [
+          "web-features:screen-capture"
+        ],
         "support": {
           "chrome": {
             "version_added": "109"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +41,12 @@
       },
       "CaptureController": {
         "__compat": {
-          "description": "<code>CaptureController()</code> constructor",
+          "description": "`CaptureController()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CaptureController/CaptureController",
           "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-capturecontroller-constructor",
+          "tags": [
+            "web-features:screen-capture"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -63,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -76,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CaptureController/setFocusBehavior",
           "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-capturecontroller-setfocusbehavior",
+          "tags": [
+            "web-features:screen-capture"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -99,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/CaretPosition.json b/api/CaretPosition.json
index 22632f2bdb8788..8154c18d3a6677 100644
--- a/api/CaretPosition.json
+++ b/api/CaretPosition.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -57,7 +58,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -90,7 +92,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,7 +126,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ChannelMergerNode.json b/api/ChannelMergerNode.json
index 6bf8e12195e0ed..6085ed707448c3 100644
--- a/api/ChannelMergerNode.json
+++ b/api/ChannelMergerNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "ChannelMergerNode": {
         "__compat": {
-          "description": "<code>ChannelMergerNode()</code> constructor",
+          "description": "`ChannelMergerNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ChannelMergerNode/ChannelMergerNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-channelmergernode-constructor-channelmergernode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ChannelSplitterNode.json b/api/ChannelSplitterNode.json
index 4a3e478854824e..20311cd6e3ed95 100644
--- a/api/ChannelSplitterNode.json
+++ b/api/ChannelSplitterNode.json
@@ -10,7 +10,7 @@
         "support": {
           "chrome": {
             "version_added": "14",
-            "notes": "Starting in Chrome 56, <code>channelCountMode</code> is set to <code>explicit</code> and <code>channelCount</code> is fixed to the number of outputs, as per the latest spec."
+            "notes": "Starting in Chrome 56, `channelCountMode` is set to `explicit` and `channelCount` is fixed to the number of outputs, as per the latest spec."
           },
           "chrome_android": "mirror",
           "edge": {
@@ -33,8 +33,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3",
-            "notes": "Starting in version 56, <code>channelCountMode</code> is set to <code>explicit</code> and <code>channelCount</code> is fixed to the number of outputs, as per the latest spec."
-          }
+            "notes": "Starting in version 56, `channelCountMode` is set to `explicit` and `channelCount` is fixed to the number of outputs, as per the latest spec."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,7 +45,7 @@
       },
       "ChannelSplitterNode": {
         "__compat": {
-          "description": "<code>ChannelSplitterNode()</code> constructor",
+          "description": "`ChannelSplitterNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ChannelSplitterNode/ChannelSplitterNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-channelsplitternode-constructor-channelsplitternode",
           "tags": [
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ChapterInformation.json b/api/ChapterInformation.json
index 2f18cc9781c6b6..58936e06e7dea3 100644
--- a/api/ChapterInformation.json
+++ b/api/ChapterInformation.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -92,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -126,7 +129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/CharacterBoundsUpdateEvent.json b/api/CharacterBoundsUpdateEvent.json
index 313a12b495b90c..e27c19bcb35f84 100644
--- a/api/CharacterBoundsUpdateEvent.json
+++ b/api/CharacterBoundsUpdateEvent.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1904161"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/269922"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,7 +41,7 @@
       },
       "CharacterBoundsUpdateEvent": {
         "__compat": {
-          "description": "<code>CharacterBoundsUpdateEvent()</code> constructor",
+          "description": "`CharacterBoundsUpdateEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterBoundsUpdateEvent/CharacterBoundsUpdateEvent",
           "spec_url": "https://w3c.github.io/edit-context/#dom-characterboundsupdateevent-constructor",
           "tags": [
@@ -65,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -102,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/CharacterData.json b/api/CharacterData.json
index fc629e5a314298..35f6cd48a2aa27 100644
--- a/api/CharacterData.json
+++ b/api/CharacterData.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData",
         "spec_url": "https://dom.spec.whatwg.org/#interface-characterdata",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/after",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-after①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -68,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/appendData",
           "spec_url": "https://dom.spec.whatwg.org/#dom-characterdata-appenddata",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -121,6 +133,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/before",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-before①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -146,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/data",
           "spec_url": "https://dom.spec.whatwg.org/#dom-characterdata-data",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -199,6 +219,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/deleteData",
           "spec_url": "https://dom.spec.whatwg.org/#dom-characterdata-deletedata",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -226,7 +249,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -239,6 +263,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/insertData",
           "spec_url": "https://dom.spec.whatwg.org/#dom-characterdata-insertdata",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -266,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -279,6 +307,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/length",
           "spec_url": "https://dom.spec.whatwg.org/#dom-characterdata-length",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -306,7 +337,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -319,6 +351,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/nextElementSibling",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-nondocumenttypechildnode-nextelementsibling②",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -355,6 +391,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/previousElementSibling",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-nondocumenttypechildnode-previouselementsibling②",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -378,7 +417,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -391,6 +431,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/remove",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-remove①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -414,7 +457,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -427,6 +471,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/replaceData",
           "spec_url": "https://dom.spec.whatwg.org/#dom-characterdata-replacedata",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -454,7 +501,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -467,6 +515,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/replaceWith",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-replacewith①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -492,7 +543,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -505,6 +557,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CharacterData/substringData",
           "spec_url": "https://dom.spec.whatwg.org/#dom-characterdata-substringdata",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -532,7 +587,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Client.json b/api/Client.json
index 76d50173881533..804d7bec484fce 100644
--- a/api/Client.json
+++ b/api/Client.json
@@ -27,7 +27,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -62,7 +65,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -98,7 +104,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -134,7 +143,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -170,7 +182,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -206,7 +221,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/Clients.json b/api/Clients.json
index 2e7efe357377be..49e4ba52684320 100644
--- a/api/Clients.json
+++ b/api/Clients.json
@@ -27,7 +27,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -62,7 +65,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -98,7 +104,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -114,12 +123,12 @@
           "support": {
             "chrome": {
               "version_added": "42",
-              "notes": "<code>Client</code> objects returned in most recent focus order."
+              "notes": "`Client` objects returned in most recent focus order."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "17",
-              "notes": "<code>Client</code> objects returned in most recent focus order."
+              "notes": "`Client` objects returned in most recent focus order."
             },
             "firefox": [
               {
@@ -129,7 +138,7 @@
                 "version_added": "44",
                 "version_removed": "54",
                 "partial_implementation": true,
-                "notes": "Before Firefox 54, <code>Client</code> objects were not returned in the most recent focus order as required by the specification."
+                "notes": "Before Firefox 54, `Client` objects were not returned in the most recent focus order as required by the specification."
               }
             ],
             "firefox_android": "mirror",
@@ -148,7 +157,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -158,17 +170,17 @@
         },
         "options_includeUncontrolled_parameter": {
           "__compat": {
-            "description": "<code>options.includeUncontrolled</code> parameter",
+            "description": "`options.includeUncontrolled` parameter",
             "spec_url": "https://w3c.github.io/ServiceWorker/#dom-clientqueryoptions-includeuncontrolled",
             "support": {
               "chrome": {
                 "version_added": "42",
-                "notes": "<code>Client</code> objects returned in most recent focus order."
+                "notes": "`Client` objects returned in most recent focus order."
               },
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "17",
-                "notes": "<code>Client</code> objects returned in most recent focus order."
+                "notes": "`Client` objects returned in most recent focus order."
               },
               "firefox": {
                 "version_added": "44"
@@ -189,7 +201,10 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
@@ -234,7 +249,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/Clipboard.json b/api/Clipboard.json
index b28ec57435e20c..7222fee51b6cb5 100644
--- a/api/Clipboard.json
+++ b/api/Clipboard.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,8 +46,8 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "66",
-              "notes": "The user must grant the <code>clipboard-read</code> permission."
+              "version_added": "76",
+              "notes": "The user must grant the `clipboard-read` permission."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -54,7 +55,7 @@
               "version_added": "127",
               "notes": [
                 "This method must be called within user gesture event handlers.",
-                "Web extensions require the <code>clipboardRead</code> permission in manifest to read data. With this permission, the extension does not require a user interaction and does not display a paste prompt.",
+                "Web extensions require the `clipboardRead` permission in manifest to read data. With this permission, the extension does not require a user interaction and does not display a paste prompt.",
                 "A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed."
               ]
             },
@@ -70,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -80,7 +82,7 @@
         },
         "formats_unsanitized_parameter": {
           "__compat": {
-            "description": "<code>formats.unsanitized</code> parameter",
+            "description": "`formats.unsanitized` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/Clipboard/read#unsanitized",
             "spec_url": "https://w3c.github.io/clipboard-apis/#dictdef-clipboardunsanitizedformats",
             "tags": [
@@ -107,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -127,7 +130,7 @@
           "support": {
             "chrome": {
               "version_added": "66",
-              "notes": "The user must grant the <code>clipboard-read</code> permission."
+              "notes": "The user must grant the `clipboard-read` permission."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -135,7 +138,7 @@
               "version_added": "125",
               "notes": [
                 "This method must be called within user gesture event handlers.",
-                "Web extensions require the <code>clipboardRead</code> permission in manifest to read data. With this permission, the extension does not require a user interaction and does not display a paste prompt.",
+                "Web extensions require the `clipboardRead` permission in manifest to read data. With this permission, the extension does not require a user interaction and does not display a paste prompt.",
                 "A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed."
               ]
             },
@@ -151,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,7 +166,10 @@
       },
       "type_image-png": {
         "__compat": {
-          "description": "Supports <code>image/png</code> MIME type",
+          "description": "Supports `image/png` MIME type",
+          "tags": [
+            "web-features:async-clipboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -184,7 +191,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,7 +203,10 @@
       },
       "type_text-html": {
         "__compat": {
-          "description": "Supports <code>text/html</code> MIME type",
+          "description": "Supports `text/html` MIME type",
+          "tags": [
+            "web-features:async-clipboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -217,7 +228,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -228,10 +240,13 @@
       },
       "type_text-plain": {
         "__compat": {
-          "description": "Supports <code>text/plain</code> MIME type",
+          "description": "Supports `text/plain` MIME type",
+          "tags": [
+            "web-features:async-clipboard"
+          ],
           "support": {
             "chrome": {
-              "version_added": "66"
+              "version_added": "76"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -250,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -268,10 +284,10 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "66",
+              "version_added": "76",
               "notes": [
-                "From version 107, this method must be called within user gesture event handlers, or the user must grant the <code>clipboard-write</code> permission.",
-                "Before version 107, the user must grant the <code>clipboard-write</code> permission."
+                "From version 107, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.",
+                "Before version 107, the user must grant the `clipboard-write` permission."
               ]
             },
             "chrome_android": "mirror",
@@ -282,7 +298,7 @@
               "version_added": "127",
               "notes": [
                 "This method must be called within user gesture event handlers.",
-                "Web extensions require the <code>clipboardWrite</code> permission in manifest to read data. With this permission, the extension does not require a user interaction and does not display a paste prompt.",
+                "Web extensions require the `clipboardWrite` permission in manifest to read data. With this permission, the extension does not require a user interaction and does not display a paste prompt.",
                 "A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed."
               ]
             },
@@ -298,7 +314,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -318,8 +335,8 @@
             "chrome": {
               "version_added": "66",
               "notes": [
-                "From version 107, this method must be called within user gesture event handlers, or the user must grant the <code>clipboard-write</code> permission.",
-                "Before version 107, the user must grant the <code>clipboard-write</code> permission."
+                "From version 107, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.",
+                "Before version 107, the user must grant the `clipboard-write` permission."
               ]
             },
             "chrome_android": "mirror",
@@ -328,7 +345,7 @@
               "version_added": "63",
               "notes": [
                 "This method must be called within user gesture event handlers.",
-                "Web extensions require the <code>clipboardRead</code> permission in manifest to read data. With this permission, the extension does not require a user interaction and does not display a paste prompt.",
+                "Web extensions require the `clipboardRead` permission in manifest to read data. With this permission, the extension does not require a user interaction and does not display a paste prompt.",
                 "A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed."
               ]
             },
@@ -345,7 +362,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ClipboardEvent.json b/api/ClipboardEvent.json
index cc0cf35bc434c1..b07db4d2a855d4 100644
--- a/api/ClipboardEvent.json
+++ b/api/ClipboardEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/ClipboardEvent",
         "spec_url": "https://w3c.github.io/clipboard-apis/#clipboard-event-interfaces",
+        "tags": [
+          "web-features:clipboard-events"
+        ],
         "support": {
           "chrome": {
             "version_added": "41"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,9 +41,12 @@
       },
       "ClipboardEvent": {
         "__compat": {
-          "description": "<code>ClipboardEvent()</code> constructor",
+          "description": "`ClipboardEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ClipboardEvent/ClipboardEvent",
           "spec_url": "https://w3c.github.io/clipboard-apis/#dom-clipboardevent-clipboardevent",
+          "tags": [
+            "web-features:clipboard-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -63,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -76,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ClipboardEvent/clipboardData",
           "spec_url": "https://w3c.github.io/clipboard-apis/#clipboardevent-clipboarddata",
+          "tags": [
+            "web-features:clipboard-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -99,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ClipboardItem.json b/api/ClipboardItem.json
index b67fed2d624cc1..841572c5df48c2 100644
--- a/api/ClipboardItem.json
+++ b/api/ClipboardItem.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,7 @@
       },
       "ClipboardItem": {
         "__compat": {
-          "description": "<code>ClipboardItem()</code> constructor",
+          "description": "`ClipboardItem()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ClipboardItem/ClipboardItem",
           "spec_url": "https://w3c.github.io/clipboard-apis/#dom-clipboarditem-clipboarditem",
           "tags": [
@@ -55,7 +56,7 @@
                 "version_added": "76",
                 "version_removed": "98",
                 "partial_implementation": true,
-                "notes": "The <code>ClipboardItem</code> constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See <a href='https://crbug.com/1014310'>bug 1014310</a>."
+                "notes": "The `ClipboardItem` constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See [bug 40103226](https://crbug.com/40103226)."
               }
             ],
             "chrome_android": [
@@ -66,7 +67,7 @@
                 "version_added": "84",
                 "version_removed": "98",
                 "partial_implementation": true,
-                "notes": "The <code>ClipboardItem</code> constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See <a href='https://crbug.com/1014310'>bug 1014310</a>."
+                "notes": "The `ClipboardItem` constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See [bug 40103226](https://crbug.com/40103226)."
               }
             ],
             "edge": "mirror",
@@ -85,7 +86,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -124,7 +126,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,7 +202,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -209,8 +214,11 @@
       },
       "type_image_svg_xml": {
         "__compat": {
-          "description": "Support for <code>image/svg+xml</code> MIME type.",
+          "description": "Support for `image/svg+xml` MIME type.",
           "spec_url": "https://w3c.github.io/clipboard-apis/#optional-data-types",
+          "tags": [
+            "web-features:clipboard-svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "124"
@@ -232,7 +240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -243,8 +252,11 @@
       },
       "type_web": {
         "__compat": {
-          "description": "Support for custom formats starting with <code>web </code>.",
+          "description": "Support for custom formats starting with `web `.",
           "spec_url": "https://w3c.github.io/clipboard-apis/#optional-data-types",
+          "tags": [
+            "web-features:clipboard-custom-format"
+          ],
           "support": {
             "chrome": {
               "version_added": "104"
@@ -266,7 +278,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -305,7 +318,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CloseEvent.json b/api/CloseEvent.json
index f4e2f742e25992..bfeb38af798049 100644
--- a/api/CloseEvent.json
+++ b/api/CloseEvent.json
@@ -21,8 +21,8 @@
           "firefox": {
             "version_added": "8",
             "notes": [
-              "Before Firefox 12, the close code <code>CLOSE_NORMAL</code> was used when the channel was closed due to an unexpected error or unspecified error condition.",
-              "Before Firefox 8, the <code>WebSocket</code> close event was sent to the listener as a simple event."
+              "Before Firefox 12, the close code `CLOSE_NORMAL` was used when the channel was closed due to an unexpected error or unspecified error condition.",
+              "Before Firefox 8, the `WebSocket` close event was sent to the listener as a simple event."
             ]
           },
           "firefox_android": {
@@ -31,6 +31,9 @@
           "ie": {
             "version_added": "10"
           },
+          "nodejs": {
+            "version_added": "23.0.0"
+          },
           "oculus": "mirror",
           "opera": {
             "version_added": "12.1"
@@ -43,7 +46,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -53,7 +57,7 @@
       },
       "CloseEvent": {
         "__compat": {
-          "description": "<code>CloseEvent()</code> constructor",
+          "description": "`CloseEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CloseEvent/CloseEvent",
           "spec_url": "https://websockets.spec.whatwg.org/#dom-closeevent-closeevent",
           "tags": [
@@ -77,6 +81,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": "23.0.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "12.1"
@@ -89,7 +96,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,6 +131,9 @@
             "ie": {
               "version_added": "10"
             },
+            "nodejs": {
+              "version_added": "23.0.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "12.1"
@@ -135,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -169,6 +181,9 @@
             "ie": {
               "version_added": "10"
             },
+            "nodejs": {
+              "version_added": "23.0.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "12.1"
@@ -181,7 +196,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,6 +231,9 @@
             "ie": {
               "version_added": "10"
             },
+            "nodejs": {
+              "version_added": "23.0.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "12.1"
@@ -227,7 +246,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CloseWatcher.json b/api/CloseWatcher.json
index cae04afbf349ee..219e55a5f2a852 100644
--- a/api/CloseWatcher.json
+++ b/api/CloseWatcher.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CloseWatcher",
         "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#closewatcher",
+        "tags": [
+          "web-features:closewatcher"
+        ],
         "support": {
           "chrome": {
             "version_added": "126"
@@ -11,7 +14,14 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": "132",
+            "flags": [
+              {
+                "type": "preference",
+                "name": "dom.closewatcher.enabled",
+                "value_to_set": "true"
+              }
+            ]
           },
           "firefox_android": "mirror",
           "ie": {
@@ -25,7 +35,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -35,9 +46,12 @@
       },
       "CloseWatcher": {
         "__compat": {
-          "description": "<code>CloseWatcher()</code> constructor",
+          "description": "`CloseWatcher()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CloseWatcher/CloseWatcher",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-closewatcher",
+          "tags": [
+            "web-features:closewatcher"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -45,7 +59,14 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.closewatcher.enabled",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -59,7 +80,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -70,9 +92,12 @@
       },
       "cancel_event": {
         "__compat": {
-          "description": "<code>cancel</code> event",
+          "description": "`cancel` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CloseWatcher/cancel_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#handler-closewatcher-oncancel",
+          "tags": [
+            "web-features:closewatcher"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -80,7 +105,14 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.closewatcher.enabled",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -94,7 +126,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,6 +140,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CloseWatcher/close",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-closewatcher-close",
+          "tags": [
+            "web-features:closewatcher"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -114,7 +150,14 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.closewatcher.enabled",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -128,7 +171,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,9 +183,12 @@
       },
       "close_event": {
         "__compat": {
-          "description": "<code>close</code> event",
+          "description": "`close` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CloseWatcher/close_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#handler-closewatcher-onclose",
+          "tags": [
+            "web-features:closewatcher"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -149,7 +196,14 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.closewatcher.enabled",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -163,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -176,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CloseWatcher/destroy",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-closewatcher-destroy",
+          "tags": [
+            "web-features:closewatcher"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -183,7 +241,14 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.closewatcher.enabled",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -197,7 +262,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -210,6 +276,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CloseWatcher/requestClose",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-closewatcher-requestclose",
+          "tags": [
+            "web-features:closewatcher"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -217,7 +286,14 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.closewatcher.enabled",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -231,7 +307,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/InvokeEvent.json b/api/CommandEvent.json
similarity index 87%
rename from api/InvokeEvent.json
rename to api/CommandEvent.json
index 1ba58cfebfc114..f30c8364be8001 100644
--- a/api/InvokeEvent.json
+++ b/api/CommandEvent.json
@@ -1,7 +1,8 @@
 {
   "api": {
-    "InvokeEvent": {
+    "CommandEvent": {
       "__compat": {
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/CommandEvent",
         "support": {
           "chrome": {
             "version_added": "preview",
@@ -46,7 +47,8 @@
             "version_added": false
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -54,9 +56,10 @@
           "deprecated": false
         }
       },
-      "InvokeEvent": {
+      "CommandEvent": {
         "__compat": {
-          "description": "<code>InvokeEvent()</code> constructor",
+          "description": "`CommandEvent()` constructor",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CommandEvent/CommandEvent",
           "support": {
             "chrome": {
               "version_added": "preview",
@@ -101,7 +104,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -110,8 +114,9 @@
           }
         }
       },
-      "action": {
+      "command": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CommandEvent/command",
           "support": {
             "chrome": {
               "version_added": "preview",
@@ -154,17 +159,19 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": false,
+            "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
         }
       },
-      "invoker": {
+      "source": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CommandEvent/source",
           "support": {
             "chrome": {
               "version_added": "preview",
@@ -207,10 +214,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": false,
+            "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/Comment.json b/api/Comment.json
index 3637a32d763674..861abf2bd8c950 100644
--- a/api/Comment.json
+++ b/api/Comment.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Comment",
         "spec_url": "https://dom.spec.whatwg.org/#interface-comment",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,9 +47,12 @@
       },
       "Comment": {
         "__compat": {
-          "description": "<code>Comment()</code> constructor",
+          "description": "`Comment()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Comment/Comment",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-comment-comment①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CompositionEvent.json b/api/CompositionEvent.json
index 3f0294ae2ed50d..2f42dcc29a53e2 100644
--- a/api/CompositionEvent.json
+++ b/api/CompositionEvent.json
@@ -29,7 +29,8 @@
             "version_added": "5"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,7 +40,7 @@
       },
       "CompositionEvent": {
         "__compat": {
-          "description": "<code>CompositionEvent()</code> constructor",
+          "description": "`CompositionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CompositionEvent/CompositionEvent",
           "spec_url": "https://w3c.github.io/uievents/#dom-compositionevent-compositionevent",
           "support": {
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,7 +107,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -145,7 +148,8 @@
             "samsunginternet_android": {
               "version_added": "1.5"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -181,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CompressionStream.json b/api/CompressionStream.json
index 4f6474aac7bfa9..06660ce7bab69c 100644
--- a/api/CompressionStream.json
+++ b/api/CompressionStream.json
@@ -29,11 +29,8 @@
             },
             {
               "version_added": "17.0.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -44,7 +41,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,7 +52,7 @@
       },
       "CompressionStream": {
         "__compat": {
-          "description": "<code>CompressionStream()</code> constructor",
+          "description": "`CompressionStream()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CompressionStream/CompressionStream",
           "spec_url": "https://compression.spec.whatwg.org/#dom-compressionstream-compressionstream",
           "tags": [
@@ -87,7 +85,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +127,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -176,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -218,7 +219,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -262,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -305,7 +308,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ConstantSourceNode.json b/api/ConstantSourceNode.json
index 44c46d24182c58..ece0f053506e7e 100644
--- a/api/ConstantSourceNode.json
+++ b/api/ConstantSourceNode.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "ConstantSourceNode": {
         "__compat": {
-          "description": "<code>ConstantSourceNode()</code> constructor",
+          "description": "`ConstantSourceNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ConstantSourceNode/ConstantSourceNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-constantsourcenode-constructor-constantsourcenode",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ContactAddress.json b/api/ContactAddress.json
index d11cdc2a5ca5e3..003bfb41d3b6ae 100644
--- a/api/ContactAddress.json
+++ b/api/ContactAddress.json
@@ -36,7 +36,8 @@
             "partial_implementation": true,
             "notes": "This API was exposed but failed upon opening a contact selector."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -80,7 +81,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -125,7 +127,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -170,7 +173,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -215,7 +219,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -260,7 +265,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -305,7 +311,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -350,7 +357,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -395,7 +403,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -440,7 +449,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -485,7 +495,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -530,7 +541,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ContactsManager.json b/api/ContactsManager.json
index 03a52c26fc2c41..7e1555d3f17fa9 100644
--- a/api/ContactsManager.json
+++ b/api/ContactsManager.json
@@ -44,7 +44,8 @@
             "partial_implementation": true,
             "notes": "This API was exposed but failed upon opening a contact selector."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -96,7 +97,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -149,7 +151,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ContentIndex.json b/api/ContentIndex.json
index d837fc46415935..ff122ebd446c08 100644
--- a/api/ContentIndex.json
+++ b/api/ContentIndex.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -62,7 +63,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -98,7 +100,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -134,7 +137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ContentIndexEvent.json b/api/ContentIndexEvent.json
index 8a902544d30cf3..80d26e739094fd 100644
--- a/api/ContentIndexEvent.json
+++ b/api/ContentIndexEvent.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,7 +38,7 @@
       },
       "ContentIndexEvent": {
         "__compat": {
-          "description": "<code>ContentIndexEvent()</code> constructor",
+          "description": "`ContentIndexEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ContentIndexEvent/ContentIndexEvent",
           "spec_url": "https://wicg.github.io/content-index/spec/#content-index-event",
           "support": {
@@ -63,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -99,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ContentVisibilityAutoStateChangeEvent.json b/api/ContentVisibilityAutoStateChangeEvent.json
index d09069c80d397d..d82ecb7257dddd 100644
--- a/api/ContentVisibilityAutoStateChangeEvent.json
+++ b/api/ContentVisibilityAutoStateChangeEvent.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "ContentVisibilityAutoStateChangeEvent": {
         "__compat": {
-          "description": "<code>ContentVisibilityAutoStateChangeEvent()</code> constructor",
+          "description": "`ContentVisibilityAutoStateChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ContentVisibilityAutoStateChangeEvent/ContentVisibilityAutoStateChangeEvent",
           "spec_url": "https://drafts.csswg.org/css-contain/#dom-contentvisibilityautostatechangeevent-contentvisibilityautostatechangeevent",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ConvolverNode.json b/api/ConvolverNode.json
index f94b236dc264f5..b341a5118c55b0 100644
--- a/api/ConvolverNode.json
+++ b/api/ConvolverNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "ConvolverNode": {
         "__compat": {
-          "description": "<code>ConvolverNode()</code> constructor",
+          "description": "`ConvolverNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ConvolverNode/ConvolverNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-convolvernode-constructor-convolvernode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,7 +154,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CookieChangeEvent.json b/api/CookieChangeEvent.json
index 5562aeaef65826..9ed70bfe9052a2 100644
--- a/api/CookieChangeEvent.json
+++ b/api/CookieChangeEvent.json
@@ -11,7 +11,7 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": "preview"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "CookieChangeEvent": {
         "__compat": {
-          "description": "<code>CookieChangeEvent()</code> constructor",
+          "description": "`CookieChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CookieChangeEvent/CookieChangeEvent",
           "spec_url": "https://wicg.github.io/cookie-store/#dom-cookiechangeevent-cookiechangeevent",
           "support": {
@@ -45,7 +46,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,7 +81,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -93,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +106,7 @@
         },
         "partitioned_property": {
           "__compat": {
-            "description": "<code>partitioned</code> property",
+            "description": "`partitioned` property",
             "spec_url": "https://wicg.github.io/cookie-store/#dom-cookielistitem-partitioned",
             "support": {
               "chrome": {
@@ -126,7 +129,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -147,7 +151,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -161,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,7 +176,7 @@
         },
         "partitioned_property": {
           "__compat": {
-            "description": "<code>partitioned</code> property",
+            "description": "`partitioned` property",
             "spec_url": "https://wicg.github.io/cookie-store/#dom-cookielistitem-partitioned",
             "support": {
               "chrome": {
@@ -194,7 +199,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/CookieStore.json b/api/CookieStore.json
index 398bb0b3eca12d..3aca47db277564 100644
--- a/api/CookieStore.json
+++ b/api/CookieStore.json
@@ -11,8 +11,7 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false,
-            "impl_url": "https://bugzil.la/1475599"
+            "version_added": "preview"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -27,7 +26,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,7 +37,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CookieStore/change_event",
           "spec_url": [
             "https://wicg.github.io/cookie-store/#intro-monitor",
@@ -50,7 +50,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -64,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,7 +85,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -98,7 +99,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,7 +110,7 @@
         },
         "partitioned_option": {
           "__compat": {
-            "description": "<code>partitioned</code> option",
+            "description": "`partitioned` option",
             "spec_url": "https://wicg.github.io/cookie-store/#dom-cookiestoredeleteoptions-partitioned",
             "support": {
               "chrome": {
@@ -117,7 +119,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": "preview"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -131,7 +133,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -152,7 +155,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -166,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,7 +180,7 @@
         },
         "partitioned_return_property": {
           "__compat": {
-            "description": "<code>partitioned</code> in return value",
+            "description": "`partitioned` in return value",
             "spec_url": "https://wicg.github.io/cookie-store/#dom-cookielistitem-partitioned",
             "support": {
               "chrome": {
@@ -199,7 +203,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -220,7 +225,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -234,7 +239,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -244,7 +250,7 @@
         },
         "partitioned_return_property": {
           "__compat": {
-            "description": "<code>partitioned</code> in return value",
+            "description": "`partitioned` in return value",
             "spec_url": "https://wicg.github.io/cookie-store/#dom-cookielistitem-partitioned",
             "support": {
               "chrome": {
@@ -267,7 +273,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -288,7 +295,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -302,7 +309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -312,7 +320,7 @@
         },
         "partitioned_option": {
           "__compat": {
-            "description": "<code>partitioned</code> option",
+            "description": "`partitioned` option",
             "spec_url": "https://wicg.github.io/cookie-store/#dom-cookieinit-partitioned",
             "support": {
               "chrome": {
@@ -321,7 +329,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": "preview"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -335,7 +343,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/CookieStoreManager.json b/api/CookieStoreManager.json
index ac4d2a4480da52..067f19b698f443 100644
--- a/api/CookieStoreManager.json
+++ b/api/CookieStoreManager.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,7 +129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CountQueuingStrategy.json b/api/CountQueuingStrategy.json
index 8176399f00e737..932801fe74ada0 100644
--- a/api/CountQueuingStrategy.json
+++ b/api/CountQueuingStrategy.json
@@ -31,11 +31,8 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -46,7 +43,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,7 +54,7 @@
       },
       "CountQueuingStrategy": {
         "__compat": {
-          "description": "<code>CountQueuingStrategy()</code> constructor",
+          "description": "`CountQueuingStrategy()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CountQueuingStrategy/CountQueuingStrategy",
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-cqs-constructor①",
           "tags": [
@@ -91,7 +89,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,7 +135,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -181,7 +181,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Counter.json b/api/Counter.json
index 11a95202cc1e20..6dcd76bad7923e 100644
--- a/api/Counter.json
+++ b/api/Counter.json
@@ -27,7 +27,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -98,7 +100,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,7 +137,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Credential.json b/api/Credential.json
index 4626012df8a3cb..9de1b71f53ef6e 100644
--- a/api/Credential.json
+++ b/api/Credential.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Credential",
         "spec_url": "https://w3c.github.io/webappsec-credential-management/#the-credential-interface",
+        "tags": [
+          "web-features:credential-management"
+        ],
         "support": {
           "chrome": {
             "version_added": "51"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Credential/id",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-credential-id",
+          "tags": [
+            "web-features:credential-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,8 +81,11 @@
       },
       "isConditionalMediationAvailable_static": {
         "__compat": {
-          "description": "<code>isConditionalMediationAvailable()</code> static method",
+          "description": "`isConditionalMediationAvailable()` static method",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-credential-isconditionalmediationavailable",
+          "tags": [
+            "web-features:credential-management"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -109,6 +121,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Credential/type",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-credential-type",
+          "tags": [
+            "web-features:credential-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -132,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CredentialsContainer.json b/api/CredentialsContainer.json
index 7652517cd396e7..49b02a881234c0 100644
--- a/api/CredentialsContainer.json
+++ b/api/CredentialsContainer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CredentialsContainer",
         "spec_url": "https://w3c.github.io/webappsec-credential-management/#credentialscontainer",
+        "tags": [
+          "web-features:credential-management"
+        ],
         "support": {
           "chrome": {
             "version_added": "51"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CredentialsContainer/create",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-credentialscontainer-create",
+          "tags": [
+            "web-features:credential-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -72,8 +80,11 @@
         },
         "publicKey_option": {
           "__compat": {
-            "description": "<code>publicKey</code> option",
+            "description": "`publicKey` option",
             "spec_url": "https://w3c.github.io/webauthn/#sctn-credentialcreationoptions-extension",
+            "tags": [
+              "web-features:webauthn"
+            ],
             "support": {
               "chrome": {
                 "version_added": "67"
@@ -101,7 +112,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -109,10 +121,234 @@
               "deprecated": false
             }
           },
+          "attestation": {
+            "__compat": {
+              "description": "`attestation` option",
+              "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredentialcreationoptions-attestation",
+              "tags": [
+                "web-features:webauthn"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "67"
+                },
+                "chrome_android": {
+                  "version_added": "70"
+                },
+                "edge": {
+                  "version_added": "18"
+                },
+                "firefox": {
+                  "version_added": "60"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "13"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": {
+                  "version_added": false
+                }
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            },
+            "direct": {
+              "__compat": {
+                "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredentialCreationOptions#direct",
+                "spec_url": "https://w3c.github.io/webauthn/#dom-attestationconveyancepreference-direct",
+                "tags": [
+                  "web-features:webauthn"
+                ],
+                "support": {
+                  "chrome": {
+                    "version_added": "67"
+                  },
+                  "chrome_android": {
+                    "version_added": "70"
+                  },
+                  "edge": {
+                    "version_added": "18"
+                  },
+                  "firefox": {
+                    "version_added": "60"
+                  },
+                  "firefox_android": {
+                    "version_added": false,
+                    "notes": "`credentialCreationData.attestationConveyancePreferenceOption` value \"direct\" is not supported. See https://bugzil.la/1550164"
+                  },
+                  "ie": {
+                    "version_added": false
+                  },
+                  "oculus": "mirror",
+                  "opera": "mirror",
+                  "opera_android": "mirror",
+                  "safari": {
+                    "version_added": "13"
+                  },
+                  "safari_ios": "mirror",
+                  "samsunginternet_android": "mirror",
+                  "webview_android": {
+                    "version_added": false
+                  }
+                },
+                "status": {
+                  "experimental": false,
+                  "standard_track": true,
+                  "deprecated": false
+                }
+              }
+            },
+            "enterprise": {
+              "__compat": {
+                "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredentialCreationOptions#enterprise",
+                "spec_url": "https://w3c.github.io/webauthn/#dom-attestationconveyancepreference-enterprise",
+                "tags": [
+                  "web-features:webauthn"
+                ],
+                "support": {
+                  "chrome": {
+                    "version_added": "67"
+                  },
+                  "chrome_android": {
+                    "version_added": "70"
+                  },
+                  "edge": {
+                    "version_added": "18"
+                  },
+                  "firefox": {
+                    "version_added": "60"
+                  },
+                  "firefox_android": {
+                    "version_added": false,
+                    "notes": "`credentialCreationData.attestationConveyancePreferenceOption` value \"enterprise\" is not supported. See https://bugzil.la/1550164"
+                  },
+                  "ie": {
+                    "version_added": false
+                  },
+                  "oculus": "mirror",
+                  "opera": "mirror",
+                  "opera_android": "mirror",
+                  "safari": {
+                    "version_added": "13"
+                  },
+                  "safari_ios": "mirror",
+                  "samsunginternet_android": "mirror",
+                  "webview_android": {
+                    "version_added": false
+                  }
+                },
+                "status": {
+                  "experimental": false,
+                  "standard_track": true,
+                  "deprecated": false
+                }
+              }
+            },
+            "indirect": {
+              "__compat": {
+                "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredentialCreationOptions#indirect",
+                "spec_url": "https://w3c.github.io/webauthn/#dom-attestationconveyancepreference-indirect",
+                "tags": [
+                  "web-features:webauthn"
+                ],
+                "support": {
+                  "chrome": {
+                    "version_added": "67"
+                  },
+                  "chrome_android": {
+                    "version_added": "70"
+                  },
+                  "edge": {
+                    "version_added": "18"
+                  },
+                  "firefox": {
+                    "version_added": "60"
+                  },
+                  "firefox_android": "mirror",
+                  "ie": {
+                    "version_added": false
+                  },
+                  "oculus": "mirror",
+                  "opera": "mirror",
+                  "opera_android": "mirror",
+                  "safari": {
+                    "version_added": "13"
+                  },
+                  "safari_ios": "mirror",
+                  "samsunginternet_android": "mirror",
+                  "webview_android": {
+                    "version_added": false
+                  }
+                },
+                "status": {
+                  "experimental": false,
+                  "standard_track": true,
+                  "deprecated": false
+                }
+              }
+            },
+            "none": {
+              "__compat": {
+                "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredentialCreationOptions#none",
+                "spec_url": "https://w3c.github.io/webauthn/#dom-attestationconveyancepreference-none",
+                "tags": [
+                  "web-features:webauthn"
+                ],
+                "support": {
+                  "chrome": {
+                    "version_added": "67"
+                  },
+                  "chrome_android": {
+                    "version_added": "70"
+                  },
+                  "edge": {
+                    "version_added": "18"
+                  },
+                  "firefox": {
+                    "version_added": "60"
+                  },
+                  "firefox_android": "mirror",
+                  "ie": {
+                    "version_added": false
+                  },
+                  "oculus": "mirror",
+                  "opera": "mirror",
+                  "opera_android": "mirror",
+                  "safari": {
+                    "version_added": "13"
+                  },
+                  "safari_ios": "mirror",
+                  "samsunginternet_android": "mirror",
+                  "webview_android": {
+                    "version_added": false
+                  }
+                },
+                "status": {
+                  "experimental": false,
+                  "standard_track": true,
+                  "deprecated": false
+                }
+              }
+            }
+          },
           "extensions": {
             "__compat": {
-              "description": "<code>create()</code> extensions",
+              "description": "`create()` extensions",
               "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredentialcreationoptions-extensions",
+              "tags": [
+                "web-features:webauthn"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "67"
@@ -140,7 +376,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -150,9 +387,12 @@
             },
             "appidExclude": {
               "__compat": {
-                "description": "<code>appidExclude</code> extension",
+                "description": "`appidExclude` extension",
                 "mdn_url": "https://developer.mozilla.org/docs/Web/API/Web_Authentication_API/WebAuthn_extensions#appidexclude",
                 "spec_url": "https://w3c.github.io/webauthn/#sctn-appid-exclude-extension",
+                "tags": [
+                  "web-features:webauthn"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "67"
@@ -180,7 +420,8 @@
                   "samsunginternet_android": "mirror",
                   "webview_android": {
                     "version_added": false
-                  }
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -191,9 +432,12 @@
             },
             "credProps": {
               "__compat": {
-                "description": "<code>credProps</code> extension",
+                "description": "`credProps` extension",
                 "mdn_url": "https://developer.mozilla.org/docs/Web/API/Web_Authentication_API/WebAuthn_extensions#credprops",
                 "spec_url": "https://w3c.github.io/webauthn/#sctn-authenticator-credential-properties-extension",
+                "tags": [
+                  "web-features:webauthn"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "89"
@@ -219,7 +463,8 @@
                   "samsunginternet_android": "mirror",
                   "webview_android": {
                     "version_added": false
-                  }
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -230,8 +475,11 @@
             },
             "credProtect": {
               "__compat": {
-                "description": "<code>credProtect</code> extension",
+                "description": "`credProtect` extension",
                 "mdn_url": "https://developer.mozilla.org/docs/Web/API/Web_Authentication_API/WebAuthn_extensions#credprotect",
+                "tags": [
+                  "web-features:webauthn"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "76"
@@ -255,7 +503,8 @@
                   "samsunginternet_android": "mirror",
                   "webview_android": {
                     "version_added": false
-                  }
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -266,9 +515,12 @@
             },
             "largeBlob": {
               "__compat": {
-                "description": "<code>largeBlob</code> extension",
+                "description": "`largeBlob` extension",
                 "mdn_url": "https://developer.mozilla.org/docs/Web/API/Web_Authentication_API/WebAuthn_extensions#largeblob",
                 "spec_url": "https://w3c.github.io/webauthn/#sctn-large-blob-extension",
+                "tags": [
+                  "web-features:webauthn"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "113"
@@ -286,16 +538,17 @@
                   "opera": "mirror",
                   "opera_android": "mirror",
                   "safari": {
-                    "version_added": false
+                    "version_added": "17"
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
                   "webview_android": {
                     "version_added": false
-                  }
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
-                  "experimental": true,
+                  "experimental": false,
                   "standard_track": true,
                   "deprecated": false
                 }
@@ -303,8 +556,11 @@
             },
             "minPinLength": {
               "__compat": {
-                "description": "<code>minPinLength</code> extension",
+                "description": "`minPinLength` extension",
                 "mdn_url": "https://developer.mozilla.org/docs/Web/API/Web_Authentication_API/WebAuthn_extensions#minpinlength",
+                "tags": [
+                  "web-features:webauthn"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "98"
@@ -328,7 +584,8 @@
                   "samsunginternet_android": "mirror",
                   "webview_android": {
                     "version_added": false
-                  }
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -339,9 +596,12 @@
             },
             "payment": {
               "__compat": {
-                "description": "<code>payment</code> extension",
+                "description": "`payment` extension",
                 "mdn_url": "https://developer.mozilla.org/docs/Web/API/Web_Authentication_API/WebAuthn_extensions#payment",
                 "spec_url": "https://w3c.github.io/secure-payment-confirmation/#sctn-payment-extension-registration",
+                "tags": [
+                  "web-features:webauthn"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "95"
@@ -365,7 +625,8 @@
                   "samsunginternet_android": "mirror",
                   "webview_android": {
                     "version_added": false
-                  }
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -378,6 +639,9 @@
           "requireResidentKey": {
             "__compat": {
               "spec_url": "https://w3c.github.io/webauthn/#dom-authenticatorselectioncriteria-requireresidentkey",
+              "tags": [
+                "web-features:webauthn"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "89"
@@ -403,7 +667,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -415,6 +680,9 @@
           "residentKey": {
             "__compat": {
               "spec_url": "https://w3c.github.io/webauthn/#dom-authenticatorselectioncriteria-residentkey",
+              "tags": [
+                "web-features:webauthn"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "89"
@@ -443,7 +711,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -458,6 +727,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CredentialsContainer/get",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-credentialscontainer-get",
+          "tags": [
+            "web-features:credential-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -481,7 +753,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -491,8 +764,11 @@
         },
         "identity_option": {
           "__compat": {
-            "description": "<code>identity</code> option",
-            "spec_url": "https://fedidcg.github.io/FedCM/#dom-credentialrequestoptions-identity",
+            "description": "`identity` option",
+            "spec_url": "https://w3c-fedid.github.io/FedCM/#dom-credentialrequestoptions-identity",
+            "tags": [
+              "web-features:fedcm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -516,7 +792,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -526,8 +803,11 @@
           },
           "context_option": {
             "__compat": {
-              "description": "<code>identity.context</code>",
-              "spec_url": "https://fedidcg.github.io/FedCM/#dom-identitycredentialrequestoptions-context",
+              "description": "`identity.context`",
+              "spec_url": "https://w3c-fedid.github.io/FedCM/#dom-identitycredentialrequestoptions-context",
+              "tags": [
+                "web-features:fedcm"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "116"
@@ -551,7 +831,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -586,7 +867,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -597,8 +879,11 @@
           },
           "loginHint": {
             "__compat": {
-              "description": "<code>identity.providers.loginHint</code>",
-              "spec_url": "https://fedidcg.github.io/FedCM/#dom-identityproviderrequestoptions-loginhint",
+              "description": "`identity.providers.loginHint`",
+              "spec_url": "https://w3c-fedid.github.io/FedCM/#dom-identityproviderrequestoptions-loginhint",
+              "tags": [
+                "web-features:fedcm"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "116"
@@ -622,7 +907,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -634,8 +920,11 @@
         },
         "otp_option": {
           "__compat": {
-            "description": "<code>otp</code> option",
+            "description": "`otp` option",
             "spec_url": "https://wicg.github.io/web-otp/#dom-credentialrequestoptions-otp",
+            "tags": [
+              "web-features:web-otp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "93"
@@ -661,7 +950,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -672,8 +962,11 @@
         },
         "publicKey_option": {
           "__compat": {
-            "description": "<code>publicKey</code> option",
+            "description": "`publicKey` option",
             "spec_url": "https://w3c.github.io/webauthn/#sctn-credentialrequestoptions-extension",
+            "tags": [
+              "web-features:webauthn"
+            ],
             "support": {
               "chrome": {
                 "version_added": "67"
@@ -701,7 +994,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -711,8 +1005,11 @@
           },
           "extensions": {
             "__compat": {
-              "description": "<code>get()</code> extensions",
+              "description": "`get()` extensions",
               "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredentialrequestoptions-extensions",
+              "tags": [
+                "web-features:webauthn"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "67"
@@ -740,7 +1037,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -750,8 +1048,11 @@
             },
             "appid": {
               "__compat": {
-                "description": "<code>appid</code> extension",
+                "description": "`appid` extension",
                 "spec_url": "https://w3c.github.io/webauthn/#sctn-appid-extension",
+                "tags": [
+                  "web-features:webauthn"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "67"
@@ -779,7 +1080,8 @@
                   "samsunginternet_android": "mirror",
                   "webview_android": {
                     "version_added": false
-                  }
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -790,8 +1092,11 @@
             },
             "largeBlob": {
               "__compat": {
-                "description": "<code>largeBlob</code> extension",
+                "description": "`largeBlob` extension",
                 "spec_url": "https://w3c.github.io/webauthn/#sctn-large-blob-extension",
+                "tags": [
+                  "web-features:webauthn"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "113"
@@ -815,7 +1120,8 @@
                   "samsunginternet_android": "mirror",
                   "webview_android": {
                     "version_added": false
-                  }
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -831,6 +1137,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CredentialsContainer/preventSilentAccess",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-credentialscontainer-preventsilentaccess",
+          "tags": [
+            "web-features:credential-management"
+          ],
           "support": {
             "chrome": [
               {
@@ -864,12 +1173,13 @@
                 "version_added": "13",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "This method exists, but always rejected with a <code>NotSupportedError</code> exception."
+                "notes": "This method exists, but always rejected with a `NotSupportedError` exception."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -882,6 +1192,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CredentialsContainer/store",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-credentialscontainer-store",
+          "tags": [
+            "web-features:credential-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -903,7 +1216,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CropTarget.json b/api/CropTarget.json
index ac8770a4940f12..54602597b73555 100644
--- a/api/CropTarget.json
+++ b/api/CropTarget.json
@@ -26,7 +26,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -36,7 +37,7 @@
       },
       "fromElement_static": {
         "__compat": {
-          "description": "<code>fromElement()</code> static method",
+          "description": "`fromElement()` static method",
           "spec_url": "https://w3c.github.io/mediacapture-region/#dom-croptarget-fromelement",
           "support": {
             "chrome": {
@@ -61,7 +62,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Crypto.json b/api/Crypto.json
index 97a12e50ceb355..2e684d29712226 100644
--- a/api/Crypto.json
+++ b/api/Crypto.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Crypto",
         "spec_url": "https://w3c.github.io/webcrypto/#crypto-interface",
+        "tags": [
+          "web-features:web-cryptography"
+        ],
         "support": {
           "chrome": {
             "version_added": "11"
@@ -17,7 +20,7 @@
               "version_added": "1.0",
               "version_removed": "1.11",
               "partial_implementation": true,
-              "notes": "<code>Crypto</code> is not a concrete interface, but its methods are available on <code>Window.crypto</code>."
+              "notes": "`Crypto` is not a concrete interface, but its methods are available on `Window.crypto`."
             }
           ],
           "edge": {
@@ -33,14 +36,14 @@
           "nodejs": [
             {
               "version_added": "19.0.0",
-              "notes": "<code>Crypto</code> is not a concrete interface, but its methods are available on the global <code>crypto</code> object."
+              "notes": "`Crypto` is not a concrete interface, but its methods are available on the global `crypto` object."
             },
             {
               "alternative_name": "crypto.webcrypto",
               "version_added": "15.0.0",
               "version_removed": "19.0.0",
               "partial_implementation": true,
-              "notes": "<code>Crypto</code> is not a concrete interface, but calling <code>require('crypto').webcrypto</code> returns an instance of the <code>Crypto</code> class."
+              "notes": "`Crypto` is not a concrete interface, but calling `require('crypto').webcrypto` returns an instance of the `Crypto` class."
             }
           ],
           "oculus": "mirror",
@@ -55,7 +58,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -65,9 +69,12 @@
       },
       "getRandomValues": {
         "__compat": {
-          "description": "<code>getRandomValues()</code>",
+          "description": "`getRandomValues()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Crypto/getRandomValues",
           "spec_url": "https://w3c.github.io/webcrypto/#Crypto-method-getRandomValues",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "11"
@@ -101,7 +108,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -112,9 +120,12 @@
       },
       "randomUUID": {
         "__compat": {
-          "description": "<code>randomUUID()</code>",
+          "description": "`randomUUID()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Crypto/randomUUID",
           "spec_url": "https://w3c.github.io/webcrypto/#Crypto-method-randomUUID",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "92"
@@ -138,7 +149,7 @@
               {
                 "version_added": "16.7.0",
                 "version_removed": "19.0.0",
-                "notes": "From version 14.17.0, a similar method is available as <a href='https://nodejs.org/docs/latest-v14.x/api/crypto.html#crypto_crypto'><code>crypto.randomUUID()</code></a>."
+                "notes": "From version 14.17.0, a similar method is available as [`crypto.randomUUID()`](https://nodejs.org/docs/latest-v14.x/api/crypto.html#crypto_crypto)."
               }
             ],
             "oculus": "mirror",
@@ -149,7 +160,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,6 +174,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Crypto/subtle",
           "spec_url": "https://w3c.github.io/webcrypto/#Crypto-attribute-subtle",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -198,7 +213,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -209,6 +225,9 @@
         "secure_context_required": {
           "__compat": {
             "description": "Secure context required",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -236,7 +255,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/api/CryptoKey.json b/api/CryptoKey.json
index 71009b4f1cebb4..8a24ee4bad4a0c 100644
--- a/api/CryptoKey.json
+++ b/api/CryptoKey.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CryptoKey",
         "spec_url": "https://w3c.github.io/webcrypto/#cryptokey-interface",
+        "tags": [
+          "web-features:web-cryptography"
+        ],
         "support": {
           "chrome": {
             "version_added": "37"
@@ -22,9 +25,16 @@
           "ie": {
             "version_added": false
           },
-          "nodejs": {
-            "version_added": "15.0.0"
-          },
+          "nodejs": [
+            {
+              "version_added": "19.0.0"
+            },
+            {
+              "version_added": "15.0.0",
+              "partial_implementation": true,
+              "notes": "Available as a part of the `crypto` module."
+            }
+          ],
           "oculus": "mirror",
           "opera": "mirror",
           "opera_android": "mirror",
@@ -33,7 +43,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +56,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CryptoKey/algorithm",
           "spec_url": "https://w3c.github.io/webcrypto/#dom-cryptokey-algorithm",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -74,7 +88,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +102,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CryptoKey/extractable",
           "spec_url": "https://w3c.github.io/webcrypto/#dom-cryptokey-extractable",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -99,7 +117,7 @@
               {
                 "version_added": "1.12",
                 "partial_implementation": true,
-                "notes": "The only supported value for this property is <code>true</code>."
+                "notes": "The only supported value for this property is `true`."
               }
             ],
             "edge": {
@@ -123,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CryptoKey/type",
           "spec_url": "https://w3c.github.io/webcrypto/#dom-cryptokey-type",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -165,7 +187,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,6 +201,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CryptoKey/usages",
           "spec_url": "https://w3c.github.io/webcrypto/#dom-cryptokey-usages",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -207,7 +233,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CustomElementRegistry.json b/api/CustomElementRegistry.json
index 80a887bc42785f..c6e49922bc7192 100644
--- a/api/CustomElementRegistry.json
+++ b/api/CustomElementRegistry.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -112,7 +115,10 @@
         },
         "disabledFeatures_static_property": {
           "__compat": {
-            "description": "Supports <code>disabledFeatures</code> static property",
+            "description": "Supports `disabledFeatures` static property",
+            "tags": [
+              "web-features:autonomous-custom-elements"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -134,7 +140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -148,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomElementRegistry/get",
           "spec_url": "https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-get-dev",
+          "tags": [
+            "web-features:autonomous-custom-elements"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -167,11 +177,12 @@
             "safari": {
               "version_added": "10.1",
               "partial_implementation": true,
-              "notes": "Supports 'Autonomous custom elements' but not 'Customized built-in elements'. See <a href='https://webkit.org/b/182671'>bug 182671</a>."
+              "notes": "Supports 'Autonomous custom elements' but not 'Customized built-in elements'. See [bug 182671](https://webkit.org/b/182671)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -184,6 +195,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomElementRegistry/getName",
           "spec_url": "https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-getname",
+          "tags": [
+            "web-features:autonomous-custom-elements"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -207,7 +221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -220,6 +235,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomElementRegistry/upgrade",
           "spec_url": "https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-upgrade-dev",
+          "tags": [
+            "web-features:autonomous-custom-elements"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -241,7 +259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,6 +273,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomElementRegistry/whenDefined",
           "spec_url": "https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-whendefined-dev",
+          "tags": [
+            "web-features:autonomous-custom-elements"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -275,7 +297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CustomEvent.json b/api/CustomEvent.json
index 3fcd0d2fc4fc76..69a484262d3982 100644
--- a/api/CustomEvent.json
+++ b/api/CustomEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomEvent",
         "spec_url": "https://dom.spec.whatwg.org/#interface-customevent",
+        "tags": [
+          "web-features:events"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -22,15 +25,9 @@
           "ie": {
             "version_added": "9"
           },
-          "nodejs": [
-            {
-              "version_added": "18.7.0"
-            },
-            {
-              "version_added": "16.17.0",
-              "version_removed": "17.0.0"
-            }
-          ],
+          "nodejs": {
+            "version_added": "19.0.0"
+          },
           "oculus": "mirror",
           "opera": {
             "version_added": "11"
@@ -47,7 +44,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -57,9 +55,12 @@
       },
       "CustomEvent": {
         "__compat": {
-          "description": "<code>CustomEvent()</code> constructor",
+          "description": "`CustomEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomEvent/CustomEvent",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-customevent-customevent",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "15"
@@ -78,15 +79,9 @@
             "ie": {
               "version_added": false
             },
-            "nodejs": [
-              {
-                "version_added": "18.7.0"
-              },
-              {
-                "version_added": "16.17.0",
-                "version_removed": "17.0.0"
-              }
-            ],
+            "nodejs": {
+              "version_added": "19.0.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "11.6"
@@ -99,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,6 +107,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -129,6 +128,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": "19.0.0"
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -137,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,6 +153,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomEvent/detail",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-customevent-detail②",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -168,15 +174,9 @@
             "ie": {
               "version_added": "9"
             },
-            "nodejs": [
-              {
-                "version_added": "18.7.0"
-              },
-              {
-                "version_added": "16.17.0",
-                "version_removed": "17.0.0"
-              }
-            ],
+            "nodejs": {
+              "version_added": "19.0.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "11.6"
@@ -193,7 +193,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,6 +225,9 @@
             "ie": {
               "version_added": "9"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "11"
@@ -242,7 +246,8 @@
             },
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/CustomStateSet.json b/api/CustomStateSet.json
index c770b545549a51..81a5ec199fc461 100644
--- a/api/CustomStateSet.json
+++ b/api/CustomStateSet.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -323,7 +331,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,7 +369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -397,7 +407,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMError.json b/api/DOMError.json
index 8500cb5c6896ea..1e025dd3769428 100644
--- a/api/DOMError.json
+++ b/api/DOMError.json
@@ -43,7 +43,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -77,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -112,7 +114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMException.json b/api/DOMException.json
index b90737ecc07eb7..00e99f1b90c408 100644
--- a/api/DOMException.json
+++ b/api/DOMException.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMException",
         "spec_url": "https://webidl.spec.whatwg.org/#idl-DOMException",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -37,7 +40,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,9 +51,12 @@
       },
       "DOMException": {
         "__compat": {
-          "description": "<code>DOMException()</code> constructor",
+          "description": "`DOMException()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMException/DOMException",
           "spec_url": "https://webidl.spec.whatwg.org/#dom-domexception-domexception",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -77,7 +84,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +116,9 @@
             "ie": {
               "version_added": "9"
             },
+            "nodejs": {
+              "version_added": "17.0.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1"
@@ -120,7 +131,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -133,6 +145,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMException/message",
           "spec_url": "https://webidl.spec.whatwg.org/#dom-domexception-message",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -166,7 +181,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -179,6 +195,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMException/name",
           "spec_url": "https://webidl.spec.whatwg.org/#dom-domexception-name",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -212,7 +231,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,8 +243,11 @@
       },
       "serializable_object": {
         "__compat": {
-          "description": "<code>DOMException</code> is serializable",
+          "description": "`DOMException` is serializable",
           "spec_url": "https://html.spec.whatwg.org/multipage/structured-data.html#serializable-objects",
+          "tags": [
+            "web-features:serializable-errors"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -249,7 +272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMImplementation.json b/api/DOMImplementation.json
index f4296935884b43..b9be286603f10f 100644
--- a/api/DOMImplementation.json
+++ b/api/DOMImplementation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMImplementation",
         "spec_url": "https://dom.spec.whatwg.org/#interface-domimplementation",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMImplementation/createDocument",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domimplementation-createdocument②",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMImplementation/createDocumentType",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domimplementation-createdocumenttype①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMImplementation/createHTMLDocument",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domimplementation-createhtmldocument①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -137,7 +152,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "The <code>title</code> parameter is required, but can be empty string."
+              "notes": "The `title` parameter is required, but can be empty string."
             },
             "oculus": "mirror",
             "opera": {
@@ -151,7 +166,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,7 +190,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Since Firefox 19, <code>hasFeature()</code> mostly returns <code>true</code>."
+              "notes": "Since Firefox 19, `hasFeature()` mostly returns `true`."
             },
             "firefox_android": {
               "version_added": "4"
@@ -194,7 +210,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMMatrix.json b/api/DOMMatrix.json
index c5451ade53579b..3571255f5fb9f3 100644
--- a/api/DOMMatrix.json
+++ b/api/DOMMatrix.json
@@ -119,7 +119,8 @@
             }
           ],
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -129,7 +130,7 @@
       },
       "DOMMatrix": {
         "__compat": {
-          "description": "<code>DOMMatrix()</code> constructor",
+          "description": "`DOMMatrix()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMMatrix/DOMMatrix",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrix-dommatrix",
           "support": {
@@ -247,7 +248,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -280,7 +282,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,7 +317,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -348,7 +352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -382,7 +387,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -416,7 +422,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -450,7 +457,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -484,7 +492,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -495,7 +504,7 @@
       },
       "fromFloat32Array_static": {
         "__compat": {
-          "description": "<code>fromFloat32Array()</code> static method",
+          "description": "`fromFloat32Array()` static method",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrix-fromfloat32array",
           "support": {
             "chrome": {
@@ -518,7 +527,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -529,7 +539,7 @@
       },
       "fromFloat64Array_static": {
         "__compat": {
-          "description": "<code>fromFloat64Array()</code> static method",
+          "description": "`fromFloat64Array()` static method",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrix-fromfloat64array",
           "support": {
             "chrome": {
@@ -552,7 +562,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -563,7 +574,7 @@
       },
       "fromMatrix_static": {
         "__compat": {
-          "description": "<code>fromMatrix()</code> static method",
+          "description": "`fromMatrix()` static method",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrix-frommatrix",
           "support": {
             "chrome": {
@@ -586,7 +597,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -619,7 +631,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -653,7 +666,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -687,7 +701,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -721,7 +736,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -755,7 +771,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -789,7 +806,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -823,7 +841,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -857,7 +876,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -891,7 +911,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -925,7 +946,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -959,7 +981,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -993,7 +1016,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1027,7 +1051,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1061,7 +1086,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1095,7 +1121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1129,7 +1156,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1163,7 +1191,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1196,7 +1225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1229,7 +1259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1262,7 +1293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1295,7 +1327,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1328,7 +1361,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1339,7 +1373,7 @@
       },
       "scale3dSelf": {
         "__compat": {
-          "description": "<code>scale3dSelf()</code>",
+          "description": "`scale3dSelf()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrix-scale3dself",
           "support": {
             "chrome": {
@@ -1349,12 +1383,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "33",
-              "notes": "Starting in Firefox 69, the first parameter (<code>scale</code>) is now optional with a default value of 1, per the specification. Previously it was required."
-            },
-            "firefox_android": {
-              "version_added": "33",
-              "notes": "Firefox for Android requires the first parameter (<code>scale</code>)."
+              "notes": "Starting in Firefox 69, the first parameter (`scale`) is now optional with a default value of 1, per the specification. Previously it was required."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -1366,7 +1397,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1377,7 +1409,7 @@
       },
       "scaleSelf": {
         "__compat": {
-          "description": "<code>scaleSelf()</code>",
+          "description": "`scaleSelf()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrix-scaleself",
           "support": {
             "chrome": {
@@ -1387,13 +1419,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "33",
-              "notes": "Firefox 69 introduced support for the modern six-parameter syntax for <code>scaleSelf()</code>. Previously, it only supported the older three-parameter syntax: <code>scale(<em>scaleX</em>[, <em>originX</em>][, <em>originY</em>]]])</code>."
-            },
-            "firefox_android": {
-              "version_added": "33",
-              "partial_implementation": true,
-              "notes": "Firefox for Android only supports the older three-parameter syntax for <code>scaleSelf()</code>: <code>scale(<em>scaleX</em>[, <em>originX</em>][, <em>originY</em>]]])</code>, and not the six-parameter syntax."
+              "notes": "Firefox 69 introduced support for the modern six-parameter syntax for `scaleSelf()`. Previously, it only supported the older three-parameter syntax: `scale(scaleX[, originX][, originY]]])`."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -1405,7 +1433,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1438,7 +1467,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1471,7 +1501,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1504,7 +1535,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1537,7 +1569,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMMatrixReadOnly.json b/api/DOMMatrixReadOnly.json
index 30ca7a22f4540e..8cd64faac9d862 100644
--- a/api/DOMMatrixReadOnly.json
+++ b/api/DOMMatrixReadOnly.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "DOMMatrixReadOnly": {
         "__compat": {
-          "description": "<code>DOMMatrixReadOnly()</code> constructor",
+          "description": "`DOMMatrixReadOnly()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/DOMMatrixReadOnly",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-dommatrixreadonly",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,7 +129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -160,7 +164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -194,7 +199,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -228,7 +234,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,7 +269,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -296,7 +304,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -307,7 +316,7 @@
       },
       "flipX": {
         "__compat": {
-          "description": "<code>flipX()</code>",
+          "description": "`flipX()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/flipX",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-flipx",
           "support": {
@@ -331,7 +340,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -342,7 +352,7 @@
       },
       "flipY": {
         "__compat": {
-          "description": "<code>flipY()</code>",
+          "description": "`flipY()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-flipy",
           "support": {
             "chrome": {
@@ -365,7 +375,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -376,7 +387,7 @@
       },
       "fromFloat32Array_static": {
         "__compat": {
-          "description": "<code>fromFloat32Array()</code> static method",
+          "description": "`fromFloat32Array()` static method",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-fromfloat32array",
           "support": {
             "chrome": {
@@ -399,7 +410,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -410,7 +422,7 @@
       },
       "fromFloat64Array_static": {
         "__compat": {
-          "description": "<code>fromFloat64Array()</code> static method",
+          "description": "`fromFloat64Array()` static method",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-fromfloat64array",
           "support": {
             "chrome": {
@@ -433,7 +445,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -444,7 +457,7 @@
       },
       "fromMatrix_static": {
         "__compat": {
-          "description": "<code>fromMatrix()</code> static method",
+          "description": "`fromMatrix()` static method",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-frommatrix",
           "support": {
             "chrome": {
@@ -467,7 +480,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -478,7 +492,7 @@
       },
       "inverse": {
         "__compat": {
-          "description": "<code>inverse()</code>",
+          "description": "`inverse()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-inverse",
           "support": {
             "chrome": {
@@ -501,7 +515,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -534,7 +549,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -567,7 +583,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -601,7 +618,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -635,7 +653,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -669,7 +688,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -703,7 +723,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -737,7 +758,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -771,7 +793,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -805,7 +828,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -839,7 +863,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -873,7 +898,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -907,7 +933,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -941,7 +968,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -975,7 +1003,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1009,7 +1038,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1043,7 +1073,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1077,7 +1108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1111,7 +1143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1122,7 +1155,7 @@
       },
       "multiply": {
         "__compat": {
-          "description": "<code>multiply()</code>",
+          "description": "`multiply()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-multiply",
           "support": {
             "chrome": {
@@ -1145,7 +1178,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1156,7 +1190,7 @@
       },
       "rotate": {
         "__compat": {
-          "description": "<code>rotate()</code>",
+          "description": "`rotate()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotate",
           "support": {
             "chrome": {
@@ -1179,7 +1213,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1190,7 +1225,7 @@
       },
       "rotateAxisAngle": {
         "__compat": {
-          "description": "<code>rotateAxisAngle()</code>",
+          "description": "`rotateAxisAngle()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotateaxisangle",
           "support": {
             "chrome": {
@@ -1213,7 +1248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1224,7 +1260,7 @@
       },
       "rotateFromVector": {
         "__compat": {
-          "description": "<code>rotateFromVector()</code>",
+          "description": "`rotateFromVector()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-rotatefromvector",
           "support": {
             "chrome": {
@@ -1247,7 +1283,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1258,7 +1295,7 @@
       },
       "scale": {
         "__compat": {
-          "description": "<code>scale()</code>",
+          "description": "`scale()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/scale",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-scale",
           "support": {
@@ -1269,12 +1306,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "33",
-              "notes": "Firefox 69 introduced support for the modern six-parameter syntax for <code>scale()</code>. Previously, it only supported the older three-parameter syntax: <code>scale(<em>scaleX</em>[, <em>originX</em>][, <em>originY</em>]]])</code>."
-            },
-            "firefox_android": {
-              "version_added": "33",
-              "notes": "Firefox for Android 79 introduced support for the modern six-parameter syntax for <code>scale()</code>. Previously, it only supported the older three-parameter syntax: <code>scale(<em>scaleX</em>[, <em>originX</em>][, <em>originY</em>]]])</code>."
+              "notes": "Firefox 69 introduced support for the modern six-parameter syntax for `scale()`. Previously, it only supported the older three-parameter syntax: `scale(scaleX[, originX][, originY]]])`."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -1286,7 +1320,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1297,7 +1332,7 @@
       },
       "scale3d": {
         "__compat": {
-          "description": "<code>scale3d()</code>",
+          "description": "`scale3d()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-scale3d",
           "support": {
             "chrome": {
@@ -1307,12 +1342,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "33",
-              "notes": "Starting in Firefox 69, the first parameter (<code>scale</code>) is now optional with a default value of 1, per the specification. Previously it was required."
-            },
-            "firefox_android": {
-              "version_added": "33",
-              "notes": "Starting in Firefox for Android 79, the first parameter (<code>scale</code>) is now optional with a default value of 1, per the specification. Previously it was required."
+              "notes": "Starting in Firefox 69, the first parameter (`scale`) is now optional with a default value of 1, per the specification. Previously it was required."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -1324,7 +1356,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1335,7 +1368,7 @@
       },
       "scaleNonUniform": {
         "__compat": {
-          "description": "<code>scaleNonUniform()</code>",
+          "description": "`scaleNonUniform()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-scalenonuniform",
           "support": {
             "chrome": {
@@ -1358,7 +1391,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1369,7 +1403,7 @@
       },
       "skewX": {
         "__compat": {
-          "description": "<code>skewX()</code>",
+          "description": "`skewX()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-skewx",
           "support": {
             "chrome": {
@@ -1379,12 +1413,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "33",
-              "notes": "Before Firefox 69, the <code>sx</code> parameter was required; you may now call <code>skewX()</code> with no inputs. A value of 0 is correctly assumed."
-            },
-            "firefox_android": {
-              "version_added": "33",
-              "notes": "Before Firefox for Android 79, the <code>sx</code> parameter was required; you may now call <code>skewX()</code> with no inputs. A value of 0 is correctly assumed."
+              "notes": "Before Firefox 69, the `sx` parameter was required; you may now call `skewX()` with no inputs. A value of 0 is correctly assumed."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -1396,7 +1427,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1407,7 +1439,7 @@
       },
       "skewY": {
         "__compat": {
-          "description": "<code>skewY()</code>",
+          "description": "`skewY()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-skewy",
           "support": {
             "chrome": {
@@ -1417,12 +1449,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "33",
-              "notes": "Before Firefox 69, the <code>sy</code> parameter was required; you may now call <code>skewY()</code> with no inputs. A value of 0 is correctly assumed."
-            },
-            "firefox_android": {
-              "version_added": "33",
-              "notes": "Before Firefox for Android 79, the <code>sy</code> parameter was required; you may now call <code>skewY()</code> with no inputs. A value of 0 is correctly assumed."
+              "notes": "Before Firefox 69, the `sy` parameter was required; you may now call `skewY()` with no inputs. A value of 0 is correctly assumed."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -1434,7 +1463,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1445,7 +1475,7 @@
       },
       "toFloat32Array": {
         "__compat": {
-          "description": "<code>toFloat32Array()</code>",
+          "description": "`toFloat32Array()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-tofloat32array",
           "support": {
             "chrome": {
@@ -1468,7 +1498,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1479,7 +1510,7 @@
       },
       "toFloat64Array": {
         "__compat": {
-          "description": "<code>toFloat64Array()</code>",
+          "description": "`toFloat64Array()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-tofloat64array",
           "support": {
             "chrome": {
@@ -1502,7 +1533,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1513,7 +1545,7 @@
       },
       "toJSON": {
         "__compat": {
-          "description": "<code>toJSON()</code>",
+          "description": "`toJSON()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-tojson",
           "support": {
             "chrome": {
@@ -1536,7 +1568,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1547,7 +1580,7 @@
       },
       "toString": {
         "__compat": {
-          "description": "<code>toString()</code>",
+          "description": "`toString()`",
           "support": {
             "chrome": {
               "version_added": "61"
@@ -1569,7 +1602,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1580,7 +1614,7 @@
       },
       "transformPoint": {
         "__compat": {
-          "description": "<code>transformPoint()</code>",
+          "description": "`transformPoint()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-transformpoint",
           "support": {
             "chrome": {
@@ -1603,7 +1637,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1614,7 +1649,7 @@
       },
       "translate": {
         "__compat": {
-          "description": "<code>translate()</code>",
+          "description": "`translate()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/translate",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-translate",
           "support": {
@@ -1638,7 +1673,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMParser.json b/api/DOMParser.json
index 0217ec090f39ff..732081ffa5a6f9 100644
--- a/api/DOMParser.json
+++ b/api/DOMParser.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMParser",
         "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-parsing-and-serialization",
+        "tags": [
+          "web-features:domparser"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,9 +45,12 @@
       },
       "DOMParser": {
         "__compat": {
-          "description": "<code>DOMParser()</code> constructor",
+          "description": "`DOMParser()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMParser/DOMParser",
           "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-constructor-dev",
+          "tags": [
+            "web-features:domparser"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,6 +92,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMParser/parseFromString",
           "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring-dev",
+          "tags": [
+            "web-features:domparser"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -111,7 +122,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -121,7 +133,10 @@
         },
         "html": {
           "__compat": {
-            "description": "HTML (<code>text/html</code>) support",
+            "description": "HTML (`text/html`) support",
+            "tags": [
+              "web-features:domparser"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -149,7 +164,8 @@
               "samsunginternet_android": {
                 "version_added": "3.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -160,7 +176,10 @@
         },
         "svg": {
           "__compat": {
-            "description": "SVG (<code>image/svg+xml</code>) support",
+            "description": "SVG (`image/svg+xml`) support",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -188,7 +207,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -199,7 +219,10 @@
         },
         "xml": {
           "__compat": {
-            "description": "XML (<code>application/xml</code>) support",
+            "description": "XML (`application/xml`) support",
+            "tags": [
+              "web-features:domparser"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -227,7 +250,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/api/DOMPoint.json b/api/DOMPoint.json
index df50b8b333c426..c64eae74d28942 100644
--- a/api/DOMPoint.json
+++ b/api/DOMPoint.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "DOMPoint": {
         "__compat": {
-          "description": "<code>DOMPoint()</code> constructor",
+          "description": "`DOMPoint()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMPoint/DOMPoint",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dompoint-dompoint",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +106,7 @@
       },
       "fromPoint_static": {
         "__compat": {
-          "description": "<code>fromPoint()</code> static method",
+          "description": "`fromPoint()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMPoint/fromPoint_static",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dompoint-frompoint",
           "support": {
@@ -127,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -229,7 +235,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -263,7 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMPointReadOnly.json b/api/DOMPointReadOnly.json
index 5338dc137a28fc..4efb2faa3d7c60 100644
--- a/api/DOMPointReadOnly.json
+++ b/api/DOMPointReadOnly.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "DOMPointReadOnly": {
         "__compat": {
-          "description": "<code>DOMPointReadOnly()</code> constructor",
+          "description": "`DOMPointReadOnly()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/DOMPointReadOnly",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dompointreadonly-dompointreadonly",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +106,7 @@
       },
       "fromPoint_static": {
         "__compat": {
-          "description": "<code>fromPoint()</code> static method",
+          "description": "`fromPoint()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/fromPoint_static",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dompointreadonly-frompoint",
           "support": {
@@ -127,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +142,7 @@
       },
       "matrixTransform": {
         "__compat": {
-          "description": "<code>matrixTransform()</code>",
+          "description": "`matrixTransform()`",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dompointreadonly-matrixtransform",
           "support": {
             "chrome": {
@@ -161,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -172,7 +177,7 @@
       },
       "toJSON": {
         "__compat": {
-          "description": "<code>toJSON()</code>",
+          "description": "`toJSON()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/toJSON",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-dompointreadonly-tojson",
           "support": {
@@ -196,7 +201,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -230,7 +236,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -264,7 +271,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -298,7 +306,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -332,7 +341,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMQuad.json b/api/DOMQuad.json
index c0e1b9714bb627..5c4e53f7c3630a 100644
--- a/api/DOMQuad.json
+++ b/api/DOMQuad.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,8 @@
       },
       "DOMQuad": {
         "__compat": {
-          "description": "<code>DOMQuad()</code> constructor",
+          "description": "`DOMQuad()` constructor",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMQuad/DOMQuad",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domquad-domquad",
           "support": {
             "chrome": {
@@ -58,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +106,7 @@
       },
       "fromQuad_static": {
         "__compat": {
-          "description": "<code>fromQuad()</code> static method",
+          "description": "`fromQuad()` static method",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domquad-fromquad",
           "support": {
             "chrome": {
@@ -125,7 +129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,7 +141,7 @@
       },
       "fromRect_static": {
         "__compat": {
-          "description": "<code>fromRect()</code> static method",
+          "description": "`fromRect()` static method",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domquad-fromrect",
           "support": {
             "chrome": {
@@ -159,7 +164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -170,7 +176,8 @@
       },
       "getBounds": {
         "__compat": {
-          "description": "<code>getBounds()</code>",
+          "description": "`getBounds()`",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMQuad/getBounds",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domquad-getbounds",
           "support": {
             "chrome": {
@@ -193,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -204,6 +212,7 @@
       },
       "p1": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMQuad/p1",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domquad-p1",
           "support": {
             "chrome": {
@@ -213,12 +222,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "31",
-              "notes": "Before Firefox 69, the default value of <code>p1</code> through <code>p4</code> was undefined; now <code>DOMQuadInit</code> defines these as <code>false</code>."
-            },
-            "firefox_android": {
-              "version_added": "31",
-              "notes": "Before Firefox for Android 79, the default value of <code>p1</code> through <code>p4</code> was undefined; now <code>DOMQuadInit</code> defines these as <code>false</code>."
+              "notes": "Before Firefox 69, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -230,7 +236,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,6 +248,7 @@
       },
       "p2": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMQuad/p2",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domquad-p2",
           "support": {
             "chrome": {
@@ -250,12 +258,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "31",
-              "notes": "Before Firefox 69, the default value of <code>p1</code> through <code>p4</code> was undefined; now <code>DOMQuadInit</code> defines these as <code>false</code>."
-            },
-            "firefox_android": {
-              "version_added": "31",
-              "notes": "Before Firefox for Android 79, the default value of <code>p1</code> through <code>p4</code> was undefined; now <code>DOMQuadInit</code> defines these as <code>false</code>."
+              "notes": "Before Firefox 69, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -267,7 +272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -278,6 +284,7 @@
       },
       "p3": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMQuad/p3",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domquad-p3",
           "support": {
             "chrome": {
@@ -287,12 +294,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "31",
-              "notes": "Before Firefox 69, the default value of <code>p1</code> through <code>p4</code> was undefined; now <code>DOMQuadInit</code> defines these as <code>false</code>."
-            },
-            "firefox_android": {
-              "version_added": "31",
-              "notes": "Before Firefox for Android 79, the default value of <code>p1</code> through <code>p4</code> was undefined; now <code>DOMQuadInit</code> defines these as <code>false</code>."
+              "notes": "Before Firefox 69, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -304,7 +308,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +320,7 @@
       },
       "p4": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMQuad/p4",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domquad-p4",
           "support": {
             "chrome": {
@@ -324,12 +330,9 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "31",
-              "notes": "Before Firefox 69, the default value of <code>p1</code> through <code>p4</code> was undefined; now <code>DOMQuadInit</code> defines these as <code>false</code>."
-            },
-            "firefox_android": {
-              "version_added": "31",
-              "notes": "Before Firefox for Android 79, the default value of <code>p1</code> through <code>p4</code> was undefined; now <code>DOMQuadInit</code> defines these as <code>false</code>."
+              "notes": "Before Firefox 69, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`."
             },
+            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -341,7 +344,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -352,7 +356,8 @@
       },
       "toJSON": {
         "__compat": {
-          "description": "<code>toJSON()</code>",
+          "description": "`toJSON()`",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMQuad/toJSON",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domquad-tojson",
           "support": {
             "chrome": {
@@ -375,7 +380,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMRect.json b/api/DOMRect.json
index e9e0e10d86cf45..70c4d8afd17a81 100644
--- a/api/DOMRect.json
+++ b/api/DOMRect.json
@@ -83,7 +83,8 @@
               "version_added": "2",
               "version_removed": "61"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -93,7 +94,7 @@
       },
       "DOMRect": {
         "__compat": {
-          "description": "<code>DOMRect()</code> constructor",
+          "description": "`DOMRect()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRect/DOMRect",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrect-domrect",
           "support": {
@@ -117,7 +118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,7 +152,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +164,7 @@
       },
       "fromRect_static": {
         "__compat": {
-          "description": "<code>fromRect()</code> static method",
+          "description": "`fromRect()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRect/fromRect_static",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrect-fromrect",
           "support": {
@@ -185,7 +188,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -196,6 +200,7 @@
       },
       "height": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRect/height",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrect-height",
           "support": {
             "chrome": {
@@ -226,7 +231,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +243,7 @@
       },
       "width": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRect/width",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrect-width",
           "support": {
             "chrome": {
@@ -267,7 +274,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -278,6 +286,7 @@
       },
       "x": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRect/x",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrect-x",
           "support": {
             "chrome": {
@@ -300,7 +309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -311,6 +321,7 @@
       },
       "y": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRect/y",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrect-y",
           "support": {
             "chrome": {
@@ -333,7 +344,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMRectList.json b/api/DOMRectList.json
index f110b564d5d095..5fafc66f14237f 100644
--- a/api/DOMRectList.json
+++ b/api/DOMRectList.json
@@ -2,6 +2,7 @@
   "api": {
     "DOMRectList": {
       "__compat": {
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRectList",
         "spec_url": "https://drafts.fxtf.org/geometry/#DOMRectList",
         "support": {
           "chrome": [
@@ -91,7 +92,8 @@
               "version_added": "≤37",
               "version_removed": "61"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -101,6 +103,7 @@
       },
       "item": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRectList/item",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrectlist-item",
           "support": {
             "chrome": {
@@ -133,7 +136,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,6 +148,7 @@
       },
       "length": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRectList/length",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrectlist-length",
           "support": {
             "chrome": {
@@ -176,7 +181,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMRectReadOnly.json b/api/DOMRectReadOnly.json
index 15f811adcd7790..b77addec6cd507 100644
--- a/api/DOMRectReadOnly.json
+++ b/api/DOMRectReadOnly.json
@@ -88,7 +88,8 @@
               "version_added": "2",
               "version_removed": "61"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -98,7 +99,7 @@
       },
       "DOMRectReadOnly": {
         "__compat": {
-          "description": "<code>DOMRectReadOnly()</code> constructor",
+          "description": "`DOMRectReadOnly()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/DOMRectReadOnly",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrectreadonly-domrectreadonly",
           "support": {
@@ -122,7 +123,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -197,7 +200,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,7 +212,7 @@
       },
       "fromRect_static": {
         "__compat": {
-          "description": "<code>fromRect()</code> static method",
+          "description": "`fromRect()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/fromRect_static",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrectreadonly-fromrect",
           "support": {
@@ -232,7 +236,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +279,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -316,7 +322,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -358,7 +365,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -369,6 +377,7 @@
       },
       "toJSON": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/toJSON",
           "spec_url": "https://drafts.fxtf.org/geometry/#dom-domrectreadonly-tojson",
           "support": {
             "chrome": {
@@ -391,7 +400,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -433,7 +443,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -475,7 +486,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -509,7 +521,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -543,7 +556,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMStringList.json b/api/DOMStringList.json
index 0b9d94a4515c25..99c0fbd6b8cc59 100644
--- a/api/DOMStringList.json
+++ b/api/DOMStringList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMStringList",
         "spec_url": "https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#the-domstringlist-interface",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMStringList/contains",
           "spec_url": "https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#dom-domstringlist-contains",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -74,7 +81,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMStringList/item",
           "spec_url": "https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#dom-domstringlist-item",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -116,7 +127,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -129,6 +141,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMStringList/length",
           "spec_url": "https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#dom-domstringlist-length",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -158,7 +173,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DOMStringMap.json b/api/DOMStringMap.json
index 9072610869b8fc..d09ea0f85d680a 100644
--- a/api/DOMStringMap.json
+++ b/api/DOMStringMap.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMStringMap",
         "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes:domstringmap-3",
+        "tags": [
+          "web-features:dataset"
+        ],
         "support": {
           "chrome": {
             "version_added": "7"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/DOMTokenList.json b/api/DOMTokenList.json
index 5ba5551a8c9a55..1b0f8de90c8e25 100644
--- a/api/DOMTokenList.json
+++ b/api/DOMTokenList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList",
         "spec_url": "https://dom.spec.whatwg.org/#interface-domtokenlist",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "8"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/add",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domtokenlist-add①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -74,7 +81,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,7 +92,10 @@
         },
         "multiple_parameters": {
           "__compat": {
-            "description": "Multiple parameters for <code>add()</code>",
+            "description": "Multiple parameters for `add()`",
+            "tags": [
+              "web-features:dom"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -108,7 +119,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -122,6 +134,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/contains",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domtokenlist-contains①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -151,7 +166,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +179,9 @@
       "entries": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/entries",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "42"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "forEach": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/forEach",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "42"
@@ -221,7 +244,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -234,6 +258,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/item",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domtokenlist-item①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -263,7 +290,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -275,6 +303,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/keys",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "42"
@@ -298,7 +329,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -311,6 +343,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/length",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domtokenlist-length①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -340,7 +375,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -353,6 +389,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/remove",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domtokenlist-remove①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -382,7 +421,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -392,7 +432,10 @@
         },
         "multiple_parameters": {
           "__compat": {
-            "description": "Multiple parameters for <code>remove()</code>",
+            "description": "Multiple parameters for `remove()`",
+            "tags": [
+              "web-features:dom"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -416,7 +459,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -430,6 +474,9 @@
         "__compat": {
           "description": "Removes duplicates",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList#Trimming_of_whitespace_and_removal_of_duplicates",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -453,7 +500,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -466,6 +514,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/replace",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domtokenlist-replace①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -489,7 +540,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -499,7 +551,10 @@
         },
         "boolean_value": {
           "__compat": {
-            "description": "<code>return()</code>'s value is a boolean, not void as it used to be.",
+            "description": "`return()`'s value is a boolean, not void as it used to be.",
+            "tags": [
+              "web-features:dom"
+            ],
             "support": {
               "chrome": {
                 "version_added": "67"
@@ -523,7 +578,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -537,6 +593,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/supports",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domtokenlist-supports①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -560,7 +619,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -573,6 +633,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/toggle",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domtokenlist-toggle①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -602,7 +665,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -612,7 +676,10 @@
         },
         "force_parameter": {
           "__compat": {
-            "description": "<code>force</code> parameter",
+            "description": "`force` parameter",
+            "tags": [
+              "web-features:dom"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -636,7 +703,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -649,6 +717,9 @@
       "toString": {
         "__compat": {
           "spec_url": "https://dom.spec.whatwg.org/#DOMTokenList-stringification-behavior",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -676,7 +747,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -689,6 +761,9 @@
         "__compat": {
           "description": "Trims whitespace",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList#Trimming_of_whitespace_and_removal_of_duplicates",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "48"
@@ -712,7 +787,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -725,10 +801,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/value",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-domtokenlist-value②",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "50",
-              "notes": "Before Chrome 50, this property was part of the deprecated child <code>DOMSettableTokenList</code> interface."
+              "notes": "Before Chrome 50, this property was part of the deprecated child `DOMSettableTokenList` interface."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -749,7 +828,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -761,6 +841,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DOMTokenList/values",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "42"
@@ -784,7 +867,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -796,6 +880,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "42"
@@ -819,7 +906,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DataCue.json b/api/DataCue.json
index c3feb3feb57038..ef6d7286dfbfb6 100644
--- a/api/DataCue.json
+++ b/api/DataCue.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,7 +38,7 @@
       },
       "DataCue": {
         "__compat": {
-          "description": "<code>DataCue()</code> constructor",
+          "description": "`DataCue()` constructor",
           "spec_url": "https://wicg.github.io/datacue/#dom-datacue-datacue",
           "support": {
             "chrome": {
@@ -60,7 +61,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -93,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -126,7 +129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/DataTransfer.json b/api/DataTransfer.json
index e619b04da3dcc3..544365051cd044 100644
--- a/api/DataTransfer.json
+++ b/api/DataTransfer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer",
         "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#the-datatransfer-interface",
+        "tags": [
+          "web-features:draganddrop"
+        ],
         "support": {
           "chrome": {
             "version_added": "3"
@@ -14,7 +17,7 @@
           },
           "firefox": {
             "version_added": "3.5",
-            "notes": "As of Firefox 52, the <a href='https://developer.mozilla.org/docs/Web/API/DataTransfer/types'><code>DataTransfer.types</code></a> property returns a frozen array of <a href='https://developer.mozilla.org/docs/Web/API/DOMString'><code>DOMString</code></a>s as per spec, rather than a <a href='https://developer.mozilla.org/docs/Web/API/DOMStringList'><code>DOMStringList</code></a>."
+            "notes": "As of Firefox 52, the [`DataTransfer.types`](https://developer.mozilla.org/docs/Web/API/DataTransfer/types) property returns a frozen array of [`DOMString`](https://developer.mozilla.org/docs/Web/API/DOMString)s as per spec, rather than a [`DOMStringList`](https://developer.mozilla.org/docs/Web/API/DOMStringList)."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -34,7 +37,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,9 +48,12 @@
       },
       "DataTransfer": {
         "__compat": {
-          "description": "<code>DataTransfer()</code> constructor",
+          "description": "`DataTransfer()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/DataTransfer",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -74,7 +81,8 @@
             "samsunginternet_android": {
               "version_added": "8.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -120,6 +129,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/clearData",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-cleardata-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -149,7 +161,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,6 +175,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/dropEffect",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-dropeffect-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -191,7 +207,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -204,6 +221,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/effectAllowed",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-effectallowed-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -233,7 +253,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -246,6 +267,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/files",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-files-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -275,7 +299,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -288,6 +313,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/getData",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-getdata-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -317,7 +345,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -330,6 +359,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/items",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-items-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -361,7 +393,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -393,7 +426,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -425,7 +459,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -457,7 +492,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -470,6 +506,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/setData",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-setdata-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -501,7 +540,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -514,6 +554,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/setDragImage",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-setdragimage-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -543,7 +586,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -556,6 +600,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransfer/types",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-types-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -571,14 +618,14 @@
             "ie": {
               "version_added": "10",
               "notes": [
-                "The property returns a <a href='https://developer.mozilla.org/docs/Web/API/DOMStringList'><code>DOMStringList</code></a>.",
-                "<code>Text</code> is returned instead of <code>text/plain</code>"
+                "The property returns a [`DOMStringList`](https://developer.mozilla.org/docs/Web/API/DOMStringList).",
+                "`Text` is returned instead of `text/plain`"
               ]
             },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1",
-              "notes": "As of Opera 12, <code>Text</code> is returned instead of <code>text/plain</code>"
+              "notes": "As of Opera 12, `Text` is returned instead of `text/plain`"
             },
             "opera_android": {
               "version_added": "≤12.1"
@@ -590,7 +637,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DataTransferItem.json b/api/DataTransferItem.json
index 8ae42d0b46f890..58a8ccdd86ddf8 100644
--- a/api/DataTransferItem.json
+++ b/api/DataTransferItem.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItem",
         "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#the-datatransferitem-interface",
+        "tags": [
+          "web-features:draganddrop"
+        ],
         "support": {
           "chrome": {
             "version_added": "11"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItem/getAsFile",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransferitem-getasfile-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "11"
@@ -74,7 +81,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,12 +95,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItem/getAsFileSystemHandle",
           "spec_url": "https://wicg.github.io/file-system-access/#dom-datatransferitem-getasfilesystemhandle",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "132"
             },
             "edge": "mirror",
             "firefox": {
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItem/getAsString",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransferitem-getasstring-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "11"
@@ -152,7 +167,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -165,6 +181,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItem/kind",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransferitem-kind-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "11"
@@ -194,7 +213,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,6 +227,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItem/type",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransferitem-type-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "11"
@@ -236,7 +259,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +298,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DataTransferItemList.json b/api/DataTransferItemList.json
index 971e365fd834df..4fcc23c8e5719b 100644
--- a/api/DataTransferItemList.json
+++ b/api/DataTransferItemList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItemList",
         "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#the-datatransferitemlist-interface",
+        "tags": [
+          "web-features:draganddrop"
+        ],
         "support": {
           "chrome": {
             "version_added": "13"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItemList/add",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransferitemlist-add-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItemList/clear",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransferitemlist-clear-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItemList/length",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransferitemlist-length-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -150,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +179,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DataTransferItemList/remove",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransferitemlist-remove-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "31"
@@ -190,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DecompressionStream.json b/api/DecompressionStream.json
index c8894394077cc7..8a24a648fce0dc 100644
--- a/api/DecompressionStream.json
+++ b/api/DecompressionStream.json
@@ -29,11 +29,8 @@
             },
             {
               "version_added": "17.0.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -44,7 +41,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,7 +52,7 @@
       },
       "DecompressionStream": {
         "__compat": {
-          "description": "<code>DecompressionStream()</code> constructor",
+          "description": "`DecompressionStream()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DecompressionStream/DecompressionStream",
           "spec_url": "https://compression.spec.whatwg.org/#dom-decompressionstream-decompressionstream",
           "tags": [
@@ -87,7 +85,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +127,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -176,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -218,7 +219,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -262,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -305,7 +308,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DedicatedWorkerGlobalScope.json b/api/DedicatedWorkerGlobalScope.json
index d682f6d2b7d1cf..04f412b490f08d 100644
--- a/api/DedicatedWorkerGlobalScope.json
+++ b/api/DedicatedWorkerGlobalScope.json
@@ -36,7 +36,8 @@
             "version_added": "5"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -74,7 +75,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "67"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,12 +133,15 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/message_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-message",
             "https://html.spec.whatwg.org/multipage/workers.html#handler-dedicatedworkerglobalscope-onmessage"
           ],
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -170,7 +176,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -181,7 +188,7 @@
       },
       "messageerror_event": {
         "__compat": {
-          "description": "<code>messageerror</code> event",
+          "description": "`messageerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/messageerror_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-messageerror",
@@ -214,12 +221,12 @@
               "version_added": "47"
             },
             "safari": {
-              "version_added": "16.4",
-              "impl_url": "https://webkit.org/b/171216"
+              "version_added": "16.4"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -258,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -271,6 +279,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/postMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#dom-dedicatedworkerglobalscope-postmessage-dev",
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -279,15 +290,15 @@
             "deno": [
               {
                 "version_added": "1.14",
-                "notes": "The <code>message</code> parameter does not support cloning <code>Blob</code> values."
+                "notes": "The `message` parameter does not support cloning `Blob` values."
               },
               {
                 "version_added": "1.12",
                 "version_removed": "1.14",
                 "partial_implementation": true,
                 "notes": [
-                  "The <code>message</code> parameter does not support cloning <code>Blob</code> values.",
-                  "The <code>transfer</code> parameter does not accept <code>ArrayBuffer</code> items. Passing an <code>ArrayBuffer</code> results in an error being thrown."
+                  "The `message` parameter does not support cloning `Blob` values.",
+                  "The `transfer` parameter does not accept `ArrayBuffer` items. Passing an `ArrayBuffer` results in an error being thrown."
                 ]
               },
               {
@@ -295,8 +306,8 @@
                 "version_removed": "1.12",
                 "partial_implementation": true,
                 "notes": [
-                  "The <code>message</code> parameter does not support cloning <code>SharedArrayBuffer</code> or <code>Blob</code> values.",
-                  "The <code>transfer</code> parameter is ignored."
+                  "The `message` parameter does not support cloning `SharedArrayBuffer` or `Blob` values.",
+                  "The `transfer` parameter is ignored."
                 ]
               },
               {
@@ -304,8 +315,8 @@
                 "version_removed": "1.10",
                 "partial_implementation": true,
                 "notes": [
-                  "Data passed in the <code>message</code> parameter is serialized with JSON, not the structured clone algorithm.",
-                  "The <code>transfer</code> parameter is ignored."
+                  "Data passed in the `message` parameter is serialized with JSON, not the structured clone algorithm.",
+                  "The `transfer` parameter is ignored."
                 ]
               }
             ],
@@ -333,7 +344,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -351,7 +363,8 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "69"
+              "version_added": "69",
+              "notes": "Not supported in nested Web Workers. See [bug 41483010](https://crbug.com/41483010)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -372,7 +385,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "67"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -383,7 +397,7 @@
       },
       "rtctransform_event": {
         "__compat": {
-          "description": "<code>rtctransform</code> event",
+          "description": "`rtctransform` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/rtctransform_event",
           "spec_url": "https://w3c.github.io/webrtc-encoded-transform/#dom-dedicatedworkerglobalscope-onrtctransform",
           "tags": [
@@ -410,7 +424,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DelayNode.json b/api/DelayNode.json
index 1547bc20021463..8b664ea697f862 100644
--- a/api/DelayNode.json
+++ b/api/DelayNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "DelayNode": {
         "__compat": {
-          "description": "<code>DelayNode()</code> constructor",
+          "description": "`DelayNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DelayNode/DelayNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-delaynode-constructor-delaynode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/InkPresenter.json b/api/DelegatedInkTrailPresenter.json
similarity index 74%
rename from api/InkPresenter.json
rename to api/DelegatedInkTrailPresenter.json
index 5f1a5650478599..8ea0aaec129425 100644
--- a/api/InkPresenter.json
+++ b/api/DelegatedInkTrailPresenter.json
@@ -1,9 +1,12 @@
 {
   "api": {
-    "InkPresenter": {
+    "DelegatedInkTrailPresenter": {
       "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/InkPresenter",
-        "spec_url": "https://wicg.github.io/ink-enhancement/#ink-presenter",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/DelegatedInkTrailPresenter",
+        "spec_url": "https://wicg.github.io/ink-enhancement/#delegatedinktrailpresenter",
+        "tags": [
+          "web-features:ink"
+        ],
         "support": {
           "chrome": {
             "version_added": "94"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,15 +41,16 @@
       },
       "expectedImprovement": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/InkPresenter/expectedImprovement",
-          "spec_url": "https://wicg.github.io/ink-enhancement/#dom-inkpresenter-expectedimprovement",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DelegatedInkTrailPresenter/expectedImprovement",
           "support": {
             "chrome": {
-              "version_added": "94"
+              "version_added": "94",
+              "version_removed": "130"
             },
             "chrome_android": "mirror",
             "edge": {
-              "version_added": "93"
+              "version_added": "93",
+              "version_removed": "130"
             },
             "firefox": {
               "version_added": false
@@ -62,19 +67,23 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
+            "experimental": false,
+            "standard_track": false,
+            "deprecated": true
           }
         }
       },
       "presentationArea": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/InkPresenter/presentationArea",
-          "spec_url": "https://wicg.github.io/ink-enhancement/#dom-inkpresenter-presentationarea",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DelegatedInkTrailPresenter/presentationArea",
+          "spec_url": "https://wicg.github.io/ink-enhancement/#dom-delegatedinktrailpresenter-presentationarea",
+          "tags": [
+            "web-features:ink"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -98,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -109,8 +119,11 @@
       },
       "updateInkTrailStartPoint": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/InkPresenter/updateInkTrailStartPoint",
-          "spec_url": "https://wicg.github.io/ink-enhancement/#dom-inkpresenter-updateinktrailstartpoint",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/DelegatedInkTrailPresenter/updateInkTrailStartPoint",
+          "spec_url": "https://wicg.github.io/ink-enhancement/#dom-delegatedinktrailpresenter-updateinktrailstartpoint",
+          "tags": [
+            "web-features:ink"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -134,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/DeprecationReportBody.json b/api/DeprecationReportBody.json
index e02d6b1ec55729..b2bba0988a04d2 100644
--- a/api/DeprecationReportBody.json
+++ b/api/DeprecationReportBody.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -74,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -115,7 +117,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -156,7 +159,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -197,7 +201,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -238,7 +243,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -279,7 +285,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -313,7 +320,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/DeviceMotionEvent.json b/api/DeviceMotionEvent.json
index 8f33abae18edf4..1948b1ba9e49d5 100644
--- a/api/DeviceMotionEvent.json
+++ b/api/DeviceMotionEvent.json
@@ -32,7 +32,8 @@
             "version_added": "4.2"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "DeviceMotionEvent": {
         "__compat": {
-          "description": "<code>DeviceMotionEvent()</code> constructor",
+          "description": "`DeviceMotionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DeviceMotionEvent/DeviceMotionEvent",
           "spec_url": "https://w3c.github.io/deviceorientation/#dom-devicemotionevent-devicemotionevent",
           "support": {
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,7 +111,8 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,7 +153,8 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -191,7 +195,8 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -202,7 +207,7 @@
       },
       "requestPermission_static": {
         "__compat": {
-          "description": "<code>requestPermission()</code> static method",
+          "description": "`requestPermission()` static method",
           "spec_url": "https://w3c.github.io/deviceorientation/#dom-devicemotionevent-requestpermission",
           "support": {
             "chrome": {
@@ -227,7 +232,8 @@
               "version_added": "14.5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -268,7 +274,8 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DeviceMotionEventAcceleration.json b/api/DeviceMotionEventAcceleration.json
index f5ccf209c4102b..d76ffe5763da3d 100644
--- a/api/DeviceMotionEventAcceleration.json
+++ b/api/DeviceMotionEventAcceleration.json
@@ -29,7 +29,10 @@
             "version_added": "4.2"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -66,7 +69,10 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -104,7 +110,10 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -142,7 +151,10 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/DeviceMotionEventRotationRate.json b/api/DeviceMotionEventRotationRate.json
index 0d51023fe9392c..db1a0b0e99d5ee 100644
--- a/api/DeviceMotionEventRotationRate.json
+++ b/api/DeviceMotionEventRotationRate.json
@@ -29,7 +29,10 @@
             "version_added": "4.2"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -66,7 +69,10 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -104,7 +110,10 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -142,7 +151,10 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/DeviceOrientationEvent.json b/api/DeviceOrientationEvent.json
index c1b19cd4cc1389..318a1b4b3c1787 100644
--- a/api/DeviceOrientationEvent.json
+++ b/api/DeviceOrientationEvent.json
@@ -10,7 +10,7 @@
         "support": {
           "chrome": {
             "version_added": "7",
-            "notes": "Before version 50, Chrome provided absolute values instead of relative values for this event. Developers still needing absolute values may use the <code>deviceorientationabsolute</code> event."
+            "notes": "Before version 50, Chrome provided absolute values instead of relative values for this event. Developers still needing absolute values may use the `deviceorientationabsolute` event."
           },
           "chrome_android": "mirror",
           "edge": {
@@ -18,7 +18,7 @@
           },
           "firefox": {
             "version_added": "6",
-            "notes": "Firefox 3.6, 4, and 5 supported <code>mozOrientation</code> instead of the standard DeviceOrientationEvent interface."
+            "notes": "Firefox 3.6, 4, and 5 supported `mozOrientation` instead of the standard DeviceOrientationEvent interface."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -39,12 +39,13 @@
           },
           "samsunginternet_android": {
             "version_added": "1.0",
-            "notes": "Before Samsung Internet 5.0, Samsung Internet provided absolute values instead of relative values for this event. Developers still needing absolute values may use the <code>deviceorientationabsolute</code> event."
+            "notes": "Before Samsung Internet 5.0, Samsung Internet provided absolute values instead of relative values for this event. Developers still needing absolute values may use the `deviceorientationabsolute` event."
           },
           "webview_android": {
             "version_added": "3",
-            "notes": "Before version 50, Chrome provided absolute values instead of relative values for this event. Developers still needing absolute values may use the <code>deviceorientationabsolute</code> event."
-          }
+            "notes": "Before version 50, Chrome provided absolute values instead of relative values for this event. Developers still needing absolute values may use the `deviceorientationabsolute` event."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,7 +55,7 @@
       },
       "DeviceOrientationEvent": {
         "__compat": {
-          "description": "<code>DeviceOrientationEvent()</code> constructor",
+          "description": "`DeviceOrientationEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DeviceOrientationEvent/DeviceOrientationEvent",
           "spec_url": "https://w3c.github.io/deviceorientation/#dom-deviceorientationevent-deviceorientationevent",
           "support": {
@@ -80,7 +81,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,7 +120,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +164,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -204,7 +208,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -247,7 +252,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -258,7 +264,7 @@
       },
       "requestPermission_static": {
         "__compat": {
-          "description": "<code>requestPermission()</code> static method",
+          "description": "`requestPermission()` static method",
           "spec_url": "https://w3c.github.io/deviceorientation/#dom-deviceorientationevent-requestpermission",
           "support": {
             "chrome": {
@@ -283,7 +289,8 @@
               "version_added": "14.5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/DevicePosture.json b/api/DevicePosture.json
index 11156c831d426a..ab0fdb6a85e80b 100644
--- a/api/DevicePosture.json
+++ b/api/DevicePosture.json
@@ -8,7 +8,7 @@
         ],
         "support": {
           "chrome": {
-            "version_added": false
+            "version_added": "132"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -29,7 +29,8 @@
           "samsunginternet_android": {
             "version_added": "16.2"
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,14 +40,14 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "spec_url": "https://w3c.github.io/device-posture/#dom-deviceposture-onchange",
           "tags": [
             "web-features:device-posture"
           ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "132"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -67,7 +68,8 @@
             "samsunginternet_android": {
               "version_added": "16.2"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -84,7 +86,7 @@
           ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "132"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -105,7 +107,8 @@
             "samsunginternet_android": {
               "version_added": "16.2"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Directory.json b/api/Directory.json
index a405dd8c13fea4..8f38100345a4da 100644
--- a/api/Directory.json
+++ b/api/Directory.json
@@ -23,7 +23,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -54,7 +55,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -86,7 +88,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -118,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -150,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/DirectoryEntrySync.json b/api/DirectoryEntrySync.json
index 5f46a0eeae4398..092bbb13f889b4 100644
--- a/api/DirectoryEntrySync.json
+++ b/api/DirectoryEntrySync.json
@@ -32,7 +32,8 @@
           "webview_android": {
             "prefix": "webkit",
             "version_added": "37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/DirectoryReaderSync.json b/api/DirectoryReaderSync.json
index e85d0ba190ec1f..96dd2830190cc2 100644
--- a/api/DirectoryReaderSync.json
+++ b/api/DirectoryReaderSync.json
@@ -32,7 +32,8 @@
           "webview_android": {
             "prefix": "webkit",
             "version_added": "37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/Document.json b/api/Document.json
index f4ccd134161c65..b272d418dc2efe 100644
--- a/api/Document.json
+++ b/api/Document.json
@@ -10,6 +10,9 @@
           "https://w3c.github.io/pointerlock/#extensions-to-the-document-interface",
           "https://w3c.github.io/selection-api/#extensions-to-document-interface"
         ],
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -39,7 +42,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,9 +53,12 @@
       },
       "Document": {
         "__compat": {
-          "description": "<code>Document()</code> constructor",
+          "description": "`Document()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/Document",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-document①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -75,7 +82,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -86,9 +94,12 @@
       },
       "DOMContentLoaded_event": {
         "__compat": {
-          "description": "<code>DOMContentLoaded</code> event",
+          "description": "`DOMContentLoaded` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/DOMContentLoaded_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/parsing.html#stop-parsing",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -116,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -129,6 +141,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/URL",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-url①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -156,7 +171,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -169,6 +185,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/activeElement",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-documentorshadowroot-activeelement-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -198,7 +217,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,7 +257,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -250,6 +271,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/adoptNode",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-adoptnode①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -279,7 +303,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -290,7 +315,7 @@
       },
       "afterscriptexecute_event": {
         "__compat": {
-          "description": "<code>afterscriptexecute</code> event",
+          "description": "`afterscriptexecute` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/afterscriptexecute_event",
           "support": {
             "chrome": {
@@ -313,7 +338,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -335,7 +361,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -358,7 +384,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -369,7 +395,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -380,12 +406,13 @@
                 "version_added": "1.2",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -407,7 +434,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -430,7 +457,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -441,7 +468,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -452,7 +479,7 @@
                 "version_added": "3",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": [
@@ -463,7 +490,7 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "samsunginternet_android": "mirror",
@@ -475,9 +502,10 @@
                 "version_added": "≤37",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -517,7 +545,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -530,6 +559,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/append",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-append①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -553,7 +585,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -593,7 +626,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -604,7 +638,7 @@
       },
       "beforescriptexecute_event": {
         "__compat": {
-          "description": "<code>beforescriptexecute</code> event",
+          "description": "`beforescriptexecute` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/beforescriptexecute_event",
           "support": {
             "chrome": {
@@ -627,7 +661,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -649,7 +684,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -672,7 +707,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -683,7 +718,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -694,12 +729,13 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -712,6 +748,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/body",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-body-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -728,7 +767,7 @@
                 "version_added": "1",
                 "version_removed": "60",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "firefox_android": "mirror",
@@ -747,7 +786,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -780,7 +820,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -801,7 +842,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -824,7 +865,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -835,7 +876,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -846,12 +887,13 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -888,13 +930,57 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "options_parameter": {
+          "__compat": {
+            "description": "`options` parameter",
+            "tags": [
+              "web-features:document-caretpositionfrompoint"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "128"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": [
+                {
+                  "version_added": "preview"
+                },
+                {
+                  "version_added": "131",
+                  "version_removed": "133"
+                }
+              ],
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "caretRangeFromPoint": {
@@ -927,7 +1013,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -940,6 +1027,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/characterSet",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-characterset①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -948,7 +1038,7 @@
               {
                 "alternative_name": "charset",
                 "version_added": "1",
-                "notes": "<code>charset</code> alias was made read-only in Chrome 45."
+                "notes": "`charset` alias was made read-only in Chrome 45."
               },
               {
                 "alternative_name": "inputEncoding",
@@ -1004,7 +1094,7 @@
               {
                 "alternative_name": "charset",
                 "version_added": "15",
-                "notes": "<code>charset</code> alias was made read-only in Opera 45."
+                "notes": "`charset` alias was made read-only in Opera 45."
               },
               {
                 "alternative_name": "inputEncoding",
@@ -1018,7 +1108,7 @@
               {
                 "alternative_name": "charset",
                 "version_added": "14",
-                "notes": "<code>charset</code> alias was made read-only in Opera 45."
+                "notes": "`charset` alias was made read-only in Opera 45."
               },
               {
                 "alternative_name": "inputEncoding",
@@ -1059,13 +1149,14 @@
               {
                 "alternative_name": "charset",
                 "version_added": "1",
-                "notes": "<code>charset</code> alias was made read-only in WebView 45."
+                "notes": "`charset` alias was made read-only in WebView 45."
               },
               {
                 "alternative_name": "inputEncoding",
                 "version_added": "1"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1078,6 +1169,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/childElementCount",
           "spec_url": "https://dom.spec.whatwg.org/#dom-parentnode-childelementcount",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -1101,7 +1195,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1114,6 +1209,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/children",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-children①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -1137,7 +1235,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1159,7 +1258,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -1182,7 +1281,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -1193,7 +1292,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": {
@@ -1201,7 +1300,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1214,6 +1314,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/close",
           "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-document-close-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -1223,7 +1326,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -1246,7 +1349,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -1257,7 +1360,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -1268,12 +1371,13 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1286,6 +1390,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/compatMode",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-compatmode①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1313,7 +1420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1326,6 +1434,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/contentType",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-contenttype①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "36"
@@ -1365,7 +1476,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1378,6 +1490,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/cookie",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-cookie",
+          "tags": [
+            "web-features:cookies"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1388,7 +1503,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 68, <code>cookie</code> was available only on HTML documents; it is now available on all documents, such as XML and SVG."
+              "notes": "Before Firefox 68, `cookie` was available only on HTML documents; it is now available on all documents, such as XML and SVG."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1406,7 +1521,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1419,6 +1535,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createAttribute",
           "spec_url": "https://dom.spec.whatwg.org/#dom-document-createattribute",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1453,7 +1572,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1466,6 +1586,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createAttributeNS",
           "spec_url": "https://dom.spec.whatwg.org/#dom-document-createattributens",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1493,7 +1616,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1506,6 +1630,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createCDATASection",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-createcomment①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1533,7 +1660,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1546,6 +1674,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createComment",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-createcomment①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1573,7 +1704,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1586,6 +1718,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createDocumentFragment",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-createdocumentfragment①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1613,7 +1748,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1626,6 +1762,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createElement",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-createelement①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1636,7 +1775,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Doesn't conform to the DOM spec for XUL and XHTML documents: <code>localName</code> and <code>namespaceURI</code> are not set to null on the created element."
+              "notes": "Doesn't conform to the DOM spec for XUL and XHTML documents: `localName` and `namespaceURI` are not set to null on the created element."
             },
             "firefox_android": {
               "version_added": "4"
@@ -1656,7 +1795,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1666,11 +1806,14 @@
         },
         "options_parameter": {
           "__compat": {
-            "description": "<code>options</code> parameter",
+            "description": "`options` parameter",
+            "tags": [
+              "web-features:dom"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56",
-                "notes": "For backwards compatibility, the <code>options</code> parameter can be an object or a string with the custom element tag name, although the string version is deprecated."
+                "notes": "For backwards compatibility, the `options` parameter can be an object or a string with the custom element tag name, although the string version is deprecated."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1690,7 +1833,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1704,6 +1848,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createElementNS",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-createelementns①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1714,7 +1861,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Doesn't conform to the DOM spec for XUL and XHTML documents: <code>localName</code> and <code>namespaceURI</code> are not set to null on the created element."
+              "notes": "Doesn't conform to the DOM spec for XUL and XHTML documents: `localName` and `namespaceURI` are not set to null on the created element."
             },
             "firefox_android": {
               "version_added": "4"
@@ -1734,7 +1881,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1744,11 +1892,14 @@
         },
         "options_parameter": {
           "__compat": {
-            "description": "<code>options</code> parameter",
+            "description": "`options` parameter",
+            "tags": [
+              "web-features:dom"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56",
-                "notes": "For backwards compatibility, the <code>options</code> parameter can be an object or a string with the custom element tag name, although the string version is deprecated."
+                "notes": "For backwards compatibility, the `options` parameter can be an object or a string with the custom element tag name, although the string version is deprecated."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1768,7 +1919,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1812,12 +1964,13 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
-            "deprecated": false
+            "deprecated": true
           }
         }
       },
@@ -1825,6 +1978,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createExpression",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathevaluatorbase-createexpression",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1856,7 +2012,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1869,6 +2026,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createNodeIterator",
           "spec_url": "https://dom.spec.whatwg.org/#dom-document-createnodeiterator",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1898,7 +2058,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1942,7 +2103,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1955,6 +2117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createProcessingInstruction",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-createprocessinginstruction①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1982,7 +2147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1995,6 +2161,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createRange",
           "spec_url": "https://dom.spec.whatwg.org/#dom-document-createrange",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2022,7 +2191,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2035,6 +2205,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createTextNode",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-createtextnode①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2062,7 +2235,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2108,7 +2282,8 @@
               "version_added": "≤3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2147,7 +2322,8 @@
               "version_added": "≤3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2160,6 +2336,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/createTreeWalker",
           "spec_url": "https://dom.spec.whatwg.org/#dom-document-createtreewalker",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2189,7 +2368,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2199,7 +2379,10 @@
         },
         "whatToShow_filter_parameters_optional": {
           "__compat": {
-            "description": "<code>whatToShow</code> and <code>filter</code> parameters are optional",
+            "description": "`whatToShow` and `filter` parameters are optional",
+            "tags": [
+              "web-features:dom"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -2231,7 +2414,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2245,6 +2429,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/currentScript",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-currentscript-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -2268,7 +2455,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2281,6 +2469,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/defaultView",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-document-defaultview-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2308,7 +2499,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2348,7 +2540,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2361,6 +2554,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/dir",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-dir",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -2370,7 +2566,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -2394,7 +2590,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -2405,7 +2601,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -2416,12 +2612,13 @@
                 "version_added": "1",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2434,6 +2631,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/doctype",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-doctype①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2461,7 +2661,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2474,6 +2675,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/documentElement",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-documentelement①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2501,7 +2705,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2514,6 +2719,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/documentURI",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-documenturi①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2543,7 +2751,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2559,7 +2768,7 @@
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Since Chrome 115, setting <code>domain</code> has no effect, unless the website has opted into <a href='https://developer.mozilla.org/docs/Web/HTTP/Headers/Origin-Agent-Cluster'>origin-keyed agent clusters</a>."
+              "notes": "Since Chrome 115, setting `domain` has no effect, unless the website has opted into [origin-keyed agent clusters](https://developer.mozilla.org/docs/Web/HTTP/Headers/Origin-Agent-Cluster)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -2567,7 +2776,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "From Firefox 62, if the domain cannot be identified, <code>domain</code> returns an empty string instead of <code>null</code>. See <a href='https://bugzil.la/819475'>bug 819475</a>."
+              "notes": "From Firefox 62, if the domain cannot be identified, `domain` returns an empty string instead of `null`. See [bug 819475](https://bugzil.la/819475)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2585,7 +2794,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2598,10 +2808,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/elementFromPoint",
           "spec_url": "https://drafts.csswg.org/cssom-view/#dom-document-elementfrompoint",
+          "tags": [
+            "web-features:element-from-point"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Before Chrome 66, this method returned <code>null</code> when the element was a child of a host node. See <a href='https://crbug.com/759947'>bug 759947</a>."
+              "notes": "Before Chrome 66, this method returned `null` when the element was a child of a host node. See [bug 40537452](https://crbug.com/40537452)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -2617,11 +2830,11 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1",
-              "notes": "Before Opera 53, this method returned <code>null</code> when the element was a child of a host node. See <a href='https://crbug.com/759947'>bug 759947</a>."
+              "notes": "Before Opera 53, this method returned `null` when the element was a child of a host node. See [bug 40537452](https://crbug.com/40537452)."
             },
             "opera_android": {
               "version_added": "≤12.1",
-              "notes": "Before Opera Android 47, this method returned <code>null</code> when the element was a child of a host node. See <a href='https://crbug.com/759947'>bug 759947</a>."
+              "notes": "Before Opera Android 47, this method returned `null` when the element was a child of a host node. See [bug 40537452](https://crbug.com/40537452)."
             },
             "safari": {
               "version_added": "4"
@@ -2630,8 +2843,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37",
-              "notes": "Before WebView 66, this method returned <code>null</code> when the element was a child of a host node. See <a href='https://crbug.com/759947'>bug 759947</a>."
-            }
+              "notes": "Before WebView 66, this method returned `null` when the element was a child of a host node. See [bug 40537452](https://crbug.com/40537452)."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2644,10 +2858,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/elementsFromPoint",
           "spec_url": "https://drafts.csswg.org/cssom-view/#dom-document-elementsfrompoint",
+          "tags": [
+            "web-features:element-from-point"
+          ],
           "support": {
             "chrome": {
               "version_added": "43",
-              "notes": "Before Chrome 66, this method returned <code>null</code> when the element was a child of a host node. See <a href='https://crbug.com/759947'>bug 759947</a>."
+              "notes": "Before Chrome 66, this method returned `null` when the element was a child of a host node. See [bug 40537452](https://crbug.com/40537452)."
             },
             "chrome_android": "mirror",
             "edge": [
@@ -2658,7 +2875,7 @@
                 "prefix": "ms",
                 "version_added": "12",
                 "version_removed": "79",
-                "notes": "Returns a <code>NodeList</code> instead of an array. See <a href='https://msdn.microsoft.com/en-us/library/hh772121(v=vs.85).aspx'>the MSDN documentation</a>. Returns <code>null</code> when the point provided has no elements beneath it (e.g., when given a point outside the document)."
+                "notes": "Returns a `NodeList` instead of an array. See [the MSDN documentation](https://msdn.microsoft.com/en-us/library/hh772121(v=vs.85).aspx). Returns `null` when the point provided has no elements beneath it (e.g., when given a point outside the document)."
               }
             ],
             "firefox": {
@@ -2668,7 +2885,7 @@
             "ie": {
               "prefix": "ms",
               "version_added": "10",
-              "notes": "Returns a <code>NodeList</code> instead of an array. See <a href='https://msdn.microsoft.com/en-us/library/hh772121(v=vs.85).aspx'>the MSDN documentation</a>. Returns <code>null</code> when the point provided has no elements beneath it (e.g., when given a point outside the document)."
+              "notes": "Returns a `NodeList` instead of an array. See [the MSDN documentation](https://msdn.microsoft.com/en-us/library/hh772121(v=vs.85).aspx). Returns `null` when the point provided has no elements beneath it (e.g., when given a point outside the document)."
             },
             "oculus": "mirror",
             "opera": {
@@ -2682,7 +2899,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2695,6 +2913,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/embeds",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-embeds-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -2704,7 +2925,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -2727,7 +2948,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -2738,7 +2959,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -2749,12 +2970,13 @@
                 "version_added": "2",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2787,7 +3009,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2800,6 +3023,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/evaluate",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathevaluatorbase-evaluate",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2831,7 +3057,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2843,7 +3070,6 @@
       "execCommand": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/execCommand",
-          "spec_url": "https://w3c.github.io/trusted-types/dist/spec/#dom-document-execcommand",
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2855,8 +3081,8 @@
             "firefox": {
               "version_added": "1",
               "notes": [
-                "From Firefox 82, nested calls are not supported (return <code>false</code>). See <a href='https://bugzil.la/1634262'>bug 1634262</a>.",
-                "Before Firefox 89, manipulating the content of <code>&lt;input&gt;</code> and <code>&lt;textarea&gt;</code> elements using <code>Document.execCommand()</code> commands requires workarounds (see <a href='https://bugzil.la/1220696'>bug 1220696</a>)."
+                "From Firefox 82, nested calls are not supported (return `false`). See [bug 1634262](https://bugzil.la/1634262).",
+                "Before Firefox 89, manipulating the content of `&lt;input&gt;` and `&lt;textarea&gt;` elements using `Document.execCommand()` commands requires workarounds (see [bug 1220696](https://bugzil.la/1220696))."
               ]
             },
             "firefox_android": "mirror",
@@ -2875,7 +3101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2885,7 +3112,7 @@
         },
         "copy": {
           "__compat": {
-            "description": "<code>copy</code> command",
+            "description": "`copy` command",
             "support": {
               "chrome": {
                 "version_added": "42"
@@ -2909,7 +3136,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2920,7 +3148,7 @@
         },
         "cut": {
           "__compat": {
-            "description": "<code>cut</code> command",
+            "description": "`cut` command",
             "support": {
               "chrome": {
                 "version_added": "42"
@@ -2944,7 +3172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2955,7 +3184,7 @@
         },
         "defaultParagraphSeparator": {
           "__compat": {
-            "description": "<code>defaultParagraphSeparator</code> command",
+            "description": "`defaultParagraphSeparator` command",
             "support": {
               "chrome": {
                 "version_added": false
@@ -2980,7 +3209,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2991,7 +3221,7 @@
         },
         "insertBrOnReturn": {
           "__compat": {
-            "description": "<code>insertBrOnReturn</code> command",
+            "description": "`insertBrOnReturn` command",
             "support": {
               "chrome": {
                 "version_added": false
@@ -3013,7 +3243,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3129,7 +3360,10 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -3139,7 +3373,7 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
             "tags": [
               "web-features:fullscreen"
             ],
@@ -3164,7 +3398,10 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
@@ -3207,7 +3444,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3261,7 +3499,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3301,7 +3540,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3323,7 +3563,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -3346,7 +3586,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -3357,7 +3597,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -3368,12 +3608,13 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3386,6 +3627,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/firstElementChild",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-firstelementchild①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -3409,7 +3653,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3422,6 +3667,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/fonts",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#FontFaceSet-interface",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -3443,7 +3691,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3456,6 +3705,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/forms",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-forms-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -3483,7 +3735,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3503,7 +3756,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "131"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -3518,10 +3771,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -3529,8 +3783,11 @@
       },
       "freeze_event": {
         "__compat": {
-          "description": "<code>freeze</code> event",
+          "description": "`freeze` event",
           "spec_url": "https://wicg.github.io/page-lifecycle/#dom-document-onfreeze",
+          "tags": [
+            "web-features:page-lifecycle"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -3552,7 +3809,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3638,7 +3896,10 @@
                 "alternative_name": "webkitIsFullScreen",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -3649,7 +3910,7 @@
       },
       "fullscreenchange_event": {
         "__compat": {
-          "description": "<code>fullscreenchange</code> event",
+          "description": "`fullscreenchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/fullscreenchange_event",
           "spec_url": "https://fullscreen.spec.whatwg.org/#handler-document-onfullscreenchange",
           "tags": [
@@ -3754,7 +4015,10 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -3861,7 +4125,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3958,7 +4223,10 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -3969,7 +4237,7 @@
       },
       "fullscreenerror_event": {
         "__compat": {
-          "description": "<code>fullscreenerror</code> event",
+          "description": "`fullscreenerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/fullscreenerror_event",
           "spec_url": "https://fullscreen.spec.whatwg.org/#handler-document-onfullscreenerror",
           "tags": [
@@ -4074,7 +4342,10 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -4113,12 +4384,13 @@
               {
                 "version_added": "13.1",
                 "partial_implementation": true,
-                "notes": "Implements an older version of the specification, see <a href='https://webkit.org/b/179536'>bug 179536</a>."
+                "notes": "Implements an older version of the specification, see [bug 179536](https://webkit.org/b/179536)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4158,7 +4430,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4171,6 +4444,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/getElementById",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-nonelementparentnode-getelementbyid②",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4198,7 +4474,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4211,6 +4488,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/getElementsByClassName",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-getelementsbyclassname①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4238,7 +4518,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4251,6 +4532,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/getElementsByName",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-getelementsbyname-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4258,7 +4542,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Before Edge 79, this method returns an <code>HTMLCollection</code>, not a <code>NodeList</code>."
+              "notes": "Before Edge 79, this method returns an `HTMLCollection`, not a `NodeList`."
             },
             "firefox": {
               "version_added": "1"
@@ -4266,7 +4550,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5",
-              "notes": "Returns an <code>HTMLCollection</code>, not a <code>NodeList</code>"
+              "notes": "Returns an `HTMLCollection`, not a `NodeList`"
             },
             "oculus": "mirror",
             "opera": {
@@ -4280,7 +4564,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4293,6 +4578,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/getElementsByTagName",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-getelementsbytagname①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4320,7 +4608,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4333,6 +4622,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/getElementsByTagNameNS",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-getelementsbytagnamens①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4360,7 +4652,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4373,6 +4666,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/getSelection",
           "spec_url": "https://w3c.github.io/selection-api/#dom-document-getselection",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -4402,7 +4698,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4415,6 +4712,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/hasFocus",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-document-hasfocus-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -4440,7 +4740,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4473,7 +4774,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4506,7 +4808,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4547,7 +4850,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4560,6 +4864,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/hasUnpartitionedCookieAccess",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-document-hasunpartitionedcookieaccess",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -4583,7 +4890,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4596,6 +4904,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/head",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-head-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -4627,7 +4938,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4640,6 +4952,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/hidden",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-document-hidden",
+          "tags": [
+            "web-features:page-visibility"
+          ],
           "support": {
             "chrome": [
               {
@@ -4657,7 +4972,7 @@
             "firefox": [
               {
                 "version_added": "18",
-                "notes": "Since Firefox 56 it also returns <code>true</code> on macOS when the window is completely hidden by another non-translucent application."
+                "notes": "Since Firefox 56 it also returns `true` on macOS when the window is completely hidden by another non-translucent application."
               },
               {
                 "prefix": "moz",
@@ -4689,7 +5004,8 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4702,6 +5018,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/images",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-images-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4729,7 +5048,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4742,6 +5062,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/implementation",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-implementation①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4769,7 +5092,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4782,6 +5106,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/importNode",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-document-importnode①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4809,7 +5136,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4822,6 +5150,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/lastElementChild",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-lastelementchild①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -4845,7 +5176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4858,6 +5190,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/lastModified",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-lastmodified-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4885,7 +5220,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4918,7 +5254,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4940,7 +5277,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -4963,7 +5300,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -4974,7 +5311,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -4985,12 +5322,13 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5003,6 +5341,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/links",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-links-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5030,7 +5371,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5043,6 +5385,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/location",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-location-interface",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5070,7 +5415,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5103,7 +5449,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5116,6 +5463,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/open",
           "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-document-open-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -5125,7 +5475,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -5148,7 +5498,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -5159,7 +5509,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -5170,12 +5520,13 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5186,7 +5537,7 @@
       },
       "parseHTMLUnsafe_static": {
         "__compat": {
-          "description": "<code>parseHTMLUnsafe()</code> static method",
+          "description": "`parseHTMLUnsafe()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/parseHTMLUnsafe_static",
           "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-parsehtmlunsafe",
           "tags": [
@@ -5206,7 +5557,7 @@
                 "version_added": "123",
                 "version_removed": "127",
                 "partial_implementation": true,
-                "notes": "Throws error <code>NS_ERROR_UNEXPECTED</code> (<a href='https://bugzil.la/1887817'>bug 1887817</a>.)"
+                "notes": "Throws error `NS_ERROR_UNEXPECTED` ([bug 1887817](https://bugzil.la/1887817).)"
               }
             ],
             "firefox_android": "mirror",
@@ -5221,7 +5572,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5263,7 +5615,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5305,7 +5658,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5318,6 +5672,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/plugins",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-plugins-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -5327,7 +5684,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -5350,7 +5707,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -5361,7 +5718,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -5372,7 +5729,7 @@
                 "version_added": "3",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": [
@@ -5383,11 +5740,12 @@
                 "version_added": "1",
                 "version_removed": "10.3",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5398,7 +5756,7 @@
       },
       "pointerlockchange_event": {
         "__compat": {
-          "description": "<code>pointerlockchange</code> event",
+          "description": "`pointerlockchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/pointerlockchange_event",
           "spec_url": [
             "https://w3c.github.io/pointerlock/#pointerlockchange-and-pointerlockerror-events",
@@ -5446,7 +5804,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5494,7 +5853,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5505,7 +5865,7 @@
       },
       "pointerlockerror_event": {
         "__compat": {
-          "description": "<code>pointerlockerror</code> event",
+          "description": "`pointerlockerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/pointerlockerror_event",
           "spec_url": [
             "https://w3c.github.io/pointerlock/#pointerlockchange-and-pointerlockerror-events",
@@ -5553,7 +5913,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5586,7 +5947,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5599,6 +5961,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/prepend",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-prepend①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -5622,7 +5987,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5635,6 +6001,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/prerendering",
           "spec_url": "https://wicg.github.io/nav-speculation/prerendering.html#dom-document-prerendering",
+          "tags": [
+            "web-features:speculation-rules"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -5656,7 +6025,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -5667,12 +6037,15 @@
       },
       "prerenderingchange_event": {
         "__compat": {
-          "description": "<code>prerenderingchange</code> event",
+          "description": "`prerenderingchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/prerenderingchange_event",
           "spec_url": [
             "https://wicg.github.io/nav-speculation/prerendering.html#eventdef-document-prerenderingchange",
             "https://wicg.github.io/nav-speculation/prerendering.html#dom-document-onprerenderingchange"
           ],
+          "tags": [
+            "web-features:speculation-rules"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -5694,7 +6067,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -5721,7 +6095,7 @@
               {
                 "version_added": "1",
                 "version_removed": "41",
-                "notes": "<code>queryCommandEnabled</code> with arguments <code>cut</code>, <code>copy</code> or <code>paste</code> would throw errors unless the script had special privileges."
+                "notes": "`queryCommandEnabled` with arguments `cut`, `copy` or `paste` would throw errors unless the script had special privileges."
               }
             ],
             "firefox_android": "mirror",
@@ -5740,7 +6114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5774,7 +6149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5813,7 +6189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5841,7 +6218,7 @@
                 "version_added": "1",
                 "version_removed": "41",
                 "partial_implementation": true,
-                "notes": "The <code>\"paste\"</code> command is reported as supported when the paste feature is available even if the calling script has insufficient privileges to actually perform the action."
+                "notes": "The `\"paste\"` command is reported as supported when the paste feature is available even if the calling script has insufficient privileges to actually perform the action."
               }
             ],
             "firefox_android": "mirror",
@@ -5860,7 +6237,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5898,7 +6276,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5911,6 +6290,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/querySelector",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-queryselector①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5930,7 +6312,7 @@
               {
                 "version_added": "8",
                 "partial_implementation": true,
-                "notes": "<code>querySelectorAll()</code> is supported, but only for CSS 2.1 selectors."
+                "notes": "`querySelectorAll()` is supported, but only for CSS 2.1 selectors."
               }
             ],
             "oculus": "mirror",
@@ -5945,7 +6327,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5958,6 +6341,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/querySelectorAll",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-queryselectorall①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5977,7 +6363,7 @@
               {
                 "version_added": "8",
                 "partial_implementation": true,
-                "notes": "<code>querySelectorAll()</code> is supported, but only for CSS 2.1 selectors."
+                "notes": "`querySelectorAll()` is supported, but only for CSS 2.1 selectors."
               }
             ],
             "oculus": "mirror",
@@ -5992,7 +6378,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6005,6 +6392,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/readyState",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#current-document-readiness",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6047,7 +6437,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6058,9 +6449,12 @@
       },
       "readystatechange_event": {
         "__compat": {
-          "description": "<code>readystatechange</code> event",
+          "description": "`readystatechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/readystatechange_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-readystatechange",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6090,7 +6484,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6103,6 +6498,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/referrer",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-referrer-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6130,7 +6528,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6163,7 +6562,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6184,7 +6584,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -6207,7 +6607,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -6218,7 +6618,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -6229,12 +6629,13 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6247,6 +6648,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/replaceChildren",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-replacechildren①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -6268,7 +6672,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6306,13 +6711,14 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "11.1",
-              "notes": "Client-side storage access granted per-page (<a href='https://developer.mozilla.org/docs/Web/API/Storage_Access_API#how_it_works'>see explanation</a>)"
+              "notes": "Client-side storage access granted per-page ([see explanation](https://developer.mozilla.org/docs/Web/API/Storage_Access_API#how_it_works))"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6322,8 +6728,11 @@
         },
         "types_parameter": {
           "__compat": {
-            "description": "<code>types</code> parameter",
+            "description": "`types` parameter",
             "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dictdef-storageaccesstypes",
+            "tags": [
+              "web-features:non-cookie-storage-access"
+            ],
             "support": {
               "chrome": {
                 "version_added": "125"
@@ -6349,7 +6758,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6359,8 +6769,11 @@
           },
           "types_all_parameter": {
             "__compat": {
-              "description": "<code>types.all</code> parameter",
+              "description": "`types.all` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-all",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6386,7 +6799,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6397,8 +6811,11 @@
           },
           "types_BroadcastChannel_parameter": {
             "__compat": {
-              "description": "<code>types.BroadcastChannel</code> parameter",
+              "description": "`types.BroadcastChannel` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-broadcastchannel",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6424,7 +6841,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6435,8 +6853,11 @@
           },
           "types_caches_parameter": {
             "__compat": {
-              "description": "<code>types.caches</code> parameter",
+              "description": "`types.caches` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-caches",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6462,7 +6883,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6473,8 +6895,11 @@
           },
           "types_cookies_parameter": {
             "__compat": {
-              "description": "<code>types.cookies</code> parameter",
+              "description": "`types.cookies` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-cookies",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6500,7 +6925,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6511,8 +6937,11 @@
           },
           "types_createObjectURL_parameter": {
             "__compat": {
-              "description": "<code>types.createObjectURL</code> parameter",
+              "description": "`types.createObjectURL` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-createobjecturl",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6538,7 +6967,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6549,8 +6979,11 @@
           },
           "types_estimate_parameter": {
             "__compat": {
-              "description": "<code>types.estimate</code> parameter",
+              "description": "`types.estimate` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-estimate",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6576,7 +7009,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6587,8 +7021,11 @@
           },
           "types_getDirectory_parameter": {
             "__compat": {
-              "description": "<code>types.getDirectory</code> parameter",
+              "description": "`types.getDirectory` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-getdirectory",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6614,7 +7051,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6625,8 +7063,11 @@
           },
           "types_indexedDB_parameter": {
             "__compat": {
-              "description": "<code>types.indexedDB</code> parameter",
+              "description": "`types.indexedDB` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-indexeddb",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6652,7 +7093,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6663,8 +7105,11 @@
           },
           "types_localStorage_parameter": {
             "__compat": {
-              "description": "<code>types.localStorage</code> parameter",
+              "description": "`types.localStorage` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-localstorage",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6690,7 +7135,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6701,8 +7147,11 @@
           },
           "types_locks_parameter": {
             "__compat": {
-              "description": "<code>types.locks</code> parameter",
+              "description": "`types.locks` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-locks",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6728,7 +7177,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6739,8 +7189,11 @@
           },
           "types_revokeObjectURL_parameter": {
             "__compat": {
-              "description": "<code>types.revokeObjectURL</code> parameter",
+              "description": "`types.revokeObjectURL` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-revokeobjecturl",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6766,7 +7219,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6777,8 +7231,11 @@
           },
           "types_sessionStorage_parameter": {
             "__compat": {
-              "description": "<code>types.sessionStorage</code> parameter",
+              "description": "`types.sessionStorage` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-sessionstorage",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6804,7 +7261,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6815,8 +7273,11 @@
           },
           "types_SharedWorker_parameter": {
             "__compat": {
-              "description": "<code>types.SharedWorker</code> parameter",
+              "description": "`types.SharedWorker` parameter",
               "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-storageaccesstypes-sharedworker",
+              "tags": [
+                "web-features:non-cookie-storage-access"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "125"
@@ -6842,7 +7303,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -6857,10 +7319,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/requestStorageAccessFor",
           "spec_url": "https://privacycg.github.io/requestStorageAccessFor/#dom-document-requeststorageaccessfor",
+          "tags": [
+            "web-features:storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "119",
-              "notes": "Requires the calling top-level page and the embedded document (that the storage access is being requested for) to be part of the same <a href='https://developer.mozilla.org/docs/Web/API/Storage_Access_API/Related_website_sets'>related website set</a>."
+              "notes": "Requires the calling top-level page and the embedded document (that the storage access is being requested for) to be part of the same [related website set](https://developer.mozilla.org/docs/Web/API/Storage_Access_API/Related_website_sets)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -6881,7 +7346,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -6892,8 +7358,11 @@
       },
       "resume_event": {
         "__compat": {
-          "description": "<code>resume</code> event",
+          "description": "`resume` event",
           "spec_url": "https://wicg.github.io/page-lifecycle/#dom-document-onresume",
+          "tags": [
+            "web-features:page-lifecycle"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -6915,7 +7384,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -6951,7 +7421,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6964,6 +7435,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/scripts",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-document-scripts-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6993,7 +7467,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7004,7 +7479,7 @@
       },
       "scroll_event": {
         "__compat": {
-          "description": "<code>scroll</code> event",
+          "description": "`scroll` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/scroll_event",
           "spec_url": [
             "https://drafts.csswg.org/cssom-view/#eventdef-document-scroll",
@@ -7037,7 +7512,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7048,7 +7524,7 @@
       },
       "scrollend_event": {
         "__compat": {
-          "description": "<code>scrollend</code> event",
+          "description": "`scrollend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/scrollend_event",
           "spec_url": [
             "https://drafts.csswg.org/cssom-view/#eventdef-document-scrollend",
@@ -7079,7 +7555,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7115,7 +7592,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7124,11 +7602,94 @@
           }
         }
       },
+      "scrollsnapchange_event": {
+        "__compat": {
+          "description": "`scrollsnapchange` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/scrollsnapchange_event",
+          "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#scrollsnapchange",
+          "tags": [
+            "web-features:scroll-snap-events"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1843961"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "scrollsnapchanging_event": {
+        "__compat": {
+          "description": "`scrollsnapchanging` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/scrollsnapchanging_event",
+          "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#scrollsnapchanging",
+          "tags": [
+            "web-features:scroll-snap-events"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1843961"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "securitypolicyviolation_event": {
         "__compat": {
-          "description": "<code>securitypolicyviolation</code> event",
+          "description": "`securitypolicyviolation` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/securitypolicyviolation_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onsecuritypolicyviolation",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -7150,7 +7711,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7183,7 +7745,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7194,12 +7757,15 @@
       },
       "selectionchange_event": {
         "__compat": {
-          "description": "<code>selectionchange</code> event",
+          "description": "`selectionchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/selectionchange_event",
           "spec_url": [
             "https://w3c.github.io/selection-api/#selectionchange-event",
             "https://w3c.github.io/selection-api/#dom-globaleventhandlers-onselectionchange"
           ],
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "11"
@@ -7225,7 +7791,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7248,7 +7815,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1823896"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -7262,7 +7830,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7275,6 +7844,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/styleSheets",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-documentorshadowroot-stylesheets",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7302,7 +7874,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7335,7 +7908,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7372,7 +7946,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7385,6 +7960,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/title",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#document.title",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7412,7 +7990,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7423,12 +8002,15 @@
       },
       "visibilitychange_event": {
         "__compat": {
-          "description": "<code>visibilitychange</code> event",
+          "description": "`visibilitychange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/visibilitychange_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-visibilitychange",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onvisibilitychange"
           ],
+          "tags": [
+            "web-features:page-visibility"
+          ],
           "support": {
             "chrome": [
               {
@@ -7437,13 +8019,13 @@
               {
                 "version_added": "33",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               },
               {
                 "prefix": "webkit",
                 "version_added": "13",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -7454,7 +8036,7 @@
               {
                 "version_added": "12",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -7464,7 +8046,7 @@
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+              "notes": "The `onvisibilitychange` event handler property is not supported."
             },
             "oculus": "mirror",
             "opera": [
@@ -7474,19 +8056,19 @@
               {
                 "version_added": "20",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               },
               {
                 "prefix": "webkit",
                 "version_added": "15",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               },
               {
                 "version_added": "12.1",
                 "version_removed": "15",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               }
             ],
             "opera_android": [
@@ -7496,19 +8078,19 @@
               {
                 "version_added": "20",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               },
               {
                 "prefix": "webkit",
                 "version_added": "14",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               },
               {
                 "version_added": "12.1",
                 "version_removed": "14",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               }
             ],
             "safari": [
@@ -7518,23 +8100,23 @@
               {
                 "version_added": "14",
                 "partial_implementation": true,
-                "notes": "Doesn't fire the <code>visibilitychange</code> event when navigating away from a document, so also include code to check for the <code>pagehide</code> event (which does fire for that case in all current browsers). See <a href='https://webkit.org/b/116769'>bug 116769</a>, <a href='https://webkit.org/b/151234'>bug 151234</a>, <a href='https://webkit.org/b/151610'>bug 151610</a>, and <a href='https://webkit.org/b/194897'>bug 194897</a>."
+                "notes": "Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See [bug 116769](https://webkit.org/b/116769), [bug 151234](https://webkit.org/b/151234), [bug 151610](https://webkit.org/b/151610), and [bug 194897](https://webkit.org/b/194897)."
               },
               {
                 "version_added": "10.1",
                 "partial_implementation": true,
                 "notes": [
-                  "Doesn't fire the <code>visibilitychange</code> event when navigating away from a document, so also include code to check for the <code>pagehide</code> event (which does fire for that case in all current browsers). See <a href='https://webkit.org/b/116769'>bug 116769</a>, <a href='https://webkit.org/b/151234'>bug 151234</a>, <a href='https://webkit.org/b/151610'>bug 151610</a>, and <a href='https://webkit.org/b/194897'>bug 194897</a>.",
-                  "Before Safari 14, the event does not bubble, so <code>document.addEventListener('visibilitychange', ...)</code> works, but <code>window.addEventListener('visibilitychange', ...)</code> does not."
+                  "Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See [bug 116769](https://webkit.org/b/116769), [bug 151234](https://webkit.org/b/151234), [bug 151610](https://webkit.org/b/151610), and [bug 194897](https://webkit.org/b/194897).",
+                  "Before Safari 14, the event does not bubble, so `document.addEventListener('visibilitychange', ...)` works, but `window.addEventListener('visibilitychange', ...)` does not."
                 ]
               },
               {
                 "version_added": "7",
                 "partial_implementation": true,
                 "notes": [
-                  "Doesn't fire the <code>visibilitychange</code> event when navigating away from a document, so also include code to check for the <code>pagehide</code> event (which does fire for that case in all current browsers). See <a href='https://webkit.org/b/116769'>bug 116769</a>, <a href='https://webkit.org/b/151234'>bug 151234</a>, <a href='https://webkit.org/b/151610'>bug 151610</a>, and <a href='https://webkit.org/b/194897'>bug 194897</a>.",
-                  "Before Safari 14, the event does not bubble, so <code>document.addEventListener('visibilitychange', ...)</code> works, but <code>window.addEventListener('visibilitychange', ...)</code> does not.",
-                  "The <code>onvisibilitychange</code> event handler property is not supported."
+                  "Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See [bug 116769](https://webkit.org/b/116769), [bug 151234](https://webkit.org/b/151234), [bug 151610](https://webkit.org/b/151610), and [bug 194897](https://webkit.org/b/194897).",
+                  "Before Safari 14, the event does not bubble, so `document.addEventListener('visibilitychange', ...)` works, but `window.addEventListener('visibilitychange', ...)` does not.",
+                  "The `onvisibilitychange` event handler property is not supported."
                 ]
               }
             ],
@@ -7547,15 +8129,16 @@
               {
                 "version_added": "4.4.3",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               },
               {
                 "prefix": "webkit",
                 "version_added": "≤37",
                 "partial_implementation": true,
-                "notes": "The <code>onvisibilitychange</code> event handler property is not supported."
+                "notes": "The `onvisibilitychange` event handler property is not supported."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7568,6 +8151,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/visibilityState",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-document-visibilitystate",
+          "tags": [
+            "web-features:page-visibility"
+          ],
           "support": {
             "chrome": [
               {
@@ -7636,7 +8222,8 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7658,7 +8245,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -7681,7 +8268,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -7692,7 +8279,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -7703,12 +8290,13 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7720,6 +8308,9 @@
       "wasDiscarded": {
         "__compat": {
           "spec_url": "https://wicg.github.io/page-lifecycle/#dom-document-wasdiscarded",
+          "tags": [
+            "web-features:page-lifecycle"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -7741,7 +8332,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -7781,7 +8373,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7803,7 +8396,7 @@
                 "version_added": "1",
                 "version_removed": "64",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -7826,7 +8419,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "opera_android": [
@@ -7837,7 +8430,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "47",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari": [
@@ -7848,12 +8441,13 @@
                 "version_added": "1",
                 "version_removed": "11",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLDocument'><code>HTMLDocument</code></a>, not all <code>Document</code> objects."
+                "notes": "Only supported for [`HTMLDocument`](https://developer.mozilla.org/docs/Web/API/HTMLDocument), not all `Document` objects."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7892,7 +8486,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7930,7 +8525,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7969,7 +8565,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DocumentFragment.json b/api/DocumentFragment.json
index 5fafc9e735dd41..c2f5aaedc992e6 100644
--- a/api/DocumentFragment.json
+++ b/api/DocumentFragment.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment",
         "spec_url": "https://dom.spec.whatwg.org/#interface-documentfragment",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,9 +47,12 @@
       },
       "DocumentFragment": {
         "__compat": {
-          "description": "<code>DocumentFragment()</code> constructor",
+          "description": "`DocumentFragment()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/DocumentFragment",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-documentfragment-documentfragment①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -82,6 +90,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/append",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-append①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -105,7 +116,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +130,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/childElementCount",
           "spec_url": "https://dom.spec.whatwg.org/#dom-parentnode-childelementcount",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -141,7 +156,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,6 +170,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/children",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-children①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -177,7 +196,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,6 +210,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/firstElementChild",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-firstelementchild①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -213,7 +236,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -226,6 +250,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/getElementById",
           "spec_url": "https://dom.spec.whatwg.org/#dom-nonelementparentnode-getelementbyid",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "36"
@@ -249,7 +276,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,6 +290,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/lastElementChild",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-lastelementchild①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -285,7 +316,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -298,6 +330,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/prepend",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-prepend①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -321,7 +356,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -334,6 +370,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/querySelector",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-queryselector①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -353,7 +392,7 @@
               {
                 "version_added": "8",
                 "partial_implementation": true,
-                "notes": "<code>querySelectorAll()</code> is supported, but only for CSS 2.1 selectors."
+                "notes": "`querySelectorAll()` is supported, but only for CSS 2.1 selectors."
               }
             ],
             "oculus": "mirror",
@@ -372,7 +411,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -385,6 +425,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/querySelectorAll",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-queryselectorall①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -404,7 +447,7 @@
               {
                 "version_added": "8",
                 "partial_implementation": true,
-                "notes": "<code>querySelectorAll()</code> is supported, but only for CSS 2.1 selectors."
+                "notes": "`querySelectorAll()` is supported, but only for CSS 2.1 selectors."
               }
             ],
             "oculus": "mirror",
@@ -423,7 +466,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -436,6 +480,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentFragment/replaceChildren",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-replacechildren①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -457,7 +504,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DocumentPictureInPicture.json b/api/DocumentPictureInPicture.json
index 0d398f1cb52185..d0df2b1d315637 100644
--- a/api/DocumentPictureInPicture.json
+++ b/api/DocumentPictureInPicture.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "enter_event": {
         "__compat": {
-          "description": "<code>enter</code> event",
+          "description": "`enter` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentPictureInPicture/enter_event",
           "spec_url": "https://wicg.github.io/document-picture-in-picture/#dom-documentpictureinpicture-onenter",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,13 +110,94 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "option_disallowReturnToOpener": {
+          "__compat": {
+            "description": "`disallowReturnToOpener` option",
+            "spec_url": "https://wicg.github.io/document-picture-in-picture/#dom-documentpictureinpictureoptions-disallowreturntoopener",
+            "tags": [
+              "web-features:document-picture-in-picture"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "124"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "option_preferInitialWindowPlacement": {
+          "__compat": {
+            "description": "`preferInitialWindowPlacement` option",
+            "spec_url": "https://wicg.github.io/document-picture-in-picture/#dom-documentpictureinpictureoptions-preferinitialwindowplacement",
+            "tags": [
+              "web-features:document-picture-in-picture"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "130"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "window": {
@@ -147,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/DocumentPictureInPictureEvent.json b/api/DocumentPictureInPictureEvent.json
index 1747a129fa633e..b82e7a84d9b59b 100644
--- a/api/DocumentPictureInPictureEvent.json
+++ b/api/DocumentPictureInPictureEvent.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "DocumentPictureInPictureEvent": {
         "__compat": {
-          "description": "<code>DocumentPictureInPictureEvent()</code> constructor",
+          "description": "`DocumentPictureInPictureEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentPictureInPictureEvent/DocumentPictureInPictureEvent",
           "spec_url": "https://wicg.github.io/document-picture-in-picture/#dom-documentpictureinpictureevent-documentpictureinpictureevent",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/DocumentTimeline.json b/api/DocumentTimeline.json
index b23514efb394f3..ec5df3780f5dd1 100644
--- a/api/DocumentTimeline.json
+++ b/api/DocumentTimeline.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "DocumentTimeline": {
         "__compat": {
-          "description": "<code>DocumentTimeline()</code> constructor",
+          "description": "`DocumentTimeline()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentTimeline/DocumentTimeline",
           "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-documenttimeline-documenttimeline",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DocumentType.json b/api/DocumentType.json
index 22a7e6af537de9..0153026fde8453 100644
--- a/api/DocumentType.json
+++ b/api/DocumentType.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentType",
         "spec_url": "https://dom.spec.whatwg.org/#interface-documenttype",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentType/after",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-after①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -72,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,6 +93,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentType/before",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-before①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentType/name",
           "spec_url": "https://dom.spec.whatwg.org/#dom-documenttype-name",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -152,7 +167,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -165,6 +181,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentType/publicId",
           "spec_url": "https://dom.spec.whatwg.org/#dom-documenttype-publicid",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -194,7 +213,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,6 +227,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentType/remove",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-remove①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -230,7 +253,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -243,6 +267,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentType/replaceWith",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-replacewith①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -268,7 +295,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -281,6 +309,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DocumentType/systemId",
           "spec_url": "https://dom.spec.whatwg.org/#dom-documenttype-systemid",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -310,7 +341,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DragEvent.json b/api/DragEvent.json
index 2374e4fbc62817..96cc64da512214 100644
--- a/api/DragEvent.json
+++ b/api/DragEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/DragEvent",
         "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#the-dragevent-interface",
+        "tags": [
+          "web-features:draganddrop"
+        ],
         "support": {
           "chrome": {
             "version_added": "46"
@@ -18,7 +21,7 @@
           "firefox_android": "mirror",
           "ie": {
             "version_added": "9",
-            "notes": "Before Internet Explorer 10, <code>DragEvent</code> is exposed in standards mode but not quirks mode."
+            "notes": "Before Internet Explorer 10, `DragEvent` is exposed in standards mode but not quirks mode."
           },
           "oculus": "mirror",
           "opera": {
@@ -30,7 +33,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,9 +44,12 @@
       },
       "DragEvent": {
         "__compat": {
-          "description": "<code>DragEvent()</code> constructor",
+          "description": "`DragEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DragEvent/DragEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#the-dragevent-interface",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -68,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DragEvent/dataTransfer",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-dragevent-datatransfer-dev",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -96,7 +107,7 @@
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The value is always <code>null</code>."
+              "notes": "The value is always `null`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -106,7 +117,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/DynamicsCompressorNode.json b/api/DynamicsCompressorNode.json
index babf51da9e5949..523f88e56f096c 100644
--- a/api/DynamicsCompressorNode.json
+++ b/api/DynamicsCompressorNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "DynamicsCompressorNode": {
         "__compat": {
-          "description": "<code>DynamicsCompressorNode()</code> constructor",
+          "description": "`DynamicsCompressorNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/DynamicsCompressorNode/DynamicsCompressorNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-dynamicscompressornode-constructor-dynamicscompressornode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,7 +154,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -192,7 +196,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -211,7 +216,7 @@
           "support": {
             "chrome": {
               "version_added": "19",
-              "notes": "Before version 52, this was an <code>AudioParam.</code>."
+              "notes": "Before version 52, this was an `AudioParam.`."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -237,12 +242,13 @@
             "safari_ios": "mirror",
             "samsunginternet_android": {
               "version_added": "1.0",
-              "notes": "Before Samsung Internet 6.0, this was an <code>AudioParam.</code>."
+              "notes": "Before Samsung Internet 6.0, this was an `AudioParam.`."
             },
             "webview_android": {
               "version_added": "≤37",
-              "notes": "Before version 52, this was an <code>AudioParam.</code>."
-            }
+              "notes": "Before version 52, this was an `AudioParam.`."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -283,7 +289,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -324,7 +331,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/EXT_blend_minmax.json b/api/EXT_blend_minmax.json
index a2bcbf6a30ad1b..0b35bbfb1eb7b6 100644
--- a/api/EXT_blend_minmax.json
+++ b/api/EXT_blend_minmax.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_blend_minmax",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_blend_minmax/",
+        "tags": [
+          "web-features:ext-blend-minmax"
+        ],
         "support": {
           "chrome": {
             "version_added": "38"
@@ -37,7 +40,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_color_buffer_float.json b/api/EXT_color_buffer_float.json
index 8906f945ab7d2e..7a1801f25c9203 100644
--- a/api/EXT_color_buffer_float.json
+++ b/api/EXT_color_buffer_float.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_color_buffer_float",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_color_buffer_float/",
+        "tags": [
+          "web-features:ext-color-buffer-float"
+        ],
         "support": {
           "chrome": {
             "version_added": "56"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_color_buffer_half_float.json b/api/EXT_color_buffer_half_float.json
index 03ada2d5e44bcb..ef8bf30db81533 100644
--- a/api/EXT_color_buffer_half_float.json
+++ b/api/EXT_color_buffer_half_float.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_color_buffer_half_float",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_color_buffer_half_float/",
+        "tags": [
+          "web-features:ext-color-buffer-half-float"
+        ],
         "support": {
           "chrome": {
             "version_added": "63"
@@ -37,7 +40,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_disjoint_timer_query.json b/api/EXT_disjoint_timer_query.json
index 956a70cff1e06f..3a0a6c77cb503c 100644
--- a/api/EXT_disjoint_timer_query.json
+++ b/api/EXT_disjoint_timer_query.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+        "tags": [
+          "web-features:ext-disjoint-timer-query"
+        ],
         "support": {
           "chrome": [
             {
@@ -14,19 +17,19 @@
             {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             }
           ],
           "chrome_android": {
             "version_added": "47",
             "version_removed": "65",
-            "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+            "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
           },
           "edge": "mirror",
           "firefox": {
             "version_added": "51",
             "version_removed": "59",
-            "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+            "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
           },
           "firefox_android": {
             "version_added": false
@@ -42,7 +45,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,6 +58,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/beginQueryEXT",
           "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+          "tags": [
+            "web-features:ext-disjoint-timer-query"
+          ],
           "support": {
             "chrome": [
               {
@@ -64,19 +71,19 @@
               {
                 "version_added": "47",
                 "version_removed": "65",
-                "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+                "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
               }
             ],
             "chrome_android": {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "edge": "mirror",
             "firefox": {
               "version_added": "51",
               "version_removed": "59",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "firefox_android": {
               "version_added": false
@@ -92,7 +99,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,6 +113,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/createQueryEXT",
           "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+          "tags": [
+            "web-features:ext-disjoint-timer-query"
+          ],
           "support": {
             "chrome": [
               {
@@ -115,19 +126,19 @@
               {
                 "version_added": "47",
                 "version_removed": "65",
-                "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+                "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
               }
             ],
             "chrome_android": {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "edge": "mirror",
             "firefox": {
               "version_added": "51",
               "version_removed": "59",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "firefox_android": {
               "version_added": false
@@ -143,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,6 +168,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/deleteQueryEXT",
           "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+          "tags": [
+            "web-features:ext-disjoint-timer-query"
+          ],
           "support": {
             "chrome": [
               {
@@ -166,19 +181,19 @@
               {
                 "version_added": "47",
                 "version_removed": "65",
-                "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+                "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
               }
             ],
             "chrome_android": {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "edge": "mirror",
             "firefox": {
               "version_added": "51",
               "version_removed": "59",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "firefox_android": {
               "version_added": false
@@ -194,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,6 +223,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/endQueryEXT",
           "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+          "tags": [
+            "web-features:ext-disjoint-timer-query"
+          ],
           "support": {
             "chrome": [
               {
@@ -217,19 +236,19 @@
               {
                 "version_added": "47",
                 "version_removed": "65",
-                "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+                "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
               }
             ],
             "chrome_android": {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "edge": "mirror",
             "firefox": {
               "version_added": "51",
               "version_removed": "59",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "firefox_android": {
               "version_added": false
@@ -245,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -258,6 +278,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/getQueryEXT",
           "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+          "tags": [
+            "web-features:ext-disjoint-timer-query"
+          ],
           "support": {
             "chrome": [
               {
@@ -268,19 +291,19 @@
               {
                 "version_added": "47",
                 "version_removed": "65",
-                "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+                "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
               }
             ],
             "chrome_android": {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "edge": "mirror",
             "firefox": {
               "version_added": "51",
               "version_removed": "59",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "firefox_android": {
               "version_added": false
@@ -296,7 +319,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -309,6 +333,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/getQueryObjectEXT",
           "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+          "tags": [
+            "web-features:ext-disjoint-timer-query"
+          ],
           "support": {
             "chrome": [
               {
@@ -319,19 +346,19 @@
               {
                 "version_added": "47",
                 "version_removed": "65",
-                "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+                "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
               }
             ],
             "chrome_android": {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "edge": "mirror",
             "firefox": {
               "version_added": "51",
               "version_removed": "59",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "firefox_android": {
               "version_added": false
@@ -347,7 +374,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,6 +388,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/isQueryEXT",
           "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+          "tags": [
+            "web-features:ext-disjoint-timer-query"
+          ],
           "support": {
             "chrome": [
               {
@@ -370,19 +401,19 @@
               {
                 "version_added": "47",
                 "version_removed": "65",
-                "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+                "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
               }
             ],
             "chrome_android": {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "edge": "mirror",
             "firefox": {
               "version_added": "51",
               "version_removed": "59",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "firefox_android": {
               "version_added": false
@@ -398,7 +429,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -411,6 +443,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/queryCounterEXT",
           "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+          "tags": [
+            "web-features:ext-disjoint-timer-query"
+          ],
           "support": {
             "chrome": [
               {
@@ -421,19 +456,19 @@
               {
                 "version_added": "47",
                 "version_removed": "65",
-                "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+                "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
               }
             ],
             "chrome_android": {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "edge": "mirror",
             "firefox": {
               "version_added": "51",
               "version_removed": "59",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             },
             "firefox_android": {
               "version_added": false
@@ -449,7 +484,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/EXT_disjoint_timer_query_webgl2.json b/api/EXT_disjoint_timer_query_webgl2.json
index 1a134ad3219d1c..6e549853d6bd16 100644
--- a/api/EXT_disjoint_timer_query_webgl2.json
+++ b/api/EXT_disjoint_timer_query_webgl2.json
@@ -35,7 +35,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -78,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/EXT_float_blend.json b/api/EXT_float_blend.json
index 9e106e840f9eac..7d3a91028a14c7 100644
--- a/api/EXT_float_blend.json
+++ b/api/EXT_float_blend.json
@@ -4,13 +4,16 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_float_blend",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_float_blend/",
+        "tags": [
+          "web-features:ext-float-blend"
+        ],
         "support": {
           "chrome": {
             "version_added": "75"
           },
           "chrome_android": {
             "version_added": "75",
-            "notes": "Until Chrome 77, this extension was unavailable on several Android devices powered by GLES 3.2. See <a href='https://crbug.com/964208'>bug 964208</a>."
+            "notes": "Until Chrome 77, this extension was unavailable on several Android devices powered by GLES 3.2. See [bug 41459397](https://crbug.com/41459397)."
           },
           "edge": "mirror",
           "firefox": {
@@ -39,7 +42,8 @@
           },
           "webview_android": {
             "version_added": "75"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_frag_depth.json b/api/EXT_frag_depth.json
index d8ecebf20b32a9..e6375a3192a7fd 100644
--- a/api/EXT_frag_depth.json
+++ b/api/EXT_frag_depth.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_frag_depth",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_frag_depth/",
+        "tags": [
+          "web-features:ext-frag-depth"
+        ],
         "support": {
           "chrome": {
             "version_added": "38"
@@ -32,7 +35,8 @@
             "version_added": "15"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_sRGB.json b/api/EXT_sRGB.json
index a0b1b17dc822bf..7dcda9621d23ea 100644
--- a/api/EXT_sRGB.json
+++ b/api/EXT_sRGB.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_sRGB",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_sRGB/",
+        "tags": [
+          "web-features:ext-srgb"
+        ],
         "support": {
           "chrome": {
             "version_added": "40"
@@ -37,7 +40,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_shader_texture_lod.json b/api/EXT_shader_texture_lod.json
index cb516acf37b09d..479d54264861c5 100644
--- a/api/EXT_shader_texture_lod.json
+++ b/api/EXT_shader_texture_lod.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_shader_texture_lod",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_shader_texture_lod/",
+        "tags": [
+          "web-features:ext-shader-texture-lod"
+        ],
         "support": {
           "chrome": {
             "version_added": "38"
@@ -30,7 +33,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_texture_compression_bptc.json b/api/EXT_texture_compression_bptc.json
index b52c8ae86ce4cf..f4000e8800d730 100644
--- a/api/EXT_texture_compression_bptc.json
+++ b/api/EXT_texture_compression_bptc.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_texture_compression_bptc",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_texture_compression_bptc/",
+        "tags": [
+          "web-features:ext-texture-compression-bptc"
+        ],
         "support": {
           "chrome": [
             {
@@ -41,7 +44,8 @@
           "samsunginternet_android": {
             "version_added": false
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_texture_compression_rgtc.json b/api/EXT_texture_compression_rgtc.json
index 3295975673fff6..abf0e0a1a6d1b8 100644
--- a/api/EXT_texture_compression_rgtc.json
+++ b/api/EXT_texture_compression_rgtc.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_texture_compression_rgtc",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_texture_compression_rgtc/",
+        "tags": [
+          "web-features:ext-texture-compression-rgtc"
+        ],
         "support": {
           "chrome": [
             {
@@ -43,7 +46,8 @@
           "samsunginternet_android": {
             "version_added": false
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_texture_filter_anisotropic.json b/api/EXT_texture_filter_anisotropic.json
index 42b52ef1c0555a..1f713e3079eb6d 100644
--- a/api/EXT_texture_filter_anisotropic.json
+++ b/api/EXT_texture_filter_anisotropic.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_texture_filter_anisotropic",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_texture_filter_anisotropic/",
+        "tags": [
+          "web-features:ext-texture-filter-anisotropic"
+        ],
         "support": {
           "chrome": [
             {
@@ -47,7 +50,8 @@
               "version_added": "4.0"
             }
           ],
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EXT_texture_norm16.json b/api/EXT_texture_norm16.json
index 50ca6ed0be1fed..fb789cd8cde2a7 100644
--- a/api/EXT_texture_norm16.json
+++ b/api/EXT_texture_norm16.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EXT_texture_norm16",
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_texture_norm16/",
+        "tags": [
+          "web-features:ext-texture-norm16"
+        ],
         "support": {
           "chrome": {
             "version_added": "87"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/EditContext.json b/api/EditContext.json
index bb4f8fa298922c..60cd3c15840cb8 100644
--- a/api/EditContext.json
+++ b/api/EditContext.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1904161"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/269922"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,7 +41,7 @@
       },
       "EditContext": {
         "__compat": {
-          "description": "<code>EditContext()</code> constructor",
+          "description": "`EditContext()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EditContext/EditContext",
           "spec_url": "https://w3c.github.io/edit-context/#dom-editcontext-constructor",
           "tags": [
@@ -65,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -102,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -176,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -187,7 +194,7 @@
       },
       "characterboundsupdate_event": {
         "__compat": {
-          "description": "<code>characterboundsupdate</code> event",
+          "description": "`characterboundsupdate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EditContext/characterboundsupdate_event",
           "spec_url": "https://w3c.github.io/edit-context/#dom-editcontext-oncharacterboundsupdate",
           "tags": [
@@ -214,7 +221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -225,7 +233,7 @@
       },
       "compositionend_event": {
         "__compat": {
-          "description": "<code>compositionend</code> event",
+          "description": "`compositionend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EditContext/compositionend_event",
           "spec_url": "https://w3c.github.io/edit-context/#dom-editcontext-oncompositionend",
           "tags": [
@@ -252,7 +260,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -263,7 +272,7 @@
       },
       "compositionstart_event": {
         "__compat": {
-          "description": "<code>compositionstart</code> event",
+          "description": "`compositionstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EditContext/compositionstart_event",
           "spec_url": "https://w3c.github.io/edit-context/#dom-editcontext-oncompositionstart",
           "tags": [
@@ -290,7 +299,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -327,7 +337,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -364,7 +375,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -401,7 +413,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -412,7 +425,7 @@
       },
       "textformatupdate_event": {
         "__compat": {
-          "description": "<code>textformatupdate</code> event",
+          "description": "`textformatupdate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EditContext/textformatupdate_event",
           "spec_url": "https://w3c.github.io/edit-context/#dom-editcontext-ontextformatupdate",
           "tags": [
@@ -439,7 +452,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -450,7 +464,7 @@
       },
       "textupdate_event": {
         "__compat": {
-          "description": "<code>textupdate</code> event",
+          "description": "`textupdate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EditContext/textupdate_event",
           "spec_url": "https://w3c.github.io/edit-context/#dom-editcontext-ontextupdate",
           "tags": [
@@ -477,7 +491,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -514,7 +529,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -551,7 +567,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -588,7 +605,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -625,7 +643,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -662,7 +681,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Element.json b/api/Element.json
index d1f21cea24cd98..e898e1cf76ee4c 100644
--- a/api/Element.json
+++ b/api/Element.json
@@ -10,6 +10,9 @@
           "https://w3c.github.io/DOM-Parsing/#extensions-to-the-element-interface",
           "https://drafts.csswg.org/cssom-view/#extension-to-the-element-interface"
         ],
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -39,7 +42,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,7 +53,7 @@
       },
       "DOMActivate_event": {
         "__compat": {
-          "description": "<code>DOMActivate</code> event",
+          "description": "`DOMActivate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/DOMActivate_event",
           "spec_url": "https://w3c.github.io/uievents/#event-type-DOMActivate",
           "support": {
@@ -73,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,7 +89,7 @@
       },
       "DOMMouseScroll_event": {
         "__compat": {
-          "description": "<code>DOMMouseScroll</code> event",
+          "description": "`DOMMouseScroll` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/DOMMouseScroll_event",
           "support": {
             "chrome": {
@@ -107,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,7 +124,7 @@
       },
       "MozMousePixelScroll_event": {
         "__compat": {
-          "description": "<code>MozMousePixelScroll</code> event",
+          "description": "`MozMousePixelScroll` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/MozMousePixelScroll_event",
           "support": {
             "chrome": {
@@ -141,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,6 +161,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/after",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-after①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -179,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,7 +201,7 @@
       },
       "afterscriptexecute_event": {
         "__compat": {
-          "description": "<code>afterscriptexecute</code> event",
+          "description": "`afterscriptexecute` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/afterscriptexecute_event",
           "support": {
             "chrome": {
@@ -213,7 +224,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -250,7 +262,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,6 +275,9 @@
           "__compat": {
             "description": "Implicit to/from keyframes are supported",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/animate#Implicit_tofrom_keyframes",
+            "tags": [
+              "web-features:web-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "84"
@@ -285,7 +301,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -296,8 +313,11 @@
         },
         "options_composite_parameter": {
           "__compat": {
-            "description": "<code>options.composite</code> parameter",
+            "description": "`options.composite` parameter",
             "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-keyframeeffectoptions-composite",
+            "tags": [
+              "web-features:web-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "84"
@@ -319,7 +339,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -330,8 +351,11 @@
         },
         "options_id_parameter": {
           "__compat": {
-            "description": "<code>options.id</code> parameter",
+            "description": "`options.id` parameter",
             "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-keyframeanimationoptions-id",
+            "tags": [
+              "web-features:web-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -353,7 +377,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -364,8 +389,11 @@
         },
         "options_iterationComposite_parameter": {
           "__compat": {
-            "description": "<code>options.iterationComposite</code> parameter",
+            "description": "`options.iterationComposite` parameter",
             "spec_url": "https://drafts.csswg.org/web-animations-2/#dom-keyframeeffectoptions-iterationcomposite",
+            "tags": [
+              "web-features:web-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -387,7 +415,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -398,8 +427,11 @@
         },
         "options_pseudoElement_parameter": {
           "__compat": {
-            "description": "<code>options.pseudoElement</code> parameter",
+            "description": "`options.pseudoElement` parameter",
             "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-keyframeeffectoptions-pseudoelement",
+            "tags": [
+              "web-features:web-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "84"
@@ -421,7 +453,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -432,8 +465,11 @@
         },
         "options_rangeEnd_parameter": {
           "__compat": {
-            "description": "<code>options.rangeEnd</code> parameter",
+            "description": "`options.rangeEnd` parameter",
             "spec_url": "https://drafts.csswg.org/web-animations-2/#dom-keyframeanimationoptions-rangeend",
+            "tags": [
+              "web-features:web-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "115"
@@ -455,7 +491,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -466,8 +503,11 @@
         },
         "options_rangeStart_parameter": {
           "__compat": {
-            "description": "<code>options.rangeStart</code> parameter",
+            "description": "`options.rangeStart` parameter",
             "spec_url": "https://drafts.csswg.org/web-animations-2/#dom-keyframeanimationoptions-rangestart",
+            "tags": [
+              "web-features:web-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "115"
@@ -489,7 +529,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -500,8 +541,11 @@
         },
         "options_timeline_parameter": {
           "__compat": {
-            "description": "<code>options.timeline</code> parameter",
+            "description": "`options.timeline` parameter",
             "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-keyframeanimationoptions-timeline",
+            "tags": [
+              "web-features:web-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "85"
@@ -523,7 +567,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -535,14 +580,17 @@
       },
       "animationcancel_event": {
         "__compat": {
-          "description": "<code>animationcancel</code> event",
+          "description": "`animationcancel` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/animationcancel_event",
           "spec_url": "https://drafts.csswg.org/css-animations/#eventdef-globaleventhandlers-animationcancel",
+          "tags": [
+            "web-features:web-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "83",
               "partial_implementation": true,
-              "notes": "The <code>onanimationcancel</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('animationcancel', function() {});</code>. See <a href='https://crbug.com/868224'>bug 868224</a>."
+              "notes": "The `onanimationcancel` event handler property is not supported. To listen to this event, use `element.addEventListener('animationcancel', function() {});`. See [bug 41404325](https://crbug.com/41404325)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -564,12 +612,13 @@
                 "version_added": "12",
                 "version_removed": "13.1",
                 "partial_implementation": true,
-                "notes": "Although the <code>onanimationcancel</code> event handler property is supported, the <code>animationcancel</code> event is never fired."
+                "notes": "Although the `onanimationcancel` event handler property is supported, the `animationcancel` event is never fired."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -580,9 +629,12 @@
       },
       "animationend_event": {
         "__compat": {
-          "description": "<code>animationend</code> event",
+          "description": "`animationend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/animationend_event",
           "spec_url": "https://drafts.csswg.org/css-animations/#eventdef-globaleventhandlers-animationend",
+          "tags": [
+            "web-features:web-animations"
+          ],
           "support": {
             "chrome": [
               {
@@ -596,7 +648,7 @@
                 "version_added": "43",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "The <code>onanimationend</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationend', function() {});</code>."
+                "notes": "The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`."
               }
             ],
             "chrome_android": "mirror",
@@ -612,7 +664,7 @@
                 "version_added": "12",
                 "version_removed": "18",
                 "partial_implementation": true,
-                "notes": "The <code>onanimationend</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationend', function() {});</code>."
+                "notes": "The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`."
               }
             ],
             "firefox": [
@@ -623,14 +675,14 @@
                 "version_added": "5",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "The <code>onanimationend</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationend', function() {});</code>."
+                "notes": "The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>onanimationend</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationend', function() {});</code>."
+              "notes": "The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -640,7 +692,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -651,9 +704,12 @@
       },
       "animationiteration_event": {
         "__compat": {
-          "description": "<code>animationiteration</code> event",
+          "description": "`animationiteration` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/animationiteration_event",
           "spec_url": "https://drafts.csswg.org/css-animations/#eventdef-globaleventhandlers-animationiteration",
+          "tags": [
+            "web-features:web-animations"
+          ],
           "support": {
             "chrome": [
               {
@@ -667,7 +723,7 @@
                 "version_added": "43",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "The <code>onanimationiteration</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationiteration', function() {});</code>."
+                "notes": "The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`."
               }
             ],
             "chrome_android": "mirror",
@@ -683,7 +739,7 @@
                 "version_added": "12",
                 "version_removed": "18",
                 "partial_implementation": true,
-                "notes": "The <code>onanimationiteration</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationiteration', function() {});</code>."
+                "notes": "The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`."
               }
             ],
             "firefox": [
@@ -694,14 +750,14 @@
                 "version_added": "5",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "The <code>onanimationiteration</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationiteration', function() {});</code>."
+                "notes": "The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>onanimationiteration</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationiteration', function() {});</code>."
+              "notes": "The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -711,7 +767,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -722,9 +779,12 @@
       },
       "animationstart_event": {
         "__compat": {
-          "description": "<code>animationstart</code> event",
+          "description": "`animationstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/animationstart_event",
           "spec_url": "https://drafts.csswg.org/css-animations/#eventdef-globaleventhandlers-animationstart",
+          "tags": [
+            "web-features:web-animations"
+          ],
           "support": {
             "chrome": [
               {
@@ -738,7 +798,7 @@
                 "version_added": "43",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "The <code>onanimationstart</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationstart', function() {});</code>."
+                "notes": "The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`."
               }
             ],
             "chrome_android": "mirror",
@@ -754,7 +814,7 @@
                 "version_added": "12",
                 "version_removed": "18",
                 "partial_implementation": true,
-                "notes": "The <code>onanimationstart</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationstart', function() {});</code>."
+                "notes": "The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`."
               }
             ],
             "firefox": [
@@ -765,14 +825,14 @@
                 "version_added": "5",
                 "version_removed": "51",
                 "partial_implementation": true,
-                "notes": "The <code>onanimationstart</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationstart', function() {});</code>."
+                "notes": "The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>onanimationstart</code> event handler property is not supported. To listen to this event, use <code>document.addEventListener('animationstart', function() {});</code>."
+              "notes": "The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -782,7 +842,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -795,6 +856,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/append",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-append①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -818,7 +882,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -830,6 +895,9 @@
       "ariaActiveDescendantElement": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaactivedescendantelement",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -851,7 +919,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -888,7 +957,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -925,7 +995,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -938,6 +1009,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/ariaBrailleLabel",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariabraillelabel",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "107"
@@ -959,7 +1033,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -972,6 +1047,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/ariaBrailleRoleDescription",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariabrailleroledescription",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "107"
@@ -993,7 +1071,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1030,7 +1109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1067,7 +1147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1104,7 +1185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1141,7 +1223,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1154,6 +1237,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/ariaColIndexText",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariacolindextext",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "128"
@@ -1175,7 +1261,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1212,7 +1299,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1224,6 +1312,9 @@
       "ariaControlsElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariacontrolselements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -1245,7 +1336,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1282,7 +1374,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1294,6 +1387,9 @@
       "ariaDescribedByElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariadescribedbyelements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -1315,7 +1411,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1328,6 +1425,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/ariaDescription",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariadescription",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "83"
@@ -1349,7 +1449,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1361,6 +1462,9 @@
       "ariaDetailsElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariadetailselements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -1382,7 +1486,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1419,7 +1524,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1431,6 +1537,9 @@
       "ariaErrorMessageElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaerrormessageelements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -1452,7 +1561,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1489,7 +1599,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1501,6 +1612,9 @@
       "ariaFlowToElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaflowtoelements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -1522,7 +1636,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1559,7 +1674,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1596,7 +1712,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1632,7 +1749,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1669,7 +1787,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1706,7 +1825,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1718,6 +1838,9 @@
       "ariaLabelledByElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-arialabelledbyelements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -1739,7 +1862,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1776,7 +1900,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1813,7 +1938,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1850,7 +1976,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1887,7 +2014,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1924,7 +2052,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1961,7 +2090,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1973,6 +2103,9 @@
       "ariaOwnsElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaownselements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -1994,7 +2127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2031,7 +2165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2068,7 +2203,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2105,7 +2241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2142,7 +2279,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2178,7 +2316,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2215,7 +2354,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2252,7 +2392,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2289,7 +2430,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2326,7 +2468,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2339,6 +2482,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/ariaRowIndexText",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariarowindextext",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "128"
@@ -2360,7 +2506,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2397,7 +2544,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2434,7 +2582,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2471,7 +2620,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2508,7 +2658,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2545,7 +2696,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2582,7 +2734,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2619,7 +2772,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2656,7 +2810,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2693,7 +2848,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2730,7 +2886,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2740,7 +2897,7 @@
         },
         "options_clonable_parameter": {
           "__compat": {
-            "description": "<code>options.clonable</code> parameter",
+            "description": "`options.clonable` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/attachShadow#clonable",
             "spec_url": "https://dom.spec.whatwg.org/#dom-shadowrootinit-clonable",
             "support": {
@@ -2770,7 +2927,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2781,7 +2939,7 @@
         },
         "options_delegatesFocus_parameter": {
           "__compat": {
-            "description": "<code>options.delegatesFocus</code> parameter",
+            "description": "`options.delegatesFocus` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/attachShadow#delegatesfocus",
             "spec_url": "https://dom.spec.whatwg.org/#dom-shadowrootinit-delegatesfocus",
             "support": {
@@ -2805,7 +2963,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2816,7 +2975,7 @@
         },
         "options_serializable_parameter": {
           "__compat": {
-            "description": "<code>options.serializable</code> parameter",
+            "description": "`options.serializable` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/attachShadow#serializable",
             "spec_url": "https://dom.spec.whatwg.org/#dom-shadowrootinit-serializable",
             "support": {
@@ -2840,7 +2999,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2854,6 +3014,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/attributes",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-attributes",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2881,7 +3044,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2892,7 +3056,7 @@
       },
       "auxclick_event": {
         "__compat": {
-          "description": "<code>auxclick</code> event",
+          "description": "`auxclick` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/auxclick_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-auxclick",
@@ -2906,7 +3070,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "53",
-              "notes": "Starting in Firefox 68, the <code>auxclick</code> event is used to trigger the <em>new tab on middle-click</em> action; previously, this had been done with the <code>click</code> event. Apps can prevent middle-click from opening new tabs (or middle-click to paste, if that feature is enabled) by intercepting <code>auxclick</code> on links, and <code>auxclick</code> event handlers can now open popups without triggering the popup blocker."
+              "notes": "Starting in Firefox 68, the `auxclick` event is used to trigger the _new tab on middle-click_ action; previously, this had been done with the `click` event. Apps can prevent middle-click from opening new tabs (or middle-click to paste, if that feature is enabled) by intercepting `auxclick` on links, and `auxclick` event handlers can now open popups without triggering the popup blocker."
             },
             "firefox_android": {
               "version_added": "53"
@@ -2918,11 +3082,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2932,7 +3097,7 @@
         },
         "type_pointerevent": {
           "__compat": {
-            "description": "Is a <code>PointerEvent</code>",
+            "description": "Is a `PointerEvent`",
             "support": {
               "chrome": {
                 "version_added": "92"
@@ -2956,7 +3121,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2970,6 +3136,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/before",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-before①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -2995,7 +3164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3006,7 +3176,7 @@
       },
       "beforeinput_event": {
         "__compat": {
-          "description": "<code>beforeinput</code> event",
+          "description": "`beforeinput` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/beforeinput_event",
           "spec_url": "https://w3c.github.io/uievents/#event-type-beforeinput",
           "support": {
@@ -3030,7 +3200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3041,7 +3212,7 @@
       },
       "beforematch_event": {
         "__compat": {
-          "description": "<code>beforematch</code> event",
+          "description": "`beforematch` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/beforematch_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-beforematch",
           "support": {
@@ -3065,7 +3236,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3076,7 +3248,7 @@
       },
       "beforescriptexecute_event": {
         "__compat": {
-          "description": "<code>beforescriptexecute</code> event",
+          "description": "`beforescriptexecute` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/beforescriptexecute_event",
           "support": {
             "chrome": {
@@ -3099,7 +3271,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3110,9 +3283,12 @@
       },
       "beforexrselect_event": {
         "__compat": {
-          "description": "<code>beforexrselect</code> event",
+          "description": "`beforexrselect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/beforexrselect_event",
           "spec_url": "https://immersive-web.github.io/dom-overlays/#onbeforexrselect",
+          "tags": [
+            "web-features:webxr-dom-overlays"
+          ],
           "support": {
             "chrome": {
               "version_added": "83"
@@ -3134,7 +3310,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40652382"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3145,7 +3325,7 @@
       },
       "blur_event": {
         "__compat": {
-          "description": "<code>blur</code> event",
+          "description": "`blur` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/blur_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-blur",
@@ -3166,7 +3346,7 @@
               {
                 "version_added": "6",
                 "version_removed": "24",
-                "notes": "The interface for this event is <a href='https://developer.mozilla.org/docs/Web/API/Event'><code>Event</code></a>, not <a href='https://developer.mozilla.org/docs/Web/API/FocusEvent'><code>FocusEvent</code></a>."
+                "notes": "The interface for this event is [`Event`](https://developer.mozilla.org/docs/Web/API/Event), not [`FocusEvent`](https://developer.mozilla.org/docs/Web/API/FocusEvent)."
               }
             ],
             "firefox_android": "mirror",
@@ -3185,7 +3365,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3222,7 +3403,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3232,8 +3414,11 @@
         },
         "options_checkOpacity_parameter": {
           "__compat": {
-            "description": "<code>options.checkOpacity</code> parameter",
+            "description": "`options.checkOpacity` parameter",
             "spec_url": "https://drafts.csswg.org/cssom-view-1/#dictdef-checkvisibilityoptions",
+            "tags": [
+              "web-features:check-visibility"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -3255,7 +3440,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3266,8 +3452,11 @@
         },
         "options_checkVisibilityCSS_parameter": {
           "__compat": {
-            "description": "<code>options.checkVisibilityCSS</code> parameter",
+            "description": "`options.checkVisibilityCSS` parameter",
             "spec_url": "https://drafts.csswg.org/cssom-view-1/#dictdef-checkvisibilityoptions",
+            "tags": [
+              "web-features:check-visibility"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -3289,7 +3478,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3300,8 +3490,11 @@
         },
         "options_contentVisibilityAuto_parameter": {
           "__compat": {
-            "description": "<code>options.contentVisibilityAuto</code> parameter",
+            "description": "`options.contentVisibilityAuto` parameter",
             "spec_url": "https://drafts.csswg.org/cssom-view-1/#dictdef-checkvisibilityoptions",
+            "tags": [
+              "web-features:check-visibility"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -3323,7 +3516,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3334,8 +3528,11 @@
         },
         "options_opacityProperty_parameter": {
           "__compat": {
-            "description": "<code>options.opacityProperty</code> parameter",
+            "description": "`options.opacityProperty` parameter",
             "spec_url": "https://drafts.csswg.org/cssom-view-1/#dictdef-checkvisibilityoptions",
+            "tags": [
+              "web-features:check-visibility"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -3357,7 +3554,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3368,8 +3566,11 @@
         },
         "options_visibilityProperty_parameter": {
           "__compat": {
-            "description": "<code>options.visibilityProperty</code> parameter",
+            "description": "`options.visibilityProperty` parameter",
             "spec_url": "https://drafts.csswg.org/cssom-view-1/#dictdef-checkvisibilityoptions",
+            "tags": [
+              "web-features:check-visibility"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -3391,7 +3592,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3405,6 +3607,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/childElementCount",
           "spec_url": "https://dom.spec.whatwg.org/#dom-parentnode-childelementcount",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -3436,7 +3641,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3449,6 +3655,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/children",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-children①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -3468,7 +3677,7 @@
               {
                 "version_added": "6",
                 "version_removed": "9",
-                "notes": "Also includes non-standard <code>HTMLCommentElement</code> nodes."
+                "notes": "Also includes non-standard `HTMLCommentElement` nodes."
               }
             ],
             "oculus": "mirror",
@@ -3485,7 +3694,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3498,6 +3708,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/classList",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-classlist①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -3561,7 +3774,8 @@
                 "partial_implementation": true,
                 "notes": "Not supported for SVG elements."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3574,6 +3788,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/className",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-classname①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -3583,7 +3800,7 @@
                 "version_added": "1",
                 "version_removed": "22",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+                "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
               }
             ],
             "chrome_android": "mirror",
@@ -3609,7 +3826,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3620,7 +3838,7 @@
       },
       "click_event": {
         "__compat": {
-          "description": "<code>click</code> event",
+          "description": "`click` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/click_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-click",
@@ -3639,7 +3857,7 @@
             },
             "firefox": {
               "version_added": "6",
-              "notes": "Beginning in Firefox 68, Firefox no longer incorrectly sends a <code>click</code> event for buttons other than the primary mouse button; previously, there were circumstances in which this would occur. One example: middle-clicking a link would send a <code>click</code> to the document's <code>&lt;html&gt;</code> element."
+              "notes": "Beginning in Firefox 68, Firefox no longer incorrectly sends a `click` event for buttons other than the primary mouse button; previously, there were circumstances in which this would occur. One example: middle-clicking a link would send a `click` to the document's `&lt;html&gt;` element."
             },
             "firefox_android": {
               "version_added": "6"
@@ -3661,7 +3879,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3671,7 +3890,7 @@
         },
         "type_pointerevent": {
           "__compat": {
-            "description": "Is a <code>PointerEvent</code>",
+            "description": "Is a `PointerEvent`",
             "support": {
               "chrome": {
                 "version_added": "92"
@@ -3695,7 +3914,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3738,7 +3958,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3780,7 +4001,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3822,7 +4044,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3864,7 +4087,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3877,6 +4101,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/closest",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-closest①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -3902,7 +4129,8 @@
               "version_added": "9"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3913,7 +4141,7 @@
       },
       "compositionend_event": {
         "__compat": {
-          "description": "<code>compositionend</code> event",
+          "description": "`compositionend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/compositionend_event",
           "spec_url": "https://w3c.github.io/uievents/#event-type-compositionend",
           "support": {
@@ -3947,7 +4175,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3958,7 +4187,7 @@
       },
       "compositionstart_event": {
         "__compat": {
-          "description": "<code>compositionstart</code> event",
+          "description": "`compositionstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/compositionstart_event",
           "spec_url": "https://w3c.github.io/uievents/#event-type-compositionstart",
           "support": {
@@ -3992,7 +4221,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4003,7 +4233,7 @@
       },
       "compositionupdate_event": {
         "__compat": {
-          "description": "<code>compositionupdate</code> event",
+          "description": "`compositionupdate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/compositionupdate_event",
           "spec_url": "https://w3c.github.io/uievents/#event-type-compositionupdate",
           "support": {
@@ -4033,7 +4263,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4046,6 +4277,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/computedStyleMap",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-element-computedstylemap",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -4068,7 +4302,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4079,7 +4314,7 @@
       },
       "contentvisibilityautostatechange_event": {
         "__compat": {
-          "description": "<code>contentvisibilityautostatechange</code> event",
+          "description": "`contentvisibilityautostatechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/contentvisibilityautostatechange_event",
           "spec_url": "https://drafts.csswg.org/css-contain/#content-visibility-auto-state-change",
           "support": {
@@ -4088,9 +4323,17 @@
             },
             "chrome_android": "mirror",
             "edge": "mirror",
-            "firefox": {
-              "version_added": "124"
-            },
+            "firefox": [
+              {
+                "version_added": "130"
+              },
+              {
+                "version_added": "124",
+                "version_removed": "130",
+                "partial_implementation": true,
+                "notes": "The `oncontentvisibilityautostatechange` event handler property is not supported."
+              }
+            ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
@@ -4099,11 +4342,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4114,7 +4358,7 @@
       },
       "contextmenu_event": {
         "__compat": {
-          "description": "<code>contextmenu</code> event",
+          "description": "`contextmenu` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/contextmenu_event",
           "spec_url": "https://w3c.github.io/uievents/#event-type-contextmenu",
           "support": {
@@ -4147,7 +4391,8 @@
               "impl_url": "https://webkit.org/b/213953"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4157,7 +4402,7 @@
         },
         "type_pointerevent": {
           "__compat": {
-            "description": "Is a <code>PointerEvent</code>",
+            "description": "Is a `PointerEvent`",
             "support": {
               "chrome": {
                 "version_added": "92"
@@ -4181,7 +4426,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4193,12 +4439,15 @@
       },
       "copy_event": {
         "__compat": {
-          "description": "<code>copy</code> event",
+          "description": "`copy` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/copy_event",
           "spec_url": [
             "https://w3c.github.io/clipboard-apis/#clipboard-event-copy",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-oncopy"
           ],
+          "tags": [
+            "web-features:clipboard-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4213,7 +4462,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "Before Internet Explorer 9, this event is not supported via <code>addEventListener</code>; however, the event handler is supported since IE 5.5. The event can be listened to via <code>element.oncopy</code>."
+              "notes": "Before Internet Explorer 9, this event is not supported via `addEventListener`; however, the event handler is supported since IE 5.5. The event can be listened to via `element.oncopy`."
             },
             "oculus": "mirror",
             "opera": {
@@ -4229,7 +4478,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4263,7 +4513,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4274,12 +4525,15 @@
       },
       "cut_event": {
         "__compat": {
-          "description": "<code>cut</code> event",
+          "description": "`cut` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/cut_event",
           "spec_url": [
             "https://w3c.github.io/clipboard-apis/#clipboard-event-cut",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-oncut"
           ],
+          "tags": [
+            "web-features:clipboard-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4294,7 +4548,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "Before Internet Explorer 9, this event is not supported via <code>addEventListener</code>; however, the event handler is supported since IE 5.5. The event can be listened to via <code>element.oncopy</code>."
+              "notes": "Before Internet Explorer 9, this event is not supported via `addEventListener`; however, the event handler is supported since IE 5.5. The event can be listened to via `element.oncopy`."
             },
             "oculus": "mirror",
             "opera": {
@@ -4310,7 +4564,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4321,7 +4576,7 @@
       },
       "dblclick_event": {
         "__compat": {
-          "description": "<code>dblclick</code> event",
+          "description": "`dblclick` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/dblclick_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-dblclick",
@@ -4340,7 +4595,7 @@
             },
             "firefox": {
               "version_added": "6",
-              "notes": "Starting in Firefox 68, <code>dblclick</code> events are only sent for the primary mouse button, per the specification."
+              "notes": "Starting in Firefox 68, `dblclick` events are only sent for the primary mouse button, per the specification."
             },
             "firefox_android": {
               "version_added": "6"
@@ -4362,7 +4617,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4375,6 +4631,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/elementTiming",
           "spec_url": "https://wicg.github.io/element-timing/#dom-element-elementtiming",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -4396,7 +4655,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4409,6 +4669,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/firstElementChild",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-firstelementchild①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -4440,7 +4703,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4451,7 +4715,7 @@
       },
       "focus_event": {
         "__compat": {
-          "description": "<code>focus</code> event",
+          "description": "`focus` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/focus_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-focus",
@@ -4473,7 +4737,7 @@
                 "version_added": "6",
                 "version_removed": "24",
                 "partial_implementation": true,
-                "notes": "The interface for this event is <a href='https://developer.mozilla.org/docs/Web/API/Event'><code>Event</code></a>, not <a href='https://developer.mozilla.org/docs/Web/API/FocusEvent'><code>FocusEvent</code></a>."
+                "notes": "The interface for this event is [`Event`](https://developer.mozilla.org/docs/Web/API/Event), not [`FocusEvent`](https://developer.mozilla.org/docs/Web/API/FocusEvent)."
               }
             ],
             "firefox_android": "mirror",
@@ -4492,7 +4756,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4503,25 +4768,25 @@
       },
       "focusin_event": {
         "__compat": {
-          "description": "<code>focusin</code> event",
+          "description": "`focusin` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/focusin_event",
           "spec_url": "https://w3c.github.io/uievents/#event-type-focusin",
           "support": {
             "chrome": {
               "version_added": "1",
               "partial_implementation": true,
-              "notes": "The <code>onfocusin</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('focusin', function() {});</code>."
+              "notes": "The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
               "partial_implementation": true,
-              "notes": "The <code>onfocusin</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('focusin', function() {});</code>."
+              "notes": "The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`."
             },
             "firefox": {
               "version_added": "52",
               "partial_implementation": true,
-              "notes": "The <code>onfocusin</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('focusin', function() {});</code>."
+              "notes": "The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -4541,7 +4806,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4552,25 +4818,25 @@
       },
       "focusout_event": {
         "__compat": {
-          "description": "<code>focusout</code> event",
+          "description": "`focusout` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/focusout_event",
           "spec_url": "https://w3c.github.io/uievents/#event-type-focusout",
           "support": {
             "chrome": {
               "version_added": "1",
               "partial_implementation": true,
-              "notes": "The <code>onfocusout</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('focusout', function() {});</code>."
+              "notes": "The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
               "partial_implementation": true,
-              "notes": "The <code>onfocusout</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('focusout', function() {});</code>."
+              "notes": "The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`."
             },
             "firefox": {
               "version_added": "52",
               "partial_implementation": true,
-              "notes": "The <code>onfocusout</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('focusout', function() {});</code>."
+              "notes": "The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -4590,7 +4856,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4601,7 +4868,7 @@
       },
       "fullscreenchange_event": {
         "__compat": {
-          "description": "<code>fullscreenchange</code> event",
+          "description": "`fullscreenchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/fullscreenchange_event",
           "spec_url": "https://fullscreen.spec.whatwg.org/#handler-document-onfullscreenchange",
           "tags": [
@@ -4705,7 +4972,10 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -4716,7 +4986,7 @@
       },
       "fullscreenerror_event": {
         "__compat": {
-          "description": "<code>fullscreenerror</code> event",
+          "description": "`fullscreenerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/fullscreenerror_event",
           "spec_url": "https://fullscreen.spec.whatwg.org/#handler-document-onfullscreenerror",
           "tags": [
@@ -4820,7 +5090,10 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -4831,7 +5104,7 @@
       },
       "gesturechange_event": {
         "__compat": {
-          "description": "<code>gesturechange</code> event",
+          "description": "`gesturechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/gesturechange_event",
           "support": {
             "chrome": {
@@ -4856,7 +5129,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4867,7 +5141,7 @@
       },
       "gestureend_event": {
         "__compat": {
-          "description": "<code>gestureend</code> event",
+          "description": "`gestureend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/gestureend_event",
           "support": {
             "chrome": {
@@ -4892,7 +5166,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4903,7 +5178,7 @@
       },
       "gesturestart_event": {
         "__compat": {
-          "description": "<code>gesturestart</code> event",
+          "description": "`gesturestart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/gesturestart_event",
           "support": {
             "chrome": {
@@ -4928,7 +5203,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4941,6 +5217,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/getAnimations",
           "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-animatable-getanimations",
+          "tags": [
+            "web-features:web-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -4962,7 +5241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4975,6 +5255,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/getAttribute",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-getattribute①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5002,7 +5285,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5015,6 +5299,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/getAttributeNames",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-getattributenames①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -5038,7 +5325,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5051,6 +5339,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/getAttributeNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-getattributenode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5078,7 +5369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5091,6 +5383,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/getAttributeNodeNS",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-getattributenodens",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5118,7 +5413,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5131,6 +5427,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/getAttributeNS",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-getattributens①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5141,7 +5440,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Starting in Firefox 13, <code>null</code> is always returned instead of the empty string, as per the DOM4 specification. Previously, there were cases in which an empty string could be returned."
+              "notes": "Starting in Firefox 13, `null` is always returned instead of the empty string, as per the DOM4 specification. Previously, there were cases in which an empty string could be returned."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -5159,7 +5458,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5204,7 +5504,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5244,7 +5545,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -5286,7 +5588,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5299,6 +5602,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/getElementsByClassName",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-getelementsbyclassname",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5312,12 +5618,12 @@
                 "version_added": "12",
                 "version_removed": "16",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+                "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
               }
             ],
             "firefox": {
               "version_added": "3",
-              "notes": "Before Firefox 19, this method was returning a <code>NodeList</code>; it was then changed to reflect the change in the spec."
+              "notes": "Before Firefox 19, this method was returning a `NodeList`; it was then changed to reflect the change in the spec."
             },
             "firefox_android": {
               "version_added": "4"
@@ -5325,7 +5631,7 @@
             "ie": {
               "version_added": "9",
               "partial_implementation": true,
-              "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+              "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
             },
             "oculus": "mirror",
             "opera": {
@@ -5339,7 +5645,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5352,10 +5659,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/getElementsByTagName",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-getelementsbytagname",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Initially, this method was returning a <code>NodeList</code>; it was then changed to reflect the spec change."
+              "notes": "Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -5363,7 +5673,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 19, this method was returning a <code>NodeList</code>; it was then changed to reflect the change in the spec."
+              "notes": "Before Firefox 19, this method was returning a `NodeList`; it was then changed to reflect the change in the spec."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -5372,18 +5682,19 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "8",
-              "notes": "Initially, this method was returning a <code>NodeList</code>; it was then changed to reflect the spec change."
+              "notes": "Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change."
             },
             "opera_android": {
               "version_added": "10.1"
             },
             "safari": {
               "version_added": "1",
-              "notes": "Initially, this method was returning a <code>NodeList</code>; it was then changed to reflect the spec change."
+              "notes": "Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5393,7 +5704,10 @@
         },
         "all_elements_selector": {
           "__compat": {
-            "description": "<code>getElementsByTagName(\"*\")</code>",
+            "description": "`getElementsByTagName(\"*\")`",
+            "tags": [
+              "web-features:dom"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -5421,7 +5735,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5435,10 +5750,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/getElementsByTagNameNS",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-getelementsbytagnamens",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Initially, this method was returning a <code>NodeList</code>; it was then changed to reflect the spec change."
+              "notes": "Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -5447,13 +5765,13 @@
             "firefox": {
               "version_added": "1",
               "notes": [
-                "The behavior of <code>element.getElementsByTagNameNS</code> changed between Firefox 3.5 and Firefox 3.6. In Firefox 3.5 and before, this function would automatically case-fold any queries so that a search for \"foo\" would match \"Foo\" or \"foo\". In Firefox 3.6 and later this function is now case-sensitive so that a query for \"foo\" will only match \"foo\" and not \"Foo\". For more background on this, please see the <a href='https://bugzil.la/542185#c5'>comment from Henri Sivonen about the change</a>. You can also look at the <a href='https://developer.mozilla.org/docs/Case_Sensitivity_in_class_and_id_Names'>relevant part of the standard, which states which parts of the API are case-sensitive and which parts aren't</a>.",
-                "Before Firefox 19, this method was returning a <code>NodeList</code>; it was then changed to reflects the spec change."
+                "The behavior of `element.getElementsByTagNameNS` changed between Firefox 3.5 and Firefox 3.6. In Firefox 3.5 and before, this function would automatically case-fold any queries so that a search for \"foo\" would match \"Foo\" or \"foo\". In Firefox 3.6 and later this function is now case-sensitive so that a query for \"foo\" will only match \"foo\" and not \"Foo\". For more background on this, please see the [comment from Henri Sivonen about the change](https://bugzil.la/542185#c5). You can also look at the [relevant part of the standard, which states which parts of the API are case-sensitive and which parts aren't](https://developer.mozilla.org/docs/Case_Sensitivity_in_class_and_id_Names).",
+                "Before Firefox 19, this method was returning a `NodeList`; it was then changed to reflects the spec change."
               ]
             },
             "firefox_android": {
               "version_added": "4",
-              "notes": "Before Firefox 19, this method was returning a <code>NodeList</code>; it was then changed to reflects the spec change."
+              "notes": "Before Firefox 19, this method was returning a `NodeList`; it was then changed to reflects the spec change."
             },
             "ie": {
               "version_added": "9"
@@ -5461,19 +5779,20 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1",
-              "notes": "Initially, this method was returning a <code>NodeList</code>; it was then changed to reflect the spec change."
+              "notes": "Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change."
             },
             "opera_android": {
               "version_added": "≤12.1",
-              "notes": "Initially, this method was returning a <code>NodeList</code>; it was then changed to reflect the spec change."
+              "notes": "Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change."
             },
             "safari": {
               "version_added": "1",
-              "notes": "Initially, this method was returning a <code>NodeList</code>; it was then changed to reflect the spec change."
+              "notes": "Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5483,7 +5802,10 @@
         },
         "all_elements_selector": {
           "__compat": {
-            "description": "<code>getElementsByTagNameNS(namespaceURI, \"*\")</code>",
+            "description": "`getElementsByTagNameNS(namespaceURI, \"*\")`",
+            "tags": [
+              "web-features:dom"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -5511,7 +5833,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5546,7 +5869,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5557,7 +5881,7 @@
       },
       "gotpointercapture_event": {
         "__compat": {
-          "description": "<code>gotpointercapture</code> event",
+          "description": "`gotpointercapture` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/gotpointercapture_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-gotpointercapture-event",
@@ -5588,7 +5912,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5601,6 +5926,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/hasAttribute",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-hasattribute①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5628,7 +5956,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5641,6 +5970,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/hasAttributeNS",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-hasattributens①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5668,7 +6000,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5681,6 +6014,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/hasAttributes",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-hasattributes①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5691,7 +6027,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 35, it was implemented on the <code>Node</code> interface."
+              "notes": "Before Firefox 35, it was implemented on the `Node` interface."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -5709,7 +6045,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5745,7 +6082,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5758,6 +6096,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/id",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-id①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -5767,7 +6108,7 @@
                 "version_added": "1",
                 "version_removed": "23",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+                "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
               }
             ],
             "chrome_android": "mirror",
@@ -5793,7 +6134,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5806,6 +6148,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/innerHTML",
           "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-element-innerhtml",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5835,7 +6180,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5846,7 +6192,7 @@
       },
       "input_event": {
         "__compat": {
-          "description": "<code>input</code> event",
+          "description": "`input` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/input_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-input",
@@ -5868,7 +6214,7 @@
                 "version_added": "12",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Not supported on <code>select</code>, <code>checkbox</code>, or <code>radio</code> inputs."
+                "notes": "Not supported on `select`, `checkbox`, or `radio` inputs."
               }
             ],
             "firefox": {
@@ -5878,7 +6224,7 @@
             "ie": {
               "version_added": "9",
               "partial_implementation": true,
-              "notes": "Only supports <code>input</code> of type <code>text</code> and <code>password</code>."
+              "notes": "Only supports `input` of type `text` and `password`."
             },
             "oculus": "mirror",
             "opera": {
@@ -5892,7 +6238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5905,6 +6252,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/insertAdjacentElement",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-insertadjacentelement",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5918,7 +6268,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+                "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
               }
             ],
             "firefox": {
@@ -5928,7 +6278,7 @@
             "ie": {
               "version_added": "5",
               "partial_implementation": true,
-              "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+              "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
             },
             "oculus": "mirror",
             "opera": {
@@ -5944,7 +6294,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5957,6 +6308,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/insertAdjacentHTML",
           "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#the-insertadjacenthtml()-method",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5970,7 +6324,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+                "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
               }
             ],
             "firefox": {
@@ -5981,8 +6335,8 @@
               "version_added": "4",
               "partial_implementation": true,
               "notes": [
-                "Before Internet Explorer 10, throws an \"Invalid target element for this operation.\" error when called on a <code>&lt;table&gt;</code>, <code>&lt;tbody&gt;</code>, <code>&lt;thead&gt;</code>, or <code>&lt;tr&gt;</code> element.",
-                "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+                "Before Internet Explorer 10, throws an \"Invalid target element for this operation.\" error when called on a `&lt;table&gt;`, `&lt;tbody&gt;`, `&lt;thead&gt;`, or `&lt;tr&gt;` element.",
+                "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
               ]
             },
             "oculus": "mirror",
@@ -6001,7 +6355,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6014,6 +6369,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/insertAdjacentText",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-insertadjacenttext",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6027,7 +6385,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+                "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
               }
             ],
             "firefox": {
@@ -6037,7 +6395,7 @@
             "ie": {
               "version_added": "5",
               "partial_implementation": true,
-              "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>."
+              "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)."
             },
             "oculus": "mirror",
             "opera": {
@@ -6055,7 +6413,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6066,7 +6425,7 @@
       },
       "keydown_event": {
         "__compat": {
-          "description": "<code>keydown</code> event",
+          "description": "`keydown` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/keydown_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-keydown",
@@ -6099,7 +6458,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6110,7 +6470,7 @@
       },
       "keypress_event": {
         "__compat": {
-          "description": "<code>keypress</code> event",
+          "description": "`keypress` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/keypress_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-keypress",
@@ -6119,7 +6479,7 @@
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Chrome does not fire the <code>keypress</code> event for <a href='https://crbug.com/13891#c50'>known keyboard shortcuts</a>. Which keyboard shortcuts are known depends on the user's system. Use the <code>keydown</code> event to implement keyboard shortcuts."
+              "notes": "Chrome does not fire the `keypress` event for [known keyboard shortcuts](https://crbug.com/40879837#comment51). Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -6127,7 +6487,7 @@
             },
             "firefox": {
               "version_added": "6",
-              "notes": "As of Firefox 65, the <code>keypress</code> event is no longer fired for <a href='https://developer.mozilla.org/docs/Web/API/KeyboardEvent/keyCode#Non-printable_keys_(function_keys)'>non-printable keys</a>, except for the Enter key, and the Shift + Enter and Ctrl + Enter key combinations (these were kept for cross-browser compatibility purposes)."
+              "notes": "As of Firefox 65, the `keypress` event is no longer fired for [non-printable keys](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/keyCode#Non-printable_keys_(function_keys)), except for the Enter key, and the Shift + Enter and Ctrl + Enter key combinations (these were kept for cross-browser compatibility purposes)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -6136,11 +6496,11 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1",
-              "notes": "Opera does not fire the <code>keypress</code> event for <a href='https://crbug.com/13891#c50'>known keyboard shortcuts</a>. Which keyboard shortcuts are known depends on the user's system. Use the <code>keydown</code> event to implement keyboard shortcuts."
+              "notes": "Opera does not fire the `keypress` event for [known keyboard shortcuts](https://crbug.com/40879837#comment51). Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts."
             },
             "opera_android": {
               "version_added": "≤12.1",
-              "notes": "Opera does not fire the <code>keypress</code> event for <a href='https://crbug.com/13891#c50'>known keyboard shortcuts</a>. Which keyboard shortcuts are known depends on the user's system. Use the <code>keydown</code> event to implement keyboard shortcuts."
+              "notes": "Opera does not fire the `keypress` event for [known keyboard shortcuts](https://crbug.com/40879837#comment51). Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts."
             },
             "safari": {
               "version_added": "1.3"
@@ -6149,8 +6509,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1",
-              "notes": "Chrome does not fire the <code>keypress</code> event for <a href='https://crbug.com/13891#c50'>known keyboard shortcuts</a>. Which keyboard shortcuts are known depends on the user's system. Use the <code>keydown</code> event to implement keyboard shortcuts."
-            }
+              "notes": "Chrome does not fire the `keypress` event for [known keyboard shortcuts](https://crbug.com/40879837#comment51). Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6161,7 +6522,7 @@
       },
       "keyup_event": {
         "__compat": {
-          "description": "<code>keyup</code> event",
+          "description": "`keyup` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/keyup_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-keyup",
@@ -6194,7 +6555,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6207,6 +6569,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/lastElementChild",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-lastelementchild①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -6238,7 +6603,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6251,6 +6617,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/localName",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-localname①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6278,7 +6647,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6289,7 +6659,7 @@
       },
       "lostpointercapture_event": {
         "__compat": {
-          "description": "<code>lostpointercapture</code> event",
+          "description": "`lostpointercapture` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/lostpointercapture_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-lostpointercapture-event",
@@ -6320,7 +6690,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6333,6 +6704,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/matches",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-matches①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": [
               {
@@ -6371,7 +6745,7 @@
                 "version_added": "3.6",
                 "notes": [
                   "Before Firefox 4, invalid selector strings caused false to be returned instead of throwing an exception.",
-                  "See <a href='https://bugzil.la/1119718'>bug 1119718</a> for removal."
+                  "See [bug 1119718](https://bugzil.la/1119718) for removal."
                 ]
               }
             ],
@@ -6386,7 +6760,7 @@
               {
                 "alternative_name": "mozMatchesSelector",
                 "version_added": "4",
-                "notes": "See <a href='https://bugzil.la/1119718'>bug 1119718</a> for removal."
+                "notes": "See [bug 1119718](https://bugzil.la/1119718) for removal."
               }
             ],
             "ie": {
@@ -6441,7 +6815,8 @@
                 "alternative_name": "webkitMatchesSelector",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6452,7 +6827,7 @@
       },
       "mousedown_event": {
         "__compat": {
-          "description": "<code>mousedown</code> event",
+          "description": "`mousedown` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/mousedown_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-mousedown",
@@ -6490,7 +6865,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6501,7 +6877,7 @@
       },
       "mouseenter_event": {
         "__compat": {
-          "description": "<code>mouseenter</code> event",
+          "description": "`mouseenter` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/mouseenter_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-mouseenter",
@@ -6535,7 +6911,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6546,7 +6923,7 @@
       },
       "mouseleave_event": {
         "__compat": {
-          "description": "<code>mouseleave</code> event",
+          "description": "`mouseleave` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/mouseleave_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-mouseleave",
@@ -6580,7 +6957,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6591,7 +6969,7 @@
       },
       "mousemove_event": {
         "__compat": {
-          "description": "<code>mousemove</code> event",
+          "description": "`mousemove` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/mousemove_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-mousemove",
@@ -6629,7 +7007,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6640,7 +7019,7 @@
       },
       "mouseout_event": {
         "__compat": {
-          "description": "<code>mouseout</code> event",
+          "description": "`mouseout` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/mouseout_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-mouseout",
@@ -6678,7 +7057,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6689,7 +7069,7 @@
       },
       "mouseover_event": {
         "__compat": {
-          "description": "<code>mouseover</code> event",
+          "description": "`mouseover` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/mouseover_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-mouseover",
@@ -6727,7 +7107,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6738,7 +7119,7 @@
       },
       "mouseup_event": {
         "__compat": {
-          "description": "<code>mouseup</code> event",
+          "description": "`mouseup` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/mouseup_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-mouseup",
@@ -6776,7 +7157,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6787,7 +7169,7 @@
       },
       "mousewheel_event": {
         "__compat": {
-          "description": "<code>mousewheel</code> event",
+          "description": "`mousewheel` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/mousewheel_event",
           "support": {
             "chrome": {
@@ -6818,7 +7200,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6831,6 +7214,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/namespaceURI",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-namespaceuri①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6858,7 +7244,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6871,6 +7258,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/nextElementSibling",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-nondocumenttypechildnode-nextelementsibling②",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -6902,7 +7292,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6915,6 +7306,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/outerHTML",
           "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-element-outerhtml",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6944,7 +7338,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6957,6 +7352,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/part",
           "spec_url": "https://drafts.csswg.org/css-shadow-parts/#idl",
+          "tags": [
+            "web-features:shadow-parts"
+          ],
           "support": {
             "chrome": {
               "version_added": "73"
@@ -6978,7 +7376,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6989,12 +7388,15 @@
       },
       "paste_event": {
         "__compat": {
-          "description": "<code>paste</code> event",
+          "description": "`paste` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/paste_event",
           "spec_url": [
             "https://w3c.github.io/clipboard-apis/#clipboard-event-paste",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onpaste"
           ],
+          "tags": [
+            "web-features:clipboard-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7010,8 +7412,8 @@
             "ie": {
               "version_added": "9",
               "notes": [
-                "Before Internet Explorer 11, copying files does not trigger the <code>paste</code> event.",
-                "Before Internet Explorer 9, this event is not supported via <code>addEventListener</code>; however, the event handler is supported since IE 5.5. The event can be listened to via <code>element.oncopy</code>."
+                "Before Internet Explorer 11, copying files does not trigger the `paste` event.",
+                "Before Internet Explorer 9, this event is not supported via `addEventListener`; however, the event handler is supported since IE 5.5. The event can be listened to via `element.oncopy`."
               ]
             },
             "oculus": "mirror",
@@ -7030,7 +7432,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7041,7 +7444,7 @@
       },
       "pointercancel_event": {
         "__compat": {
-          "description": "<code>pointercancel</code> event",
+          "description": "`pointercancel` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/pointercancel_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-pointercancel-event",
@@ -7085,7 +7488,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7096,7 +7500,7 @@
       },
       "pointerdown_event": {
         "__compat": {
-          "description": "<code>pointerdown</code> event",
+          "description": "`pointerdown` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/pointerdown_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-pointerdown-event",
@@ -7140,7 +7544,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7151,7 +7556,7 @@
       },
       "pointerenter_event": {
         "__compat": {
-          "description": "<code>pointerenter</code> event",
+          "description": "`pointerenter` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/pointerenter_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-pointerenter-event",
@@ -7195,7 +7600,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7206,7 +7612,7 @@
       },
       "pointerleave_event": {
         "__compat": {
-          "description": "<code>pointerleave</code> event",
+          "description": "`pointerleave` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/pointerleave_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-pointerleave-event",
@@ -7250,7 +7656,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7261,7 +7668,7 @@
       },
       "pointermove_event": {
         "__compat": {
-          "description": "<code>pointermove</code> event",
+          "description": "`pointermove` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/pointermove_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-pointermove-event",
@@ -7305,7 +7712,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7316,7 +7724,7 @@
       },
       "pointerout_event": {
         "__compat": {
-          "description": "<code>pointerout</code> event",
+          "description": "`pointerout` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/pointerout_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-pointerout-event",
@@ -7360,7 +7768,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7371,7 +7780,7 @@
       },
       "pointerover_event": {
         "__compat": {
-          "description": "<code>pointerover</code> event",
+          "description": "`pointerover` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/pointerover_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-pointerover-event",
@@ -7415,7 +7824,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7426,7 +7836,7 @@
       },
       "pointerrawupdate_event": {
         "__compat": {
-          "description": "<code>pointerrawupdate</code> event",
+          "description": "`pointerrawupdate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/pointerrawupdate_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-pointerrawupdate-event",
@@ -7453,7 +7863,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -7464,7 +7875,7 @@
       },
       "pointerup_event": {
         "__compat": {
-          "description": "<code>pointerup</code> event",
+          "description": "`pointerup` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/pointerup_event",
           "spec_url": [
             "https://w3c.github.io/pointerevents/#the-pointerup-event",
@@ -7508,7 +7919,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7521,6 +7933,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/prefix",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-prefix①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7548,7 +7963,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7561,6 +7977,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/prepend",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-prepend①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -7584,7 +8003,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7597,6 +8017,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/previousElementSibling",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-nondocumenttypechildnode-previouselementsibling②",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -7628,7 +8051,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7641,6 +8065,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/querySelector",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-queryselectorall①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7660,7 +8087,7 @@
               {
                 "version_added": "8",
                 "partial_implementation": true,
-                "notes": "<code>querySelector()</code> is supported, but only for CSS 2.1 selectors."
+                "notes": "`querySelector()` is supported, but only for CSS 2.1 selectors."
               }
             ],
             "oculus": "mirror",
@@ -7675,7 +8102,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7688,6 +8116,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/querySelectorAll",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-queryselectorall①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7707,7 +8138,7 @@
               {
                 "version_added": "8",
                 "partial_implementation": true,
-                "notes": "<code>querySelectorAll()</code> is supported, but only for CSS 2.1 selectors."
+                "notes": "`querySelectorAll()` is supported, but only for CSS 2.1 selectors."
               }
             ],
             "oculus": "mirror",
@@ -7722,7 +8153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7766,7 +8198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7779,6 +8212,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/remove",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-remove①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -7802,7 +8238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7815,6 +8252,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/removeAttribute",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-removeattribute①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7822,7 +8262,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "This function doesn't respect boolean attributes' default values. See <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/12087679/'>bug 12087679</a>."
+              "notes": "This function doesn't respect boolean attributes' default values. See [bug 12087679](https://developer.microsoft.com/microsoft-edge/platform/issues/12087679/)."
             },
             "firefox": {
               "version_added": "1"
@@ -7843,7 +8283,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7856,6 +8297,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/removeAttributeNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-removeattributenode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7883,7 +8327,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7896,6 +8341,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/removeAttributeNS",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-removeattributens①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7923,7 +8371,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7936,6 +8385,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/replaceChildren",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-parentnode-replacechildren①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -7957,7 +8409,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7970,6 +8423,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/replaceWith",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-childnode-replacewith①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -7995,7 +8451,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8042,19 +8499,10 @@
               {
                 "alternative_name": "mozRequestFullScreen",
                 "version_added": "9",
-                "notes": "Before Firefox 44, Firefox incorrectly allowed elements inside a <code>&lt;frame&gt;</code> or <code>&lt;object&gt;</code> element to request, and to be granted, fullscreen. In Firefox 44 and onwards this has been fixed: only elements in the top-level document or in an <code>&lt;iframe&gt;</code> element with the <code>allowfullscreen</code> attribute can be displayed fullscreen."
-              }
-            ],
-            "firefox_android": [
-              {
-                "version_added": "64"
-              },
-              {
-                "alternative_name": "mozRequestFullScreen",
-                "version_added": "9",
-                "notes": "Before Firefox 44, Firefox incorrectly allowed elements inside a <code>&lt;frame&gt;</code> or an <code>&lt;object&gt;</code> to request, and to be granted, fullscreen. In Firefox 44 and onwards this has been fixed: only elements in the top-level document or in an <code><code>&lt;iframe&gt;</code></code> with the <code>allowfullscreen</code> attribute can be displayed fullscreen."
+                "notes": "Before Firefox 44, Firefox incorrectly allowed elements inside a `&lt;frame&gt;` or `&lt;object&gt;` element to request, and to be granted, fullscreen. In Firefox 44 and onwards this has been fixed: only elements in the top-level document or in an `&lt;iframe&gt;` element with the `allowfullscreen` attribute can be displayed fullscreen."
               }
             ],
+            "firefox_android": "mirror",
             "ie": {
               "prefix": "ms",
               "version_added": "11"
@@ -8120,7 +8568,10 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -8130,7 +8581,7 @@
         },
         "options_navigationUI_parameter": {
           "__compat": {
-            "description": "<code>options.navigationUI</code> parameter",
+            "description": "`options.navigationUI` parameter",
             "spec_url": "https://fullscreen.spec.whatwg.org/#dom-fullscreenoptions-navigationui",
             "support": {
               "chrome": {
@@ -8155,7 +8606,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8166,8 +8618,11 @@
         },
         "options_screen_parameter": {
           "__compat": {
-            "description": "<code>options.screen</code> parameter",
+            "description": "`options.screen` parameter",
             "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-fullscreenoptions-screen",
+            "tags": [
+              "web-features:window-management"
+            ],
             "support": {
               "chrome": {
                 "version_added": "100"
@@ -8191,7 +8646,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -8202,7 +8658,7 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
             "tags": [
               "web-features:fullscreen"
             ],
@@ -8227,7 +8683,10 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
@@ -8248,7 +8707,7 @@
             "chrome": [
               {
                 "version_added": "37",
-                "notes": "From version 92, returns a promise instead of <code>undefined</code>. The behavior reflects <a href='https://github.com/w3c/pointerlock/pull/49'>a proposed specification change</a>."
+                "notes": "From version 92, returns a promise instead of `undefined`. The behavior reflects [a proposed specification change](https://github.com/w3c/pointerlock/pull/49)."
               },
               {
                 "prefix": "webkit",
@@ -8259,7 +8718,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "13",
-              "notes": "From version 92, returns a promise instead of <code>undefined</code>. The behavior reflects <a href='https://github.com/w3c/pointerlock/pull/49'>a proposed specification change</a>."
+              "notes": "From version 92, returns a promise instead of `undefined`. The behavior reflects [a proposed specification change](https://github.com/w3c/pointerlock/pull/49)."
             },
             "firefox": [
               {
@@ -8287,7 +8746,7 @@
             "samsunginternet_android": [
               {
                 "version_added": "3.0",
-                "notes": "From version 16, returns a promise instead of <code>undefined</code>. The behavior reflects <a href='https://github.com/w3c/pointerlock/pull/49'>a proposed specification change</a>."
+                "notes": "From version 16, returns a promise instead of `undefined`. The behavior reflects [a proposed specification change](https://github.com/w3c/pointerlock/pull/49)."
               },
               {
                 "prefix": "webkit",
@@ -8295,7 +8754,8 @@
                 "version_removed": "3.0"
               }
             ],
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8305,7 +8765,7 @@
         },
         "options_unadjustedMovement_parameter": {
           "__compat": {
-            "description": "<code>options.unadjustedMovement</code> parameter",
+            "description": "`options.unadjustedMovement` parameter",
             "support": {
               "chrome": {
                 "version_added": "88",
@@ -8328,7 +8788,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -8365,7 +8826,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8399,7 +8861,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8409,7 +8872,7 @@
         },
         "options_behavior_parameter": {
           "__compat": {
-            "description": "<code>options.behavior</code> parameter",
+            "description": "`options.behavior` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -8431,7 +8894,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8442,7 +8906,7 @@
         },
         "options_left_parameter": {
           "__compat": {
-            "description": "<code>options.left</code> parameter",
+            "description": "`options.left` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -8464,7 +8928,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8475,7 +8940,7 @@
         },
         "options_top_parameter": {
           "__compat": {
-            "description": "<code>options.top</code> parameter",
+            "description": "`options.top` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -8497,7 +8962,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8509,7 +8975,7 @@
       },
       "scroll_event": {
         "__compat": {
-          "description": "<code>scroll</code> event",
+          "description": "`scroll` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/scroll_event",
           "spec_url": [
             "https://drafts.csswg.org/cssom-view/#eventdef-document-scroll",
@@ -8542,7 +9008,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8576,7 +9043,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8586,7 +9054,7 @@
         },
         "options_behavior_parameter": {
           "__compat": {
-            "description": "<code>options.behavior</code> parameter",
+            "description": "`options.behavior` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -8608,7 +9076,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8619,7 +9088,7 @@
         },
         "options_left_parameter": {
           "__compat": {
-            "description": "<code>options.left</code> parameter",
+            "description": "`options.left` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -8641,7 +9110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8652,7 +9122,7 @@
         },
         "options_top_parameter": {
           "__compat": {
-            "description": "<code>options.top</code> parameter",
+            "description": "`options.top` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -8674,7 +9144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8686,7 +9157,7 @@
       },
       "scrollend_event": {
         "__compat": {
-          "description": "<code>scrollend</code> event",
+          "description": "`scrollend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/scrollend_event",
           "spec_url": [
             "https://drafts.csswg.org/cssom-view/#eventdef-document-scrollend",
@@ -8717,7 +9188,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8746,13 +9218,13 @@
                 "version_added": "3",
                 "version_removed": "21",
                 "partial_implementation": true,
-                "notes": "Before Firefox 21, when an element's content does not generate a vertical scrollbar, then its <code>scrollHeight</code> property is equal to its <code>clientHeight</code> property. This can mean either the content is too short to require a scrollbar or that the element has a CSS style <code>overflow</code> value of <code>visible</code> (non-scrollable)."
+                "notes": "Before Firefox 21, when an element's content does not generate a vertical scrollbar, then its `scrollHeight` property is equal to its `clientHeight` property. This can mean either the content is too short to require a scrollbar or that the element has a CSS style `overflow` value of `visible` (non-scrollable)."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5",
-              "notes": "In Internet Explorer 5 through 7, if padding is set, the value of <code>scrollHeight</code> is equal to the sum of the top and bottom padding. This behavior was fixed in Internet Explorer 8."
+              "notes": "In Internet Explorer 5 through 7, if padding is set, the value of `scrollHeight` is equal to the sum of the top and bottom padding. This behavior was fixed in Internet Explorer 8."
             },
             "oculus": "mirror",
             "opera": {
@@ -8766,7 +9238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8795,15 +9268,15 @@
                 "version_added": "17",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "The only parameter supported is <code>alignToTop</code>."
+                "notes": "The only parameter supported is `alignToTop`."
               },
               {
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
                 "notes": [
-                  "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>.",
-                  "No support for <code>smooth</code> behavior."
+                  "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement).",
+                  "No support for `smooth` behavior."
                 ]
               }
             ],
@@ -8815,8 +9288,8 @@
               "version_added": "5",
               "partial_implementation": true,
               "notes": [
-                "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Element</code> objects, such as <a href='https://developer.mozilla.org/docs/Web/API/SVGElement'><code>SVGElement</code></a>.",
-                "No support for <code>smooth</code> behavior or <code>center</code> options."
+                "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Element` objects, such as [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement).",
+                "No support for `smooth` behavior or `center` options."
               ]
             },
             "oculus": "mirror",
@@ -8829,19 +9302,20 @@
             "safari": {
               "version_added": "3",
               "notes": [
-                "No support for <code>center</code> option.",
-                "Before Safari 15.4, there was no support for the <code>smooth</code> behavior."
+                "No support for `center` option.",
+                "Before Safari 15.4, there was no support for the `smooth` behavior."
               ]
             },
             "safari_ios": {
               "version_added": "1",
               "notes": [
-                "No support for <code>center</code> option.",
-                "Before iOS 15.4, there was no support for the <code>smooth</code> behavior."
+                "No support for `center` option.",
+                "Before iOS 15.4, there was no support for the `smooth` behavior."
               ]
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8851,22 +9325,22 @@
         },
         "options_parameter": {
           "__compat": {
-            "description": "<code>options</code> parameter",
+            "description": "`options` parameter",
             "tags": [
               "web-features:scroll-into-view"
             ],
             "support": {
               "chrome": {
                 "version_added": "61",
-                "notes": "The <code>block</code> and <code>inline</code> options support the values <code>start</code>, <code>center</code>, <code>end</code>, <code>nearest</code>."
+                "notes": "The `block` and `inline` options support the values `start`, `center`, `end`, `nearest`."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
                 "version_added": "36",
                 "notes": [
-                  "No support for <code>inline</code> option.",
-                  "Before Firefox 58, <code>nearest</code> and <code>center</code> values for the <code>block</code> option was unsupported. See <a href='https://bugzil.la/1389274'>bug 1389274</a>."
+                  "No support for `inline` option.",
+                  "Before Firefox 58, `nearest` and `center` values for the `block` option was unsupported. See [bug 1389274](https://bugzil.la/1389274)."
                 ]
               },
               "firefox_android": "mirror",
@@ -8881,7 +9355,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8917,7 +9392,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8938,7 +9414,7 @@
               {
                 "version_added": "1",
                 "version_removed": "86",
-                "notes": "For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See <a href='https://crbug.com/721759'>bug 721759</a>."
+                "notes": "For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See [bug 41319147](https://crbug.com/41319147)."
               }
             ],
             "chrome_android": "mirror",
@@ -8949,7 +9425,7 @@
               {
                 "version_added": "12",
                 "version_removed": "86",
-                "notes": "For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See <a href='https://crbug.com/721759'>bug 721759</a>."
+                "notes": "For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See [bug 41319147](https://crbug.com/41319147)."
               }
             ],
             "firefox": {
@@ -8972,7 +9448,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9005,7 +9482,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9014,6 +9492,86 @@
           }
         }
       },
+      "scrollsnapchange_event": {
+        "__compat": {
+          "description": "`scrollsnapchange` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/scrollsnapchange_event",
+          "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#scrollsnapchange",
+          "tags": [
+            "web-features:scroll-snap-events"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1843961"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "scrollsnapchanging_event": {
+        "__compat": {
+          "description": "`scrollsnapchanging` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/scrollsnapchanging_event",
+          "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#scrollsnapchanging",
+          "tags": [
+            "web-features:scroll-snap-events"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1843961"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "scrollTo": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/scrollTo",
@@ -9039,7 +9597,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9049,7 +9608,7 @@
         },
         "options_behavior_parameter": {
           "__compat": {
-            "description": "<code>options.behavior</code> parameter",
+            "description": "`options.behavior` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -9071,7 +9630,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -9082,7 +9642,7 @@
         },
         "options_left_parameter": {
           "__compat": {
-            "description": "<code>options.left</code> parameter",
+            "description": "`options.left` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -9104,7 +9664,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -9115,7 +9676,7 @@
         },
         "options_top_parameter": {
           "__compat": {
-            "description": "<code>options.top</code> parameter",
+            "description": "`options.top` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -9137,7 +9698,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -9178,7 +9740,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9211,7 +9774,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9238,7 +9802,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5",
-              "notes": "In Internet Explorer 5 through 7, if padding is set, the value of <code>scrollWidth</code> is equal to the sum of the left and right padding. This behavior was fixed in Internet Explorer 8."
+              "notes": "In Internet Explorer 5 through 7, if padding is set, the value of `scrollWidth` is equal to the sum of the left and right padding. This behavior was fixed in Internet Explorer 8."
             },
             "oculus": "mirror",
             "opera": {
@@ -9252,7 +9816,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9263,12 +9828,15 @@
       },
       "securitypolicyviolation_event": {
         "__compat": {
-          "description": "<code>securitypolicyviolation</code> event",
+          "description": "`securitypolicyviolation` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/securitypolicyviolation_event",
           "spec_url": [
             "https://w3c.github.io/webappsec-csp/#eventdef-globaleventhandlers-securitypolicyviolation",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onsecuritypolicyviolation"
           ],
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -9292,7 +9860,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9305,6 +9874,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/setAttribute",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-setattribute①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -9319,7 +9891,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5",
-              "notes": "In Internet Explorer 7 and earlier, <code>setAttribute</code> doesn't set styles and removes events when you try to set them."
+              "notes": "In Internet Explorer 7 and earlier, `setAttribute` doesn't set styles and removes events when you try to set them."
             },
             "oculus": "mirror",
             "opera": {
@@ -9333,7 +9905,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9346,6 +9919,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/setAttributeNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-setattributenode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -9373,7 +9949,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9386,6 +9963,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/setAttributeNodeNS",
           "spec_url": "https://dom.spec.whatwg.org/#dom-element-setattributenodens",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -9393,7 +9973,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Returns a <code>ClientRectList</code> with <a href='https://docs.microsoft.com/en-us/previous-versions/hh826029(v=vs.85)'><code>ClientRect</code></a> objects (which do not contain <code>x</code> and <code>y</code> properties) instead of <a href='https://developer.mozilla.org/docs/Web/API/DOMRect'><code>DOMRect</code></a> objects."
+              "notes": "Returns a `ClientRectList` with [`ClientRect`](https://docs.microsoft.com/en-us/previous-versions/hh826029(v=vs.85)) objects (which do not contain `x` and `y` properties) instead of [`DOMRect`](https://developer.mozilla.org/docs/Web/API/DOMRect) objects."
             },
             "firefox": {
               "version_added": "1"
@@ -9401,7 +9981,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "Returns a <code>ClientRectList</code> with <a href='https://docs.microsoft.com/en-us/previous-versions/hh826029(v=vs.85)'><code>ClientRect</code></a> objects (which do not contain <code>x</code> and <code>y</code> properties) instead of <a href='https://developer.mozilla.org/docs/Web/API/DOMRect'><code>DOMRect</code></a> objects."
+              "notes": "Returns a `ClientRectList` with [`ClientRect`](https://docs.microsoft.com/en-us/previous-versions/hh826029(v=vs.85)) objects (which do not contain `x` and `y` properties) instead of [`DOMRect`](https://developer.mozilla.org/docs/Web/API/DOMRect) objects."
             },
             "oculus": "mirror",
             "opera": {
@@ -9415,7 +9995,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9428,6 +10009,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/setAttributeNS",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-setattributens①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -9455,7 +10039,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9482,7 +10067,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5",
-              "notes": "The <code>retargetToElement</code> parameter to <code>Element.setCapture()</code> was introduced in Internet Explorer 5.5."
+              "notes": "The `retargetToElement` parameter to `Element.setCapture()` was introduced in Internet Explorer 5.5."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -9492,7 +10077,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9529,7 +10115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9552,11 +10139,11 @@
             },
             "firefox": {
               "version_added": "59",
-              "notes": "Before Firefox 82, <code>setPointerCapture()</code> throws <code>InvalidPointerId</code> for an invalid <code>pointerId</code> argument. From Firefox 82, it throws <a href='https://w3c.github.io/pointerevents/#setting-pointer-capture'>the specified</a> <code>NotFoundError</code> exception. See <a href='https://bugzil.la/1662124'>bug 1662124</a>."
+              "notes": "Before Firefox 82, `setPointerCapture()` throws `InvalidPointerId` for an invalid `pointerId` argument. From Firefox 82, it throws [the specified](https://w3c.github.io/pointerevents/#setting-pointer-capture) `NotFoundError` exception. See [bug 1662124](https://bugzil.la/1662124)."
             },
             "firefox_android": {
               "version_added": "79",
-              "notes": "Before Firefox 82, <code>setPointerCapture()</code> throws <code>InvalidPointerId</code> for an invalid <code>pointerId</code> argument. From Firefox 82, it throws <a href='https://w3c.github.io/pointerevents/#setting-pointer-capture'>the specified</a> <code>NotFoundError</code> exception. See <a href='https://bugzil.la/1662124'>bug 1662124</a>."
+              "notes": "Before Firefox 82, `setPointerCapture()` throws `InvalidPointerId` for an invalid `pointerId` argument. From Firefox 82, it throws [the specified](https://w3c.github.io/pointerevents/#setting-pointer-capture) `NotFoundError` exception. See [bug 1662124](https://bugzil.la/1662124)."
             },
             "ie": [
               {
@@ -9575,7 +10162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9612,7 +10200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9649,7 +10238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9662,6 +10252,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/tagName",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-tagname①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -9689,7 +10282,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9702,6 +10296,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/toggleAttribute",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-element-toggleattribute①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -9725,7 +10322,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9736,12 +10334,15 @@
       },
       "touchcancel_event": {
         "__compat": {
-          "description": "<code>touchcancel</code> event",
+          "description": "`touchcancel` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/touchcancel_event",
           "spec_url": [
             "https://w3c.github.io/touch-events/#event-touchcancel",
             "https://w3c.github.io/touch-events/#dom-globaleventhandlers-ontouchcancel"
           ],
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -9771,7 +10372,8 @@
               "version_added": "≤3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9782,12 +10384,15 @@
       },
       "touchend_event": {
         "__compat": {
-          "description": "<code>touchend</code> event",
+          "description": "`touchend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/touchend_event",
           "spec_url": [
             "https://w3c.github.io/touch-events/#event-touchend",
             "https://w3c.github.io/touch-events/#dom-globaleventhandlers-ontouchend"
           ],
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -9817,7 +10422,8 @@
               "version_added": "≤3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9828,12 +10434,15 @@
       },
       "touchmove_event": {
         "__compat": {
-          "description": "<code>touchmove</code> event",
+          "description": "`touchmove` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/touchmove_event",
           "spec_url": [
             "https://w3c.github.io/touch-events/#event-touchmove",
             "https://w3c.github.io/touch-events/#dom-globaleventhandlers-ontouchmove"
           ],
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -9863,7 +10472,8 @@
               "version_added": "≤3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9874,12 +10484,15 @@
       },
       "touchstart_event": {
         "__compat": {
-          "description": "<code>touchstart</code> event",
+          "description": "`touchstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/touchstart_event",
           "spec_url": [
             "https://w3c.github.io/touch-events/#event-touchstart",
             "https://w3c.github.io/touch-events/#dom-globaleventhandlers-ontouchstart"
           ],
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -9909,7 +10522,8 @@
               "version_added": "≤3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9920,12 +10534,15 @@
       },
       "transitioncancel_event": {
         "__compat": {
-          "description": "<code>transitioncancel</code> event",
+          "description": "`transitioncancel` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/transitioncancel_event",
           "spec_url": [
             "https://drafts.csswg.org/css-transitions/#transitioncancel",
             "https://drafts.csswg.org/css-transitions/#dom-globaleventhandlers-ontransitioncancel"
           ],
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": [
               {
@@ -9935,7 +10552,7 @@
                 "version_added": "74",
                 "version_removed": "87",
                 "partial_implementation": true,
-                "notes": "The <code>ontransitioncancel</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('transitioncancel', function() {});</code>."
+                "notes": "The `ontransitioncancel` event handler property is not supported. To listen to this event, use `element.addEventListener('transitioncancel', function() {});`."
               }
             ],
             "chrome_android": "mirror",
@@ -9958,12 +10575,13 @@
                 "version_added": "12",
                 "version_removed": "13.1",
                 "partial_implementation": true,
-                "notes": "Although the <code>ontransitioncancel</code> event handler property is supported, the <code>transitioncancel</code> event is never fired."
+                "notes": "Although the `ontransitioncancel` event handler property is supported, the `transitioncancel` event is never fired."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9974,9 +10592,12 @@
       },
       "transitionend_event": {
         "__compat": {
-          "description": "<code>transitionend</code> event",
+          "description": "`transitionend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/transitionend_event",
           "spec_url": "https://drafts.csswg.org/css-transitions/#transitionend",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": [
               {
@@ -10000,7 +10621,7 @@
                 "version_added": "12",
                 "version_removed": "18",
                 "partial_implementation": true,
-                "notes": "The <code>ontransitionend</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('transitionend', function() {});</code>."
+                "notes": "The `ontransitionend` event handler property is not supported. To listen to this event, use `element.addEventListener('transitionend', function() {});`."
               }
             ],
             "firefox": {
@@ -10010,7 +10631,7 @@
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>ontransitionend</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('transitionend', function() {});</code>."
+              "notes": "The `ontransitionend` event handler property is not supported. To listen to this event, use `element.addEventListener('transitionend', function() {});`."
             },
             "oculus": "mirror",
             "opera": [
@@ -10052,7 +10673,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -10063,9 +10685,12 @@
       },
       "transitionrun_event": {
         "__compat": {
-          "description": "<code>transitionrun</code> event",
+          "description": "`transitionrun` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/transitionrun_event",
           "spec_url": "https://drafts.csswg.org/css-transitions/#transitionrun",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -10081,7 +10706,7 @@
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>ontransitionrun</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('transitionrun', function() {});</code>."
+              "notes": "The `ontransitionrun` event handler property is not supported. To listen to this event, use `element.addEventListener('transitionrun', function() {});`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -10098,7 +10723,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -10109,9 +10735,12 @@
       },
       "transitionstart_event": {
         "__compat": {
-          "description": "<code>transitionstart</code> event",
+          "description": "`transitionstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/transitionstart_event",
           "spec_url": "https://drafts.csswg.org/css-transitions/#transitionstart",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -10127,7 +10756,7 @@
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>ontransitionstart</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('transitionstart', function() {});</code>."
+              "notes": "The `ontransitionstart` event handler property is not supported. To listen to this event, use `element.addEventListener('transitionstart', function() {});`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -10144,7 +10773,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -10155,7 +10785,7 @@
       },
       "webkitmouseforcechanged_event": {
         "__compat": {
-          "description": "<code>webkitmouseforcechanged</code> event",
+          "description": "`webkitmouseforcechanged` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/webkitmouseforcechanged_event",
           "support": {
             "chrome": {
@@ -10180,7 +10810,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -10191,7 +10822,7 @@
       },
       "webkitmouseforcedown_event": {
         "__compat": {
-          "description": "<code>webkitmouseforcedown</code> event",
+          "description": "`webkitmouseforcedown` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/webkitmouseforcedown_event",
           "support": {
             "chrome": {
@@ -10216,7 +10847,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -10227,7 +10859,7 @@
       },
       "webkitmouseforceup_event": {
         "__compat": {
-          "description": "<code>webkitmouseforceup</code> event",
+          "description": "`webkitmouseforceup` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/webkitmouseforceup_event",
           "support": {
             "chrome": {
@@ -10252,7 +10884,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -10263,7 +10896,7 @@
       },
       "webkitmouseforcewillbegin_event": {
         "__compat": {
-          "description": "<code>webkitmouseforcewillbegin</code> event",
+          "description": "`webkitmouseforcewillbegin` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/webkitmouseforcewillbegin_event",
           "support": {
             "chrome": {
@@ -10288,7 +10921,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -10299,7 +10933,7 @@
       },
       "wheel_event": {
         "__compat": {
-          "description": "<code>wheel</code> event",
+          "description": "`wheel` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/wheel_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-wheel",
@@ -10319,7 +10953,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "The <code>onwheel</code> event handler property is not supported. To listen to this event, use <code>element.addEventListener('wheel', function() {});</code>. See <a href='https://connect.microsoft.com/IE/feedback/details/782835/missing-onwheel-attribute-for-the-wheel-event-although-its-supported-via-addeventlistener'>IE bug 782835</a>."
+              "notes": "The `onwheel` event handler property is not supported. To listen to this event, use `element.addEventListener('wheel', function() {});`. See [IE bug 782835](https://connect.microsoft.com/IE/feedback/details/782835/missing-onwheel-attribute-for-the-wheel-event-although-its-supported-via-addeventlistener)."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -10331,7 +10965,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ElementInternals.json b/api/ElementInternals.json
index 4df697cfe33a03..22848e5dc5a008 100644
--- a/api/ElementInternals.json
+++ b/api/ElementInternals.json
@@ -29,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,6 +41,9 @@
       "ariaActiveDescendantElement": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaactivedescendantelement",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -61,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -74,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaAtomic",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaatomic",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -95,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaAutoComplete",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaautocomplete",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -129,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -141,6 +154,9 @@
       "ariaBrailleLabel": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariabraillelabel",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "107"
@@ -162,7 +178,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,6 +191,9 @@
       "ariaBrailleRoleDescription": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariabrailleroledescription",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "107"
@@ -195,7 +215,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,6 +229,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaBusy",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariabusy",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -229,7 +253,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -242,6 +267,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaChecked",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariachecked",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -263,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +305,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaColCount",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariacolcount",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -297,7 +329,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -310,6 +343,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaColIndex",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariacolindex",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -331,7 +367,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -344,6 +381,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaColIndexText",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariacolindextext",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "128"
@@ -365,7 +405,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -378,6 +419,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaColSpan",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariacolspan",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -399,7 +443,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -411,6 +456,9 @@
       "ariaControlsElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariacontrolselements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -432,7 +480,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -445,6 +494,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaCurrent",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariacurrent",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -466,7 +518,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -478,6 +531,9 @@
       "ariaDescribedByElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariadescribedbyelements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -499,7 +555,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -512,6 +569,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaDescription",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariadescription",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "83"
@@ -533,7 +593,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -545,6 +606,9 @@
       "ariaDetailsElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariadetailselements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -566,7 +630,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -579,6 +644,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaDisabled",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariadisabled",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -600,7 +668,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -612,6 +681,9 @@
       "ariaErrorMessageElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaerrormessageelements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -633,7 +705,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -646,6 +719,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaExpanded",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaexpanded",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -667,7 +743,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -679,6 +756,9 @@
       "ariaFlowToElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaflowtoelements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -700,7 +780,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -713,6 +794,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaHasPopup",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariahaspopup",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -734,7 +818,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -747,6 +832,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaHidden",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariahidden",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -768,7 +856,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -780,6 +869,9 @@
       "ariaInvalid": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariainvalid",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "102"
@@ -801,7 +893,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -814,6 +907,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaKeyShortcuts",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariakeyshortcuts",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -835,7 +931,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -848,6 +945,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaLabel",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-arialabel",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -869,7 +969,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -881,6 +982,9 @@
       "ariaLabelledByElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-arialabelledbyelements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -902,7 +1006,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -915,6 +1020,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaLevel",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-arialevel",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -936,7 +1044,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -949,6 +1058,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaLive",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-arialive",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -970,7 +1082,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -983,6 +1096,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaModal",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariamodal",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1004,7 +1120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1017,6 +1134,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaMultiLine",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariamultiline",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1038,7 +1158,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1051,6 +1172,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaMultiSelectable",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariamultiselectable",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1072,7 +1196,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1085,6 +1210,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaOrientation",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaorientation",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1106,7 +1234,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1118,6 +1247,9 @@
       "ariaOwnsElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaownselements",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -1139,7 +1271,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1152,6 +1285,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaPlaceholder",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaplaceholder",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1173,7 +1309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1186,6 +1323,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaPosInSet",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaposinset",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1207,7 +1347,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1220,6 +1361,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaPressed",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariapressed",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1241,7 +1385,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1254,6 +1399,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaReadOnly",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariareadonly",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1275,7 +1423,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1308,7 +1457,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1321,6 +1471,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaRequired",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariarequired",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1342,7 +1495,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1355,6 +1509,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaRoleDescription",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaroledescription",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1376,7 +1533,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1389,6 +1547,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaRowCount",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariarowcount",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1410,7 +1571,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1423,6 +1585,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaRowIndex",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariarowindex",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1444,7 +1609,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1457,6 +1623,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaRowIndexText",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariarowindextext",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "128"
@@ -1478,7 +1647,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1491,6 +1661,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaRowSpan",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariarowspan",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1512,7 +1685,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1525,6 +1699,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaSelected",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariaselected",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1546,7 +1723,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1559,6 +1737,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaSetSize",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariasetsize",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -1580,7 +1761,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1593,6 +1775,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaSort",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariasort",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1614,7 +1799,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1627,6 +1813,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaValueMax",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariavaluemax",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1648,7 +1837,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1661,6 +1851,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaValueMin",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariavaluemin",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1682,7 +1875,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1695,6 +1889,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaValueNow",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariavaluenow",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1716,7 +1913,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1729,6 +1927,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/ariaValueText",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-ariavaluetext",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -1750,7 +1951,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1787,7 +1989,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1824,7 +2027,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1861,7 +2065,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1898,7 +2103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1911,6 +2117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ElementInternals/role",
           "spec_url": "https://w3c.github.io/aria/#dom-ariamixin-role",
+          "tags": [
+            "web-features:aria-attribute-reflection"
+          ],
           "support": {
             "chrome": {
               "version_added": "103"
@@ -1932,7 +2141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1969,7 +2179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2006,7 +2217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2040,7 +2252,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2077,7 +2290,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2114,7 +2328,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2151,7 +2366,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2188,7 +2404,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/EncodedAudioChunk.json b/api/EncodedAudioChunk.json
index c4831222f19e8e..00197e78256ff6 100644
--- a/api/EncodedAudioChunk.json
+++ b/api/EncodedAudioChunk.json
@@ -14,9 +14,11 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
+            "version_added": "130"
+          },
+          "firefox_android": {
             "version_added": false
           },
-          "firefox_android": "mirror",
           "ie": {
             "version_added": false
           },
@@ -28,17 +30,18 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
       },
       "EncodedAudioChunk": {
         "__compat": {
-          "description": "<code>EncodedAudioChunk()</code> constructor",
+          "description": "`EncodedAudioChunk()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EncodedAudioChunk/EncodedAudioChunk",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-encodedaudiochunk-encodedaudiochunk",
           "tags": [
@@ -51,9 +54,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -65,10 +70,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -88,9 +94,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -102,10 +110,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -125,9 +134,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -139,10 +150,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -162,9 +174,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -176,10 +190,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -199,9 +214,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -213,10 +230,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -236,9 +254,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
+              "version_added": "130"
+            },
+            "firefox_android": {
               "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -250,10 +270,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/EncodedVideoChunk.json b/api/EncodedVideoChunk.json
index cecbf8e7e2a151..49a505f21f3c77 100644
--- a/api/EncodedVideoChunk.json
+++ b/api/EncodedVideoChunk.json
@@ -14,11 +14,11 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": "preview",
-            "partial_implementation": true,
-            "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+            "version_added": "130"
+          },
+          "firefox_android": {
+            "version_added": false
           },
-          "firefox_android": "mirror",
           "ie": {
             "version_added": false
           },
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,7 @@
       },
       "EncodedVideoChunk": {
         "__compat": {
-          "description": "<code>EncodedVideoChunk()</code> constructor",
+          "description": "`EncodedVideoChunk()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EncodedVideoChunk/EncodedVideoChunk",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-encodedvideochunk-encodedvideochunk",
           "tags": [
@@ -53,11 +54,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,11 +94,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,11 +134,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -147,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -170,11 +174,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -186,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -209,11 +214,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -225,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -248,11 +254,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -264,7 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/EntrySync.json b/api/EntrySync.json
index d06eae16c89cd7..a318d0171938dc 100644
--- a/api/EntrySync.json
+++ b/api/EntrySync.json
@@ -31,7 +31,8 @@
           "webview_android": {
             "prefix": "webkit",
             "version_added": "37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/ErrorEvent.json b/api/ErrorEvent.json
index 74fb480c5987b9..774c334c2bd98a 100644
--- a/api/ErrorEvent.json
+++ b/api/ErrorEvent.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,7 +45,8 @@
       },
       "ErrorEvent": {
         "__compat": {
-          "description": "<code>ErrorEvent()</code> constructor",
+          "description": "`ErrorEvent()` constructor",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ErrorEvent/ErrorEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#errorevent",
           "support": {
             "chrome": {
@@ -72,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +86,7 @@
       },
       "colno": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ErrorEvent/colno",
           "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-colno",
           "support": {
             "chrome": {
@@ -110,7 +114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -121,6 +126,7 @@
       },
       "error": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ErrorEvent/error",
           "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-error",
           "support": {
             "chrome": {
@@ -148,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +166,7 @@
       },
       "filename": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ErrorEvent/filename",
           "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-filename",
           "support": {
             "chrome": {
@@ -190,7 +198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,6 +210,7 @@
       },
       "lineno": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ErrorEvent/lineno",
           "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-lineno",
           "support": {
             "chrome": {
@@ -232,7 +242,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -243,6 +254,7 @@
       },
       "message": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ErrorEvent/message",
           "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-message",
           "support": {
             "chrome": {
@@ -274,7 +286,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Event.json b/api/Event.json
index fdfe55e13f17c1..95b81da8021857 100644
--- a/api/Event.json
+++ b/api/Event.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event",
         "spec_url": "https://dom.spec.whatwg.org/#interface-event",
+        "tags": [
+          "web-features:events"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -22,9 +25,17 @@
           "ie": {
             "version_added": "6"
           },
-          "nodejs": {
-            "version_added": "14.5.0"
-          },
+          "nodejs": [
+            {
+              "version_added": "15.0.0"
+            },
+            {
+              "version_added": "14.5.0",
+              "version_removed": "15.0.0",
+              "partial_implementation": true,
+              "notes": "Only available as an internal instance."
+            }
+          ],
           "oculus": "mirror",
           "opera": {
             "version_added": "4"
@@ -39,7 +50,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,9 +61,12 @@
       },
       "Event": {
         "__compat": {
-          "description": "<code>Event()</code> constructor",
+          "description": "`Event()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/Event",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-event",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "15"
@@ -70,17 +85,9 @@
             "ie": {
               "version_added": false
             },
-            "nodejs": [
-              {
-                "version_added": "15.0.0"
-              },
-              {
-                "version_added": "14.5.0",
-                "version_removed": "15.0.0",
-                "partial_implementation": true,
-                "notes": "Only available from the <code>events</code> module"
-              }
-            ],
+            "nodejs": {
+              "version_added": "14.5.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "11.6"
@@ -93,7 +100,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,6 +114,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/bubbles",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-bubbles③",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -142,7 +153,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,6 +167,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/cancelable",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-cancelable②",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -190,7 +205,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +222,7 @@
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per <a href='https://github.com/whatwg/dom/issues/211'>spec discussion</a>."
+              "notes": "Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per [spec discussion](https://github.com/whatwg/dom/issues/211)."
             },
             "chrome_android": "mirror",
             "deno": {
@@ -223,7 +239,7 @@
                 "version_added": "1",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/UIEvent'><code>UIEvent</code></a>, not all <code>Event</code> objects."
+                "notes": "Only supported for [`UIEvent`](https://developer.mozilla.org/docs/Web/API/UIEvent), not all `Event` objects."
               }
             ],
             "firefox_android": "mirror",
@@ -237,11 +253,11 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1",
-              "notes": "Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per <a href='https://github.com/whatwg/dom/issues/211'>spec discussion</a>."
+              "notes": "Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per [spec discussion](https://github.com/whatwg/dom/issues/211)."
             },
             "opera_android": {
               "version_added": "≤12.1",
-              "notes": "Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per <a href='https://github.com/whatwg/dom/issues/211'>spec discussion</a>."
+              "notes": "Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per [spec discussion](https://github.com/whatwg/dom/issues/211)."
             },
             "safari": {
               "version_added": "1"
@@ -250,8 +266,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37",
-              "notes": "Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per <a href='https://github.com/whatwg/dom/issues/211'>spec discussion</a>."
-            }
+              "notes": "Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per [spec discussion](https://github.com/whatwg/dom/issues/211)."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -278,7 +295,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "52",
-              "notes": "Before Firefox 95, this property was incorrectly set to <code>false</code> on <code>&lt;select&gt;</code> and <code>&lt;input type='checkbox'&gt;</code> elements."
+              "notes": "Before Firefox 95, this property was incorrectly set to `false` on `&lt;select&gt;` and `&lt;input type='checkbox'&gt;` elements."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -296,7 +313,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -337,7 +355,10 @@
             },
             "nodejs": {
               "version_added": "14.5.0",
-              "notes": "Returns an array with either the event itself or no contents."
+              "notes": [
+                "Returns an array with either the event itself or empty.",
+                "This is not used in Node.js and is provided purely for completeness."
+              ]
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -347,7 +368,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,6 +382,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/currentTarget",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-currenttarget②",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -383,7 +408,7 @@
                 "version_added": "6",
                 "version_removed": "9",
                 "partial_implementation": true,
-                "notes": "On Internet Explorer 6 through 8, the event model is different. Event listeners are attached with the non-standard <a href='https://developer.mozilla.org/docs/Web/API/EventTarget/attachEvent'><code>EventTarget.attachEvent</code></a> method. In this model, there is no equivalent to <code>event.currentTarget</code> and <code>this</code> is the global object. One solution to emulate the <code>event.currentTarget</code> feature is to wrap your handler in a function calling the handler using <code>Function.prototype.call</code> with the element as a first argument. This way, <code>this</code> will be the expected value."
+                "notes": "On Internet Explorer 6 through 8, the event model is different. Event listeners are attached with the non-standard [`EventTarget.attachEvent`](https://developer.mozilla.org/docs/Web/API/EventTarget/attachEvent) method. In this model, there is no equivalent to `event.currentTarget` and `this` is the global object. One solution to emulate the `event.currentTarget` feature is to wrap your handler in a function calling the handler using `Function.prototype.call` with the element as a first argument. This way, `this` will be the expected value."
               }
             ],
             "nodejs": {
@@ -401,7 +426,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -414,6 +440,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/defaultPrevented",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-defaultprevented①",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -451,7 +480,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -464,6 +494,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/eventPhase",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-eventphase③",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -497,7 +530,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -536,7 +570,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -592,7 +627,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -605,6 +641,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/isTrusted",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-istrusted①",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "46",
@@ -623,11 +662,10 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "In Internet Explorer, all events are trusted except those that are created with the <code>createEvent()</code> method."
+              "notes": "In Internet Explorer, all events are trusted except those that are created with the `createEvent()` method."
             },
             "nodejs": {
-              "version_added": "14.5.0",
-              "notes": "This is not used in Node.js and is provided purely for completeness."
+              "version_added": "14.5.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -646,7 +684,8 @@
             "webview_android": {
               "version_added": "46",
               "notes": "Starting with version 53, untrusted events do not invoke the default action."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -685,7 +724,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -698,6 +738,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/preventDefault",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-preventdefault③",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -731,7 +774,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -781,7 +825,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -829,7 +874,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -842,6 +888,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/stopImmediatePropagation",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-stopimmediatepropagation①",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -879,7 +928,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -892,6 +942,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/stopPropagation",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-stoppropagation①",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -926,7 +979,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -939,6 +993,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/target",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-target③",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -972,7 +1029,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -985,27 +1043,30 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/timeStamp",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-timestamp①",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns <a href='https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp'><code>DOMHighResTimeStamp</code></a> instead of <a href='https://developer.mozilla.org/docs/Web/API/DOMTimeStamp'><code>DOMTimeStamp</code></a>."
+              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns [`DOMHighResTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp) instead of [`DOMTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMTimeStamp)."
             },
             "chrome_android": "mirror",
             "deno": {
               "version_added": "1.0",
-              "notes": "In Deno this represents the time since UNIX epoch, not since startup. This is considered a bug, see <a href='https://github.com/denoland/deno/issues/10835'>#10835</a>."
+              "notes": "In Deno this represents the time since UNIX epoch, not since startup. This is considered a bug, see [#10835](https://github.com/denoland/deno/issues/10835)."
             },
             "edge": {
               "version_added": "12"
             },
             "firefox": {
               "version_added": "1.5",
-              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns <a href='https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp'><code>DOMHighResTimeStamp</code></a> instead of <a href='https://developer.mozilla.org/docs/Web/API/DOMTimeStamp'><code>DOMTimeStamp</code></a>."
+              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns [`DOMHighResTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp) instead of [`DOMTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMTimeStamp)."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns <a href='https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp'><code>DOMHighResTimeStamp</code></a> instead of <a href='https://developer.mozilla.org/docs/Web/API/DOMTimeStamp'><code>DOMTimeStamp</code></a>."
+              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns [`DOMHighResTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp) instead of [`DOMTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMTimeStamp)."
             },
             "nodejs": {
               "version_added": "14.5.0"
@@ -1013,11 +1074,11 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1",
-              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns <a href='https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp'><code>DOMHighResTimeStamp</code></a> instead of <a href='https://developer.mozilla.org/docs/Web/API/DOMTimeStamp'><code>DOMTimeStamp</code></a>."
+              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns [`DOMHighResTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp) instead of [`DOMTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMTimeStamp)."
             },
             "opera_android": {
               "version_added": "≤12.1",
-              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns <a href='https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp'><code>DOMHighResTimeStamp</code></a> instead of <a href='https://developer.mozilla.org/docs/Web/API/DOMTimeStamp'><code>DOMTimeStamp</code></a>."
+              "notes": "Starting with Chrome 49, Firefox 54 and Opera 36, this property returns [`DOMHighResTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp) instead of [`DOMTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMTimeStamp)."
             },
             "safari": {
               "version_added": "1"
@@ -1026,8 +1087,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1",
-              "notes": "Starting with version 49, this property returns <a href='https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp'><code>DOMHighResTimeStamp</code></a> instead of <a href='https://developer.mozilla.org/docs/Web/API/DOMTimeStamp'><code>DOMTimeStamp</code></a>."
-            }
+              "notes": "Starting with version 49, this property returns [`DOMHighResTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMHighResTimeStamp) instead of [`DOMTimeStamp`](https://developer.mozilla.org/docs/Web/API/DOMTimeStamp)."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1040,6 +1102,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Event/type",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-event-type④",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1073,7 +1138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/EventCounts.json b/api/EventCounts.json
index e8de9b57366874..34335da1c09971 100644
--- a/api/EventCounts.json
+++ b/api/EventCounts.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventCounts",
         "spec_url": "https://w3c.github.io/event-timing/#sec-event-counts",
+        "tags": [
+          "web-features:event-timing"
+        ],
         "support": {
           "chrome": {
             "version_added": "85"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,6 +39,9 @@
       },
       "entries": {
         "__compat": {
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -56,7 +63,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -67,6 +75,9 @@
       },
       "forEach": {
         "__compat": {
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -88,7 +99,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,6 +111,9 @@
       },
       "get": {
         "__compat": {
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -120,7 +135,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,6 +147,9 @@
       },
       "has": {
         "__compat": {
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -152,7 +171,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +183,9 @@
       },
       "keys": {
         "__compat": {
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -184,7 +207,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,6 +219,9 @@
       },
       "size": {
         "__compat": {
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -216,7 +243,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -227,6 +255,9 @@
       },
       "values": {
         "__compat": {
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -248,7 +279,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -260,6 +292,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -281,7 +316,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/EventSource.json b/api/EventSource.json
index e5c68ac1491b8e..f49528ae598aec 100644
--- a/api/EventSource.json
+++ b/api/EventSource.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventSource",
         "spec_url": "https://html.spec.whatwg.org/multipage/server-sent-events.html#the-eventsource-interface",
+        "tags": [
+          "web-features:server-sent-events"
+        ],
         "support": {
           "chrome": {
             "version_added": "6"
@@ -36,7 +39,8 @@
             "version_added": "5"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,9 +50,12 @@
       },
       "EventSource": {
         "__compat": {
-          "description": "<code>EventSource()</code> constructor",
+          "description": "`EventSource()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventSource/EventSource",
           "spec_url": "https://html.spec.whatwg.org/multipage/server-sent-events.html#dom-eventsource-dev",
+          "tags": [
+            "web-features:server-sent-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -81,7 +88,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,7 +99,7 @@
         },
         "options_withCredentials_parameter": {
           "__compat": {
-            "description": "<code>options.withCredentials</code> parameter",
+            "description": "`options.withCredentials` parameter",
             "support": {
               "chrome": {
                 "version_added": "26"
@@ -124,7 +132,8 @@
               "samsunginternet_android": {
                 "version_added": "2.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -146,9 +155,17 @@
               "version_added": "1.38"
             },
             "edge": "mirror",
-            "firefox": {
-              "version_added": "53"
-            },
+            "firefox": [
+              {
+                "version_added": "133"
+              },
+              {
+                "version_added": "53",
+                "version_removed": "133",
+                "partial_implementation": true,
+                "notes": "Not supported in service workers."
+              }
+            ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
@@ -169,7 +186,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -182,6 +200,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventSource/close",
           "spec_url": "https://html.spec.whatwg.org/multipage/server-sent-events.html#dom-eventsource-close-dev",
+          "tags": [
+            "web-features:server-sent-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -214,7 +235,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -225,12 +247,15 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventSource/error_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-error",
             "https://html.spec.whatwg.org/multipage/server-sent-events.html#handler-eventsource-onerror"
           ],
+          "tags": [
+            "web-features:server-sent-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -263,7 +288,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,12 +300,15 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventSource/message_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-message",
             "https://html.spec.whatwg.org/multipage/server-sent-events.html#handler-eventsource-onmessage"
           ],
+          "tags": [
+            "web-features:server-sent-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -312,7 +341,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -323,12 +353,15 @@
       },
       "open_event": {
         "__compat": {
-          "description": "<code>open</code> event",
+          "description": "`open` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventSource/open_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-open",
             "https://html.spec.whatwg.org/multipage/server-sent-events.html#handler-eventsource-onopen"
           ],
+          "tags": [
+            "web-features:server-sent-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -361,7 +394,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -374,6 +408,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventSource/readyState",
           "spec_url": "https://html.spec.whatwg.org/multipage/server-sent-events.html#dom-eventsource-readystate-dev",
+          "tags": [
+            "web-features:server-sent-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -406,7 +443,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -419,6 +457,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventSource/url",
           "spec_url": "https://html.spec.whatwg.org/multipage/server-sent-events.html#dom-eventsource-url-dev",
+          "tags": [
+            "web-features:server-sent-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "18"
@@ -449,7 +490,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -462,6 +504,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventSource/withCredentials",
           "spec_url": "https://html.spec.whatwg.org/multipage/server-sent-events.html#dom-eventsource-withcredentials-dev",
+          "tags": [
+            "web-features:server-sent-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "26"
@@ -492,7 +537,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/EventTarget.json b/api/EventTarget.json
index 9a089d30db4e52..2d156047f9873e 100644
--- a/api/EventTarget.json
+++ b/api/EventTarget.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventTarget",
         "spec_url": "https://dom.spec.whatwg.org/#interface-eventtarget",
+        "tags": [
+          "web-features:events"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -22,9 +25,17 @@
           "ie": {
             "version_added": "6"
           },
-          "nodejs": {
-            "version_added": "14.5.0"
-          },
+          "nodejs": [
+            {
+              "version_added": "15.0.0"
+            },
+            {
+              "version_added": "14.5.0",
+              "version_removed": "15.0.0",
+              "partial_implementation": true,
+              "notes": "Only available as an internal instance."
+            }
+          ],
           "oculus": "mirror",
           "opera": {
             "version_added": "7"
@@ -34,16 +45,17 @@
           },
           "safari": {
             "version_added": "1",
-            "notes": "<code>window.EventTarget</code> did not exist on versions of Safari before 10.1."
+            "notes": "`window.EventTarget` did not exist on versions of Safari before 10.1."
           },
           "safari_ios": {
             "version_added": "1",
-            "notes": "<code>window.EventTarget</code> did not exist on versions of Safari iOS before 10.3."
+            "notes": "`window.EventTarget` did not exist on versions of Safari iOS before 10.3."
           },
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -53,9 +65,12 @@
       },
       "EventTarget": {
         "__compat": {
-          "description": "<code>EventTarget()</code> constructor",
+          "description": "`EventTarget()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventTarget/EventTarget",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-eventtarget-eventtarget①",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -72,17 +87,9 @@
             "ie": {
               "version_added": false
             },
-            "nodejs": [
-              {
-                "version_added": "15.0.0"
-              },
-              {
-                "version_added": "14.5.0",
-                "version_removed": "15.0.0",
-                "partial_implementation": true,
-                "notes": "Only available from the <code>events</code> module"
-              }
-            ],
+            "nodejs": {
+              "version_added": "14.5.0"
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -91,7 +98,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,10 +112,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventTarget/addEventListener",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-eventtarget-addeventlistener③",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Before Chrome 49, the <code>type</code> and <code>listener</code> parameters were optional."
+              "notes": "Before Chrome 49, the `type` and `listener` parameters were optional."
             },
             "chrome_android": "mirror",
             "deno": {
@@ -128,7 +139,7 @@
                 "alternative_name": "attachEvent",
                 "version_added": "6",
                 "version_removed": "11",
-                "notes": "Older versions of IE supported an equivalent, proprietary <code>EventTarget.attachEvent()</code> method."
+                "notes": "Older versions of IE supported an equivalent, proprietary `EventTarget.attachEvent()` method."
               }
             ],
             "nodejs": {
@@ -148,8 +159,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1",
-              "notes": "Before Chrome 49, the <code>type</code> and <code>listener</code> parameters were optional."
-            }
+              "notes": "Before Chrome 49, the `type` and `listener` parameters were optional."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,7 +171,10 @@
         },
         "options_parameter": {
           "__compat": {
-            "description": "Form with <code>options</code> object supported (third parameter can be either options or a <code>Boolean</code>, for backwards compatibility)",
+            "description": "Form with `options` object supported (third parameter can be either options or a `Boolean`, for backwards compatibility)",
+            "tags": [
+              "web-features:events"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -189,7 +204,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -199,8 +215,11 @@
           },
           "options_capture_parameter": {
             "__compat": {
-              "description": "<code>options.capture</code> parameter",
+              "description": "`options.capture` parameter",
               "spec_url": "https://dom.spec.whatwg.org/#dom-eventlisteneroptions-capture",
+              "tags": [
+                "web-features:events"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "52"
@@ -230,7 +249,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -241,8 +261,11 @@
           },
           "options_once_parameter": {
             "__compat": {
-              "description": "<code>options.once</code> parameter",
+              "description": "`options.once` parameter",
               "spec_url": "https://dom.spec.whatwg.org/#dom-addeventlisteneroptions-once",
+              "tags": [
+                "web-features:events"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "55"
@@ -272,7 +295,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -283,8 +307,11 @@
           },
           "options_passive_parameter": {
             "__compat": {
-              "description": "<code>options.passive</code> parameter",
+              "description": "`options.passive` parameter",
               "spec_url": "https://dom.spec.whatwg.org/#dom-addeventlisteneroptions-passive",
+              "tags": [
+                "web-features:events"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -314,7 +341,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -325,7 +353,10 @@
           },
           "options_passive_parameter_default_true_touch": {
             "__compat": {
-              "description": "<code>options.passive</code> parameter defaults to <code>true</code> for <code>touchstart</code> and <code>touchmove</code> events",
+              "description": "`options.passive` parameter defaults to `true` for `touchstart` and `touchmove` events",
+              "tags": [
+                "web-features:events"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "55"
@@ -347,7 +378,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -358,14 +390,17 @@
           },
           "options_passive_parameter_default_true_wheel": {
             "__compat": {
-              "description": "<code>options.passive</code> parameter defaults to <code>true</code> for <code>wheel</code> and <code>mousewheel</code> events",
+              "description": "`options.passive` parameter defaults to `true` for `wheel` and `mousewheel` events",
+              "tags": [
+                "web-features:events"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "73"
                 },
                 "chrome_android": "mirror",
                 "deno": {
-                  "version_added": null
+                  "version_added": false
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -386,7 +421,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -397,8 +433,11 @@
           },
           "options_signal_parameter": {
             "__compat": {
-              "description": "<code>options.signal</code> parameter",
+              "description": "`options.signal` parameter",
               "spec_url": "https://dom.spec.whatwg.org/#dom-addeventlisteneroptions-signal",
+              "tags": [
+                "web-features:events"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "90"
@@ -426,7 +465,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -438,7 +478,10 @@
         },
         "useCapture_parameter_optional": {
           "__compat": {
-            "description": "<code>useCapture</code> parameter is optional",
+            "description": "`useCapture` parameter is optional",
+            "tags": [
+              "web-features:events"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -472,7 +515,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -486,6 +530,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventTarget/dispatchEvent",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-eventtarget-dispatchevent③",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -509,7 +556,7 @@
                 "alternative_name": "fireEvent",
                 "version_added": "6",
                 "version_removed": "11",
-                "notes": "Older versions of IE supported an equivalent, proprietary <code>EventTarget.fireEvent()</code> method."
+                "notes": "Older versions of IE supported an equivalent, proprietary `EventTarget.fireEvent()` method."
               }
             ],
             "nodejs": {
@@ -531,7 +578,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -544,6 +592,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EventTarget/removeEventListener",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-eventtarget-removeeventlistener②",
+          "tags": [
+            "web-features:events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -567,7 +618,7 @@
                 "alternative_name": "detachEvent",
                 "version_added": "6",
                 "version_removed": "11",
-                "notes": "Older versions of IE supported an equivalent, proprietary <code>EventTarget.detachEvent()</code> method."
+                "notes": "Older versions of IE supported an equivalent, proprietary `EventTarget.detachEvent()` method."
               }
             ],
             "nodejs": {
@@ -585,7 +636,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -595,7 +647,10 @@
         },
         "options_parameter": {
           "__compat": {
-            "description": "Form with <code>options</code> object supported (third parameter can be either options or a <code>Boolean</code>, for backwards compatibility)",
+            "description": "Form with `options` object supported (third parameter can be either options or a `Boolean`, for backwards compatibility)",
+            "tags": [
+              "web-features:events"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -625,7 +680,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -636,7 +692,10 @@
         },
         "useCapture_parameter_optional": {
           "__compat": {
-            "description": "<code>useCapture</code> parameter is optional",
+            "description": "`useCapture` parameter is optional",
+            "tags": [
+              "web-features:events"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -670,7 +729,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/api/ExtendableCookieChangeEvent.json b/api/ExtendableCookieChangeEvent.json
index 0cf80d72737b9c..4ee517f06da9b7 100644
--- a/api/ExtendableCookieChangeEvent.json
+++ b/api/ExtendableCookieChangeEvent.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "ExtendableCookieChangeEvent": {
         "__compat": {
-          "description": "<code>ExtendableCookieChangeEvent()</code> constructor",
+          "description": "`ExtendableCookieChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ExtendableCookieChangeEvent/ExtendableCookieChangeEvent",
           "spec_url": "https://wicg.github.io/cookie-store/#dom-extendablecookiechangeevent-extendablecookiechangeevent",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +106,7 @@
         },
         "partitioned_property": {
           "__compat": {
-            "description": "<code>partitioned</code> property",
+            "description": "`partitioned` property",
             "spec_url": "https://wicg.github.io/cookie-store/#dom-cookielistitem-partitioned",
             "support": {
               "chrome": {
@@ -126,7 +129,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -161,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,7 +176,7 @@
         },
         "partitioned_property": {
           "__compat": {
-            "description": "<code>partitioned</code> property",
+            "description": "`partitioned` property",
             "spec_url": "https://wicg.github.io/cookie-store/#dom-cookielistitem-partitioned",
             "support": {
               "chrome": {
@@ -194,7 +199,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/ExtendableEvent.json b/api/ExtendableEvent.json
index 0ecd90c3aea335..ebb90ca5722087 100644
--- a/api/ExtendableEvent.json
+++ b/api/ExtendableEvent.json
@@ -31,7 +31,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -41,7 +44,7 @@
       },
       "ExtendableEvent": {
         "__compat": {
-          "description": "<code>ExtendableEvent()</code> constructor",
+          "description": "`ExtendableEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ExtendableEvent/ExtendableEvent",
           "spec_url": "https://w3c.github.io/ServiceWorker/#dom-extendableevent-extendableevent",
           "support": {
@@ -71,7 +74,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -111,7 +117,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -121,7 +130,7 @@
         },
         "async_waitUntil": {
           "__compat": {
-            "description": "<code>waitUntil</code> may be called asynchronously",
+            "description": "`waitUntil` may be called asynchronously",
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -145,7 +154,10 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
diff --git a/api/ExtendableMessageEvent.json b/api/ExtendableMessageEvent.json
index 24c5c81c63c88d..f55851411b12c2 100644
--- a/api/ExtendableMessageEvent.json
+++ b/api/ExtendableMessageEvent.json
@@ -27,7 +27,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -37,7 +40,7 @@
       },
       "ExtendableMessageEvent": {
         "__compat": {
-          "description": "<code>ExtendableMessageEvent()</code> constructor",
+          "description": "`ExtendableMessageEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ExtendableMessageEvent/ExtendableMessageEvent",
           "spec_url": "https://w3c.github.io/ServiceWorker/#dom-extendablemessageevent-extendablemessageevent",
           "support": {
@@ -63,7 +66,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -99,7 +105,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -135,7 +144,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -171,7 +183,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -207,7 +222,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -243,7 +261,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/External.json b/api/External.json
index d086fb8fcfaf56..9c3f1291ee4e65 100644
--- a/api/External.json
+++ b/api/External.json
@@ -28,7 +28,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -67,7 +68,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +106,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/EyeDropper.json b/api/EyeDropper.json
index a2327ab8ff5ae6..fd2c9bfbe5f0ec 100644
--- a/api/EyeDropper.json
+++ b/api/EyeDropper.json
@@ -32,7 +32,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": {
+            "version_added": false,
+            "impl_url": "https://crbug.com/40791573"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -42,7 +46,7 @@
       },
       "EyeDropper": {
         "__compat": {
-          "description": "<code>EyeDropper()</code> constructor",
+          "description": "`EyeDropper()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/EyeDropper/EyeDropper",
           "spec_url": "https://wicg.github.io/eyedropper-api/#eyedropper-interface",
           "tags": [
@@ -73,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -85,6 +90,9 @@
       "secure_context_required": {
         "__compat": {
           "description": "Secure context required",
+          "tags": [
+            "web-features:eyedropper"
+          ],
           "support": {
             "chrome": {
               "version_added": "96"
@@ -110,7 +118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -151,7 +160,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/FeaturePolicy.json b/api/FeaturePolicy.json
index f4a66cee8ee6db..6b9ea47394ad11 100644
--- a/api/FeaturePolicy.json
+++ b/api/FeaturePolicy.json
@@ -32,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,7 +113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -151,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -191,7 +195,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/FederatedCredential.json b/api/FederatedCredential.json
index f2f4592a10b42d..efc8abc8aacaa4 100644
--- a/api/FederatedCredential.json
+++ b/api/FederatedCredential.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/FederatedCredential",
         "spec_url": "https://w3c.github.io/webappsec-credential-management/#federated",
+        "tags": [
+          "web-features:federated-credentials"
+        ],
         "support": {
           "chrome": {
             "version_added": "51"
@@ -11,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1156047"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -21,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/172014"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -35,9 +41,12 @@
       },
       "FederatedCredential": {
         "__compat": {
-          "description": "<code>FederatedCredential()</code> constructor",
+          "description": "`FederatedCredential()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FederatedCredential/FederatedCredential",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-federatedcredential-federatedcredential",
+          "tags": [
+            "web-features:federated-credentials"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -59,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -70,6 +80,9 @@
       },
       "iconURL": {
         "__compat": {
+          "tags": [
+            "web-features:federated-credentials"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -93,7 +106,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -104,6 +118,9 @@
       },
       "name": {
         "__compat": {
+          "tags": [
+            "web-features:federated-credentials"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -127,7 +144,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -140,6 +158,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FederatedCredential/protocol",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-federatedcredential-protocol",
+          "tags": [
+            "web-features:federated-credentials"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -161,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -174,6 +196,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FederatedCredential/provider",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-federatedcredential-provider",
+          "tags": [
+            "web-features:federated-credentials"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -195,7 +220,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Fence.json b/api/Fence.json
index 77a517bf5c287e..786ad2a994f839 100644
--- a/api/Fence.json
+++ b/api/Fence.json
@@ -4,9 +4,12 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Fence",
         "spec_url": "https://wicg.github.io/fenced-frame/#fence-interface",
+        "tags": [
+          "web-features:fencedframe"
+        ],
         "support": {
           "chrome": {
-            "version_added": "117"
+            "version_added": "115"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +41,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Fence/getNestedConfigs",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-fence-getnestedconfigs",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,9 +79,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Fence/reportEvent",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-fence-reportevent",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,9 +117,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Fence/setReportEventDataForAutomaticBeacons",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-fence-setreporteventdataforautomaticbeacons",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -136,11 +152,14 @@
         },
         "start_commit_eventType": {
           "__compat": {
-            "description": "Separate <code>reserved.top_navigation_start</code> and <code>reserved.top_navigation_commit</code> <code>eventType</code> values",
+            "description": "Separate `reserved.top_navigation_start` and `reserved.top_navigation_commit` `eventType` values",
+            "tags": [
+              "web-features:fencedframe"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120",
-                "notes": "Previously only a single <code>eventType</code> was available, <code>reserved.top_navigation</code>, but this has been replaced by the new values."
+                "notes": "Previously only a single `eventType` was available, `reserved.top_navigation`, but this has been replaced by the new values."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -159,7 +178,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/FencedFrameConfig.json b/api/FencedFrameConfig.json
index 96387855666926..ba31bf54dd01cd 100644
--- a/api/FencedFrameConfig.json
+++ b/api/FencedFrameConfig.json
@@ -4,9 +4,12 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/FencedFrameConfig",
         "spec_url": "https://wicg.github.io/fenced-frame/#fenced-frame-config-interface",
+        "tags": [
+          "web-features:fencedframe"
+        ],
         "support": {
           "chrome": {
-            "version_added": "117"
+            "version_added": "115"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +41,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FencedFrameConfig/setSharedStorageContext",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-fencedframeconfig-setsharedstoragecontext",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/FetchEvent.json b/api/FetchEvent.json
index 9b99cf290e5467..43b4a82d100356 100644
--- a/api/FetchEvent.json
+++ b/api/FetchEvent.json
@@ -27,7 +27,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -37,7 +40,7 @@
       },
       "FetchEvent": {
         "__compat": {
-          "description": "<code>FetchEvent()</code> constructor",
+          "description": "`FetchEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FetchEvent/FetchEvent",
           "spec_url": "https://w3c.github.io/ServiceWorker/#dom-fetchevent-fetchevent",
           "support": {
@@ -63,7 +66,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -99,7 +105,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -133,7 +142,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -148,7 +160,7 @@
           "support": {
             "chrome": {
               "version_added": "40",
-              "notes": "May be removed in a future release, see <a href='https://crbug.com/652994'>bug 652994</a>."
+              "notes": "May be removed in a future release, see [bug 40487736](https://crbug.com/40487736)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -178,7 +190,8 @@
             },
             "webview_android": {
               "version_added": "40"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,44 +227,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "replacesClientId": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/FetchEvent/replacesClientId",
-          "spec_url": "https://w3c.github.io/ServiceWorker/#fetch-event-replacesClientId",
-          "support": {
-            "chrome": {
+            "webview_android": "mirror",
+            "webview_ios": {
               "version_added": false
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "alternative_name": "targetClientId",
-              "version_added": "11.1",
-              "version_removed": "16",
-              "impl_url": "https://webkit.org/b/226638"
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            }
           },
           "status": {
             "experimental": false,
@@ -287,7 +266,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -323,7 +305,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -333,7 +318,7 @@
         },
         "networkerror_on_same-origin_cors": {
           "__compat": {
-            "description": "<code>NetworkError</code> thrown if the request mode is <code>same-origin</code> and the response type is <code>cors</code>",
+            "description": "`NetworkError` thrown if the request mode is `same-origin` and the response type is `cors`",
             "support": {
               "chrome": {
                 "version_added": "66"
@@ -355,7 +340,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -388,7 +374,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -425,7 +412,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/File.json b/api/File.json
index 0de6bc5e55c54e..bb891020a12a6e 100644
--- a/api/File.json
+++ b/api/File.json
@@ -29,6 +29,23 @@
           "ie": {
             "version_added": "10"
           },
+          "nodejs": [
+            {
+              "version_added": "20.0.0",
+              "notes": "Before 23.0.0, `File` instance cannot be cloned."
+            },
+            {
+              "version_added": "19.2.0",
+              "partial_implementation": true,
+              "notes": "Available as a part of the `buffer` module."
+            },
+            {
+              "version_added": "18.13.0",
+              "version_removed": "19.0.0",
+              "partial_implementation": true,
+              "notes": "Available as a part of the `buffer` module."
+            }
+          ],
           "oculus": "mirror",
           "opera": {
             "version_added": "11.5"
@@ -43,7 +60,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -53,7 +71,7 @@
       },
       "File": {
         "__compat": {
-          "description": "<code>File()</code> constructor",
+          "description": "`File()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/File/File",
           "spec_url": "https://w3c.github.io/FileAPI/#file-constructor",
           "support": {
@@ -72,6 +90,15 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": [
+              {
+                "version_added": "19.2.0"
+              },
+              {
+                "version_added": "18.13.0",
+                "version_removed": "19.0.0"
+              }
+            ],
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -80,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,6 +139,15 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": [
+              {
+                "version_added": "19.2.0"
+              },
+              {
+                "version_added": "18.13.0",
+                "version_removed": "19.0.0"
+              }
+            ],
             "oculus": "mirror",
             "opera": {
               "version_added": "≤15"
@@ -125,7 +162,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,7 +211,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -204,6 +243,15 @@
             "ie": {
               "version_added": "10"
             },
+            "nodejs": [
+              {
+                "version_added": "19.2.0"
+              },
+              {
+                "version_added": "18.13.0",
+                "version_removed": "19.0.0"
+              }
+            ],
             "oculus": "mirror",
             "opera": {
               "version_added": "≤15"
@@ -218,7 +266,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,7 +310,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileEntrySync.json b/api/FileEntrySync.json
index 523c14eab38845..a306226559cca3 100644
--- a/api/FileEntrySync.json
+++ b/api/FileEntrySync.json
@@ -32,7 +32,8 @@
           "webview_android": {
             "prefix": "webkit",
             "version_added": "37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/FileList.json b/api/FileList.json
index e67bcb3abe23cc..c39a7f4e5acd1d 100644
--- a/api/FileList.json
+++ b/api/FileList.json
@@ -39,7 +39,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -83,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +130,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileReader.json b/api/FileReader.json
index f60d95980bd38e..495d329b6a3f5c 100644
--- a/api/FileReader.json
+++ b/api/FileReader.json
@@ -17,7 +17,7 @@
           },
           "firefox": {
             "version_added": "3.6",
-            "notes": "Before Firefox 4, <code>Blob</code> parameters were <code>File</code> parameters."
+            "notes": "Before Firefox 4, `Blob` parameters were `File` parameters."
           },
           "firefox_android": {
             "version_added": "32"
@@ -39,7 +39,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,7 +50,7 @@
       },
       "FileReader": {
         "__compat": {
-          "description": "<code>FileReader()</code> constructor",
+          "description": "`FileReader()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileReader/FileReader",
           "spec_url": "https://w3c.github.io/FileAPI/#filereaderConstrctr",
           "support": {
@@ -86,7 +87,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,7 +132,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,7 +180,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -188,7 +192,7 @@
       },
       "abort_event": {
         "__compat": {
-          "description": "<code>abort</code> event",
+          "description": "`abort` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileReader/abort_event",
           "spec_url": [
             "https://w3c.github.io/FileAPI/#dfn-abort-event",
@@ -228,7 +232,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -255,21 +260,21 @@
             "firefox": {
               "version_added": "3.6",
               "notes": [
-                "Before Firefox 13, the <code>error</code> property returned a <code>FileError</code> object.",
-                "From Firefox 13 to Firefox 58, the <code>error</code> property returned a <code>DOMError</code> object.",
-                "From Firefox 58, the <code>error</code> property returns a <code>DOMException</code> object."
+                "Before Firefox 13, the `error` property returned a `FileError` object.",
+                "From Firefox 13 to Firefox 58, the `error` property returned a `DOMError` object.",
+                "From Firefox 58, the `error` property returns a `DOMException` object."
               ]
             },
             "firefox_android": {
               "version_added": "32",
               "notes": [
-                "From Firefox 32 to Firefox 58, the <code>error</code> property returned a <code>DOMError</code> object.",
-                "From Firefox 58, the <code>error</code> property returns a <code>DOMException</code> object."
+                "From Firefox 32 to Firefox 58, the `error` property returned a `DOMError` object.",
+                "From Firefox 58, the `error` property returns a `DOMException` object."
               ]
             },
             "ie": {
               "version_added": "10",
-              "notes": "The <code>error</code> property returns a <code>DOMError</code> object."
+              "notes": "The `error` property returns a `DOMError` object."
             },
             "oculus": "mirror",
             "opera": {
@@ -280,13 +285,14 @@
             },
             "safari": {
               "version_added": "6",
-              "notes": "The <code>error</code> property returns a <code>DOMError</code> object."
+              "notes": "The `error` property returns a `DOMError` object."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -297,7 +303,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileReader/error_event",
           "spec_url": [
             "https://w3c.github.io/FileAPI/#dfn-error-event",
@@ -337,7 +343,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -348,7 +355,7 @@
       },
       "load_event": {
         "__compat": {
-          "description": "<code>load</code> event",
+          "description": "`load` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileReader/load_event",
           "spec_url": [
             "https://w3c.github.io/FileAPI/#dfn-load-event",
@@ -388,7 +395,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -399,7 +407,7 @@
       },
       "loadend_event": {
         "__compat": {
-          "description": "<code>loadend</code> event",
+          "description": "`loadend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileReader/loadend_event",
           "spec_url": [
             "https://w3c.github.io/FileAPI/#dfn-loadend-event",
@@ -439,7 +447,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -450,7 +459,7 @@
       },
       "loadstart_event": {
         "__compat": {
-          "description": "<code>loadstart</code> event",
+          "description": "`loadstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileReader/loadstart_event",
           "spec_url": [
             "https://w3c.github.io/FileAPI/#dfn-loadstart-event",
@@ -475,7 +484,7 @@
                 "version_added": "3.6",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "<code>loadstart</code> event dispatches synchronously (should be asynchronously as per spec)."
+                "notes": "`loadstart` event dispatches synchronously (should be asynchronously as per spec)."
               }
             ],
             "firefox_android": [
@@ -486,7 +495,7 @@
                 "version_added": "32",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "<code>loadstart</code> event dispatches synchronously (should be asynchronously as per spec)."
+                "notes": "`loadstart` event dispatches synchronously (should be asynchronously as per spec)."
               }
             ],
             "ie": {
@@ -506,7 +515,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -517,7 +527,7 @@
       },
       "progress_event": {
         "__compat": {
-          "description": "<code>progress</code> event",
+          "description": "`progress` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileReader/progress_event",
           "spec_url": [
             "https://w3c.github.io/FileAPI/#dfn-progress-event",
@@ -557,7 +567,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -604,7 +615,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -651,7 +663,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -680,7 +693,7 @@
             },
             "firefox_android": {
               "version_added": "32",
-              "notes": "Using the camera in Android 8.x raises an exception. See <a href='https://bugzil.la/1511083'>bug 1511083</a>."
+              "notes": "Using the camera in Android 8.x raises an exception. See [bug 1511083](https://bugzil.la/1511083)."
             },
             "ie": {
               "version_added": "10"
@@ -699,7 +712,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -746,7 +760,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -793,7 +808,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -840,7 +856,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileReaderSync.json b/api/FileReaderSync.json
index 51c32bfcf4f92b..d925702c621239 100644
--- a/api/FileReaderSync.json
+++ b/api/FileReaderSync.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,7 +45,7 @@
       },
       "FileReaderSync": {
         "__compat": {
-          "description": "<code>FileReaderSync()</code> constructor",
+          "description": "`FileReaderSync()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileReaderSync/FileReaderSync",
           "spec_url": "https://w3c.github.io/FileAPI/#filereadersyncConstrctr",
           "support": {
@@ -77,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -244,7 +249,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -287,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystem.json b/api/FileSystem.json
index 3beb9872b994ab..8379e0f0b15c74 100644
--- a/api/FileSystem.json
+++ b/api/FileSystem.json
@@ -11,7 +11,7 @@
           "chrome_android": "mirror",
           "edge": {
             "version_added": "≤18",
-            "notes": "Edge only supports this API in drag-and-drop scenarios using the <code><a href='https://developer.mozilla.org/docs/Web/API/DataTransferItem/webkitGetAsEntry'>DataTransferItem.webkitGetAsEntry()</a></code> method. It's not available for use in file or folder picker panels (such as when you use an <code><a href='https://developer.mozilla.org/docs/Web/HTML/Element/input'>&lt;input&gt;</a></code> element with the <code><a href='https://developer.mozilla.org/docs/Web/API/HTMLInputElement/webkitdirectory'>HTMLInputElement.webkitdirectory</a></code> attribute."
+            "notes": "Before Edge 79, this API was only supported in drag-and-drop scenarios using the [`DataTransferItem.webkitGetAsEntry()`](https://developer.mozilla.org/docs/Web/API/DataTransferItem/webkitGetAsEntry) method. It was not available for use in file or folder picker panels (such as when you use an [`&lt;input&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/input) element with the [`HTMLInputElement.webkitdirectory`](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/webkitdirectory) attribute."
           },
           "firefox": {
             "version_added": "50"
@@ -30,7 +30,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -67,7 +68,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,7 +107,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystemDirectoryEntry.json b/api/FileSystemDirectoryEntry.json
index 3f3121e8256cfc..18df3b84e66afa 100644
--- a/api/FileSystemDirectoryEntry.json
+++ b/api/FileSystemDirectoryEntry.json
@@ -27,7 +27,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,7 +87,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "50",
-              "notes": "In Firefox, the <code>errorCallback</code>'s input parameter is a <code><a href='https://developer.mozilla.org/docs/Web/API/DOMException'>DOMException</a></code> rather than a <code><a href='https://developer.mozilla.org/docs/Web/API/FileError'>FileError</a></code> object."
+              "notes": "In Firefox, the `errorCallback`'s input parameter is a [`DOMException`](https://developer.mozilla.org/docs/Web/API/DOMException) rather than a [`FileError`](https://developer.mozilla.org/docs/Web/API/FileError) object."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -103,7 +105,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -124,7 +127,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "50",
-              "notes": "In Firefox, the <code>errorCallback</code>'s input parameter is a <code><a href='https://developer.mozilla.org/docs/Web/API/DOMException'>DOMException</a></code> rather than a <code><a href='https://developer.mozilla.org/docs/Web/API/FileError'>FileError</a></code> object."
+              "notes": "In Firefox, the `errorCallback`'s input parameter is a [`DOMException`](https://developer.mozilla.org/docs/Web/API/DOMException) rather than a [`FileError`](https://developer.mozilla.org/docs/Web/API/FileError) object."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -142,7 +145,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,7 +167,7 @@
             "firefox": {
               "version_added": "50",
               "version_removed": "52",
-              "notes": "While the <code>removeRecursively()</code> method existed, it immediately called the error callback with <code>NS_ERROR_DOM_SECURITY_ERR</code>."
+              "notes": "While the `removeRecursively()` method existed, it immediately called the error callback with `NS_ERROR_DOM_SECURITY_ERR`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -181,7 +185,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystemDirectoryHandle.json b/api/FileSystemDirectoryHandle.json
index af44fe27c2dffd..b964481fb56ce1 100644
--- a/api/FileSystemDirectoryHandle.json
+++ b/api/FileSystemDirectoryHandle.json
@@ -11,7 +11,9 @@
           "chrome": {
             "version_added": "86"
           },
-          "chrome_android": "mirror",
+          "chrome_android": {
+            "version_added": "109"
+          },
           "edge": "mirror",
           "firefox": {
             "version_added": "111"
@@ -28,9 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": {
-            "version_added": false
-          }
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,7 +50,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -66,9 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,7 +90,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -105,9 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,7 +130,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -144,9 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -166,7 +170,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -183,9 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -205,7 +210,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -222,9 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -244,7 +250,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -261,9 +269,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -283,7 +290,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -300,9 +309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,11 +323,16 @@
         "__compat": {
           "description": "[Symbol.asyncIterator]",
           "spec_url": "https://fs.spec.whatwg.org/#api-filesystemdirectoryhandle-asynciterable",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -336,9 +349,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystemDirectoryReader.json b/api/FileSystemDirectoryReader.json
index 19c9bf2ffde54d..31db18d774ecae 100644
--- a/api/FileSystemDirectoryReader.json
+++ b/api/FileSystemDirectoryReader.json
@@ -29,7 +29,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystemEntry.json b/api/FileSystemEntry.json
index 848ca651b1cc0b..15b29c5f26b533 100644
--- a/api/FileSystemEntry.json
+++ b/api/FileSystemEntry.json
@@ -29,7 +29,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -65,7 +66,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +105,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -141,7 +144,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,7 +182,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -216,7 +221,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +260,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -292,7 +299,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -329,7 +337,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -367,7 +376,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -404,7 +414,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -441,7 +452,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystemFileEntry.json b/api/FileSystemFileEntry.json
index cb9b466cff44d9..04a560e8a4eb56 100644
--- a/api/FileSystemFileEntry.json
+++ b/api/FileSystemFileEntry.json
@@ -27,7 +27,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,7 +48,7 @@
             "firefox": {
               "version_added": "50",
               "version_removed": "52",
-              "notes": "While the <code>createWriter()</code> method existed, it immediately called <code>errorCallback</code> with the <code>NS_ERROR_DOM_SECURITY_ERR</code> error."
+              "notes": "While the `createWriter()` method existed, it immediately called `errorCallback` with the `NS_ERROR_DOM_SECURITY_ERR` error."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -63,7 +64,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,7 +101,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystemFileHandle.json b/api/FileSystemFileHandle.json
index 6e683a787322e0..4c90a95e7cd316 100644
--- a/api/FileSystemFileHandle.json
+++ b/api/FileSystemFileHandle.json
@@ -11,7 +11,9 @@
           "chrome": {
             "version_added": "86"
           },
-          "chrome_android": "mirror",
+          "chrome_android": {
+            "version_added": "109"
+          },
           "edge": "mirror",
           "firefox": {
             "version_added": "111"
@@ -28,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,24 +69,64 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "mode": {
+          "__compat": {
+            "description": "`mode` option",
+            "support": {
+              "chrome": {
+                "version_added": "121"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": false,
+              "deprecated": false
+            }
+          }
         }
       },
       "createWritable": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileSystemFileHandle/createWritable",
           "spec_url": "https://fs.spec.whatwg.org/#api-filesystemfilehandle-createwritable",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -101,15 +144,50 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "mode": {
+          "__compat": {
+            "description": "`mode` option",
+            "support": {
+              "chrome": {
+                "version_added": "121"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": {
+                "version_added": false
+              },
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": false,
+              "deprecated": false
+            }
+          }
         }
       },
       "getFile": {
@@ -123,7 +201,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -140,9 +220,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystemHandle.json b/api/FileSystemHandle.json
index 29c0d4b89c6477..2c5be72ff9caab 100644
--- a/api/FileSystemHandle.json
+++ b/api/FileSystemHandle.json
@@ -11,7 +11,9 @@
           "chrome": {
             "version_added": "86"
           },
-          "chrome_android": "mirror",
+          "chrome_android": {
+            "version_added": "109"
+          },
           "edge": "mirror",
           "firefox": {
             "version_added": "111"
@@ -28,9 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": {
-            "version_added": false
-          }
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,7 +50,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -66,9 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,7 +90,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -105,9 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,7 +163,9 @@
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": "111"
@@ -176,9 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -191,11 +196,16 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileSystemHandle/queryPermission",
           "spec_url": "https://wicg.github.io/file-system-access/#api-filesystemhandle-querypermission",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": false
@@ -212,9 +222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -247,9 +256,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -262,11 +270,16 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileSystemHandle/requestPermission",
           "spec_url": "https://wicg.github.io/file-system-access/#api-filesystemhandle-requestpermission",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
-            "chrome_android": "mirror",
+            "chrome_android": {
+              "version_added": "109"
+            },
             "edge": "mirror",
             "firefox": {
               "version_added": false
@@ -283,9 +296,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/FileSystemSync.json b/api/FileSystemSync.json
index bc600673fa16f1..408107585f4b37 100644
--- a/api/FileSystemSync.json
+++ b/api/FileSystemSync.json
@@ -26,7 +26,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -59,7 +60,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystemSyncAccessHandle.json b/api/FileSystemSyncAccessHandle.json
index 65df81c640c49d..481a8e791289be 100644
--- a/api/FileSystemSyncAccessHandle.json
+++ b/api/FileSystemSyncAccessHandle.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,7 +80,10 @@
         },
         "sync_version": {
           "__compat": {
-            "description": "Synchronous implementation of the <code>close()</code> method",
+            "description": "Synchronous implementation of the `close()` method",
+            "tags": [
+              "web-features:origin-private-file-system"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -102,7 +107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,7 +148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -152,7 +159,10 @@
         },
         "sync_version": {
           "__compat": {
-            "description": "Synchronous implementation of the <code>flush()</code> method",
+            "description": "Synchronous implementation of the `flush()` method",
+            "tags": [
+              "web-features:origin-private-file-system"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -176,7 +186,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -216,7 +227,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -226,7 +238,10 @@
         },
         "sync_version": {
           "__compat": {
-            "description": "Synchronous implementation of the <code>getSize()</code> method",
+            "description": "Synchronous implementation of the `getSize()` method",
+            "tags": [
+              "web-features:origin-private-file-system"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -250,7 +265,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -290,7 +306,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -329,7 +346,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,7 +357,10 @@
         },
         "sync_version": {
           "__compat": {
-            "description": "Synchronous implementation of the <code>truncate()</code> method",
+            "description": "Synchronous implementation of the `truncate()` method",
+            "tags": [
+              "web-features:origin-private-file-system"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -363,7 +384,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -403,7 +425,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FileSystemWritableFileStream.json b/api/FileSystemWritableFileStream.json
index 013ec4a4084e98..a45641eef1389b 100644
--- a/api/FileSystemWritableFileStream.json
+++ b/api/FileSystemWritableFileStream.json
@@ -4,12 +4,15 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileSystemWritableFileStream",
         "spec_url": "https://fs.spec.whatwg.org/#api-filesystemwritablefilestream",
+        "tags": [
+          "web-features:file-system-access"
+        ],
         "support": {
           "chrome": {
             "version_added": "86"
           },
           "chrome_android": {
-            "version_added": false
+            "version_added": "109"
           },
           "edge": "mirror",
           "firefox": {
@@ -28,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,12 +44,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileSystemWritableFileStream/seek",
           "spec_url": "https://fs.spec.whatwg.org/#api-filesystemwritablefilestream-seek",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "109"
             },
             "edge": "mirror",
             "firefox": {
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,12 +85,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileSystemWritableFileStream/truncate",
           "spec_url": "https://fs.spec.whatwg.org/#api-filesystemwritablefilestream-truncate",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "109"
             },
             "edge": "mirror",
             "firefox": {
@@ -101,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -114,12 +126,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FileSystemWritableFileStream/write",
           "spec_url": "https://fs.spec.whatwg.org/#api-filesystemwritablefilestream-write",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "109"
             },
             "edge": "mirror",
             "firefox": {
@@ -137,7 +152,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FocusEvent.json b/api/FocusEvent.json
index 8c3713a2a40a01..2ab7159147076e 100644
--- a/api/FocusEvent.json
+++ b/api/FocusEvent.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,7 +38,7 @@
       },
       "FocusEvent": {
         "__compat": {
-          "description": "<code>FocusEvent()</code> constructor",
+          "description": "`FocusEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FocusEvent/FocusEvent",
           "spec_url": "https://w3c.github.io/uievents/#dom-focusevent-focusevent",
           "support": {
@@ -63,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FontData.json b/api/FontData.json
index c0842ef7a830be..1c47b5c14db5ac 100644
--- a/api/FontData.json
+++ b/api/FontData.json
@@ -4,12 +4,16 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontData",
         "spec_url": "https://wicg.github.io/local-font-access/#fontdata-interface",
+        "tags": [
+          "web-features:local-fonts"
+        ],
         "support": {
           "chrome": {
             "version_added": "103"
           },
           "chrome_android": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://crbug.com/40840834"
           },
           "edge": "mirror",
           "firefox": {
@@ -29,7 +33,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontData/blob",
           "spec_url": "https://wicg.github.io/local-font-access/#ref-for-dom-fontdata-blob①",
+          "tags": [
+            "web-features:local-fonts"
+          ],
           "support": {
             "chrome": {
               "version_added": "103"
@@ -66,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -79,6 +88,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontData/family",
           "spec_url": "https://wicg.github.io/local-font-access/#ref-for-dom-fontdata-family",
+          "tags": [
+            "web-features:local-fonts"
+          ],
           "support": {
             "chrome": {
               "version_added": "103"
@@ -104,7 +116,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -117,6 +130,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontData/fullName",
           "spec_url": "https://wicg.github.io/local-font-access/#ref-for-dom-fontdata-fullname",
+          "tags": [
+            "web-features:local-fonts"
+          ],
           "support": {
             "chrome": {
               "version_added": "103"
@@ -142,7 +158,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -155,6 +172,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontData/postscriptName",
           "spec_url": "https://wicg.github.io/local-font-access/#ref-for-dom-fontdata-postscriptname",
+          "tags": [
+            "web-features:local-fonts"
+          ],
           "support": {
             "chrome": {
               "version_added": "103"
@@ -180,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -193,6 +214,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontData/style",
           "spec_url": "https://wicg.github.io/local-font-access/#ref-for-dom-fontdata-style",
+          "tags": [
+            "web-features:local-fonts"
+          ],
           "support": {
             "chrome": {
               "version_added": "103"
@@ -218,7 +242,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/FontFace.json b/api/FontFace.json
index ea7453af0cb3f9..9c50b8c6fa127b 100644
--- a/api/FontFace.json
+++ b/api/FontFace.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace",
         "spec_url": "https://drafts.csswg.org/css-font-loading/#fontface-interface",
+        "tags": [
+          "web-features:font-loading"
+        ],
         "support": {
           "chrome": {
             "version_added": "35"
@@ -27,7 +30,8 @@
           "samsunginternet_android": {
             "version_added": "4.0"
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,9 +41,12 @@
       },
       "FontFace": {
         "__compat": {
-          "description": "<code>FontFace()</code> constructor",
+          "description": "`FontFace()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/FontFace",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#font-face-constructor",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -63,7 +70,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,6 +83,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,6 +121,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/ascentOverride",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfacedescriptors-ascentoverride",
+          "tags": [
+            "web-features:font-metric-overrides"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -130,7 +145,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,6 +159,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/descentOverride",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfacedescriptors-descentoverride",
+          "tags": [
+            "web-features:font-metric-overrides"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -164,7 +183,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,6 +197,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/display",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontface-display",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -198,7 +221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -211,6 +235,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/family",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontface-family",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -234,7 +261,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -247,6 +275,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/featureSettings",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontface-featuresettings",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -270,7 +301,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -283,6 +315,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/lineGapOverride",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfacedescriptors-linegapoverride",
+          "tags": [
+            "web-features:font-metric-overrides"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -304,7 +339,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -317,6 +353,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/load",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#font-face-load",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -340,7 +379,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -353,6 +393,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/loaded",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontface-loaded",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -376,7 +419,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -389,6 +433,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/status",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontface-status",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -412,7 +459,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -425,6 +473,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/stretch",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontface-stretch",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -448,7 +499,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -461,6 +513,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/style",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontface-style",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -484,7 +539,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -497,6 +553,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/unicodeRange",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontface-unicoderange",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -520,7 +579,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -532,6 +592,9 @@
       "variant": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/variant",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -556,7 +619,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -569,6 +633,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/variationSettings",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfacedescriptors-variationsettings",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -590,7 +657,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -603,6 +671,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFace/weight",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontface-weight",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -626,7 +697,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FontFaceSet.json b/api/FontFaceSet.json
index 4b7cb8f3bf983b..03dc076035ec58 100644
--- a/api/FontFaceSet.json
+++ b/api/FontFaceSet.json
@@ -4,10 +4,13 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet",
         "spec_url": "https://drafts.csswg.org/css-font-loading/#FontFaceSet-interface",
+        "tags": [
+          "web-features:font-loading"
+        ],
         "support": {
           "chrome": {
             "version_added": "35",
-            "notes": "Chrome does not expose the <code>FontFaceSet</code> interface directly, and is only available through <a href='https://developer.mozilla.org/docs/Web/API/Document/fonts'><code>Document.fonts</code></a> or <a href='https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/fonts'><code>WorkerGlobalScope.fonts</code></a>."
+            "notes": "Chrome does not expose the `FontFaceSet` interface directly, and is only available through [`Document.fonts`](https://developer.mozilla.org/docs/Web/API/Document/fonts) or [`WorkerGlobalScope.fonts`](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/fonts)."
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,7 +40,7 @@
       },
       "FontFaceSet": {
         "__compat": {
-          "description": "<code>FontFaceSet()</code> constructor",
+          "description": "`FontFaceSet()` constructor",
           "support": {
             "chrome": {
               "version_added": false,
@@ -56,11 +60,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "10",
-              "notes": "Will be removed, see <a href='https://webkit.org/b/276794'>bug 276794</a>"
+              "notes": "Will be removed, see [bug 276794](https://webkit.org/b/276794)"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -72,6 +77,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -93,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,6 +115,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/add",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-add",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -127,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,6 +153,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/check",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-check",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": [
               {
@@ -148,7 +164,7 @@
               {
                 "version_added": "35",
                 "partial_implementation": true,
-                "notes": "Prior to version 120, this method returned <code>false</code> instead of <code>true</code> for nonexistent or locally installed fonts. See <a href='https://crbug.com/40893726'>bug 40893726</a>."
+                "notes": "Prior to version 120, this method returned `false` instead of `true` for nonexistent or locally installed fonts. See [bug 40893726](https://crbug.com/40893726)."
               }
             ],
             "chrome_android": "mirror",
@@ -168,7 +184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -181,6 +198,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/clear",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-clear",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -202,7 +222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,6 +236,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/delete",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-delete",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -236,7 +260,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -248,6 +273,9 @@
       "entries": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/entries",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "48"
@@ -269,7 +297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -281,6 +310,9 @@
       "forEach": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/forEach",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -302,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,6 +347,9 @@
       "has": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/has",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -335,7 +371,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -347,6 +384,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/keys",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "48"
@@ -368,7 +408,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -381,6 +422,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/load",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-load",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -402,7 +446,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -413,9 +458,12 @@
       },
       "loading_event": {
         "__compat": {
-          "description": "<code>loading</code> event",
+          "description": "`loading` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/loading_event",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-onloading",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -437,7 +485,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -448,9 +497,12 @@
       },
       "loadingdone_event": {
         "__compat": {
-          "description": "<code>loadingdone</code> event",
+          "description": "`loadingdone` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/loadingdone_event",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-onloadingdone",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -472,7 +524,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -483,9 +536,12 @@
       },
       "loadingerror_event": {
         "__compat": {
-          "description": "<code>loadingerror</code> event",
+          "description": "`loadingerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/loadingerror_event",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-onloadingerror",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -507,7 +563,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -520,6 +577,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/ready",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-ready",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -541,7 +601,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -553,6 +614,9 @@
       "size": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/size",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -574,7 +638,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -587,6 +652,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/status",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfaceset-status",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -608,7 +676,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -620,6 +689,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSet/values",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "48"
@@ -641,7 +713,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -654,6 +727,9 @@
         "__compat": {
           "description": "[Symbol.iterator]",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#fontfaceset",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "48"
@@ -675,7 +751,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FontFaceSetLoadEvent.json b/api/FontFaceSetLoadEvent.json
index 751ed62ed15c72..22167b8669a064 100644
--- a/api/FontFaceSetLoadEvent.json
+++ b/api/FontFaceSetLoadEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSetLoadEvent",
         "spec_url": "https://drafts.csswg.org/css-font-loading/#fontfacesetloadevent",
+        "tags": [
+          "web-features:font-loading"
+        ],
         "support": {
           "chrome": {
             "version_added": "35"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,9 +39,12 @@
       },
       "FontFaceSetLoadEvent": {
         "__compat": {
-          "description": "<code>FontFaceSetLoadEvent()</code> constructor",
+          "description": "`FontFaceSetLoadEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSetLoadEvent/FontFaceSetLoadEvent",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfacesetloadevent-fontfacesetloadevent",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,9 +79,12 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
-              "version_added": "69"
+              "version_added": false
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -92,9 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FontFaceSetLoadEvent/fontfaces",
           "spec_url": "https://drafts.csswg.org/css-font-loading/#dom-fontfacesetloadevent-fontfaces",
+          "tags": [
+            "web-features:font-loading"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -128,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FormData.json b/api/FormData.json
index eb9fde9cac2de0..a91a5e2dea97da 100644
--- a/api/FormData.json
+++ b/api/FormData.json
@@ -20,7 +20,7 @@
           },
           "firefox": {
             "version_added": "4",
-            "notes": "Before Firefox 7, specifying a <a href='https://developer.mozilla.org/docs/Web/API/Blob'><code>Blob</code></a> as the data to append to the object, the filename reported in the <code>Content-Disposition</code> HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox 7, the filename <code>blob</code> is sent."
+            "notes": "Before Firefox 7, specifying a [`Blob`](https://developer.mozilla.org/docs/Web/API/Blob) as the data to append to the object, the filename reported in the `Content-Disposition` HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox 7, the filename `blob` is sent."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -45,8 +45,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3",
-            "notes": "XHR in Android 4.0 sends empty content for <code>FormData</code> with <code>blob</code>."
-          }
+            "notes": "XHR in Android 4.0 sends empty content for `FormData` with `blob`."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,7 +57,7 @@
       },
       "FormData": {
         "__compat": {
-          "description": "<code>FormData()</code> constructor",
+          "description": "`FormData()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormData/FormData",
           "spec_url": "https://xhr.spec.whatwg.org/#dom-formdata",
           "tags": [
@@ -99,7 +100,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,7 +111,10 @@
         },
         "submitter": {
           "__compat": {
-            "description": "<code>submitter</code> parameter",
+            "description": "`submitter` parameter",
+            "tags": [
+              "web-features:xhr"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -134,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -147,6 +153,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -163,6 +172,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": "18.0.0"
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -171,7 +183,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,12 +213,12 @@
             },
             "firefox": {
               "version_added": "4",
-              "notes": "Before Firefox 7, specifying a <a href='https://developer.mozilla.org/docs/Web/API/Blob'><code>Blob</code></a> as the data to append to the object, the filename reported in the <code>Content-Disposition</code> HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox 7, the filename <code>blob</code> is sent."
+              "notes": "Before Firefox 7, specifying a [`Blob`](https://developer.mozilla.org/docs/Web/API/Blob) as the data to append to the object, the filename reported in the `Content-Disposition` HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox 7, the filename `blob` is sent."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
-              "notes": "With the \"Include local directory pass when uploading files to a server\" option enabled, IE will change the filename inside the <a href='https://developer.mozilla.org/docs/Web/API/Blob'><code>Blob</code></a> on the fly. To have direct control of the sent filename, the developer should send the filename as the third parameter value, i.e. <code>formData.append(name, value, filename)</code>."
+              "notes": "With the \"Include local directory pass when uploading files to a server\" option enabled, IE will change the filename inside the [`Blob`](https://developer.mozilla.org/docs/Web/API/Blob) on the fly. To have direct control of the sent filename, the developer should send the filename as the third parameter value, i.e. `formData.append(name, value, filename)`."
             },
             "nodejs": {
               "version_added": "18.0.0"
@@ -226,8 +239,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3",
-              "notes": "XHR in Android 4.0 sends empty content for <code>FormData</code> with <code>blob</code>."
-            }
+              "notes": "XHR in Android 4.0 sends empty content for `FormData` with `blob`."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,7 +251,7 @@
         },
         "filename_parameter": {
           "__compat": {
-            "description": "<code>filename</code> parameter",
+            "description": "`filename` parameter",
             "tags": [
               "web-features:xhr"
             ],
@@ -271,7 +285,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -285,6 +300,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormData/delete",
           "spec_url": "https://xhr.spec.whatwg.org/#dom-formdata-delete",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -314,7 +332,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -326,6 +345,9 @@
       "entries": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormData/entries",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -355,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -366,6 +389,9 @@
       },
       "forEach": {
         "__compat": {
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -395,7 +421,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -408,6 +435,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormData/get",
           "spec_url": "https://xhr.spec.whatwg.org/#dom-formdata-get",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -437,7 +467,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -450,6 +481,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormData/getAll",
           "spec_url": "https://xhr.spec.whatwg.org/#dom-formdata-getall",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -479,7 +513,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -492,6 +527,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormData/has",
           "spec_url": "https://xhr.spec.whatwg.org/#dom-formdata-has",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -521,7 +559,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -533,6 +572,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormData/keys",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -562,7 +604,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -575,6 +618,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormData/set",
           "spec_url": "https://xhr.spec.whatwg.org/#dom-formdata-set",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -604,7 +650,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -616,6 +663,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormData/values",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -645,7 +695,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -657,6 +708,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -686,7 +740,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FormDataEvent.json b/api/FormDataEvent.json
index cc6245c69354fa..ce6f62fce92c9f 100644
--- a/api/FormDataEvent.json
+++ b/api/FormDataEvent.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "FormDataEvent": {
         "__compat": {
-          "description": "<code>FormDataEvent()</code> constructor",
+          "description": "`FormDataEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/FormDataEvent/FormDataEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-formdataevent-interface",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/FragmentDirective.json b/api/FragmentDirective.json
index 0640a48f19478d..e3c99919392625 100644
--- a/api/FragmentDirective.json
+++ b/api/FragmentDirective.json
@@ -13,7 +13,7 @@
             "version_added": "83"
           },
           "firefox": {
-            "version_added": false
+            "version_added": "131"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -28,10 +28,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
diff --git a/api/GPU.json b/api/GPU.json
index 232961d957c6ee..7c3a7a08abd61e 100644
--- a/api/GPU.json
+++ b/api/GPU.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -96,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -155,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -165,7 +168,10 @@
         },
         "discrete_adapter_default_ac": {
           "__compat": {
-            "description": "On AC power, discrete GPU returned if no <code>powerPreference</code> set.",
+            "description": "On AC power, discrete GPU returned if no `powerPreference` set.",
+            "tags": [
+              "web-features:webgpu"
+            ],
             "support": {
               "chrome": {
                 "version_added": "115",
@@ -190,7 +196,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -234,7 +241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUAdapter.json b/api/GPUAdapter.json
index 005da9ccb3da23..bf75ace5796c88 100644
--- a/api/GPUAdapter.json
+++ b/api/GPUAdapter.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -119,7 +121,11 @@
       },
       "info": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUAdapter/info",
           "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpuadapter-info",
+          "tags": [
+            "web-features:webgpu"
+          ],
           "support": {
             "chrome": {
               "version_added": "127",
@@ -144,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -191,7 +198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -250,7 +258,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -265,7 +274,7 @@
           "support": {
             "chrome": {
               "version_added": "113",
-              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              "version_removed": "131"
             },
             "chrome_android": {
               "version_added": "121"
@@ -305,7 +314,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -349,7 +359,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -359,7 +370,10 @@
         },
         "lost_device_on_duplicate": {
           "__compat": {
-            "description": "Lost <code>GPUDevice</code> returned on duplicate calls.",
+            "description": "Lost `GPUDevice` returned on duplicate calls.",
+            "tags": [
+              "web-features:webgpu"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -398,7 +412,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/GPUAdapterInfo.json b/api/GPUAdapterInfo.json
index 9eba1628ff4ab4..eed33a30d7921b 100644
--- a/api/GPUAdapterInfo.json
+++ b/api/GPUAdapterInfo.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -96,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -149,7 +151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -202,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -255,7 +259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUBindGroup.json b/api/GPUBindGroup.json
index f6f8938d30807a..fe7f8c70d41580 100644
--- a/api/GPUBindGroup.json
+++ b/api/GPUBindGroup.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUBindGroupLayout.json b/api/GPUBindGroupLayout.json
index a5c96915535d36..2d7df1c7e48edd 100644
--- a/api/GPUBindGroupLayout.json
+++ b/api/GPUBindGroupLayout.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUBuffer.json b/api/GPUBuffer.json
index 8c9f1e8918f4fc..af99366a3a273e 100644
--- a/api/GPUBuffer.json
+++ b/api/GPUBuffer.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -226,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -285,7 +289,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -344,7 +349,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -403,7 +409,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -462,7 +469,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -521,7 +529,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUCanvasContext.json b/api/GPUCanvasContext.json
index 31c6e016cefe64..227f69221ab9c1 100644
--- a/api/GPUCanvasContext.json
+++ b/api/GPUCanvasContext.json
@@ -38,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -84,7 +85,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,7 +107,7 @@
               "version_added": "113",
               "notes": [
                 "Currently supported on ChromeOS, macOS, and Windows only.",
-                "The <code>rgba8unorm</code> format is currently not supported on macOS. See <a href='https://crbug.com/1298618'>bug 1298618</a>."
+                "The `rgba8unorm` format is currently not supported on macOS. See [bug 40823053](https://crbug.com/40823053)."
               ]
             },
             "chrome_android": {
@@ -134,7 +136,92 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        },
+        "toneMapping": {
+          "__compat": {
+            "description": "`toneMapping` config property",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpucanvasconfiguration-tonemapping",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "129",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        }
+      },
+      "getConfiguration": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUCanvasContext/getConfiguration",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpucanvascontext-getconfiguration",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "131",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+            },
+            "chrome_android": "mirror",
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -181,7 +268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -228,7 +316,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUCommandBuffer.json b/api/GPUCommandBuffer.json
index ee59f38ad7b956..f423d9f4f51322 100644
--- a/api/GPUCommandBuffer.json
+++ b/api/GPUCommandBuffer.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUCommandEncoder.json b/api/GPUCommandEncoder.json
index bfa8f89ef9665a..298004344e0ab9 100644
--- a/api/GPUCommandEncoder.json
+++ b/api/GPUCommandEncoder.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,13 +109,58 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "timestampWrites": {
+          "__compat": {
+            "description": "`timestampWrites` descriptor property",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpucomputepassdescriptor-timestampwrites",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "121",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "beginRenderPass": {
@@ -167,13 +213,145 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "depthSlice_option": {
+          "__compat": {
+            "description": "color attachment `depthSlice` option",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpurenderpasscolorattachment-depthslice",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "125",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "125"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "separate_depth_stencil_read-only": {
+          "__compat": {
+            "description": "Set `depthReadOnly` and `stencilReadOnly` to `true` separately from one another.",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "123",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "123"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "timestampWrites": {
+          "__compat": {
+            "description": "`timestampWrites` descriptor property",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpurenderpassdescriptor-timestampwrites",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "121",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "clearBuffer": {
@@ -226,7 +404,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -285,7 +464,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -344,7 +524,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -403,7 +584,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -462,7 +644,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -521,7 +704,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -580,7 +764,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -639,7 +824,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -698,7 +884,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -757,7 +944,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -816,7 +1004,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -871,7 +1060,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GPUCompilationInfo.json b/api/GPUCompilationInfo.json
index c3f588b98ab90a..c9dc15d1e0d55d 100644
--- a/api/GPUCompilationInfo.json
+++ b/api/GPUCompilationInfo.json
@@ -38,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -84,7 +85,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUCompilationMessage.json b/api/GPUCompilationMessage.json
index df0e330395bd50..78005f6afff33f 100644
--- a/api/GPUCompilationMessage.json
+++ b/api/GPUCompilationMessage.json
@@ -38,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -84,7 +85,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -131,7 +133,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -178,7 +181,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -225,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -272,7 +277,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -319,7 +325,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUComputePassEncoder.json b/api/GPUComputePassEncoder.json
index a856ac11e85d56..423723f6ddd19c 100644
--- a/api/GPUComputePassEncoder.json
+++ b/api/GPUComputePassEncoder.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -172,7 +174,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -231,7 +234,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -290,7 +294,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -349,7 +354,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -408,7 +414,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -467,7 +474,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -526,13 +534,57 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "unset_bind_group": {
+          "__compat": {
+            "description": "Pass `null` to unset bind group",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "117",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "setPipeline": {
@@ -585,7 +637,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -639,7 +692,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUComputePipeline.json b/api/GPUComputePipeline.json
index 48e5cf9e83ffd4..24fbc832222a9d 100644
--- a/api/GPUComputePipeline.json
+++ b/api/GPUComputePipeline.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUDevice.json b/api/GPUDevice.json
index f26d72b33c2fd0..ac22951ee66647 100644
--- a/api/GPUDevice.json
+++ b/api/GPUDevice.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,13 +169,99 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "storageTexture_access_read-write_read-only": {
+          "__compat": {
+            "description": "<code>read-write</code> and <code>read-only</code> <code>storageTexture.access</code>",
+            "spec_url": "https://gpuweb.github.io/gpuweb/wgsl/#memory-access-mode",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "124"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "texture_rgb10a2uint": {
+          "__compat": {
+            "description": "<code>rgb10a2uint</code> texture format",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gputextureformat-rgb10a2uint",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "119",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "createBuffer": {
@@ -226,7 +314,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -285,7 +374,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -344,13 +434,55 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "optional_entryPoint": {
+          "__compat": {
+            "description": "`entryPoint` properties are optional for determined default compute shader entry points.",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "121",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "createComputePipelineAsync": {
@@ -403,13 +535,55 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "optional_entryPoint": {
+          "__compat": {
+            "description": "`entryPoint` properties are optional for determined default compute shader entry points.",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "121",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "createPipelineLayout": {
@@ -462,7 +636,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -517,13 +692,58 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "timestamp": {
+          "__compat": {
+            "description": "Create `timestamp` queryset types",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpuquerytype-timestamp",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "121",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "createRenderBundleEncoder": {
@@ -576,7 +796,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -635,76 +856,592 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
-        }
-      },
-      "createRenderPipelineAsync": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUDevice/createRenderPipelineAsync",
-          "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpudevice-createrenderpipelineasync",
-          "tags": [
-            "web-features:webgpu"
-          ],
-          "support": {
-            "chrome": {
-              "version_added": "113",
-              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
-            },
-            "chrome_android": {
-              "version_added": "121"
-            },
-            "deno": [
-              {
-                "version_added": "1.39",
-                "flags": [
-                  {
-                    "type": "runtime_flag",
-                    "name": "--unstable-webgpu"
-                  }
-                ]
-              },
-              {
-                "version_added": "1.8",
-                "version_removed": "1.32"
-              }
+        },
+        "dual-source-blending": {
+          "__compat": {
+            "description": "Dual-source blending: `src1`, `one-minus-src1`, `src1-alpha`, and `one-minus-src1-alpha` blend factors.",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpufeaturename-dual-source-blending",
+            "tags": [
+              "web-features:webgpu"
             ],
-            "edge": "mirror",
-            "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Currently supported on Linux and Windows only."
-            },
-            "firefox_android": {
-              "version_added": false
-            },
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "preview"
+            "support": {
+              "chrome": {
+                "version_added": "130",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "130"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
           }
-        }
-      },
-      "createSampler": {
-        "__compat": {
+        },
+        "optional_depthcompare_depthwriteenabled": {
+          "__compat": {
+            "description": "`depthCompare` and `depthWriteEnabled` properties are optional when not needed (for example, formats without depth).",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "120",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "optional_entryPoint": {
+          "__compat": {
+            "description": "`entryPoint` properties are optional for determined default fragment and vertex shader entry points.",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "121",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "texture_rgb10a2uint": {
+          "__compat": {
+            "description": "<code>rgb10a2uint</code> texture format",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gputextureformat-rgb10a2uint",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "119",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "validates_depth_bias_for_line_and_point_topologies": {
+          "__compat": {
+            "description": "Validates that `depthBias`, `depthBiasSlopeScale`, and `depthBiasClamp` must be `0` for line and point topologies.",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "vertex_unorm10-10-10-2": {
+          "__compat": {
+            "description": "<code>unorm10-10-10-2</code> vertex format",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpuvertexformat-unorm10-10-10-2",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "119",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        }
+      },
+      "createRenderPipelineAsync": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUDevice/createRenderPipelineAsync",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpudevice-createrenderpipelineasync",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "113",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": [
+              {
+                "version_added": "1.39",
+                "flags": [
+                  {
+                    "type": "runtime_flag",
+                    "name": "--unstable-webgpu"
+                  }
+                ]
+              },
+              {
+                "version_added": "1.8",
+                "version_removed": "1.32"
+              }
+            ],
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "preview",
+              "partial_implementation": true,
+              "notes": "Currently supported on Linux and Windows only."
+            },
+            "firefox_android": {
+              "version_added": false
+            },
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "preview"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        },
+        "dual-source-blending": {
+          "__compat": {
+            "description": "Dual-source blending: `src1`, `one-minus-src1`, `src1-alpha`, and `one-minus-src1-alpha` blend factors.",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpufeaturename-dual-source-blending",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "130",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "130"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "optional_depthcompare_depthwriteenabled": {
+          "__compat": {
+            "description": "`depthCompare` and `depthWriteEnabled` properties are optional when not needed (for example, formats without depth).",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "120",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "optional_entryPoint": {
+          "__compat": {
+            "description": "`entryPoint` properties are optional for determined default fragment and vertex shader entry points.",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "121",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "texture_rgb10a2uint": {
+          "__compat": {
+            "description": "<code>rgb10a2uint</code> texture format",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gputextureformat-rgb10a2uint",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "119",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "validates_depth_bias_for_line_and_point_topologies": {
+          "__compat": {
+            "description": "Validates that `depthBias`, `depthBiasSlopeScale`, and `depthBiasClamp` must be `0` for line and point topologies.",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "vertex_unorm10-10-10-2": {
+          "__compat": {
+            "description": "<code>unorm10-10-10-2</code> vertex format",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpuvertexformat-unorm10-10-10-2",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "119",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        }
+      },
+      "createSampler": {
+        "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUDevice/createSampler",
           "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpudevice-createsampler",
           "tags": [
@@ -753,7 +1490,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -812,7 +1550,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -871,13 +1610,58 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "texture_rgb10a2uint": {
+          "__compat": {
+            "description": "<code>rgb10a2uint</code> texture format",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gputextureformat-rgb10a2uint",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "119",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "destroy": {
@@ -930,7 +1714,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -989,7 +1774,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1036,7 +1822,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1044,12 +1831,59 @@
             "deprecated": false
           }
         },
+        "color_space_display-p3": {
+          "__compat": {
+            "description": "<code>display-p3</code> color space",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "121",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "videoframe_source": {
           "__compat": {
-            "description": "<code>VideoFrame</code> object as source",
+            "description": "`VideoFrame` object as source",
+            "tags": [
+              "web-features:webgpu"
+            ],
             "support": {
               "chrome": {
-                "version_added": "116"
+                "version_added": "116",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
               },
               "chrome_android": {
                 "version_added": "121"
@@ -1073,7 +1907,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1133,7 +1968,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1192,7 +2028,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1251,7 +2088,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1310,7 +2148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1369,7 +2208,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1428,7 +2268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1439,7 +2280,7 @@
       },
       "uncapturederror_event": {
         "__compat": {
-          "description": "<code>uncapturederror</code> event",
+          "description": "`uncapturederror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUDevice/uncapturederror_event",
           "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpudevice-onuncapturederror",
           "tags": [
@@ -1476,7 +2317,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUDeviceLostInfo.json b/api/GPUDeviceLostInfo.json
index ee6a15d653f04a..2e3540de22d810 100644
--- a/api/GPUDeviceLostInfo.json
+++ b/api/GPUDeviceLostInfo.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUError.json b/api/GPUError.json
index 7180517744c931..9eec225c2aba41 100644
--- a/api/GPUError.json
+++ b/api/GPUError.json
@@ -46,7 +46,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -100,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUExternalTexture.json b/api/GPUExternalTexture.json
index 3a478eb3316001..dd7b6e53222484 100644
--- a/api/GPUExternalTexture.json
+++ b/api/GPUExternalTexture.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -76,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUInternalError.json b/api/GPUInternalError.json
index 85209e14999f99..c008b631a99b25 100644
--- a/api/GPUInternalError.json
+++ b/api/GPUInternalError.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -44,7 +45,7 @@
       },
       "GPUInternalError": {
         "__compat": {
-          "description": "<code>GPUInternalError()</code> constructor",
+          "description": "`GPUInternalError()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUInternalError/GPUInternalError",
           "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpuinternalerror-gpuinternalerror",
           "tags": [
@@ -77,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUOutOfMemoryError.json b/api/GPUOutOfMemoryError.json
index d3fba7583bc98d..3416f8f45795cf 100644
--- a/api/GPUOutOfMemoryError.json
+++ b/api/GPUOutOfMemoryError.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -60,7 +61,7 @@
       },
       "GPUOutOfMemoryError": {
         "__compat": {
-          "description": "<code>GPUOutOfMemoryError()</code> constructor",
+          "description": "`GPUOutOfMemoryError()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUOutOfMemoryError/GPUOutOfMemoryError",
           "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpuoutofmemoryerror-gpuoutofmemoryerror",
           "tags": [
@@ -109,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUPipelineError.json b/api/GPUPipelineError.json
index bf73e1ca65a593..cc79b89c0a71bb 100644
--- a/api/GPUPipelineError.json
+++ b/api/GPUPipelineError.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -44,7 +45,7 @@
       },
       "GPUPipelineError": {
         "__compat": {
-          "description": "<code>GPUPipelineError()</code> constructor",
+          "description": "`GPUPipelineError()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUPipelineError/GPUPipelineError",
           "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpupipelineerror-constructor",
           "tags": [
@@ -77,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -87,7 +89,10 @@
         },
         "message_optional": {
           "__compat": {
-            "description": "<code>message</code> parameter is optional",
+            "description": "`message` parameter is optional",
+            "tags": [
+              "web-features:webgpu"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113"
@@ -114,7 +119,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -158,7 +164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUPipelineLayout.json b/api/GPUPipelineLayout.json
index b0732bea7cc366..58679e7ca88735 100644
--- a/api/GPUPipelineLayout.json
+++ b/api/GPUPipelineLayout.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUQuerySet.json b/api/GPUQuerySet.json
index 76b12e12a6560c..9bbc10216f2816 100644
--- a/api/GPUQuerySet.json
+++ b/api/GPUQuerySet.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -226,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -285,13 +289,58 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "timestamp": {
+          "__compat": {
+            "description": "`timestamp` value",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpuquerytype-timestamp",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "121",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/api/GPUQueue.json b/api/GPUQueue.json
index cb061682f6b7be..22851511615e3b 100644
--- a/api/GPUQueue.json
+++ b/api/GPUQueue.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -116,9 +118,54 @@
             "deprecated": false
           }
         },
+        "htmlimageelement_imagedata_source": {
+          "__compat": {
+            "description": "`HTMLImageElement` and `ImageData` objects as `source`",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "118"
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "videoframe_source": {
           "__compat": {
-            "description": "<code>VideoFrame</code> object as source",
+            "description": "`VideoFrame` object as `source`",
+            "tags": [
+              "web-features:webgpu"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -157,7 +204,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -217,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -272,7 +321,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -331,13 +381,55 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "validates_command_buffer_uniqueness": {
+          "__compat": {
+            "description": "Validates that submitted command buffers are unique.",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "126",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "writeBuffer": {
@@ -390,7 +482,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -449,7 +542,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPURenderBundle.json b/api/GPURenderBundle.json
index 05145042864f27..93e08dee9530d8 100644
--- a/api/GPURenderBundle.json
+++ b/api/GPURenderBundle.json
@@ -46,7 +46,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -100,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPURenderBundleEncoder.json b/api/GPURenderBundleEncoder.json
index db136b1e297e22..ade8f905f990c9 100644
--- a/api/GPURenderBundleEncoder.json
+++ b/api/GPURenderBundleEncoder.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -219,7 +222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -283,7 +287,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -342,7 +347,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -401,7 +407,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -456,7 +463,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -515,7 +523,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -574,7 +583,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -633,13 +643,57 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "unset_bind_group": {
+          "__compat": {
+            "description": "Pass `null` to unset bind group",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "117",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "setIndexBuffer": {
@@ -692,7 +746,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -751,7 +806,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -810,7 +866,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -820,7 +877,10 @@
         },
         "unset_vertex_buffer": {
           "__compat": {
-            "description": "Pass <code>null</code> to unset vertex buffer",
+            "description": "Pass `null` to unset vertex buffer",
+            "tags": [
+              "web-features:webgpu"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117",
@@ -860,7 +920,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/GPURenderPassEncoder.json b/api/GPURenderPassEncoder.json
index 8050ef029cf28d..76c56961c572ad 100644
--- a/api/GPURenderPassEncoder.json
+++ b/api/GPURenderPassEncoder.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -104,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -163,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -222,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -286,7 +290,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -350,7 +355,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -409,7 +415,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -464,7 +471,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -523,7 +531,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -582,7 +591,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -641,7 +651,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -700,7 +711,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -759,7 +771,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -818,13 +831,57 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "unset_bind_group": {
+          "__compat": {
+            "description": "Pass `null` to unset bind group",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "117",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "setBlendConstant": {
@@ -877,7 +934,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -936,7 +994,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -995,7 +1054,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1054,7 +1114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1113,7 +1174,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1172,7 +1234,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1182,7 +1245,10 @@
         },
         "unset_vertex_buffer": {
           "__compat": {
-            "description": "Pass <code>null</code> to unset vertex buffer",
+            "description": "Pass `null` to unset vertex buffer",
+            "tags": [
+              "web-features:webgpu"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117",
@@ -1222,7 +1288,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1282,7 +1349,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1332,7 +1400,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPURenderPipeline.json b/api/GPURenderPipeline.json
index c27495259d226b..dbc557cf72f4d9 100644
--- a/api/GPURenderPipeline.json
+++ b/api/GPURenderPipeline.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -167,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUSampler.json b/api/GPUSampler.json
index 536c48380e5827..2fd4b5c87d40c4 100644
--- a/api/GPUSampler.json
+++ b/api/GPUSampler.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUShaderModule.json b/api/GPUShaderModule.json
index 8346003783ac0a..96633e20bbf0b6 100644
--- a/api/GPUShaderModule.json
+++ b/api/GPUShaderModule.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -96,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -155,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUSupportedFeatures.json b/api/GPUSupportedFeatures.json
index d44a969cecfbe2..a60978676f6e7c 100644
--- a/api/GPUSupportedFeatures.json
+++ b/api/GPUSupportedFeatures.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -102,7 +103,609 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_bgra8unorm-storage": {
+        "__compat": {
+          "description": "`bgra8unorm-storage` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#bgra8unorm-storage",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "113"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_clip-distances": {
+        "__compat": {
+          "description": "`clip-distances` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpufeaturename-clip-distances",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "131"
+            },
+            "chrome_android": "mirror",
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_depth-clip-control": {
+        "__compat": {
+          "description": "`depth-clip-control` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#depth-clip-control",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "113"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_depth32float-stencil8": {
+        "__compat": {
+          "description": "`depth32float-stencil8` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#depth32float-stencil8",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "113"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_dual-source-blending": {
+        "__compat": {
+          "description": "`dual-source-blending` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpufeaturename-dual-source-blending",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "130"
+            },
+            "chrome_android": "mirror",
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_float32-blendable": {
+        "__compat": {
+          "description": "`float32-blendable` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#float32-blendable",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "enable-unsafe-webgpu",
+                  "value_to_set": "true"
+                }
+              ]
+            },
+            "chrome_android": "mirror",
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_float32-filterable": {
+        "__compat": {
+          "description": "`float32-filterable` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#float32-filterable",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "119"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_indirect-first-instance": {
+        "__compat": {
+          "description": "`indirect-first-instance` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#indirect-first-instance",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "113"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_rg11b10ufloat-renderable": {
+        "__compat": {
+          "description": "`rg11b10ufloat-renderable` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#rg11b10ufloat-renderable",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "113"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_shader-f16": {
+        "__compat": {
+          "description": "`shader-f16` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#shader-f16",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "120"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_texture-compression-astc": {
+        "__compat": {
+          "description": "`texture-compression-astc` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#texture-compression-astc",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "113"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_texture-compression-bc": {
+        "__compat": {
+          "description": "`texture-compression-bc` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#texture-compression-bc",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "113"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_texture-compression-etc2": {
+        "__compat": {
+          "description": "`texture-compression-etc2` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#texture-compression-etc2",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "113"
+            },
+            "chrome_android": {
+              "version_added": "121"
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "feature_timestamp-query": {
+        "__compat": {
+          "description": "`timestamp-query` feature",
+          "spec_url": "https://gpuweb.github.io/gpuweb/#timestamp-query",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "121"
+            },
+            "chrome_android": "mirror",
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -155,7 +758,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -208,7 +812,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -261,7 +866,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -314,7 +920,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -367,7 +974,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -421,7 +1029,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUSupportedLimits.json b/api/GPUSupportedLimits.json
index 9c71644e78b291..dad24bfd02824f 100644
--- a/api/GPUSupportedLimits.json
+++ b/api/GPUSupportedLimits.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -150,7 +152,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -209,7 +212,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -264,7 +268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -307,7 +312,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -350,7 +356,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -405,7 +412,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -460,7 +468,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -515,7 +524,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -570,7 +580,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -625,7 +636,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -680,7 +692,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -735,7 +748,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -790,7 +804,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -845,7 +860,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -888,7 +904,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -943,7 +960,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -998,7 +1016,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1053,7 +1072,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1108,7 +1128,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1163,7 +1184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1218,7 +1240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1273,7 +1296,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1328,7 +1352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1383,7 +1408,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1438,7 +1464,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1493,7 +1520,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1548,7 +1576,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1603,7 +1632,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1658,7 +1688,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1713,7 +1744,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1768,7 +1800,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUTexture.json b/api/GPUTexture.json
index 0a26acb1fd1bc4..4cb21544ab493c 100644
--- a/api/GPUTexture.json
+++ b/api/GPUTexture.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,13 +109,58 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "texture_rgb10a2uint": {
+          "__compat": {
+            "description": "<code>rgb10a2uint</code> texture format",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gputextureformat-rgb10a2uint",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "119",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "depthOrArrayLayers": {
@@ -167,7 +213,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -226,7 +273,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -285,7 +333,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -344,13 +393,58 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "texture_rgb10a2uint": {
+          "__compat": {
+            "description": "<code>rgb10a2uint</code> texture format",
+            "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gputextureformat-rgb10a2uint",
+            "tags": [
+              "web-features:webgpu"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "119",
+                "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+              },
+              "chrome_android": {
+                "version_added": "121"
+              },
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "height": {
@@ -403,7 +497,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -462,7 +557,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -521,7 +617,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -580,7 +677,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -639,7 +737,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -698,7 +797,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUTextureView.json b/api/GPUTextureView.json
index a2bee766626087..9ae41d03e2e718 100644
--- a/api/GPUTextureView.json
+++ b/api/GPUTextureView.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -108,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUUncapturedErrorEvent.json b/api/GPUUncapturedErrorEvent.json
index 7f93167c3f904e..e13d02a3e53b91 100644
--- a/api/GPUUncapturedErrorEvent.json
+++ b/api/GPUUncapturedErrorEvent.json
@@ -38,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -48,7 +49,7 @@
       },
       "GPUUncapturedErrorEvent": {
         "__compat": {
-          "description": "<code>GPUUncapturedErrorEvent()</code> constructor",
+          "description": "`GPUUncapturedErrorEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUUncapturedErrorEvent/GPUUncapturedErrorEvent",
           "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpuuncapturederrorevent-gpuuncapturederrorevent",
           "tags": [
@@ -85,7 +86,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -128,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GPUValidationError.json b/api/GPUValidationError.json
index 50242ce1867fbc..6522fc248b4391 100644
--- a/api/GPUValidationError.json
+++ b/api/GPUValidationError.json
@@ -50,7 +50,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -60,7 +61,7 @@
       },
       "GPUValidationError": {
         "__compat": {
-          "description": "<code>GPUValidationError()</code> constructor",
+          "description": "`GPUValidationError()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GPUValidationError/GPUValidationError",
           "spec_url": "https://gpuweb.github.io/gpuweb/#dom-gpuvalidationerror-gpuvalidationerror",
           "tags": [
@@ -109,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/GainNode.json b/api/GainNode.json
index 070eb1b74a2852..e6ae9fba860c66 100644
--- a/api/GainNode.json
+++ b/api/GainNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "GainNode": {
         "__compat": {
-          "description": "<code>GainNode()</code> constructor",
+          "description": "`GainNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GainNode/GainNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-gainnode-constructor-gainnode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Gamepad.json b/api/Gamepad.json
index 68169f8df68d54..51b1904bbd28ad 100644
--- a/api/Gamepad.json
+++ b/api/Gamepad.json
@@ -32,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -109,7 +111,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -185,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,7 +254,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,7 +292,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -323,7 +330,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -361,7 +369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -399,7 +408,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -437,7 +447,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -474,7 +485,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -512,7 +524,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -550,7 +563,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GamepadButton.json b/api/GamepadButton.json
index 441338b839cad3..d4ffe471578dc3 100644
--- a/api/GamepadButton.json
+++ b/api/GamepadButton.json
@@ -29,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,7 +145,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,7 +184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GamepadEvent.json b/api/GamepadEvent.json
index 1f3dacd98a0434..e23ca8697c5d07 100644
--- a/api/GamepadEvent.json
+++ b/api/GamepadEvent.json
@@ -29,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,7 +40,7 @@
       },
       "GamepadEvent": {
         "__compat": {
-          "description": "<code>GamepadEvent()</code> constructor",
+          "description": "`GamepadEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GamepadEvent/GamepadEvent",
           "spec_url": "https://w3c.github.io/gamepad/#dom-gamepadevent-constructor",
           "support": {
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -145,7 +148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GamepadHapticActuator.json b/api/GamepadHapticActuator.json
index ad78431f6b07b1..e5cdc12d425868 100644
--- a/api/GamepadHapticActuator.json
+++ b/api/GamepadHapticActuator.json
@@ -29,7 +29,8 @@
             "version_added": false
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,7 +150,7 @@
         },
         "type_trigger-rumble": {
           "__compat": {
-            "description": "<code>trigger-rumble</code> effect type",
+            "description": "`trigger-rumble` effect type",
             "spec_url": "https://w3c.github.io/gamepad/#dom-gamepadhapticeffecttype-trigger-rumble",
             "support": {
               "chrome": {
@@ -169,7 +173,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -208,7 +213,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -218,7 +224,7 @@
         },
         "params_leftTrigger_parameter": {
           "__compat": {
-            "description": "<code>params.leftTrigger</code> parameter",
+            "description": "`params.leftTrigger` parameter",
             "spec_url": "https://w3c.github.io/gamepad/#dom-gamepadeffectparameters-lefttrigger",
             "support": {
               "chrome": {
@@ -241,7 +247,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -252,7 +259,7 @@
         },
         "params_rightTrigger_parameter": {
           "__compat": {
-            "description": "<code>params.rightTrigger</code> parameter",
+            "description": "`params.rightTrigger` parameter",
             "spec_url": "https://w3c.github.io/gamepad/#dom-gamepadeffectparameters-righttrigger",
             "support": {
               "chrome": {
@@ -275,7 +282,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -286,7 +294,7 @@
         },
         "type_trigger-rumble": {
           "__compat": {
-            "description": "<code>trigger-rumble</code> effect type",
+            "description": "`trigger-rumble` effect type",
             "spec_url": "https://w3c.github.io/gamepad/#dom-gamepadhapticeffecttype-trigger-rumble",
             "support": {
               "chrome": {
@@ -309,7 +317,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -347,7 +356,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -385,7 +395,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -422,7 +433,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GamepadPose.json b/api/GamepadPose.json
index 25ff9041bc61f8..d4882e2f384673 100644
--- a/api/GamepadPose.json
+++ b/api/GamepadPose.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -60,7 +61,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -97,7 +99,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -134,7 +137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -171,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -208,7 +213,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -245,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -282,7 +289,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -319,7 +327,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -356,7 +365,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Geolocation.json b/api/Geolocation.json
index ec6204b60e1fa9..34dd01ee631adb 100644
--- a/api/Geolocation.json
+++ b/api/Geolocation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Geolocation",
         "spec_url": "https://w3c.github.io/geolocation/#geolocation_interface",
+        "tags": [
+          "web-features:geolocation"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -14,7 +17,7 @@
           },
           "firefox": {
             "version_added": "3.5",
-            "notes": "<a href='https://gpsd.gitlab.io/gpsd/index.html'>GPSD</a> (GPS daemon) support added in Firefox 3.6. WiFi-based location is provided by Google (<a href='https://support.mozilla.org/en-US/kb/does-firefox-share-my-location-websites'>privacy</a>) or a custom provider (<a href='https://wiki.mozilla.org/CloudServices/Location/Software'>MLS instructions</a>)."
+            "notes": "[GPSD](https://gpsd.gitlab.io/gpsd/index.html) (GPS daemon) support added in Firefox 3.6. WiFi-based location is provided by Google ([privacy](https://support.mozilla.org/en-US/kb/does-firefox-share-my-location-websites)) or a custom provider ([MLS instructions](https://wiki.mozilla.org/CloudServices/Location/Software))."
           },
           "firefox_android": {
             "version_added": "4"
@@ -38,7 +41,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,6 +53,9 @@
       "secure_context_required": {
         "__compat": {
           "description": "Secure context required",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -72,8 +79,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "51",
-              "notes": "Secure context is only required for applications targeting Android Nougat (7) and higher. See <a href='https://crbug.com/603574'>bug 603574</a>."
-            }
+              "notes": "Secure context is only required for applications targeting Android Nougat (7) and higher. See [bug 40465140](https://crbug.com/40465140)."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -86,6 +94,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Geolocation/clearWatch",
           "spec_url": "https://w3c.github.io/geolocation/#clearwatch-method",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -117,7 +128,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,6 +142,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Geolocation/getCurrentPosition",
           "spec_url": "https://w3c.github.io/geolocation/#getcurrentposition-method",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -161,7 +176,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,6 +190,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Geolocation/watchPosition",
           "spec_url": "https://w3c.github.io/geolocation/#watchposition-method",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -205,7 +224,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GeolocationCoordinates.json b/api/GeolocationCoordinates.json
index b6337655bdde27..1265c7deb585e5 100644
--- a/api/GeolocationCoordinates.json
+++ b/api/GeolocationCoordinates.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates",
         "spec_url": "https://w3c.github.io/geolocation/#coordinates_interface",
+        "tags": [
+          "web-features:geolocation"
+        ],
         "support": {
           "chrome": [
             {
@@ -94,7 +97,8 @@
               "version_added": "≤37",
               "version_removed": "78"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -105,6 +109,9 @@
       "secure_context_required": {
         "__compat": {
           "description": "Secure context required",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -128,7 +135,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -141,6 +149,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/accuracy",
           "spec_url": "https://w3c.github.io/geolocation/#latitude-longitude-and-accuracy-attributes",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -184,7 +195,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -197,6 +209,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/altitude",
           "spec_url": "https://w3c.github.io/geolocation/#altitude-and-altitudeaccuracy-attributes",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -240,7 +255,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -253,6 +269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/altitudeAccuracy",
           "spec_url": "https://w3c.github.io/geolocation/#altitude-and-altitudeaccuracy-attributes",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -296,7 +315,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -309,6 +329,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/heading",
           "spec_url": "https://w3c.github.io/geolocation/#heading-attribute",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -352,7 +375,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -365,6 +389,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/latitude",
           "spec_url": "https://w3c.github.io/geolocation/#latitude-longitude-and-accuracy-attributes",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -408,7 +435,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -421,6 +449,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/longitude",
           "spec_url": "https://w3c.github.io/geolocation/#latitude-longitude-and-accuracy-attributes",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -464,7 +495,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -477,6 +509,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/speed",
           "spec_url": "https://w3c.github.io/geolocation/#speed-attribute",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -520,7 +555,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -533,6 +569,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/toJSON",
           "spec_url": "https://w3c.github.io/geolocation/#tojson-method-0",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -554,7 +593,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GeolocationPosition.json b/api/GeolocationPosition.json
index ff78adf20e4c76..7d5e97ed89c3d8 100644
--- a/api/GeolocationPosition.json
+++ b/api/GeolocationPosition.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationPosition",
         "spec_url": "https://w3c.github.io/geolocation/#position_interface",
+        "tags": [
+          "web-features:geolocation"
+        ],
         "support": {
           "chrome": [
             {
@@ -80,7 +83,8 @@
               "version_added": "≤37",
               "version_removed": "78"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -91,6 +95,9 @@
       "secure_context_required": {
         "__compat": {
           "description": "Secure context required",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -114,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationPosition/coords",
           "spec_url": "https://w3c.github.io/geolocation/#coords-attribute",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -158,7 +169,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +183,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationPosition/timestamp",
           "spec_url": "https://w3c.github.io/geolocation/#timestamp-attribute",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -202,7 +217,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationPosition/toJSON",
           "spec_url": "https://w3c.github.io/geolocation/#tojson-method",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -236,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GeolocationPositionError.json b/api/GeolocationPositionError.json
index 2dac9d3a3ac038..9801626cf43bd5 100644
--- a/api/GeolocationPositionError.json
+++ b/api/GeolocationPositionError.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationPositionError",
         "spec_url": "https://w3c.github.io/geolocation/#position_error_interface",
+        "tags": [
+          "web-features:geolocation"
+        ],
         "support": {
           "chrome": [
             {
@@ -55,7 +58,8 @@
           ],
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,6 +70,9 @@
       "secure_context_required": {
         "__compat": {
           "description": "Secure context required",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -89,7 +96,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,6 +110,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationPositionError/code",
           "spec_url": "https://w3c.github.io/geolocation/#code-attribute",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -131,7 +142,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,6 +156,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GeolocationPositionError/message",
           "spec_url": "https://w3c.github.io/geolocation/#message-attribute",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -173,7 +188,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GestureEvent.json b/api/GestureEvent.json
index 3f8d348ab31f54..bc24e929001172 100644
--- a/api/GestureEvent.json
+++ b/api/GestureEvent.json
@@ -26,7 +26,8 @@
             "version_added": "2"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -57,7 +58,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,7 +93,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,7 +128,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -157,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -191,7 +196,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -257,7 +264,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,7 +299,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -325,7 +334,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -359,7 +369,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -391,7 +402,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -423,7 +435,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/GravitySensor.json b/api/GravitySensor.json
index dbac2cbc8a1f41..e1ad6bd4f24d88 100644
--- a/api/GravitySensor.json
+++ b/api/GravitySensor.json
@@ -5,7 +5,7 @@
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/GravitySensor",
         "spec_url": "https://w3c.github.io/accelerometer/#gravitysensor-interface",
         "tags": [
-          "web-features:gravity-sensor"
+          "web-features:accelerometer"
         ],
         "support": {
           "chrome": {
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,11 +39,11 @@
       },
       "GravitySensor": {
         "__compat": {
-          "description": "<code>GravitySensor()</code> constructor",
+          "description": "`GravitySensor()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/GravitySensor/GravitySensor",
           "spec_url": "https://w3c.github.io/accelerometer/#dom-gravitysensor-gravitysensor",
           "tags": [
-            "web-features:gravity-sensor"
+            "web-features:accelerometer"
           ],
           "support": {
             "chrome": {
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Gyroscope.json b/api/Gyroscope.json
index 2f4b4723a2427c..7c3c1f5554f131 100644
--- a/api/Gyroscope.json
+++ b/api/Gyroscope.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "Gyroscope": {
         "__compat": {
-          "description": "<code>Gyroscope()</code> constructor",
+          "description": "`Gyroscope()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Gyroscope/Gyroscope",
           "spec_url": "https://w3c.github.io/gyroscope/#dom-gyroscope-gyroscope",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HID.json b/api/HID.json
index 0d7264a1df78e2..877cc3c262f347 100644
--- a/api/HID.json
+++ b/api/HID.json
@@ -12,7 +12,8 @@
             "version_added": "89"
           },
           "chrome_android": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://crbug.com/40628009"
           },
           "edge": "mirror",
           "firefox": {
@@ -30,7 +31,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": {
+            "version_added": false,
+            "impl_url": "https://crbug.com/40163407"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,9 +43,57 @@
           "deprecated": false
         }
       },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webhid"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "131",
+                "partial_implementation": true,
+                "notes": "Dedicated workers and WebExtension service workers, not shared workers and non-WebExtension service workers."
+              },
+              {
+                "version_added": "117",
+                "partial_implementation": true,
+                "notes": "WebExtension service workers only."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "connect_event": {
         "__compat": {
-          "description": "<code>connect</code> event",
+          "description": "`connect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HID/connect_event",
           "spec_url": "https://wicg.github.io/webhid/#dom-hid-onconnect",
           "tags": [
@@ -69,7 +122,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -80,7 +134,7 @@
       },
       "disconnect_event": {
         "__compat": {
-          "description": "<code>disconnect</code> event",
+          "description": "`disconnect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HID/disconnect_event",
           "spec_url": "https://wicg.github.io/webhid/#dom-hid-ondisconnect",
           "tags": [
@@ -109,7 +163,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -148,7 +203,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -187,7 +243,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/HIDConnectionEvent.json b/api/HIDConnectionEvent.json
index 8cf7567cf0a39e..f2918aa9cb8d55 100644
--- a/api/HIDConnectionEvent.json
+++ b/api/HIDConnectionEvent.json
@@ -12,7 +12,8 @@
             "version_added": "89"
           },
           "chrome_android": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://crbug.com/40628009"
           },
           "edge": "mirror",
           "firefox": {
@@ -30,7 +31,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": {
+            "version_added": false,
+            "impl_url": "https://crbug.com/40163407"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +45,7 @@
       },
       "HIDConnectionEvent": {
         "__compat": {
-          "description": "<code>HIDConnectionEvent()</code> constructor",
+          "description": "`HIDConnectionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HIDConnectionEvent/HIDConnectionEvent",
           "spec_url": "https://wicg.github.io/webhid/#dom-hidconnectionevent-constructor",
           "tags": [
@@ -69,7 +74,56 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webhid"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "131",
+                "partial_implementation": true,
+                "notes": "Dedicated workers and WebExtension service workers, not shared workers and non-WebExtension service workers."
+              },
+              {
+                "version_added": "117",
+                "partial_implementation": true,
+                "notes": "WebExtension service workers only."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/HIDDevice.json b/api/HIDDevice.json
index f8925eee2587d0..8058f81368e534 100644
--- a/api/HIDDevice.json
+++ b/api/HIDDevice.json
@@ -12,7 +12,8 @@
             "version_added": "89"
           },
           "chrome_android": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://crbug.com/40628009"
           },
           "edge": "mirror",
           "firefox": {
@@ -30,7 +31,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": {
+            "version_added": false,
+            "impl_url": "https://crbug.com/40163407"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,6 +43,54 @@
           "deprecated": false
         }
       },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webhid"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "131",
+                "partial_implementation": true,
+                "notes": "Dedicated workers and WebExtension service workers, not shared workers and non-WebExtension service workers."
+              },
+              {
+                "version_added": "117",
+                "partial_implementation": true,
+                "notes": "WebExtension service workers only."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "close": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HIDDevice/close",
@@ -68,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -120,6 +175,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HIDDevice/forget",
           "spec_url": "https://wicg.github.io/webhid/#dom-hiddevice-forget",
+          "tags": [
+            "web-features:webhid"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -143,7 +201,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -154,7 +213,7 @@
       },
       "inputreport_event": {
         "__compat": {
-          "description": "<code>inputreport</code> event",
+          "description": "`inputreport` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HIDDevice/inputreport_event",
           "spec_url": "https://wicg.github.io/webhid/#dom-hiddevice-oninputreport",
           "tags": [
@@ -183,7 +242,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -222,7 +282,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -261,7 +322,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -300,7 +362,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -339,7 +402,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -378,7 +442,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -417,7 +482,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -456,7 +522,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -495,7 +562,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/HIDInputReportEvent.json b/api/HIDInputReportEvent.json
index fbd948dd7a5f09..2b7cd80675c5c0 100644
--- a/api/HIDInputReportEvent.json
+++ b/api/HIDInputReportEvent.json
@@ -12,7 +12,8 @@
             "version_added": "89"
           },
           "chrome_android": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://crbug.com/40628009"
           },
           "edge": "mirror",
           "firefox": {
@@ -30,7 +31,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": {
+            "version_added": false,
+            "impl_url": "https://crbug.com/40163407"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,6 +43,54 @@
           "deprecated": false
         }
       },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webhid"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "131",
+                "partial_implementation": true,
+                "notes": "Dedicated workers and WebExtension service workers, not shared workers and non-WebExtension service workers."
+              },
+              {
+                "version_added": "117",
+                "partial_implementation": true,
+                "notes": "WebExtension service workers only."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "data": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HIDInputReportEvent/data",
@@ -68,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,7 +201,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/HMDVRDevice.json b/api/HMDVRDevice.json
index 6424ad656830b9..51fcc2c32b9644 100644
--- a/api/HMDVRDevice.json
+++ b/api/HMDVRDevice.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLAllCollection.json b/api/HTMLAllCollection.json
index 9b49637afd9dd4..4bf5decc83a995 100644
--- a/api/HTMLAllCollection.json
+++ b/api/HTMLAllCollection.json
@@ -31,7 +31,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -70,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,7 +153,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLAnchorElement.json b/api/HTMLAnchorElement.json
index 54805000d6ec84..314f181e61cd45 100644
--- a/api/HTMLAnchorElement.json
+++ b/api/HTMLAnchorElement.json
@@ -36,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -75,7 +76,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -90,7 +92,7 @@
           "spec_url": "https://wicg.github.io/attribution-reporting-api/#dom-htmlattributionsrcelementutils-attributionsrc",
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "125"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -109,7 +111,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -148,7 +151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -187,7 +191,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,7 +228,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -263,7 +269,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -293,7 +300,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5.5",
-              "notes": "In Internet Explorer 9, the host of an <a href='https://developer.mozilla.org/docs/Web/HTML/Element/a'><code>&lt;a&gt;</code></a> always include the port (e.g. <code>developer.mozilla.org:443</code>), even if there is no explicit port in the <code>href</code> attribute value."
+              "notes": "In Internet Explorer 9, the host of an [`&lt;a&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/a) always include the port (e.g. `developer.mozilla.org:443`), even if there is no explicit port in the `href` attribute value."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -303,7 +310,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -342,7 +350,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -385,7 +394,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -428,7 +438,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -437,6 +448,41 @@
           }
         }
       },
+      "hrefTranslate": {
+        "__compat": {
+          "support": {
+            "chrome": {
+              "version_added": "81"
+            },
+            "chrome_android": "mirror",
+            "edge": {
+              "version_added": false
+            },
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "name": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/obsolete.html#dom-a-name",
@@ -467,7 +513,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -493,7 +540,7 @@
             },
             "firefox": {
               "version_added": "26",
-              "notes": "Before Firefox 49, results for URL using the <code>blob</code> scheme incorrectly returned <code>null</code>."
+              "notes": "Before Firefox 49, results for URL using the `blob` scheme incorrectly returned `null`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -509,7 +556,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -546,7 +594,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -572,7 +621,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 53, the <code>pathname</code> and <code>search</code> <code>HTMLHyperlinkElementUtils</code> properties returned the wrong parts of the URL. For example, for a URL of <code>https://z.com/x?a=true&amp;b=false</code>, <code>pathname</code> would return <code>'/x?a=true&amp;b=false'</code> and <code>search</code> would return '', rather than <code>'/x'</code> and <code>'?a=true&amp;b=false'</code> respectively. This has now been fixed."
+              "notes": "Before Firefox 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&amp;b=false`, `pathname` would return `'/x?a=true&amp;b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&amp;b=false'` respectively. This has now been fixed."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -586,7 +635,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -610,7 +660,7 @@
             "firefox": {
               "version_added": "1",
               "partial_implementation": true,
-              "notes": "This property is exposed but has no effect if the <code>browser.send_pings</code> preference is not set to <code>true</code>. See <a href='https://bugzil.la/951104'>bug 951104</a>."
+              "notes": "This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See [bug 951104](https://bugzil.la/951104)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -626,7 +676,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -665,7 +716,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -704,7 +756,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -748,7 +801,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -759,6 +813,9 @@
         "no-referrer-when-downgrade": {
           "__compat": {
             "description": "no-referrer-when-downgrade",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -781,7 +838,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -793,6 +851,9 @@
         "origin-when-cross-origin": {
           "__compat": {
             "description": "origin-when-cross-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -815,7 +876,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -827,6 +889,9 @@
         "unsafe-url": {
           "__compat": {
             "description": "unsafe-url",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -849,7 +914,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -893,7 +959,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -932,7 +999,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -971,7 +1039,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -997,7 +1066,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 53, the <code>pathname</code> and <code>search</code> <code>HTMLHyperlinkElementUtils</code> properties returned the wrong parts of the URL. For example, for a URL of <code>https://z.com/x?a=true&amp;b=false</code>, <code>pathname</code> would return <code>'/x?a=true&amp;b=false'</code> and <code>search</code> would return '', rather than <code>'/x'</code> and <code>'?a=true&amp;b=false'</code> respectively. This has now been fixed."
+              "notes": "Before Firefox 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&amp;b=false`, `pathname` would return `'/x?a=true&amp;b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&amp;b=false'` respectively. This has now been fixed."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1011,7 +1080,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1050,7 +1120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1093,7 +1164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1136,7 +1208,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1177,7 +1250,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1220,7 +1294,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1257,7 +1332,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLAreaElement.json b/api/HTMLAreaElement.json
index d59f8a58fd9171..379ba7ebfaa4f6 100644
--- a/api/HTMLAreaElement.json
+++ b/api/HTMLAreaElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,6 +45,7 @@
       },
       "alt": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/alt",
           "spec_url": "https://html.spec.whatwg.org/multipage/image-maps.html#dom-area-alt",
           "tags": [
             "web-features:image-maps"
@@ -75,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -86,6 +89,7 @@
       },
       "coords": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/coords",
           "spec_url": "https://html.spec.whatwg.org/multipage/image-maps.html#dom-area-coords",
           "tags": [
             "web-features:image-maps"
@@ -117,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,6 +133,7 @@
       },
       "download": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/download",
           "spec_url": "https://html.spec.whatwg.org/multipage/image-maps.html#dom-area-download",
           "support": {
             "chrome": {
@@ -152,7 +158,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -192,7 +199,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -222,7 +230,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5.5",
-              "notes": "In Internet Explorer 9, the host of an <a href='https://developer.mozilla.org/docs/Web/HTML/Element/a'><code>&lt;a&gt;</code></a> always include the port (e.g. <code>developer.mozilla.org:443</code>), even if there is no explicit port in the <code>href</code> attribute value."
+              "notes": "In Internet Explorer 9, the host of an [`&lt;a&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/a) always include the port (e.g. `developer.mozilla.org:443`), even if there is no explicit port in the `href` attribute value."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -232,7 +240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -271,7 +280,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,7 +324,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -353,7 +364,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -379,7 +391,7 @@
             },
             "firefox": {
               "version_added": "26",
-              "notes": "Before Firefox 49, results for URL using the <code>blob</code> scheme incorrectly returned <code>null</code>."
+              "notes": "Before Firefox 49, results for URL using the `blob` scheme incorrectly returned `null`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -395,7 +407,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,7 +445,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -458,7 +472,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 53, the <code>pathname</code> and <code>search</code> <code>HTMLHyperlinkElementUtils</code> properties returned the wrong parts of the URL. For example, for a URL of <code>https://z.com/x?a=true&amp;b=false</code>, <code>pathname</code> would return <code>'/x?a=true&amp;b=false'</code> and <code>search</code> would return '', rather than <code>'/x'</code> and <code>'?a=true&amp;b=false'</code> respectively. This has now been fixed."
+              "notes": "Before Firefox 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&amp;b=false`, `pathname` would return `'/x?a=true&amp;b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&amp;b=false'` respectively. This has now been fixed."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -472,7 +486,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -496,7 +511,7 @@
             "firefox": {
               "version_added": "1",
               "partial_implementation": true,
-              "notes": "This property is exposed but has no effect if the <code>browser.send_pings</code> preference is not set to <code>true</code>. See <a href='https://bugzil.la/951104'>bug 951104</a>."
+              "notes": "This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See [bug 951104](https://bugzil.la/951104)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -512,7 +527,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -551,7 +567,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -590,7 +607,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -634,7 +652,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -645,6 +664,9 @@
         "no-referrer-when-downgrade": {
           "__compat": {
             "description": "no-referrer-when-downgrade",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -667,7 +689,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -679,6 +702,9 @@
         "origin-when-cross-origin": {
           "__compat": {
             "description": "origin-when-cross-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -701,7 +727,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -713,6 +740,9 @@
         "unsafe-url": {
           "__compat": {
             "description": "unsafe-url",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -735,7 +765,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -775,7 +806,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -818,7 +850,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -844,7 +877,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 53, the <code>pathname</code> and <code>search</code> <code>HTMLHyperlinkElementUtils</code> properties returned the wrong parts of the URL. For example, for a URL of <code>https://z.com/x?a=true&amp;b=false</code>, <code>pathname</code> would return <code>'/x?a=true&amp;b=false'</code> and <code>search</code> would return '', rather than <code>'/x'</code> and <code>'?a=true&amp;b=false'</code> respectively. This has now been fixed."
+              "notes": "Before Firefox 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&amp;b=false`, `pathname` would return `'/x?a=true&amp;b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&amp;b=false'` respectively. This has now been fixed."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -858,7 +891,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -869,6 +903,7 @@
       },
       "shape": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/shape",
           "spec_url": "https://html.spec.whatwg.org/multipage/image-maps.html#dom-area-shape",
           "tags": [
             "web-features:image-maps"
@@ -900,7 +935,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -943,7 +979,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -982,7 +1019,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1019,7 +1057,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLAudioElement.json b/api/HTMLAudioElement.json
index 98f723f9dbdf5e..eb65e34b691037 100644
--- a/api/HTMLAudioElement.json
+++ b/api/HTMLAudioElement.json
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,7 +49,7 @@
       },
       "Audio": {
         "__compat": {
-          "description": "<code>Audio()</code> constructor",
+          "description": "`Audio()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLAudioElement/Audio",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-audio-dev",
           "tags": [
@@ -85,7 +86,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLBRElement.json b/api/HTMLBRElement.json
index 657f0a6bf41468..8e8d705bcd3545 100644
--- a/api/HTMLBRElement.json
+++ b/api/HTMLBRElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLBaseElement.json b/api/HTMLBaseElement.json
index 546106cfc1d9bb..b3b4303402a373 100644
--- a/api/HTMLBaseElement.json
+++ b/api/HTMLBaseElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -90,7 +92,7 @@
         },
         "forbid_data_javascript_urls": {
           "__compat": {
-            "description": "<code>data:</code> and <code>javascript:</code> urls are not allowed",
+            "description": "`data:` and `javascript:` urls are not allowed",
             "support": {
               "chrome": {
                 "version_added": false,
@@ -113,7 +115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -148,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -194,7 +198,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLBodyElement.json b/api/HTMLBodyElement.json
index 549dfd69a94434..0bf0f25cb92f77 100644
--- a/api/HTMLBodyElement.json
+++ b/api/HTMLBodyElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,7 +119,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,7 +161,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -199,7 +203,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -240,7 +245,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -281,7 +287,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLButtonElement.json b/api/HTMLButtonElement.json
index ee8d70131b1dd4..b0b56bef0b2f58 100644
--- a/api/HTMLButtonElement.json
+++ b/api/HTMLButtonElement.json
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,6 +49,7 @@
       },
       "checkValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/checkValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-checkvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -83,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,6 +95,116 @@
           }
         }
       },
+      "command": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/command",
+          "support": {
+            "chrome": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "enable-experimental-web-platform-features",
+                  "value_to_set": "enabled"
+                }
+              ]
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.element.invokers.enabled",
+                  "value_to_set": "true"
+                }
+              ]
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "InvokerAttributesEnabled",
+                  "value_to_set": "true"
+                }
+              ]
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "commandForElement": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/commandForElement",
+          "support": {
+            "chrome": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "enable-experimental-web-platform-features",
+                  "value_to_set": "enabled"
+                }
+              ]
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.element.invokers.enabled",
+                  "value_to_set": "true"
+                }
+              ]
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "InvokerAttributesEnabled",
+                  "value_to_set": "true"
+                }
+              ]
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "disabled": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/disabled",
@@ -128,7 +241,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,6 +253,7 @@
       },
       "form": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/form",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fae-form-dev",
           "tags": [
             "web-features:button"
@@ -172,7 +287,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -183,6 +299,7 @@
       },
       "formAction": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formAction",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formaction",
           "tags": [
             "web-features:button"
@@ -197,7 +314,7 @@
             },
             "firefox": {
               "version_added": "4",
-              "notes": "In Firefox 56, the implementation has been updated so that the <code>formAction</code> property returns the correct form submission URL, as per spec, when the associated button is being used to submit a form (<a href='https://bugzil.la/1366361'>bug 1366361</a>)."
+              "notes": "In Firefox 56, the implementation has been updated so that the `formAction` property returns the correct form submission URL, as per spec, when the associated button is being used to submit a form ([bug 1366361](https://bugzil.la/1366361))."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -217,7 +334,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -228,6 +346,7 @@
       },
       "formEnctype": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formEnctype",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formenctype",
           "tags": [
             "web-features:button"
@@ -261,7 +380,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -272,6 +392,7 @@
       },
       "formMethod": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formMethod",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formmethod",
           "tags": [
             "web-features:button"
@@ -305,7 +426,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -316,6 +438,7 @@
       },
       "formNoValidate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formNoValidate",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formnovalidate",
           "tags": [
             "web-features:button"
@@ -351,7 +474,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -362,6 +486,7 @@
       },
       "formTarget": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formTarget",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formtarget",
           "tags": [
             "web-features:button"
@@ -395,116 +520,11 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "invokeaction": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "enable-experimental-web-platform-features",
-                  "value_to_set": "enabled"
-                }
-              ]
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "dom.element.invokers.enabled",
-                  "value_to_set": "true"
-                }
-              ]
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "InvokerAttributesEnabled",
-                  "value_to_set": "true"
-                }
-              ]
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "invoketarget": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "enable-experimental-web-platform-features",
-                  "value_to_set": "enabled"
-                }
-              ]
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "dom.element.invokers.enabled",
-                  "value_to_set": "true"
-                }
-              ]
             },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "InvokerAttributesEnabled",
-                  "value_to_set": "true"
-                }
-              ]
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -546,7 +566,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -557,6 +578,7 @@
       },
       "name": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/name",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-name",
           "tags": [
             "web-features:button"
@@ -590,7 +612,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -627,7 +650,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -664,7 +688,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -675,6 +700,7 @@
       },
       "reportValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/reportValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-reportvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -704,7 +730,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -715,6 +742,7 @@
       },
       "setCustomValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/setCustomValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-setcustomvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -722,7 +750,7 @@
           "support": {
             "chrome": {
               "version_added": "4",
-              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see <a href='https://crbug.com/828757'>bug 828757</a>."
+              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see [bug 41380670](https://crbug.com/41380670)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -751,7 +779,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -796,7 +825,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -807,6 +837,7 @@
       },
       "validationMessage": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/validationMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-validationmessage-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -842,7 +873,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -853,6 +885,7 @@
       },
       "validity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/validity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-constraint-validation-api:dom-cva-validity",
           "tags": [
             "web-features:constraint-validation"
@@ -888,7 +921,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -899,6 +933,7 @@
       },
       "value": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/value",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-button-value",
           "tags": [
             "web-features:button"
@@ -932,7 +967,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -943,6 +979,7 @@
       },
       "willValidate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/willValidate",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-willvalidate-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -978,7 +1015,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLCanvasElement.json b/api/HTMLCanvasElement.json
index 475a69cf383f97..9070e7673c7d3e 100644
--- a/api/HTMLCanvasElement.json
+++ b/api/HTMLCanvasElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/captureStream",
           "spec_url": "https://w3c.github.io/mediacapture-fromelement/#dom-htmlcanvaselement-capturestream",
+          "tags": [
+            "web-features:capture-stream-canvas"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -71,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -82,7 +87,7 @@
       },
       "contextlost_event": {
         "__compat": {
-          "description": "<code>contextlost</code> event",
+          "description": "`contextlost` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/webglcontextlost_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-contextlost",
           "tags": [
@@ -109,7 +114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,7 +126,7 @@
       },
       "contextrestored_event": {
         "__compat": {
-          "description": "<code>contextrestored</code> event",
+          "description": "`contextrestored` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/contextrestored_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-contextrestored",
           "tags": [
@@ -147,7 +153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,7 +197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,7 +208,7 @@
         },
         "bitmaprenderer_context": {
           "__compat": {
-            "description": "<code>bitmaprenderer</code> context",
+            "description": "`bitmaprenderer` context",
             "support": {
               "chrome": {
                 "version_added": "66"
@@ -222,7 +230,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -232,7 +241,7 @@
           },
           "options_alpha_parameter": {
             "__compat": {
-              "description": "<code>options.alpha</code> parameter",
+              "description": "`options.alpha` parameter",
               "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-imagebitmaprenderingcontextsettings-alpha",
               "support": {
                 "chrome": {
@@ -255,7 +264,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -348,7 +358,8 @@
                   "alternative_name": "experimental-webgl",
                   "version_added": "37"
                 }
-              ]
+              ],
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -358,8 +369,11 @@
           },
           "options_alpha_parameter": {
             "__compat": {
-              "description": "<code>options.alpha</code> parameter",
+              "description": "`options.alpha` parameter",
               "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#WEBGLCONTEXTATTRIBUTES",
+              "tags": [
+                "web-features:webgl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "32"
@@ -385,7 +399,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -396,8 +411,11 @@
           },
           "options_desynchronized_parameter": {
             "__compat": {
-              "description": "<code>options.desynchronized</code> parameter",
+              "description": "`options.desynchronized` parameter",
               "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#WEBGLCONTEXTATTRIBUTES",
+              "tags": [
+                "web-features:webgl-desynchronized"
+              ],
               "support": {
                 "chrome": [
                   {
@@ -433,7 +451,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -444,8 +463,11 @@
           },
           "options_failIfMajorPerformanceCaveat_parameter": {
             "__compat": {
-              "description": "<code>options.failIfMajorPerformanceCaveat</code> parameter",
+              "description": "`options.failIfMajorPerformanceCaveat` parameter",
               "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#WEBGLCONTEXTATTRIBUTES",
+              "tags": [
+                "web-features:webgl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "33"
@@ -471,7 +493,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -482,8 +505,11 @@
           },
           "options_powerPreference_parameter": {
             "__compat": {
-              "description": "<code>options.powerPreference</code> parameter",
+              "description": "`options.powerPreference` parameter",
               "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#WEBGLCONTEXTATTRIBUTES",
+              "tags": [
+                "web-features:webgl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "75"
@@ -509,7 +535,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -549,7 +576,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -559,8 +587,11 @@
           },
           "options_alpha_parameter": {
             "__compat": {
-              "description": "<code>options.alpha</code> parameter",
+              "description": "`options.alpha` parameter",
               "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#WEBGLCONTEXTATTRIBUTES",
+              "tags": [
+                "web-features:webgl2"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "56"
@@ -582,7 +613,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -593,8 +625,11 @@
           },
           "options_desynchronized_parameter": {
             "__compat": {
-              "description": "<code>options.desynchronized</code> parameter",
+              "description": "`options.desynchronized` parameter",
               "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#WEBGLCONTEXTATTRIBUTES",
+              "tags": [
+                "web-features:webgl2-desynchronized"
+              ],
               "support": {
                 "chrome": [
                   {
@@ -630,7 +665,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -641,8 +677,11 @@
           },
           "options_failIfMajorPerformanceCaveat_parameter": {
             "__compat": {
-              "description": "<code>options.failIfMajorPerformanceCaveat</code> parameter",
+              "description": "`options.failIfMajorPerformanceCaveat` parameter",
               "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#WEBGLCONTEXTATTRIBUTES",
+              "tags": [
+                "web-features:webgl2"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "56"
@@ -664,7 +703,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -675,8 +715,11 @@
           },
           "options_powerPreference_parameter": {
             "__compat": {
-              "description": "<code>options.powerPreference</code> parameter",
+              "description": "`options.powerPreference` parameter",
               "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#WEBGLCONTEXTATTRIBUTES",
+              "tags": [
+                "web-features:webgl2"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "75"
@@ -702,7 +745,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -714,7 +758,7 @@
         },
         "webgpu_context": {
           "__compat": {
-            "description": "<code>webgpu</code> context",
+            "description": "`webgpu` context",
             "spec_url": "https://gpuweb.github.io/gpuweb/#canvas-getcontext",
             "tags": [
               "web-features:webgpu"
@@ -747,7 +791,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -758,7 +803,7 @@
         },
         "2d_context": {
           "__compat": {
-            "description": "<code>2d</code> context",
+            "description": "`2d` context",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -786,7 +831,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -796,8 +842,11 @@
           },
           "options_alpha_parameter": {
             "__compat": {
-              "description": "<code>options.alpha</code> parameter",
+              "description": "`options.alpha` parameter",
               "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-canvasrenderingcontext2dsettings-alpha",
+              "tags": [
+                "web-features:canvas-2d-alpha"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "32"
@@ -821,7 +870,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -832,8 +882,11 @@
           },
           "options_colorSpace_parameter": {
             "__compat": {
-              "description": "<code>options.colorSpace</code> parameter",
+              "description": "`options.colorSpace` parameter",
               "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-canvasrenderingcontext2dsettings-colorspace",
+              "tags": [
+                "web-features:canvas-2d-color-management"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "92"
@@ -855,7 +908,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -866,8 +920,11 @@
           },
           "options_desynchronized_parameter": {
             "__compat": {
-              "description": "<code>options.desynchronized</code> parameter",
+              "description": "`options.desynchronized` parameter",
               "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-canvasrenderingcontext2dsettings-desynchronized",
+              "tags": [
+                "web-features:canvas-2d-desynchronized"
+              ],
               "support": {
                 "chrome": [
                   {
@@ -903,7 +960,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -914,8 +972,11 @@
           },
           "options_willReadFrequently_parameter": {
             "__compat": {
-              "description": "<code>options.willReadFrequently</code> parameter",
+              "description": "`options.willReadFrequently` parameter",
               "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-canvasrenderingcontext2dsettings-willreadfrequently",
+              "tags": [
+                "web-features:canvas-2d-willreadfrequently"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "99"
@@ -937,7 +998,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -984,7 +1046,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1017,7 +1080,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1049,7 +1113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1096,7 +1161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1106,7 +1172,7 @@
         },
         "quality_parameter": {
           "__compat": {
-            "description": "<code>quality</code> parameter",
+            "description": "`quality` parameter",
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -1128,7 +1194,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1139,7 +1206,7 @@
         },
         "type_parameter_jpeg": {
           "__compat": {
-            "description": "<code>type</code> parameter supports <code>\"image/jpeg\"</code>",
+            "description": "`type` parameter supports `\"image/jpeg\"`",
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -1161,7 +1228,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1172,7 +1240,7 @@
         },
         "type_parameter_png": {
           "__compat": {
-            "description": "<code>type</code> parameter supports <code>\"image/png\"</code>",
+            "description": "`type` parameter supports `\"image/png\"`",
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -1194,7 +1262,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1205,7 +1274,7 @@
         },
         "type_parameter_webp": {
           "__compat": {
-            "description": "<code>type</code> parameter supports <code>\"image/webp\"</code>",
+            "description": "`type` parameter supports `\"image/webp\"`",
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -1227,7 +1296,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1275,7 +1345,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1285,7 +1356,7 @@
         },
         "type_parameter_jpeg": {
           "__compat": {
-            "description": "<code>type</code> parameter supports <code>\"image/jpeg\"</code>",
+            "description": "`type` parameter supports `\"image/jpeg\"`",
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -1307,7 +1378,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1318,7 +1390,7 @@
         },
         "type_parameter_png": {
           "__compat": {
-            "description": "<code>type</code> parameter supports <code>\"image/png\"</code>",
+            "description": "`type` parameter supports `\"image/png\"`",
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -1340,7 +1412,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1351,7 +1424,7 @@
         },
         "type_parameter_webp": {
           "__compat": {
-            "description": "<code>type</code> parameter supports <code>\"image/webp\"</code>",
+            "description": "`type` parameter supports `\"image/webp\"`",
             "support": {
               "chrome": {
                 "version_added": "17"
@@ -1377,7 +1450,8 @@
               },
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1415,7 +1489,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1426,9 +1501,12 @@
       },
       "webglcontextcreationerror_event": {
         "__compat": {
-          "description": "<code>webglcontextcreationerror</code> event",
+          "description": "`webglcontextcreationerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/webglcontextcreationerror_event",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.15.4",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1460,7 +1538,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1471,9 +1550,12 @@
       },
       "webglcontextlost_event": {
         "__compat": {
-          "description": "<code>webglcontextlost</code> event",
+          "description": "`webglcontextlost` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/webglcontextlost_event",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.15.2",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1505,7 +1587,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1516,9 +1599,12 @@
       },
       "webglcontextrestored_event": {
         "__compat": {
-          "description": "<code>webglcontextrestored</code> event",
+          "description": "`webglcontextrestored` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/webglcontextrestored_event",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.15.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1550,7 +1636,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1595,7 +1682,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLCollection.json b/api/HTMLCollection.json
index 802864a1bde1f8..4b6b8722acde62 100644
--- a/api/HTMLCollection.json
+++ b/api/HTMLCollection.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCollection",
         "spec_url": "https://dom.spec.whatwg.org/#interface-htmlcollection",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCollection/item",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-htmlcollection-item①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCollection/length",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-htmlcollection-length①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLCollection/namedItem",
           "spec_url": "https://dom.spec.whatwg.org/#dom-htmlcollection-nameditem-key",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -150,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLDListElement.json b/api/HTMLDListElement.json
index d5463573af3d90..465caedd081508 100644
--- a/api/HTMLDListElement.json
+++ b/api/HTMLDListElement.json
@@ -33,7 +33,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,7 +74,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLDataElement.json b/api/HTMLDataElement.json
index 259440f4fa3009..661ee6e56f23f4 100644
--- a/api/HTMLDataElement.json
+++ b/api/HTMLDataElement.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLDataListElement.json b/api/HTMLDataListElement.json
index 66087cac124810..8c378a80a46f2c 100644
--- a/api/HTMLDataListElement.json
+++ b/api/HTMLDataListElement.json
@@ -36,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +47,7 @@
       },
       "options": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLDataListElement/options",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-datalist-options-dev",
           "tags": [
             "web-features:datalist"
@@ -79,7 +81,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLDetailsElement.json b/api/HTMLDetailsElement.json
index ef2b989eb02488..6d84e6d1c38958 100644
--- a/api/HTMLDetailsElement.json
+++ b/api/HTMLDetailsElement.json
@@ -30,7 +30,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,6 +41,8 @@
       },
       "name": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLDetailsElement/open",
+          "spec_url": "https://html.spec.whatwg.org/multipage/interactive-elements.html#dom-details-name",
           "tags": [
             "web-features:details-name"
           ],
@@ -64,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,45 +107,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "toggle_event": {
-        "__compat": {
-          "description": "<code>toggle</code> event",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLDetailsElement/toggle_event",
-          "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-toggle",
-          "tags": [
-            "web-features:details"
-          ],
-          "support": {
-            "chrome": {
-              "version_added": "36"
             },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": "49"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "10.1"
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLDialogElement.json b/api/HTMLDialogElement.json
index 90a2a84e84bdca..9530c00581b9c5 100644
--- a/api/HTMLDialogElement.json
+++ b/api/HTMLDialogElement.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,8 +39,8 @@
       },
       "cancel_event": {
         "__compat": {
-          "description": "<code>cancel</code> event",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/cancel_event",
+          "description": "`cancel` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLDialogElement/cancel_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-cancel",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-oncancel"
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,7 +119,7 @@
       },
       "close_event": {
         "__compat": {
-          "description": "<code>close</code> event",
+          "description": "`close` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLDialogElement/close_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-close",
           "tags": [
@@ -143,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,7 +184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -217,7 +222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +260,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,7 +298,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLDirectoryElement.json b/api/HTMLDirectoryElement.json
index 42ef2be150df20..d17b637d1bd6d6 100644
--- a/api/HTMLDirectoryElement.json
+++ b/api/HTMLDirectoryElement.json
@@ -29,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLDivElement.json b/api/HTMLDivElement.json
index 4d1c1095145692..22174312162738 100644
--- a/api/HTMLDivElement.json
+++ b/api/HTMLDivElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLDocument.json b/api/HTMLDocument.json
index 222d4ae59c4ad8..6fff2b8a51f51b 100644
--- a/api/HTMLDocument.json
+++ b/api/HTMLDocument.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLDocument",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#htmldocument",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/HTMLElement.json b/api/HTMLElement.json
index 9fe27676c767d7..d313716dc475c4 100644
--- a/api/HTMLElement.json
+++ b/api/HTMLElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement",
         "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#htmlelement",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "1"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,7 +93,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/393466"
+              "impl_url": "https://crbug.com/41119923"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -107,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,7 +153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -185,7 +192,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +206,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/attributeStyleMap",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-elementcssinlinestyle-attributestylemap",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -220,7 +231,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -242,7 +254,7 @@
                 "version_added": "43",
                 "version_removed": "66",
                 "partial_implementation": true,
-                "notes": "Supported on <code>HTMLInputElement</code> and <code>HTMLTextAreaElement</code> only."
+                "notes": "Supported on `HTMLInputElement` and `HTMLTextAreaElement` only."
               }
             ],
             "chrome_android": "mirror",
@@ -268,11 +280,12 @@
                 "version_added": "≤3",
                 "version_removed": "10.3",
                 "partial_implementation": true,
-                "notes": "Supported on <code>HTMLFormElement</code>, <code>HTMLInputElement</code>, and <code>HTMLTextAreaElement</code> only."
+                "notes": "Supported on `HTMLFormElement`, `HTMLInputElement`, and `HTMLTextAreaElement` only."
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -281,6 +294,40 @@
           }
         }
       },
+      "autocorrect": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/autocorrect",
+          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-autocorrect",
+          "support": {
+            "chrome": {
+              "version_added": false
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "preview"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "14.1"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "autofocus": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/autofocus",
@@ -297,7 +344,7 @@
                 "version_added": "1",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Supported for <code>HTMLButtonElement</code>, <code>HTMLInputElement</code>, <code>HTMLSelectElement</code>, and <code>HTMLTextAreaElement</code>."
+                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
               }
             ],
             "chrome_android": "mirror",
@@ -309,7 +356,7 @@
                 "version_added": "12",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Supported for <code>HTMLButtonElement</code>, <code>HTMLInputElement</code>, <code>HTMLSelectElement</code>, and <code>HTMLTextAreaElement</code>."
+                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
               }
             ],
             "firefox": [
@@ -320,14 +367,14 @@
                 "version_added": "1",
                 "version_removed": "110",
                 "partial_implementation": true,
-                "notes": "Supported for <code>HTMLButtonElement</code>, <code>HTMLInputElement</code>, <code>HTMLSelectElement</code>, and <code>HTMLTextAreaElement</code>."
+                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "Supported for <code>HTMLButtonElement</code>, <code>HTMLInputElement</code>, <code>HTMLSelectElement</code>, and <code>HTMLTextAreaElement</code>."
+              "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
             },
             "oculus": "mirror",
             "opera": [
@@ -338,7 +385,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "66",
                 "partial_implementation": true,
-                "notes": "Supported for <code>HTMLButtonElement</code>, <code>HTMLInputElement</code>, <code>HTMLSelectElement</code>, and <code>HTMLTextAreaElement</code>."
+                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
               }
             ],
             "opera_android": [
@@ -349,7 +396,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "57",
                 "partial_implementation": true,
-                "notes": "Supported for <code>HTMLButtonElement</code>, <code>HTMLInputElement</code>, <code>HTMLSelectElement</code>, and <code>HTMLTextAreaElement</code>."
+                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
               }
             ],
             "safari": [
@@ -360,7 +407,7 @@
                 "version_added": "4",
                 "version_removed": "15.4",
                 "partial_implementation": true,
-                "notes": "Supported for <code>HTMLButtonElement</code>, <code>HTMLInputElement</code>, <code>HTMLSelectElement</code>, and <code>HTMLTextAreaElement</code>."
+                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
               }
             ],
             "safari_ios": "mirror",
@@ -373,9 +420,10 @@
                 "version_added": "≤37",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Supported for <code>HTMLButtonElement</code>, <code>HTMLInputElement</code>, <code>HTMLSelectElement</code>, and <code>HTMLTextAreaElement</code>."
+                "notes": "Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -386,11 +434,12 @@
       },
       "beforetoggle_event": {
         "__compat": {
-          "description": "<code>beforetoggle</code> event",
+          "description": "`beforetoggle` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-beforetoggle",
           "tags": [
-            "web-features:popover"
+            "web-features:popover",
+            "web-features:dialog"
           ],
           "support": {
             "chrome": {
@@ -413,13 +462,92 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "dialog_elements": {
+          "__compat": {
+            "description": "`beforetoggle` event fires at dialog elements",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event",
+            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-beforetoggle",
+            "tags": [
+              "web-features:dialog"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "132"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "133"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "popover_elements": {
+          "__compat": {
+            "description": "`beforetoggle` event fires at popover elements",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event",
+            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-beforetoggle",
+            "tags": [
+              "web-features:popover"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "114"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "125"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "17"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "blur": {
@@ -455,7 +583,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -466,7 +595,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/change_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-change",
@@ -499,7 +628,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -515,7 +645,7 @@
           "support": {
             "chrome": {
               "version_added": "9",
-              "notes": "Before Chrome 19, <code>click()</code> is only defined on buttons and inputs."
+              "notes": "Before Chrome 19, `click()` is only defined on buttons and inputs."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -524,15 +654,15 @@
             "firefox": {
               "version_added": "3",
               "notes": [
-                "Before Firefox 5, <code>click()</code> is only defined on buttons and inputs, and has no effect on text and file inputs.",
-                "Starting in Firefox 75, the <code>click()</code> function works even when the element is not attached to a DOM tree."
+                "Before Firefox 5, `click()` is only defined on buttons and inputs, and has no effect on text and file inputs.",
+                "Starting in Firefox 75, the `click()` function works even when the element is not attached to a DOM tree."
               ]
             },
             "firefox_android": {
               "version_added": "4",
               "notes": [
-                "Before Firefox 5, <code>click()</code> is only defined on buttons and inputs, and has no effect on text and file inputs.",
-                "Starting in Firefox for Android 79, the <code>click()</code> function works even when the element is not attached to a DOM tree."
+                "Before Firefox 5, `click()` is only defined on buttons and inputs, and has no effect on text and file inputs.",
+                "Starting in Firefox for Android 79, the `click()` function works even when the element is not attached to a DOM tree."
               ]
             },
             "ie": {
@@ -549,14 +679,9 @@
               "version_added": "6"
             },
             "safari_ios": "mirror",
-            "samsunginternet_android": {
-              "version_added": "1.0",
-              "notes": "Before Samsung Internet 1.5, <code>click()</code> is only defined on buttons and inputs."
-            },
-            "webview_android": {
-              "version_added": "4.4",
-              "notes": "Before Android WebView 4.4, <code>click()</code> is only defined on buttons and inputs."
-            }
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -565,6 +690,62 @@
           }
         }
       },
+      "command_event": {
+        "__compat": {
+          "description": "`command` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/command_event",
+          "support": {
+            "chrome": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "enable-experimental-web-platform-features",
+                  "value_to_set": "enabled"
+                }
+              ]
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.element.invokers.enabled",
+                  "value_to_set": "true"
+                }
+              ]
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "InvokerAttributesEnabled",
+                  "value_to_set": "true"
+                }
+              ]
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "contentEditable": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/contentEditable",
@@ -598,7 +779,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -608,7 +790,7 @@
         },
         "plaintext-only": {
           "__compat": {
-            "description": "<code>plaintext-only</code> as a value",
+            "description": "`plaintext-only` as a value",
             "support": {
               "chrome": {
                 "version_added": "51"
@@ -628,11 +810,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "5.1"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -646,6 +829,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dataset",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-dataset-dev",
+          "tags": [
+            "web-features:dataset"
+          ],
           "support": {
             "chrome": {
               "version_added": "7"
@@ -675,7 +861,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -688,6 +875,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dir",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-dir",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -717,7 +907,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -728,12 +919,15 @@
       },
       "drag_event": {
         "__compat": {
-          "description": "<code>drag</code> event",
+          "description": "`drag` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/drag_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#ix-handler-ondrag",
             "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-drag"
           ],
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -761,7 +955,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -772,12 +967,15 @@
       },
       "dragend_event": {
         "__compat": {
-          "description": "<code>dragend</code> event",
+          "description": "`dragend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragend_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#ix-handler-ondragend",
             "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragend"
           ],
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -805,7 +1003,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -816,12 +1015,15 @@
       },
       "dragenter_event": {
         "__compat": {
-          "description": "<code>dragenter</code> event",
+          "description": "`dragenter` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragenter_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#ix-handler-ondragenter",
             "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragenter"
           ],
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -849,7 +1051,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -860,7 +1063,7 @@
       },
       "dragexit_event": {
         "__compat": {
-          "description": "<code>dragexit</code> event",
+          "description": "`dragexit` event",
           "support": {
             "chrome": {
               "version_added": false
@@ -889,7 +1092,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -902,6 +1106,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/draggable",
           "spec_url": "https://html.spec.whatwg.org/multipage/dnd.html#dom-draggable",
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -931,7 +1138,8 @@
               "version_added": "4"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -942,12 +1150,15 @@
       },
       "dragleave_event": {
         "__compat": {
-          "description": "<code>dragleave</code> event",
+          "description": "`dragleave` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragleave_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#ix-handler-ondragleave",
             "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragleave"
           ],
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -975,7 +1186,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -986,12 +1198,15 @@
       },
       "dragover_event": {
         "__compat": {
-          "description": "<code>dragover</code> event",
+          "description": "`dragover` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragover_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#ix-handler-ondragover",
             "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragover"
           ],
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1019,7 +1234,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1030,12 +1246,15 @@
       },
       "dragstart_event": {
         "__compat": {
-          "description": "<code>dragstart</code> event",
+          "description": "`dragstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/dragstart_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#ix-handler-ondragstart",
             "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-dragstart"
           ],
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1063,7 +1282,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1074,12 +1294,15 @@
       },
       "drop_event": {
         "__compat": {
-          "description": "<code>drop</code> event",
+          "description": "`drop` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/drop_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#ix-handler-ondrop",
             "https://html.spec.whatwg.org/multipage/dnd.html#event-dnd-drop"
           ],
+          "tags": [
+            "web-features:draganddrop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1107,7 +1330,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1130,7 +1354,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1904161"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1140,11 +1365,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/269922"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1178,7 +1405,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1189,7 +1417,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/error_event",
           "spec_url": "https://w3c.github.io/uievents/#event-type-error",
           "support": {
@@ -1219,7 +1447,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1258,10 +1487,12 @@
               "version_added": "3"
             },
             "safari_ios": {
-              "version_added": "1"
+              "version_added": "1",
+              "notes": "If there's no hardware keyboard connected and the user has not yet interacted with the page, then calling `focus()` on an `&lt;input&gt;` element has no effect (for example, the element does not match the `:focus` selector)."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1271,7 +1502,7 @@
         },
         "options_focusVisible_parameter": {
           "__compat": {
-            "description": "<code>options.focusVisible</code> parameter",
+            "description": "`options.focusVisible` parameter",
             "support": {
               "chrome": {
                 "version_added": false
@@ -1293,7 +1524,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1304,14 +1536,14 @@
         },
         "options_preventScroll_parameter": {
           "__compat": {
-            "description": "<code>options.preventScroll</code> parameter",
+            "description": "`options.preventScroll` parameter",
             "support": {
               "chrome": {
                 "version_added": "64"
               },
               "chrome_android": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/953169"
+                "impl_url": "https://crbug.com/41453122"
               },
               "edge": {
                 "version_added": "17"
@@ -1336,7 +1568,8 @@
                 "version_added": "15.5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1350,6 +1583,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/hidden",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-hidden",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -1379,7 +1615,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1416,7 +1653,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1453,19 +1691,63 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "ignores_find_in_page": {
+          "__compat": {
+            "description": "Element is ignored for the purposes of find-in-page.",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/inert",
+            "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-inert",
+            "tags": [
+              "web-features:inert"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "124"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "120"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false,
+                "impl_url": "https://webkit.org/b/269909"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "innerText": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/innerText",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#the-innertext-idl-attribute",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1495,7 +1777,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1531,7 +1814,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1540,60 +1824,6 @@
           }
         }
       },
-      "invoke_event": {
-        "__compat": {
-          "description": "<code>invoke</code> event",
-          "support": {
-            "chrome": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "enable-experimental-web-platform-features",
-                  "value_to_set": "enabled"
-                }
-              ]
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "dom.element.invokers.enabled",
-                  "value_to_set": "true"
-                }
-              ]
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "InvokerAttributesEnabled",
-                  "value_to_set": "true"
-                }
-              ]
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
       "isContentEditable": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/isContentEditable",
@@ -1627,7 +1857,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1669,7 +1900,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1706,12 +1938,13 @@
                 "version_added": "10",
                 "version_removed": "15.4",
                 "partial_implementation": true,
-                "notes": "The property is defined only for its useful elements: <code>&lt;link&gt;</code>, <code>&lt;script&gt;</code>, and <code>&lt;style&gt;</code>; it is undefined for all other elements."
+                "notes": "The property is defined only for its useful elements: `&lt;link&gt;`, `&lt;script&gt;`, and `&lt;style&gt;`; it is undefined for all other elements."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1753,7 +1986,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1795,7 +2029,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1837,7 +2072,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1879,7 +2115,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1921,7 +2158,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1934,6 +2172,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/outerText",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-outertext",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1963,7 +2204,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1998,9 +2240,14 @@
             "safari": {
               "version_added": "17"
             },
-            "safari_ios": "mirror",
+            "safari_ios": {
+              "version_added": "17",
+              "partial_implementation": true,
+              "notes": "On iOS and iPadOS, popovers are not dismissed when the user taps outside of the popover area, see [bug 267688](https://webkit.org/b/267688)."
+            },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2037,7 +2284,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2079,7 +2327,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2092,6 +2341,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/style",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-elementcssinlinestyle-style",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2121,7 +2373,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2149,7 +2402,7 @@
               {
                 "version_added": "12",
                 "partial_implementation": true,
-                "notes": "Returns incorrect value for elements without an explicit tabindex attribute. See <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/4365703/'>issue 4365703</a> for details."
+                "notes": "Returns incorrect value for elements without an explicit tabindex attribute. See [issue 4365703](https://developer.microsoft.com/microsoft-edge/platform/issues/4365703/) for details."
               }
             ],
             "firefox": {
@@ -2159,7 +2412,7 @@
             "ie": {
               "version_added": "5.5",
               "partial_implementation": true,
-              "notes": "Returns incorrect value for elements without an explicit tabindex attribute. See <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/4365703/'>issue 4365703</a> for details."
+              "notes": "Returns incorrect value for elements without an explicit tabindex attribute. See [issue 4365703](https://developer.microsoft.com/microsoft-edge/platform/issues/4365703/) for details."
             },
             "oculus": "mirror",
             "opera": {
@@ -2173,7 +2426,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2215,7 +2469,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2226,20 +2481,22 @@
       },
       "toggle_event": {
         "__compat": {
-          "description": "<code>toggle</code> event",
+          "description": "`toggle` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/toggle_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-toggle",
           "tags": [
-            "web-features:popover"
+            "web-features:popover",
+            "web-features:dialog",
+            "web-features:details"
           ],
           "support": {
             "chrome": {
-              "version_added": "114"
+              "version_added": "36"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "125"
+              "version_added": "49"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2249,17 +2506,135 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "17"
+              "version_added": "10.1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "details_elements": {
+          "__compat": {
+            "description": "`toggle` event fires at details elements",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/toggle_event",
+            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-toggle",
+            "tags": [
+              "web-features:details"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "36"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "49"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "10.1"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "dialog_elements": {
+          "__compat": {
+            "description": "`toggle` event fires at dialog elements",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/toggle_event",
+            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-toggle",
+            "tags": [
+              "web-features:dialog"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "132"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "133"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "popover_elements": {
+          "__compat": {
+            "description": "`toggle` event fires at popover elements",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/toggle_event",
+            "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-toggle",
+            "tags": [
+              "web-features:popover"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "114"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "125"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "17"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "togglePopover": {
@@ -2290,7 +2665,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2300,7 +2676,7 @@
         },
         "returns_boolean": {
           "__compat": {
-            "description": "Returns <code>true</code> or <code>false</code>",
+            "description": "Returns `true` or `false`",
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -2322,7 +2698,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2360,7 +2737,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2373,6 +2751,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLElement/virtualKeyboardPolicy",
           "spec_url": "https://w3c.github.io/virtual-keyboard/#dom-elementcontenteditable-virtualkeyboardpolicy",
+          "tags": [
+            "web-features:virtual-keyboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -2380,7 +2761,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1730568"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2390,11 +2772,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/230225"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2406,6 +2790,9 @@
       "writingSuggestions": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-writingsuggestions",
+          "tags": [
+            "web-features:writingsuggestions"
+          ],
           "support": {
             "chrome": {
               "version_added": "124"
@@ -2428,7 +2815,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLEmbedElement.json b/api/HTMLEmbedElement.json
index afbe775d58ea8c..84d9686056a411 100644
--- a/api/HTMLEmbedElement.json
+++ b/api/HTMLEmbedElement.json
@@ -39,7 +39,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -77,7 +78,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,6 +90,7 @@
       },
       "getSVGDocument": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLEmbedElement/getSVGDocument",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content-other.html#dom-media-getsvgdocument-dev",
           "tags": [
             "web-features:embed"
@@ -121,7 +124,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -166,7 +170,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,7 +212,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -252,7 +258,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -263,6 +270,7 @@
       },
       "type": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLEmbedElement/type",
           "spec_url": "https://html.spec.whatwg.org/multipage/iframe-embed-object.html#dom-embed-type",
           "tags": [
             "web-features:embed"
@@ -294,7 +302,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,7 +348,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLFencedFrameElement.json b/api/HTMLFencedFrameElement.json
index 2aea7e0cbdd6a2..57d83c5b0d12d6 100644
--- a/api/HTMLFencedFrameElement.json
+++ b/api/HTMLFencedFrameElement.json
@@ -4,9 +4,12 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFencedFrameElement",
         "spec_url": "https://wicg.github.io/fenced-frame/#htmlfencedframeelement",
+        "tags": [
+          "web-features:fencedframe"
+        ],
         "support": {
           "chrome": {
-            "version_added": "117"
+            "version_added": "115"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +41,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFencedFrameElement/allow",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-htmlfencedframeelement-allow",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,9 +79,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFencedFrameElement/config",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-htmlfencedframeelement-config",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,9 +117,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFencedFrameElement/height",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-htmlfencedframeelement-height",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -126,7 +141,45 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "sandbox": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/fenced-frame/#element-attrdef-fencedframe-sandbox",
+          "tags": [
+            "web-features:fencedframe"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "115"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,9 +192,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFencedFrameElement/width",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-htmlfencedframeelement-width",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -160,7 +216,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/HTMLFieldSetElement.json b/api/HTMLFieldSetElement.json
index 63fe6b4152e84b..d80a3be31d31ec 100644
--- a/api/HTMLFieldSetElement.json
+++ b/api/HTMLFieldSetElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +47,7 @@
       },
       "checkValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/checkValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-checkvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -81,7 +83,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,6 +95,7 @@
       },
       "disabled": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/disabled",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-fieldset-disabled",
           "tags": [
             "web-features:fieldset"
@@ -123,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,6 +139,7 @@
       },
       "elements": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/elements",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-fieldset-elements-dev",
           "tags": [
             "web-features:fieldset"
@@ -167,7 +173,8 @@
             "samsunginternet_android": {
               "version_added": "1.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,7 +184,7 @@
         },
         "type_HTMLCollection": {
           "__compat": {
-            "description": "Returns an <code>HTMLCollection</code>",
+            "description": "Returns an `HTMLCollection`",
             "tags": [
               "web-features:fieldset"
             ],
@@ -204,7 +211,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -216,6 +224,7 @@
       },
       "form": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/form",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fae-form-dev",
           "tags": [
             "web-features:fieldset"
@@ -249,7 +258,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -260,6 +270,7 @@
       },
       "name": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/name",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-name",
           "tags": [
             "web-features:fieldset"
@@ -289,7 +300,8 @@
             "samsunginternet_android": {
               "version_added": "1.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -300,6 +312,7 @@
       },
       "reportValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/reportValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-reportvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -329,7 +342,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -340,6 +354,7 @@
       },
       "setCustomValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/setCustomValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-setcustomvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -347,7 +362,7 @@
           "support": {
             "chrome": {
               "version_added": "4",
-              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see <a href='https://crbug.com/828757'>bug 828757</a>."
+              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see [bug 41380670](https://crbug.com/41380670)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -376,7 +391,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -387,6 +403,7 @@
       },
       "type": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/type",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-fieldset-type-dev",
           "tags": [
             "web-features:fieldset"
@@ -416,7 +433,8 @@
             "samsunginternet_android": {
               "version_added": "1.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -427,6 +445,7 @@
       },
       "validationMessage": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/validationMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-validationmessage-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -462,7 +481,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -473,6 +493,7 @@
       },
       "validity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/validity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-constraint-validation-api:dom-cva-validity",
           "tags": [
             "web-features:constraint-validation"
@@ -508,7 +529,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -519,6 +541,7 @@
       },
       "willValidate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/willValidate",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-willvalidate-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -554,7 +577,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLFontElement.json b/api/HTMLFontElement.json
index ec2330b5293f40..ca5db984df1c07 100644
--- a/api/HTMLFontElement.json
+++ b/api/HTMLFontElement.json
@@ -33,7 +33,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -74,7 +75,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,7 +118,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,7 +161,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLFormControlsCollection.json b/api/HTMLFormControlsCollection.json
index d0a8e1c8c4dbc3..b3893757d043f9 100644
--- a/api/HTMLFormControlsCollection.json
+++ b/api/HTMLFormControlsCollection.json
@@ -27,13 +27,14 @@
             "version_added": "≤12.1"
           },
           "safari": {
-            "version_added": "≤4"
+            "version_added": "3"
           },
           "safari_ios": {
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -61,7 +62,7 @@
                 "version_added": "27",
                 "version_removed": "33",
                 "partial_implementation": true,
-                "notes": "Returned a <a href='https://developer.mozilla.org/docs/Web/API/NodeList'><code>NodeList</code></a> instead of a <a href='https://developer.mozilla.org/docs/Web/API/RadioNodeList'><code>RadioNodeList</code></a>."
+                "notes": "Returned a [`NodeList`](https://developer.mozilla.org/docs/Web/API/NodeList) instead of a [`RadioNodeList`](https://developer.mozilla.org/docs/Web/API/RadioNodeList)."
               }
             ],
             "firefox_android": "mirror",
@@ -76,13 +77,14 @@
               "version_added": "≤12.1"
             },
             "safari": {
-              "version_added": "≤4"
+              "version_added": "3"
             },
             "safari_ios": {
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLFormElement.json b/api/HTMLFormElement.json
index 974433cc0b92a0..6200cc554ef31b 100644
--- a/api/HTMLFormElement.json
+++ b/api/HTMLFormElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement",
         "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#htmlformelement",
+        "tags": [
+          "web-features:form"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/acceptCharset",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-acceptcharset",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -74,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/action",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-action",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -116,7 +127,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,7 +139,11 @@
       },
       "autocomplete": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/autocomplete",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-autocomplete",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "14"
@@ -151,7 +167,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,6 +179,7 @@
       },
       "checkValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/checkValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-checkvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -197,7 +215,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -210,6 +229,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/elements",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-elements-dev",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -239,7 +261,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -252,6 +275,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/encoding",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-encoding",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -281,7 +307,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -294,6 +321,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/enctype",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-enctype",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -323,7 +353,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -334,9 +365,12 @@
       },
       "formdata_event": {
         "__compat": {
-          "description": "<code>formdata</code> event",
+          "description": "`formdata` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/formdata_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-formdata",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -358,7 +392,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -371,6 +406,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/length",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-length-dev",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -400,7 +438,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -413,6 +452,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/method",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-method",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -442,7 +484,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -455,6 +498,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/name",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-name",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -484,7 +530,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -495,7 +542,11 @@
       },
       "noValidate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/noValidate",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-novalidate",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -527,7 +578,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -539,6 +591,9 @@
       "rel": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-rel",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -560,7 +615,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -572,6 +628,9 @@
       "relList": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-rellist",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -593,7 +652,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -632,7 +692,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -643,9 +704,12 @@
       },
       "requestSubmit": {
         "__compat": {
-          "description": "<code>requestSubmit()</code>",
+          "description": "`requestSubmit()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/requestSubmit",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-requestsubmit-dev",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -667,7 +731,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -680,6 +745,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/reset",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-reset-dev",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -709,7 +777,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -720,9 +789,12 @@
       },
       "reset_event": {
         "__compat": {
-          "description": "<code>reset</code> event",
+          "description": "`reset` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/reset_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-reset",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -754,7 +826,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -767,6 +840,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/submit",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-form-submit-dev",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -796,7 +872,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -807,12 +884,15 @@
       },
       "submit_event": {
         "__compat": {
-          "description": "<code>submit</code> event",
+          "description": "`submit` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/submit_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-submit",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onsubmit"
           ],
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -842,7 +922,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -855,6 +936,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLFormElement/target",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-target",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -884,7 +968,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLFrameElement.json b/api/HTMLFrameElement.json
index ef5de886d20dc7..68b9899aa55a9f 100644
--- a/api/HTMLFrameElement.json
+++ b/api/HTMLFrameElement.json
@@ -32,7 +32,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +73,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +115,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,7 +157,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,7 +199,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -236,7 +241,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -277,7 +283,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -318,7 +325,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -359,7 +367,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -400,7 +409,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -441,7 +451,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLFrameSetElement.json b/api/HTMLFrameSetElement.json
index d9ae1f5b4a4585..36f9bd00490385 100644
--- a/api/HTMLFrameSetElement.json
+++ b/api/HTMLFrameSetElement.json
@@ -33,7 +33,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,7 +74,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -114,7 +116,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLHRElement.json b/api/HTMLHRElement.json
index 7fafef09fd1403..9669437bbab324 100644
--- a/api/HTMLHRElement.json
+++ b/api/HTMLHRElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -146,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -185,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLHeadElement.json b/api/HTMLHeadElement.json
index 67bdc29151d91d..9b5b944bb4668b 100644
--- a/api/HTMLHeadElement.json
+++ b/api/HTMLHeadElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLHeadingElement.json b/api/HTMLHeadingElement.json
index be74424d8a33f9..8e4a4bc1bbdde7 100644
--- a/api/HTMLHeadingElement.json
+++ b/api/HTMLHeadingElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLHtmlElement.json b/api/HTMLHtmlElement.json
index cce42d0ea69b39..5a4b4ae32a55e8 100644
--- a/api/HTMLHtmlElement.json
+++ b/api/HTMLHtmlElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLIFrameElement.json b/api/HTMLIFrameElement.json
index 40919335462c1f..a1f269baccc82b 100644
--- a/api/HTMLIFrameElement.json
+++ b/api/HTMLIFrameElement.json
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -70,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,7 +113,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -148,7 +151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,7 +205,8 @@
               ]
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,7 +246,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +280,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -319,7 +326,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -364,7 +372,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -401,7 +410,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -414,6 +424,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/csp",
           "spec_url": "https://w3c.github.io/webappsec-cspee/#ref-for-dom-htmliframeelement-csp",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -435,7 +448,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -475,7 +489,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -516,7 +531,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -527,6 +543,7 @@
       },
       "getSVGDocument": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLIframeElement/getSVGDocument",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content-other.html#dom-media-getsvgdocument-dev",
           "tags": [
             "web-features:iframe"
@@ -560,7 +577,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -605,7 +623,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -644,7 +663,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -685,7 +705,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -726,7 +747,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -767,7 +789,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -812,7 +835,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -845,7 +869,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -889,7 +914,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -900,6 +926,9 @@
         "no-referrer-when-downgrade": {
           "__compat": {
             "description": "no-referrer-when-downgrade",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -922,7 +951,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -934,6 +964,9 @@
         "origin-when-cross-origin": {
           "__compat": {
             "description": "origin-when-cross-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -956,7 +989,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -968,6 +1002,9 @@
         "unsafe-url": {
           "__compat": {
             "description": "unsafe-url",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -990,7 +1027,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1007,7 +1045,7 @@
           "support": {
             "chrome": {
               "version_added": "5",
-              "notes": "Before Chrome 50, this property returned the deprecated child <code>DOMSettableTokenList</code> instead of <code>DOMTokenList</code>."
+              "notes": "Before Chrome 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -1015,7 +1053,7 @@
             },
             "firefox": {
               "version_added": "17",
-              "notes": "Previously, the type of <code>sandbox</code> was a <code>DOMString</code> instead of a <code>DOMSettableTokenList</code>. This has been fixed with Firefox 29. Other browsers may still implement the property as <code>DOMString</code> since it was a late change in the specification."
+              "notes": "Previously, the type of `sandbox` was a `DOMString` instead of a `DOMSettableTokenList`. This has been fixed with Firefox 29. Other browsers may still implement the property as `DOMString` since it was a late change in the specification."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1033,8 +1071,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37",
-              "notes": "Before WebView 50, this property returned the deprecated child <code>DOMSettableTokenList</code> instead of <code>DOMTokenList</code>."
-            }
+              "notes": "Before WebView 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1075,7 +1114,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1087,6 +1127,9 @@
       "sharedStorageWritable": {
         "__compat": {
           "spec_url": "https://wicg.github.io/shared-storage/#ref-for-dom-htmlsharedstoragewritableelementutils-sharedstoragewritable",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "124"
@@ -1108,7 +1151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1153,7 +1197,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1166,6 +1211,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/srcdoc",
           "spec_url": "https://html.spec.whatwg.org/multipage/iframe-embed-object.html#dom-iframe-srcdoc",
+          "tags": [
+            "web-features:iframe-srcdoc"
+          ],
           "support": {
             "chrome": {
               "version_added": "20"
@@ -1187,7 +1235,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1232,7 +1281,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLImageElement.json b/api/HTMLImageElement.json
index 4fd4f8f32df86e..4b4fd191b52d61 100644
--- a/api/HTMLImageElement.json
+++ b/api/HTMLImageElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,7 +45,7 @@
       },
       "Image": {
         "__compat": {
-          "description": "<code>Image()</code> constructor",
+          "description": "`Image()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLImageElement/Image",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-image-dev",
           "tags": [
@@ -77,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -164,7 +167,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -179,7 +183,7 @@
           "spec_url": "https://wicg.github.io/attribution-reporting-api/#dom-htmlattributionsrcelementutils-attributionsrc",
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "125"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -198,7 +202,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -240,7 +245,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -270,7 +276,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5.5",
-              "notes": "IE reports <code>false</code> for broken images."
+              "notes": "IE reports `false` for broken images."
             },
             "oculus": "mirror",
             "opera": {
@@ -286,7 +292,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -329,7 +336,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -365,7 +373,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -376,7 +385,7 @@
       },
       "decode": {
         "__compat": {
-          "description": "<code>decode()</code>",
+          "description": "`decode()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLImageElement/decode",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-decode-dev",
           "tags": [
@@ -403,7 +412,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -440,7 +450,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -470,7 +481,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132",
+              "impl_url": "https://bugzil.la/1797715"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -484,7 +496,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -529,7 +542,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -571,7 +585,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -616,7 +631,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -653,7 +669,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -695,7 +712,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -734,7 +752,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -776,7 +795,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -821,7 +841,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -866,7 +887,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -910,7 +932,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -921,6 +944,9 @@
         "no-referrer-when-downgrade": {
           "__compat": {
             "description": "no-referrer-when-downgrade",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -943,7 +969,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -955,6 +982,9 @@
         "origin-when-cross-origin": {
           "__compat": {
             "description": "origin-when-cross-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -977,7 +1007,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -989,6 +1020,9 @@
         "unsafe-url": {
           "__compat": {
             "description": "unsafe-url",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -1011,7 +1045,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1024,6 +1059,9 @@
       "sharedStorageWritable": {
         "__compat": {
           "spec_url": "https://wicg.github.io/shared-storage/#ref-for-dom-htmlsharedstoragewritableelementutils-sharedstoragewritable",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "124"
@@ -1045,7 +1083,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1081,7 +1120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1091,7 +1131,7 @@
         },
         "auto": {
           "__compat": {
-            "description": "<code>auto</code> value",
+            "description": "`auto` value",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLImageElement/sizes",
             "spec_url": "https://html.spec.whatwg.org/multipage/images.html#valdef-sizes-auto",
             "support": {
@@ -1117,7 +1157,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1163,7 +1204,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1199,7 +1241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1244,7 +1287,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1286,7 +1330,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1331,7 +1376,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1379,7 +1425,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1427,7 +1474,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLInputElement.json b/api/HTMLInputElement.json
index 1b3c4c6695bff8..b9c7b47103a05f 100644
--- a/api/HTMLInputElement.json
+++ b/api/HTMLInputElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement",
         "spec_url": "https://html.spec.whatwg.org/multipage/input.html#htmlinputelement",
+        "tags": [
+          "web-features:input"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,7 +47,11 @@
       },
       "accept": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/accept",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-accept",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -71,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,9 +129,50 @@
           }
         }
       },
+      "alpha": {
+        "__compat": {
+          "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-alpha",
+          "tags": [
+            "web-features:input"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": false
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "preview"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "alt": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/alt",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-alt",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -149,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -160,7 +212,11 @@
       },
       "autocomplete": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/autocomplete",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-autocomplete",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "14"
@@ -188,7 +244,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -199,11 +256,15 @@
       },
       "cancel_event": {
         "__compat": {
-          "description": "<code>cancel</code> event",
+          "description": "`cancel` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/cancel_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-cancel",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-oncancel"
           ],
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "113"
@@ -225,7 +286,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -236,6 +298,7 @@
       },
       "capture": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/capture",
           "spec_url": "https://w3c.github.io/html-media-capture/#dom-htmlinputelement-capture",
           "tags": [
             "web-features:html-media-capture"
@@ -267,7 +330,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -278,7 +342,11 @@
       },
       "checked": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/checked",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-checked",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -306,7 +374,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -353,7 +422,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -362,9 +432,50 @@
           }
         }
       },
+      "colorSpace": {
+        "__compat": {
+          "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-colorspace",
+          "tags": [
+            "web-features:input"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": false
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "preview"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "defaultChecked": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/defaultChecked",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-defaultchecked",
+          "tags": [
+            "web-features:input-checkbox"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -392,7 +503,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -403,7 +515,11 @@
       },
       "defaultValue": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/defaultValue",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-defaultvalue",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -431,7 +547,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -471,7 +588,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -484,6 +602,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/disabled",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-disabled",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -511,7 +632,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -524,6 +646,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/files",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-files-dev",
+          "tags": [
+            "web-features:input-file"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -557,7 +682,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -568,7 +694,11 @@
       },
       "form": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/form",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fae-form-dev",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -596,7 +726,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -607,7 +738,11 @@
       },
       "formAction": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formAction",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formaction",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -637,7 +772,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -648,7 +784,11 @@
       },
       "formEnctype": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formEnctype",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formenctype",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -678,7 +818,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -689,7 +830,11 @@
       },
       "formMethod": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formMethod",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formmethod",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -719,7 +864,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -730,7 +876,11 @@
       },
       "formNoValidate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formNoValidate",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formnovalidate",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -762,7 +912,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -773,7 +924,11 @@
       },
       "formTarget": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formTarget",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-formtarget",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -803,7 +958,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -814,7 +970,11 @@
       },
       "height": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/height",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-height",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "21"
@@ -842,7 +1002,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -877,7 +1038,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -888,7 +1050,11 @@
       },
       "indeterminate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/indeterminate",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-indeterminate",
+          "tags": [
+            "web-features:input-checkbox"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -918,7 +1084,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -929,12 +1096,15 @@
       },
       "invalid_event": {
         "__compat": {
-          "description": "<code>invalid</code> event",
+          "description": "`invalid` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/invalid_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-invalid",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-oninvalid"
           ],
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -970,7 +1140,8 @@
             },
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -983,6 +1154,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/labels",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-lfe-labels-dev",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -1012,7 +1186,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1023,7 +1198,11 @@
       },
       "list": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/list",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-list-dev",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "20"
@@ -1053,7 +1232,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1064,7 +1244,11 @@
       },
       "max": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/max",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-max",
+          "tags": [
+            "web-features:input-number"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -1096,7 +1280,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1107,7 +1292,11 @@
       },
       "maxLength": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/maxLength",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-maxlength",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1135,7 +1324,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1146,7 +1336,11 @@
       },
       "min": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/min",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-min",
+          "tags": [
+            "web-features:input-number"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -1178,7 +1372,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1189,7 +1384,11 @@
       },
       "minLength": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/minLength",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-minlength",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "40"
@@ -1213,7 +1412,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1226,6 +1426,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/multiple",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-multiple",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -1255,7 +1458,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1266,7 +1470,11 @@
       },
       "name": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/name",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-name",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1294,7 +1502,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1305,7 +1514,11 @@
       },
       "pattern": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/pattern",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-pattern",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -1337,7 +1550,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1348,7 +1562,11 @@
       },
       "placeholder": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/placeholder",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-placeholder",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -1378,7 +1596,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1415,7 +1634,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1452,7 +1672,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1463,7 +1684,11 @@
       },
       "readOnly": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/readOnly",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-readonly",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1491,7 +1716,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1532,7 +1758,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1543,7 +1770,11 @@
       },
       "required": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/required",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-required",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -1575,7 +1806,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1586,7 +1818,7 @@
       },
       "search_event": {
         "__compat": {
-          "description": "<code>search</code> event",
+          "description": "`search` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/search_event",
           "support": {
             "chrome": {
@@ -1610,7 +1842,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1623,6 +1856,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/select",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-select",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1650,7 +1886,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1661,12 +1898,15 @@
       },
       "select_event": {
         "__compat": {
-          "description": "<code>select</code> event",
+          "description": "`select` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/select_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-select",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onselect"
           ],
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1694,7 +1934,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1705,16 +1946,19 @@
       },
       "selectionchange_event": {
         "__compat": {
-          "description": "<code>selectionchange</code> event",
+          "description": "`selectionchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/selectionchange_event",
           "spec_url": [
             "https://w3c.github.io/selection-api/#selectionchange-event",
             "https://w3c.github.io/selection-api/#dom-globaleventhandlers-onselectionchange"
           ],
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "notes": "A <code>selectionchange</code> event is fired on <code>Document</code>, see <a href='https://developer.mozilla.org/docs/Web/API/Document/selectionchange_event'><code>Document</code>'s <code>selectionchange</code> event</a>. See <a href='https://crbug.com/1327098'>bug 1327098</a> for firing the event on <code>&lt;input&gt;</code> elements."
+              "notes": "A `selectionchange` event is fired on `Document`, see [`Document`'s `selectionchange` event](https://developer.mozilla.org/docs/Web/API/Document/selectionchange_event). See [bug 40840956](https://crbug.com/40840956) for firing the event on `&lt;input&gt;` elements."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -1734,7 +1978,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1747,6 +1992,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/selectionDirection",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-selectiondirection-dev",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "15"
@@ -1774,7 +2022,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1787,6 +2036,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/selectionEnd",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-selectionend",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1814,7 +2066,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1827,6 +2080,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/selectionStart",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-selectionstart",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1854,7 +2110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1873,7 +2130,7 @@
           "support": {
             "chrome": {
               "version_added": "4",
-              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see <a href='https://crbug.com/828757'>bug 828757</a>."
+              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see [bug 41380670](https://crbug.com/41380670)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -1902,7 +2159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1915,6 +2173,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/setRangeText",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-setrangetext-dev",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -1936,7 +2197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1949,6 +2211,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/setSelectionRange",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-setselectionrange-dev",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1978,7 +2243,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2015,7 +2281,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2025,7 +2292,7 @@
         },
         "autocomplete_input": {
           "__compat": {
-            "description": "<code>autocomplete</code> input",
+            "description": "`autocomplete` input",
             "tags": [
               "web-features:show-picker-input"
             ],
@@ -2051,7 +2318,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2062,7 +2330,7 @@
         },
         "color_input": {
           "__compat": {
-            "description": "<code>color</code> input",
+            "description": "`color` input",
             "tags": [
               "web-features:show-picker-input"
             ],
@@ -2089,7 +2357,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2100,7 +2369,7 @@
         },
         "datalist_input": {
           "__compat": {
-            "description": "<code>datalist</code> input",
+            "description": "`datalist` input",
             "tags": [
               "web-features:show-picker-input"
             ],
@@ -2128,7 +2397,8 @@
                 "impl_url": "https://webkit.org/b/261703"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2139,7 +2409,7 @@
         },
         "date_input": {
           "__compat": {
-            "description": "<code>date</code> input",
+            "description": "`date` input",
             "tags": [
               "web-features:show-picker-input"
             ],
@@ -2167,7 +2437,8 @@
                 "impl_url": "https://webkit.org/b/261703"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2178,7 +2449,7 @@
         },
         "datetime_local_input": {
           "__compat": {
-            "description": "<code>datetime-local</code> input",
+            "description": "`datetime-local` input",
             "tags": [
               "web-features:show-picker-input"
             ],
@@ -2206,7 +2477,8 @@
                 "impl_url": "https://webkit.org/b/261703"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2217,7 +2489,7 @@
         },
         "file_input": {
           "__compat": {
-            "description": "<code>file</code> input",
+            "description": "`file` input",
             "tags": [
               "web-features:show-picker-input"
             ],
@@ -2242,7 +2514,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2253,7 +2526,7 @@
         },
         "month_input": {
           "__compat": {
-            "description": "<code>month</code> input",
+            "description": "`month` input",
             "tags": [
               "web-features:show-picker-input"
             ],
@@ -2287,7 +2560,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2298,7 +2572,7 @@
         },
         "time_input": {
           "__compat": {
-            "description": "<code>time</code> input",
+            "description": "`time` input",
             "tags": [
               "web-features:show-picker-input"
             ],
@@ -2328,7 +2602,8 @@
                 "impl_url": "https://webkit.org/b/261703"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2339,7 +2614,7 @@
         },
         "week_input": {
           "__compat": {
-            "description": "<code>week</code> input",
+            "description": "`week` input",
             "tags": [
               "web-features:show-picker-input"
             ],
@@ -2373,7 +2648,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2385,7 +2661,11 @@
       },
       "size": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/size",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-size",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2413,7 +2693,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2424,7 +2705,11 @@
       },
       "src": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/src",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-src",
+          "tags": [
+            "web-features:input-image"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2452,7 +2737,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2463,7 +2749,11 @@
       },
       "step": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/step",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-step",
+          "tags": [
+            "web-features:input-number"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -2495,7 +2785,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2508,6 +2799,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/stepDown",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-stepdown-dev",
+          "tags": [
+            "web-features:input-number"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -2519,7 +2813,7 @@
             "firefox": {
               "version_added": "16",
               "partial_implementation": true,
-              "notes": "Does not have a specific UI. There are still differences with the latest spec; see <a href='https://bugzil.la/835773'>bug 835773</a>."
+              "notes": "Does not have a specific UI. There are still differences with the latest spec; see [bug 835773](https://bugzil.la/835773)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2541,7 +2835,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2554,6 +2849,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/stepUp",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-stepup-dev",
+          "tags": [
+            "web-features:input-number"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -2565,7 +2863,7 @@
             "firefox": {
               "version_added": "16",
               "partial_implementation": true,
-              "notes": "Does not have a specific UI. There are still differences with the latest spec; see <a href='https://bugzil.la/835773'>bug 835773</a>."
+              "notes": "Does not have a specific UI. There are still differences with the latest spec; see [bug 835773](https://bugzil.la/835773)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2587,7 +2885,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2600,6 +2899,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/type",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-type",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2627,7 +2929,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2666,7 +2969,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2677,6 +2981,7 @@
       },
       "validationMessage": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/validationMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-validationmessage-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -2712,7 +3017,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2723,6 +3029,7 @@
       },
       "validity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/validity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-constraint-validation-api:dom-cva-validity",
           "tags": [
             "web-features:constraint-validation"
@@ -2758,7 +3065,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2769,7 +3077,11 @@
       },
       "value": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/value",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-value",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2797,7 +3109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2808,7 +3121,11 @@
       },
       "valueAsDate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/valueAsDate",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-valueasdate-dev",
+          "tags": [
+            "web-features:input-date-time"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -2846,7 +3163,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2857,7 +3175,11 @@
       },
       "valueAsNumber": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/valueAsNumber",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-valueasnumber-dev",
+          "tags": [
+            "web-features:input-number"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -2889,7 +3211,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2906,7 +3229,18 @@
             "chrome": {
               "version_added": "7"
             },
-            "chrome_android": "mirror",
+            "chrome_android": [
+              {
+                "version_added": "131",
+                "partial_implementation": true,
+                "notes": "In Chrome for Android 131, if a user selects a directory, the browser crashes (see [bug 376834374](https://crbug.com/376834374))."
+              },
+              {
+                "version_added": "18",
+                "partial_implementation": true,
+                "notes": "The property reflects the attribute, but users cannot choose a directory, only individual files (see [bug 40248532](https://crbug.com/40248532)."
+              }
+            ],
             "edge": {
               "version_added": "13"
             },
@@ -2925,9 +3259,14 @@
             "safari": {
               "version_added": "11.1"
             },
-            "safari_ios": "mirror",
+            "safari_ios": {
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/271705",
+              "notes": "The property can be set, but has no effect."
+            },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2965,7 +3304,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2976,7 +3316,11 @@
       },
       "width": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/width",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-width",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "21"
@@ -3004,7 +3348,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3015,6 +3360,7 @@
       },
       "willValidate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/willValidate",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-willvalidate-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -3050,7 +3396,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLLIElement.json b/api/HTMLLIElement.json
index 74352b4c2d7eee..a97fcd3360447a 100644
--- a/api/HTMLLIElement.json
+++ b/api/HTMLLIElement.json
@@ -35,7 +35,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,6 +86,7 @@
       },
       "value": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLLIElement/value",
           "spec_url": "https://html.spec.whatwg.org/multipage/grouping-content.html#dom-li-value",
           "tags": [
             "web-features:list-elements"
@@ -115,7 +118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLLabelElement.json b/api/HTMLLabelElement.json
index 380584d3bd5499..2f6894cb5e56b9 100644
--- a/api/HTMLLabelElement.json
+++ b/api/HTMLLabelElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLLabelElement",
         "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#htmllabelelement",
+        "tags": [
+          "web-features:label"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/control",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-label-control-dev",
+          "tags": [
+            "web-features:label"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -76,7 +83,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/form",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-label-form-dev",
+          "tags": [
+            "web-features:label"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -118,7 +129,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,6 +143,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/htmlFor",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#dom-label-htmlfor",
+          "tags": [
+            "web-features:label"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -160,7 +175,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLLegendElement.json b/api/HTMLLegendElement.json
index ac5d78c27be68d..caffdcd0ef7c07 100644
--- a/api/HTMLLegendElement.json
+++ b/api/HTMLLegendElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +85,7 @@
       },
       "form": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLLegendElement/form",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-legend-form",
           "tags": [
             "web-features:fieldset"
@@ -114,7 +117,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLLinkElement.json b/api/HTMLLinkElement.json
index b1246880e4b94a..253a5b45ea8b1b 100644
--- a/api/HTMLLinkElement.json
+++ b/api/HTMLLinkElement.json
@@ -36,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -74,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,15 +110,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false,
-              "impl_url": "https://webkit.org/b/267232"
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -152,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -191,7 +194,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -210,12 +214,12 @@
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "In Chrome and other Blink-based browsers, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
+              "notes": "In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Since Edge 79, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
+              "notes": "Since Edge 79, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
             },
             "firefox": {
               "version_added": "1"
@@ -227,11 +231,11 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1",
-              "notes": "In Chrome and other Blink-based browsers, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
+              "notes": "In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
             },
             "opera_android": {
               "version_added": "≤12.1",
-              "notes": "In Chrome and other Blink-based browsers, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
+              "notes": "In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
             },
             "safari": {
               "version_added": "1"
@@ -239,12 +243,13 @@
             "safari_ios": "mirror",
             "samsunginternet_android": {
               "version_added": "1.0",
-              "notes": "In Chrome and other Blink-based browsers, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
+              "notes": "In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
             },
             "webview_android": {
               "version_added": "1",
-              "notes": "In Chrome and other Blink-based browsers, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
-            }
+              "notes": "In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +279,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132",
+              "impl_url": "https://bugzil.la/1797715"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -288,7 +294,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -331,7 +338,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -374,7 +382,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -410,7 +419,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -446,7 +456,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -485,7 +496,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -528,7 +540,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -565,7 +578,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -576,6 +590,9 @@
         "no-referrer-when-downgrade": {
           "__compat": {
             "description": "no-referrer-when-downgrade",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -598,7 +615,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -610,6 +628,9 @@
         "origin-when-cross-origin": {
           "__compat": {
             "description": "origin-when-cross-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -632,7 +653,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -644,6 +666,9 @@
         "unsafe-url": {
           "__compat": {
             "description": "unsafe-url",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -666,7 +691,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -710,7 +736,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -749,7 +776,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -788,7 +816,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -801,6 +830,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/sheet",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-linkstyle-sheet",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -824,7 +856,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -835,6 +868,7 @@
       },
       "sizes": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/sizes",
           "spec_url": "https://html.spec.whatwg.org/multipage/semantics.html#dom-link-sizes",
           "tags": [
             "web-features:link"
@@ -842,7 +876,7 @@
           "support": {
             "chrome": {
               "version_added": "15",
-              "notes": "Before Chrome 50, this property returned the deprecated child <code>DOMSettableTokenList</code> instead of <code>DOMTokenList</code>."
+              "notes": "Before Chrome 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -865,8 +899,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4",
-              "notes": "Before WebView 50, this property returned the deprecated child <code>DOMSettableTokenList</code> instead of <code>DOMTokenList</code>."
-            }
+              "notes": "Before WebView 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -905,7 +940,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -948,7 +984,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLMapElement.json b/api/HTMLMapElement.json
index 4f77f0dc355cb2..0d1d0a5759a3e9 100644
--- a/api/HTMLMapElement.json
+++ b/api/HTMLMapElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,7 +127,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLMarqueeElement.json b/api/HTMLMarqueeElement.json
index 2a11416cf4927a..1e0a8c1b5cd91d 100644
--- a/api/HTMLMarqueeElement.json
+++ b/api/HTMLMarqueeElement.json
@@ -14,7 +14,7 @@
           },
           "firefox": {
             "version_added": "65",
-            "notes": "Before Firefox 65, <code>&lt;marquee&gt;</code> implemented the <code>HTMLDivElement</code> interface."
+            "notes": "Before Firefox 65, `&lt;marquee&gt;` implemented the `HTMLDivElement` interface."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -32,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -70,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,7 +111,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,7 +123,7 @@
       },
       "bounce_event": {
         "__compat": {
-          "description": "<code>bounce</code> event",
+          "description": "`bounce` event",
           "support": {
             "chrome": {
               "version_added": false
@@ -146,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -185,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -196,7 +201,7 @@
       },
       "finish_event": {
         "__compat": {
-          "description": "<code>finish</code> event",
+          "description": "`finish` event",
           "support": {
             "chrome": {
               "version_added": false
@@ -222,7 +227,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,7 +267,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -300,7 +307,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,7 +347,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -378,7 +387,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -417,7 +427,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -456,7 +467,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -467,7 +479,7 @@
       },
       "start_event": {
         "__compat": {
-          "description": "<code>start</code> event",
+          "description": "`start` event",
           "support": {
             "chrome": {
               "version_added": false
@@ -493,7 +505,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -532,7 +545,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -567,7 +581,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -606,7 +621,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -645,7 +661,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLMediaElement.json b/api/HTMLMediaElement.json
index 8765a1386c7885..dbce14a18a5282 100644
--- a/api/HTMLMediaElement.json
+++ b/api/HTMLMediaElement.json
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,7 +49,7 @@
       },
       "abort_event": {
         "__compat": {
-          "description": "<code>abort</code> event",
+          "description": "`abort` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/abort_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-abort",
@@ -86,7 +87,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -97,6 +99,7 @@
       },
       "addTextTrack": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/addTextTrack",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-media-addtexttrack-dev",
           "tags": [
             "web-features:text-tracks"
@@ -142,7 +145,8 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,7 +212,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -255,7 +260,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -269,7 +275,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/buffered",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#dom-media-buffered-dev",
-            "https://w3c.github.io/media-source/#htmlmediaelement-extensions"
+            "https://w3c.github.io/media-source/#htmlmediaelement-extensions-buffered"
           ],
           "tags": [
             "web-features:video"
@@ -305,7 +311,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -316,7 +323,7 @@
       },
       "canplay_event": {
         "__compat": {
-          "description": "<code>canplay</code> event",
+          "description": "`canplay` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/canplay_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-canplay",
@@ -356,7 +363,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -367,7 +375,7 @@
       },
       "canplaythrough_event": {
         "__compat": {
-          "description": "<code>canplaythrough</code> event",
+          "description": "`canplaythrough` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/canplaythrough_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-canplaythrough",
@@ -407,7 +415,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -418,7 +427,7 @@
       },
       "canPlayType": {
         "__compat": {
-          "description": "<code>canPlayType()</code>",
+          "description": "`canPlayType()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/canPlayType",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-navigator-canplaytype-dev",
           "tags": [
@@ -428,23 +437,23 @@
             "chrome": {
               "version_added": "3",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
             },
             "firefox": {
               "version_added": "3.5",
               "notes": [
-                "Before Firefox 28, <code>canPlayType()</code> returned <code>probably</code> when asked about WebM audio or video files without the <code>codecs</code> parameter. Since multiple codecs are supported, this is not enough information to determine if a file can be played, so <code>maybe</code> is now correctly returned.",
-                "Before Firefox 101, <code>canPlayType()</code> ignored <code>codecs</code> parameter options for <code>av01</code> codecs (treating them as <code>av1</code>)."
+                "Before Firefox 28, `canPlayType()` returned `probably` when asked about WebM audio or video files without the `codecs` parameter. Since multiple codecs are supported, this is not enough information to determine if a file can be played, so `maybe` is now correctly returned.",
+                "Before Firefox 101, `canPlayType()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`)."
               ]
             },
             "firefox_android": "mirror",
@@ -455,15 +464,15 @@
             "opera": {
               "version_added": "≤12.1",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
             },
             "opera_android": {
               "version_added": "≤12.1",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
             },
             "safari": {
@@ -476,10 +485,11 @@
             "webview_android": {
               "version_added": "≤37",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -492,6 +502,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/captureStream",
           "spec_url": "https://w3c.github.io/mediacapture-fromelement/#dom-htmlmediaelement-capturestream",
+          "tags": [
+            "web-features:capture-stream-audio-video"
+          ],
           "support": {
             "chrome": {
               "version_added": "62"
@@ -514,7 +527,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -549,7 +563,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -596,7 +611,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -633,7 +649,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -679,7 +696,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -726,7 +744,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -773,7 +792,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -816,7 +836,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -863,7 +884,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -876,6 +898,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/disableRemotePlayback",
           "spec_url": "https://w3c.github.io/remote-playback/#the-disableremoteplayback-attribute",
+          "tags": [
+            "web-features:remote-playback"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -903,8 +928,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/521319"
-            }
+              "impl_url": "https://crbug.com/234081017"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -951,7 +977,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -962,7 +989,7 @@
       },
       "durationchange_event": {
         "__compat": {
-          "description": "<code>durationchange</code> event",
+          "description": "`durationchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/durationchange_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-durationchange",
@@ -1002,7 +1029,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1013,7 +1041,7 @@
       },
       "emptied_event": {
         "__compat": {
-          "description": "<code>emptied</code> event",
+          "description": "`emptied` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/emptied_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-emptied",
@@ -1053,7 +1081,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1064,7 +1093,7 @@
       },
       "encrypted_event": {
         "__compat": {
-          "description": "<code>encrypted</code> event",
+          "description": "`encrypted` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/encrypted_event",
           "spec_url": "https://w3c.github.io/encrypted-media/#dom-htmlmediaelement-onencrypted",
           "support": {
@@ -1090,7 +1119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1137,7 +1167,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1148,7 +1179,7 @@
       },
       "ended_event": {
         "__compat": {
-          "description": "<code>ended</code> event",
+          "description": "`ended` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/ended_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-ended",
@@ -1188,7 +1219,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1235,7 +1267,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1246,7 +1279,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/error_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-error",
@@ -1284,7 +1317,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1303,7 +1337,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/648207"
+              "impl_url": "https://crbug.com/41276303"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -1322,7 +1356,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1355,7 +1390,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1402,7 +1438,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1413,7 +1450,7 @@
       },
       "loadeddata_event": {
         "__compat": {
-          "description": "<code>loadeddata</code> event",
+          "description": "`loadeddata` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/loadeddata_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-loadeddata",
@@ -1453,7 +1490,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1464,7 +1502,7 @@
       },
       "loadedmetadata_event": {
         "__compat": {
-          "description": "<code>loadedmetadata</code> event",
+          "description": "`loadedmetadata` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/loadedmetadata_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-loadedmetadata",
@@ -1504,7 +1542,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1515,7 +1554,7 @@
       },
       "loadstart_event": {
         "__compat": {
-          "description": "<code>loadstart</code> event",
+          "description": "`loadstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/loadstart_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-loadstart",
@@ -1553,7 +1592,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1600,7 +1640,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1635,7 +1676,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1671,7 +1713,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1703,7 +1746,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1735,7 +1779,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1767,7 +1812,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1799,7 +1845,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1846,7 +1893,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1872,7 +1920,7 @@
             },
             "firefox": {
               "version_added": "3.5",
-              "notes": "The <code>NETWORK_LOADED</code> state was removed to align with the HTML spec in Firefox 4."
+              "notes": "The `NETWORK_LOADED` state was removed to align with the HTML spec in Firefox 4."
             },
             "firefox_android": {
               "version_added": "4"
@@ -1896,7 +1944,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1943,7 +1992,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1954,7 +2004,7 @@
       },
       "pause_event": {
         "__compat": {
-          "description": "<code>pause</code> event",
+          "description": "`pause` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/pause_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-pause",
@@ -1994,7 +2044,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2041,7 +2092,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2088,7 +2140,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2098,7 +2151,7 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
             "tags": [
               "web-features:video"
             ],
@@ -2125,7 +2178,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2137,7 +2191,7 @@
       },
       "play_event": {
         "__compat": {
-          "description": "<code>play</code> event",
+          "description": "`play` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/play_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-play",
@@ -2177,7 +2231,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2197,18 +2252,18 @@
             "chrome": {
               "version_added": "3",
               "partial_implementation": true,
-              "notes": "Setting the <code>playbackRate</code> to a negative value will throw an error."
+              "notes": "Setting the `playbackRate` to a negative value will throw an error."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
               "partial_implementation": true,
-              "notes": "Setting the <code>playbackRate</code> to a negative value will throw an error."
+              "notes": "Setting the `playbackRate` to a negative value will throw an error."
             },
             "firefox": {
               "version_added": "20",
               "partial_implementation": true,
-              "notes": "Setting the <code>playbackRate</code> to a negative value will throw an error."
+              "notes": "Setting the `playbackRate` to a negative value will throw an error."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2218,12 +2273,12 @@
             "opera": {
               "version_added": "≤12.1",
               "partial_implementation": true,
-              "notes": "Setting the <code>playbackRate</code> to a negative value will throw an error."
+              "notes": "Setting the `playbackRate` to a negative value will throw an error."
             },
             "opera_android": {
               "version_added": "≤12.1",
               "partial_implementation": true,
-              "notes": "Setting the <code>playbackRate</code> to a negative value will throw an error."
+              "notes": "Setting the `playbackRate` to a negative value will throw an error."
             },
             "safari": {
               "version_added": "3.1"
@@ -2232,7 +2287,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2278,7 +2334,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2289,7 +2346,7 @@
       },
       "playing_event": {
         "__compat": {
-          "description": "<code>playing</code> event",
+          "description": "`playing` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/playing_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-playing",
@@ -2329,7 +2386,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2376,7 +2434,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2420,7 +2479,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2431,7 +2491,7 @@
       },
       "progress_event": {
         "__compat": {
-          "description": "<code>progress</code> event",
+          "description": "`progress` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/progress_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-progress",
@@ -2469,7 +2529,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2480,7 +2541,7 @@
       },
       "ratechange_event": {
         "__compat": {
-          "description": "<code>ratechange</code> event",
+          "description": "`ratechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/ratechange_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-ratechange",
@@ -2520,7 +2581,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2567,7 +2629,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2580,6 +2643,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/remote",
           "spec_url": "https://w3c.github.io/remote-playback/#dom-htmlmediaelement-remote",
+          "tags": [
+            "web-features:remote-playback"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -2605,8 +2671,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/521319"
-            }
+              "impl_url": "https://crbug.com/234081017"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2620,7 +2687,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/seekable",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#dom-media-seekable-dev",
-            "https://w3c.github.io/media-source/#htmlmediaelement-extensions"
+            "https://w3c.github.io/media-source/#htmlmediaelement-extensions-seekable"
           ],
           "tags": [
             "web-features:video"
@@ -2656,7 +2723,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2667,7 +2735,7 @@
       },
       "seeked_event": {
         "__compat": {
-          "description": "<code>seeked</code> event",
+          "description": "`seeked` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/seeked_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-seeked",
@@ -2707,7 +2775,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2753,7 +2822,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2764,7 +2834,7 @@
       },
       "seeking_event": {
         "__compat": {
-          "description": "<code>seeking</code> event",
+          "description": "`seeking` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/seeking_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-seeking",
@@ -2804,7 +2874,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2838,7 +2909,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2874,7 +2946,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2893,7 +2966,7 @@
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "Not available due to a limitation in Android, see <a href='https://crbug.com/648286'>bug 648286</a>."
+              "notes": "Not available due to a limitation in Android, see [bug 41276355](https://crbug.com/41276355)."
             },
             "edge": {
               "version_added": "17"
@@ -2903,7 +2976,7 @@
             },
             "firefox_android": {
               "version_added": false,
-              "notes": "Not available due to a limitation in Android, see <a href='https://bugzil.la/1473346'>bug 1473346</a>."
+              "notes": "Not available due to a limitation in Android, see [bug 1473346](https://bugzil.la/1473346)."
             },
             "ie": {
               "version_added": false
@@ -2912,11 +2985,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/216641"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2935,7 +3010,7 @@
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "Not available due to a limitation in Android, see <a href='https://crbug.com/648286'>bug 648286</a>."
+              "notes": "Not available due to a limitation in Android, see [bug 41276355](https://crbug.com/41276355)."
             },
             "edge": {
               "version_added": "17"
@@ -2945,7 +3020,7 @@
             },
             "firefox_android": {
               "version_added": false,
-              "notes": "Not available due to a limitation in Android, see <a href='https://bugzil.la/1473346'>bug 1473346</a>."
+              "notes": "Not available due to a limitation in Android, see [bug 1473346](https://bugzil.la/1473346)."
             },
             "ie": {
               "version_added": false
@@ -2954,11 +3029,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/216641"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3005,7 +3082,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3017,18 +3095,21 @@
       "srcObject": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/srcObject",
-          "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-media-srcobject-dev",
+          "spec_url": [
+            "https://html.spec.whatwg.org/multipage/media.html#dom-media-srcobject-dev",
+            "https://w3c.github.io/media-source/#htmlmediaelement-extensions-srcobject"
+          ],
           "support": {
             "chrome": [
               {
                 "version_added": "108",
                 "partial_implementation": true,
-                "notes": "Support added for <code>MediaSourceHandle</code> objects transferred from dedicated workers where they were obtained from <code>MediaSource.handle</code> (see <a href='https://crbug.com/878133'>bug 878133</a>)."
+                "notes": "Support added for `MediaSourceHandle` objects transferred from dedicated workers where they were obtained from `MediaSource.handle` (see [bug 40591101](https://crbug.com/40591101))."
               },
               {
                 "version_added": "52",
                 "partial_implementation": true,
-                "notes": "Support added for <code>MediaStream</code> objects (see <a href='https://crbug.com/506273'>bug 506273</a>)."
+                "notes": "Support added for `MediaStream` objects (see [bug 41186131](https://crbug.com/41186131))."
               }
             ],
             "chrome_android": "mirror",
@@ -3037,7 +3118,7 @@
               {
                 "version_added": "42",
                 "partial_implementation": true,
-                "notes": "Only supports <code>MediaStream</code> objects (see <a href='https://bugzil.la/886194'>bug 886194</a>)."
+                "notes": "Only supports `MediaStream` objects (see [bug 886194](https://bugzil.la/886194))."
               },
               {
                 "prefix": "moz",
@@ -3057,7 +3138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3068,7 +3150,7 @@
       },
       "stalled_event": {
         "__compat": {
-          "description": "<code>stalled</code> event",
+          "description": "`stalled` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/stalled_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-stalled",
@@ -3108,7 +3190,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3119,7 +3202,7 @@
       },
       "suspend_event": {
         "__compat": {
-          "description": "<code>suspend</code> event",
+          "description": "`suspend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/suspend_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-suspend",
@@ -3159,7 +3242,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3201,7 +3285,8 @@
             "samsunginternet_android": {
               "version_added": "1.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3212,7 +3297,7 @@
       },
       "timeupdate_event": {
         "__compat": {
-          "description": "<code>timeupdate</code> event",
+          "description": "`timeupdate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/timeupdate_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-timeupdate",
@@ -3252,7 +3337,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3318,7 +3404,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3362,12 +3449,13 @@
             "safari_ios": {
               "version_added": "3",
               "partial_implementation": true,
-              "notes": "<code>volume</code> returns a value and is writable; however, the value is always 1, and setting a value has no effect on the volume of the media object."
+              "notes": "`volume` returns a value and is writable; however, the value is always 1, and setting a value has no effect on the volume of the media object."
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3378,7 +3466,7 @@
       },
       "volumechange_event": {
         "__compat": {
-          "description": "<code>volumechange</code> event",
+          "description": "`volumechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/volumechange_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-volumechange",
@@ -3418,7 +3506,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3429,7 +3518,7 @@
       },
       "waiting_event": {
         "__compat": {
-          "description": "<code>waiting</code> event",
+          "description": "`waiting` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/waiting_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-waiting",
@@ -3469,7 +3558,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3480,7 +3570,8 @@
       },
       "waitingforkey_event": {
         "__compat": {
-          "description": "<code>waitingforkey</code> event",
+          "description": "`waitingforkey` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/waitingforkey_event",
           "spec_url": "https://w3c.github.io/encrypted-media/#dom-htmlmediaelement-onwaitingforkey",
           "support": {
             "chrome": {
@@ -3488,9 +3579,17 @@
             },
             "chrome_android": "mirror",
             "edge": "mirror",
-            "firefox": {
-              "version_added": "52"
-            },
+            "firefox": [
+              {
+                "version_added": "133"
+              },
+              {
+                "version_added": "52",
+                "version_removed": "133",
+                "partial_implementation": true,
+                "notes": "The `onwaitingforkey` event handler property is not supported."
+              }
+            ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
@@ -3503,7 +3602,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLMenuElement.json b/api/HTMLMenuElement.json
index 4bcaeae7b74c8b..0e52b894bbfca2 100644
--- a/api/HTMLMenuElement.json
+++ b/api/HTMLMenuElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMenuElement",
         "spec_url": "https://html.spec.whatwg.org/multipage/grouping-content.html#htmlmenuelement",
+        "tags": [
+          "web-features:menu"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLMetaElement.json b/api/HTMLMetaElement.json
index a0fac875b6f0f9..fe7872e8772014 100644
--- a/api/HTMLMetaElement.json
+++ b/api/HTMLMetaElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,7 +159,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -199,7 +203,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -239,7 +244,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLMeterElement.json b/api/HTMLMeterElement.json
index 0582abbe227e32..7482be549466bb 100644
--- a/api/HTMLMeterElement.json
+++ b/api/HTMLMeterElement.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +42,7 @@
       },
       "high": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/high",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-meter-high",
           "support": {
             "chrome": {
@@ -69,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +124,7 @@
       },
       "low": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/low",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-meter-low",
           "support": {
             "chrome": {
@@ -148,7 +153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +165,7 @@
       },
       "max": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/max",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-meter-max",
           "support": {
             "chrome": {
@@ -187,7 +194,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +206,7 @@
       },
       "min": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/min",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-meter-min",
           "support": {
             "chrome": {
@@ -226,7 +235,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +247,7 @@
       },
       "optimum": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/optimum",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-meter-optimum",
           "support": {
             "chrome": {
@@ -265,7 +276,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +288,7 @@
       },
       "value": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/value",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-meter-value",
           "support": {
             "chrome": {
@@ -304,7 +317,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLModElement.json b/api/HTMLModElement.json
index a08a8a461314b3..82cfb83334f86a 100644
--- a/api/HTMLModElement.json
+++ b/api/HTMLModElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +47,7 @@
       },
       "cite": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLModElement/cite",
           "spec_url": "https://html.spec.whatwg.org/multipage/edits.html#dom-mod-cite",
           "tags": [
             "web-features:del"
@@ -79,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,7 +126,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLOListElement.json b/api/HTMLOListElement.json
index 5493ce5ba7c114..5dcb1bf06a49ff 100644
--- a/api/HTMLOListElement.json
+++ b/api/HTMLOListElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,7 +165,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,7 +211,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLObjectElement.json b/api/HTMLObjectElement.json
index ae71ff48903482..f4d0ee64cea82c 100644
--- a/api/HTMLObjectElement.json
+++ b/api/HTMLObjectElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,7 +119,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,7 +161,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -203,7 +207,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -244,7 +249,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -285,7 +291,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -326,7 +333,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -371,7 +379,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -410,7 +419,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -455,7 +465,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -496,7 +507,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -541,7 +553,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -552,6 +565,7 @@
       },
       "getSVGDocument": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/getSVGDocument",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content-other.html#dom-media-getsvgdocument",
           "tags": [
             "web-features:object"
@@ -585,7 +599,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -630,7 +645,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -671,7 +687,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -716,7 +733,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -727,6 +745,7 @@
       },
       "reportValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/reportValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-reportvalidity",
           "tags": [
             "web-features:constraint-validation"
@@ -754,7 +773,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -773,7 +793,7 @@
           "support": {
             "chrome": {
               "version_added": "10",
-              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see <a href='https://crbug.com/828757'>bug 828757</a>."
+              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see [bug 41380670](https://crbug.com/41380670)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -800,7 +820,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -841,7 +862,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -886,7 +908,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -928,7 +951,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -973,7 +997,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1018,7 +1043,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1059,7 +1085,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1104,7 +1131,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1151,7 +1179,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLOptGroupElement.json b/api/HTMLOptGroupElement.json
index 912110841287f6..c090469bfeb4dc 100644
--- a/api/HTMLOptGroupElement.json
+++ b/api/HTMLOptGroupElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +47,7 @@
       },
       "disabled": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptGroupElement/disabled",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-optgroup-disabled",
           "tags": [
             "web-features:select"
@@ -79,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -90,6 +93,7 @@
       },
       "label": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptGroupElement/label",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-optgroup-label",
           "tags": [
             "web-features:select"
@@ -123,7 +127,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLOptionElement.json b/api/HTMLOptionElement.json
index 0c3f258aa657cb..25468fce79a460 100644
--- a/api/HTMLOptionElement.json
+++ b/api/HTMLOptionElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,7 +45,7 @@
       },
       "Option": {
         "__compat": {
-          "description": "<code>Option()</code> constructor",
+          "description": "`Option()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/Option",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-dev",
           "tags": [
@@ -64,7 +65,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5.5",
-              "notes": "Before Internet Explorer 9, the <code>outerHTML</code> of elements lose their text when constructing with <code>new Option()</code>."
+              "notes": "Before Internet Explorer 9, the `outerHTML` of elements lose their text when constructing with `new Option()`."
             },
             "oculus": "mirror",
             "opera": {
@@ -78,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +91,7 @@
       },
       "defaultSelected": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/defaultSelected",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-defaultselected",
           "tags": [
             "web-features:select"
@@ -122,7 +125,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -133,6 +137,7 @@
       },
       "disabled": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/disabled",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-disabled",
           "tags": [
             "web-features:select"
@@ -166,7 +171,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,6 +183,7 @@
       },
       "form": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/form",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-form-dev",
           "tags": [
             "web-features:select"
@@ -210,7 +217,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -221,6 +229,7 @@
       },
       "index": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/index",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-index-dev",
           "tags": [
             "web-features:select"
@@ -254,7 +263,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -265,6 +275,7 @@
       },
       "label": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/label",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-label",
           "tags": [
             "web-features:select"
@@ -285,7 +296,7 @@
                 "version_added": "1",
                 "version_removed": "7",
                 "partial_implementation": true,
-                "notes": "Before Firefox 7 the <code>label</code> property incorrectly returned an empty string if not defined instead of returning the element's text content."
+                "notes": "Before Firefox 7 the `label` property incorrectly returned an empty string if not defined instead of returning the element's text content."
               }
             ],
             "firefox_android": "mirror",
@@ -306,7 +317,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -317,6 +329,7 @@
       },
       "selected": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/selected",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-selected-dev",
           "tags": [
             "web-features:select"
@@ -350,7 +363,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -361,6 +375,7 @@
       },
       "text": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/text",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-text-dev",
           "tags": [
             "web-features:select"
@@ -394,7 +409,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -405,6 +421,7 @@
       },
       "value": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/value",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-value",
           "tags": [
             "web-features:select"
@@ -438,7 +455,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLOptionsCollection.json b/api/HTMLOptionsCollection.json
index b9a8eb45b5e0f1..4a9ae6a589b4ac 100644
--- a/api/HTMLOptionsCollection.json
+++ b/api/HTMLOptionsCollection.json
@@ -35,7 +35,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +46,7 @@
       },
       "add": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionsCollection/add",
           "spec_url": "https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#dom-htmloptionscollection-add-dev",
           "support": {
             "chrome": {
@@ -77,7 +79,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,6 +91,7 @@
       },
       "length": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionsCollection/length",
           "spec_url": "https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#dom-htmloptionscollection-length-dev",
           "support": {
             "chrome": {
@@ -120,7 +124,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,6 +136,7 @@
       },
       "remove": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionsCollection/remove",
           "spec_url": "https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#dom-htmloptionscollection-remove-dev",
           "support": {
             "chrome": {
@@ -163,7 +169,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,6 +181,7 @@
       },
       "selectedIndex": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOptionsCollection/selectedIndex",
           "spec_url": "https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#the-htmloptionscollection-interface:dom-htmloptionscollection-selectedindex-2",
           "support": {
             "chrome": {
@@ -206,7 +214,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLOutputElement.json b/api/HTMLOutputElement.json
index d94cac961498cc..aecece356d9bd8 100644
--- a/api/HTMLOutputElement.json
+++ b/api/HTMLOutputElement.json
@@ -36,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,7 +47,7 @@
       },
       "HTMLOutputElement": {
         "__compat": {
-          "description": "<code>HTMLOutputElement()</code> constructor",
+          "description": "`HTMLOutputElement()` constructor",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#htmloutputelement",
           "tags": [
             "web-features:output"
@@ -72,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -83,6 +85,7 @@
       },
       "checkValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/checkValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-checkvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -116,7 +119,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,6 +131,7 @@
       },
       "defaultValue": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/defaultValue",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-output-defaultvalue-dev",
           "tags": [
             "web-features:output"
@@ -160,7 +165,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +177,7 @@
       },
       "form": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/form",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fae-form-dev",
           "tags": [
             "web-features:output"
@@ -204,7 +211,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,6 +223,7 @@
       },
       "htmlFor": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/htmlFor",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-output-htmlfor",
           "tags": [
             "web-features:output"
@@ -222,7 +231,7 @@
           "support": {
             "chrome": {
               "version_added": "9",
-              "notes": "Before Chrome 50, this property returned the deprecated child <code>DOMSettableTokenList</code> instead of <code>DOMTokenList</code>."
+              "notes": "Before Chrome 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -245,8 +254,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3",
-              "notes": "Before Chrome 50, this property returned the deprecated child <code>DOMSettableTokenList</code> instead of <code>DOMTokenList</code>."
-            }
+              "notes": "Before Chrome 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,7 +301,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -302,6 +313,7 @@
       },
       "name": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/name",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-name",
           "tags": [
             "web-features:output"
@@ -335,7 +347,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -346,6 +359,7 @@
       },
       "reportValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/reportValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-reportvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -373,7 +387,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -384,6 +399,7 @@
       },
       "setCustomValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/setCustomValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-setcustomvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -391,7 +407,7 @@
           "support": {
             "chrome": {
               "version_added": "9",
-              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see <a href='https://crbug.com/828757'>bug 828757</a>."
+              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see [bug 41380670](https://crbug.com/41380670)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -418,7 +434,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -429,6 +446,7 @@
       },
       "type": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/type",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-output-type-dev",
           "tags": [
             "web-features:output"
@@ -458,7 +476,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -469,6 +488,7 @@
       },
       "validationMessage": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/validationMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-validationmessage-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -502,7 +522,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -513,6 +534,7 @@
       },
       "validity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/validity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-constraint-validation-api:dom-cva-validity",
           "tags": [
             "web-features:constraint-validation"
@@ -546,7 +568,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -557,6 +580,7 @@
       },
       "value": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/value",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-output-value-dev",
           "tags": [
             "web-features:output"
@@ -590,7 +614,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -601,6 +626,7 @@
       },
       "willValidate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/willValidate",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-willvalidate-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -634,7 +660,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLParagraphElement.json b/api/HTMLParagraphElement.json
index 1faea365b981d0..48697e71a8a5b0 100644
--- a/api/HTMLParagraphElement.json
+++ b/api/HTMLParagraphElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLParamElement.json b/api/HTMLParamElement.json
index 9874677e7bd2c5..d6c6e1fcb8931f 100644
--- a/api/HTMLParamElement.json
+++ b/api/HTMLParamElement.json
@@ -33,7 +33,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,7 +74,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -114,7 +116,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,7 +158,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -196,7 +200,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLPictureElement.json b/api/HTMLPictureElement.json
index c80a433ada4265..3d1907b375ff7b 100644
--- a/api/HTMLPictureElement.json
+++ b/api/HTMLPictureElement.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/HTMLPortalElement.json b/api/HTMLPortalElement.json
index 7d3507d88d2fa8..9b6c3deaa476f4 100644
--- a/api/HTMLPortalElement.json
+++ b/api/HTMLPortalElement.json
@@ -12,7 +12,7 @@
                 "value_to_set": "enabled"
               }
             ],
-            "notes": "See <a href='https://www.chromestatus.com/feature/4828882419056640'>Chrome Platform Status</a>."
+            "notes": "See [Chrome Platform Status](https://www.chromestatus.com/feature/4828882419056640)."
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
diff --git a/api/HTMLPreElement.json b/api/HTMLPreElement.json
index 6e517533bc742c..225a4d754255aa 100644
--- a/api/HTMLPreElement.json
+++ b/api/HTMLPreElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLProgressElement.json b/api/HTMLProgressElement.json
index d184fb11dd3a2e..08721b4d463df0 100644
--- a/api/HTMLProgressElement.json
+++ b/api/HTMLProgressElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -205,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLQuoteElement.json b/api/HTMLQuoteElement.json
index 6f8b0aa2a45098..7b2cdc8d5c248b 100644
--- a/api/HTMLQuoteElement.json
+++ b/api/HTMLQuoteElement.json
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,6 +49,7 @@
       },
       "cite": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLQuoteElement/cite",
           "spec_url": "https://html.spec.whatwg.org/multipage/grouping-content.html#dom-quote-cite",
           "tags": [
             "web-features:q"
@@ -83,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLScriptElement.json b/api/HTMLScriptElement.json
index 4db3c91414b69c..fc5e9cd5ca313c 100644
--- a/api/HTMLScriptElement.json
+++ b/api/HTMLScriptElement.json
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -78,7 +79,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,7 @@
           "spec_url": "https://wicg.github.io/attribution-reporting-api/#dom-htmlattributionsrcelementutils-attributionsrc",
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "125"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -112,7 +114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,15 +149,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false,
-              "impl_url": "https://webkit.org/b/267232"
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -192,7 +195,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -231,7 +235,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,7 +266,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
-              "notes": "Before Internet Explorer 10, it implemented <code>defer</code> by a proprietary specification. Since version 10 it conforms to the W3C specification."
+              "notes": "Before Internet Explorer 10, it implemented `defer` by a proprietary specification. Since version 10 it conforms to the W3C specification."
             },
             "oculus": "mirror",
             "opera": {
@@ -277,7 +282,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,7 +320,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -344,7 +351,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132",
+              "impl_url": "https://bugzil.la/1797715"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -358,7 +366,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -395,7 +404,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -436,7 +446,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -472,7 +483,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -509,7 +521,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -520,6 +533,9 @@
         "no-referrer-when-downgrade": {
           "__compat": {
             "description": "no-referrer-when-downgrade",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "70"
@@ -542,7 +558,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -554,6 +571,9 @@
         "origin-when-cross-origin": {
           "__compat": {
             "description": "origin-when-cross-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "70"
@@ -576,7 +596,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -588,6 +609,9 @@
         "unsafe-url": {
           "__compat": {
             "description": "unsafe-url",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "70"
@@ -610,7 +634,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -656,7 +681,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -667,7 +693,7 @@
       },
       "supports_static": {
         "__compat": {
-          "description": "<code>supports()</code> static method",
+          "description": "`supports()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLScriptElement/supports_static",
           "spec_url": "https://html.spec.whatwg.org/multipage/scripting.html#dom-script-supports-dev",
           "tags": [
@@ -694,7 +720,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -739,7 +766,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -784,7 +812,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLSelectElement.json b/api/HTMLSelectElement.json
index cf725df7fbc878..0f943d6fda49c0 100644
--- a/api/HTMLSelectElement.json
+++ b/api/HTMLSelectElement.json
@@ -17,7 +17,7 @@
           },
           "firefox": {
             "version_added": "1",
-            "notes": "You should watch for <a href='https://developer.mozilla.org/docs/Web/Events/change'>change</a> events on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/select'><code>&lt;select&gt;</code></a> instead of watching <code>&lt;option&gt;</code> elements for events. See <a href='https://bugzil.la/1090602'>bug 1090602</a> and <a href='https://developer.mozilla.org/docs/Mozilla/Firefox/Multiprocess_Firefox/Web_content_compatibility'>Multiprocess Firefox Web content compatibility</a> for details."
+            "notes": "You should watch for [change](https://developer.mozilla.org/docs/Web/Events/change) events on [`&lt;select&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/select) instead of watching `&lt;option&gt;` elements for events. See [bug 1090602](https://bugzil.la/1090602) and [Multiprocess Firefox Web content compatibility](https://developer.mozilla.org/docs/Mozilla/Firefox/Multiprocess_Firefox/Web_content_compatibility) for details."
           },
           "firefox_android": {
             "version_added": "4"
@@ -39,7 +39,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -83,7 +84,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,7 @@
         },
         "index_before_parameter": {
           "__compat": {
-            "description": "Index as <code>before</code> parameter",
+            "description": "Index as `before` parameter",
             "tags": [
               "web-features:select"
             ],
@@ -120,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,6 +135,7 @@
       },
       "autocomplete": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/autocomplete",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-autocomplete",
           "tags": [
             "web-features:select"
@@ -173,7 +177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -220,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -265,7 +271,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -310,7 +317,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -355,7 +363,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -400,7 +409,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -411,6 +421,7 @@
       },
       "length": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/length",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-select-length-dev",
           "tags": [
             "web-features:select"
@@ -444,7 +455,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -455,6 +467,7 @@
       },
       "multiple": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/multiple",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-select-multiple",
           "tags": [
             "web-features:select"
@@ -488,7 +501,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -499,6 +513,7 @@
       },
       "name": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/name",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-name",
           "tags": [
             "web-features:select"
@@ -532,7 +547,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -555,7 +571,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "<code>namedItem</code> does not appear to take the <code>name</code> attribute into account (only the <code>id</code> attribute) on Internet Explorer and Edge. There is a <a href='https://connect.microsoft.com/IE/feedbackdetail/view/2414092/'>bug report</a> to Microsoft about this."
+              "notes": "`namedItem` does not appear to take the `name` attribute into account (only the `id` attribute) on Internet Explorer and Edge. There is a [bug report](https://connect.microsoft.com/IE/feedbackdetail/view/2414092/) to Microsoft about this."
             },
             "firefox": {
               "version_added": "1"
@@ -563,7 +579,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "6",
-              "notes": "<code>namedItem</code> does not appear to take the <code>name</code> attribute into account (only the <code>id</code> attribute) on Internet Explorer and Edge. There is a <a href='https://connect.microsoft.com/IE/feedbackdetail/view/2414092/'>bug report</a> to Microsoft about this."
+              "notes": "`namedItem` does not appear to take the `name` attribute into account (only the `id` attribute) on Internet Explorer and Edge. There is a [bug report](https://connect.microsoft.com/IE/feedbackdetail/view/2414092/) to Microsoft about this."
             },
             "oculus": "mirror",
             "opera": {
@@ -579,7 +595,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -624,7 +641,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -669,7 +687,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -680,6 +699,7 @@
       },
       "reportValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/reportValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-reportvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -709,7 +729,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -720,6 +741,7 @@
       },
       "required": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/required",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-select-required",
           "tags": [
             "web-features:select"
@@ -753,7 +775,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -798,7 +821,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -841,7 +865,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -860,7 +885,7 @@
           "support": {
             "chrome": {
               "version_added": "4",
-              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see <a href='https://crbug.com/828757'>bug 828757</a>."
+              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see [bug 41380670](https://crbug.com/41380670)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -889,7 +914,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -933,7 +959,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -944,6 +971,7 @@
       },
       "size": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/size",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-select-size",
           "tags": [
             "web-features:select"
@@ -977,7 +1005,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1022,7 +1051,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1033,6 +1063,7 @@
       },
       "validationMessage": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/validationMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-validationmessage-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -1068,7 +1099,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1079,6 +1111,7 @@
       },
       "validity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/validity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-constraint-validation-api:dom-cva-validity",
           "tags": [
             "web-features:constraint-validation"
@@ -1114,7 +1147,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1159,7 +1193,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1170,6 +1205,7 @@
       },
       "willValidate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/willValidate",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-willvalidate-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -1205,7 +1241,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLSlotElement.json b/api/HTMLSlotElement.json
index 06250373e2a4b4..aea1eb402e4fc4 100644
--- a/api/HTMLSlotElement.json
+++ b/api/HTMLSlotElement.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -186,7 +191,7 @@
       },
       "slotchange_event": {
         "__compat": {
-          "description": "<code>slotchange</code> event",
+          "description": "`slotchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSlotElement/slotchange_event",
           "spec_url": [
             "https://dom.spec.whatwg.org/#eventdef-htmlslotelement-slotchange",
@@ -219,12 +224,13 @@
                 "version_added": "10",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onslotchange</code> event handler property is not supported."
+                "notes": "The `onslotchange` event handler property is not supported."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLSourceElement.json b/api/HTMLSourceElement.json
index 99c52009ff0ac9..f066b7b34ee5e3 100644
--- a/api/HTMLSourceElement.json
+++ b/api/HTMLSourceElement.json
@@ -33,7 +33,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,6 +79,7 @@
       },
       "media": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/media",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-source-media",
           "support": {
             "chrome": {
@@ -107,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +122,7 @@
       },
       "sizes": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/sizes",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-source-sizes",
           "support": {
             "chrome": {
@@ -139,11 +144,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "10.1",
-              "notes": "The <a href='https://developer.mozilla.org/docs/Web/HTML/Element/source#attr-sizes'><code>sizes</code></a> attribute is supported since Safari 9.1."
+              "notes": "The [`sizes`](https://developer.mozilla.org/docs/Web/HTML/Element/source#attr-sizes) attribute is supported since Safari 9.1."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,6 +160,7 @@
       },
       "src": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/src",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-source-src",
           "support": {
             "chrome": {
@@ -184,7 +191,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,6 +203,7 @@
       },
       "srcset": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/srcset",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-source-srcset",
           "support": {
             "chrome": {
@@ -216,11 +225,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "10.1",
-              "notes": "The <a href='https://developer.mozilla.org/docs/Web/HTML/Element/source#attr-srcset'><code>srcset</code></a> attribute is supported since Safari 9.1."
+              "notes": "The [`srcset`](https://developer.mozilla.org/docs/Web/HTML/Element/source#attr-srcset) attribute is supported since Safari 9.1."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -231,6 +241,7 @@
       },
       "type": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/type",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-source-type",
           "support": {
             "chrome": {
@@ -261,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -295,7 +307,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLSpanElement.json b/api/HTMLSpanElement.json
index fbfce3ab00d0be..e57dcfbd01e58e 100644
--- a/api/HTMLSpanElement.json
+++ b/api/HTMLSpanElement.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/HTMLStyleElement.json b/api/HTMLStyleElement.json
index 32534a638625cc..ddc51dbf18f1c2 100644
--- a/api/HTMLStyleElement.json
+++ b/api/HTMLStyleElement.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -67,15 +68,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false,
-              "impl_url": "https://webkit.org/b/267232"
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -115,7 +116,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,7 +160,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +174,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLStyleElement/sheet",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-linkstyle-sheet",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -198,7 +204,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -238,7 +245,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTableCaptionElement.json b/api/HTMLTableCaptionElement.json
index ecc294eff92f28..4a12ed814c0289 100644
--- a/api/HTMLTableCaptionElement.json
+++ b/api/HTMLTableCaptionElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -77,7 +78,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTableCellElement.json b/api/HTMLTableCellElement.json
index bcbf83a510b113..ccde4d69ce822e 100644
--- a/api/HTMLTableCellElement.json
+++ b/api/HTMLTableCellElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -122,7 +124,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,7 +166,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -205,7 +209,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -250,7 +255,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -292,7 +298,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -334,7 +341,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -379,7 +387,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -424,7 +433,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -465,7 +475,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -507,7 +518,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -552,7 +564,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -597,7 +610,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -639,7 +653,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -680,7 +695,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTableColElement.json b/api/HTMLTableColElement.json
index a30f231e81a257..019ceeb7c45801 100644
--- a/api/HTMLTableColElement.json
+++ b/api/HTMLTableColElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -77,7 +78,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +164,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +210,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -248,7 +253,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -289,7 +295,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTableElement.json b/api/HTMLTableElement.json
index 4381107eaa814a..602949ee2193af 100644
--- a/api/HTMLTableElement.json
+++ b/api/HTMLTableElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -77,7 +78,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +164,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +210,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -248,7 +253,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -290,7 +296,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -335,7 +342,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -374,7 +382,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -419,7 +428,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -464,7 +474,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -509,7 +520,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -554,7 +566,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -599,7 +612,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -644,7 +658,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -686,7 +701,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -712,7 +728,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Starting with Firefox 20, the <code>index</code> parameter has been made optional and defaults to -1 as per HTML specification."
+              "notes": "Starting with Firefox 20, the `index` parameter has been made optional and defaults to -1 as per HTML specification."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -734,7 +750,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -779,7 +796,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -821,7 +839,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -863,7 +882,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -908,7 +928,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -953,7 +974,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -998,7 +1020,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1040,7 +1063,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTableRowElement.json b/api/HTMLTableRowElement.json
index f6975803c3cca1..77af94fe602cb3 100644
--- a/api/HTMLTableRowElement.json
+++ b/api/HTMLTableRowElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -77,7 +78,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -164,7 +167,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +210,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -248,7 +253,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -293,7 +299,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -338,7 +345,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -348,7 +356,7 @@
         },
         "index_parameter_negative_one": {
           "__compat": {
-            "description": "<code>index</code> parameter can be <code>-1</code>",
+            "description": "`index` parameter can be `-1`",
             "tags": [
               "web-features:table"
             ],
@@ -381,7 +389,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -392,7 +401,7 @@
         },
         "index_parameter_optional": {
           "__compat": {
-            "description": "<code>index</code> parameter is optional",
+            "description": "`index` parameter is optional",
             "tags": [
               "web-features:table"
             ],
@@ -421,7 +430,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -467,7 +477,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -512,7 +523,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -554,7 +566,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTableSectionElement.json b/api/HTMLTableSectionElement.json
index a63aab67f678a7..dbcc92043c30e3 100644
--- a/api/HTMLTableSectionElement.json
+++ b/api/HTMLTableSectionElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -77,7 +78,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +164,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +210,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -251,7 +256,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -296,7 +302,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -338,7 +345,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTemplateElement.json b/api/HTMLTemplateElement.json
index 528b282acd80df..e53c46ed010b39 100644
--- a/api/HTMLTemplateElement.json
+++ b/api/HTMLTemplateElement.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,7 +177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,7 +212,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTextAreaElement.json b/api/HTMLTextAreaElement.json
index 53ccbc8e652eb4..fa4755bbdfd24c 100644
--- a/api/HTMLTextAreaElement.json
+++ b/api/HTMLTextAreaElement.json
@@ -36,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +47,7 @@
       },
       "autocomplete": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/autocomplete",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-autocomplete",
           "tags": [
             "web-features:textarea"
@@ -71,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -82,6 +85,7 @@
       },
       "checkValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/checkValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-checkvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -117,7 +121,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,6 +133,7 @@
       },
       "cols": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/cols",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-cols",
           "tags": [
             "web-features:textarea"
@@ -159,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -170,6 +177,7 @@
       },
       "defaultValue": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/defaultValue",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-defaultvalue",
           "tags": [
             "web-features:textarea"
@@ -201,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,7 +250,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -252,6 +262,7 @@
       },
       "disabled": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/disabled",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-disabled",
           "tags": [
             "web-features:textarea"
@@ -283,7 +294,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -294,6 +306,7 @@
       },
       "form": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/form",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fae-form-dev",
           "tags": [
             "web-features:textarea"
@@ -325,7 +338,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -370,7 +384,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -381,6 +396,7 @@
       },
       "maxLength": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/maxLength",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-maxlength",
           "tags": [
             "web-features:textarea"
@@ -416,7 +432,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -427,6 +444,7 @@
       },
       "minLength": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/minLength",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-minlength",
           "tags": [
             "web-features:textarea"
@@ -454,7 +472,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -465,6 +484,7 @@
       },
       "name": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/name",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fe-name",
           "tags": [
             "web-features:textarea"
@@ -496,7 +516,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -507,6 +528,7 @@
       },
       "placeholder": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/placeholder",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-placeholder",
           "tags": [
             "web-features:textarea"
@@ -542,7 +564,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -553,6 +576,7 @@
       },
       "readOnly": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/readOnly",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-readonly",
           "tags": [
             "web-features:textarea"
@@ -584,7 +608,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -595,6 +620,7 @@
       },
       "reportValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/reportValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-reportvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -624,7 +650,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -635,6 +662,7 @@
       },
       "required": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/required",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-required",
           "tags": [
             "web-features:textarea"
@@ -670,7 +698,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -681,6 +710,7 @@
       },
       "rows": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/rows",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-rows",
           "tags": [
             "web-features:textarea"
@@ -712,7 +742,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -723,6 +754,7 @@
       },
       "select": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/select",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-select-dev",
           "tags": [
             "web-features:textarea"
@@ -754,7 +786,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -765,7 +798,7 @@
       },
       "select_event": {
         "__compat": {
-          "description": "<code>select</code> event",
+          "description": "`select` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/select_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-select",
@@ -801,7 +834,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -812,16 +846,19 @@
       },
       "selectionchange_event": {
         "__compat": {
-          "description": "<code>selectionchange</code> event",
+          "description": "`selectionchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/selectionchange_event",
           "spec_url": [
             "https://w3c.github.io/selection-api/#selectionchange-event",
             "https://w3c.github.io/selection-api/#dom-globaleventhandlers-onselectionchange"
           ],
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "notes": "A <code>selectionchange</code> event is fired on <code>Document</code>, see <a href='https://developer.mozilla.org/docs/Web/API/Document/selectionchange_event'><code>Document</code>'s <code>selectionchange</code> event</a>. See <a href='https://crbug.com/1327098'>bug 1327098</a> for firing the event on <code>&lt;textarea&gt;</code> elements."
+              "notes": "A `selectionchange` event is fired on `Document`, see [`Document`'s `selectionchange` event](https://developer.mozilla.org/docs/Web/API/Document/selectionchange_event). See [bug 40840956](https://crbug.com/40840956) for firing the event on `&lt;textarea&gt;` elements."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -841,7 +878,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -852,6 +890,7 @@
       },
       "selectionDirection": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/selectionDirection",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-selectiondirection",
           "tags": [
             "web-features:textarea"
@@ -881,7 +920,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -892,6 +932,7 @@
       },
       "selectionEnd": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/selectionEnd",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-selectionend",
           "tags": [
             "web-features:textarea"
@@ -923,7 +964,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -934,6 +976,7 @@
       },
       "selectionStart": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/selectionStart",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-selectionstart",
           "tags": [
             "web-features:textarea"
@@ -965,7 +1008,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -976,6 +1020,7 @@
       },
       "setCustomValidity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/setCustomValidity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-setcustomvalidity-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -983,7 +1028,7 @@
           "support": {
             "chrome": {
               "version_added": "4",
-              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see <a href='https://crbug.com/828757'>bug 828757</a>."
+              "notes": "This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see [bug 41380670](https://crbug.com/41380670)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -1012,7 +1057,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1023,6 +1069,7 @@
       },
       "setRangeText": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/setRangeText",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-setrangetext-dev",
           "tags": [
             "web-features:textarea"
@@ -1048,7 +1095,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1059,6 +1107,7 @@
       },
       "setSelectionRange": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/setSelectionRange",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-setselectionrange-dev",
           "tags": [
             "web-features:textarea"
@@ -1090,7 +1139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1101,6 +1151,7 @@
       },
       "textLength": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/textLength",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-textlength",
           "tags": [
             "web-features:textarea"
@@ -1136,7 +1187,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1179,7 +1231,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1190,6 +1243,7 @@
       },
       "validationMessage": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/validationMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-validationmessage-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -1225,7 +1279,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1236,6 +1291,7 @@
       },
       "validity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/validity",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-constraint-validation-api:dom-cva-validity",
           "tags": [
             "web-features:constraint-validation"
@@ -1271,7 +1327,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1282,6 +1339,7 @@
       },
       "value": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/value",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-value-dev",
           "tags": [
             "web-features:textarea"
@@ -1313,7 +1371,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1324,6 +1383,7 @@
       },
       "willValidate": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/willValidate",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-willvalidate-dev",
           "tags": [
             "web-features:constraint-validation"
@@ -1357,7 +1417,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1368,6 +1429,7 @@
       },
       "wrap": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/wrap",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-wrap",
           "tags": [
             "web-features:textarea"
@@ -1399,7 +1461,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTimeElement.json b/api/HTMLTimeElement.json
index 6ff597276e64b7..cf4a104cc2c6ce 100644
--- a/api/HTMLTimeElement.json
+++ b/api/HTMLTimeElement.json
@@ -46,7 +46,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -100,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTitleElement.json b/api/HTMLTitleElement.json
index c07fdf1e7a6de0..eb113f1d4d969e 100644
--- a/api/HTMLTitleElement.json
+++ b/api/HTMLTitleElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLTrackElement.json b/api/HTMLTrackElement.json
index c54ffc26f4e576..2ca0aeb523233a 100644
--- a/api/HTMLTrackElement.json
+++ b/api/HTMLTrackElement.json
@@ -17,7 +17,7 @@
           },
           "firefox": {
             "version_added": "31",
-            "notes": "Before Firefox 50, text tracks would only load if the <code>&lt;track&gt;</code> element is in a document."
+            "notes": "Before Firefox 50, text tracks would only load if the `&lt;track&gt;` element is in a document."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -35,7 +35,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,7 +46,7 @@
       },
       "cuechange_event": {
         "__compat": {
-          "description": "<code>cuechange</code> event",
+          "description": "`cuechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/cuechange_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-cuechange",
@@ -62,7 +63,7 @@
               {
                 "version_added": "23",
                 "partial_implementation": true,
-                "notes": "The <code>oncuechange</code> event handler property is not supported."
+                "notes": "The `oncuechange` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -84,7 +85,7 @@
               {
                 "version_added": "15",
                 "partial_implementation": true,
-                "notes": "The <code>oncuechange</code> event handler property is not supported."
+                "notes": "The `oncuechange` event handler property is not supported."
               },
               {
                 "version_added": "12",
@@ -98,7 +99,7 @@
               {
                 "version_added": "14",
                 "partial_implementation": true,
-                "notes": "The <code>oncuechange</code> event handler property is not supported."
+                "notes": "The `oncuechange` event handler property is not supported."
               },
               {
                 "version_added": "12",
@@ -112,7 +113,7 @@
               {
                 "version_added": "6",
                 "partial_implementation": true,
-                "notes": "The <code>oncuechange</code> event handler property is not supported."
+                "notes": "The `oncuechange` event handler property is not supported."
               }
             ],
             "safari_ios": "mirror",
@@ -124,9 +125,10 @@
               {
                 "version_added": "≤37",
                 "partial_implementation": true,
-                "notes": "The <code>oncuechange</code> event handler property is not supported."
+                "notes": "The `oncuechange` event handler property is not supported."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,6 +139,7 @@
       },
       "default": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/default",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-default",
           "tags": [
             "web-features:text-tracks"
@@ -168,7 +171,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -179,6 +183,7 @@
       },
       "kind": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/kind",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-kind",
           "tags": [
             "web-features:text-tracks"
@@ -210,7 +215,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -221,6 +227,7 @@
       },
       "label": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/label",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-label",
           "tags": [
             "web-features:text-tracks"
@@ -252,7 +259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -263,6 +271,7 @@
       },
       "readyState": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/readyState",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-readystate-dev",
           "tags": [
             "web-features:text-tracks"
@@ -294,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -320,7 +330,7 @@
             },
             "firefox": {
               "version_added": "31",
-              "notes": "Before Firefox 50, setting the <code>src</code> property did not work properly."
+              "notes": "Before Firefox 50, setting the `src` property did not work properly."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -338,7 +348,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -349,6 +360,7 @@
       },
       "srclang": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/srclang",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-srclang",
           "tags": [
             "web-features:text-tracks"
@@ -380,7 +392,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -391,6 +404,7 @@
       },
       "track": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/track",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#dom-track-track-dev",
           "tags": [
             "web-features:text-tracks"
@@ -422,7 +436,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLUListElement.json b/api/HTMLUListElement.json
index 8b5720558f020a..053116cb3d55f8 100644
--- a/api/HTMLUListElement.json
+++ b/api/HTMLUListElement.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,7 +119,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HTMLUnknownElement.json b/api/HTMLUnknownElement.json
index 2d51f455ae4c7c..d7a47d1e5f0c4d 100644
--- a/api/HTMLUnknownElement.json
+++ b/api/HTMLUnknownElement.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/HTMLVideoElement.json b/api/HTMLVideoElement.json
index ac5b5bd75f0a15..4e7c2036385a81 100644
--- a/api/HTMLVideoElement.json
+++ b/api/HTMLVideoElement.json
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -60,7 +61,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
+              "version_added": "132",
               "impl_url": "https://bugzil.la/1800882"
             },
             "firefox_android": "mirror",
@@ -75,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +105,7 @@
               {
                 "version_added": "122",
                 "partial_implementation": true,
-                "notes": "When this property is set to <code>true</code>, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP."
+                "notes": "When this property is set to `true`, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP."
               },
               {
                 "version_added": "116",
@@ -111,7 +113,7 @@
                 "partial_implementation": true,
                 "notes": [
                   "This property is undefined, but still has an effect if set to a value.",
-                  "When this property is set to <code>true</code>, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP."
+                  "When this property is set to `true`, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP."
                 ]
               }
             ],
@@ -129,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,7 +143,7 @@
       },
       "enterpictureinpicture_event": {
         "__compat": {
-          "description": "<code>enterpictureinpicture</code> event",
+          "description": "`enterpictureinpicture` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/enterpictureinpicture_event",
           "spec_url": [
             "https://w3c.github.io/picture-in-picture/#eventdef-htmlvideoelement-enterpictureinpicture",
@@ -175,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,7 +218,8 @@
               "version_added": "12.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,7 +266,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -272,7 +278,7 @@
       },
       "leavepictureinpicture_event": {
         "__compat": {
-          "description": "<code>leavepictureinpicture</code> event",
+          "description": "`leavepictureinpicture` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/leavepictureinpicture_event",
           "spec_url": [
             "https://w3c.github.io/picture-in-picture/#eventdef-htmlvideoelement-leavepictureinpicture",
@@ -307,7 +313,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,7 +346,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -371,7 +379,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -403,7 +412,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -435,7 +445,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -467,7 +478,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -499,7 +511,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -532,7 +545,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -579,7 +593,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -621,7 +636,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -644,10 +660,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1800882",
-              "partial_implementation": true,
-              "notes": "The <code>metadata</code> argument of the callback function does not support the following properties: <code>processingDuration</code> (<a href='https://bugzil.la/1908246'>bug 1908246</a>), <code>captureTime</code>, <code>receiveTime</code>, and <code>rtpTimestamp</code> (<a href='https://bugzil.la/1908245'>bug 1908245</a>)."
+              "version_added": "132",
+              "impl_url": [
+                "https://bugzil.la/1800882",
+                "https://bugzil.la/1908245"
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -661,7 +678,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -672,7 +690,7 @@
       },
       "resize_event": {
         "__compat": {
-          "description": "<code>resize</code> event",
+          "description": "`resize` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/resize_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-resize",
@@ -694,7 +712,7 @@
                 "version_added": "12",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "The <code>onresize</code> event handler property is not supported."
+                "notes": "The `onresize` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -704,7 +722,7 @@
             "ie": {
               "version_added": "9",
               "partial_implementation": true,
-              "notes": "The <code>onresize</code> event handler property is not supported."
+              "notes": "The `onresize` event handler property is not supported."
             },
             "oculus": "mirror",
             "opera": {
@@ -722,7 +740,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -769,7 +788,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -816,7 +836,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -863,7 +884,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HashChangeEvent.json b/api/HashChangeEvent.json
index b7bbebaae29850..a6f6a26235313f 100644
--- a/api/HashChangeEvent.json
+++ b/api/HashChangeEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/HashChangeEvent",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-hashchangeevent-interface",
+        "tags": [
+          "web-features:hashchange"
+        ],
         "support": {
           "chrome": {
             "version_added": "8"
@@ -33,7 +36,8 @@
             "version_added": "5"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,9 +47,12 @@
       },
       "HashChangeEvent": {
         "__compat": {
-          "description": "<code>HashChangeEvent()</code> constructor",
+          "description": "`HashChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HashChangeEvent/HashChangeEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-hashchangeevent-interface",
+          "tags": [
+            "web-features:hashchange"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -82,6 +90,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HashChangeEvent/newURL",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-hashchangeevent-newurl-dev",
+          "tags": [
+            "web-features:hashchange"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -109,7 +120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -122,6 +134,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HashChangeEvent/oldURL",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-hashchangeevent-oldurl-dev",
+          "tags": [
+            "web-features:hashchange"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -149,7 +164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Headers.json b/api/Headers.json
index fa7a554c80b720..7582e13f5df9a8 100644
--- a/api/Headers.json
+++ b/api/Headers.json
@@ -36,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,7 +47,7 @@
       },
       "Headers": {
         "__compat": {
-          "description": "<code>Headers()</code> constructor",
+          "description": "`Headers()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Headers/Headers",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-headers①",
           "tags": [
@@ -81,7 +82,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,7 +128,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,7 +174,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -183,6 +187,9 @@
       "entries": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Headers/entries",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "42"
@@ -212,7 +219,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,6 +232,9 @@
       "forEach": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Headers/forEach",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "42"
@@ -253,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -272,7 +284,7 @@
           "support": {
             "chrome": {
               "version_added": "42",
-              "notes": "Before version 57, <code>get()</code> returns only the first value for the specified header."
+              "notes": "Before version 57, `get()` returns only the first value for the specified header."
             },
             "chrome_android": "mirror",
             "deno": {
@@ -283,7 +295,7 @@
             },
             "firefox": {
               "version_added": "39",
-              "notes": "Before version 52, <code>get()</code> returns only the first value for the specified header."
+              "notes": "Before version 52, `get()` returns only the first value for the specified header."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -300,7 +312,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -313,6 +326,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Headers/getSetCookie",
           "spec_url": "https://fetch.spec.whatwg.org/#dom-headers-getsetcookie",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "113"
@@ -340,7 +356,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -385,7 +402,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -397,6 +415,9 @@
       "iterate_combined_duplicates": {
         "__compat": {
           "description": "Iteration combines duplicate header names",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -423,7 +444,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -435,6 +457,9 @@
       "iterate_lexicographically": {
         "__compat": {
           "description": "Iteration is lexicographically sorted",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -464,7 +489,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -476,6 +502,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Headers/keys",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "42"
@@ -505,7 +534,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -550,7 +580,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -562,6 +593,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Headers/values",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "42"
@@ -591,7 +625,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -632,7 +667,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Highlight.json b/api/Highlight.json
index 7496f74ef7c1bb..694c0a34a3979e 100644
--- a/api/Highlight.json
+++ b/api/Highlight.json
@@ -29,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,7 +40,7 @@
       },
       "Highlight": {
         "__compat": {
-          "description": "<code>Highlight()</code> constructor",
+          "description": "`Highlight()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Highlight/Highlight",
           "spec_url": "https://drafts.csswg.org/css-highlight-api/#dom-highlight-highlight",
           "tags": [
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -141,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,7 +220,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -252,7 +258,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -289,7 +296,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -326,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -364,7 +373,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -401,7 +411,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -439,7 +450,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -476,7 +488,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -513,7 +526,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/HighlightRegistry.json b/api/HighlightRegistry.json
index 9e6f146e967ec9..145a0f259b285f 100644
--- a/api/HighlightRegistry.json
+++ b/api/HighlightRegistry.json
@@ -29,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -213,7 +218,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -250,7 +256,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -287,7 +294,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -324,7 +332,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -361,7 +370,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -398,7 +408,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -435,7 +446,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/History.json b/api/History.json
index 516c6804337026..5031e77907b2c9 100644
--- a/api/History.json
+++ b/api/History.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/History",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-history-interface",
+        "tags": [
+          "web-features:history"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/History/back",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-history-back-dev",
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/History/forward",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-history-forward-dev",
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/History/go",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-history-go-dev",
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -150,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +179,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/History/length",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-history-length-dev",
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -190,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -203,6 +223,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/History/pushState",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-history-pushstate-dev",
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -213,7 +236,7 @@
             },
             "firefox": {
               "version_added": "4",
-              "notes": "Until Firefox 5, the passed object is serialized using JSON. Starting in Firefox 6, the object is serialized using <a href='https://developer.mozilla.org/docs/DOM/The_structured_clone_algorithm'>the structured clone algorithm</a>. This allows a wider variety of objects to be safely passed."
+              "notes": "Until Firefox 5, the passed object is serialized using JSON. Starting in Firefox 6, the object is serialized using [the structured clone algorithm](https://developer.mozilla.org/docs/DOM/The_structured_clone_algorithm). This allows a wider variety of objects to be safely passed."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -235,7 +258,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -245,7 +269,7 @@
         },
         "unused_parameter": {
           "__compat": {
-            "description": "Whether the <code>unused</code> parameter is used",
+            "description": "Whether the `unused` parameter is used",
             "support": {
               "chrome": {
                 "version_added": false
@@ -264,14 +288,15 @@
               "opera_android": "mirror",
               "safari": {
                 "version_added": "5",
-                "notes": "This feature may be removed, see <a href='https://webkit.org/b/223190'>bug 223190</a>."
+                "notes": "This feature may be removed, see [bug 223190](https://webkit.org/b/223190)."
               },
               "safari_ios": {
                 "version_added": "4",
-                "notes": "This feature may be removed, see <a href='https://webkit.org/b/223190'>bug 223190</a>."
+                "notes": "This feature may be removed, see [bug 223190](https://webkit.org/b/223190)."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -285,6 +310,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/History/replaceState",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-history-replacestate-dev",
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -295,7 +323,7 @@
             },
             "firefox": {
               "version_added": "4",
-              "notes": "Until Firefox 5, the passed object is serialized using JSON. Starting in Firefox 6, the object is serialized using <a href='https://developer.mozilla.org/docs/DOM/The_structured_clone_algorithm'>the structured clone algorithm</a>. This allows a wider variety of objects to be safely passed."
+              "notes": "Until Firefox 5, the passed object is serialized using JSON. Starting in Firefox 6, the object is serialized using [the structured clone algorithm](https://developer.mozilla.org/docs/DOM/The_structured_clone_algorithm). This allows a wider variety of objects to be safely passed."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -317,7 +345,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -327,7 +356,7 @@
         },
         "unused_parameter": {
           "__compat": {
-            "description": "Whether the <code>unused</code> parameter is used",
+            "description": "Whether the `unused` parameter is used",
             "support": {
               "chrome": {
                 "version_added": false
@@ -346,14 +375,15 @@
               "opera_android": "mirror",
               "safari": {
                 "version_added": "5",
-                "notes": "This feature may be removed, see <a href='https://webkit.org/b/223190'>bug 223190</a>."
+                "notes": "This feature may be removed, see [bug 223190](https://webkit.org/b/223190)."
               },
               "safari_ios": {
                 "version_added": "4",
-                "notes": "This feature may be removed, see <a href='https://webkit.org/b/223190'>bug 223190</a>."
+                "notes": "This feature may be removed, see [bug 223190](https://webkit.org/b/223190)."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -367,6 +397,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/History/scrollRestoration",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-history-scroll-restoration-dev",
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -388,7 +421,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -401,6 +435,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/History/state",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-history-state-dev",
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "19"
@@ -428,7 +465,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBCursor.json b/api/IDBCursor.json
index 16f4fb1d5e4adf..48eb5c6df79ac1 100644
--- a/api/IDBCursor.json
+++ b/api/IDBCursor.json
@@ -70,7 +70,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -104,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,7 +183,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -216,7 +220,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -292,7 +298,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -330,7 +337,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -364,7 +372,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -403,7 +412,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -437,7 +447,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -475,7 +486,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -513,7 +525,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBCursorWithValue.json b/api/IDBCursorWithValue.json
index 8a6e91efab4924..015060188e9ad9 100644
--- a/api/IDBCursorWithValue.json
+++ b/api/IDBCursorWithValue.json
@@ -56,7 +56,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -90,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBDatabase.json b/api/IDBDatabase.json
index 8ef3a8fae3ca33..bcbce8eb6e340d 100644
--- a/api/IDBDatabase.json
+++ b/api/IDBDatabase.json
@@ -56,7 +56,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -90,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,7 @@
       },
       "close_event": {
         "__compat": {
-          "description": "<code>close</code> event",
+          "description": "`close` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBDatabase/close_event",
           "spec_url": [
             "https://w3c.github.io/IndexedDB/#closing-connection",
@@ -168,7 +171,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +210,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -244,7 +249,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -282,7 +288,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -320,7 +327,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -358,7 +366,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -366,9 +375,9 @@
             "deprecated": false
           }
         },
-        "option_durability_parameter_readwriteflush": {
+        "mode_parameter_readwriteflush": {
           "__compat": {
-            "description": "<code>option.durability</code> parameter supports <code>readwriteflush</code>",
+            "description": "`mode` parameter supports `readwriteflush`",
             "support": {
               "chrome": {
                 "version_added": false
@@ -397,7 +406,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -436,7 +446,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -447,7 +458,7 @@
       },
       "versionchange_event": {
         "__compat": {
-          "description": "<code>versionchange</code> event",
+          "description": "`versionchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBDatabase/versionchange_event",
           "spec_url": [
             "https://w3c.github.io/IndexedDB/#eventdef-idbdatabase-versionchange",
@@ -478,7 +489,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBFactory.json b/api/IDBFactory.json
index a1d0d73069c9c7..f1cdb647b07c56 100644
--- a/api/IDBFactory.json
+++ b/api/IDBFactory.json
@@ -56,7 +56,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -90,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,7 +204,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,52 +238,31 @@
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
-            "safari": {
-              "version_added": "8"
-            },
+            "safari": [
+              {
+                "version_added": "15"
+              },
+              {
+                "version_added": "14",
+                "version_removed": "15",
+                "partial_implementation": true,
+                "notes": "In some releases of Safari 14, the first `indexedDB.open()` call hangs forever, see [bug 226547](https://webkit.org/b/226547)."
+              },
+              {
+                "version_added": "8",
+                "version_removed": "14"
+              }
+            ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
-        },
-        "options_parameter": {
-          "__compat": {
-            "description": "<code>options</code> parameter for setting temporary/persistent storage.",
-            "support": {
-              "chrome": {
-                "version_added": false
-              },
-              "chrome_android": "mirror",
-              "edge": "mirror",
-              "firefox": {
-                "version_added": "26",
-                "version_removed": "104"
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": false
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": false
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": false,
-              "deprecated": true
-            }
-          }
         }
       }
     }
diff --git a/api/IDBIndex.json b/api/IDBIndex.json
index a7fab6cf238e6f..0e3e5ed022f8fa 100644
--- a/api/IDBIndex.json
+++ b/api/IDBIndex.json
@@ -56,7 +56,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -90,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -166,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,7 +204,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -234,7 +239,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -272,7 +278,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -312,7 +319,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -350,7 +358,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -390,7 +399,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -428,7 +438,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -466,7 +477,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -476,7 +488,7 @@
         },
         "renaming_through_name_setter": {
           "__compat": {
-            "description": "Renaming through <code>name</code> setter",
+            "description": "Renaming through `name` setter",
             "support": {
               "chrome": {
                 "version_added": "55"
@@ -500,7 +512,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -539,7 +552,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -577,7 +591,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -615,7 +630,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -653,7 +669,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBKeyRange.json b/api/IDBKeyRange.json
index 61df0a3175d554..abfc85769ab5c5 100644
--- a/api/IDBKeyRange.json
+++ b/api/IDBKeyRange.json
@@ -61,7 +61,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -95,7 +96,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,7 +108,7 @@
       },
       "bound_static": {
         "__compat": {
-          "description": "<code>bound()</code> static method",
+          "description": "`bound()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBKeyRange/bound_static",
           "spec_url": "https://w3c.github.io/IndexedDB/#ref-for-dom-idbkeyrange-bound①",
           "support": {
@@ -134,7 +136,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,7 +171,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +210,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -217,7 +222,7 @@
       },
       "lowerBound_static": {
         "__compat": {
-          "description": "<code>lowerBound()</code> static method",
+          "description": "`lowerBound()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBKeyRange/lowerBound_static",
           "spec_url": "https://w3c.github.io/IndexedDB/#ref-for-dom-idbkeyrange-lowerbound①",
           "support": {
@@ -245,7 +250,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -283,7 +289,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -294,7 +301,7 @@
       },
       "only_static": {
         "__compat": {
-          "description": "<code>lowerBound()</code> static method",
+          "description": "`lowerBound()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBKeyRange/only_static",
           "spec_url": "https://w3c.github.io/IndexedDB/#ref-for-dom-idbkeyrange-only①",
           "support": {
@@ -322,7 +329,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,7 +368,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -371,7 +380,7 @@
       },
       "upperBound_static": {
         "__compat": {
-          "description": "<code>upperBound()</code> static method",
+          "description": "`upperBound()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBKeyRange/upperBound_static",
           "spec_url": "https://w3c.github.io/IndexedDB/#ref-for-dom-idbkeyrange-upperbound①",
           "support": {
@@ -399,7 +408,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -437,7 +447,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBObjectStore.json b/api/IDBObjectStore.json
index 4451f11ce77ed8..bb1bb1d91ad1aa 100644
--- a/api/IDBObjectStore.json
+++ b/api/IDBObjectStore.json
@@ -56,7 +56,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -90,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -164,7 +167,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -202,7 +206,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -240,7 +245,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -278,7 +284,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -288,7 +295,7 @@
         },
         "options_locale_parameter": {
           "__compat": {
-            "description": "<code>options.locale</code> parameter",
+            "description": "`options.locale` parameter",
             "support": {
               "chrome": {
                 "version_added": false
@@ -310,7 +317,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -349,7 +357,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -387,7 +396,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -425,7 +435,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -461,7 +472,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -497,7 +509,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -537,7 +550,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -575,7 +589,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -613,7 +628,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -651,7 +667,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -689,7 +706,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -699,7 +717,7 @@
         },
         "renaming_through_name_setter": {
           "__compat": {
-            "description": "Renaming through <code>name</code> setter",
+            "description": "Renaming through `name` setter",
             "support": {
               "chrome": {
                 "version_added": "55"
@@ -723,7 +741,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -762,7 +781,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -796,7 +816,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -834,7 +855,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -872,7 +894,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBOpenDBRequest.json b/api/IDBOpenDBRequest.json
index 66e935c1b18c32..d4b47f4ffa372c 100644
--- a/api/IDBOpenDBRequest.json
+++ b/api/IDBOpenDBRequest.json
@@ -56,7 +56,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -90,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,7 @@
       },
       "blocked_event": {
         "__compat": {
-          "description": "<code>blocked</code> event",
+          "description": "`blocked` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBOpenDBRequest/blocked_event",
           "spec_url": "https://w3c.github.io/IndexedDB/#eventdef-idbopendbrequest-blocked",
           "support": {
@@ -129,7 +131,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,7 +143,7 @@
       },
       "upgradeneeded_event": {
         "__compat": {
-          "description": "<code>upgradeneeded</code> event",
+          "description": "`upgradeneeded` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBOpenDBRequest/upgradeneeded_event",
           "spec_url": "https://w3c.github.io/IndexedDB/#eventdef-idbopendbrequest-upgradeneeded",
           "support": {
@@ -168,7 +171,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBRequest.json b/api/IDBRequest.json
index d3dccf64141ba6..9045d929dd7369 100644
--- a/api/IDBRequest.json
+++ b/api/IDBRequest.json
@@ -65,7 +65,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -99,7 +100,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,7 +150,7 @@
         },
         "DOMException": {
           "__compat": {
-            "description": "<code>DOMException</code> value instead of <code>DOMError</code>",
+            "description": "`DOMException` value instead of `DOMError`",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -171,7 +174,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -183,7 +187,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBRequest/error_event",
           "spec_url": "https://w3c.github.io/IndexedDB/#eventdef-idbrequest-error",
           "support": {
@@ -211,7 +215,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,7 +254,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -287,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -325,7 +332,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -336,7 +344,7 @@
       },
       "success_event": {
         "__compat": {
-          "description": "<code>success</code> event",
+          "description": "`success` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBRequest/success_event",
           "spec_url": "https://w3c.github.io/IndexedDB/#eventdef-idbrequest-success",
           "support": {
@@ -364,7 +372,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -402,7 +411,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBTransaction.json b/api/IDBTransaction.json
index 843482368143f4..2e4872e4e320ea 100644
--- a/api/IDBTransaction.json
+++ b/api/IDBTransaction.json
@@ -56,7 +56,8 @@
               "version_added": "≤37",
               "version_removed": "57"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -90,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,7 @@
       },
       "abort_event": {
         "__compat": {
-          "description": "<code>abort</code> event",
+          "description": "`abort` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBTransaction/abort_event",
           "spec_url": "https://w3c.github.io/IndexedDB/#eventdef-idbtransaction-abort",
           "support": {
@@ -167,7 +170,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,7 +217,7 @@
       },
       "complete_event": {
         "__compat": {
-          "description": "<code>complete</code> event",
+          "description": "`complete` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBTransaction/complete_event",
           "spec_url": "https://w3c.github.io/IndexedDB/#eventdef-idbtransaction-complete",
           "support": {
@@ -240,7 +245,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -278,7 +284,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,7 +321,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -352,7 +360,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -362,7 +371,7 @@
         },
         "DOMException": {
           "__compat": {
-            "description": "<code>DOMException</code> value instead of <code>DOMError</code>",
+            "description": "`DOMException` value instead of `DOMError`",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -386,7 +395,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -398,7 +408,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBTransaction/error_event",
           "spec_url": "https://w3c.github.io/IndexedDB/#eventdef-idbrequest-error",
           "support": {
@@ -426,7 +436,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -464,7 +475,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -502,7 +514,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -513,7 +526,7 @@
       },
       "objectStoreNames": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBTransaction/ObjectStoreNames",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBTransaction/objectStoreNames",
           "spec_url": "https://w3c.github.io/IndexedDB/#ref-for-dom-idbtransaction-objectstorenames①",
           "support": {
             "chrome": {
@@ -538,7 +551,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IDBVersionChangeEvent.json b/api/IDBVersionChangeEvent.json
index 341745204a8ec0..42d47344f7195b 100644
--- a/api/IDBVersionChangeEvent.json
+++ b/api/IDBVersionChangeEvent.json
@@ -50,7 +50,8 @@
               "prefix": "webkit",
               "version_added": "≤37"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -60,7 +61,7 @@
       },
       "IDBVersionChangeEvent": {
         "__compat": {
-          "description": "<code>IDBVersionChangeEvent()</code> constructor",
+          "description": "`IDBVersionChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IDBVersionChangeEvent/IDBVersionChangeEvent",
           "spec_url": "https://w3c.github.io/IndexedDB/#dom-idbversionchangeevent-idbversionchangeevent",
           "support": {
@@ -84,7 +85,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -157,7 +160,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,7 +199,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IIRFilterNode.json b/api/IIRFilterNode.json
index 8ab3788a7beb23..4e44bc1fcd0dff 100644
--- a/api/IIRFilterNode.json
+++ b/api/IIRFilterNode.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,7 @@
       },
       "IIRFilterNode": {
         "__compat": {
-          "description": "<code>IIRFilterNode()</code> constructor",
+          "description": "`IIRFilterNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IIRFilterNode/IIRFilterNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-iirfilternode-constructor-iirfilternode",
           "tags": [
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IdentityCredential.json b/api/IdentityCredential.json
index 2aaa73243a179c..12b41ec140a5cd 100644
--- a/api/IdentityCredential.json
+++ b/api/IdentityCredential.json
@@ -3,7 +3,10 @@
     "IdentityCredential": {
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdentityCredential",
-        "spec_url": "https://fedidcg.github.io/FedCM/#browser-api-identity-credential-interface",
+        "spec_url": "https://w3c-fedid.github.io/FedCM/#browser-api-identity-credential-interface",
+        "tags": [
+          "web-features:fedcm"
+        ],
         "support": {
           "chrome": {
             "version_added": "108"
@@ -27,7 +30,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,8 +41,8 @@
       },
       "disconnect_static": {
         "__compat": {
-          "description": "<code>disconnect()</code> static method",
-          "spec_url": "https://fedidcg.github.io/FedCM/#dom-identitycredential-disconnect",
+          "description": "`disconnect()` static method",
+          "spec_url": "https://w3c-fedid.github.io/FedCM/#dom-identitycredential-disconnect",
           "support": {
             "chrome": {
               "version_added": "122"
@@ -62,7 +66,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -97,7 +102,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -109,7 +115,10 @@
       "token": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdentityCredential/token",
-          "spec_url": "https://fedidcg.github.io/FedCM/#dom-identitycredential-token",
+          "spec_url": "https://w3c-fedid.github.io/FedCM/#dom-identitycredential-token",
+          "tags": [
+            "web-features:fedcm"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -133,7 +142,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/IdentityProvider.json b/api/IdentityProvider.json
index 3ce638fc09c90c..6878c62a61ca64 100644
--- a/api/IdentityProvider.json
+++ b/api/IdentityProvider.json
@@ -3,7 +3,7 @@
     "IdentityProvider": {
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdentityProvider",
-        "spec_url": "https://fedidcg.github.io/FedCM/#browser-api-identity-provider-interface",
+        "spec_url": "https://w3c-fedid.github.io/FedCM/#browser-api-identity-provider-interface",
         "support": {
           "chrome": {
             "version_added": "116"
@@ -27,7 +27,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +38,9 @@
       },
       "close_static": {
         "__compat": {
-          "description": "<code>close()</code> static method",
+          "description": "`close()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdentityProvider/close_static",
-          "spec_url": "https://fedidcg.github.io/FedCM/#dom-identityprovider-close",
+          "spec_url": "https://w3c-fedid.github.io/FedCM/#dom-identityprovider-close",
           "support": {
             "chrome": {
               "version_added": "120"
@@ -63,7 +64,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -74,9 +76,9 @@
       },
       "getUserInfo_static": {
         "__compat": {
-          "description": "<code>getUserInfo()</code> static method",
+          "description": "`getUserInfo()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdentityProvider/getUserInfo_static",
-          "spec_url": "https://fedidcg.github.io/FedCM/#dom-identityprovider-getuserinfo",
+          "spec_url": "https://w3c-fedid.github.io/FedCM/#dom-identityprovider-getuserinfo",
           "support": {
             "chrome": {
               "version_added": "116"
@@ -100,7 +102,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/IdleDeadline.json b/api/IdleDeadline.json
index 352eac3efffbb4..f0ce053a982d10 100644
--- a/api/IdleDeadline.json
+++ b/api/IdleDeadline.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdleDeadline",
         "spec_url": "https://w3c.github.io/requestidlecallback/#the-idledeadline-interface",
+        "tags": [
+          "web-features:requestidlecallback"
+        ],
         "support": {
           "chrome": {
             "version_added": "47"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdleDeadline/didTimeout",
           "spec_url": "https://w3c.github.io/requestidlecallback/#dom-idledeadline-didtimeout",
+          "tags": [
+            "web-features:requestidlecallback"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -72,6 +80,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdleDeadline/timeRemaining",
           "spec_url": "https://w3c.github.io/requestidlecallback/#dom-idledeadline-timeremaining",
+          "tags": [
+            "web-features:requestidlecallback"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -94,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IdleDetector.json b/api/IdleDetector.json
index 4a95c15cb0582c..b285c014f2230b 100644
--- a/api/IdleDetector.json
+++ b/api/IdleDetector.json
@@ -36,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -46,7 +47,7 @@
       },
       "IdleDetector": {
         "__compat": {
-          "description": "<code>IdleDetector()</code> constructor",
+          "description": "`IdleDetector()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdleDetector/IdleDetector",
           "spec_url": "https://wicg.github.io/idle-detection/#dom-idledetector-idledetector",
           "tags": [
@@ -81,7 +82,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -92,7 +94,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdleDetector/change_event",
           "spec_url": "https://wicg.github.io/idle-detection/#api-idledetector-onchange",
           "tags": [
@@ -127,7 +129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -138,7 +141,7 @@
       },
       "requestPermission_static": {
         "__compat": {
-          "description": "<code>requestPermission()</code> static method",
+          "description": "`requestPermission()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IdleDetector/requestPermission_static",
           "spec_url": "https://wicg.github.io/idle-detection/#api-idledetector-requestpermission",
           "tags": [
@@ -173,7 +176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -218,7 +222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -263,7 +268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -308,7 +314,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ImageBitmap.json b/api/ImageBitmap.json
index e7969de84de138..9615f4cab9b4d6 100644
--- a/api/ImageBitmap.json
+++ b/api/ImageBitmap.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageBitmap",
         "spec_url": "https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#imagebitmap",
+        "tags": [
+          "web-features:createimagebitmap"
+        ],
         "support": {
           "chrome": {
             "version_added": "50"
@@ -28,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageBitmap/close",
           "spec_url": "https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#dom-imagebitmap-close-dev",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -68,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageBitmap/height",
           "spec_url": "https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#dom-imagebitmap-height-dev",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -105,7 +116,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +130,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageBitmap/width",
           "spec_url": "https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#dom-imagebitmap-width-dev",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -142,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ImageBitmapRenderingContext.json b/api/ImageBitmapRenderingContext.json
index 2cd53c065957e4..72fd56b5537952 100644
--- a/api/ImageBitmapRenderingContext.json
+++ b/api/ImageBitmapRenderingContext.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageBitmapRenderingContext",
         "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#the-imagebitmaprenderingcontext-interface",
+        "tags": [
+          "web-features:createimagebitmap"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +39,11 @@
       },
       "canvas": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageBitmapRenderingContext/canvas",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-imagebitmaprenderingcontext-canvas-dev",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -57,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageBitmapRenderingContext/transferFromImageBitmap",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-imagebitmaprenderingcontext-transferfromimagebitmap-dev",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -98,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ImageCapture.json b/api/ImageCapture.json
index 87b214eda1b893..43d6a25ecc2dad 100644
--- a/api/ImageCapture.json
+++ b/api/ImageCapture.json
@@ -28,11 +28,19 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": "17.4",
+            "flags": [
+              {
+                "type": "preference",
+                "name": "Image Capture API",
+                "value_to_set": "true"
+              }
+            ]
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -42,7 +50,7 @@
       },
       "ImageCapture": {
         "__compat": {
-          "description": "<code>ImageCapture()</code> constructor",
+          "description": "`ImageCapture()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageCapture/ImageCapture",
           "spec_url": "https://w3c.github.io/mediacapture-image/#dom-imagecapture-imagecapture",
           "support": {
@@ -69,11 +77,19 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "17.4",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "Image Capture API",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -103,11 +119,19 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "17.4",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "Image Capture API",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -141,11 +165,19 @@
               "version_added": "43"
             },
             "safari": {
-              "version_added": false
+              "version_added": "17.4",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "Image Capture API",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -179,7 +211,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -201,7 +234,7 @@
                 "version_added": "59",
                 "version_removed": "60",
                 "partial_implementation": true,
-                "notes": "<code>photoSettings</code> parameter not supported."
+                "notes": "`photoSettings` parameter not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -224,11 +257,19 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "17.4",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "Image Capture API",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -266,11 +307,19 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "17.4",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "Image Capture API",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ImageData.json b/api/ImageData.json
index 59ac79de83ea66..1ea11d4a39be96 100644
--- a/api/ImageData.json
+++ b/api/ImageData.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageData",
         "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#imagedata",
+        "tags": [
+          "web-features:canvas-2d"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -36,7 +39,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,9 +50,12 @@
       },
       "ImageData": {
         "__compat": {
-          "description": "<code>ImageData()</code> constructor",
+          "description": "`ImageData()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageData/ImageData",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-imagedata-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "36"
@@ -75,7 +82,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageData/colorSpace",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-imagedata-colorspace",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "92"
@@ -150,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +176,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageData/data",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-imagedata-data-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -195,7 +211,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,6 +225,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageData/height",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-imagedata-height-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -240,7 +260,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -253,6 +274,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageData/width",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-imagedata-width-dev",
+          "tags": [
+            "web-features:canvas-2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -285,7 +309,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ImageDecoder.json b/api/ImageDecoder.json
index bd0b07cce45a4d..3bd2ebbac1ea54 100644
--- a/api/ImageDecoder.json
+++ b/api/ImageDecoder.json
@@ -14,8 +14,7 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false,
-            "impl_url": "https://bugzil.la/1749048"
+            "version_added": "133"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -29,17 +28,18 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
       },
       "ImageDecoder": {
         "__compat": {
-          "description": "<code>ImageDecoder()</code> constructor",
+          "description": "`ImageDecoder()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageDecoder/ImageDecoder",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-imagedecoder-imagedecoder",
           "tags": [
@@ -52,8 +52,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749048"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -67,10 +66,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -90,8 +90,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749048"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -105,10 +104,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -128,8 +128,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749048"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -143,10 +142,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -166,8 +166,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749048"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -181,10 +180,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -204,8 +204,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749048"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -219,10 +218,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -230,7 +230,7 @@
       },
       "isTypeSupported_static": {
         "__compat": {
-          "description": "<code>isTypeSupported()</code> static method",
+          "description": "`isTypeSupported()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ImageDecoder/isTypeSupported_static",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-imagedecoder-istypesupported",
           "tags": [
@@ -243,8 +243,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749048"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -258,10 +257,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -281,8 +281,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749048"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -296,10 +295,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -319,8 +319,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749048"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -334,10 +333,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -357,8 +357,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1749048"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -372,10 +371,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/ImageTrack.json b/api/ImageTrack.json
index 5f7d284487e13d..7ffd205d70f96c 100644
--- a/api/ImageTrack.json
+++ b/api/ImageTrack.json
@@ -14,7 +14,7 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": "133"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -28,10 +28,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
@@ -50,7 +51,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -64,10 +65,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -87,7 +89,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -101,10 +103,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -124,7 +127,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -138,10 +141,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -161,7 +165,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -175,10 +179,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/ImageTrackList.json b/api/ImageTrackList.json
index fd92ea5070642b..842b3f0775c398 100644
--- a/api/ImageTrackList.json
+++ b/api/ImageTrackList.json
@@ -14,7 +14,7 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": "133"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -28,10 +28,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
@@ -50,7 +51,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -64,10 +65,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -87,7 +89,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -101,10 +103,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -124,7 +127,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -138,10 +141,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -161,7 +165,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -175,10 +179,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/Ink.json b/api/Ink.json
index f1c7689ae867f5..cda1813decb948 100644
--- a/api/Ink.json
+++ b/api/Ink.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Ink",
         "spec_url": "https://wicg.github.io/ink-enhancement/#ink-interface",
+        "tags": [
+          "web-features:ink"
+        ],
         "support": {
           "chrome": {
             "version_added": "94"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Ink/requestPresenter",
           "spec_url": "https://wicg.github.io/ink-enhancement/#dom-ink-requestpresenter",
+          "tags": [
+            "web-features:ink"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/InputDeviceCapabilities.json b/api/InputDeviceCapabilities.json
index 65190c368db967..9265eb63d8c280 100644
--- a/api/InputDeviceCapabilities.json
+++ b/api/InputDeviceCapabilities.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -35,7 +36,7 @@
       },
       "InputDeviceCapabilities": {
         "__compat": {
-          "description": "<code>InputDeviceCapabilities()</code> constructor",
+          "description": "`InputDeviceCapabilities()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/InputDeviceCapabilities/InputDeviceCapabilities",
           "spec_url": "https://wicg.github.io/input-device-capabilities/#dom-inputdevicecapabilities-constructor",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -93,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/InputDeviceInfo.json b/api/InputDeviceInfo.json
index 9a3a3509e5d0f0..f7c43b61fee7c7 100644
--- a/api/InputDeviceInfo.json
+++ b/api/InputDeviceInfo.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/InputEvent.json b/api/InputEvent.json
index 6fff510639a120..d4c738008f0c93 100644
--- a/api/InputEvent.json
+++ b/api/InputEvent.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +42,7 @@
       },
       "InputEvent": {
         "__compat": {
-          "description": "<code>InputEvent()</code> constructor",
+          "description": "`InputEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/InputEvent/InputEvent",
           "spec_url": "https://w3c.github.io/uievents/#dom-inputevent-inputevent",
           "tags": [
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,7 +145,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -179,7 +183,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -216,7 +221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -226,7 +232,7 @@
         },
         "insertFromPasteAsQuotation": {
           "__compat": {
-            "description": "<code>insertFromPasteAsQuotation</code> input type",
+            "description": "`insertFromPasteAsQuotation` input type",
             "support": {
               "chrome": {
                 "version_added": false
@@ -248,7 +254,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -286,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/InstallEvent.json b/api/InstallEvent.json
index f00671b02ba5f5..86ebc225563664 100644
--- a/api/InstallEvent.json
+++ b/api/InstallEvent.json
@@ -27,7 +27,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -37,8 +40,9 @@
       },
       "InstallEvent": {
         "__compat": {
-          "description": "<code>InstallEvent()</code> constructor",
+          "description": "`InstallEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/InstallEvent/InstallEvent",
+          "spec_url": "https://w3c.github.io/ServiceWorker/#dom-installevent-installevent",
           "support": {
             "chrome": {
               "version_added": "40"
@@ -60,12 +64,13 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
           }
         }
       },
@@ -96,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/IntersectionObserver.json b/api/IntersectionObserver.json
index 46604ecae1bae3..2e40edafa2751b 100644
--- a/api/IntersectionObserver.json
+++ b/api/IntersectionObserver.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,7 @@
       },
       "IntersectionObserver": {
         "__compat": {
-          "description": "<code>IntersectionObserver()</code> constructor",
+          "description": "`IntersectionObserver()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/IntersectionObserver/IntersectionObserver",
           "spec_url": "https://w3c.github.io/IntersectionObserver/#dom-intersectionobserver-intersectionobserver",
           "tags": [
@@ -56,7 +57,7 @@
             },
             "firefox": {
               "version_added": "55",
-              "notes": "Before version 96, the constructor throws a <code>DOMException</code> if the <code>options.rootMargin</code> option is passed an empty string (see <a href='https://bugzil.la/1738791'>bug 1738791</a>)."
+              "notes": "Before version 96, the constructor throws a `DOMException` if the `options.rootMargin` option is passed an empty string (see [bug 1738791](https://bugzil.la/1738791))."
             },
             "firefox_android": {
               "version_added": "55"
@@ -72,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -82,7 +84,10 @@
         },
         "options_root_parameter_Document": {
           "__compat": {
-            "description": "<code>options.root</code> parameter can be a <code>Document</code>",
+            "description": "`options.root` parameter can be a `Document`",
+            "tags": [
+              "web-features:intersection-observer"
+            ],
             "support": {
               "chrome": {
                 "version_added": "81"
@@ -104,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -117,6 +123,9 @@
       "delay": {
         "__compat": {
           "spec_url": "https://w3c.github.io/IntersectionObserver/#dom-intersectionobserver-delay",
+          "tags": [
+            "web-features:intersection-observer"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -138,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -161,7 +171,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "15",
-              "notes": "Available since <a href='https://developer.microsoft.com/microsoft-edge/platform/status/intersectionobserver/'>Windows Insider Preview Build 14986</a>."
+              "notes": "Available since [Windows Insider Preview Build 14986](https://developer.microsoft.com/microsoft-edge/platform/status/intersectionobserver/)."
             },
             "firefox": {
               "version_added": "55"
@@ -178,7 +188,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -217,7 +228,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -256,7 +268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -292,11 +305,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "12.1",
-              "notes": "<code>rootMargin</code> does not work with <code>&lt;iframe&gt;</code>s."
+              "notes": "`rootMargin` does not work with `&lt;iframe&gt;`s."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -307,6 +321,9 @@
       },
       "scrollMargin": {
         "__compat": {
+          "tags": [
+            "web-features:intersection-observer"
+          ],
           "support": {
             "chrome": {
               "version_added": "120"
@@ -328,7 +345,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -351,7 +369,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "15",
-              "notes": "Available since <a href='https://developer.microsoft.com/microsoft-edge/platform/status/intersectionobserver/'>Windows Insider Preview Build 14986</a>."
+              "notes": "Available since [Windows Insider Preview Build 14986](https://developer.microsoft.com/microsoft-edge/platform/status/intersectionobserver/)."
             },
             "firefox": {
               "version_added": "55"
@@ -368,7 +386,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -407,7 +426,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -419,6 +439,9 @@
       "trackVisibility": {
         "__compat": {
           "spec_url": "https://w3c.github.io/IntersectionObserver/#dom-intersectionobserver-trackvisibility",
+          "tags": [
+            "web-features:intersection-observer"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -440,7 +463,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -463,7 +487,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "15",
-              "notes": "Available since <a href='https://developer.microsoft.com/microsoft-edge/platform/status/intersectionobserver/'>Windows Insider Preview Build 14986</a>."
+              "notes": "Available since [Windows Insider Preview Build 14986](https://developer.microsoft.com/microsoft-edge/platform/status/intersectionobserver/)."
             },
             "firefox": {
               "version_added": "55"
@@ -480,7 +504,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/IntersectionObserverEntry.json b/api/IntersectionObserverEntry.json
index cbd1788fab66b2..7bc183f2c99f40 100644
--- a/api/IntersectionObserverEntry.json
+++ b/api/IntersectionObserverEntry.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,10 @@
       },
       "IntersectionObserverEntry": {
         "__compat": {
-          "description": "<code>IntersectionObserverEntry()</code> constructor",
+          "description": "`IntersectionObserverEntry()` constructor",
+          "tags": [
+            "web-features:intersection-observer"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -65,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -104,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -182,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -221,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,6 +242,9 @@
       "isVisible": {
         "__compat": {
           "spec_url": "https://w3c.github.io/IntersectionObserver/#dom-intersectionobserverentry-isvisible",
+          "tags": [
+            "web-features:intersection-observer"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -254,7 +266,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -293,7 +306,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -332,7 +346,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -371,7 +386,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/InterventionReportBody.json b/api/InterventionReportBody.json
index e27eb26f81628b..828f4b45938a13 100644
--- a/api/InterventionReportBody.json
+++ b/api/InterventionReportBody.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -92,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -126,7 +129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -160,7 +164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -194,7 +199,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -228,7 +234,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/KHR_parallel_shader_compile.json b/api/KHR_parallel_shader_compile.json
index 10746c3081d5dd..b73aff1c39daac 100644
--- a/api/KHR_parallel_shader_compile.json
+++ b/api/KHR_parallel_shader_compile.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/KHR_parallel_shader_compile",
         "spec_url": "https://registry.khronos.org/webgl/extensions/KHR_parallel_shader_compile/",
+        "tags": [
+          "web-features:khr-parallel-shader-compile"
+        ],
         "support": {
           "chrome": {
             "version_added": "76"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/Keyboard.json b/api/Keyboard.json
index 83ce2530c21efa..a4b2281339961e 100644
--- a/api/Keyboard.json
+++ b/api/Keyboard.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -104,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -141,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/KeyboardEvent.json b/api/KeyboardEvent.json
index 4646bd516f71b5..61c232ac6f4e82 100644
--- a/api/KeyboardEvent.json
+++ b/api/KeyboardEvent.json
@@ -33,7 +33,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,7 +44,7 @@
       },
       "KeyboardEvent": {
         "__compat": {
-          "description": "<code>KeyboardEvent()</code> constructor",
+          "description": "`KeyboardEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/KeyboardEvent/KeyboardEvent",
           "spec_url": "https://w3c.github.io/uievents/#dom-keyboardevent-keyboardevent",
           "support": {
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,7 +113,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -153,7 +156,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -187,7 +191,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -229,7 +234,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -265,7 +271,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -275,7 +282,7 @@
         },
         "key_parameter_accel": {
           "__compat": {
-            "description": "<code>\"Accel\"</code> as <code>key</code> parameter",
+            "description": "`\"Accel\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -299,7 +306,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -310,7 +318,7 @@
         },
         "key_parameter_alt": {
           "__compat": {
-            "description": "<code>\"Alt\"</code> as <code>key</code> parameter",
+            "description": "`\"Alt\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -334,7 +342,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -345,7 +354,7 @@
         },
         "key_parameter_altgraph": {
           "__compat": {
-            "description": "<code>\"AltGraph\"</code> as <code>key</code> parameter",
+            "description": "`\"AltGraph\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -367,7 +376,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -378,7 +388,7 @@
         },
         "key_parameter_capslock": {
           "__compat": {
-            "description": "<code>\"CapsLock\"</code> as <code>key</code> parameter",
+            "description": "`\"CapsLock\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -402,7 +412,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -413,7 +424,7 @@
         },
         "key_parameter_control": {
           "__compat": {
-            "description": "<code>\"Control\"</code> as <code>key</code> parameter",
+            "description": "`\"Control\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -437,7 +448,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -448,7 +460,7 @@
         },
         "key_parameter_fn": {
           "__compat": {
-            "description": "<code>\"Fn\"</code> as <code>key</code> parameter",
+            "description": "`\"Fn\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -470,7 +482,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -481,7 +494,7 @@
         },
         "key_parameter_meta": {
           "__compat": {
-            "description": "<code>\"Meta\"</code> as <code>key</code> parameter",
+            "description": "`\"Meta\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -503,7 +516,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -514,7 +528,7 @@
         },
         "key_parameter_numlock": {
           "__compat": {
-            "description": "<code>\"NumLock\"</code> as <code>key</code> parameter",
+            "description": "`\"NumLock\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -538,7 +552,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -549,7 +564,7 @@
         },
         "key_parameter_os": {
           "__compat": {
-            "description": "<code>\"OS\"</code> as <code>key</code> parameter",
+            "description": "`\"OS\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -581,7 +596,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -592,7 +608,7 @@
         },
         "key_parameter_scrolllock": {
           "__compat": {
-            "description": "<code>\"ScrollLock\"</code> as <code>key</code> parameter",
+            "description": "`\"ScrollLock\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -624,7 +640,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -635,7 +652,7 @@
         },
         "key_parameter_shift": {
           "__compat": {
-            "description": "<code>\"Shift\"</code> as <code>key</code> parameter",
+            "description": "`\"Shift\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -659,7 +676,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -670,7 +688,7 @@
         },
         "key_parameter_symbol": {
           "__compat": {
-            "description": "<code>\"Symbol\"</code> as <code>key</code> parameter",
+            "description": "`\"Symbol\"` as `key` parameter",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -692,7 +710,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -735,7 +754,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -769,7 +789,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -806,7 +827,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -840,7 +862,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -876,7 +899,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -912,7 +936,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -955,7 +980,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -989,7 +1015,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1025,7 +1052,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1048,7 +1076,7 @@
             },
             "firefox": {
               "version_added": "1.5",
-              "notes": "Since Firefox 48, the Windows key is no longer treated as a <code>meta</code> key."
+              "notes": "Since Firefox 48, the Windows key is no longer treated as a `meta` key."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1068,7 +1096,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1085,7 +1114,7 @@
             "chrome": {
               "version_added": "32",
               "partial_implementation": true,
-              "notes": "On Windows and Linux, if multiple keys are held down, a <code>keydown</code> event for the most recently pressed key will trigger with <code>repeat</code> incorrectly set to <code>false</code>. See <a href='https://crbug.com/40940886'>bug 40940886</a>."
+              "notes": "On Windows and Linux, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See [bug 40940886](https://crbug.com/40940886)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -1106,7 +1135,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1148,7 +1178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/KeyboardLayoutMap.json b/api/KeyboardLayoutMap.json
index 4f2354425177b0..12b150d118fffd 100644
--- a/api/KeyboardLayoutMap.json
+++ b/api/KeyboardLayoutMap.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,6 +42,9 @@
       "entries": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/KeyboardLayoutMap/entries",
+          "tags": [
+            "web-features:keyboard-map"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -62,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -74,6 +79,9 @@
       "forEach": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/KeyboardLayoutMap/forEach",
+          "tags": [
+            "web-features:keyboard-map"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -95,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,6 +116,9 @@
       "get": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/KeyboardLayoutMap/get",
+          "tags": [
+            "web-features:keyboard-map"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -128,7 +140,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -140,6 +153,9 @@
       "has": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/KeyboardLayoutMap/has",
+          "tags": [
+            "web-features:keyboard-map"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -161,7 +177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -173,6 +190,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/KeyboardLayoutMap/keys",
+          "tags": [
+            "web-features:keyboard-map"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -194,7 +214,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -206,6 +227,9 @@
       "size": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/KeyboardLayoutMap/size",
+          "tags": [
+            "web-features:keyboard-map"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -227,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -239,6 +264,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/KeyboardLayoutMap/values",
+          "tags": [
+            "web-features:keyboard-map"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -260,7 +288,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -272,6 +301,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:keyboard-map"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -293,7 +325,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/KeyframeEffect.json b/api/KeyframeEffect.json
index eddf52032d9edd..97a3f86812e1ea 100644
--- a/api/KeyframeEffect.json
+++ b/api/KeyframeEffect.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "KeyframeEffect": {
         "__compat": {
-          "description": "<code>KeyframeEffect()</code> constructor",
+          "description": "`KeyframeEffect()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/KeyframeEffect/KeyframeEffect",
           "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-keyframeeffect-keyframeeffect",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,7 +166,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/416736"
+              "impl_url": "https://crbug.com/41133485"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -181,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -220,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -259,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -296,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/LargestContentfulPaint.json b/api/LargestContentfulPaint.json
index fb396a0a0e9213..77fa60ad2bc8bc 100644
--- a/api/LargestContentfulPaint.json
+++ b/api/LargestContentfulPaint.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint",
         "spec_url": "https://w3c.github.io/largest-contentful-paint/#sec-largest-contentful-paint-interface",
+        "tags": [
+          "web-features:largest-contentful-paint"
+        ],
         "support": {
           "chrome": {
             "version_added": "77"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/element",
           "spec_url": "https://w3c.github.io/largest-contentful-paint/#dom-largestcontentfulpaint-element",
+          "tags": [
+            "web-features:largest-contentful-paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/id",
           "spec_url": "https://w3c.github.io/largest-contentful-paint/#dom-largestcontentfulpaint-id",
+          "tags": [
+            "web-features:largest-contentful-paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/loadTime",
           "spec_url": "https://w3c.github.io/largest-contentful-paint/#dom-largestcontentfulpaint-loadtime",
+          "tags": [
+            "web-features:largest-contentful-paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/renderTime",
           "spec_url": "https://w3c.github.io/largest-contentful-paint/#dom-largestcontentfulpaint-rendertime",
+          "tags": [
+            "web-features:largest-contentful-paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -160,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/size",
           "spec_url": "https://w3c.github.io/largest-contentful-paint/#dom-largestcontentfulpaint-size",
+          "tags": [
+            "web-features:largest-contentful-paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -194,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/toJSON",
           "spec_url": "https://w3c.github.io/largest-contentful-paint/#dom-largestcontentfulpaint-tojson",
+          "tags": [
+            "web-features:largest-contentful-paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -228,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,6 +269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/url",
           "spec_url": "https://w3c.github.io/largest-contentful-paint/#dom-largestcontentfulpaint-url",
+          "tags": [
+            "web-features:largest-contentful-paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -262,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/LaunchParams.json b/api/LaunchParams.json
index 9e5100242dfebb..947d73bddae416 100644
--- a/api/LaunchParams.json
+++ b/api/LaunchParams.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +40,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LaunchParams/files",
           "spec_url": "https://wicg.github.io/web-app-launch/#ref-for-dom-launchparams-files-1",
+          "tags": [
+            "web-features:app-file-handlers"
+          ],
           "support": {
             "chrome": {
               "version_added": "102"
@@ -62,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -98,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/LaunchQueue.json b/api/LaunchQueue.json
index 8c7d39f38087b8..5034b98d888d57 100644
--- a/api/LaunchQueue.json
+++ b/api/LaunchQueue.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -62,7 +63,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/LayoutShift.json b/api/LayoutShift.json
index 57a3119e492e75..25c00e194ed786 100644
--- a/api/LayoutShift.json
+++ b/api/LayoutShift.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShift",
         "spec_url": "https://wicg.github.io/layout-instability/#sec-layout-shift",
+        "tags": [
+          "web-features:layout-instability"
+        ],
         "support": {
           "chrome": {
             "version_added": "77"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShift/hadRecentInput",
           "spec_url": "https://wicg.github.io/layout-instability/#dom-layoutshift-hadrecentinput",
+          "tags": [
+            "web-features:layout-instability"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShift/lastInputTime",
           "spec_url": "https://wicg.github.io/layout-instability/#dom-layoutshift-lastinputtime",
+          "tags": [
+            "web-features:layout-instability"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShift/sources",
           "spec_url": "https://wicg.github.io/layout-instability/#dom-layoutshift-sources",
+          "tags": [
+            "web-features:layout-instability"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShift/toJSON",
           "spec_url": "https://wicg.github.io/layout-instability/#dom-layoutshift-tojson",
+          "tags": [
+            "web-features:layout-instability"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -160,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -173,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShift/value",
           "spec_url": "https://wicg.github.io/layout-instability/#dom-layoutshift-value",
+          "tags": [
+            "web-features:layout-instability"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -194,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/LayoutShiftAttribution.json b/api/LayoutShiftAttribution.json
index c6a8af62da16ae..97a993ed55f25c 100644
--- a/api/LayoutShiftAttribution.json
+++ b/api/LayoutShiftAttribution.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShiftAttribution",
         "spec_url": "https://wicg.github.io/layout-instability/#sec-layout-shift-attribution",
+        "tags": [
+          "web-features:layout-instability"
+        ],
         "support": {
           "chrome": {
             "version_added": "84"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShiftAttribution/currentRect",
           "spec_url": "https://wicg.github.io/layout-instability/#dom-layoutshiftattribution-currentrect",
+          "tags": [
+            "web-features:layout-instability"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShiftAttribution/node",
           "spec_url": "https://wicg.github.io/layout-instability/#dom-layoutshiftattribution-node",
+          "tags": [
+            "web-features:layout-instability"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShiftAttribution/previousRect",
           "spec_url": "https://wicg.github.io/layout-instability/#dom-layoutshiftattribution-previousrect",
+          "tags": [
+            "web-features:layout-instability"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LayoutShiftAttribution/toJSON",
           "spec_url": "https://wicg.github.io/layout-instability/#sec-layout-shift-attribution",
+          "tags": [
+            "web-features:layout-instability"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -160,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/LinearAccelerationSensor.json b/api/LinearAccelerationSensor.json
index efaad028a07e8e..14d4675917e2c6 100644
--- a/api/LinearAccelerationSensor.json
+++ b/api/LinearAccelerationSensor.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "LinearAccelerationSensor": {
         "__compat": {
-          "description": "<code>LinearAccelerationSensor()</code> constructor",
+          "description": "`LinearAccelerationSensor()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/LinearAccelerationSensor/LinearAccelerationSensor",
           "spec_url": "https://w3c.github.io/accelerometer/#dom-linearaccelerationsensor-linearaccelerationsensor",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Location.json b/api/Location.json
index 6d13770a3847ab..f34b3fd8db55a9 100644
--- a/api/Location.json
+++ b/api/Location.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-location-interface",
+        "tags": [
+          "web-features:location"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -42,7 +45,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,6 +58,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/ancestorOrigins",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-ancestororigins-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "20"
@@ -85,7 +92,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -98,6 +106,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/assign",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-assign-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -112,7 +123,7 @@
                 }
               ],
               "partial_implementation": true,
-              "notes": "This method exists but has no effect in Deno. A location can be assigned using the <code>--location</code> runtime flag."
+              "notes": "This method exists but has no effect in Deno. A location can be assigned using the `--location` runtime flag."
             },
             "edge": {
               "version_added": "12"
@@ -138,7 +149,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/hash",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-hash-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -187,7 +202,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,6 +216,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/host",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-host-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -236,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,6 +269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/hostname",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-hostname-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -285,7 +308,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -298,6 +322,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/href",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-href-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -334,7 +361,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -347,6 +375,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/origin",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-origin-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "8"
@@ -371,7 +402,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "11",
-              "notes": "Intranet sites are set to Compatibility View, which will emulate IE7 and omit <code>window.location.origin</code>."
+              "notes": "Intranet sites are set to Compatibility View, which will emulate IE7 and omit `window.location.origin`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -383,7 +414,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -396,6 +428,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/pathname",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-pathname-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -415,12 +450,12 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 53, the <code>pathname</code> property returned wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&amp;b=false, <code>pathname</code> would return \"/x?a=true&amp;b=false\" rather than \"/x\"."
+              "notes": "Before Firefox 53, the `pathname` property returned wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&amp;b=false`, `pathname` would return \"/x?a=true&amp;b=false\" rather than \"/x\"."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "3",
-              "notes": "Internet Explorer does not provide the leading slash character in the <code>pathname</code> (<code>docs/Web/API/Location</code> instead of <code>/docs/Web/API/Location</code>)."
+              "notes": "Internet Explorer does not provide the leading slash character in the `pathname` (`docs/Web/API/Location` instead of `/docs/Web/API/Location`)."
             },
             "oculus": "mirror",
             "opera": {
@@ -434,7 +469,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -447,6 +483,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/port",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-port-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -483,7 +522,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -496,6 +536,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/protocol",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-protocol-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -532,7 +575,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -545,6 +589,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/reload",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-reload-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -563,7 +610,7 @@
             },
             "edge": {
               "version_added": "12",
-              "notes": "Before Edge 79, if a page added to <em>Trusted Sites</em> contains a cross-origin iframe, then calling <code>reload()</code> from within the iframe reloads the trusted page (in other words, the top page reloads, not the iframe)."
+              "notes": "Before Edge 79, if a page added to _Trusted Sites_ contains a cross-origin iframe, then calling `reload()` from within the iframe reloads the trusted page (in other words, the top page reloads, not the iframe)."
             },
             "firefox": {
               "version_added": "1"
@@ -571,7 +618,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5.5",
-              "notes": "If a page added to <em>Trusted Sites</em> contains a cross-origin iframe, then calling <code>reload()</code> from within the iframe reloads the trusted page (in other words, the top page reloads, not the iframe)."
+              "notes": "If a page added to _Trusted Sites_ contains a cross-origin iframe, then calling `reload()` from within the iframe reloads the trusted page (in other words, the top page reloads, not the iframe)."
             },
             "oculus": "mirror",
             "opera": {
@@ -585,7 +632,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -598,6 +646,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/replace",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-replace-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -612,7 +663,7 @@
                 }
               ],
               "partial_implementation": true,
-              "notes": "This method exists but has no effect in Deno. A location can be assigned using the <code>--location</code> runtime flag."
+              "notes": "This method exists but has no effect in Deno. A location can be assigned using the `--location` runtime flag."
             },
             "edge": {
               "version_added": "12"
@@ -636,7 +687,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -649,6 +701,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/search",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-search-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -668,7 +723,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 53, the <code>search</code> property returned wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&amp;b=false, <code>search</code> would return \"\", rather than \"?a=true&amp;b=false\"."
+              "notes": "Before Firefox 53, the `search` property returned wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&amp;b=false`, `search` would return \"\", rather than \"?a=true&amp;b=false\"."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -686,7 +741,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -699,6 +755,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Location/toString",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-location-href-dev",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -722,7 +781,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "11",
-              "notes": "Intranet sites are set to Compatibility View, which will emulate IE7 and omit <code>window.location.toString</code>."
+              "notes": "Intranet sites are set to Compatibility View, which will emulate IE7 and omit `window.location.toString`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -732,7 +791,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Lock.json b/api/Lock.json
index a5f829a2475f62..541f76e019357a 100644
--- a/api/Lock.json
+++ b/api/Lock.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/LockManager.json b/api/LockManager.json
index 8f22864f433dad..0c020e72b85917 100644
--- a/api/LockManager.json
+++ b/api/LockManager.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MIDIAccess.json b/api/MIDIAccess.json
index 692a61e1cbca9c..82cde059a42013 100644
--- a/api/MIDIAccess.json
+++ b/api/MIDIAccess.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -70,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -121,7 +124,7 @@
       },
       "statechange_event": {
         "__compat": {
-          "description": "<code>statechange</code> event",
+          "description": "`statechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MIDIAccess/statechange_event",
           "spec_url": "https://webaudio.github.io/web-midi-api/#dom-midiaccess-onstatechange",
           "tags": [
@@ -151,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -191,7 +195,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MIDIConnectionEvent.json b/api/MIDIConnectionEvent.json
index f75215bfa7e484..f00d91c5d6f5a7 100644
--- a/api/MIDIConnectionEvent.json
+++ b/api/MIDIConnectionEvent.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +42,7 @@
       },
       "MIDIConnectionEvent": {
         "__compat": {
-          "description": "<code>MIDIConnectionEvent()</code> constructor",
+          "description": "`MIDIConnectionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MIDIConnectionEvent/MIDIConnectionEvent",
           "spec_url": "https://webaudio.github.io/web-midi-api/#dom-midiconnectionevent-constructor",
           "tags": [
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,7 +113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MIDIInput.json b/api/MIDIInput.json
index 4c0ec1ef1f57d6..a03248e96e1902 100644
--- a/api/MIDIInput.json
+++ b/api/MIDIInput.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +42,7 @@
       },
       "midimessage_event": {
         "__compat": {
-          "description": "<code>midimessage</code> event",
+          "description": "`midimessage` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MIDIInput/midimessage_event",
           "spec_url": "https://webaudio.github.io/web-midi-api/#dom-midiinput-onmidimessage",
           "tags": [
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MIDIInputMap.json b/api/MIDIInputMap.json
index 3fcdc5f6b1689a..e5036549282a4d 100644
--- a/api/MIDIInputMap.json
+++ b/api/MIDIInputMap.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -182,7 +186,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -220,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -258,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -296,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -335,7 +343,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MIDIMessageEvent.json b/api/MIDIMessageEvent.json
index 94c05296744b23..06ee9462952988 100644
--- a/api/MIDIMessageEvent.json
+++ b/api/MIDIMessageEvent.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +42,7 @@
       },
       "MIDIMessageEvent": {
         "__compat": {
-          "description": "<code>MIDIMessageEvent()</code> constructor",
+          "description": "`MIDIMessageEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MIDIMessageEvent/MIDIMessageEvent",
           "spec_url": "https://webaudio.github.io/web-midi-api/#dom-midimessageevent-constructor",
           "tags": [
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,7 +113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MIDIOutput.json b/api/MIDIOutput.json
index 790fb82ae98f20..e0c78109dd536a 100644
--- a/api/MIDIOutput.json
+++ b/api/MIDIOutput.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,7 +50,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/471798"
+              "impl_url": "https://crbug.com/40411677"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,7 +113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MIDIOutputMap.json b/api/MIDIOutputMap.json
index 92104377c34ed8..4b8d32b738eda5 100644
--- a/api/MIDIOutputMap.json
+++ b/api/MIDIOutputMap.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -182,7 +186,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -220,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -258,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -296,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -335,7 +343,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MIDIPort.json b/api/MIDIPort.json
index 06a23c6f3d5244..65cbf5b23b87b3 100644
--- a/api/MIDIPort.json
+++ b/api/MIDIPort.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -70,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,7 +153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,7 +194,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -230,7 +235,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -270,7 +276,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -310,7 +317,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -321,7 +329,7 @@
       },
       "statechange_event": {
         "__compat": {
-          "description": "<code>statechange</code> event",
+          "description": "`statechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MIDIPort/statechange_event",
           "spec_url": "https://webaudio.github.io/web-midi-api/#dom-midiport-onstatechange",
           "tags": [
@@ -351,7 +359,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -391,7 +400,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -431,7 +441,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ML.json b/api/ML.json
index 6827ec14a7146b..a8a8b594fbc74a 100644
--- a/api/ML.json
+++ b/api/ML.json
@@ -15,8 +15,7 @@
                 "name": "#web-machine-learning-neural-network",
                 "value_to_set": "Enabled"
               }
-            ],
-            "notes": "Currently supported on ChromeOS and Windows only."
+            ]
           },
           "chrome_android": {
             "version_added": false
@@ -40,7 +39,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -50,7 +50,7 @@
       },
       "createContext": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-ml-createcontext",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-ml-createcontext",
           "tags": [
             "web-features:webnn"
           ],
@@ -63,8 +63,7 @@
                   "name": "#web-machine-learning-neural-network",
                   "value_to_set": "Enabled"
                 }
-              ],
-              "notes": "Currently supported on ChromeOS and Windows only."
+              ]
             },
             "chrome_android": {
               "version_added": false
@@ -88,7 +87,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/MLContext.json b/api/MLContext.json
index 1b371bcf08a74e..1e404347747188 100644
--- a/api/MLContext.json
+++ b/api/MLContext.json
@@ -15,8 +15,7 @@
                 "name": "#web-machine-learning-neural-network",
                 "value_to_set": "Enabled"
               }
-            ],
-            "notes": "Currently supported on ChromeOS and Windows only."
+            ]
           },
           "chrome_android": {
             "version_added": false
@@ -40,7 +39,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -51,20 +51,114 @@
       "compute": {
         "__compat": {
           "spec_url": "https://www.w3.org/TR/webnn/#api-mlcontext-compute",
+          "support": {
+            "chrome": {
+              "version_added": "112",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "#web-machine-learning-neural-network",
+                  "value_to_set": "Enabled"
+                }
+              ]
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": true
+          }
+        }
+      },
+      "dispatch": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlcontext-dispatch",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": {
-              "version_added": "112",
+              "version_added": "128",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "#web-machine-learning-neural-network",
+                  "value_to_set": "Enabled"
+                }
+              ]
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "opSupportLimits": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlcontext-opsupportlimits",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "128",
               "flags": [
                 {
                   "type": "preference",
                   "name": "#web-machine-learning-neural-network",
                   "value_to_set": "Enabled"
                 }
-              ],
-              "notes": "Currently supported on ChromeOS and Windows only."
+              ]
             },
             "chrome_android": {
               "version_added": false
@@ -88,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/MLGraph.json b/api/MLGraph.json
index c871017f3ba9ca..7310389e19cd41 100644
--- a/api/MLGraph.json
+++ b/api/MLGraph.json
@@ -39,7 +39,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
diff --git a/api/MLGraphBuilder.json b/api/MLGraphBuilder.json
index 42dfe8c5c0457c..810701619df865 100644
--- a/api/MLGraphBuilder.json
+++ b/api/MLGraphBuilder.json
@@ -15,8 +15,7 @@
                 "type": "preference",
                 "value_to_set": "Enabled"
               }
-            ],
-            "notes": "Currently supported on ChromeOS and Windows only."
+            ]
           },
           "chrome_android": {
             "version_added": false
@@ -40,7 +39,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -50,7 +50,7 @@
       },
       "MLGraphBuilder": {
         "__compat": {
-          "description": "<code>MLGraphBuilder()</code> constructor",
+          "description": "`MLGraphBuilder()` constructor",
           "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-constructor",
           "tags": [
             "web-features:webnn"
@@ -64,8 +64,7 @@
                   "type": "preference",
                   "value_to_set": "Enabled"
                 }
-              ],
-              "notes": "Currently supported on ChromeOS and Windows only."
+              ]
             },
             "chrome_android": {
               "version_added": false
@@ -89,7 +88,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +107,7 @@
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -115,7 +115,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "121",
@@ -126,7 +126,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
                 "version_added": "116",
@@ -137,7 +137,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -162,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -188,7 +189,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "119",
@@ -199,7 +200,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
                 "version_added": "112",
@@ -210,7 +211,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -235,7 +236,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -251,17 +253,41 @@
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on CPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "128",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -284,7 +310,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -300,17 +327,41 @@
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on CPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "128",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -333,7 +384,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -351,7 +403,7 @@
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -359,7 +411,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "119",
@@ -370,7 +422,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
                 "version_added": "112",
@@ -381,7 +433,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -406,7 +458,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -422,17 +475,41 @@
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on CPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "127",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -455,7 +532,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -503,7 +581,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -519,17 +598,41 @@
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on CPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "124",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -552,7 +655,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -570,7 +674,7 @@
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -578,7 +682,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "121",
@@ -589,7 +693,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
                 "version_added": "116",
@@ -600,7 +704,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -625,7 +729,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -643,7 +748,7 @@
           "support": {
             "chrome": [
               {
-                "version_added": "124",
+                "version_added": "125",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -651,7 +756,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "119",
@@ -662,7 +767,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
                 "version_added": "112",
@@ -673,7 +778,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -698,7 +803,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -716,7 +822,7 @@
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "125",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -724,7 +830,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "120",
@@ -735,7 +841,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
                 "version_added": "113",
@@ -746,7 +852,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -771,7 +877,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -789,7 +896,7 @@
           "support": {
             "chrome": [
               {
-                "version_added": "112",
+                "version_added": "123",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -797,7 +904,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "112",
@@ -808,7 +915,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
                 "version_added": "112",
@@ -819,7 +926,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -844,7 +951,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -862,7 +970,7 @@
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "125",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -870,7 +978,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "119",
@@ -881,7 +989,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
                 "version_added": "112",
@@ -892,7 +1000,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -917,7 +1025,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -935,7 +1044,7 @@
           "support": {
             "chrome": [
               {
-                "version_added": "121",
+                "version_added": "128",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -943,10 +1052,21 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "113",
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -954,7 +1074,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -979,7 +1099,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -996,6 +1117,17 @@
           ],
           "support": {
             "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
               {
                 "version_added": "123",
                 "flags": [
@@ -1005,7 +1137,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
                 "version_added": "121",
@@ -1016,7 +1148,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -1041,7 +1173,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1050,27 +1183,16 @@
           }
         }
       },
-      "div": {
+      "cumulativeSum": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-div",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
-                "flags": [
-                  {
-                    "name": "#web-machine-learning-neural-network",
-                    "type": "preference",
-                    "value_to_set": "Enabled"
-                  }
-                ],
-                "notes": "Supported on CPUs on ChromeOS."
-              },
-              {
-                "version_added": "119",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1078,10 +1200,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "112",
+                "version_added": "131",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1089,7 +1211,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -1114,7 +1236,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1123,16 +1246,16 @@
           }
         }
       },
-      "elu": {
+      "dequantizeLinear": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-elu",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "133",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1140,10 +1263,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "121",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1151,10 +1274,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "115",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1162,7 +1285,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -1187,7 +1310,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1196,24 +1320,48 @@
           }
         }
       },
-      "equal": {
+      "div": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-equal",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-div",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "124",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "119",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -1236,7 +1384,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1245,24 +1394,48 @@
           }
         }
       },
-      "erf": {
+      "elu": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-erf",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-elu",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "115",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -1285,7 +1458,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1294,16 +1468,16 @@
           }
         }
       },
-      "exp": {
+      "equal": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-exp",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-equal",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1311,10 +1485,21 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "121",
+                "version_added": "125",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1322,7 +1507,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -1347,7 +1532,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1356,24 +1542,48 @@
           }
         }
       },
-      "expand": {
+      "erf": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-expand",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-erf",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "128",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -1396,7 +1606,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1405,16 +1616,16 @@
           }
         }
       },
-      "floor": {
+      "exp": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-floor",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-exp",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1422,10 +1633,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "121",
+                "version_added": "123",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1433,10 +1644,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "116",
+                "version_added": "121",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1444,7 +1655,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -1469,7 +1680,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1478,24 +1690,48 @@
           }
         }
       },
-      "gather": {
+      "expand": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-gather",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-expand",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "128",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "128",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -1518,7 +1754,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1527,16 +1764,16 @@
           }
         }
       },
-      "gemm": {
+      "floor": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-gemm",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-floor",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "124",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1544,10 +1781,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "119",
+                "version_added": "121",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1555,10 +1792,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
-                "version_added": "112",
+                "version_added": "116",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1566,7 +1803,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -1591,7 +1828,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1600,24 +1838,48 @@
           }
         }
       },
-      "greater": {
+      "gather": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-greater",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-gather",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -1640,7 +1902,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1649,24 +1912,48 @@
           }
         }
       },
-      "greaterOrEqual": {
+      "gatherElements": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-greaterorequal",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "133",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "132",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "132",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -1689,7 +1976,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1698,73 +1986,48 @@
           }
         }
       },
-      "gru": {
+      "gatherND": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-gru",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "124",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
-            "chrome_android": {
-              "version_added": false
-            },
-            "deno": {
-              "version_added": false
-            },
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "gruCell": {
-        "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-grucell",
-          "tags": [
-            "web-features:webnn"
-          ],
-          "support": {
-            "chrome": {
-              "version_added": "124",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "132",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "132",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "131",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -1787,7 +2050,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1796,24 +2060,48 @@
           }
         }
       },
-      "hardSigmoid": {
+      "gemm": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-hard-sigmoid",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-gemm",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "123",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "119",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -1836,7 +2124,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1845,16 +2134,16 @@
           }
         }
       },
-      "hardSwish": {
+      "greater": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-hard-swish",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-greater",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1862,10 +2151,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "123",
+                "version_added": "125",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1873,10 +2162,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "112",
+                "version_added": "122",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1884,7 +2173,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -1909,7 +2198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1918,24 +2208,48 @@
           }
         }
       },
-      "identity": {
+      "greaterOrEqual": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-identity",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-greaterorequal",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "125",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -1958,7 +2272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1967,16 +2282,16 @@
           }
         }
       },
-      "input": {
+      "gru": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-input",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-gru",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "133",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1984,10 +2299,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "121",
+                "version_added": "129",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -1995,10 +2310,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "116",
+                "version_added": "125",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2006,7 +2321,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -2031,7 +2346,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2040,24 +2356,48 @@
           }
         }
       },
-      "instanceNormalization": {
+      "gruCell": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-instancenorm",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-grucell",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "133",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "129",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "125",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -2080,7 +2420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2089,24 +2430,48 @@
           }
         }
       },
-      "l2Pool2d": {
+      "hardSigmoid": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-pool2d-l2",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-hard-sigmoid",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "123",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "123",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -2129,7 +2494,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2138,24 +2504,48 @@
           }
         }
       },
-      "layerNormalization": {
+      "hardSwish": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-layernorm",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-hard-swish",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "123",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -2178,7 +2568,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2187,16 +2578,16 @@
           }
         }
       },
-      "leakyRelu": {
+      "identity": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-leakyrelu",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-identity",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2204,10 +2595,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "121",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2215,10 +2606,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "113",
+                "version_added": "121",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2226,7 +2617,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -2251,7 +2642,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2260,24 +2652,48 @@
           }
         }
       },
-      "lesser": {
+      "input": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-lesser",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-input",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "124",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "116",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -2300,7 +2716,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2309,24 +2726,48 @@
           }
         }
       },
-      "lesserOrEqual": {
+      "instanceNormalization": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-lesserorequal",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-instancenorm",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "127",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -2349,7 +2790,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2358,24 +2800,37 @@
           }
         }
       },
-      "linear": {
+      "l2Pool2d": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-linear",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-pool2d-l2",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "123",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -2398,7 +2853,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2407,16 +2863,16 @@
           }
         }
       },
-      "log": {
+      "layerNormalization": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-log",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-layernorm",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "129",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2424,10 +2880,21 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "121",
+                "version_added": "127",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "122",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2435,7 +2902,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -2460,7 +2927,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2469,24 +2937,48 @@
           }
         }
       },
-      "logicalNot": {
+      "leakyRelu": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-logicalnot",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-leakyrelu",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "113",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -2509,7 +3001,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2518,73 +3011,48 @@
           }
         }
       },
-      "lstm": {
+      "lesser": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-lstm",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-lesser",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "124",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
-            "chrome_android": {
-              "version_added": false
-            },
-            "deno": {
-              "version_added": false
-            },
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "lstmCell": {
-        "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-lstmcell",
-          "tags": [
-            "web-features:webnn"
-          ],
-          "support": {
-            "chrome": {
-              "version_added": "124",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "125",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -2607,7 +3075,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2616,24 +3085,48 @@
           }
         }
       },
-      "matmul": {
+      "lesserOrEqual": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-matmul",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-lesserorequal",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "125",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -2656,7 +3149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2665,16 +3159,16 @@
           }
         }
       },
-      "max": {
+      "linear": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-max",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-linear",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2682,10 +3176,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "119",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2693,10 +3187,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "112",
+                "version_added": "122",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2704,7 +3198,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -2729,7 +3223,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2738,16 +3233,16 @@
           }
         }
       },
-      "maxPool2d": {
+      "log": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-pool2d-max",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-log",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2755,10 +3250,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "119",
+                "version_added": "123",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2766,10 +3261,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "112",
+                "version_added": "121",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2777,7 +3272,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -2802,7 +3297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2811,16 +3307,16 @@
           }
         }
       },
-      "min": {
+      "logicalAnd": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-min",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2828,10 +3324,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "119",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2839,10 +3335,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "112",
+                "version_added": "131",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2850,7 +3346,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -2875,7 +3371,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2884,16 +3381,16 @@
           }
         }
       },
-      "mul": {
+      "logicalNot": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-mul",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-logicalnot",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "128",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2901,10 +3398,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "119",
+                "version_added": "126",
                 "flags": [
                   {
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@@ -2912,10 +3409,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "112",
+                "version_added": "121",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2923,7 +3420,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -2948,7 +3445,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2957,16 +3455,16 @@
           }
         }
       },
-      "neg": {
+      "logicalOr": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-neg",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2974,10 +3472,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "121",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2985,10 +3483,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "116",
+                "version_added": "131",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -2996,7 +3494,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -3021,7 +3519,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3030,16 +3529,16 @@
           }
         }
       },
-      "pad": {
+      "logicalXor": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-pad",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3047,10 +3546,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "120",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3058,10 +3557,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "114",
+                "version_added": "131",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3069,7 +3568,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -3094,7 +3593,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3103,16 +3603,16 @@
           }
         }
       },
-      "pow": {
+      "lstm": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-pow",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-lstm",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "129",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3120,10 +3620,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "119",
+                "version_added": "125",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3131,7 +3631,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -3156,7 +3656,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3165,16 +3666,16 @@
           }
         }
       },
-      "prelu": {
+      "lstmCell": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-prelu",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-lstmcell",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "120",
+                "version_added": "129",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3182,10 +3683,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "115",
+                "version_added": "125",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3193,7 +3694,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -3218,7 +3719,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3227,24 +3729,48 @@
           }
         }
       },
-      "reciprocal": {
+      "matmul": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reciprocal",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-matmul",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3267,7 +3793,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3276,24 +3803,48 @@
           }
         }
       },
-      "reduceL1": {
+      "max": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducel1",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-max",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "124",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "119",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3316,7 +3867,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3325,33 +3877,1008 @@
           }
         }
       },
-      "reduceL2": {
+      "maxPool2d": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducel2",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-pool2d-max",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
-            "chrome_android": {
-              "version_added": false
-            },
-            "deno": {
-              "version_added": false
-            },
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "119",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "min": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-min",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "124",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "119",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "mul": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-mul",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "124",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
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+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "119",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "neg": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-neg",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "127",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
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+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
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+                    "name": "#web-machine-learning-neural-network",
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+                    "value_to_set": "Enabled"
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+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "116",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "pad": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-pad",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "129",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
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+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "120",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
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+            "web-features:webnn"
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+            "standard_track": true,
+            "deprecated": false
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+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-prelu",
+          "tags": [
+            "web-features:webnn"
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+            "chrome": [
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+                "version_added": "120",
+                "flags": [
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+                    "name": "#web-machine-learning-neural-network",
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+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
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+                    "name": "#web-machine-learning-neural-network",
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+              "version_added": false
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+            "standard_track": true,
+            "deprecated": false
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+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "133",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "132",
+                "flags": [
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+                    "name": "#web-machine-learning-neural-network",
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+                    "value_to_set": "Enabled"
+                  }
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+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "132",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
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+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
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+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
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+            },
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+            "webview_ios": "mirror"
+          },
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+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "reciprocal": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reciprocal",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "127",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
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+              "version_added": false
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+              "version_added": false
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+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
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+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "reduceL1": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducel1",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "128",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
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+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
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+                "version_added": "121",
+                "flags": [
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+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
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+              "version_added": false
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+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
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+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "reduceL2": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducel2",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "128",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
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+                    "name": "#web-machine-learning-neural-network",
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+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
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+                    "name": "#web-machine-learning-neural-network",
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+                    "value_to_set": "Enabled"
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+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
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+              "version_added": false
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+            "ie": {
+              "version_added": false
+            },
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+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "reduceLogSum": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducelogsum",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "127",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
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+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "reduceLogSumExp": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducelogsumexp",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "127",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "reduceMax": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducemax",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
             },
             "firefox_android": "mirror",
             "ie": {
@@ -3365,7 +4892,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3374,24 +4902,48 @@
           }
         }
       },
-      "reduceLogSum": {
+      "reduceMean": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducelogsum",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducemean",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "120",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3414,7 +4966,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3423,24 +4976,48 @@
           }
         }
       },
-      "reduceLogSumExp": {
+      "reduceMin": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducelogsumexp",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducemin",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3463,7 +5040,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3472,24 +5050,48 @@
           }
         }
       },
-      "reduceMax": {
+      "reduceProduct": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducemax",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reduceproduct",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3512,7 +5114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3521,24 +5124,122 @@
           }
         }
       },
-      "reduceMean": {
+      "reduceSum": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducemean",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducesum",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
+            "chrome_android": {
+              "version_added": false
+            },
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
             },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "reduceSumSquare": {
+        "__compat": {
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducesumsquare",
+          "tags": [
+            "web-features:webnn"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "127",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3561,7 +5262,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3570,24 +5272,48 @@
           }
         }
       },
-      "reduceMin": {
+      "relu": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducemin",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-relu-method",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "125",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "119",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3610,7 +5336,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3619,24 +5346,48 @@
           }
         }
       },
-      "reduceProduct": {
+      "resample2d": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reduceproduct",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-resample2d-method",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3659,7 +5410,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3668,24 +5420,48 @@
           }
         }
       },
-      "reduceSum": {
+      "reshape": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducesum",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-reshape-method",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "119",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3708,7 +5484,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3717,24 +5494,48 @@
           }
         }
       },
-      "reduceSumSquare": {
+      "scatterElements": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-reducesumsquare",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "133",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "132",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "132",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -3757,7 +5558,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3766,16 +5568,16 @@
           }
         }
       },
-      "relu": {
+      "scatterND": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-relu-method",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3783,10 +5585,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "119",
+                "version_added": "132",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3794,10 +5596,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "112",
+                "version_added": "131",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3805,7 +5607,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -3830,7 +5632,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3839,16 +5642,16 @@
           }
         }
       },
-      "resample2d": {
+      "sigmoid": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-resample2d-method",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-sigmoid-method",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "124",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3856,7 +5659,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "121",
@@ -3867,7 +5670,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
                 "version_added": "112",
@@ -3878,7 +5681,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -3903,7 +5706,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3912,27 +5716,16 @@
           }
         }
       },
-      "reshape": {
+      "sign": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-reshape-method",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
-                "flags": [
-                  {
-                    "name": "#web-machine-learning-neural-network",
-                    "type": "preference",
-                    "value_to_set": "Enabled"
-                  }
-                ],
-                "notes": "Supported on CPUs on ChromeOS."
-              },
-              {
-                "version_added": "121",
+                "version_added": "130",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3940,10 +5733,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "112",
+                "version_added": "130",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -3951,7 +5744,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -3976,7 +5769,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3985,16 +5779,16 @@
           }
         }
       },
-      "sigmoid": {
+      "sin": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-sigmoid-method",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-sin",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4002,10 +5796,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "121",
+                "version_added": "123",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4013,10 +5807,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "112",
+                "version_added": "121",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4024,7 +5818,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -4049,7 +5843,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4058,16 +5853,16 @@
           }
         }
       },
-      "sin": {
+      "slice": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-sin",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-slice",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4075,10 +5870,21 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "121",
+                "version_added": "120",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "116",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4086,7 +5892,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -4111,7 +5917,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4120,16 +5927,16 @@
           }
         }
       },
-      "slice": {
+      "softmax": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-slice",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-softmax-method",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "120",
+                "version_added": "127",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4137,10 +5944,21 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "116",
+                "version_added": "119",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "112",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4148,7 +5966,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -4173,7 +5991,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4182,16 +6001,16 @@
           }
         }
       },
-      "softmax": {
+      "softplus": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-softmax-method",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-softplus-method",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4199,10 +6018,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "119",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4210,10 +6029,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "112",
+                "version_added": "122",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4221,7 +6040,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -4246,7 +6065,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4255,24 +6075,48 @@
           }
         }
       },
-      "softplus": {
+      "softsign": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-softplus-method",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-softsign-method",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "127",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "125",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "123",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -4295,7 +6139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4304,24 +6149,48 @@
           }
         }
       },
-      "softsign": {
+      "split": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-softsign-method",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-split",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "123",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "130",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "120",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "116",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -4344,7 +6213,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4353,16 +6223,16 @@
           }
         }
       },
-      "split": {
+      "sqrt": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-split",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-sqrt",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "120",
+                "version_added": "127",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4370,10 +6240,21 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "116",
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4381,7 +6262,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -4406,7 +6287,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4415,16 +6297,16 @@
           }
         }
       },
-      "sqrt": {
+      "sub": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-sqrt",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-sub",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "124",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4432,10 +6314,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "122",
+                "version_added": "119",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4443,10 +6325,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
-                "version_added": "121",
+                "version_added": "112",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4454,7 +6336,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -4479,7 +6361,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4488,16 +6371,16 @@
           }
         }
       },
-      "sub": {
+      "tan": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-sub",
+          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-tan",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "122",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4505,10 +6388,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "119",
+                "version_added": "126",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4516,10 +6399,10 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
-                "version_added": "112",
+                "version_added": "121",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4527,7 +6410,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -4552,7 +6435,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4561,24 +6445,48 @@
           }
         }
       },
-      "tan": {
+      "tanh": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#dom-mlgraphbuilder-tan",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-tanh-method",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "121",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "121",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              },
+              {
+                "version_added": "116",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -4601,7 +6509,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4610,16 +6519,16 @@
           }
         }
       },
-      "tanh": {
+      "tile": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-tanh-method",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlgraphbuilder-cast",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": [
               {
-                "version_added": "121",
+                "version_added": "131",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4627,10 +6536,21 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               },
               {
-                "version_added": "116",
+                "version_added": "131",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "130",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4638,7 +6558,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               }
             ],
             "chrome_android": {
@@ -4663,7 +6583,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4681,7 +6602,7 @@
           "support": {
             "chrome": [
               {
-                "version_added": "123",
+                "version_added": "125",
                 "flags": [
                   {
                     "name": "#web-machine-learning-neural-network",
@@ -4689,7 +6610,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on ChromeOS."
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
               },
               {
                 "version_added": "120",
@@ -4700,7 +6621,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on GPUs on Windows."
+                "notes": "Supported on GPUs and NPUs on Windows."
               },
               {
                 "version_added": "113",
@@ -4711,7 +6632,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Supported on CPUs on Windows."
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
               }
             ],
             "chrome_android": {
@@ -4736,7 +6657,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4752,17 +6674,41 @@
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "124",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "132",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "128",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -4785,7 +6731,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4801,17 +6748,41 @@
             "web-features:webnn"
           ],
           "support": {
-            "chrome": {
-              "version_added": "122",
-              "flags": [
-                {
-                  "name": "#web-machine-learning-neural-network",
-                  "type": "preference",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Supported on GPUs on Windows."
-            },
+            "chrome": [
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs on Windows, ChromeOS and Linux."
+              },
+              {
+                "version_added": "126",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on CPUs, GPUs and NPUs on macOS."
+              },
+              {
+                "version_added": "122",
+                "flags": [
+                  {
+                    "name": "#web-machine-learning-neural-network",
+                    "type": "preference",
+                    "value_to_set": "Enabled"
+                  }
+                ],
+                "notes": "Supported on GPUs and NPUs on Windows."
+              }
+            ],
             "chrome_android": {
               "version_added": false
             },
@@ -4834,7 +6805,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/MLOperand.json b/api/MLOperand.json
index 097ade6f68ab79..0bfd925d52f73b 100644
--- a/api/MLOperand.json
+++ b/api/MLOperand.json
@@ -15,8 +15,7 @@
                 "name": "#web-machine-learning-neural-network",
                 "value_to_set": "Enabled"
               }
-            ],
-            "notes": "Currently supported on ChromeOS and Windows only."
+            ]
           },
           "chrome_android": {
             "version_added": false
@@ -40,7 +39,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -48,23 +48,22 @@
           "deprecated": false
         }
       },
-      "dataType": {
+      "MLNumber": {
         "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mloperand-datatype",
+          "spec_url": "https://www.w3.org/TR/webnn/#api-mlnumber-typedef",
           "tags": [
             "web-features:webnn"
           ],
           "support": {
             "chrome": {
-              "version_added": "112",
+              "version_added": "132",
               "flags": [
                 {
                   "type": "preference",
                   "name": "#web-machine-learning-neural-network",
                   "value_to_set": "Enabled"
                 }
-              ],
-              "notes": "Currently supported on ChromeOS and Windows only."
+              ]
             },
             "chrome_android": {
               "version_added": false
@@ -88,56 +87,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "shape": {
-        "__compat": {
-          "spec_url": "https://www.w3.org/TR/webnn/#api-mloperand-shape",
-          "tags": [
-            "web-features:webnn"
-          ],
-          "support": {
-            "chrome": {
-              "version_added": "112",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "#web-machine-learning-neural-network",
-                  "value_to_set": "Enabled"
-                }
-              ],
-              "notes": "Currently supported on ChromeOS and Windows only."
-            },
-            "chrome_android": {
-              "version_added": false
-            },
-            "deno": {
-              "version_added": false
-            },
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Magnetometer.json b/api/Magnetometer.json
index c9938c04c6b380..56b63637471e07 100644
--- a/api/Magnetometer.json
+++ b/api/Magnetometer.json
@@ -32,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -42,7 +43,7 @@
       },
       "Magnetometer": {
         "__compat": {
-          "description": "<code>Magnetometer()</code> constructor",
+          "description": "`Magnetometer()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Magnetometer/Magnetometer",
           "spec_url": "https://w3c.github.io/magnetometer/#dom-magnetometer-magnetometer",
           "support": {
@@ -73,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -114,7 +116,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -155,7 +158,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -196,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ManagedMediaSource.json b/api/ManagedMediaSource.json
index 1bdb33a1cdb57e..4423e3ee924555 100644
--- a/api/ManagedMediaSource.json
+++ b/api/ManagedMediaSource.json
@@ -29,7 +29,8 @@
             "version_added": "17.1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,7 +40,7 @@
       },
       "ManagedMediaSource": {
         "__compat": {
-          "description": "<code>ManagedMediaSource()</code> constructor",
+          "description": "`ManagedMediaSource()` constructor",
           "spec_url": "https://w3c.github.io/media-source/#dom-managedmediasource-constructor",
           "tags": [
             "web-features:managed-media-source"
@@ -67,7 +68,8 @@
               "version_added": "17.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -78,7 +80,7 @@
       },
       "endstreaming_event": {
         "__compat": {
-          "description": "<code>endstreaming</code> event",
+          "description": "`endstreaming` event",
           "spec_url": "https://w3c.github.io/media-source/#dfn-endstreaming",
           "tags": [
             "web-features:managed-media-source"
@@ -106,7 +108,8 @@
               "version_added": "17.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -117,7 +120,7 @@
       },
       "startstreaming_event": {
         "__compat": {
-          "description": "<code>startstreaming</code> event",
+          "description": "`startstreaming` event",
           "spec_url": "https://w3c.github.io/media-source/#dfn-startstreaming",
           "tags": [
             "web-features:managed-media-source"
@@ -145,7 +148,8 @@
               "version_added": "17.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -183,7 +187,8 @@
               "version_added": "17.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ManagedSourceBuffer.json b/api/ManagedSourceBuffer.json
index 5c00de37bf84a7..74033f7959fb14 100644
--- a/api/ManagedSourceBuffer.json
+++ b/api/ManagedSourceBuffer.json
@@ -29,7 +29,8 @@
             "version_added": "17.1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,7 +40,7 @@
       },
       "bufferedchange_event": {
         "__compat": {
-          "description": "<code>bufferedchange</code> event",
+          "description": "`bufferedchange` event",
           "spec_url": "https://w3c.github.io/media-source/#dfn-bufferedchange",
           "tags": [
             "web-features:managed-media-source"
@@ -67,7 +68,8 @@
               "version_added": "17.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/MathMLElement.json b/api/MathMLElement.json
index 2df135018f66f3..c85c60f6738ece 100644
--- a/api/MathMLElement.json
+++ b/api/MathMLElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/MathMLElement",
         "spec_url": "https://w3c.github.io/mathml-core/#dom-mathmlelement",
+        "tags": [
+          "web-features:mathml"
+        ],
         "support": {
           "chrome": {
             "version_added": "109"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MathMLElement/attributeStyleMap",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-elementcssinlinestyle-attributestylemap",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -95,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,6 +116,9 @@
       "blur": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-blur-dev",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -128,7 +140,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,6 +153,9 @@
       "dataset": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-dataset-dev",
+          "tags": [
+            "web-features:dataset"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -161,7 +177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,6 +190,9 @@
       "focus": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-focus-dev",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -194,7 +214,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,6 +227,9 @@
       "nonce": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/urls-and-fetching.html#dom-noncedelement-nonce",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -227,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -240,6 +265,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MathMLElement/style",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-elementcssinlinestyle-style",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -261,7 +289,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -273,6 +302,9 @@
       "tabIndex": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-tabindex",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -294,7 +326,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaCapabilities.json b/api/MediaCapabilities.json
index ea7d3f2079bcae..ad9cee6d904973 100644
--- a/api/MediaCapabilities.json
+++ b/api/MediaCapabilities.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,8 +44,8 @@
             "chrome": {
               "version_added": "66",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
             },
             "chrome_android": "mirror",
@@ -52,8 +53,8 @@
             "firefox": {
               "version_added": "63",
               "notes": [
-                "The <code>webrtc</code> value of the <code>type</code> option is named <code>transmission</code>.",
-                "Before Firefox 101, <code>decodingInfo()</code> ignored <code>codecs</code> parameter options for <code>av01</code> codecs (treating them as <code>av1</code>)."
+                "The `webrtc` value of the `type` option is named `transmission`.",
+                "Before Firefox 101, `decodingInfo()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`)."
               ]
             },
             "firefox_android": "mirror",
@@ -65,8 +66,8 @@
             "opera_android": {
               "version_added": "48",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
             },
             "safari": {
@@ -74,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,7 +86,7 @@
         },
         "configuration_keySystemConfiguration_parameter": {
           "__compat": {
-            "description": "<code>configuration.keySystemConfiguration</code> parameter",
+            "description": "`configuration.keySystemConfiguration` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaCapabilities/decodingInfo#keysystemconfiguration",
             "spec_url": "https://w3c.github.io/media-capabilities/#dom-mediadecodingconfiguration-keysystemconfiguration",
             "support": {
@@ -108,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -130,7 +133,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "63",
-              "notes": "The <code>webrtc</code> value of the <code>type</code> option is named <code>transmission</code>."
+              "notes": "The `webrtc` value of the `type` option is named `transmission`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -144,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaController.json b/api/MediaController.json
index 1d9abb790d9395..815da0b0d0373a 100644
--- a/api/MediaController.json
+++ b/api/MediaController.json
@@ -23,7 +23,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -33,7 +34,7 @@
       },
       "MediaController": {
         "__compat": {
-          "description": "<code>MediaController()</code> constructor",
+          "description": "`MediaController()` constructor",
           "support": {
             "chrome": {
               "version_added": false
@@ -55,7 +56,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,11 +85,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -115,11 +118,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,11 +151,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -179,11 +184,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -211,11 +217,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -247,7 +254,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -275,11 +283,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -311,7 +320,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,11 +349,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -371,11 +382,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -403,11 +415,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -435,11 +448,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -467,11 +481,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -499,11 +514,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤8"
+              "version_added": "7"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaDeviceInfo.json b/api/MediaDeviceInfo.json
index 6c816f7c76eef8..8ab57296ad78f9 100644
--- a/api/MediaDeviceInfo.json
+++ b/api/MediaDeviceInfo.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -94,7 +96,7 @@
             },
             "firefox": {
               "version_added": "39",
-              "notes": "Before Firefox 67, related devices are not actually grouped together by <code>groupId</code>."
+              "notes": "Before Firefox 67, related devices are not actually grouped together by `groupId`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -186,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -197,7 +202,7 @@
       },
       "toJSON": {
         "__compat": {
-          "description": "<code>toJSON()</code>",
+          "description": "`toJSON()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaDeviceInfo/toJSON",
           "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediadeviceinfo-tojson",
           "support": {
@@ -223,7 +228,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaDevices.json b/api/MediaDevices.json
index 6e92fa5774980b..a296d6b257fe80 100644
--- a/api/MediaDevices.json
+++ b/api/MediaDevices.json
@@ -36,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,7 +47,7 @@
       },
       "devicechange_event": {
         "__compat": {
-          "description": "<code>devicechange</code> event",
+          "description": "`devicechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaDevices/devicechange_event",
           "spec_url": [
             "https://w3c.github.io/mediacapture-main/#event-mediadevices-devicechange",
@@ -79,7 +80,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,12 +108,12 @@
             "firefox": [
               {
                 "version_added": "116",
-                "notes": "<code>enumerateDevices()</code> enumerates both input and output devices. Previously only input devices were returned."
+                "notes": "`enumerateDevices()` enumerates both input and output devices. Previously only input devices were returned."
               },
               {
                 "version_added": "39",
                 "partial_implementation": true,
-                "notes": "<code>enumerateDevices()</code> only returns input devices."
+                "notes": "`enumerateDevices()` only returns input devices."
               }
             ],
             "firefox_android": "mirror",
@@ -126,7 +128,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,16 +140,19 @@
       },
       "getDisplayMedia": {
         "__compat": {
-          "description": "<code>getDisplayMedia()</code>",
+          "description": "`getDisplayMedia()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaDevices/getDisplayMedia",
           "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-mediadevices-getdisplaymedia",
+          "tags": [
+            "web-features:screen-capture"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "From Chrome Android 72 to 88, this method was exposed, but always failed with <code>NotAllowedError</code>. See <a href='https://crbug.com/487935'>bug 487935</a>."
+              "notes": "From Chrome Android 72 to 88, this method was exposed, but always failed with `NotAllowedError`. See [bug 40418135](https://crbug.com/40418135)."
             },
             "edge": [
               {
@@ -156,7 +162,7 @@
                 "version_added": "17",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Available as a member of <code>Navigator</code> instead of <code>MediaDevices</code>."
+                "notes": "Available as a member of `Navigator` instead of `MediaDevices`."
               }
             ],
             "firefox": [
@@ -166,12 +172,12 @@
               {
                 "version_added": "33",
                 "version_removed": "66",
-                "notes": "Since Firefox 33 you can capture screen data using <code><a href='https://developer.mozilla.org/docs/Web/API/MediaDevices/getUserMedia'>getUserMedia()</a></code>, with a <code>video</code> constraint called <code>mediaSource</code>. Before 52 it relied on a client-configurable list of allowed sites."
+                "notes": "Since Firefox 33 you can capture screen data using [`getUserMedia()`](https://developer.mozilla.org/docs/Web/API/MediaDevices/getUserMedia), with a `video` constraint called `mediaSource`. Before 52 it relied on a client-configurable list of allowed sites."
               }
             ],
             "firefox_android": {
               "version_added": false,
-              "notes": "From Firefox Android 66 to 79, this method was exposed, but always failed with <code>NotAllowedError</code>."
+              "notes": "From Firefox Android 66 to 79, this method was exposed, but always failed with `NotAllowedError`."
             },
             "ie": {
               "version_added": false
@@ -186,7 +192,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +205,9 @@
           "__compat": {
             "description": "Audio capture support",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/Screen_Capture_API/Using_Screen_Capture#Capturing_shared_audio",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": {
                 "version_added": "74",
@@ -222,7 +232,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -233,8 +244,11 @@
         },
         "controller_option": {
           "__compat": {
-            "description": "<code>controller</code> option",
+            "description": "`controller` option",
             "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-displaymediastreamoptions-controller",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -258,7 +272,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -269,12 +284,15 @@
         },
         "monitorTypeSurfaces_option": {
           "__compat": {
-            "description": "<code>monitorTypeSurfaces</code> option",
+            "description": "`monitorTypeSurfaces` option",
             "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-displaymediastreamoptions-monitortypesurfaces",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": {
                 "version_added": "119",
-                "notes": "Default value = <code>include</code>"
+                "notes": "Default value = `include`"
               },
               "chrome_android": {
                 "version_added": false
@@ -295,7 +313,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -306,11 +325,11 @@
         },
         "preferCurrentTab_option": {
           "__compat": {
-            "description": "<code>preferCurrentTab</code> option",
+            "description": "`preferCurrentTab` option",
             "support": {
               "chrome": {
                 "version_added": "94",
-                "notes": "Default value = <code>false</code>"
+                "notes": "Default value = `false`"
               },
               "chrome_android": {
                 "version_added": false
@@ -331,7 +350,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -342,18 +362,21 @@
         },
         "selfBrowserSurface_option": {
           "__compat": {
-            "description": "<code>selfBrowserSurface</code> option",
+            "description": "`selfBrowserSurface` option",
             "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-displaymediastreamoptions-selfbrowsersurface",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": [
                 {
                   "version_added": "112",
-                  "notes": "Default value = <code>exclude</code>"
+                  "notes": "Default value = `exclude`"
                 },
                 {
                   "version_added": "107",
                   "version_removed": "111",
-                  "notes": "Default value = <code>include</code>"
+                  "notes": "Default value = `include`"
                 }
               ],
               "chrome_android": {
@@ -375,7 +398,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -386,12 +410,15 @@
         },
         "surfaceSwitching_option": {
           "__compat": {
-            "description": "<code>surfaceSwitching</code> option",
+            "description": "`surfaceSwitching` option",
             "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-displaymediastreamoptions-surfaceswitching",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": {
                 "version_added": "107",
-                "notes": "Default value = <code>exclude</code>"
+                "notes": "Default value = `exclude`"
               },
               "chrome_android": {
                 "version_added": false
@@ -412,7 +439,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -423,12 +451,15 @@
         },
         "systemAudio_option": {
           "__compat": {
-            "description": "<code>systemAudio</code> option",
+            "description": "`systemAudio` option",
             "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-displaymediastreamoptions-systemaudio",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105",
-                "notes": "Default value = <code>include</code>"
+                "notes": "Default value = `include`"
               },
               "chrome_android": {
                 "version_added": false
@@ -449,7 +480,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -492,7 +524,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "53"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -511,7 +544,7 @@
           "support": {
             "chrome": {
               "version_added": "53",
-              "notes": "If you need this capability before version 53, refer to <code>navigator.webkitGetUserMedia</code>, a prefixed form of the deprecated <a href='https://developer.mozilla.org/docs/Web/API/Navigator/getUserMedia'><code>navigator.getUserMedia</code></a> API."
+              "notes": "If you need this capability before version 53, refer to `navigator.webkitGetUserMedia`, a prefixed form of the deprecated [`navigator.getUserMedia`](https://developer.mozilla.org/docs/Web/API/Navigator/getUserMedia) API."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -520,10 +553,10 @@
             "firefox": {
               "version_added": "36",
               "notes": [
-                "If you need this capability before version 36, refer to <code>navigator.mozGetUserMedia</code>, a prefixed form of the deprecated <a href='https://developer.mozilla.org/docs/Web/API/Navigator/getUserMedia'><code>navigator.getUserMedia</code></a> API.",
-                "Before Firefox 55, <code>getUserMedia()</code> incorrectly returns <code>NotSupportedError</code> when the list of constraints specified is empty, or has all constraints set to <code>false</code>. Starting in Firefox 55, this situation now correctly calls the failure handler with a <code>TypeError</code>.",
-                "When using the Firefox-specific <code>video</code> constraint called <code>mediaSource</code> to request display capture, Firefox 66 and later consider values of <code>screen</code> and <code>window</code> to both cause a list of screens <em>and</em> windows to be shown.",
-                "Starting in Firefox 66, <code>getUserMedia()</code> can no longer be used in sandboxed <code>&lt;iframe&gt;</code>s or <code>data</code> URLs entered in the address bar by the user."
+                "If you need this capability before version 36, refer to `navigator.mozGetUserMedia`, a prefixed form of the deprecated [`navigator.getUserMedia`](https://developer.mozilla.org/docs/Web/API/Navigator/getUserMedia) API.",
+                "Before Firefox 55, `getUserMedia()` incorrectly returns `NotSupportedError` when the list of constraints specified is empty, or has all constraints set to `false`. Starting in Firefox 55, this situation now correctly calls the failure handler with a `TypeError`.",
+                "When using the Firefox-specific `video` constraint called `mediaSource` to request display capture, Firefox 66 and later consider values of `screen` and `window` to both cause a list of screens _and_ windows to be shown.",
+                "Starting in Firefox 66, `getUserMedia()` can no longer be used in sandboxed `&lt;iframe&gt;`s or `data` URLs entered in the address bar by the user."
               ]
             },
             "firefox_android": "mirror",
@@ -542,7 +575,8 @@
             },
             "webview_android": {
               "version_added": "53"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -574,7 +608,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -590,7 +625,8 @@
           "spec_url": "https://w3c.github.io/mediacapture-output/#dom-mediadevices-selectaudiooutput",
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://crbug.com/372214870"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -607,11 +643,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/216641"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -646,7 +684,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/MediaElementAudioSourceNode.json b/api/MediaElementAudioSourceNode.json
index fbbfcdc5b79683..2ab27224eb8d8c 100644
--- a/api/MediaElementAudioSourceNode.json
+++ b/api/MediaElementAudioSourceNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "MediaElementAudioSourceNode": {
         "__compat": {
-          "description": "<code>MediaElementAudioSourceNode()</code> constructor",
+          "description": "`MediaElementAudioSourceNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaElementAudioSourceNode/MediaElementAudioSourceNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-mediaelementaudiosourcenode-mediaelementaudiosourcenode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaEncryptedEvent.json b/api/MediaEncryptedEvent.json
index 554b43da062f2e..8b07d137c6f44a 100644
--- a/api/MediaEncryptedEvent.json
+++ b/api/MediaEncryptedEvent.json
@@ -29,7 +29,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "43"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,7 +40,7 @@
       },
       "MediaEncryptedEvent": {
         "__compat": {
-          "description": "<code>MediaEncryptedEvent()</code> constructor",
+          "description": "`MediaEncryptedEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaEncryptedEvent/MediaEncryptedEvent",
           "spec_url": "https://w3c.github.io/encrypted-media/#dom-mediaencryptedevent",
           "support": {
@@ -67,7 +68,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,7 +107,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,7 +146,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaError.json b/api/MediaError.json
index f134fc63d13b4f..7760cb74be7794 100644
--- a/api/MediaError.json
+++ b/api/MediaError.json
@@ -40,7 +40,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -81,7 +82,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -115,7 +117,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaKeyMessageEvent.json b/api/MediaKeyMessageEvent.json
index d5f0a1dee319b0..b846c8a4d14f9a 100644
--- a/api/MediaKeyMessageEvent.json
+++ b/api/MediaKeyMessageEvent.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,7 +38,7 @@
       },
       "MediaKeyMessageEvent": {
         "__compat": {
-          "description": "<code>MediaKeyMessageEvent()</code> constructor",
+          "description": "`MediaKeyMessageEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaKeyMessageEvent/MediaKeyMessageEvent",
           "spec_url": "https://w3c.github.io/encrypted-media/#dom-mediakeymessageevent-constructor",
           "support": {
@@ -63,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,7 +138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaKeySession.json b/api/MediaKeySession.json
index 2b94a832070030..6878435d253532 100644
--- a/api/MediaKeySession.json
+++ b/api/MediaKeySession.json
@@ -29,7 +29,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "43"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,7 +67,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +106,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,7 +145,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,7 +184,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -218,7 +223,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -229,7 +235,7 @@
       },
       "keystatuseschange_event": {
         "__compat": {
-          "description": "<code>keystatuseschange</code> event",
+          "description": "`keystatuseschange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaKeySession/keystatuseschange_event",
           "spec_url": "https://w3c.github.io/encrypted-media/#dom-mediakeysession-onkeystatuseschange",
           "support": {
@@ -241,7 +247,7 @@
                 "version_added": "42",
                 "version_removed": "55",
                 "partial_implementation": true,
-                "notes": "The <code>onkeystatuseschange</code> event handler property is not supported."
+                "notes": "The `onkeystatuseschange` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -269,9 +275,10 @@
                 "version_added": "43",
                 "version_removed": "55",
                 "partial_implementation": true,
-                "notes": "The <code>onkeystatuseschange</code> event handler property is not supported."
+                "notes": "The `onkeystatuseschange` event handler property is not supported."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -309,7 +316,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -320,7 +328,7 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaKeySession/message_event",
           "spec_url": "https://w3c.github.io/encrypted-media/#dom-mediakeysession-onmessage",
           "support": {
@@ -332,7 +340,7 @@
                 "version_added": "42",
                 "version_removed": "55",
                 "partial_implementation": true,
-                "notes": "The <code>onmessage</code> event handler property is not supported."
+                "notes": "The `onmessage` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -360,9 +368,10 @@
                 "version_added": "43",
                 "version_removed": "55",
                 "partial_implementation": true,
-                "notes": "The <code>onmessage</code> event handler property is not supported."
+                "notes": "The `onmessage` event handler property is not supported."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -400,7 +409,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -438,7 +448,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -476,7 +487,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaKeyStatusMap.json b/api/MediaKeyStatusMap.json
index 11a72b653c6cbe..c9e3cb80a1b5ee 100644
--- a/api/MediaKeyStatusMap.json
+++ b/api/MediaKeyStatusMap.json
@@ -29,7 +29,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "43"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -65,7 +66,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,7 +143,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,7 +182,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,7 +220,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -253,7 +259,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -290,7 +297,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -327,7 +335,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaKeySystemAccess.json b/api/MediaKeySystemAccess.json
index afc6048f98a064..0f7388458e6c34 100644
--- a/api/MediaKeySystemAccess.json
+++ b/api/MediaKeySystemAccess.json
@@ -29,7 +29,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "43"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,7 +67,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,7 +91,7 @@
             },
             "firefox": {
               "version_added": "43",
-              "notes": "Before Firefox 50, the returned object has neither a <code>distinctiveIdentifier</code> nor a <code>persistentState</code> property."
+              "notes": "Before Firefox 50, the returned object has neither a `distinctiveIdentifier` nor a `persistentState` property."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -105,7 +107,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,7 +146,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaKeys.json b/api/MediaKeys.json
index 8fb272b9a2458f..71519d4a5a5e31 100644
--- a/api/MediaKeys.json
+++ b/api/MediaKeys.json
@@ -29,7 +29,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "43"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,7 +67,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,7 +102,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaList.json b/api/MediaList.json
index 44b774de951646..541f186628faad 100644
--- a/api/MediaList.json
+++ b/api/MediaList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaList",
         "spec_url": "https://drafts.csswg.org/cssom/#the-medialist-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaList/appendMedium",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-medialist-appendmedium",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaList/deleteMedium",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-medialist-deletemedium",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaList/item",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-medialist-item",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -150,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +179,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaList/length",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-medialist-length",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -190,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -203,6 +223,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaList/mediaText",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-medialist-mediatext",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -230,7 +253,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -242,6 +266,9 @@
       "toString": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/cssom/#MediaList-stringification-behavior",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -265,11 +292,12 @@
               "version_added": "≤12.1"
             },
             "safari": {
-              "version_added": "≤4"
+              "version_added": "1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaMetadata.json b/api/MediaMetadata.json
index f36013b6e767f2..5c3d6175a6340a 100644
--- a/api/MediaMetadata.json
+++ b/api/MediaMetadata.json
@@ -33,8 +33,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40611412"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,7 +46,7 @@
       },
       "MediaMetadata": {
         "__compat": {
-          "description": "<code>MediaMetadata()</code> constructor",
+          "description": "`MediaMetadata()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaMetadata/MediaMetadata",
           "spec_url": "https://w3c.github.io/mediasession/#dom-mediametadata-mediametadata",
           "tags": [
@@ -73,7 +75,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -112,7 +115,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,7 +155,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,7 +195,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -226,7 +232,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -265,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaQueryList.json b/api/MediaQueryList.json
index 58a16fe7c97650..6d5160af4b600b 100644
--- a/api/MediaQueryList.json
+++ b/api/MediaQueryList.json
@@ -33,7 +33,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,7 +44,7 @@
       },
       "EventTarget_inheritance": {
         "__compat": {
-          "description": "<code>MediaQueryList</code> inherits <code>EventTarget</code>",
+          "description": "`MediaQueryList` inherits `EventTarget`",
           "support": {
             "chrome": {
               "version_added": "39"
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,7 +80,7 @@
       },
       "addListener": {
         "__compat": {
-          "description": "<code>addListener()</code>",
+          "description": "`addListener()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaQueryList/addListener",
           "spec_url": "https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-addlistener",
           "support": {
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -121,7 +124,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaQueryList/change_event",
           "spec_url": "https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-onchange",
           "support": {
@@ -145,7 +148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -187,7 +191,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -229,7 +234,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -240,7 +246,7 @@
       },
       "removeListener": {
         "__compat": {
-          "description": "<code>removeListener()</code>",
+          "description": "`removeListener()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaQueryList/removeListener",
           "spec_url": "https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-removelistener",
           "support": {
@@ -272,7 +278,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaQueryListEvent.json b/api/MediaQueryListEvent.json
index cfb658927d0881..58acfa735d227f 100644
--- a/api/MediaQueryListEvent.json
+++ b/api/MediaQueryListEvent.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "MediaQueryListEvent": {
         "__compat": {
-          "description": "<code>MediaQueryListEvent()</code> constructor",
+          "description": "`MediaQueryListEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaQueryListEvent/MediaQueryListEvent",
           "spec_url": "https://drafts.csswg.org/cssom-view/#dom-mediaquerylistevent-mediaquerylistevent",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaRecorder.json b/api/MediaRecorder.json
index cf0206f497574d..e67ccf2ef0c9f9 100644
--- a/api/MediaRecorder.json
+++ b/api/MediaRecorder.json
@@ -12,7 +12,7 @@
           "edge": "mirror",
           "firefox": {
             "version_added": "25",
-            "notes": "Before Firefox 58, using <code>MediaStream.addTrack()</code> on a stream obtained using <code>getUserMedia()</code>, then attempting to record the resulting stream would result in only recording the original stream without the added tracks (severe bug)."
+            "notes": "Before Firefox 58, using `MediaStream.addTrack()` on a stream obtained using `getUserMedia()`, then attempting to record the resulting stream would result in only recording the original stream without the added tracks (severe bug)."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -32,7 +32,8 @@
             "version_added": "14"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "MediaRecorder": {
         "__compat": {
-          "description": "<code>MediaRecorder()</code> constructor",
+          "description": "`MediaRecorder()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaRecorder/MediaRecorder",
           "spec_url": "https://w3c.github.io/mediacapture-record/#dom-mediarecorder-mediarecorder",
           "support": {
@@ -72,7 +73,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -82,7 +84,7 @@
         },
         "options_parameter": {
           "__compat": {
-            "description": "<code>options</code> parameter",
+            "description": "`options` parameter",
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -106,7 +108,8 @@
                 "version_added": "14"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -141,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -186,7 +191,7 @@
       },
       "dataavailable_event": {
         "__compat": {
-          "description": "<code>dataavailable</code> event",
+          "description": "`dataavailable` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaRecorder/dataavailable_event",
           "spec_url": "https://w3c.github.io/mediacapture-record/#dom-mediarecorder-ondataavailable",
           "support": {
@@ -212,7 +217,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,14 +229,14 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaRecorder/error_event",
           "spec_url": "https://w3c.github.io/mediacapture-record/#dom-mediarecorder-onerror",
           "support": {
             "chrome": {
               "version_added": "49",
               "partial_implementation": true,
-              "notes": "The interface for this event is a plain <a href='https://developer.mozilla.org/docs/Web/API/Event'><code>Event</code></a>, not <a href='https://developer.mozilla.org/docs/Web/API/ErrorEvent'><code>ErrorEvent</code></a>. See <a href='https://crbug.com/1250432'>bug 1250432</a>."
+              "notes": "The interface for this event is a plain [`Event`](https://developer.mozilla.org/docs/Web/API/Event), not [`ErrorEvent`](https://developer.mozilla.org/docs/Web/API/ErrorEvent). See [bug 40791876](https://crbug.com/40791876)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -251,7 +257,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,7 +269,7 @@
       },
       "isTypeSupported_static": {
         "__compat": {
-          "description": "<code>isTypeSupported()</code> static method",
+          "description": "`isTypeSupported()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaRecorder/isTypeSupported_static",
           "spec_url": "https://w3c.github.io/mediacapture-record/#dom-mediarecorder-istypesupported",
           "support": {
@@ -292,7 +299,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -321,7 +329,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "25",
-              "notes": "Starting with Firefox 71, the behavior of <code>mimeType</code> is more consistent. For example, it now returns the media type even after recording has stopped."
+              "notes": "Starting with Firefox 71, the behavior of `mimeType` is more consistent. For example, it now returns the media type even after recording has stopped."
             },
             "firefox_android": {
               "version_added": "25"
@@ -343,7 +351,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -377,7 +386,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -388,7 +398,7 @@
       },
       "pause_event": {
         "__compat": {
-          "description": "<code>pause</code> event",
+          "description": "`pause` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaRecorder/pause_event",
           "spec_url": "https://w3c.github.io/mediacapture-record/#dom-mediarecorder-onpause",
           "support": {
@@ -412,7 +422,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -448,7 +459,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -482,7 +494,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -493,7 +506,7 @@
       },
       "resume_event": {
         "__compat": {
-          "description": "<code>resume</code> event",
+          "description": "`resume` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaRecorder/resume_event",
           "spec_url": "https://w3c.github.io/mediacapture-record/#dom-mediarecorder-onresume",
           "support": {
@@ -517,7 +530,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -557,7 +571,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -568,7 +583,7 @@
       },
       "start_event": {
         "__compat": {
-          "description": "<code>start</code> event",
+          "description": "`start` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaRecorder/start_event",
           "spec_url": "https://w3c.github.io/mediacapture-record/#dom-mediarecorder-onstart",
           "support": {
@@ -594,7 +609,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -642,7 +658,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -678,7 +695,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -689,7 +707,7 @@
       },
       "stop_event": {
         "__compat": {
-          "description": "<code>stop</code> event",
+          "description": "`stop` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaRecorder/stop_event",
           "spec_url": "https://w3c.github.io/mediacapture-record/#dom-mediarecorder-onstop",
           "support": {
@@ -715,7 +733,8 @@
               "version_added": "14"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -765,7 +784,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "49"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -799,7 +819,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaRecorderErrorEvent.json b/api/MediaRecorderErrorEvent.json
index 33edd1830b7cc2..76cd6db1f87aac 100644
--- a/api/MediaRecorderErrorEvent.json
+++ b/api/MediaRecorderErrorEvent.json
@@ -6,7 +6,7 @@
         "support": {
           "chrome": {
             "version_added": false,
-            "impl_url": "https://crbug.com/1250432"
+            "impl_url": "https://crbug.com/40791876"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "MediaRecorderErrorEvent": {
         "__compat": {
-          "description": "<code>MediaRecorderErrorEvent()</code> constructor",
+          "description": "`MediaRecorderErrorEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaRecorderErrorEvent/MediaRecorderErrorEvent",
           "support": {
             "chrome": {
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,7 +93,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaSession.json b/api/MediaSession.json
index 66f3997d769bf7..b3737cb285e54f 100644
--- a/api/MediaSession.json
+++ b/api/MediaSession.json
@@ -35,8 +35,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40611412"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,7 +82,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,7 +128,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,7 +140,7 @@
       },
       "setActionHandler": {
         "__compat": {
-          "description": "<code>setActionHandler()</code>",
+          "description": "`setActionHandler()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaSession/setActionHandler",
           "spec_url": "https://w3c.github.io/mediasession/#dom-mediasession-setactionhandler",
           "tags": [
@@ -171,7 +175,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -181,7 +186,7 @@
         },
         "hangup_type": {
           "__compat": {
-            "description": "<code>\"hangup\"</code> type",
+            "description": "`\"hangup\"` type",
             "support": {
               "chrome": {
                 "version_added": "93"
@@ -205,7 +210,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -216,7 +222,7 @@
         },
         "nextslide_type": {
           "__compat": {
-            "description": "<code>\"nextslide\"</code> type",
+            "description": "`\"nextslide\"` type",
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -240,7 +246,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -251,7 +258,7 @@
         },
         "nexttrack_type": {
           "__compat": {
-            "description": "<code>\"nexttrack\"</code> type",
+            "description": "`\"nexttrack\"` type",
             "tags": [
               "web-features:media-session"
             ],
@@ -280,7 +287,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -291,7 +299,7 @@
         },
         "pause_type": {
           "__compat": {
-            "description": "<code>\"pause\"</code> type",
+            "description": "`\"pause\"` type",
             "tags": [
               "web-features:media-session"
             ],
@@ -320,7 +328,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -331,7 +340,7 @@
         },
         "play_type": {
           "__compat": {
-            "description": "<code>\"play\"</code> type",
+            "description": "`\"play\"` type",
             "tags": [
               "web-features:media-session"
             ],
@@ -360,7 +369,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -371,7 +381,7 @@
         },
         "previousslide_type": {
           "__compat": {
-            "description": "<code>\"previousslide\"</code> type",
+            "description": "`\"previousslide\"` type",
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -395,7 +405,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -406,7 +417,7 @@
         },
         "previoustrack_type": {
           "__compat": {
-            "description": "<code>\"previoustrack\"</code> type",
+            "description": "`\"previoustrack\"` type",
             "tags": [
               "web-features:media-session"
             ],
@@ -435,7 +446,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -446,7 +458,7 @@
         },
         "seekbackward_type": {
           "__compat": {
-            "description": "<code>\"seekbackward\"</code> type",
+            "description": "`\"seekbackward\"` type",
             "tags": [
               "web-features:media-session"
             ],
@@ -475,7 +487,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -486,7 +499,7 @@
         },
         "seekforward_type": {
           "__compat": {
-            "description": "<code>\"seekforward\"</code> type",
+            "description": "`\"seekforward\"` type",
             "tags": [
               "web-features:media-session"
             ],
@@ -515,7 +528,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -526,7 +540,7 @@
         },
         "seekto_type": {
           "__compat": {
-            "description": "<code>\"seekto\"</code> type",
+            "description": "`\"seekto\"` type",
             "support": {
               "chrome": {
                 "version_added": "78"
@@ -550,7 +564,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -561,7 +576,7 @@
         },
         "skipad_type": {
           "__compat": {
-            "description": "<code>\"skipad\"</code> type",
+            "description": "`\"skipad\"` type",
             "support": {
               "chrome": {
                 "version_added": "128"
@@ -585,7 +600,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -596,7 +612,7 @@
         },
         "stop_type": {
           "__compat": {
-            "description": "<code>\"stop\"</code> type",
+            "description": "`\"stop\"` type",
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -620,7 +636,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -631,7 +648,7 @@
         },
         "togglecamera_type": {
           "__compat": {
-            "description": "<code>\"togglecamera\"</code> type",
+            "description": "`\"togglecamera\"` type",
             "support": {
               "chrome": {
                 "version_added": "93"
@@ -655,7 +672,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -666,7 +684,7 @@
         },
         "togglemicrophone_type": {
           "__compat": {
-            "description": "<code>\"togglemicrophone\"</code> type",
+            "description": "`\"togglemicrophone\"` type",
             "support": {
               "chrome": {
                 "version_added": "93"
@@ -690,7 +708,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -702,7 +721,7 @@
       },
       "setCameraActive": {
         "__compat": {
-          "description": "<code>setCameraActive()</code>",
+          "description": "`setCameraActive()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaSession/setCameraActive",
           "spec_url": "https://w3c.github.io/mediasession/#dom-mediasession-setcameraactive",
           "support": {
@@ -728,7 +747,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -739,7 +759,7 @@
       },
       "setMicrophoneActive": {
         "__compat": {
-          "description": "<code>setMicrophoneActive()</code>",
+          "description": "`setMicrophoneActive()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaSession/setMicrophoneActive",
           "spec_url": "https://w3c.github.io/mediasession/#dom-mediasession-setmicrophoneactive",
           "support": {
@@ -765,7 +785,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -776,7 +797,7 @@
       },
       "setPositionState": {
         "__compat": {
-          "description": "<code>setPositionState()</code>",
+          "description": "`setPositionState()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaSession/setPositionState",
           "spec_url": "https://w3c.github.io/mediasession/#dom-mediasession-setpositionstate",
           "support": {
@@ -808,7 +829,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaSource.json b/api/MediaSource.json
index 1751a2aeed36c9..933e045c1204a2 100644
--- a/api/MediaSource.json
+++ b/api/MediaSource.json
@@ -39,11 +39,15 @@
           },
           "safari_ios": {
             "version_added": "13",
+            "impl_url": "https://webkit.org/b/200147",
             "partial_implementation": true,
             "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -53,7 +57,7 @@
       },
       "MediaSource": {
         "__compat": {
-          "description": "<code>MediaSource()</code> constructor",
+          "description": "`MediaSource()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaSource/MediaSource",
           "spec_url": "https://w3c.github.io/media-source/#dom-mediasource-constructor",
           "support": {
@@ -99,7 +103,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -132,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -177,6 +185,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -222,6 +233,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -233,7 +247,7 @@
       },
       "canConstructInDedicatedWorker_static": {
         "__compat": {
-          "description": "<code>canConstructInDedicatedWorker</code> static property",
+          "description": "`canConstructInDedicatedWorker` static property",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaSource/canConstructInDedicatedWorker_static",
           "spec_url": "https://w3c.github.io/media-source/#dom-mediasource-canconstructindedicatedworker",
           "support": {
@@ -257,7 +271,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -297,7 +314,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -342,6 +362,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -387,6 +410,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -421,7 +447,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -432,32 +461,32 @@
       },
       "isTypeSupported_static": {
         "__compat": {
-          "description": "<code>isTypeSupported()</code> static method",
+          "description": "`isTypeSupported()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaSource/isTypeSupported_static",
           "spec_url": "https://w3c.github.io/media-source/#dom-mediasource-istypesupported",
           "support": {
             "chrome": {
               "version_added": "23",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
             },
             "firefox": {
               "version_added": "42",
-              "notes": "Before Firefox 101, <code>isTypeSupported()</code> ignored <code>codecs</code> parameter options for <code>av01</code> codecs (treating them as <code>av1</code>)."
+              "notes": "Before Firefox 101, `isTypeSupported()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`)."
             },
             "firefox_android": {
               "version_added": "41",
-              "notes": "Before Firefox 101, <code>isTypeSupported()</code> ignored <code>codecs</code> parameter options for <code>av01</code> codecs (treating them as <code>av1</code>)."
+              "notes": "Before Firefox 101, `isTypeSupported()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`)."
             },
             "ie": {
               "version_added": "11",
@@ -478,9 +507,12 @@
             "webview_android": {
               "version_added": "4.4.3",
               "notes": [
-                "<code>codecs</code> string can contain any subset of optional parameters (should be all or none).",
-                "Errors if <code>codecs</code> string contains unexpected characters (should evaluate string up to character)."
+                "`codecs` string can contain any subset of optional parameters (should be all or none).",
+                "Errors if `codecs` string contains unexpected characters (should evaluate string up to character)."
               ]
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -528,7 +560,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -573,6 +608,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -613,7 +651,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -658,6 +699,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -669,7 +713,7 @@
       },
       "sourceclose_event": {
         "__compat": {
-          "description": "<code>sourceclose</code> event",
+          "description": "`sourceclose` event",
           "spec_url": "https://w3c.github.io/media-source/#dfn-sourceclose",
           "support": {
             "chrome": [
@@ -680,7 +724,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceclose</code> event handler property is not supported."
+                "notes": "The `onsourceclose` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -692,7 +736,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceclose</code> event handler property is not supported."
+                "notes": "The `onsourceclose` event handler property is not supported."
               }
             ],
             "firefox": [
@@ -703,7 +747,7 @@
                 "version_added": "42",
                 "version_removed": "87",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceclose</code> event handler property is not supported."
+                "notes": "The `onsourceclose` event handler property is not supported."
               }
             ],
             "firefox_android": [
@@ -714,7 +758,7 @@
                 "version_added": "41",
                 "version_removed": "87",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceclose</code> event handler property is not supported."
+                "notes": "The `onsourceclose` event handler property is not supported."
               }
             ],
             "ie": {
@@ -732,7 +776,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceclose</code> event handler property is not supported."
+                "notes": "The `onsourceclose` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -741,7 +785,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -752,7 +799,7 @@
       },
       "sourceended_event": {
         "__compat": {
-          "description": "<code>sourceended</code> event",
+          "description": "`sourceended` event",
           "spec_url": "https://w3c.github.io/media-source/#dfn-sourceended",
           "support": {
             "chrome": [
@@ -763,7 +810,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceended</code> event handler property is not supported."
+                "notes": "The `onsourceended` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -775,7 +822,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceended</code> event handler property is not supported."
+                "notes": "The `onsourceended` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -799,7 +846,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceended</code> event handler property is not supported."
+                "notes": "The `onsourceended` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -816,9 +863,12 @@
                 "version_added": "4.4.3",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceclose</code> event handler property is not supported."
+                "notes": "The `onsourceclose` event handler property is not supported."
               }
-            ]
+            ],
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -829,7 +879,7 @@
       },
       "sourceopen_event": {
         "__compat": {
-          "description": "<code>sourceopen</code> event",
+          "description": "`sourceopen` event",
           "spec_url": "https://w3c.github.io/media-source/#dfn-sourceopen",
           "support": {
             "chrome": [
@@ -840,7 +890,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceopen</code> event handler property is not supported."
+                "notes": "The `onsourceopen` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -852,7 +902,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceopen</code> event handler property is not supported."
+                "notes": "The `onsourceopen` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -876,7 +926,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onsourceopen</code> event handler property is not supported."
+                "notes": "The `onsourceopen` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -885,7 +935,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaSourceHandle.json b/api/MediaSourceHandle.json
index 813ed0dea4a477..5b6d327959a6aa 100644
--- a/api/MediaSourceHandle.json
+++ b/api/MediaSourceHandle.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/MediaStream.json b/api/MediaStream.json
index 1fe6b29fab7df6..59236da6fc2ac6 100644
--- a/api/MediaStream.json
+++ b/api/MediaStream.json
@@ -39,7 +39,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,7 +50,7 @@
       },
       "MediaStream": {
         "__compat": {
-          "description": "<code>MediaStream()</code> constructor",
+          "description": "`MediaStream()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStream/MediaStream",
           "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediastream-constructor",
           "support": {
@@ -89,7 +90,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,7 +139,7 @@
       },
       "active_event": {
         "__compat": {
-          "description": "<code>active</code> event",
+          "description": "`active` event",
           "support": {
             "chrome": {
               "version_added": "42"
@@ -160,7 +163,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,7 +202,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -209,7 +214,7 @@
       },
       "addtrack_event": {
         "__compat": {
-          "description": "<code>addtrack</code> event",
+          "description": "`addtrack` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStream/addtrack_event",
           "spec_url": "https://w3c.github.io/mediacapture-main/#event-mediastream-addtrack",
           "support": {
@@ -235,7 +240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -271,7 +277,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -297,7 +304,7 @@
             },
             "firefox": {
               "version_added": "22",
-              "notes": "Before Firefox 64, this method returned an array of <code>AudioStreamTrack</code> objects. However, <code>MediaStreamTrack</code> has now subsumed that interface's functionality."
+              "notes": "Before Firefox 64, this method returned an array of `AudioStreamTrack` objects. However, `MediaStreamTrack` has now subsumed that interface's functionality."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -313,7 +320,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -351,7 +359,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -390,7 +399,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -416,7 +426,7 @@
             },
             "firefox": {
               "version_added": "22",
-              "notes": "Before Firefox 64, this method returned an array of <code>VideoStreamTrack</code> objects. However, <code>MediaStreamTrack</code> has now subsumed that interface's functionality."
+              "notes": "Before Firefox 64, this method returned an array of `VideoStreamTrack` objects. However, `MediaStreamTrack` has now subsumed that interface's functionality."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -432,7 +442,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -468,7 +479,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -479,7 +491,7 @@
       },
       "inactive_event": {
         "__compat": {
-          "description": "<code>inactive</code> event",
+          "description": "`inactive` event",
           "support": {
             "chrome": {
               "version_added": "42"
@@ -503,7 +515,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -541,7 +554,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -552,7 +566,7 @@
       },
       "removetrack_event": {
         "__compat": {
-          "description": "<code>removetrack</code> event",
+          "description": "`removetrack` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStream/removetrack_event",
           "spec_url": "https://w3c.github.io/mediacapture-main/#event-mediastream-removetrack",
           "support": {
@@ -586,7 +600,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaStreamAudioDestinationNode.json b/api/MediaStreamAudioDestinationNode.json
index 4c2e3a3aaa8f6e..28e308c6400f0a 100644
--- a/api/MediaStreamAudioDestinationNode.json
+++ b/api/MediaStreamAudioDestinationNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "MediaStreamAudioDestinationNode": {
         "__compat": {
-          "description": "<code>MediaStreamAudioDestinationNode()</code> constructor",
+          "description": "`MediaStreamAudioDestinationNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamAudioDestinationNode/MediaStreamAudioDestinationNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-mediastreamaudiodestinationnode-mediastreamaudiodestinationnode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaStreamAudioSourceNode.json b/api/MediaStreamAudioSourceNode.json
index f7742ad8541201..4e2f3a9917e0a4 100644
--- a/api/MediaStreamAudioSourceNode.json
+++ b/api/MediaStreamAudioSourceNode.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,7 @@
       },
       "MediaStreamAudioSourceNode": {
         "__compat": {
-          "description": "<code>MediaStreamAudioSourceNode()</code> constructor",
+          "description": "`MediaStreamAudioSourceNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamAudioSourceNode/MediaStreamAudioSourceNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-mediastreamaudiosourcenode-mediastreamaudiosourcenode",
           "tags": [
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaStreamEvent.json b/api/MediaStreamEvent.json
index a90b5274ac2ec7..0a6e8edd666edd 100644
--- a/api/MediaStreamEvent.json
+++ b/api/MediaStreamEvent.json
@@ -6,7 +6,7 @@
         "support": {
           "chrome": {
             "version_added": "26",
-            "impl_url": "https://crbug.com/697059"
+            "impl_url": "https://crbug.com/40508568"
           },
           "chrome_android": "mirror",
           "edge": {
@@ -36,7 +36,8 @@
           },
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,7 +47,7 @@
       },
       "MediaStreamEvent": {
         "__compat": {
-          "description": "<code>MediaStreamEvent()</code> constructor",
+          "description": "`MediaStreamEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamEvent/MediaStreamEvent",
           "support": {
             "chrome": {
@@ -72,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaStreamTrack.json b/api/MediaStreamTrack.json
index 9d06061afe44d1..e4529416efdb48 100644
--- a/api/MediaStreamTrack.json
+++ b/api/MediaStreamTrack.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,7 +77,7 @@
         },
         "aspectRatio_constraint": {
           "__compat": {
-            "description": "<code>aspectRatio</code> constraint",
+            "description": "`aspectRatio` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/aspectRatio",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-aspectratio",
             "support": {
@@ -103,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,7 +117,7 @@
         },
         "autoGainControl_constraint": {
           "__compat": {
-            "description": "<code>autoGainControl</code> constraint",
+            "description": "`autoGainControl` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/autoGainControl",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-autogaincontrol",
             "support": {
@@ -146,7 +149,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -157,7 +161,7 @@
         },
         "channelCount_constraint": {
           "__compat": {
-            "description": "<code>channelCount</code> constraint",
+            "description": "`channelCount` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/channelCount",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-channelcount",
             "support": {
@@ -183,7 +187,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -194,7 +199,7 @@
         },
         "deviceId_constraint": {
           "__compat": {
-            "description": "<code>deviceId</code> constraint",
+            "description": "`deviceId` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/deviceId",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-deviceid",
             "support": {
@@ -207,11 +212,11 @@
               },
               "firefox": {
                 "version_added": "43",
-                "notes": "Before Firefox 69, Firefox only supported <code>deviceId</code> in constraints passed into <code>getUserMedia()</code>."
+                "notes": "Before Firefox 69, Firefox only supported `deviceId` in constraints passed into `getUserMedia()`."
               },
               "firefox_android": {
                 "version_added": "43",
-                "notes": "Firefox for Android only supports <code>deviceId</code> when used in constraints passed into <code>getUserMedia()</code>."
+                "notes": "Firefox for Android only supports `deviceId` when used in constraints passed into `getUserMedia()`."
               },
               "ie": {
                 "version_added": false
@@ -224,7 +229,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -235,9 +241,12 @@
         },
         "displaySurface_constraint": {
           "__compat": {
-            "description": "<code>displaySurface</code> constraint",
+            "description": "`displaySurface` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/displaySurface",
             "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-mediatrackconstraintset-displaysurface",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": {
                 "version_added": "107"
@@ -259,7 +268,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -270,7 +280,7 @@
         },
         "echoCancellation_constraint": {
           "__compat": {
-            "description": "<code>echoCancellation</code> constraint",
+            "description": "`echoCancellation` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/echoCancellation",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-echocancellation",
             "support": {
@@ -296,7 +306,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -307,7 +318,7 @@
         },
         "facingMode_constraint": {
           "__compat": {
-            "description": "<code>facingMode</code> constraint",
+            "description": "`facingMode` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/facingMode",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-facingmode",
             "support": {
@@ -333,7 +344,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -344,7 +356,7 @@
         },
         "frameRate_constraint": {
           "__compat": {
-            "description": "<code>frameRate</code> constraint",
+            "description": "`frameRate` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/frameRate",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-framerate",
             "support": {
@@ -370,7 +382,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -381,7 +394,7 @@
         },
         "groupId_constraint": {
           "__compat": {
-            "description": "<code>groupId</code> constraint",
+            "description": "`groupId` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/groupId",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-groupid",
             "support": {
@@ -407,7 +420,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -418,7 +432,7 @@
         },
         "height_constraint": {
           "__compat": {
-            "description": "<code>height</code> constraint",
+            "description": "`height` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/height",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-height",
             "support": {
@@ -444,7 +458,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -455,7 +470,7 @@
         },
         "latency_constraint": {
           "__compat": {
-            "description": "<code>latency</code> constraint",
+            "description": "`latency` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/latency",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-latency",
             "support": {
@@ -481,7 +496,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -492,9 +508,12 @@
         },
         "logicalSurface_constraint": {
           "__compat": {
-            "description": "<code>logicalSurface</code> constraint",
+            "description": "`logicalSurface` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/logicalSurface",
             "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-mediatrackconstraintset-logicalsurface",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -516,7 +535,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -527,7 +547,7 @@
         },
         "noiseSuppression_constraint": {
           "__compat": {
-            "description": "<code>noiseSuppression</code> constraint",
+            "description": "`noiseSuppression` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/noiseSuppression",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-noisesuppression",
             "support": {
@@ -559,7 +579,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -570,7 +591,7 @@
         },
         "resizeMode_constraint": {
           "__compat": {
-            "description": "<code>resizeMode</code> constraint",
+            "description": "`resizeMode` constraint",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-resizemode",
             "support": {
               "chrome": {
@@ -593,7 +614,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -604,7 +626,7 @@
         },
         "sampleRate_constraint": {
           "__compat": {
-            "description": "<code>sampleRate</code> constraint",
+            "description": "`sampleRate` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/sampleRate",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-samplerate",
             "support": {
@@ -630,7 +652,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -641,7 +664,7 @@
         },
         "sampleSize_constraint": {
           "__compat": {
-            "description": "<code>sampleSize</code> constraint",
+            "description": "`sampleSize` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/sampleSize",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-samplesize",
             "support": {
@@ -667,7 +690,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -678,9 +702,12 @@
         },
         "suppressLocalAudioPlayback_constraint": {
           "__compat": {
-            "description": "<code>suppressLocalAudioPlayback</code> constraint",
+            "description": "`suppressLocalAudioPlayback` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/suppressLocalAudioPlayback",
             "spec_url": "https://w3c.github.io/mediacapture-screen-share/#dom-mediatrackconstraintset-suppresslocalaudioplayback",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -702,7 +729,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -713,7 +741,7 @@
         },
         "volume_constraint": {
           "__compat": {
-            "description": "<code>volume</code> constraint",
+            "description": "`volume` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/volume",
             "support": {
               "chrome": {
@@ -738,7 +766,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -749,7 +778,7 @@
         },
         "width_constraint": {
           "__compat": {
-            "description": "<code>width</code> constraint",
+            "description": "`width` constraint",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaTrackConstraints/width",
             "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-width",
             "support": {
@@ -775,7 +804,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -787,7 +817,7 @@
       },
       "capturehandlechange_event": {
         "__compat": {
-          "description": "<code>capturehandlechange</code> event",
+          "description": "`capturehandlechange` event",
           "spec_url": [
             "https://w3c.github.io/mediacapture-handle/identity/#capturehandlechange",
             "https://w3c.github.io/mediacapture-handle/identity/#oncapturehandlechange"
@@ -815,7 +845,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -851,7 +882,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -885,7 +917,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -924,7 +957,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -935,7 +969,7 @@
       },
       "ended_event": {
         "__compat": {
-          "description": "<code>ended</code> event",
+          "description": "`ended` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/ended_event",
           "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediastreamtrack-onended",
           "support": {
@@ -961,7 +995,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -983,7 +1018,7 @@
               "version_added": "12"
             },
             "firefox": {
-              "version_added": false
+              "version_added": "132"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -997,7 +1032,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1032,7 +1068,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1072,7 +1109,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "53"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1108,7 +1146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1147,7 +1186,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1186,7 +1226,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1225,7 +1266,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1236,7 +1278,7 @@
       },
       "mute_event": {
         "__compat": {
-          "description": "<code>mute</code> event",
+          "description": "`mute` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/mute_event",
           "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediastreamtrack-onmute",
           "support": {
@@ -1262,7 +1304,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1286,7 +1329,7 @@
             "firefox": {
               "version_added": "59",
               "partial_implementation": true,
-              "notes": "Does not currently track the microphone's muted state from the operating system, see <a href='https://bugzil.la/1739163'>bug 1739163</a>."
+              "notes": "Does not currently track the microphone's muted state from the operating system, see [bug 1739163](https://bugzil.la/1739163)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1300,7 +1343,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1336,7 +1380,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1375,7 +1420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1386,7 +1432,7 @@
       },
       "unmute_event": {
         "__compat": {
-          "description": "<code>unmute</code> event",
+          "description": "`unmute` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/unmute_event",
           "spec_url": "https://w3c.github.io/mediacapture-main/#event-mediastreamtrack-unmute",
           "support": {
@@ -1412,7 +1458,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaStreamTrackAudioSourceNode.json b/api/MediaStreamTrackAudioSourceNode.json
index b096235e1142d8..46dc78a2742366 100644
--- a/api/MediaStreamTrackAudioSourceNode.json
+++ b/api/MediaStreamTrackAudioSourceNode.json
@@ -29,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,7 +40,7 @@
       },
       "MediaStreamTrackAudioSourceNode": {
         "__compat": {
-          "description": "<code>MediaStreamTrackAudioSourceNode()</code> constructor",
+          "description": "`MediaStreamTrackAudioSourceNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamTrackAudioSourceNode/MediaStreamTrackAudioSourceNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-mediastreamtrackaudiosourcenode-mediastreamtrackaudiosourcenode",
           "tags": [
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaStreamTrackEvent.json b/api/MediaStreamTrackEvent.json
index 2cc45af566e522..35b1a6e20d3ebe 100644
--- a/api/MediaStreamTrackEvent.json
+++ b/api/MediaStreamTrackEvent.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,7 +38,7 @@
       },
       "MediaStreamTrackEvent": {
         "__compat": {
-          "description": "<code>MediaStreamTrackEvent()</code> constructor",
+          "description": "`MediaStreamTrackEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamTrackEvent/MediaStreamTrackEvent",
           "spec_url": "https://w3c.github.io/mediacapture-main/#dom-mediastreamtrackevent-constructor",
           "support": {
@@ -63,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MediaStreamTrackGenerator.json b/api/MediaStreamTrackGenerator.json
index bc853e598e367c..ed7c83e126c0f8 100644
--- a/api/MediaStreamTrackGenerator.json
+++ b/api/MediaStreamTrackGenerator.json
@@ -24,7 +24,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -34,7 +35,7 @@
       },
       "MediaStreamTrackGenerator": {
         "__compat": {
-          "description": "<code>MediaStreamTrackGenerator()</code> constructor",
+          "description": "`MediaStreamTrackGenerator()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamTrackGenerator/MediaStreamTrackGenerator",
           "support": {
             "chrome": {
@@ -57,7 +58,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -90,7 +92,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/MediaStreamTrackProcessor.json b/api/MediaStreamTrackProcessor.json
index 9b72b0eb5384de..d8ef6da91d8440 100644
--- a/api/MediaStreamTrackProcessor.json
+++ b/api/MediaStreamTrackProcessor.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,7 +38,7 @@
       },
       "MediaStreamTrackProcessor": {
         "__compat": {
-          "description": "<code>MediaStreamTrackProcessor()</code> constructor",
+          "description": "`MediaStreamTrackProcessor()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MediaStreamTrackProcessor/MediaStreamTrackProcessor",
           "spec_url": "https://w3c.github.io/mediacapture-transform/#dom-mediastreamtrackprocessor-mediastreamtrackprocessor",
           "support": {
@@ -61,7 +62,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -95,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MerchantValidationEvent.json b/api/MerchantValidationEvent.json
index 74d6f1248c92d3..6da712b36cb20d 100644
--- a/api/MerchantValidationEvent.json
+++ b/api/MerchantValidationEvent.json
@@ -32,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "MerchantValidationEvent": {
         "__compat": {
-          "description": "<code>MerchantValidationEvent()</code> constructor",
+          "description": "`MerchantValidationEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MerchantValidationEvent/MerchantValidationEvent",
           "support": {
             "chrome": {
@@ -73,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,7 +86,7 @@
       },
       "complete": {
         "__compat": {
-          "description": "<code>complete()</code>",
+          "description": "`complete()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MerchantValidationEvent/complete",
           "support": {
             "chrome": {
@@ -115,7 +117,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,7 +159,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -197,7 +201,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MessageChannel.json b/api/MessageChannel.json
index 4f7391a8a36a9c..ce1dc2cdd9937f 100644
--- a/api/MessageChannel.json
+++ b/api/MessageChannel.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageChannel",
         "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#message-channels",
+        "tags": [
+          "web-features:channel-messaging"
+        ],
         "support": {
           "chrome": {
             "version_added": "2"
@@ -27,10 +30,9 @@
               "version_added": "15.0.0"
             },
             {
-              "version_added": "10.5.0",
-              "version_removed": "15.0.0",
+              "version_added": "11.7.0",
               "partial_implementation": true,
-              "notes": "Must be imported from the <code>worker_threads</code> module."
+              "notes": "Available as a part of the `worker_threads` module."
             }
           ],
           "oculus": "mirror",
@@ -45,7 +47,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -55,9 +58,12 @@
       },
       "MessageChannel": {
         "__compat": {
-          "description": "<code>MessageChannel()</code> constructor",
+          "description": "`MessageChannel()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageChannel/MessageChannel",
           "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messagechannel-dev",
+          "tags": [
+            "web-features:channel-messaging"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -76,17 +82,9 @@
             "ie": {
               "version_added": "10"
             },
-            "nodejs": [
-              {
-                "version_added": "15.0.0"
-              },
-              {
-                "version_added": "10.5.0",
-                "version_removed": "15.0.0",
-                "partial_implementation": true,
-                "notes": "Must be imported from the <code>worker_threads</code> module."
-              }
-            ],
+            "nodejs": {
+              "version_added": "11.7.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "10.6"
@@ -99,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -112,6 +111,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageChannel/port1",
           "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messagechannel-port1-dev",
+          "tags": [
+            "web-features:channel-messaging"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -131,7 +133,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -145,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,6 +161,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageChannel/port2",
           "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messagechannel-port2-dev",
+          "tags": [
+            "web-features:channel-messaging"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -177,7 +183,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -191,7 +197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MessageEvent.json b/api/MessageEvent.json
index fef62fb07e6373..618325de0ab04b 100644
--- a/api/MessageEvent.json
+++ b/api/MessageEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageEvent",
         "spec_url": "https://html.spec.whatwg.org/multipage/comms.html#the-messageevent-interface",
+        "tags": [
+          "web-features:postmessage"
+        ],
         "support": {
           "chrome": {
             "version_added": "2"
@@ -39,7 +42,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,9 +53,12 @@
       },
       "MessageEvent": {
         "__compat": {
-          "description": "<code>MessageEvent()</code> constructor",
+          "description": "`MessageEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageEvent/MessageEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/comms.html#the-messageevent-interface:dom-event-constructor",
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -85,7 +92,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -98,6 +106,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageEvent/data",
           "spec_url": "https://html.spec.whatwg.org/multipage/comms.html#dom-messageevent-data-dev",
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -133,7 +144,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,7 +192,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -193,6 +206,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageEvent/lastEventId",
           "spec_url": "https://html.spec.whatwg.org/multipage/comms.html#dom-messageevent-lasteventid-dev",
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -228,7 +244,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,6 +258,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageEvent/origin",
           "spec_url": "https://html.spec.whatwg.org/multipage/comms.html#dom-messageevent-origin-dev",
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -276,7 +296,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -289,6 +310,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageEvent/ports",
           "spec_url": "https://html.spec.whatwg.org/multipage/comms.html#dom-messageevent-ports-dev",
+          "tags": [
+            "web-features:channel-messaging"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -324,7 +348,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -337,6 +362,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessageEvent/source",
           "spec_url": "https://html.spec.whatwg.org/multipage/comms.html#dom-messageevent-source-dev",
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -372,7 +400,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -380,6 +409,45 @@
             "deprecated": false
           }
         }
+      },
+      "userActivation": {
+        "__compat": {
+          "support": {
+            "chrome": {
+              "version_added": "72"
+            },
+            "chrome_android": "mirror",
+            "deno": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "nodejs": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": false,
+            "deprecated": false
+          }
+        }
       }
     }
   }
diff --git a/api/MessagePort.json b/api/MessagePort.json
index f52840c7854f28..57efc01c28ac50 100644
--- a/api/MessagePort.json
+++ b/api/MessagePort.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort",
         "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#message-ports",
+        "tags": [
+          "web-features:channel-messaging"
+        ],
         "support": {
           "chrome": {
             "version_added": "2"
@@ -24,12 +27,21 @@
           },
           "nodejs": [
             {
-              "version_added": "14.7.0"
+              "version_added": "15.0.0"
             },
             {
-              "version_added": "10.5.0",
+              "version_added": "14.7.0",
+              "partial_implementation": true,
+              "notes": "Available as a part of the `worker_threads` module."
+            },
+            {
+              "version_added": "11.7.0",
               "version_removed": "14.7.0",
-              "notes": "Is a Node <code>EventEmitter</code> instead of DOM <code>EventTarget</code>."
+              "partial_implementation": true,
+              "notes": [
+                "Available as a part of the `worker_threads` module.",
+                "Inherits from Node `EventEmitter` instead of DOM `EventTarget`."
+              ]
             }
           ],
           "oculus": "mirror",
@@ -44,7 +56,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -74,7 +87,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -92,7 +105,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,6 +119,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/close",
           "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messageport-close-dev",
+          "tags": [
+            "web-features:channel-messaging"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -123,17 +140,9 @@
             "ie": {
               "version_added": "10"
             },
-            "nodejs": [
-              {
-                "version_added": "14.7.0"
-              },
-              {
-                "version_added": "10.5.0",
-                "version_removed": "14.7.0",
-                "partial_implementation": true,
-                "notes": "Supports the event, but only via Node <code>EventEmitter</code>."
-              }
-            ],
+            "nodejs": {
+              "version_added": "11.7.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "10.6"
@@ -146,7 +155,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -157,12 +167,15 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/message_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-message",
             "https://html.spec.whatwg.org/multipage/web-messaging.html#handler-messageport-onmessage"
           ],
+          "tags": [
+            "web-features:channel-messaging"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -186,10 +199,10 @@
                 "version_added": "14.7.0"
               },
               {
-                "version_added": "10.5.0",
+                "version_added": "11.7.0",
                 "version_removed": "14.7.0",
                 "partial_implementation": true,
-                "notes": "Supports the event, but only via Node <code>EventEmitter</code>."
+                "notes": "Supports the event, but only via Node `EventEmitter`."
               }
             ],
             "oculus": "mirror",
@@ -206,7 +219,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -217,7 +231,7 @@
       },
       "messageerror_event": {
         "__compat": {
-          "description": "<code>messageerror</code> event",
+          "description": "`messageerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/messageerror_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-messageerror",
@@ -252,7 +266,13 @@
                 "version_added": "14.5.0",
                 "version_removed": "14.7.0",
                 "partial_implementation": true,
-                "notes": "Supports the event, but only via Node <code>EventEmitter</code>."
+                "notes": "Supports the event, but only via Node `EventEmitter`."
+              },
+              {
+                "version_added": "12.19.0",
+                "version_removed": "13.0.0",
+                "partial_implementation": true,
+                "notes": "Supports the event, but only via Node `EventEmitter`."
               }
             ],
             "oculus": "mirror",
@@ -261,12 +281,12 @@
               "version_added": "47"
             },
             "safari": {
-              "version_added": "16.4",
-              "impl_url": "https://webkit.org/b/171216"
+              "version_added": "16.4"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -279,6 +299,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/postMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messageport-postmessage-dev",
+          "tags": [
+            "web-features:channel-messaging"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -287,15 +310,15 @@
             "deno": [
               {
                 "version_added": "1.14",
-                "notes": "The <code>message</code> parameter does not support cloning <code>Blob</code> values."
+                "notes": "The `message` parameter does not support cloning `Blob` values."
               },
               {
                 "version_added": "1.12",
                 "version_removed": "1.14",
                 "partial_implementation": true,
                 "notes": [
-                  "The <code>message</code> parameter does not support cloning <code>Blob</code> values.",
-                  "The <code>transfer</code> parameter does not accept <code>ArrayBuffer</code> items. Passing an <code>ArrayBuffer</code> results in an error being thrown."
+                  "The `message` parameter does not support cloning `Blob` values.",
+                  "The `transfer` parameter does not accept `ArrayBuffer` items. Passing an `ArrayBuffer` results in an error being thrown."
                 ]
               }
             ],
@@ -310,7 +333,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -324,19 +347,63 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "options_includeUserActivation_parameter": {
+          "__compat": {
+            "description": "`options.includeUserActivation` parameter",
+            "support": {
+              "chrome": {
+                "version_added": "72"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": false,
+              "deprecated": false
+            }
+          }
         }
       },
       "start": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MessagePort/start",
           "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messageport-start-dev",
+          "tags": [
+            "web-features:channel-messaging"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -356,7 +423,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -370,7 +437,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Metadata.json b/api/Metadata.json
index 08b7e9ab7ed239..78fd440584614f 100644
--- a/api/Metadata.json
+++ b/api/Metadata.json
@@ -30,7 +30,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -68,7 +69,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +109,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/MimeType.json b/api/MimeType.json
index 9b8a5464ebdc8e..c87547db478343 100644
--- a/api/MimeType.json
+++ b/api/MimeType.json
@@ -34,7 +34,8 @@
             "version_removed": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -75,7 +76,8 @@
               "version_removed": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,7 +119,8 @@
               "version_removed": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,7 +162,8 @@
               "version_removed": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,7 +205,8 @@
               "version_removed": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MimeTypeArray.json b/api/MimeTypeArray.json
index 8d2b9c06cb1d9b..7d48a783b260cd 100644
--- a/api/MimeTypeArray.json
+++ b/api/MimeTypeArray.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
             "webview_android": {
               "version_added": "≤37",
               "notes": "Before version 59, method parameters were optional"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -115,7 +117,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +164,8 @@
             "webview_android": {
               "version_added": "≤37",
               "notes": "Before version 59, method parameters were optional"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MouseEvent.json b/api/MouseEvent.json
index a5290ddacd6d52..f55001a4af6ae6 100644
--- a/api/MouseEvent.json
+++ b/api/MouseEvent.json
@@ -38,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,7 +49,7 @@
       },
       "MouseEvent": {
         "__compat": {
-          "description": "<code>MouseEvent()</code> constructor",
+          "description": "`MouseEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MouseEvent/MouseEvent",
           "spec_url": "https://w3c.github.io/uievents/#dom-mouseevent-mouseevent",
           "tags": [
@@ -77,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -122,7 +124,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -167,7 +170,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -209,7 +213,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +259,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -299,7 +305,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -344,7 +351,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -383,7 +391,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -393,7 +402,7 @@
         },
         "accel_support": {
           "__compat": {
-            "description": "<code>\"Accel\"</code> parameter",
+            "description": "`\"Accel\"` parameter",
             "support": {
               "chrome": {
                 "version_added": false
@@ -415,7 +424,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -458,7 +468,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -493,7 +504,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -528,7 +540,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -573,7 +586,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -652,7 +666,8 @@
                 "version_removed": "3.0"
               }
             ],
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -731,7 +746,8 @@
                 "version_removed": "3.0"
               }
             ],
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -778,7 +794,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -825,7 +842,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -870,7 +888,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -915,7 +934,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -960,7 +980,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1005,7 +1026,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1050,7 +1072,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1095,7 +1118,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1140,7 +1164,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1185,7 +1210,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MouseScrollEvent.json b/api/MouseScrollEvent.json
index f414f5f9a2366c..c036e9b399d0d4 100644
--- a/api/MouseScrollEvent.json
+++ b/api/MouseScrollEvent.json
@@ -24,7 +24,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/MutationEvent.json b/api/MutationEvent.json
index ae4bcf4f1e2708..5a9a50ba8b8d1e 100644
--- a/api/MutationEvent.json
+++ b/api/MutationEvent.json
@@ -33,7 +33,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -74,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,7 +118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,7 +204,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -242,7 +247,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -284,7 +290,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MutationObserver.json b/api/MutationObserver.json
index 8f13a651116ffb..30f0df37af8744 100644
--- a/api/MutationObserver.json
+++ b/api/MutationObserver.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserver",
         "spec_url": "https://dom.spec.whatwg.org/#interface-mutationobserver",
+        "tags": [
+          "web-features:mutationobserver"
+        ],
         "support": {
           "chrome": [
             {
@@ -51,7 +54,8 @@
               "prefix": "WebKit",
               "version_added": "≤37"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -61,9 +65,12 @@
       },
       "MutationObserver": {
         "__compat": {
-          "description": "<code>MutationObserver()</code> constructor",
+          "description": "`MutationObserver()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserver/MutationObserver",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationobserver-mutationobserver①",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": [
               {
@@ -111,7 +118,8 @@
                 "prefix": "WebKit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -124,6 +132,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserver/disconnect",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationobserver-disconnect①",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "18"
@@ -147,7 +158,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -160,41 +172,45 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserver/observe",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationobserver-observe②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "18",
-              "notes": "Before Chrome 33, <code>attributes: true</code> is required when using <code>attributeFilter</code> or <code>attributeOldValue</code>. If <code>attributes: true</code> is not present, then Chrome throws a syntax error."
+              "notes": "Before Chrome 33, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Chrome throws a syntax error."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Before Edge 79, <code>attributes: true</code> is required when using <code>attributeFilter</code> or <code>attributeOldValue</code>. If <code>attributes: true</code> is not present, then Edge throws a syntax error."
+              "notes": "Before Edge 79, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Edge throws a syntax error."
             },
             "firefox": {
               "version_added": "14",
-              "notes": "Before Firefox 36, <code>attributes: true</code> is required when using <code>attributeFilter</code> or <code>attributeOldValue</code>. If <code>attributes: true</code> is not present, then Firefox throws a syntax error."
+              "notes": "Before Firefox 36, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Firefox throws a syntax error."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "11",
-              "notes": "Internet Explorer requires <code>attributes: true</code> when using <code>attributeFilter</code> or <code>attributeOldValue</code>. If <code>attributes: true</code> is not present, then Internet Explorer throws a syntax error."
+              "notes": "Internet Explorer requires `attributes: true` when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Internet Explorer throws a syntax error."
             },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
               "version_added": "6",
-              "notes": "Before Safari 10.1, <code>attributes: true</code> is required when using <code>attributeFilter</code> or <code>attributeOldValue</code>. If <code>attributes: true</code> is not present, then Safari throws a syntax error."
+              "notes": "Before Safari 10.1, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Safari throws a syntax error."
             },
             "safari_ios": {
               "version_added": "6",
-              "notes": "Before Safari iOS 10.3, <code>attributes: true</code> is required when using <code>attributeFilter</code> or <code>attributeOldValue</code>. If <code>attributes: true</code> is not present, then Safari throws a syntax error."
+              "notes": "Before Safari iOS 10.3, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Safari throws a syntax error."
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4",
-              "notes": "Before WebView 4.4.3, <code>attributes: true</code> is required when using <code>attributeFilter</code> or <code>attributeOldValue</code>. If <code>attributes: true</code> is not present, then WebView throws a syntax error."
-            }
+              "notes": "Before WebView 4.4.3, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then WebView throws a syntax error."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,6 +223,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationObserver/takeRecords",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationobserver-takerecords①",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "20"
@@ -230,7 +249,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/MutationRecord.json b/api/MutationRecord.json
index 9e2a55d232956e..f6d7cecea540c9 100644
--- a/api/MutationRecord.json
+++ b/api/MutationRecord.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord",
         "spec_url": "https://dom.spec.whatwg.org/#interface-mutationrecord",
+        "tags": [
+          "web-features:mutationobserver"
+        ],
         "support": {
           "chrome": {
             "version_added": "16"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord/addedNodes",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationrecord-addednodes②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord/attributeName",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationrecord-attributename②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord/attributeNamespace",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationrecord-attributenamespace②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord/nextSibling",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationrecord-nextsibling②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -170,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -183,6 +203,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord/oldValue",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationrecord-oldvalue②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -206,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -219,6 +243,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord/previousSibling",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationrecord-previoussibling②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -242,7 +269,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -255,6 +283,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord/removedNodes",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationrecord-removednodes②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -278,7 +309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,6 +323,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord/target",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationrecord-target②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -314,7 +349,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -327,6 +363,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/MutationRecord/type",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-mutationrecord-type②",
+          "tags": [
+            "web-features:mutationobserver"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -350,7 +389,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/NDEFMessage.json b/api/NDEFMessage.json
index 64b58fb10f4c25..6e76e3a553449f 100644
--- a/api/NDEFMessage.json
+++ b/api/NDEFMessage.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "NDEFMessage": {
         "__compat": {
-          "description": "<code>NDEFMessage()</code> constructor",
+          "description": "`NDEFMessage()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NDEFMessage/NDEFMessage",
           "spec_url": "https://w3c.github.io/web-nfc/#dom-ndefmessage-constructor",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NDEFReader.json b/api/NDEFReader.json
index aa5de1ea81e87b..4b8ed64094aac7 100644
--- a/api/NDEFReader.json
+++ b/api/NDEFReader.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "NDEFReader": {
         "__compat": {
-          "description": "<code>NDEFReader()</code> constructor",
+          "description": "`NDEFReader()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NDEFReader/NDEFReader",
           "spec_url": "https://w3c.github.io/web-nfc/#dom-ndefreader-constructor",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -119,6 +122,9 @@
       "makeReadOnly": {
         "__compat": {
           "spec_url": "https://w3c.github.io/web-nfc/#the-makereadonly-method",
+          "tags": [
+            "web-features:web-nfc"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -142,7 +148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -153,7 +160,7 @@
       },
       "reading_event": {
         "__compat": {
-          "description": "<code>reading</code> event",
+          "description": "`reading` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NDEFReader/reading_event",
           "spec_url": "https://w3c.github.io/web-nfc/#dom-ndefreader-onreading",
           "tags": [
@@ -182,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -193,7 +201,7 @@
       },
       "readingerror_event": {
         "__compat": {
-          "description": "<code>readingerror</code> event",
+          "description": "`readingerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NDEFReader/readingerror_event",
           "spec_url": "https://w3c.github.io/web-nfc/#dom-ndefreader-onreadingerror",
           "tags": [
@@ -222,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -261,7 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -300,7 +310,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NDEFReadingEvent.json b/api/NDEFReadingEvent.json
index 1af8e3298f078e..a3b1c298618ff0 100644
--- a/api/NDEFReadingEvent.json
+++ b/api/NDEFReadingEvent.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "NDEFReadingEvent": {
         "__compat": {
-          "description": "<code>NDEFReadingEvent()</code> constructor",
+          "description": "`NDEFReadingEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NDEFReadingEvent/NDEFReadingEvent",
           "spec_url": "https://w3c.github.io/web-nfc/#dom-ndefreadingevent-constructor",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -185,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NDEFRecord.json b/api/NDEFRecord.json
index a21963c5205771..7cbb03b161a6e9 100644
--- a/api/NDEFRecord.json
+++ b/api/NDEFRecord.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "NDEFRecord": {
         "__compat": {
-          "description": "<code>NDEFRecord()</code> constructor",
+          "description": "`NDEFRecord()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NDEFRecord/NDEFRecord",
           "spec_url": "https://w3c.github.io/web-nfc/#dom-ndefrecord-constructor",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -185,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -224,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -263,7 +269,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -302,7 +309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -341,7 +349,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -380,7 +389,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NamedNodeMap.json b/api/NamedNodeMap.json
index 3685112894ce5a..f4da081f02b277 100644
--- a/api/NamedNodeMap.json
+++ b/api/NamedNodeMap.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/NamedNodeMap",
         "spec_url": "https://dom.spec.whatwg.org/#interface-namednodemap",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -42,7 +45,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,6 +58,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NamedNodeMap/getNamedItem",
           "spec_url": "https://dom.spec.whatwg.org/#dom-namednodemap-getnameditem",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -81,7 +88,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -94,6 +102,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NamedNodeMap/getNamedItemNS",
           "spec_url": "https://dom.spec.whatwg.org/#dom-namednodemap-getnameditemns",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -121,7 +132,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,6 +146,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NamedNodeMap/item",
           "spec_url": "https://dom.spec.whatwg.org/#dom-namednodemap-item",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -161,7 +176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,6 +190,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NamedNodeMap/length",
           "spec_url": "https://dom.spec.whatwg.org/#dom-namednodemap-length",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -201,7 +220,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,6 +234,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NamedNodeMap/removeNamedItem",
           "spec_url": "https://dom.spec.whatwg.org/#dom-namednodemap-removenameditem",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -241,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,6 +278,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NamedNodeMap/removeNamedItemNS",
           "spec_url": "https://dom.spec.whatwg.org/#dom-namednodemap-removenameditemns",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -281,7 +308,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -294,6 +322,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NamedNodeMap/setNamedItem",
           "spec_url": "https://dom.spec.whatwg.org/#dom-namednodemap-setnameditem",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -321,7 +352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -334,6 +366,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NamedNodeMap/setNamedItemNS",
           "spec_url": "https://dom.spec.whatwg.org/#dom-namednodemap-setnameditemns",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -361,7 +396,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/NavigateEvent.json b/api/NavigateEvent.json
index 6385fad15c2eab..f2b8d5ec8d44e0 100644
--- a/api/NavigateEvent.json
+++ b/api/NavigateEvent.json
@@ -25,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/258384"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,7 +41,7 @@
       },
       "NavigateEvent": {
         "__compat": {
-          "description": "<code>NavigateEvent()</code> constructor",
+          "description": "`NavigateEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigateEvent/NavigateEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-navigateevent-interface",
           "tags": [
@@ -66,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -79,10 +82,19 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigateEvent/canIntercept",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigateevent-canintercept-dev",
+          "tags": [
+            "web-features:navigation"
+          ],
           "support": {
-            "chrome": {
-              "version_added": "105"
-            },
+            "chrome": [
+              {
+                "version_added": "105"
+              },
+              {
+                "alternative_name": "canTransition",
+                "version_added": "102"
+              }
+            ],
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
@@ -100,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -109,39 +122,6 @@
           }
         }
       },
-      "canTransition": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "102",
-              "version_removed": "108"
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
       "destination": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigateEvent/destination",
@@ -170,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -207,7 +188,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -244,7 +226,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -281,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -293,6 +277,9 @@
       "hasUAVisualTransition": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigateevent-hasuavisualtransition",
+          "tags": [
+            "web-features:navigation"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -314,7 +301,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -351,7 +339,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -364,10 +353,20 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigateEvent/intercept",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigateevent-intercept-dev",
+          "tags": [
+            "web-features:navigation"
+          ],
           "support": {
-            "chrome": {
-              "version_added": "105"
-            },
+            "chrome": [
+              {
+                "version_added": "105"
+              },
+              {
+                "alternative_name": "transitionWhile",
+                "version_added": "102",
+                "version_removed": "108"
+              }
+            ],
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
@@ -385,7 +384,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -422,7 +422,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -431,49 +432,24 @@
           }
         }
       },
-      "restoreScroll": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "102",
-              "version_removed": "108"
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": {
-              "version_added": false
-            },
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
       "scroll": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigateEvent/scroll",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigateevent-scroll-dev",
+          "tags": [
+            "web-features:navigation"
+          ],
           "support": {
-            "chrome": {
-              "version_added": "105"
-            },
+            "chrome": [
+              {
+                "version_added": "105"
+              },
+              {
+                "alternative_name": "restoreScroll",
+                "version_added": "102",
+                "version_removed": "108"
+              }
+            ],
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
@@ -491,7 +467,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -528,7 +505,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -537,41 +515,6 @@
           }
         }
       },
-      "transitionWhile": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "102",
-              "version_removed": "108"
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": {
-              "version_added": false
-            },
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
       "userInitiated": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigateEvent/userInitiated",
@@ -600,7 +543,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Navigation.json b/api/Navigation.json
index f9d2c6f6692362..808982fc8204c6 100644
--- a/api/Navigation.json
+++ b/api/Navigation.json
@@ -25,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/258384"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,9 +41,10 @@
       },
       "activation": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigation/activation",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigation-activation",
           "tags": [
-            "web-features:navigation-activation"
+            "web-features:navigation"
           ],
           "support": {
             "chrome": {
@@ -65,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -103,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -141,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -179,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -217,7 +224,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -228,7 +236,7 @@
       },
       "currententrychange_event": {
         "__compat": {
-          "description": "<code>currententrychange</code> event",
+          "description": "`currententrychange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigation/currententrychange_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-currententrychange",
           "tags": [
@@ -256,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -294,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -332,7 +342,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -370,7 +381,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -381,7 +393,7 @@
       },
       "navigate_event": {
         "__compat": {
-          "description": "<code>navigate</code> event",
+          "description": "`navigate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigation/navigate_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-navigate",
           "tags": [
@@ -409,7 +421,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -420,7 +433,7 @@
       },
       "navigateerror_event": {
         "__compat": {
-          "description": "<code>navigateerror</code> event",
+          "description": "`navigateerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigation/navigateerror_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-navigateerror",
           "tags": [
@@ -448,7 +461,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -459,7 +473,7 @@
       },
       "navigatesuccess_event": {
         "__compat": {
-          "description": "<code>navigatesuccess</code> event",
+          "description": "`navigatesuccess` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigation/navigatesuccess_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-navigatesuccess",
           "tags": [
@@ -487,7 +501,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -525,7 +540,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -563,7 +579,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -601,7 +618,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -639,7 +657,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NavigationActivation.json b/api/NavigationActivation.json
index 735d97bb9846cd..2819de938ff63a 100644
--- a/api/NavigationActivation.json
+++ b/api/NavigationActivation.json
@@ -5,17 +5,17 @@
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationActivation",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#navigationactivation",
         "tags": [
-          "web-features:navigation-activation"
+          "web-features:navigation"
         ],
         "support": {
           "chrome": {
-            "version_added": "123",
-            "impl_url": "https://crbug.com/40285670/"
+            "version_added": "123"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1777171"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -25,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/258384"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -42,12 +44,11 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationActivation/entry",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigationactivation-entry",
           "tags": [
-            "web-features:navigation-activation"
+            "web-features:navigation"
           ],
           "support": {
             "chrome": {
-              "version_added": "123",
-              "impl_url": "https://crbug.com/40285670/"
+              "version_added": "123"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -66,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -80,12 +82,11 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationActivation/from",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigationactivation-from",
           "tags": [
-            "web-features:navigation-activation"
+            "web-features:navigation"
           ],
           "support": {
             "chrome": {
-              "version_added": "123",
-              "impl_url": "https://crbug.com/40285670/"
+              "version_added": "123"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -104,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -118,12 +120,11 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationActivation/navigationType",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigationactivation-navigationtype",
           "tags": [
-            "web-features:navigation-activation"
+            "web-features:navigation"
           ],
           "support": {
             "chrome": {
-              "version_added": "123",
-              "impl_url": "https://crbug.com/40285670/"
+              "version_added": "123"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -142,7 +143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NavigationCurrentEntryChangeEvent.json b/api/NavigationCurrentEntryChangeEvent.json
index 2807e92e94695d..bbe2c6dcb2c6be 100644
--- a/api/NavigationCurrentEntryChangeEvent.json
+++ b/api/NavigationCurrentEntryChangeEvent.json
@@ -25,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/258384"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,7 +41,7 @@
       },
       "NavigationCurrentEntryChangeEvent": {
         "__compat": {
-          "description": "<code>NavigationCurrentEntryChangeEvent()</code> constructor",
+          "description": "`NavigationCurrentEntryChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationCurrentEntryChangeEvent/NavigationCurrentEntryChangeEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-navigationcurrententrychangeevent-interface",
           "tags": [
@@ -67,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -143,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NavigationDestination.json b/api/NavigationDestination.json
index 3f16a4cddb9a43..63834a62b62353 100644
--- a/api/NavigationDestination.json
+++ b/api/NavigationDestination.json
@@ -25,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/258384"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -66,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -104,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -142,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -180,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -218,7 +224,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -256,7 +263,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NavigationHistoryEntry.json b/api/NavigationHistoryEntry.json
index 5e7b224fc37071..135a9db9d6b43d 100644
--- a/api/NavigationHistoryEntry.json
+++ b/api/NavigationHistoryEntry.json
@@ -25,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/258384"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,7 +41,7 @@
       },
       "dispose_event": {
         "__compat": {
-          "description": "<code>dispose</code> event",
+          "description": "`dispose` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationHistoryEntry/dispose_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#handler-navigationhistoryentry-ondispose",
           "tags": [
@@ -67,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -143,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -181,7 +186,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -219,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -257,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -295,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NavigationPreloadManager.json b/api/NavigationPreloadManager.json
index 6fd73de0ecb65e..fd7f7030e10c07 100644
--- a/api/NavigationPreloadManager.json
+++ b/api/NavigationPreloadManager.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -98,7 +100,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,7 +137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -170,7 +174,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/NavigationTransition.json b/api/NavigationTransition.json
index 3ecaa30486df2f..7233312d376f10 100644
--- a/api/NavigationTransition.json
+++ b/api/NavigationTransition.json
@@ -25,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/258384"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -66,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -104,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -142,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Navigator.json b/api/Navigator.json
index 48f322b6901a8e..c246210c5ee456 100644
--- a/api/Navigator.json
+++ b/api/Navigator.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator",
         "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#the-navigator-object",
+        "tags": [
+          "web-features:navigator"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -22,6 +25,9 @@
           "ie": {
             "version_added": "4"
           },
+          "nodejs": {
+            "version_added": "21.0.0"
+          },
           "oculus": "mirror",
           "opera": {
             "version_added": "3"
@@ -34,7 +40,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -88,6 +95,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -98,7 +108,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,6 +138,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -135,7 +149,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -164,6 +179,9 @@
             "ie": {
               "version_added": "4"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1"
@@ -176,7 +194,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -204,6 +223,9 @@
             "ie": {
               "version_added": "4"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1"
@@ -216,7 +238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -244,6 +267,9 @@
             "ie": {
               "version_added": "4"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1"
@@ -256,7 +282,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -284,6 +311,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -292,7 +322,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -322,6 +353,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -330,7 +364,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -372,6 +407,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -383,8 +421,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/1100993"
-            }
+              "impl_url": "https://crbug.com/40703318"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -404,12 +443,15 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "2",
-              "notes": "Since Firefox 64, this property returns a fixed timestamp as a privacy measure - <code>20181001000000</code>."
+              "notes": "Since Firefox 64, this property returns a fixed timestamp as a privacy measure - `20181001000000`."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -418,7 +460,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -431,11 +474,14 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/canShare",
           "spec_url": "https://w3c.github.io/web-share/#canshare-data-method",
+          "tags": [
+            "web-features:share"
+          ],
           "support": {
             "chrome": {
               "version_added": "89",
               "partial_implementation": true,
-              "notes": "Only supported on ChromeOS and Windows, see <a href='https://crbug.com/770595'>bug 770595</a> and <a href='https://crbug.com/1144920'>bug 1144920</a>."
+              "notes": "Only supported on ChromeOS and Windows, see [bug 40542648](https://crbug.com/40542648) and [bug 40729163](https://crbug.com/40729163)."
             },
             "chrome_android": {
               "version_added": "75"
@@ -467,6 +513,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -476,8 +525,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40540400"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -487,8 +538,11 @@
         },
         "data_files_parameter": {
           "__compat": {
-            "description": "<code>data.files</code> parameter",
+            "description": "`data.files` parameter",
             "spec_url": "https://w3c.github.io/web-share/#dom-sharedata-files",
+            "tags": [
+              "web-features:share"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -506,6 +560,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -518,7 +575,8 @@
               },
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -529,8 +587,11 @@
         },
         "data_text_parameter": {
           "__compat": {
-            "description": "<code>data.text</code> parameter",
+            "description": "`data.text` parameter",
             "spec_url": "https://w3c.github.io/web-share/#dom-sharedata-text",
+            "tags": [
+              "web-features:share"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -548,6 +609,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -560,7 +624,8 @@
               },
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -591,6 +656,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": false
@@ -605,7 +673,11 @@
               "notes": "Badging is supported for web apps saved to the home screen."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Badging is supported for web apps saved to the home screen."
+            }
           },
           "status": {
             "experimental": false,
@@ -634,6 +706,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -642,7 +717,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -655,6 +731,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/connection",
           "spec_url": "https://wicg.github.io/netinfo/#connection-attribute",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -674,6 +753,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": {
@@ -687,7 +769,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "50"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -719,6 +802,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -740,7 +826,8 @@
               "partial_implementation": true,
               "notes": "This API was exposed but failed upon opening a contact selector."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -753,6 +840,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/cookieEnabled",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-cookieenabled-dev",
+          "tags": [
+            "web-features:cookie-enabled"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -763,12 +853,15 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 8, <code>navigator.cookieEnabled</code> would report the wrong result if a site exception was in place for the page on which the check was performed. This has been fixed."
+              "notes": "Before Firefox 8, `navigator.cookieEnabled` would report the wrong result if a site exception was in place for the page on which the check was performed. This has been fixed."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "4",
-              "notes": "<code>navigator.cookieEnabled</code> returns <code>true</code> even if the browser is set to block cookies (for example, if the page is in the <em>Restricted sites</em> security zone)."
+              "notes": "`navigator.cookieEnabled` returns `true` even if the browser is set to block cookies (for example, if the page is in the _Restricted sites_ security zone)."
+            },
+            "nodejs": {
+              "version_added": false
             },
             "oculus": "mirror",
             "opera": {
@@ -777,12 +870,21 @@
             "opera_android": {
               "version_added": "≤12.1"
             },
-            "safari": {
-              "version_added": "1"
-            },
+            "safari": [
+              {
+                "version_added": "18"
+              },
+              {
+                "version_added": "1",
+                "version_removed": "18",
+                "partial_implementation": true,
+                "notes": "Returns `true` even if the browser is set to block cookies if `navigator.cookieEnabled` is invoked inside a third-party `iframe`)"
+              }
+            ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -795,6 +897,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/credentials",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#framework-credential-management",
+          "tags": [
+            "web-features:credential-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -810,6 +915,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -818,7 +926,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -831,9 +940,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/deprecatedReplaceInURN",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-navigator-deprecatedreplaceinurn",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -844,6 +956,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -852,7 +967,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -878,6 +994,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -886,7 +1005,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -903,7 +1023,7 @@
           ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "132"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -914,6 +1034,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -924,7 +1047,8 @@
             "samsunginternet_android": {
               "version_added": "16.2"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -943,13 +1067,13 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "17",
-              "notes": "Before version 17, Edge implemented <code>window.doNotTrack</code>."
+              "notes": "Before version 17, Edge implemented `window.doNotTrack`."
             },
             "firefox": {
               "version_added": "9",
               "notes": [
-                "In Firefox, <code>navigator.doNotTrack</code> returns <code>\"unspecified\"</code> instead of <code>null</code>.",
-                "Before Firefox 32, <code>navigator.doNotTrack</code> would report values of <code>\"yes\"</code> and <code>\"no\"</code> rather than <code>\"1\"</code> and <code>\"0\"</code>."
+                "In Firefox, `navigator.doNotTrack` returns `\"unspecified\"` instead of `null`.",
+                "Before Firefox 32, `navigator.doNotTrack` would report values of `\"yes\"` and `\"no\"` rather than `\"1\"` and `\"0\"`."
               ]
             },
             "firefox_android": "mirror",
@@ -957,7 +1081,10 @@
               "prefix": "ms",
               "version_added": "9",
               "version_removed": "11",
-              "notes": "For IE11 and subsequent versions, use <code>window.doNotTrack</code>"
+              "notes": "For IE11 and subsequent versions, use `window.doNotTrack`"
+            },
+            "nodejs": {
+              "version_added": false
             },
             "oculus": "mirror",
             "opera": {
@@ -972,7 +1099,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -985,6 +1113,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/geolocation",
           "spec_url": "https://w3c.github.io/geolocation/#dom-navigator-geolocation",
+          "tags": [
+            "web-features:geolocation"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -1000,6 +1131,9 @@
             "ie": {
               "version_added": "9"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "10.6"
@@ -1016,7 +1150,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1027,6 +1162,9 @@
         "secure_context_required": {
           "__compat": {
             "description": "Secure context required",
+            "tags": [
+              "web-features:geolocation"
+            ],
             "support": {
               "chrome": {
                 "version_added": "47"
@@ -1040,6 +1178,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -1048,7 +1189,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1075,6 +1217,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1083,7 +1228,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1096,6 +1242,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/getBattery",
           "spec_url": "https://w3c.github.io/battery/#dom-navigator-getbattery",
+          "tags": [
+            "web-features:battery"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -1110,6 +1259,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1118,7 +1270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1129,6 +1282,9 @@
         "secure_context_required": {
           "__compat": {
             "description": "Secure context required",
+            "tags": [
+              "web-features:battery"
+            ],
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -1142,6 +1298,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": false
@@ -1152,7 +1311,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1189,6 +1349,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1205,7 +1368,8 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1238,6 +1402,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -1246,7 +1413,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1292,6 +1460,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": {
@@ -1304,7 +1475,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1348,6 +1520,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": [
               {
@@ -1389,7 +1564,8 @@
                 "prefix": "webkit",
                 "version_added": "40"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1404,7 +1580,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "notes": "Available on all platforms behind a flag, but currently only works on desktop in an <a href='https://webvr.info/get-chrome/'>experimental version of Chrome</a> (other builds won't return any devices when <code>Navigator.getVRDisplays()</code> is invoked)."
+              "notes": "Available on all platforms behind a flag, but currently only works on desktop in an [experimental version of Chrome](https://webvr.info/get-chrome/) (other builds won't return any devices when `Navigator.getVRDisplays()` is invoked)."
             },
             "chrome_android": {
               "version_added": "79",
@@ -1444,6 +1620,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": false
@@ -1456,7 +1635,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1468,6 +1648,7 @@
       "globalPrivacyControl": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/globalPrivacyControl",
+          "spec_url": "https://w3c.github.io/gpc/#dom-globalprivacycontrol-globalprivacycontrol",
           "support": {
             "chrome": {
               "version_added": false
@@ -1476,7 +1657,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "120",
-              "notes": "Opt-in to GPC using the Website Privacy Preference setting (<code>about:preferences#privacy</code>) checkbox 'Tell websites not to sell or share my data', or by setting the preference <code>privacy.globalprivacycontrol.enabled</code> to <code>true</code>."
+              "notes": "Opt-in to GPC using the Website Privacy Preference setting (`about:preferences#privacy`) checkbox 'Tell websites not to sell or share my data', or by setting the preference `privacy.globalprivacycontrol.enabled` to `true`."
             },
             "firefox_android": {
               "version_added": false
@@ -1484,6 +1665,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1492,11 +1676,12 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
-            "standard_track": false,
+            "standard_track": true,
             "deprecated": false
           }
         }
@@ -1543,6 +1728,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1551,7 +1739,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1564,6 +1753,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/hardwareConcurrency",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#dom-navigator-hardwareconcurrency-dev",
+          "tags": [
+            "web-features:hardware-concurrency"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -1582,16 +1774,26 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": "21.0.0"
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
-            "safari": {
-              "version_added": "10.1",
-              "version_removed": "11"
-            },
+            "safari": [
+              {
+                "version_added": "15.4",
+                "notes": "The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See [bug 233381](https://webkit.org/b/233381)."
+              },
+              {
+                "version_added": "10.1",
+                "version_removed": "11"
+              }
+            ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1612,7 +1814,8 @@
               "version_added": "89"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://crbug.com/40628009"
             },
             "edge": "mirror",
             "firefox": {
@@ -1622,6 +1825,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1630,7 +1836,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40163407"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1643,6 +1853,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/ink",
           "spec_url": "https://wicg.github.io/ink-enhancement/#navigator-interface-extensions",
+          "tags": [
+            "web-features:ink"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -1658,6 +1871,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1666,7 +1882,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1694,6 +1911,9 @@
             "ie": {
               "version_added": "6"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1"
@@ -1706,7 +1926,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1735,6 +1956,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1743,7 +1967,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1756,6 +1981,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/language",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-language-dev",
+          "tags": [
+            "web-features:language"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1769,14 +1997,17 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this property's value was also part of the user agent string, as reported by <code>navigator.userAgent</code>. Starting in Firefox 5, this property's value is based on the value of the <code>Accept-Language</code> <a href='https://developer.mozilla.org/docs/Web/HTTP/Headers'>HTTP header</a>."
+              "notes": "Before Firefox 4, this property's value was also part of the user agent string, as reported by `navigator.userAgent`. Starting in Firefox 5, this property's value is based on the value of the `Accept-Language` [HTTP header](https://developer.mozilla.org/docs/Web/HTTP/Headers)."
             },
             "firefox_android": {
               "version_added": "4"
             },
             "ie": {
               "version_added": "11",
-              "notes": "Closest available (non-standard) properties are <code>userLanguage</code> and <code>browserLanguage</code>."
+              "notes": "Closest available (non-standard) properties are `userLanguage` and `browserLanguage`."
+            },
+            "nodejs": {
+              "version_added": "21.2.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -1790,7 +2021,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1803,10 +2035,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/languages",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-languages-dev",
+          "tags": [
+            "web-features:language"
+          ],
           "support": {
             "chrome": {
               "version_added": "37",
-              "notes": "Before Chrome 65, <code>navigator.languages[0]</code> is not guaranteed to equal <code>navigator.language</code>."
+              "notes": "Before Chrome 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`."
             },
             "chrome_android": "mirror",
             "deno": {
@@ -1817,12 +2052,15 @@
             },
             "firefox": {
               "version_added": "32",
-              "notes": "In Firefox, the <code>navigator.languages</code> property's value is taken from the <code>intl.accept_languages</code> preference."
+              "notes": "In Firefox, the `navigator.languages` property's value is taken from the `intl.accept_languages` preference."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false,
-              "notes": "Closest available (non-standard) properties are <code>userLanguage</code> and <code>browserLanguage</code>."
+              "notes": "Closest available (non-standard) properties are `userLanguage` and `browserLanguage`."
+            },
+            "nodejs": {
+              "version_added": "21.2.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -1840,8 +2078,9 @@
             },
             "webview_android": {
               "version_added": "37",
-              "notes": "Before version 65, <code>navigator.languages[0]</code> is not guaranteed to equal <code>navigator.language</code>."
-            }
+              "notes": "Before version 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1870,6 +2109,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1878,7 +2120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1890,7 +2133,7 @@
       "login": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/login",
-          "spec_url": "https://fedidcg.github.io/FedCM/#dom-navigator-login",
+          "spec_url": "https://w3c-fedid.github.io/FedCM/#dom-navigator-login",
           "support": {
             "chrome": {
               "version_added": "120"
@@ -1904,6 +2147,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1914,7 +2160,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1939,6 +2186,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1947,7 +2197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1983,6 +2234,9 @@
                 "version_added": "10"
               }
             ],
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -1991,7 +2245,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2017,6 +2272,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "55"
@@ -2029,7 +2287,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2057,6 +2316,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -2065,7 +2327,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2091,6 +2354,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": false
@@ -2103,7 +2369,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2135,6 +2402,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -2144,8 +2414,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40611412"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2173,6 +2445,9 @@
             "ie": {
               "version_added": "4"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1"
@@ -2185,7 +2460,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2214,6 +2490,9 @@
               "ie": {
                 "version_added": "4"
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "≤12.1",
@@ -2230,7 +2509,8 @@
               "samsunginternet_android": {
                 "version_added": "1.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2255,8 +2535,7 @@
                   "name": "#web-machine-learning-neural-network",
                   "value_to_set": "Enabled"
                 }
-              ],
-              "notes": "Currently supported on ChromeOS and Windows only."
+              ]
             },
             "chrome_android": {
               "version_added": false
@@ -2272,6 +2551,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -2280,7 +2562,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2293,10 +2576,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/onLine",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-online-dev",
+          "tags": [
+            "web-features:online"
+          ],
           "support": {
             "chrome": {
               "version_added": "2",
-              "notes": "Earlier versions of Chrome incorrectly return true when a tab is first opened, but it starts reporting the correct connectivity status after the first network event. Windows: 11, macOS: 14, ChromeOS: 13, Linux: Always returns <code>true</code>. For history, see <a href='https://crbug.com/7469'>bug 7469</a>."
+              "notes": "Earlier versions of Chrome incorrectly return true when a tab is first opened, but it starts reporting the correct connectivity status after the first network event. Windows: 11, macOS: 14, ChromeOS: 13, Linux: Always returns `true`. For history, see [bug 40530968](https://crbug.com/40530968)."
             },
             "chrome_android": {
               "version_added": "18"
@@ -2306,23 +2592,26 @@
             },
             "firefox": {
               "version_added": "1.5",
-              "notes": "Since Firefox 4 the browser returns <code>true</code> when 'Work Offline' mode is disabled and <code>false</code> when it is enabled, regardless of actual connectivity. Since Firefox 41, on OS X and Windows, the returned values follow the actual network connectivity, unless 'Work offline' mode is selected (where it will always return <code>false</code>)."
+              "notes": "Since Firefox 4 the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity. Since Firefox 41, on OS X and Windows, the returned values follow the actual network connectivity, unless 'Work offline' mode is selected (where it will always return `false`)."
             },
             "firefox_android": {
               "version_added": "4"
             },
             "ie": {
               "version_added": "4",
-              "notes": "in Internet Explorer 8 'online' and 'offline' events are raised on the <code>document.body</code>; under IE 9 they are raised on both <code>document.body</code> and <code>window</code>."
+              "notes": "in Internet Explorer 8 'online' and 'offline' events are raised on the `document.body`; under IE 9 they are raised on both `document.body` and `window`."
+            },
+            "nodejs": {
+              "version_added": false
             },
             "oculus": "mirror",
             "opera": {
               "version_added": "3",
-              "notes": "From Opera 11.1 until Opera 12.1, the browser returns <code>true</code> when 'Work Offline' mode is disabled and <code>false</code> when it is enabled, regardless of actual connectivity."
+              "notes": "From Opera 11.1 until Opera 12.1, the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity."
             },
             "opera_android": {
               "version_added": "10.1",
-              "notes": "From Opera 11.1 until Opera 12.1, the browser returns <code>true</code> when 'Work Offline' mode is disabled and <code>false</code> when it is enabled, regardless of actual connectivity."
+              "notes": "From Opera 11.1 until Opera 12.1, the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity."
             },
             "safari": {
               "version_added": "4"
@@ -2332,8 +2621,9 @@
             "webview_android": {
               "version_added": "≤37",
               "partial_implementation": true,
-              "notes": "Can incorrectly return true, see <a href='https://crbug.com/811122'>bug 811122</a>."
-            }
+              "notes": "Can incorrectly return true, see [bug 41369933](https://crbug.com/41369933)."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2354,12 +2644,15 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "1",
-              "notes": "The preference <code>\"general.oscpu.override\"</code> can be used to set a value to be returned instead of the true CPU description. The preference setting is ignored for calls made by privileged code, which continue to get the actual CPU description."
+              "notes": "The preference `\"general.oscpu.override\"` can be used to set a value to be returned instead of the true CPU description. The preference setting is ignored for calls made by privileged code, which continue to get the actual CPU description."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -2368,7 +2661,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2381,6 +2675,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/pdfViewerEnabled",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-pdfviewerenabled",
+          "tags": [
+            "web-features:pdf-viewer"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -2394,6 +2691,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -2402,7 +2702,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2431,6 +2732,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -2441,8 +2745,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/490120"
-            }
+              "impl_url": "https://crbug.com/40418964"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2466,8 +2771,8 @@
             "firefox": {
               "version_added": "1",
               "notes": [
-                "Before Firefox 69, <code>platform</code> would report running on a 32-bit CPU if running the 32-bit version of Firefox on a 64-bit system.",
-                "You can override the value returned by <code>platform</code> by setting the preference <code>general.platform.override</code> to the string you wish to be returned instead."
+                "Before Firefox 69, `platform` would report running on a 32-bit CPU if running the 32-bit version of Firefox on a 64-bit system.",
+                "You can override the value returned by `platform` by setting the preference `general.platform.override` to the string you wish to be returned instead."
               ]
             },
             "firefox_android": {
@@ -2476,6 +2781,9 @@
             "ie": {
               "version_added": "4"
             },
+            "nodejs": {
+              "version_added": "21.2.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1"
@@ -2488,7 +2796,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2516,6 +2825,9 @@
             "ie": {
               "version_added": "4"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1"
@@ -2528,7 +2840,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2557,6 +2870,9 @@
               "ie": {
                 "version_added": "4"
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "≤12.1",
@@ -2573,7 +2889,8 @@
               "samsunginternet_android": {
                 "version_added": "1.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2603,18 +2920,23 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/149168"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/521319"
-            }
+              "impl_url": "https://crbug.com/234081017"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2642,6 +2964,9 @@
             "ie": {
               "version_added": "11"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -2650,7 +2975,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2666,12 +2992,12 @@
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Always returns <code>20030107</code>."
+              "notes": "Always returns `20030107`."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Always returns <code>20030107</code>."
+              "notes": "Always returns `20030107`."
             },
             "firefox": {
               "version_added": "1"
@@ -2680,16 +3006,20 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
               "version_added": "1",
-              "notes": "Always returns <code>20030107</code>."
+              "notes": "Always returns `20030107`."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2702,13 +3032,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/registerProtocolHandler",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#custom-handlers",
+          "tags": [
+            "web-features:registerprotocolhandler"
+          ],
           "support": {
             "chrome": {
               "version_added": "13",
-              "notes": "From Chrome 77, the URL parameter only accepts <code>http</code> or <code>https</code> URLs."
+              "notes": "From Chrome 77, the URL parameter only accepts `http` or `https` URLs."
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://crbug.com/40964464"
             },
             "edge": {
               "version_added": "79"
@@ -2720,6 +3054,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "11.6"
@@ -2730,7 +3067,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2760,6 +3098,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -2768,7 +3109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2779,7 +3121,7 @@
         },
         "scheme_parameter_bitcoin": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>bitcoin</code>",
+            "description": "`scheme` parameter supports `bitcoin`",
             "support": {
               "chrome": {
                 "version_added": "28"
@@ -2795,6 +3137,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -2803,7 +3148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2814,7 +3160,7 @@
         },
         "scheme_parameter_cabal": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>cabal</code>",
+            "description": "`scheme` parameter supports `cabal`",
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2830,6 +3176,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -2838,7 +3187,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2849,7 +3199,7 @@
         },
         "scheme_parameter_dat": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>dat</code>",
+            "description": "`scheme` parameter supports `dat`",
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2865,6 +3215,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -2873,7 +3226,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2884,7 +3238,7 @@
         },
         "scheme_parameter_did": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>did</code>",
+            "description": "`scheme` parameter supports `did`",
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2900,6 +3254,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -2908,7 +3265,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2919,7 +3277,7 @@
         },
         "scheme_parameter_dweb": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>dweb</code>",
+            "description": "`scheme` parameter supports `dweb`",
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2935,6 +3293,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -2943,7 +3304,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2954,7 +3316,7 @@
         },
         "scheme_parameter_ethereum": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>ethereum</code>",
+            "description": "`scheme` parameter supports `ethereum`",
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2970,6 +3332,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -2978,7 +3343,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2989,7 +3355,7 @@
         },
         "scheme_parameter_ftp": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>ftp</code>",
+            "description": "`scheme` parameter supports `ftp`",
             "support": {
               "chrome": {
                 "version_added": false
@@ -3003,6 +3369,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3011,7 +3380,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3022,7 +3392,7 @@
         },
         "scheme_parameter_ftps": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>ftps</code>",
+            "description": "`scheme` parameter supports `ftps`",
             "support": {
               "chrome": {
                 "version_added": false
@@ -3036,6 +3406,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3044,7 +3417,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3055,7 +3429,7 @@
         },
         "scheme_parameter_geo": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>geo</code>",
+            "description": "`scheme` parameter supports `geo`",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -3071,6 +3445,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3079,7 +3456,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3090,7 +3468,7 @@
         },
         "scheme_parameter_hyper": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>hyper</code>",
+            "description": "`scheme` parameter supports `hyper`",
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -3106,6 +3484,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3114,7 +3495,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3125,7 +3507,7 @@
         },
         "scheme_parameter_im": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>im</code>",
+            "description": "`scheme` parameter supports `im`",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -3141,6 +3523,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3149,7 +3534,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3160,7 +3546,7 @@
         },
         "scheme_parameter_ipfs": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>ipfs</code>",
+            "description": "`scheme` parameter supports `ipfs`",
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -3176,6 +3562,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3184,7 +3573,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3195,7 +3585,7 @@
         },
         "scheme_parameter_ipns": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>ipns</code>",
+            "description": "`scheme` parameter supports `ipns`",
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -3211,6 +3601,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3219,7 +3612,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3230,7 +3624,7 @@
         },
         "scheme_parameter_irc": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>irc</code>",
+            "description": "`scheme` parameter supports `irc`",
             "support": {
               "chrome": {
                 "version_added": "15"
@@ -3246,6 +3640,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.6"
@@ -3256,7 +3653,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3267,7 +3665,7 @@
         },
         "scheme_parameter_ircs": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>ircs</code>",
+            "description": "`scheme` parameter supports `ircs`",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -3283,6 +3681,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3291,7 +3692,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3302,7 +3704,7 @@
         },
         "scheme_parameter_magnet": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>magnet</code>",
+            "description": "`scheme` parameter supports `magnet`",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -3318,6 +3720,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3326,7 +3731,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3337,7 +3743,7 @@
         },
         "scheme_parameter_mailto": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>mailto</code>",
+            "description": "`scheme` parameter supports `mailto`",
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -3353,6 +3759,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.6"
@@ -3363,7 +3772,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3374,7 +3784,7 @@
         },
         "scheme_parameter_matrix": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>matrix</code>",
+            "description": "`scheme` parameter supports `matrix`",
             "support": {
               "chrome": {
                 "version_added": "92"
@@ -3390,6 +3800,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3398,7 +3811,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3409,7 +3823,7 @@
         },
         "scheme_parameter_mms": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>mms</code>",
+            "description": "`scheme` parameter supports `mms`",
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -3425,6 +3839,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.6"
@@ -3435,7 +3852,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3446,7 +3864,7 @@
         },
         "scheme_parameter_news": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>news</code>",
+            "description": "`scheme` parameter supports `news`",
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -3462,6 +3880,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.6"
@@ -3472,7 +3893,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3483,7 +3905,7 @@
         },
         "scheme_parameter_nntp": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>nntp</code>",
+            "description": "`scheme` parameter supports `nntp`",
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -3499,6 +3921,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.6"
@@ -3509,7 +3934,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3520,7 +3946,7 @@
         },
         "scheme_parameter_openpgp4fpr": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>openpgp4fpr</code>",
+            "description": "`scheme` parameter supports `openpgp4fpr`",
             "support": {
               "chrome": {
                 "version_added": "42"
@@ -3536,6 +3962,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3544,7 +3973,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3555,7 +3985,7 @@
         },
         "scheme_parameter_sftp": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>sftp</code>",
+            "description": "`scheme` parameter supports `sftp`",
             "support": {
               "chrome": {
                 "version_added": false
@@ -3569,6 +3999,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3577,7 +4010,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3588,7 +4022,7 @@
         },
         "scheme_parameter_sip": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>sip</code>",
+            "description": "`scheme` parameter supports `sip`",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -3604,6 +4038,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3612,7 +4049,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3623,7 +4061,7 @@
         },
         "scheme_parameter_sms": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>sms</code>",
+            "description": "`scheme` parameter supports `sms`",
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -3639,6 +4077,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.6"
@@ -3649,7 +4090,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3660,7 +4102,7 @@
         },
         "scheme_parameter_smsto": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>smsto</code>",
+            "description": "`scheme` parameter supports `smsto`",
             "support": {
               "chrome": {
                 "version_added": "26"
@@ -3676,6 +4118,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3684,7 +4129,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3695,7 +4141,7 @@
         },
         "scheme_parameter_ssb": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>ssb</code>",
+            "description": "`scheme` parameter supports `ssb`",
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -3711,6 +4157,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3719,7 +4168,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3730,7 +4180,7 @@
         },
         "scheme_parameter_ssh": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>ssh</code>",
+            "description": "`scheme` parameter supports `ssh`",
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -3746,6 +4196,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3754,7 +4207,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3765,7 +4219,7 @@
         },
         "scheme_parameter_tel": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>tel</code>",
+            "description": "`scheme` parameter supports `tel`",
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -3781,6 +4235,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.6"
@@ -3791,7 +4248,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3802,7 +4260,7 @@
         },
         "scheme_parameter_urn": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>urn</code>",
+            "description": "`scheme` parameter supports `urn`",
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -3818,6 +4276,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.6"
@@ -3828,7 +4289,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3839,7 +4301,7 @@
         },
         "scheme_parameter_webcal": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>webcal</code>",
+            "description": "`scheme` parameter supports `webcal`",
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -3855,6 +4317,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.6"
@@ -3865,7 +4330,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3876,7 +4342,7 @@
         },
         "scheme_parameter_wtai": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>wtai</code>",
+            "description": "`scheme` parameter supports `wtai`",
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -3892,6 +4358,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3900,7 +4369,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3911,7 +4381,7 @@
         },
         "scheme_parameter_xmpp": {
           "__compat": {
-            "description": "<code>scheme</code> parameter supports <code>xmpp</code>",
+            "description": "`scheme` parameter supports `xmpp`",
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -3927,6 +4397,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -3935,7 +4408,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3953,7 +4427,7 @@
             "chrome": {
               "version_added": "42",
               "notes": [
-                "The spec requires that the passed <code>supportedConfigurations</code> option contain at least one of <code>audioCapabilities</code> or <code>videoCapabilities</code>, and that said parameters include a codec string.",
+                "The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.",
                 "The function does not exist in insecure contexts. This was not enforced until Chrome 58."
               ]
             },
@@ -3964,21 +4438,24 @@
             "firefox": {
               "version_added": "38",
               "notes": [
-                "Starting in Firefox 55, if neither <code>audioCapabilities</code> nor <code>videoCapabilities</code> is specified in <code>supportedConfigurations</code>, a warning is output to the web console.",
-                "In addition, starting in Firefox 55, if in <code>supportedConfigurations</code>, either <code>audioCapabilities</code>'s or <code>videoCapabilities</code>'s <code>contentType</code> value doesn't specify a <code>\"codecs\"</code> substring to define allowed codecs within the media wrapper, a warning is output to the web console. See note below table for example and correction.",
-                "In the future, if neither <code>audioCapabilities</code> nor <code>videoCapabilities</code> is specified in the <code>supportedConfigurations</code>, a <code>NotSupported</code> exception will be thrown."
+                "Starting in Firefox 55, if neither `audioCapabilities` nor `videoCapabilities` is specified in `supportedConfigurations`, a warning is output to the web console.",
+                "In addition, starting in Firefox 55, if in `supportedConfigurations`, either `audioCapabilities`'s or `videoCapabilities`'s `contentType` value doesn't specify a `\"codecs\"` substring to define allowed codecs within the media wrapper, a warning is output to the web console. See note below table for example and correction.",
+                "In the future, if neither `audioCapabilities` nor `videoCapabilities` is specified in the `supportedConfigurations`, a `NotSupported` exception will be thrown."
               ]
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": {
               "version_added": "29",
               "notes": [
-                "The spec requires that the passed <code>supportedConfigurations</code> option contain at least one of <code>audioCapabilities</code> or <code>videoCapabilities</code>, and that said parameters include a codec string.",
+                "The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.",
                 "The function does not exist in insecure contexts. This was not enforced until Opera 45."
               ]
             },
@@ -3990,10 +4467,11 @@
             "webview_android": {
               "version_added": "43",
               "notes": [
-                "The spec requires that the passed <code>supportedConfigurations</code> option contain at least one of <code>audioCapabilities</code> or <code>videoCapabilities</code>, and that said parameters include a codec string.",
+                "The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.",
                 "The function does not exist in insecure contexts. This was not enforced until version 58."
               ]
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4017,7 +4495,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "108",
-              "notes": "API access is gated by installation of a <a href='https://support.mozilla.org/en-US/kb/site-permission-add-ons'>site permission add-on</a> (user prompt), secure context, and <a href='https://developer.mozilla.org/docs/Web/HTTP/Headers/Feature-Policy/midi'>Permission Policy: <code>midi</code></a>."
+              "notes": "API access is gated by installation of a [site permission add-on](https://support.mozilla.org/en-US/kb/site-permission-add-ons) (user prompt), secure context, and [`Permission Policy: midi`](https://developer.mozilla.org/docs/Web/HTTP/Headers/Feature-Policy/midi)."
             },
             "firefox_android": {
               "version_added": false
@@ -4025,6 +4503,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4034,7 +4515,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4045,6 +4527,9 @@
         "secure_context_required": {
           "__compat": {
             "description": "Secure context required",
+            "tags": [
+              "web-features:web-midi"
+            ],
             "support": {
               "chrome": {
                 "version_added": "43"
@@ -4060,6 +4545,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -4068,7 +4556,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4095,6 +4584,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "74"
@@ -4105,7 +4597,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4121,11 +4614,11 @@
           "support": {
             "chrome": {
               "version_added": "39",
-              "notes": "Starting in Chrome 59, this method cannot send a <code>Blob</code> whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see <a href='https://crbug.com/720283'>bug 720283</a>."
+              "notes": "Starting in Chrome 59, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see [bug 40087600](https://crbug.com/40087600)."
             },
             "chrome_android": {
               "version_added": "42",
-              "notes": "Starting in Chrome 59, this method cannot send a <code>Blob</code> whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see <a href='https://crbug.com/720283'>bug 720283</a>."
+              "notes": "Starting in Chrome 59, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see [bug 40087600](https://crbug.com/40087600)."
             },
             "edge": {
               "version_added": "14"
@@ -4137,6 +4630,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4147,8 +4643,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "40",
-              "notes": "Starting in Chrome 59, this method cannot send a <code>Blob</code> whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see <a href='https://crbug.com/720283'>bug 720283</a>."
-            }
+              "notes": "Starting in Chrome 59, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see [bug 40087600](https://crbug.com/40087600)."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4161,6 +4658,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/serial",
           "spec_url": "https://wicg.github.io/serial/#extensions-to-the-navigator-interface",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -4176,6 +4676,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4184,7 +4687,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40740509"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4207,12 +4714,15 @@
             },
             "firefox": {
               "version_added": "44",
-              "notes": "In Firefox private windows, the <code>serviceWorker</code> object is <code>undefined</code>. See <a href='https://bugzil.la/1320796'>bug 1320796</a>."
+              "notes": "In Firefox private windows, the `serviceWorker` object is `undefined`. See [bug 1320796](https://bugzil.la/1320796)."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4221,7 +4731,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -4251,6 +4764,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": false
@@ -4258,14 +4774,24 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "17",
-              "notes": "Badging is supported for installed web apps on macOS Sonoma and higher."
+              "notes": [
+                "Badging is supported for installed web apps on macOS Sonoma and higher.",
+                "Passing `0` as an argument will clear the badge instead of displaying an unnumbered dot."
+              ]
             },
             "safari_ios": {
               "version_added": "16.4",
-              "notes": "Badging is supported for web apps saved to the home screen."
+              "notes": [
+                "Badging is supported for web apps saved to the home screen.",
+                "Passing `0` as an argument will clear the badge instead of displaying an unnumbered dot."
+              ]
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Badging is supported for web apps saved to the home screen."
+            }
           },
           "status": {
             "experimental": false,
@@ -4278,11 +4804,14 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/share",
           "spec_url": "https://w3c.github.io/web-share/#share-method",
+          "tags": [
+            "web-features:share"
+          ],
           "support": {
             "chrome": {
               "version_added": "89",
               "partial_implementation": true,
-              "notes": "Only supported on ChromeOS and Windows, see <a href='https://crbug.com/770595'>bug 770595</a> and <a href='https://crbug.com/1144920'>bug 1144920</a>."
+              "notes": "Only supported on ChromeOS and Windows, see [bug 40542648](https://crbug.com/40542648) and [bug 40729163](https://crbug.com/40729163)."
             },
             "chrome_android": {
               "version_added": "61"
@@ -4314,6 +4843,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": {
@@ -4325,8 +4857,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40540400"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4336,8 +4870,11 @@
         },
         "data_files_parameter": {
           "__compat": {
-            "description": "<code>data.files</code> parameter",
+            "description": "`data.files` parameter",
             "spec_url": "https://w3c.github.io/web-share/#dom-sharedata-files",
+            "tags": [
+              "web-features:share"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -4355,6 +4892,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -4367,7 +4907,8 @@
               },
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4378,8 +4919,11 @@
         },
         "data_text_parameter": {
           "__compat": {
-            "description": "<code>data.text</code> parameter",
+            "description": "`data.text` parameter",
             "spec_url": "https://w3c.github.io/web-share/#dom-sharedata-text",
+            "tags": [
+              "web-features:share"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -4399,6 +4943,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -4411,7 +4958,8 @@
               },
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4425,6 +4973,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/storage",
           "spec_url": "https://storage.spec.whatwg.org/#dom-navigatorstorage-storage",
+          "tags": [
+            "web-features:storage-manager"
+          ],
           "support": {
             "chrome": {
               "version_added": "55"
@@ -4438,6 +4989,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4446,7 +5000,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4468,12 +5023,16 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1594740"
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4482,7 +5041,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4508,6 +5068,9 @@
             "ie": {
               "version_added": "6"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1",
@@ -4522,7 +5085,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4535,12 +5099,16 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/unregisterProtocolHandler",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-unregisterprotocolhandler-dev",
+          "tags": [
+            "web-features:registerprotocolhandler"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://crbug.com/40964464"
             },
             "edge": "mirror",
             "firefox": {
@@ -4550,6 +5118,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": [
               {
@@ -4566,7 +5137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4595,6 +5167,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4605,8 +5180,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "notes": "WebView exposes <code>navigator.usb</code>, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-            }
+              "notes": "WebView exposes `navigator.usb`, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4635,6 +5211,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4643,7 +5222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4656,6 +5236,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/userAgent",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-useragent-dev",
+          "tags": [
+            "web-features:user-agent-sniffing"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -4674,6 +5257,9 @@
             "ie": {
               "version_added": "4"
             },
+            "nodejs": {
+              "version_added": "21.1.0"
+            },
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1"
@@ -4686,7 +5272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4699,6 +5286,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/userAgentData",
           "spec_url": "https://wicg.github.io/ua-client-hints/#dom-navigatorua-useragentdata",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -4712,6 +5302,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4722,8 +5315,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "119",
-              "impl_url": "https://crbug.com/921655"
-            }
+              "impl_url": "https://crbug.com/40609350"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4734,6 +5328,9 @@
         "secure_context_required": {
           "__compat": {
             "description": "Secure context required",
+            "tags": [
+              "web-features:ua-client-hints"
+            ],
             "support": {
               "chrome": {
                 "version_added": "90"
@@ -4747,6 +5344,9 @@
               "ie": {
                 "version_added": false
               },
+              "nodejs": {
+                "version_added": false
+              },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -4757,7 +5357,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "119"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4786,6 +5387,9 @@
             "ie": {
               "version_added": "11"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4794,7 +5398,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4822,6 +5427,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4832,7 +5440,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4845,6 +5454,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/vibrate",
           "spec_url": "https://w3c.github.io/vibration/#dom-navigator-vibrate",
+          "tags": [
+            "web-features:vibration"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -4853,7 +5465,7 @@
               "version_added": "32",
               "notes": [
                 "Beginning in Chrome 55, this is not supported in cross-origin iframes.",
-                "Beginning in Chrome 60, this method requires a user gesture. Otherwise it returns <code>false</code>."
+                "Beginning in Chrome 60, this method requires a user gesture. Otherwise it returns `false`."
               ]
             },
             "edge": "mirror",
@@ -4862,8 +5474,8 @@
                 "version_added": "16",
                 "version_removed": "129",
                 "notes": [
-                  "Until Firefox 26 included, when the vibration pattern was too long or any of its elements too large, Firefox threw an exception instead of returning <code>false</code> (<a href='https://bugzil.la/884935'>bug 884935</a>).",
-                  "From Firefox 32 onwards, when the vibration pattern is too long or any of its elements too large, it returns <code>true</code> but truncates the pattern (<a href='https://bugzil.la/1014581'>bug 1014581</a>).",
+                  "Until Firefox 26 included, when the vibration pattern was too long or any of its elements too large, Firefox threw an exception instead of returning `false` ([bug 884935](https://bugzil.la/884935)).",
+                  "From Firefox 32 onwards, when the vibration pattern is too long or any of its elements too large, it returns `true` but truncates the pattern ([bug 1014581](https://bugzil.la/1014581)).",
                   "Beginning in Firefox 72, this is not supported in cross-origin iframes."
                 ]
               },
@@ -4877,14 +5489,14 @@
               {
                 "version_added": "79",
                 "partial_implementation": true,
-                "notes": "Vibration is disabled. If the window is visible, then <code>navigator.vibrate()</code> returns <code>true</code>, but no vibration takes place (regardless of hardware support). Originally, the intent was to disable it for cross-origin frames only (<a href='https://bugzil.la/1591113'>bug 1591113</a>), but the feature was not re-enabled due to abuse concerns (<a href='https://bugzil.la/1653318'>bug 1653318</a>)."
+                "notes": "Vibration is disabled. If the window is visible, then `navigator.vibrate()` returns `true`, but no vibration takes place (regardless of hardware support). Originally, the intent was to disable it for cross-origin frames only ([bug 1591113](https://bugzil.la/1591113)), but the feature was not re-enabled due to abuse concerns ([bug 1653318](https://bugzil.la/1653318))."
               },
               {
                 "version_added": "16",
                 "version_removed": "79",
                 "notes": [
-                  "Until Firefox 26 included, when the vibration pattern was too long or any of its elements too large, Firefox threw an exception instead of returning <code>false</code> (<a href='https://bugzil.la/884935'>bug 884935</a>).",
-                  "From Firefox 32 onwards, when the vibration pattern is too long or any of its elements too large, it returns <code>true</code> but truncates the pattern (<a href='https://bugzil.la/1014581'>bug 1014581</a>)."
+                  "Until Firefox 26 included, when the vibration pattern was too long or any of its elements too large, Firefox threw an exception instead of returning `false` ([bug 884935](https://bugzil.la/884935)).",
+                  "From Firefox 32 onwards, when the vibration pattern is too long or any of its elements too large, it returns `true` but truncates the pattern ([bug 1014581](https://bugzil.la/1014581))."
                 ]
               },
               {
@@ -4896,13 +5508,16 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": {
               "version_added": "19",
               "notes": [
                 "Beginning in Opera 42, this is not supported in cross-origin iframes.",
-                "Beginning in Opera 47, this method requires a user gesture. Otherwise it returns <code>false</code>."
+                "Beginning in Opera 47, this method requires a user gesture. Otherwise it returns `false`."
               ]
             },
             "safari": {
@@ -4914,9 +5529,10 @@
               "version_added": "4.4.3",
               "notes": [
                 "Beginning in version 55, this is not supported in cross-origin iframes.",
-                "Beginning in version 60, this method requires a user gesture. Otherwise it returns <code>false</code>."
+                "Beginning in version 60, this method requires a user gesture. Otherwise it returns `false`."
               ]
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4929,6 +5545,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/virtualKeyboard",
           "spec_url": "https://w3c.github.io/virtual-keyboard/#dom-navigator-virtualkeyboard",
+          "tags": [
+            "web-features:virtual-keyboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -4936,21 +5555,27 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1730568"
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/230225"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4979,6 +5604,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -4988,10 +5616,11 @@
             "safari_ios": {
               "version_added": "16.4",
               "partial_implementation": true,
-              "notes": "Does not work in standalone Home Screen Web Apps. See <a href='https://webkit.org/b/254545#c32'>bug 254545</a>."
+              "notes": "Does not work in standalone Home Screen Web Apps. See [bug 254545](https://webkit.org/b/254545#c32)."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5004,6 +5633,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/webdriver",
           "spec_url": "https://w3c.github.io/webdriver/#dfn-webdriver",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "63"
@@ -5019,6 +5651,9 @@
             "ie": {
               "version_added": "11"
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -5027,7 +5662,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5040,6 +5676,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/windowControlsOverlay",
           "spec_url": "https://wicg.github.io/window-controls-overlay/#windowcontrolsoverlay-interface",
+          "tags": [
+            "web-features:window-controls-overlay"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -5055,15 +5694,20 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/257782"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5076,6 +5720,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/xr",
           "spec_url": "https://immersive-web.github.io/webxr/#navigator-xr-attribute",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -5089,6 +5736,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": false
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -5100,8 +5750,10 @@
               "version_added": "11.2"
             },
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40652382"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NavigatorLogin.json b/api/NavigatorLogin.json
index f8726d04e2c291..6d847a61f5c6c4 100644
--- a/api/NavigatorLogin.json
+++ b/api/NavigatorLogin.json
@@ -3,7 +3,7 @@
     "NavigatorLogin": {
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigatorLogin",
-        "spec_url": "https://fedidcg.github.io/FedCM/#navigatorlogin",
+        "spec_url": "https://w3c-fedid.github.io/FedCM/#navigatorlogin",
         "support": {
           "chrome": {
             "version_added": "120"
@@ -27,7 +27,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,7 +39,7 @@
       "setStatus": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigatorLogin/setStatus",
-          "spec_url": "https://fedidcg.github.io/FedCM/#dom-navigatorlogin-setstatus",
+          "spec_url": "https://w3c-fedid.github.io/FedCM/#dom-navigatorlogin-setstatus",
           "support": {
             "chrome": {
               "version_added": "120"
@@ -62,7 +63,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NavigatorManagedData.json b/api/NavigatorManagedData.json
index e80c72128eaf92..ed7079f20d1b0e 100644
--- a/api/NavigatorManagedData.json
+++ b/api/NavigatorManagedData.json
@@ -24,7 +24,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -56,7 +57,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -67,7 +69,7 @@
       },
       "managedconfigurationchange_event": {
         "__compat": {
-          "description": "<code>managedconfigurationchange</code> event",
+          "description": "`managedconfigurationchange` event",
           "spec_url": "https://wicg.github.io/WebApiDevice/managed_config/#onmanagedconfigurationchange-attribute",
           "support": {
             "chrome": {
@@ -90,7 +92,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NavigatorUAData.json b/api/NavigatorUAData.json
index 6930a02401f3a0..50b0a66db35375 100644
--- a/api/NavigatorUAData.json
+++ b/api/NavigatorUAData.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigatorUAData",
         "spec_url": "https://wicg.github.io/ua-client-hints/#navigatoruadata",
+        "tags": [
+          "web-features:ua-client-hints"
+        ],
         "support": {
           "chrome": {
             "version_added": "90"
@@ -29,8 +32,9 @@
           },
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/921655"
-          }
+            "impl_url": "https://crbug.com/40609350"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -42,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigatorUAData/brands",
           "spec_url": "https://wicg.github.io/ua-client-hints/#dom-navigatoruadata-brands",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -67,7 +74,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -80,6 +88,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigatorUAData/getHighEntropyValues",
           "spec_url": "https://wicg.github.io/ua-client-hints/#dom-navigatoruadata-gethighentropyvalues",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -105,7 +116,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -118,6 +130,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigatorUAData/mobile",
           "spec_url": "https://wicg.github.io/ua-client-hints/#dom-navigatoruadata-mobile",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -143,7 +158,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -156,6 +172,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigatorUAData/platform",
           "spec_url": "https://wicg.github.io/ua-client-hints/#dom-navigatoruadata-platform",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "93"
@@ -181,7 +200,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -194,6 +214,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigatorUAData/toJSON",
           "spec_url": "https://wicg.github.io/ua-client-hints/#dom-navigatoruadata-tojson",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "93"
@@ -219,7 +242,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NetworkInformation.json b/api/NetworkInformation.json
index 60a1393ce5c308..f877c62b41ebdc 100644
--- a/api/NetworkInformation.json
+++ b/api/NetworkInformation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/NetworkInformation",
         "spec_url": "https://wicg.github.io/netinfo/#networkinformation-interface",
+        "tags": [
+          "web-features:network-information"
+        ],
         "support": {
           "chrome": {
             "version_added": "61"
@@ -34,7 +37,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "50"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -76,7 +83,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "50"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,9 +95,12 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NetworkInformation/change_event",
           "spec_url": "https://wicg.github.io/netinfo/#dom-networkinformation-onchange",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -103,7 +114,7 @@
             },
             "firefox_android": {
               "version_added": false,
-              "notes": "On Firefox, the event handler property corresponding to the <code>change</code> event is <code>ontypechange</code>."
+              "notes": "On Firefox, the event handler property corresponding to the `change` event is `ontypechange`."
             },
             "ie": {
               "version_added": false
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "50"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -133,6 +145,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NetworkInformation/downlink",
           "spec_url": "https://wicg.github.io/netinfo/#dom-networkinformation-downlink",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "61",
@@ -161,7 +176,8 @@
             "webview_android": {
               "version_added": "50",
               "notes": "The value is never greater than 10 Mbps, as a non-standard anti-fingerprinting measure."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,6 +190,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NetworkInformation/downlinkMax",
           "spec_url": "https://wicg.github.io/netinfo/#dom-networkinformation-downlinkmax",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "61",
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "50"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -219,6 +239,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NetworkInformation/effectiveType",
           "spec_url": "https://wicg.github.io/netinfo/#dom-networkinformation-effectivetype",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -246,7 +269,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "50"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -259,6 +283,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NetworkInformation/rtt",
           "spec_url": "https://wicg.github.io/netinfo/#dom-networkinformation-rtt",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "61",
@@ -287,7 +314,8 @@
             "webview_android": {
               "version_added": "50",
               "notes": "The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -300,6 +328,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NetworkInformation/saveData",
           "spec_url": "https://wicg.github.io/savedata/#dfn-savedata",
+          "tags": [
+            "web-features:savedata"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -321,7 +352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -334,6 +366,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NetworkInformation/type",
           "spec_url": "https://wicg.github.io/netinfo/#dom-networkinformation-type",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "61",
@@ -370,7 +405,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "50"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -381,14 +417,14 @@
       },
       "typechange_event": {
         "__compat": {
-          "description": "<code>typechange</code> event",
+          "description": "`typechange` event",
           "support": {
             "chrome": {
               "version_added": false
             },
             "chrome_android": {
               "version_added": "38",
-              "notes": "Removal proposed in <a href='https://crbug.com/699892'>bug 699892</a>."
+              "notes": "Removal proposed in [bug 40509974](https://crbug.com/40509974)."
             },
             "edge": "mirror",
             "firefox": {
@@ -412,7 +448,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "50"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Node.json b/api/Node.json
index b63bac612ed841..061baae0d3342e 100644
--- a/api/Node.json
+++ b/api/Node.json
@@ -4,10 +4,13 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node",
         "spec_url": "https://dom.spec.whatwg.org/#interface-node",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1",
-            "notes": "WebKit and old versions of Blink incorrectly do not make <code>Node</code> inherit from <code>EventTarget</code>."
+            "notes": "WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`."
           },
           "chrome_android": "mirror",
           "edge": {
@@ -23,21 +26,22 @@
           "oculus": "mirror",
           "opera": {
             "version_added": "7",
-            "notes": "WebKit and old versions of Blink incorrectly do not make <code>Node</code> inherit from <code>EventTarget</code>."
+            "notes": "WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`."
           },
           "opera_android": {
             "version_added": "10.1",
-            "notes": "WebKit and old versions of Blink incorrectly do not make <code>Node</code> inherit from <code>EventTarget</code>."
+            "notes": "WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`."
           },
           "safari": {
             "version_added": "1",
-            "notes": "WebKit and old versions of Blink incorrectly do not make <code>Node</code> inherit from <code>EventTarget</code>."
+            "notes": "WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`."
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,6 +53,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/appendChild",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-appendchild",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -76,7 +83,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/baseURI",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-baseuri①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -118,7 +129,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,6 +143,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/childNodes",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-childnodes①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -158,7 +173,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +187,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/cloneNode",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-clonenode①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -198,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -211,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/compareDocumentPosition",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-comparedocumentposition①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -225,7 +248,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "Only supports <code>contains</code> for elements"
+              "notes": "Only supports `contains` for elements"
             },
             "oculus": "mirror",
             "opera": {
@@ -241,7 +264,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,6 +278,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/contains",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-contains①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -269,7 +296,7 @@
             "ie": {
               "version_added": "9",
               "partial_implementation": true,
-              "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/HTMLElement'><code>HTMLElement</code></a>, not all <code>Node</code> objects."
+              "notes": "Only supported for [`HTMLElement`](https://developer.mozilla.org/docs/Web/API/HTMLElement), not all `Node` objects."
             },
             "oculus": "mirror",
             "opera": {
@@ -283,7 +310,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -296,6 +324,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/firstChild",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-firstchild①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -323,7 +354,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,7 +392,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -373,6 +406,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/hasChildNodes",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-haschildnodes①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -400,7 +436,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -413,6 +450,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/insertBefore",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-insertbefore",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -440,7 +480,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -479,7 +520,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -492,6 +534,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/isDefaultNamespace",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-isdefaultnamespace",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -521,7 +566,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -534,6 +580,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/isEqualNode",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-isequalnode①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -563,7 +612,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -576,6 +626,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/isSameNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-issamenode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -611,7 +664,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -624,6 +678,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/lastChild",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-lastchild①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -653,7 +710,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -666,6 +724,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/lookupNamespaceURI",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-lookupnamespaceuri",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -695,7 +756,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -708,6 +770,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/lookupPrefix",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-lookupprefix",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -737,7 +802,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -750,6 +816,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/nextSibling",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-nextsibling①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -777,7 +846,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -790,6 +860,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/nodeName",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-nodename①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -817,7 +890,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -830,6 +904,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/nodeType",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-nodetype①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -857,7 +934,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -870,6 +948,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/nodeValue",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-nodevalue",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -897,7 +978,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -910,6 +992,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/normalize",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-normalize①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -937,7 +1022,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -950,6 +1036,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/ownerDocument",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-ownerdocument①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -965,7 +1054,7 @@
               {
                 "version_added": "1",
                 "version_removed": "9",
-                "notes": "The <code>ownerDocument</code> of doctype nodes (that is, nodes for which <code>Node.nodeType</code> is <code>Node.DOCUMENT_TYPE_NODE</code> or 10) is <code>null</code>."
+                "notes": "The `ownerDocument` of doctype nodes (that is, nodes for which `Node.nodeType` is `Node.DOCUMENT_TYPE_NODE` or 10) is `null`."
               }
             ],
             "firefox_android": "mirror",
@@ -984,7 +1073,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -997,6 +1087,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/parentElement",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-parentelement①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1011,23 +1104,24 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "8",
-              "notes": "Only supported on <code>Element</code>."
+              "notes": "Only supported on `Element`."
             },
             "oculus": "mirror",
             "opera": {
               "version_added": "7",
-              "notes": "Before Opera 15, this feature was only supported on <code>Element</code>."
+              "notes": "Before Opera 15, this feature was only supported on `Element`."
             },
             "opera_android": {
               "version_added": "10.1",
-              "notes": "Before Opera Android 14, this feature was only supported on <code>Element</code>."
+              "notes": "Before Opera Android 14, this feature was only supported on `Element`."
             },
             "safari": {
               "version_added": "1.1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1040,6 +1134,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/parentNode",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-parentnode①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1067,7 +1164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1080,6 +1178,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/previousSibling",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-node-previoussibling①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1107,7 +1208,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1120,6 +1222,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/removeChild",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-removechild",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1147,7 +1252,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1160,6 +1266,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/replaceChild",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-replacechild",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1187,7 +1296,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1198,12 +1308,15 @@
       },
       "selectstart_event": {
         "__compat": {
-          "description": "<code>selectstart</code> event",
+          "description": "`selectstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/selectstart_event",
           "spec_url": [
             "https://w3c.github.io/selection-api/#selectstart-event",
             "https://w3c.github.io/selection-api/#dom-globaleventhandlers-onselectstart"
           ],
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1229,7 +1342,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1242,6 +1356,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Node/textContent",
           "spec_url": "https://dom.spec.whatwg.org/#dom-node-textcontent",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1271,7 +1388,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/NodeIterator.json b/api/NodeIterator.json
index 18631fec59b8cc..9633bea2aa0d46 100644
--- a/api/NodeIterator.json
+++ b/api/NodeIterator.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeIterator",
         "spec_url": "https://dom.spec.whatwg.org/#interface-nodeiterator",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
             "version_added": "3"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -75,7 +79,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,6 +93,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeIterator/filter",
           "spec_url": "https://dom.spec.whatwg.org/#dom-nodeiterator-filter",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -117,7 +125,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,6 +139,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeIterator/nextNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-nodeiterator-nextnode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -159,7 +171,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -172,6 +185,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeIterator/pointerBeforeReferenceNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-nodeiterator-pointerbeforereferencenode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -201,7 +217,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeIterator/previousNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-nodeiterator-previousnode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -243,7 +263,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -256,6 +277,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeIterator/referenceNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-nodeiterator-referencenode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -285,7 +309,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -298,6 +323,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeIterator/root",
           "spec_url": "https://dom.spec.whatwg.org/#dom-nodeiterator-root",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -327,7 +355,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -340,6 +369,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeIterator/whatToShow",
           "spec_url": "https://dom.spec.whatwg.org/#dom-nodeiterator-whattoshow",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -369,7 +401,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/NodeList.json b/api/NodeList.json
index ac40b84c6b21bb..ea6e51118eb4d3 100644
--- a/api/NodeList.json
+++ b/api/NodeList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeList",
         "spec_url": "https://dom.spec.whatwg.org/#interface-nodelist",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "entries": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeList/entries",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -65,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,6 +86,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeList/forEach",
           "spec_url": "https://dom.spec.whatwg.org/#interface-nodelist",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -101,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -114,6 +126,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeList/item",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-nodelist-item①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -141,7 +156,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -153,6 +169,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeList/keys",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -176,7 +195,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -189,6 +209,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeList/length",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-nodelist-length①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -216,7 +239,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -228,6 +252,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NodeList/values",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -251,7 +278,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -264,6 +292,9 @@
         "__compat": {
           "description": "[Symbol.iterator]",
           "spec_url": "https://dom.spec.whatwg.org/#interface-nodelist",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -285,7 +316,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/NotRestoredReasonDetails.json b/api/NotRestoredReasonDetails.json
index 113c262947eefd..e6e86f6eecb205 100644
--- a/api/NotRestoredReasonDetails.json
+++ b/api/NotRestoredReasonDetails.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotRestoredReasonDetails",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#notrestoredreasondetails",
+        "tags": [
+          "web-features:bfcache-blocking-reasons"
+        ],
         "support": {
           "chrome": {
             "version_added": "125"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotRestoredReasonDetails/reason",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-not-restored-reason-details-reason",
+          "tags": [
+            "web-features:bfcache-blocking-reasons"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -91,7 +99,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NotRestoredReasons.json b/api/NotRestoredReasons.json
index 2e61141f043eef..cd453dccd2dc1b 100644
--- a/api/NotRestoredReasons.json
+++ b/api/NotRestoredReasons.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotRestoredReasons",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#notrestoredreasons",
+        "tags": [
+          "web-features:bfcache-blocking-reasons"
+        ],
         "support": {
           "chrome": {
             "version_added": "125"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotRestoredReasons/children",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-not-restored-reasons-children",
+          "tags": [
+            "web-features:bfcache-blocking-reasons"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotRestoredReasons/id",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-not-restored-reasons-id",
+          "tags": [
+            "web-features:bfcache-blocking-reasons"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotRestoredReasons/name",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-not-restored-reasons-name",
+          "tags": [
+            "web-features:bfcache-blocking-reasons"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotRestoredReasons/reasons",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-not-restored-reasons-reasons",
+          "tags": [
+            "web-features:bfcache-blocking-reasons"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -160,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -173,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotRestoredReasons/src",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-not-restored-reasons-src",
+          "tags": [
+            "web-features:bfcache-blocking-reasons"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -194,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -227,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -240,6 +265,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotRestoredReasons/url",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-not-restored-reasons-url",
+          "tags": [
+            "web-features:bfcache-blocking-reasons"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -261,7 +289,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Notification.json b/api/Notification.json
index d2c50ae4ce40c2..8f9ab83b68722c 100644
--- a/api/Notification.json
+++ b/api/Notification.json
@@ -15,10 +15,7 @@
           "chrome_android": {
             "version_added": "42",
             "partial_implementation": true,
-            "notes": [
-              "Notifications in Chrome for Android are only available through service workers. To show notifications on Android, see <a href='https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification'><code>ServiceWorkerRegistration.showNotification()</code></a>.",
-              "Starting in Chrome 49, notifications do not work in incognito mode."
-            ]
+            "notes": "A notification can only be sent from a service worker. To show a notification, see <a href='https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification'><code>ServiceWorkerRegistration.showNotification()</code></a>."
           },
           "edge": {
             "version_added": "14"
@@ -48,7 +45,7 @@
             "version_added": "29",
             "partial_implementation": true,
             "notes": [
-              "Notifications in Opera for Android are only available through service workers. To show notifications on Android, see <a href='https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification'><code>ServiceWorkerRegistration.showNotification()</code></a>.",
+              "Notifications in Opera for Android are only available through service workers. To show notifications on Android, see [`ServiceWorkerRegistration.showNotification()`](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification).",
               "Starting in Opera for Android 36, notifications do not work in incognito mode."
             ]
           },
@@ -57,19 +54,26 @@
           },
           "safari_ios": {
             "version_added": "16.4",
-            "notes": "Notifications are supported in web apps saved to the home screen."
+            "partial_implementation": true,
+            "notes": [
+              "The <code>Notification</code> interface is undefined, unless the page is a web app saved to the home screen. The app's manifest must have a non-default <code>display</code> value.",
+              "A notification can only be sent from a service worker. To show a notification, see <a href='https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification'><code>ServiceWorkerRegistration.showNotification()</code></a>."
+            ]
           },
           "samsunginternet_android": {
             "version_added": "4.0",
             "partial_implementation": true,
             "notes": [
-              "Notifications in Samsung Internet are only available through service workers. To show notifications on Android, see <a href='https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification'><code>ServiceWorkerRegistration.showNotification()</code></a>.",
+              "Notifications in Samsung Internet are only available through service workers. To show notifications on Android, see [`ServiceWorkerRegistration.showNotification()`](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification).",
               "Starting in Samsung Internet 5.0, notifications do not work in incognito mode."
             ]
           },
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/551446"
+            "impl_url": "https://crbug.com/40443309"
+          },
+          "webview_ios": {
+            "version_added": false
           }
         },
         "status": {
@@ -80,7 +84,7 @@
       },
       "Notification": {
         "__compat": {
-          "description": "<code>Notification()</code> constructor",
+          "description": "`Notification()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Notification/Notification",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-notification-notification",
           "support": {
@@ -88,7 +92,12 @@
               "version_added": "20"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "42",
+              "partial_implementation": true,
+              "notes": [
+                "A notification can only be sent from a service worker. To show a notification, see <a href='https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification'><code>ServiceWorkerRegistration.showNotification()</code></a>.",
+                "This constructor always throws a <code>TypeError</code> exception."
+              ]
             },
             "edge": {
               "version_added": "14"
@@ -116,10 +125,20 @@
             },
             "safari_ios": {
               "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "partial_implementation": true,
+              "notes": [
+                "This constructor throws a <code>ReferenceError</code> exception, unless the page is a web app saved to the home screen. The app's manifest must have a non-default <code>display</code> value.",
+                "A notification can only be sent from a service worker. To show a notification, see <a href='https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification'><code>ServiceWorkerRegistration.showNotification()</code></a>."
+              ]
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -153,8 +172,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,8 +211,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -230,8 +253,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -268,12 +293,13 @@
               "version_added": "17",
               "notes": "Badging is supported for web apps saved to the Dock in Safari 17 on the macOS Sonoma beta"
             },
-            "safari_ios": {
-              "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
-            },
+            "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -314,11 +340,14 @@
               "version_added": "11"
             },
             "safari_ios": {
-              "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "version_added": "16.4"
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -331,7 +360,7 @@
       },
       "click_event": {
         "__compat": {
-          "description": "<code>click</code> event",
+          "description": "`click` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Notification/click_event",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-notification-onclick",
           "support": {
@@ -360,10 +389,14 @@
               "version_added": "7"
             },
             "safari_ios": {
-              "version_added": false
+              "version_added": "16.4"
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -404,11 +437,14 @@
               "version_added": "7"
             },
             "safari_ios": {
-              "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "version_added": "16.4"
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -421,7 +457,7 @@
       },
       "close_event": {
         "__compat": {
-          "description": "<code>close</code> event",
+          "description": "`close` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Notification/close_event",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-notification-onclose",
           "support": {
@@ -450,10 +486,14 @@
               "version_added": "7"
             },
             "safari_ios": {
-              "version_added": false
+              "version_added": "16.4"
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -490,11 +530,14 @@
               "version_added": "16"
             },
             "safari_ios": {
-              "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "version_added": "16.4"
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -535,11 +578,14 @@
               "version_added": "7"
             },
             "safari_ios": {
-              "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "version_added": "16.4"
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -552,7 +598,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Notification/error_event",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-notification-onerror",
           "support": {
@@ -581,10 +627,14 @@
               "version_added": "7"
             },
             "safari_ios": {
-              "version_added": false
+              "version_added": "16.4"
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -622,14 +672,17 @@
             },
             "opera_android": "mirror",
             "safari": {
-              "version_added": "11"
-            },
-            "safari_ios": {
-              "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/280162",
+              "notes": "The property can be set, but has no effect."
             },
+            "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -668,8 +721,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -708,13 +763,14 @@
               "version_added": "11"
             },
             "safari_ios": {
-              "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "version_added": false
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -725,7 +781,7 @@
       },
       "maxActions_static": {
         "__compat": {
-          "description": "<code>maxActions</code> static property",
+          "description": "`maxActions` static property",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Notification/maxActions_static",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-notification-maxactions",
           "support": {
@@ -752,8 +808,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -764,7 +822,7 @@
       },
       "permission_static": {
         "__compat": {
-          "description": "<code>permission</code> static property",
+          "description": "`permission` static property",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Notification/permission_static",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-notification-permission",
           "support": {
@@ -794,10 +852,15 @@
             },
             "safari_ios": {
               "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "partial_implementation": true,
+              "notes": "The parent <code>Notification</code> interface is undefined unless the page is a web app saved to the home screen. The app's manifest must have a non-default <code>display</code> value."
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -834,8 +897,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -846,7 +911,7 @@
       },
       "requestPermission_static": {
         "__compat": {
-          "description": "<code>requestPermission()</code> static method",
+          "description": "`requestPermission()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Notification/requestPermission_static",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-notification-requestpermission",
           "support": {
@@ -862,15 +927,15 @@
             "firefox": {
               "version_added": "22",
               "notes": [
-                "From Firefox 70 onwards, cannot be called from a cross-origin <code>iframe</code>.",
-                "From Firefox 72 onwards, can only be called in response to a user gesture such as a <code>click</code> event."
+                "From Firefox 70 onwards, cannot be called from a cross-origin `iframe`.",
+                "From Firefox 72 onwards, can only be called in response to a user gesture such as a `click` event."
               ]
             },
             "firefox_android": {
               "version_added": "22",
               "notes": [
-                "From Firefox Android 79 onwards, cannot be called from a cross-origin <code>iframe</code>.",
-                "From Firefox Android 79 onwards, can only be called in response to a user gesture such as a <code>click</code> event."
+                "From Firefox Android 79 onwards, cannot be called from a cross-origin `iframe`.",
+                "From Firefox Android 79 onwards, can only be called in response to a user gesture such as a `click` event."
               ]
             },
             "ie": {
@@ -894,10 +959,15 @@
             ],
             "safari_ios": {
               "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "partial_implementation": true,
+              "notes": "The parent <code>Notification</code> interface is undefined unless the page is a web app saved to the home screen. The app's manifest must have a non-default <code>display</code> value."
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -906,6 +976,47 @@
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "returns_promise": {
+          "__compat": {
+            "description": "Returns a `Promise`",
+            "support": {
+              "chrome": {
+                "version_added": "47"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "46"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "15"
+              },
+              "safari_ios": {
+                "version_added": "16.4"
+              },
+              "samsunginternet_android": "mirror",
+              "webview_android": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/40443309"
+              },
+              "webview_ios": {
+                "version_added": false
+              }
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "requireInteraction": {
@@ -950,8 +1061,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -962,7 +1075,7 @@
       },
       "show_event": {
         "__compat": {
-          "description": "<code>show</code> event",
+          "description": "`show` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Notification/show_event",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-notification-onshow",
           "support": {
@@ -995,8 +1108,10 @@
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1018,7 +1133,7 @@
               "version_added": "17"
             },
             "firefox": {
-              "version_added": false
+              "version_added": "132"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1030,11 +1145,15 @@
             "safari": {
               "version_added": "16.6"
             },
-            "safari_ios": "mirror",
+            "safari_ios": {
+              "version_added": false
+            },
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1070,16 +1189,19 @@
             },
             "opera_android": "mirror",
             "safari": {
-              "version_added": "7"
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/258922",
+              "notes": "The property can be set, but has no effect."
             },
             "safari_ios": {
-              "version_added": false,
-              "notes": "This property is exposed but is not implemented. See <a href='https://webkit.org/b/258922'>bug 258922</a>."
+              "version_added": false
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1116,8 +1238,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1156,13 +1280,14 @@
               "version_added": "11"
             },
             "safari_ios": {
-              "version_added": "16.4",
-              "notes": "Notifications are supported in web apps saved to the home screen."
+              "version_added": false
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1179,10 +1304,7 @@
             "chrome": {
               "version_added": "53"
             },
-            "chrome_android": {
-              "version_added": "53",
-              "notes": "Does not work on Android O or later regardless of Chrome version, see <a href='https://crbug.com/971422'>bug 971422</a>."
-            },
+            "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
               "version_added": false
@@ -1200,8 +1322,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/NotificationEvent.json b/api/NotificationEvent.json
index f45d2aad1c38f5..95762f232ce81f 100644
--- a/api/NotificationEvent.json
+++ b/api/NotificationEvent.json
@@ -37,7 +37,11 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/551446"
+            "impl_url": "https://crbug.com/40443309"
+          },
+          "webview_ios": {
+            "version_added": false,
+            "notes": "Notifications are supported in web apps saved to the home screen."
           }
         },
         "status": {
@@ -48,7 +52,7 @@
       },
       "NotificationEvent": {
         "__compat": {
-          "description": "<code>NotificationEvent()</code> constructor",
+          "description": "`NotificationEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/NotificationEvent/NotificationEvent",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-notificationevent-notificationevent",
           "support": {
@@ -84,6 +88,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -126,7 +134,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,7 +177,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OES_draw_buffers_indexed.json b/api/OES_draw_buffers_indexed.json
index 8ab9da994a6a9e..551eec1fb65faa 100644
--- a/api/OES_draw_buffers_indexed.json
+++ b/api/OES_draw_buffers_indexed.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OES_element_index_uint.json b/api/OES_element_index_uint.json
index cd599c2b07ebc3..6fbfe135b39305 100644
--- a/api/OES_element_index_uint.json
+++ b/api/OES_element_index_uint.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_element_index_uint",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OES_element_index_uint/",
+        "tags": [
+          "web-features:oes-element-index-uint"
+        ],
         "support": {
           "chrome": {
             "version_added": "24"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/OES_fbo_render_mipmap.json b/api/OES_fbo_render_mipmap.json
index 8fbfc1acf0a05a..c4ea920e04205f 100644
--- a/api/OES_fbo_render_mipmap.json
+++ b/api/OES_fbo_render_mipmap.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_fbo_render_mipmap",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OES_fbo_render_mipmap/",
+        "tags": [
+          "web-features:oes-fbo-render-mipmap"
+        ],
         "support": {
           "chrome": {
             "version_added": "80"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/OES_standard_derivatives.json b/api/OES_standard_derivatives.json
index 38fe454c55e43c..0f3ca216a06e57 100644
--- a/api/OES_standard_derivatives.json
+++ b/api/OES_standard_derivatives.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_standard_derivatives",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OES_standard_derivatives/",
+        "tags": [
+          "web-features:oes-standard-derivatives"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -29,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/OES_texture_float.json b/api/OES_texture_float.json
index 07ad873562f26e..25c370a24c628b 100644
--- a/api/OES_texture_float.json
+++ b/api/OES_texture_float.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_texture_float",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OES_texture_float/",
+        "tags": [
+          "web-features:oes-texture-float"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -29,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/OES_texture_float_linear.json b/api/OES_texture_float_linear.json
index d96f4d9d1a2482..f52e73da3fbaa9 100644
--- a/api/OES_texture_float_linear.json
+++ b/api/OES_texture_float_linear.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_texture_float_linear",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OES_texture_float_linear/",
+        "tags": [
+          "web-features:oes-texture-float-linear"
+        ],
         "support": {
           "chrome": {
             "version_added": "29"
@@ -30,7 +33,11 @@
             "notes": "Only supported on iPadOS."
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false,
+            "notes": "Only supported on iPadOS."
+          }
         },
         "status": {
           "experimental": false,
diff --git a/api/OES_texture_half_float.json b/api/OES_texture_half_float.json
index 1b1aff3902946d..cdbce48216ce48 100644
--- a/api/OES_texture_half_float.json
+++ b/api/OES_texture_half_float.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_texture_half_float",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OES_texture_half_float/",
+        "tags": [
+          "web-features:oes-texture-half-float"
+        ],
         "support": {
           "chrome": {
             "version_added": "27"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/OES_texture_half_float_linear.json b/api/OES_texture_half_float_linear.json
index 734d24d6d668c6..fbc1cda3a62da3 100644
--- a/api/OES_texture_half_float_linear.json
+++ b/api/OES_texture_half_float_linear.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_texture_half_float_linear",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OES_texture_half_float_linear/",
+        "tags": [
+          "web-features:oes-texture-half-float-linear"
+        ],
         "support": {
           "chrome": {
             "version_added": "29"
@@ -31,7 +34,8 @@
           "samsunginternet_android": {
             "version_added": "1.5"
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/OES_vertex_array_object.json b/api/OES_vertex_array_object.json
index 9e3aab7e9f4213..ac09e55d862b98 100644
--- a/api/OES_vertex_array_object.json
+++ b/api/OES_vertex_array_object.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OES_vertex_array_object/",
+        "tags": [
+          "web-features:oes-vertex-array-object"
+        ],
         "support": {
           "chrome": {
             "version_added": "24"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/bindVertexArrayOES",
           "spec_url": "https://registry.khronos.org/webgl/extensions/OES_vertex_array_object/",
+          "tags": [
+            "web-features:oes-vertex-array-object"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/createVertexArrayOES",
           "spec_url": "https://registry.khronos.org/webgl/extensions/OES_vertex_array_object/",
+          "tags": [
+            "web-features:oes-vertex-array-object"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/deleteVertexArrayOES",
           "spec_url": "https://registry.khronos.org/webgl/extensions/OES_vertex_array_object/",
+          "tags": [
+            "web-features:oes-vertex-array-object"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/isVertexArrayOES",
           "spec_url": "https://registry.khronos.org/webgl/extensions/OES_vertex_array_object/",
+          "tags": [
+            "web-features:oes-vertex-array-object"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -170,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OTPCredential.json b/api/OTPCredential.json
index 79346aaf533bf6..238fa687e1dba5 100644
--- a/api/OTPCredential.json
+++ b/api/OTPCredential.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OTPCredential",
         "spec_url": "https://wicg.github.io/web-otp/#OTPCredential",
+        "tags": [
+          "web-features:web-otp"
+        ],
         "support": {
           "chrome": {
             "version_added": "93"
@@ -29,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,6 +45,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OTPCredential/code",
           "spec_url": "https://wicg.github.io/web-otp/#dom-otpcredential-code",
+          "tags": [
+            "web-features:web-otp"
+          ],
           "support": {
             "chrome": {
               "version_added": "93"
@@ -66,7 +73,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/OVR_multiview2.json b/api/OVR_multiview2.json
index 234dd68346c766..272fd398f2b419 100644
--- a/api/OVR_multiview2.json
+++ b/api/OVR_multiview2.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/OVR_multiview2",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OVR_multiview2/",
+        "tags": [
+          "web-features:ovr-multiview2"
+        ],
         "support": {
           "chrome": {
             "version_added": "93",
@@ -33,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OVR_multiview2/framebufferTextureMultiviewOVR",
           "spec_url": "https://registry.khronos.org/webgl/extensions/OVR_multiview2/",
+          "tags": [
+            "web-features:ovr-multiview2"
+          ],
           "support": {
             "chrome": {
               "version_added": "93"
@@ -68,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OfflineAudioCompletionEvent.json b/api/OfflineAudioCompletionEvent.json
index 67a3fec98b7ff7..49fd76862cdae8 100644
--- a/api/OfflineAudioCompletionEvent.json
+++ b/api/OfflineAudioCompletionEvent.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "OfflineAudioCompletionEvent": {
         "__compat": {
-          "description": "<code>OfflineAudioCompletionEvent()</code> constructor",
+          "description": "`OfflineAudioCompletionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OfflineAudioCompletionEvent/OfflineAudioCompletionEvent",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-offlineaudiocompletionevent-offlineaudiocompletionevent",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OfflineAudioContext.json b/api/OfflineAudioContext.json
index 4f0f3b032205b8..2a282265e2fb02 100644
--- a/api/OfflineAudioContext.json
+++ b/api/OfflineAudioContext.json
@@ -44,7 +44,8 @@
           ],
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,7 +55,7 @@
       },
       "OfflineAudioContext": {
         "__compat": {
-          "description": "<code>OfflineAudioContext()</code> constructor",
+          "description": "`OfflineAudioContext()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OfflineAudioContext/OfflineAudioContext",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-offlineaudiocontext-offlineaudiocontext",
           "tags": [
@@ -97,7 +98,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,7 +109,10 @@
         },
         "options_parameter": {
           "__compat": {
-            "description": "<code>options</code> parameter (accepts all parameters as a single dictionary)",
+            "description": "`options` parameter (accepts all parameters as a single dictionary)",
+            "tags": [
+              "web-features:offline-audio-context"
+            ],
             "support": {
               "chrome": {
                 "version_added": "62"
@@ -131,7 +136,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -143,7 +149,7 @@
       },
       "complete_event": {
         "__compat": {
-          "description": "<code>complete</code> event",
+          "description": "`complete` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OfflineAudioContext/complete_event",
           "spec_url": [
             "https://webaudio.github.io/web-audio-api/#OfflineAudioCompletionEvent",
@@ -175,7 +181,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,7 +221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,7 +249,7 @@
             "firefox": {
               "version_added": "40",
               "partial_implementation": true,
-              "notes": "The method exists but always rejects with <code>NotSupportedError</code>. See <a href='https://bugzil.la/1265406'>bug 1265406</a>."
+              "notes": "The method exists but always rejects with `NotSupportedError`. See [bug 1265406](https://bugzil.la/1265406)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -255,7 +263,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -294,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -304,7 +314,10 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
+            "tags": [
+              "web-features:offline-audio-context"
+            ],
             "support": {
               "chrome": {
                 "version_added": "42"
@@ -328,7 +341,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -369,7 +383,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OffscreenCanvas.json b/api/OffscreenCanvas.json
index 38cec1f22067f5..df2e3d524eb9ce 100644
--- a/api/OffscreenCanvas.json
+++ b/api/OffscreenCanvas.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "OffscreenCanvas": {
         "__compat": {
-          "description": "<code>OffscreenCanvas()</code> constructor",
+          "description": "`OffscreenCanvas()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OffscreenCanvas/OffscreenCanvas",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-offscreencanvas-dev",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -76,7 +78,7 @@
       },
       "contextlost_event": {
         "__compat": {
-          "description": "<code>contextlost</code> event",
+          "description": "`contextlost` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OffscreenCanvas/contextlost_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-contextlost",
@@ -106,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,7 +120,7 @@
       },
       "contextrestored_event": {
         "__compat": {
-          "description": "<code>contextrestored</code> event",
+          "description": "`contextrestored` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OffscreenCanvas/contextrestored_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-contextrestored",
@@ -147,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,7 +194,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,7 +205,7 @@
         },
         "option_type_parameter_webp": {
           "__compat": {
-            "description": "<code>option.type</code> parameter supports <code>\"image/webp\"</code>",
+            "description": "`option.type` parameter supports `\"image/webp\"`",
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -224,7 +229,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -262,7 +268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -272,7 +279,7 @@
         },
         "bitmaprenderer_context": {
           "__compat": {
-            "description": "<code>bitmaprenderer</code> context",
+            "description": "`bitmaprenderer` context",
             "tags": [
               "web-features:offscreen-canvas"
             ],
@@ -299,7 +306,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -310,7 +318,7 @@
         },
         "webgl_context": {
           "__compat": {
-            "description": "<code>webgl</code> context",
+            "description": "`webgl` context",
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -334,7 +342,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -345,7 +354,7 @@
         },
         "webgl2_context": {
           "__compat": {
-            "description": "<code>webgl2</code> context",
+            "description": "`webgl2` context",
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -369,7 +378,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -380,7 +390,7 @@
         },
         "webgpu_context": {
           "__compat": {
-            "description": "<code>webgpu</code> context",
+            "description": "`webgpu` context",
             "spec_url": "https://gpuweb.github.io/gpuweb/#canvas-getcontext",
             "tags": [
               "web-features:webgpu"
@@ -395,7 +405,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": "preview",
+                "version_added": "105",
                 "partial_implementation": true,
                 "notes": "Currently supported on Linux and Windows only."
               },
@@ -413,10 +423,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -424,7 +435,7 @@
         },
         "2d_context": {
           "__compat": {
-            "description": "<code>2d</code> context",
+            "description": "`2d` context",
             "tags": [
               "web-features:offscreen-canvas"
             ],
@@ -451,7 +462,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -489,7 +501,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -526,7 +539,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -563,7 +577,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OffscreenCanvasRenderingContext2D.json b/api/OffscreenCanvasRenderingContext2D.json
index 50cb242b6fcc2f..a6bb99ea49754f 100644
--- a/api/OffscreenCanvasRenderingContext2D.json
+++ b/api/OffscreenCanvasRenderingContext2D.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -323,7 +331,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -361,7 +370,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -398,7 +408,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -435,7 +446,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -472,7 +484,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -509,7 +522,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -546,7 +560,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -583,7 +598,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -620,7 +636,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -657,7 +674,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -694,7 +712,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -731,7 +750,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -768,7 +788,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -805,7 +826,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -839,7 +861,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -876,7 +899,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -910,7 +934,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -944,7 +969,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -978,7 +1004,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1015,7 +1042,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1052,7 +1080,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1089,7 +1118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1126,7 +1156,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1163,7 +1194,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1200,7 +1232,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1234,7 +1267,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1271,7 +1305,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1308,7 +1343,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1345,7 +1381,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1379,7 +1416,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1416,7 +1454,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1453,7 +1492,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1490,7 +1530,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1527,7 +1568,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1564,7 +1606,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1601,7 +1644,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1638,7 +1682,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1675,7 +1720,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1712,7 +1758,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1749,7 +1796,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1786,7 +1834,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1823,7 +1872,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1860,7 +1910,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1897,7 +1948,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1934,7 +1986,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1971,7 +2024,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2008,7 +2062,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2045,7 +2100,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2082,7 +2138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2119,7 +2176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2156,7 +2214,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2193,7 +2252,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2230,7 +2290,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2267,7 +2328,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2304,7 +2366,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2341,7 +2404,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2378,7 +2442,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2415,7 +2480,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2452,7 +2518,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2489,7 +2556,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2523,7 +2591,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2560,7 +2629,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2597,7 +2667,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2631,7 +2702,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OrientationSensor.json b/api/OrientationSensor.json
index a891117cc1f26d..1503baf3cc269d 100644
--- a/api/OrientationSensor.json
+++ b/api/OrientationSensor.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OscillatorNode.json b/api/OscillatorNode.json
index a634e0381302a1..cfbc251c0f6d56 100644
--- a/api/OscillatorNode.json
+++ b/api/OscillatorNode.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,7 @@
       },
       "OscillatorNode": {
         "__compat": {
-          "description": "<code>OscillatorNode()</code> constructor",
+          "description": "`OscillatorNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OscillatorNode/OscillatorNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-oscillatornode-oscillatornode",
           "tags": [
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -145,7 +148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -186,7 +190,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -225,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/OverconstrainedError.json b/api/OverconstrainedError.json
index a3b88f3dc97145..2c7156494f41d8 100644
--- a/api/OverconstrainedError.json
+++ b/api/OverconstrainedError.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "OverconstrainedError": {
         "__compat": {
-          "description": "<code>OverconstrainedError()</code> constructor",
+          "description": "`OverconstrainedError()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/OverconstrainedError/OverconstrainedError",
           "spec_url": "https://w3c.github.io/mediacapture-main/#dom-overconstrainederror",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PageRevealEvent.json b/api/PageRevealEvent.json
index 32da7f1e9fcd6e..f1ed3a8d0c01f5 100644
--- a/api/PageRevealEvent.json
+++ b/api/PageRevealEvent.json
@@ -6,13 +6,13 @@
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pagerevealevent-interface",
         "support": {
           "chrome": {
-            "version_added": "123",
-            "impl_url": "https://crbug.com/40276316"
+            "version_added": "123"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1860854"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -22,21 +22,22 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": "18.2"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
       },
       "PageRevealEvent": {
         "__compat": {
-          "description": "<code>PageRevealEvent()</code> constructor",
+          "description": "`PageRevealEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageRevealEvent/PageRevealEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pagerevealevent-interface",
           "support": {
@@ -44,9 +45,7 @@
               "version_added": "128"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": false
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": false
             },
@@ -58,14 +57,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -92,14 +92,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/PageSwapEvent.json b/api/PageSwapEvent.json
index 5b6aac6cbf711b..b06f0fd6f988de 100644
--- a/api/PageSwapEvent.json
+++ b/api/PageSwapEvent.json
@@ -6,13 +6,13 @@
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pageswapevent-interface",
         "support": {
           "chrome": {
-            "version_added": "124",
-            "impl_url": "https://crbug.com/41495176"
+            "version_added": "124"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1881438"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -22,21 +22,22 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": "18.2"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
       },
       "PageSwapEvent": {
         "__compat": {
-          "description": "<code>PageSwapEvent()</code> constructor",
+          "description": "`PageSwapEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageSwapEvent/PageSwapEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pageswapevent-interface",
           "support": {
@@ -44,9 +45,7 @@
               "version_added": "128"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": false
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": false
             },
@@ -58,14 +57,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -77,8 +77,7 @@
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-pageswapevent-activation",
           "support": {
             "chrome": {
-              "version_added": "124",
-              "impl_url": "https://crbug.com/41495176"
+              "version_added": "124"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -93,14 +92,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -127,14 +127,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/PageTransitionEvent.json b/api/PageTransitionEvent.json
index 5075012269f26e..6b12077c827379 100644
--- a/api/PageTransitionEvent.json
+++ b/api/PageTransitionEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageTransitionEvent",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pagetransitionevent-interface",
+        "tags": [
+          "web-features:page-transition-events"
+        ],
         "support": {
           "chrome": {
             "version_added": "4"
@@ -31,7 +34,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,9 +45,12 @@
       },
       "PageTransitionEvent": {
         "__compat": {
-          "description": "<code>PageTransitionEvent()</code> constructor",
+          "description": "`PageTransitionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageTransitionEvent/PageTransitionEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pagetransitionevent-interface",
+          "tags": [
+            "web-features:page-transition-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -65,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,6 +86,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageTransitionEvent/persisted",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-pagetransitionevent-persisted-dev",
+          "tags": [
+            "web-features:page-transition-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -92,7 +103,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "11",
-              "notes": "The <code>persisted</code> property is known to be buggy in Internet Explorer. It is advised to check if <code>window.performance.navigation.type == 2</code> as well."
+              "notes": "The `persisted` property is known to be buggy in Internet Explorer. It is advised to check if `window.performance.navigation.type == 2` as well."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -106,7 +117,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PaintRenderingContext2D.json b/api/PaintRenderingContext2D.json
index 0b65b099cc6b7d..c2036d4792d331 100644
--- a/api/PaintRenderingContext2D.json
+++ b/api/PaintRenderingContext2D.json
@@ -3,6 +3,9 @@
     "PaintRenderingContext2D": {
       "__compat": {
         "spec_url": "https://drafts.css-houdini.org/css-paint-api/#2d-rendering-context",
+        "tags": [
+          "web-features:paint"
+        ],
         "support": {
           "chrome": {
             "version_added": "65"
@@ -10,7 +13,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1302328"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/beginPath",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-beginpath-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -57,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/clearRect",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-clearrect-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -91,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/clip",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-clip-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -125,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createLinearGradient",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createlineargradient-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -159,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -172,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createPattern",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createpattern-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -193,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createRadialGradient",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createradialgradient-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -227,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -240,6 +269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/drawImage",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-drawimage-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -261,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,6 +307,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fill",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-fill-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -295,7 +331,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -308,6 +345,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fillRect",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-fillrect-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -329,7 +369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -342,6 +383,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fillStyle",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-fillstyle-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -363,7 +407,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -375,7 +420,9 @@
       "filter": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/filter",
-          "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-filter-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -397,11 +444,12 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
-            "standard_track": true,
+            "standard_track": false,
             "deprecated": false
           }
         }
@@ -410,6 +458,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getLineDash",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-getlinedash-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -431,7 +482,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -444,6 +496,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getTransform",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-gettransform-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -465,7 +520,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -478,6 +534,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/globalAlpha",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-globalalpha-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -499,7 +558,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -512,6 +572,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/globalCompositeOperation",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-globalcompositeoperation-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -533,7 +596,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -546,6 +610,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/imageSmoothingEnabled",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-imagesmoothingenabled-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -567,7 +634,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -580,6 +648,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/imageSmoothingQuality",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-imagesmoothingquality-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -601,7 +672,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -614,6 +686,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/isPointInPath",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-ispointinpath-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -635,7 +710,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -648,6 +724,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/isPointInStroke",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-ispointinstroke-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -669,7 +748,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -682,6 +762,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineCap",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-linecap-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -703,7 +786,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -716,6 +800,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineDashOffset",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-linedashoffset-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -737,7 +824,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -750,6 +838,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineJoin",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-linejoin-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -771,7 +862,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -784,6 +876,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineWidth",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-linewidth-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -805,7 +900,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -818,6 +914,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/miterLimit",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-miterlimit-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -839,7 +938,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -852,6 +952,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/resetTransform",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-resettransform-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -873,7 +976,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -886,6 +990,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/restore",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-restore-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -907,7 +1014,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -920,6 +1028,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/rotate",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-rotate-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -941,7 +1052,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -954,6 +1066,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/save",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-save-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -975,7 +1090,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -988,6 +1104,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/scale",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-scale-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1009,7 +1128,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1022,6 +1142,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-setlinedash-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1043,7 +1166,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1056,6 +1180,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setTransform",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-settransform-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -1077,7 +1204,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1090,6 +1218,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowBlur",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-shadowblur-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1111,7 +1242,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1124,6 +1256,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowColor",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-shadowcolor-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1145,7 +1280,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1158,6 +1294,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowOffsetX",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-shadowoffsetx-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1179,7 +1318,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1192,6 +1332,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowOffsetY",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-shadowoffsety-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1213,7 +1356,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1226,6 +1370,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/stroke",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-stroke-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1247,7 +1394,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1260,6 +1408,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/strokeRect",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-strokerect-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1281,7 +1432,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1294,6 +1446,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/strokeStyle",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-strokestyle-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1315,7 +1470,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1328,6 +1484,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/transform",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-transform-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1349,7 +1508,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1362,6 +1522,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/translate",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-translate-dev",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -1383,7 +1546,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PaintSize.json b/api/PaintSize.json
index 5cc6be48f15cb6..7f1ed1ad233c62 100644
--- a/api/PaintSize.json
+++ b/api/PaintSize.json
@@ -3,6 +3,9 @@
     "PaintSize": {
       "__compat": {
         "spec_url": "https://drafts.css-houdini.org/css-paint-api/#paintsize",
+        "tags": [
+          "web-features:paint"
+        ],
         "support": {
           "chrome": {
             "version_added": "65"
@@ -10,7 +13,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1302328"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,6 +40,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.css-houdini.org/css-paint-api/#dom-paintsize-height",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -56,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -68,6 +77,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.css-houdini.org/css-paint-api/#dom-paintsize-width",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -89,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PaintWorkletGlobalScope.json b/api/PaintWorkletGlobalScope.json
index 032022e9e99b5f..f222d9dc7c8714 100644
--- a/api/PaintWorkletGlobalScope.json
+++ b/api/PaintWorkletGlobalScope.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -42,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaintWorkletGlobalScope/devicePixelRatio",
           "spec_url": "https://drafts.css-houdini.org/css-paint-api/#ref-for-dom-paintworkletglobalscope-devicepixelratio",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -65,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -78,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaintWorkletGlobalScope/registerPaint",
           "spec_url": "https://drafts.css-houdini.org/css-paint-api/#dom-paintworkletglobalscope-registerpaint",
+          "tags": [
+            "web-features:paint"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -101,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PannerNode.json b/api/PannerNode.json
index f821bbd30fba1a..0dd83c8afdb753 100644
--- a/api/PannerNode.json
+++ b/api/PannerNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "PannerNode": {
         "__compat": {
-          "description": "<code>PannerNode()</code> constructor",
+          "description": "`PannerNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PannerNode/PannerNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-pannernode-pannernode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,7 +154,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -192,7 +196,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,7 +238,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +280,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -311,7 +318,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -348,7 +356,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -385,7 +394,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -426,7 +436,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -463,7 +474,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -500,7 +512,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -537,7 +550,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -578,7 +592,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -619,7 +634,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -657,7 +673,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -695,7 +712,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PasswordCredential.json b/api/PasswordCredential.json
index cbb7db93bac226..1e58c42c24f24d 100644
--- a/api/PasswordCredential.json
+++ b/api/PasswordCredential.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PasswordCredential",
         "spec_url": "https://w3c.github.io/webappsec-credential-management/#passwordcredential-interface",
+        "tags": [
+          "web-features:password-credentials"
+        ],
         "support": {
           "chrome": {
             "version_added": "51"
@@ -11,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1156047"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -21,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/252908"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -35,12 +41,15 @@
       },
       "PasswordCredential": {
         "__compat": {
-          "description": "<code>PasswordCredential()</code> constructor",
+          "description": "`PasswordCredential()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PasswordCredential/PasswordCredential",
           "spec_url": [
             "https://w3c.github.io/webappsec-credential-management/#dom-passwordcredential-passwordcredential",
             "https://w3c.github.io/webappsec-credential-management/#dom-passwordcredential-passwordcredential-data"
           ],
+          "tags": [
+            "web-features:password-credentials"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -62,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PasswordCredential/iconURL",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-credentialuserdata-iconurl",
+          "tags": [
+            "web-features:password-credentials"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -96,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -109,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PasswordCredential/name",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-credentialuserdata-name",
+          "tags": [
+            "web-features:password-credentials"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -130,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -143,6 +161,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PasswordCredential/password",
           "spec_url": "https://w3c.github.io/webappsec-credential-management/#dom-passwordcredential-password",
+          "tags": [
+            "web-features:password-credentials"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -164,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Path2D.json b/api/Path2D.json
index 4c085b004fde8b..bb82786a49b368 100644
--- a/api/Path2D.json
+++ b/api/Path2D.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,7 +38,7 @@
       },
       "Path2D": {
         "__compat": {
-          "description": "<code>Path2D()</code> constructor",
+          "description": "`Path2D()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Path2D/Path2D",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-path2d-dev",
           "support": {
@@ -47,7 +48,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "14",
-              "notes": "Before Edge 79, the constructor for <code>Path2D</code> objects does not support invocation with a string consisting of SVG path data."
+              "notes": "Before Edge 79, the constructor for `Path2D` objects does not support invocation with a string consisting of SVG path data."
             },
             "firefox": {
               "version_added": "31"
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -98,7 +100,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,7 +137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -170,7 +174,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +211,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -242,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -278,7 +285,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,7 +322,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -350,7 +359,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -386,7 +396,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -422,7 +433,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -456,7 +468,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PaymentAddress.json b/api/PaymentAddress.json
index 580debe7cb99f7..64964d0f4f4cc1 100644
--- a/api/PaymentAddress.json
+++ b/api/PaymentAddress.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +73,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +115,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,7 +157,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,7 +199,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -236,7 +241,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -277,7 +283,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -318,7 +325,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -359,7 +367,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -400,7 +409,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -441,7 +451,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -452,7 +463,7 @@
       },
       "toJSON": {
         "__compat": {
-          "description": "<code>toJSON()</code>",
+          "description": "`toJSON()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentAddress/toJSON",
           "support": {
             "chrome": {
@@ -483,7 +494,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PaymentInstruments.json b/api/PaymentInstruments.json
index cc38f6242a4688..eb154ec6c80fc1 100644
--- a/api/PaymentInstruments.json
+++ b/api/PaymentInstruments.json
@@ -26,7 +26,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,7 +37,7 @@
       },
       "clear": {
         "__compat": {
-          "description": "<code>clear()</code>",
+          "description": "`clear()`",
           "support": {
             "chrome": {
               "version_added": "70",
@@ -61,7 +62,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -72,7 +74,7 @@
       },
       "delete": {
         "__compat": {
-          "description": "<code>delete()</code>",
+          "description": "`delete()`",
           "support": {
             "chrome": {
               "version_added": "70",
@@ -97,7 +99,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,7 +111,7 @@
       },
       "get": {
         "__compat": {
-          "description": "<code>get()</code>",
+          "description": "`get()`",
           "support": {
             "chrome": {
               "version_added": "70",
@@ -133,7 +136,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,7 +148,7 @@
       },
       "has": {
         "__compat": {
-          "description": "<code>has()</code>",
+          "description": "`has()`",
           "support": {
             "chrome": {
               "version_added": "70",
@@ -169,7 +173,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,7 +185,7 @@
       },
       "keys": {
         "__compat": {
-          "description": "<code>keys()</code>",
+          "description": "`keys()`",
           "support": {
             "chrome": {
               "version_added": "70",
@@ -205,7 +210,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -216,7 +222,7 @@
       },
       "set": {
         "__compat": {
-          "description": "<code>set()</code>",
+          "description": "`set()`",
           "support": {
             "chrome": {
               "version_added": "70",
@@ -241,7 +247,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PaymentManager.json b/api/PaymentManager.json
index 11a96b0b57777b..14ad26a791e35f 100644
--- a/api/PaymentManager.json
+++ b/api/PaymentManager.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentManager",
         "spec_url": "https://w3c.github.io/payment-handler/#paymentmanager-interface",
+        "tags": [
+          "web-features:payment-handler"
+        ],
         "support": {
           "chrome": {
             "version_added": "70"
@@ -11,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1465682"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -27,7 +31,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -35,10 +40,52 @@
           "deprecated": false
         }
       },
+      "secure_context_required": {
+        "__compat": {
+          "description": "Secure context required",
+          "tags": [
+            "web-features:payment-handler"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "122"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "enableDelegations": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentManager/enableDelegations",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentmanager-enabledelegations",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -62,7 +109,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -97,7 +145,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,6 +159,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentManager/userHint",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentmanager-userhint",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -133,7 +185,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PaymentMethodChangeEvent.json b/api/PaymentMethodChangeEvent.json
index 10d6607dc8cc12..83557a05e6ae45 100644
--- a/api/PaymentMethodChangeEvent.json
+++ b/api/PaymentMethodChangeEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentMethodChangeEvent",
         "spec_url": "https://w3c.github.io/payment-request/#paymentmethodchangeevent-interface",
+        "tags": [
+          "web-features:payment-request"
+        ],
         "support": {
           "chrome": {
             "version_added": "76"
@@ -39,7 +42,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,9 +53,12 @@
       },
       "PaymentMethodChangeEvent": {
         "__compat": {
-          "description": "<code>PaymentMethodChangeEvent()</code> constructor",
+          "description": "`PaymentMethodChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentMethodChangeEvent/PaymentMethodChangeEvent",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentmethodchangeevent-constructor",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -87,7 +94,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,6 +108,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentMethodChangeEvent/methodDetails",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentmethodchangeevent-methoddetails",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -135,7 +146,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -148,6 +160,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentMethodChangeEvent/methodName",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentmethodchangeevent-methodname",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -183,7 +198,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PaymentRequest.json b/api/PaymentRequest.json
index 09a1b89f51f304..3cd2e84bd1e171 100644
--- a/api/PaymentRequest.json
+++ b/api/PaymentRequest.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest",
         "spec_url": "https://w3c.github.io/payment-request/#paymentrequest-interface",
+        "tags": [
+          "web-features:payment-request"
+        ],
         "support": {
           "chrome": {
             "version_added": "60"
@@ -45,7 +48,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -55,9 +59,12 @@
       },
       "PaymentRequest": {
         "__compat": {
-          "description": "<code>PaymentRequest()</code> constructor",
+          "description": "`PaymentRequest()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest/PaymentRequest",
           "spec_url": "https://w3c.github.io/payment-request/#constructor",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -94,7 +101,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,8 +112,11 @@
         },
         "secure_payment_confirmation_method": {
           "__compat": {
-            "description": "<code>secure-payment-confirmation</code> method",
+            "description": "`secure-payment-confirmation` method",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/Payment_Request_API/Concepts#secure-payment-confirmation",
+            "tags": [
+              "web-features:payment-request"
+            ],
             "support": {
               "chrome": {
                 "version_added": "95"
@@ -135,7 +146,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -147,9 +159,12 @@
       },
       "abort": {
         "__compat": {
-          "description": "<code>abort()</code>",
+          "description": "`abort()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest/abort",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentrequest-abort",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -186,7 +201,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -197,9 +213,12 @@
       },
       "canMakePayment": {
         "__compat": {
-          "description": "<code>canMakePayment()</code>",
+          "description": "`canMakePayment()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest/canMakePayment",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentrequest-canmakepayment",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -236,7 +255,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,6 +269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest/id",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentrequest-id",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -281,7 +304,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -292,7 +316,7 @@
       },
       "merchantvalidation_event": {
         "__compat": {
-          "description": "<code>merchantvalidation</code> event",
+          "description": "`merchantvalidation` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest/merchantvalidation_event",
           "support": {
             "chrome": {
@@ -322,7 +346,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -333,12 +358,15 @@
       },
       "paymentmethodchange_event": {
         "__compat": {
-          "description": "<code>paymentmethodchange</code> event",
+          "description": "`paymentmethodchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest/paymentmethodchange_event",
           "spec_url": [
             "https://w3c.github.io/payment-request/#dfn-paymentmethodchange",
             "https://w3c.github.io/payment-request/#onpaymentmethodchange-attribute"
           ],
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -373,7 +401,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -421,7 +450,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,7 +462,7 @@
       },
       "shippingaddresschange_event": {
         "__compat": {
-          "description": "<code>shippingaddresschange</code> event",
+          "description": "`shippingaddresschange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest/shippingaddresschange_event",
           "support": {
             "chrome": {
@@ -470,7 +500,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -518,7 +549,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -529,7 +561,7 @@
       },
       "shippingoptionchange_event": {
         "__compat": {
-          "description": "<code>shippingoptionchange</code> event",
+          "description": "`shippingoptionchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest/shippingoptionchange_event",
           "support": {
             "chrome": {
@@ -567,7 +599,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -615,7 +648,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -628,6 +662,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequest/show",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentrequest-show",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -664,7 +701,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PaymentRequestEvent.json b/api/PaymentRequestEvent.json
index e0de4ddc7824c1..46ad9d4df41f6d 100644
--- a/api/PaymentRequestEvent.json
+++ b/api/PaymentRequestEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent",
         "spec_url": "https://w3c.github.io/payment-handler/#the-paymentrequestevent",
+        "tags": [
+          "web-features:payment-handler"
+        ],
         "support": {
           "chrome": {
             "version_added": "70"
@@ -11,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1465682"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -27,7 +31,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +42,12 @@
       },
       "PaymentRequestEvent": {
         "__compat": {
-          "description": "<code>PaymentRequestEvent()</code> constructor",
+          "description": "`PaymentRequestEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/PaymentRequestEvent",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentrequestevent-constructor",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -63,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -76,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/changePaymentMethod",
           "spec_url": "https://w3c.github.io/payment-handler/#changepaymentmethod-method",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -99,7 +111,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +124,9 @@
       "changeShippingAddress": {
         "__compat": {
           "spec_url": "https://w3c.github.io/payment-handler/#changeshippingaddress-method",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -134,7 +150,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,6 +163,9 @@
       "changeShippingOption": {
         "__compat": {
           "spec_url": "https://w3c.github.io/payment-handler/#changeshippingoption-method",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -169,7 +189,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -205,7 +226,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -218,6 +240,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/methodData",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentrequestevent-methoddata",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -241,7 +266,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -254,6 +280,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/modifiers",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentrequestevent-modifiers",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -277,7 +306,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -288,9 +318,12 @@
       },
       "openWindow": {
         "__compat": {
-          "description": "<code>openWindow()</code>",
+          "description": "`openWindow()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/openWindow",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentrequestevent-openwindow",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -314,7 +347,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -326,6 +360,9 @@
       "paymentOptions": {
         "__compat": {
           "spec_url": "https://w3c.github.io/payment-handler/#paymentoptions-attribute",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -349,7 +386,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -362,6 +400,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/paymentRequestId",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentrequestevent-paymentrequestid",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -385,7 +426,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -398,6 +440,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/paymentRequestOrigin",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentrequestevent-paymentrequestorigin",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -421,7 +466,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -432,9 +478,12 @@
       },
       "respondWith": {
         "__compat": {
-          "description": "<code>respondWith()</code>",
+          "description": "`respondWith()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/respondWith",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentrequestevent-respondwith",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -458,7 +507,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -470,6 +520,9 @@
       "shippingOptions": {
         "__compat": {
           "spec_url": "https://w3c.github.io/payment-handler/#shippingoptions-attribute",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -493,7 +546,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -506,6 +560,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/topOrigin",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentrequestevent-toporigin",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -529,7 +586,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -542,6 +600,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestEvent/total",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-paymentrequestevent-total",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -565,7 +626,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PaymentRequestUpdateEvent.json b/api/PaymentRequestUpdateEvent.json
index 4272b482f29684..6a8b2894fc5d54 100644
--- a/api/PaymentRequestUpdateEvent.json
+++ b/api/PaymentRequestUpdateEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestUpdateEvent",
         "spec_url": "https://w3c.github.io/payment-request/#paymentrequestupdateevent-interface",
+        "tags": [
+          "web-features:payment-request"
+        ],
         "support": {
           "chrome": {
             "version_added": "60"
@@ -43,7 +46,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -53,9 +57,12 @@
       },
       "PaymentRequestUpdateEvent": {
         "__compat": {
-          "description": "<code>PaymentRequestUpdateEvent()</code> constructor",
+          "description": "`PaymentRequestUpdateEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestUpdateEvent/PaymentRequestUpdateEvent",
           "spec_url": "https://w3c.github.io/payment-request/#constructor-0",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -90,7 +97,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,11 +107,53 @@
           }
         }
       },
+      "secure_context_required": {
+        "__compat": {
+          "description": "Secure context required",
+          "tags": [
+            "web-features:payment-request"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "122"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "updateWith": {
         "__compat": {
-          "description": "<code>updateWith()</code>",
+          "description": "`updateWith()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentRequestUpdateEvent/updateWith",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentrequestupdateevent-updatewith",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -138,7 +188,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PaymentResponse.json b/api/PaymentResponse.json
index fcc5119515b4f3..13c266cd974a0e 100644
--- a/api/PaymentResponse.json
+++ b/api/PaymentResponse.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse",
         "spec_url": "https://w3c.github.io/payment-request/#paymentresponse-interface",
+        "tags": [
+          "web-features:payment-request"
+        ],
         "support": {
           "chrome": {
             "version_added": "60"
@@ -43,7 +46,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -53,9 +57,12 @@
       },
       "complete": {
         "__compat": {
-          "description": "<code>complete()</code>",
+          "description": "`complete()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/complete",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentresponse-complete",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -95,7 +102,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +116,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/details",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentresponse-details",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -147,7 +158,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -160,6 +172,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/methodName",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentresponse-methodname",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -199,7 +214,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -210,8 +226,12 @@
       },
       "payerdetailchange_event": {
         "__compat": {
-          "description": "<code>payerdetailchange</code> event",
+          "description": "`payerdetailchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/payerdetailchange_event",
+          "spec_url": "https://w3c.github.io/payment-request/#dfn-payerdetailchange",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "78"
@@ -251,18 +271,23 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
-            "standard_track": false,
-            "deprecated": true
+            "standard_track": true,
+            "deprecated": false
           }
         }
       },
       "payerEmail": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/payerEmail",
+          "spec_url": "https://w3c.github.io/payment-request/#payeremail-attribute",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -302,18 +327,23 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
-            "standard_track": false,
-            "deprecated": true
+            "standard_track": true,
+            "deprecated": false
           }
         }
       },
       "payerName": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/payerName",
+          "spec_url": "https://w3c.github.io/payment-request/#payername-attribute",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -353,18 +383,23 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
-            "standard_track": false,
-            "deprecated": true
+            "standard_track": true,
+            "deprecated": false
           }
         }
       },
       "payerPhone": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/payerPhone",
+          "spec_url": "https://w3c.github.io/payment-request/#payerphone-attribute",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -404,12 +439,13 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
-            "standard_track": false,
-            "deprecated": true
+            "standard_track": true,
+            "deprecated": false
           }
         }
       },
@@ -417,6 +453,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/requestId",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentresponse-requestid",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -456,7 +495,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -469,6 +509,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/retry",
           "spec_url": "https://w3c.github.io/payment-request/#dom-paymentresponse-retry",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "78"
@@ -512,7 +555,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -524,6 +568,10 @@
       "shippingAddress": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/shippingAddress",
+          "spec_url": "https://w3c.github.io/payment-request/#shippingaddress-attribute",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -563,18 +611,23 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
-            "standard_track": false,
-            "deprecated": true
+            "standard_track": true,
+            "deprecated": false
           }
         }
       },
       "shippingOption": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/shippingOption",
+          "spec_url": "https://w3c.github.io/payment-request/#shippingoption-attribute",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -614,19 +667,23 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
-            "standard_track": false,
-            "deprecated": true
+            "standard_track": true,
+            "deprecated": false
           }
         }
       },
       "toJSON": {
         "__compat": {
-          "description": "<code>toJSON()</code>",
+          "description": "`toJSON()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PaymentResponse/toJSON",
+          "tags": [
+            "web-features:payment-request"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -666,7 +723,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Performance.json b/api/Performance.json
index 9321abe5de9ec9..9693191e4ede1a 100644
--- a/api/Performance.json
+++ b/api/Performance.json
@@ -9,6 +9,9 @@
           "https://w3c.github.io/resource-timing/#sec-extensions-performance-interface",
           "https://w3c.github.io/user-timing/#extensions-performance-interface"
         ],
+        "tags": [
+          "web-features:performance"
+        ],
         "support": {
           "chrome": {
             "version_added": "6"
@@ -34,7 +37,7 @@
             {
               "version_added": "8.5.0",
               "partial_implementation": true,
-              "notes": "Exported from the <code>perf_hooks</code> module"
+              "notes": "Exported from the `perf_hooks` module"
             }
           ],
           "oculus": "mirror",
@@ -49,7 +52,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -61,6 +65,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/clearMarks",
           "spec_url": "https://w3c.github.io/user-timing/#dom-performance-clearmarks",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -103,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,6 +124,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/clearMeasures",
           "spec_url": "https://w3c.github.io/user-timing/#dom-performance-clearmeasures",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -158,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +183,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/clearResourceTimings",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performance-clearresourcetimings",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -213,7 +228,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -226,6 +242,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/eventCounts",
           "spec_url": "https://w3c.github.io/event-timing/#dom-performance-eventcounts",
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -253,7 +272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -266,6 +286,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/getEntries",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performance-getentries",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -304,7 +327,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -317,6 +341,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/getEntriesByName",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performance-getentriesbyname",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -355,7 +382,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -368,6 +396,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/getEntriesByType",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performance-getentriesbytype",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -406,7 +437,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -419,6 +451,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/mark",
           "spec_url": "https://w3c.github.io/user-timing/#dom-performance-mark",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -461,7 +496,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -471,7 +507,10 @@
         },
         "markOptions_parameter": {
           "__compat": {
-            "description": "<code>markOptions</code> parameter",
+            "description": "`markOptions` parameter",
+            "tags": [
+              "web-features:performance"
+            ],
             "support": {
               "chrome": {
                 "version_added": "78"
@@ -499,7 +538,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -510,7 +550,10 @@
         },
         "returns_performancemark": {
           "__compat": {
-            "description": "Returns <code>PerformanceMark</code>",
+            "description": "Returns `PerformanceMark`",
+            "tags": [
+              "web-features:performance"
+            ],
             "support": {
               "chrome": {
                 "version_added": "78"
@@ -538,7 +581,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -552,6 +596,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/measure",
           "spec_url": "https://w3c.github.io/user-timing/#dom-performance-measure",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -594,7 +641,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -604,10 +652,13 @@
         },
         "measureOptions_parameter": {
           "__compat": {
-            "description": "<code>measureOptions</code> parameter",
+            "description": "`measureOptions` parameter",
+            "tags": [
+              "web-features:performance"
+            ],
             "support": {
               "chrome": {
-                "version_added": "78"
+                "version_added": "77"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -632,7 +683,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -643,7 +695,10 @@
         },
         "returns_performancemeasure": {
           "__compat": {
-            "description": "Returns <code>PerformanceMeasure</code>",
+            "description": "Returns `PerformanceMeasure`",
+            "tags": [
+              "web-features:performance"
+            ],
             "support": {
               "chrome": {
                 "version_added": "78"
@@ -671,7 +726,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -685,6 +741,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/measureUserAgentSpecificMemory",
           "spec_url": "https://wicg.github.io/performance-measure-memory/#ref-for-dom-performance-measureuseragentspecificmemory⑤",
+          "tags": [
+            "web-features:measure-memory"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -712,7 +771,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -753,7 +813,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -799,7 +860,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -812,6 +874,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/now",
           "spec_url": "https://w3c.github.io/hr-time/#dom-performance-now",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -855,7 +920,8 @@
               "version_added": "9"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -866,9 +932,12 @@
       },
       "resourcetimingbufferfull_event": {
         "__compat": {
-          "description": "<code>resourcetimingbufferfull</code> event",
+          "description": "`resourcetimingbufferfull` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/resourcetimingbufferfull_event",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performance-onresourcetimingbufferfull",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -903,7 +972,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -916,6 +986,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/setResourceTimingBufferSize",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performance-setresourcetimingbuffersize",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": [
               {
@@ -952,7 +1025,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -965,6 +1039,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/timeOrigin",
           "spec_url": "https://w3c.github.io/hr-time/#dom-performance-timeorigin",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "62"
@@ -994,7 +1071,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1043,7 +1121,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1056,6 +1135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Performance/toJSON",
           "spec_url": "https://w3c.github.io/hr-time/#dom-performance-tojson",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1085,7 +1167,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceElementTiming.json b/api/PerformanceElementTiming.json
index 2a75d9f846b2b1..85cab6605e539f 100644
--- a/api/PerformanceElementTiming.json
+++ b/api/PerformanceElementTiming.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming",
         "spec_url": "https://wicg.github.io/element-timing/#sec-performance-element-timing",
+        "tags": [
+          "web-features:element-timing"
+        ],
         "support": {
           "chrome": {
             "version_added": "77"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/element",
           "spec_url": "https://wicg.github.io/element-timing/#ref-for-dom-performanceelementtiming-element",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/id",
           "spec_url": "https://wicg.github.io/element-timing/#ref-for-dom-performanceelementtiming-id",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/identifier",
           "spec_url": "https://wicg.github.io/element-timing/#ref-for-dom-performanceelementtiming-identifier",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/intersectionRect",
           "spec_url": "https://wicg.github.io/element-timing/#ref-for-dom-performanceelementtiming-intersectionrect",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -160,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -173,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/loadTime",
           "spec_url": "https://wicg.github.io/element-timing/#ref-for-dom-performanceelementtiming-loadtime①",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -194,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -207,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/naturalHeight",
           "spec_url": "https://wicg.github.io/element-timing/#ref-for-dom-performanceelementtiming-naturalheight",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -228,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -241,6 +269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/naturalWidth",
           "spec_url": "https://wicg.github.io/element-timing/#ref-for-dom-performanceelementtiming-naturalwidth",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -262,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -275,6 +307,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/renderTime",
           "spec_url": "https://wicg.github.io/element-timing/#ref-for-dom-performanceelementtiming-rendertime①",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -296,7 +331,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -309,6 +345,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/toJSON",
           "spec_url": "https://wicg.github.io/element-timing/#dom-performanceelementtiming-tojson",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -330,7 +369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -343,6 +383,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming/url",
           "spec_url": "https://wicg.github.io/element-timing/#ref-for-dom-performanceelementtiming-url",
+          "tags": [
+            "web-features:element-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -364,7 +407,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PerformanceEntry.json b/api/PerformanceEntry.json
index 8050bd70d773d0..e87a5214d0a0a5 100644
--- a/api/PerformanceEntry.json
+++ b/api/PerformanceEntry.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEntry",
         "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceentry",
+        "tags": [
+          "web-features:performance"
+        ],
         "support": {
           "chrome": [
             {
@@ -39,7 +42,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -50,6 +54,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "62"
@@ -79,7 +86,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,6 +100,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEntry/duration",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceentry-duration",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "28"
@@ -123,7 +134,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,6 +148,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEntry/entryType",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceentry-entrytype",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "28"
@@ -167,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,6 +196,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEntry/name",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceentry-name",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "28"
@@ -211,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,6 +244,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEntry/startTime",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceentry-starttime",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "28"
@@ -255,7 +278,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -268,6 +292,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEntry/toJSON",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceentry-tojson",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "45"
@@ -297,7 +324,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceEventTiming.json b/api/PerformanceEventTiming.json
index 23a3fcaf0bb34c..df0d0657080a95 100644
--- a/api/PerformanceEventTiming.json
+++ b/api/PerformanceEventTiming.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming",
         "spec_url": "https://w3c.github.io/event-timing/#sec-performance-event-timing",
+        "tags": [
+          "web-features:event-timing"
+        ],
         "support": {
           "chrome": {
             "version_added": "76"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/cancelable",
           "spec_url": "https://w3c.github.io/event-timing/#dom-performanceeventtiming-cancelable",
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/interactionId",
           "spec_url": "https://w3c.github.io/event-timing/#dom-performanceeventtiming-interactionid",
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "96"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/processingEnd",
           "spec_url": "https://w3c.github.io/event-timing/#dom-performanceeventtiming-processingend",
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/processingStart",
           "spec_url": "https://w3c.github.io/event-timing/#dom-performanceeventtiming-processingstart",
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -160,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/target",
           "spec_url": "https://w3c.github.io/event-timing/#dom-performanceeventtiming-target",
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -194,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/toJSON",
           "spec_url": "https://w3c.github.io/event-timing/#dom-performanceeventtiming-tojson",
+          "tags": [
+            "web-features:event-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -228,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceLongAnimationFrameTiming.json b/api/PerformanceLongAnimationFrameTiming.json
index 9bbec5617d2365..88313f6c0c3311 100644
--- a/api/PerformanceLongAnimationFrameTiming.json
+++ b/api/PerformanceLongAnimationFrameTiming.json
@@ -5,7 +5,7 @@
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming",
         "spec_url": "https://w3c.github.io/long-animation-frames/#sec-PerformanceLongAnimationFrameTiming",
         "tags": [
-          "web-features:long-animation-frame-timing"
+          "web-features:long-animation-frames"
         ],
         "support": {
           "chrome": {
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/blockingDuration",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-blockingduration",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -78,7 +80,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/firstUIEventTimestamp",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-firstuieventtimestamp",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -115,7 +118,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/renderStart",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-renderstart",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -152,7 +156,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/scripts",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-scripts",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -189,7 +194,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/styleAndLayoutStart",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-styleandlayoutstart",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -212,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -226,7 +232,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/toJSON",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-tojson",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -249,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PerformanceLongTaskTiming.json b/api/PerformanceLongTaskTiming.json
index 36ae656e857e10..e4a1c572f003eb 100644
--- a/api/PerformanceLongTaskTiming.json
+++ b/api/PerformanceLongTaskTiming.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongTaskTiming",
         "spec_url": "https://w3c.github.io/longtasks/#sec-PerformanceLongTaskTiming",
+        "tags": [
+          "web-features:longtasks"
+        ],
         "support": {
           "chrome": {
             "version_added": "58"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,6 +42,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongTaskTiming/attribution",
           "spec_url": "https://w3c.github.io/longtasks/#dom-performancelongtasktiming-attribution",
+          "tags": [
+            "web-features:longtasks"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -72,6 +80,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongTaskTiming/toJSON",
           "spec_url": "https://w3c.github.io/longtasks/#dom-performancelongtasktiming-tojson",
+          "tags": [
+            "web-features:longtasks"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -93,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PerformanceMark.json b/api/PerformanceMark.json
index 0c9bd4d2dae077..12cc6e49744555 100644
--- a/api/PerformanceMark.json
+++ b/api/PerformanceMark.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceMark",
         "spec_url": "https://w3c.github.io/user-timing/#performancemark",
+        "tags": [
+          "web-features:performance"
+        ],
         "support": {
           "chrome": {
             "version_added": "28"
@@ -35,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,9 +49,12 @@
       },
       "PerformanceMark": {
         "__compat": {
-          "description": "<code>PerformanceMark()</code> constructor",
+          "description": "`PerformanceMark()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceMark/PerformanceMark",
           "spec_url": "https://w3c.github.io/user-timing/#dom-performancemark-constructor",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "79"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -90,6 +98,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceMark/detail",
           "spec_url": "https://w3c.github.io/user-timing/#dom-performancemark-detail",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "78"
@@ -119,7 +130,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "79"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceMeasure.json b/api/PerformanceMeasure.json
index fb88d2e740332b..206645f09d0691 100644
--- a/api/PerformanceMeasure.json
+++ b/api/PerformanceMeasure.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceMeasure",
         "spec_url": "https://w3c.github.io/user-timing/#performancemeasure",
+        "tags": [
+          "web-features:performance"
+        ],
         "support": {
           "chrome": {
             "version_added": "25"
@@ -37,7 +40,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,6 +53,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceMeasure/detail",
           "spec_url": "https://w3c.github.io/user-timing/#dom-performancemeasure-detail",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "78"
@@ -76,7 +83,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceNavigation.json b/api/PerformanceNavigation.json
index 7e001bf4e84cff..a56259faf62fdc 100644
--- a/api/PerformanceNavigation.json
+++ b/api/PerformanceNavigation.json
@@ -31,7 +31,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -70,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,7 @@
             },
             "firefox": {
               "version_added": "25",
-              "notes": "Before Firefox 70, this property could return incorrect values. See <a href='https://bugzil.la/1459711'>bug 1459711</a>."
+              "notes": "Before Firefox 70, this property could return incorrect values. See [bug 1459711](https://bugzil.la/1459711)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,7 +133,7 @@
             },
             "firefox": {
               "version_added": "7",
-              "notes": "Before Firefox 70, this property could return incorrect values. See <a href='https://bugzil.la/1459711'>bug 1459711</a>."
+              "notes": "Before Firefox 70, this property could return incorrect values. See [bug 1459711](https://bugzil.la/1459711)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -148,7 +151,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceNavigationTiming.json b/api/PerformanceNavigationTiming.json
index 10eab3f8bfbd7d..aa8f55fe53dab5 100644
--- a/api/PerformanceNavigationTiming.json
+++ b/api/PerformanceNavigationTiming.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming",
         "spec_url": "https://w3c.github.io/navigation-timing/#sec-PerformanceNavigationTiming",
+        "tags": [
+          "web-features:navigation-timing"
+        ],
         "support": {
           "chrome": {
             "version_added": "57"
@@ -29,7 +32,8 @@
             "version_added": "15.1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +45,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/activationStart",
           "spec_url": "https://wicg.github.io/nav-speculation/prerendering.html#dom-performancenavigationtiming-activationstart",
+          "tags": [
+            "web-features:speculation-rules"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -77,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/criticalCHRestart",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-criticalchrestart",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "116"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/domComplete",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-domcomplete",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -136,7 +151,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -149,6 +165,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/domContentLoadedEventEnd",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-domcontentloadedeventend",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -174,7 +193,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -187,6 +207,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/domContentLoadedEventStart",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-domcontentloadedeventstart",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -212,7 +235,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -225,6 +249,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/domInteractive",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-dominteractive",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -250,7 +277,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -263,6 +291,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/loadEventEnd",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-loadeventend",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -288,7 +319,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -301,6 +333,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/loadEventStart",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-loadeventstart",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -326,7 +361,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,6 +375,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/notRestoredReasons",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-notrestoredreasons",
+          "tags": [
+            "web-features:bfcache-blocking-reasons"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -360,7 +399,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -373,6 +413,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/redirectCount",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-redirectcount",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -398,7 +441,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -411,6 +455,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/toJSON",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-tojson",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -436,7 +483,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -449,6 +497,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/type",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-type",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -474,7 +525,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -487,6 +539,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/unloadEventEnd",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-unloadeventend",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -512,7 +567,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -525,6 +581,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/unloadEventStart",
           "spec_url": "https://w3c.github.io/navigation-timing/#dom-performancenavigationtiming-unloadeventstart",
+          "tags": [
+            "web-features:navigation-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -550,7 +609,8 @@
               "version_added": "15.1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceObserver.json b/api/PerformanceObserver.json
index 78fe5d03e82cf8..be3cc2f537c77e 100644
--- a/api/PerformanceObserver.json
+++ b/api/PerformanceObserver.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserver",
         "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceobserver",
+        "tags": [
+          "web-features:performance"
+        ],
         "support": {
           "chrome": {
             "version_added": "52"
@@ -20,7 +23,7 @@
           "nodejs": {
             "version_added": "8.5.0",
             "partial_implementation": true,
-            "notes": "Exported from the <code>perf_hooks</code> module"
+            "notes": "Exported from the `perf_hooks` module"
           },
           "oculus": "mirror",
           "opera": "mirror",
@@ -30,7 +33,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,9 +44,12 @@
       },
       "PerformanceObserver": {
         "__compat": {
-          "description": "<code>PerformanceObserver()</code> constructor",
+          "description": "`PerformanceObserver()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserver/PerformanceObserver",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceobserver-constructor",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,8 +85,11 @@
         },
         "droppedEntriesCount": {
           "__compat": {
-            "description": "<code>droppedEntriesCount()</code> parameter",
+            "description": "`droppedEntriesCount()` parameter",
             "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceobservercallbackoptions-droppedentriescount",
+            "tags": [
+              "web-features:performance"
+            ],
             "support": {
               "chrome": {
                 "version_added": "95"
@@ -103,7 +114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -116,6 +128,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "62"
@@ -130,7 +145,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -140,7 +155,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -153,6 +169,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserver/disconnect",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceobserver-disconnect",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -177,7 +196,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,6 +210,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserver/observe",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceobserver-observe",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -214,7 +237,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -225,9 +249,12 @@
       },
       "supportedEntryTypes_static": {
         "__compat": {
-          "description": "<code>supportedEntryTypes()</code> static method",
+          "description": "`supportedEntryTypes()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserver/supportedEntryTypes_static",
           "spec_url": "https://w3c.github.io/performance-timeline/#supportedentrytypes-attribute",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "73"
@@ -252,7 +279,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -265,6 +293,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserver/takeRecords",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceobserver-takerecords",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -289,7 +320,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceObserverEntryList.json b/api/PerformanceObserverEntryList.json
index 2b457714c26a59..3a9790624d241b 100644
--- a/api/PerformanceObserverEntryList.json
+++ b/api/PerformanceObserverEntryList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserverEntryList",
         "spec_url": "https://w3c.github.io/performance-timeline/#performanceobserverentrylist-interface",
+        "tags": [
+          "web-features:performance"
+        ],
         "support": {
           "chrome": {
             "version_added": "52"
@@ -28,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserverEntryList/getEntries",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceobserverentrylist-getentries",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserverEntryList/getEntriesByName",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceobserverentrylist-getentriesbyname",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -101,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -114,6 +126,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceObserverEntryList/getEntriesByType",
           "spec_url": "https://w3c.github.io/performance-timeline/#dom-performanceobserverentrylist-getentriesbytype",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -138,7 +153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformancePaintTiming.json b/api/PerformancePaintTiming.json
index f426d3f24b9a09..feb0bd4e29255e 100644
--- a/api/PerformancePaintTiming.json
+++ b/api/PerformancePaintTiming.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformancePaintTiming",
         "spec_url": "https://w3c.github.io/paint-timing/#sec-PerformancePaintTiming",
+        "tags": [
+          "web-features:paint-timing"
+        ],
         "support": {
           "chrome": {
             "version_added": "60"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,9 +39,12 @@
       },
       "first-contentful-paint": {
         "__compat": {
-          "description": "<code>first-contentful-paint</code> named entry",
+          "description": "`first-contentful-paint` named entry",
           "mdn_url": "https://developer.mozilla.org/docs/Glossary/First_contentful_paint",
           "spec_url": "https://w3c.github.io/paint-timing/#first-contentful-paint",
+          "tags": [
+            "web-features:paint-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,9 +78,12 @@
       },
       "first-paint": {
         "__compat": {
-          "description": "<code>first-paint</code> named entry",
+          "description": "`first-paint` named entry",
           "mdn_url": "https://developer.mozilla.org/docs/Glossary/First_paint",
           "spec_url": "https://w3c.github.io/paint-timing/#first-paint",
+          "tags": [
+            "web-features:paint-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -94,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceResourceTiming.json b/api/PerformanceResourceTiming.json
index 0b9ec2a491b3b3..b8e0a986949f34 100644
--- a/api/PerformanceResourceTiming.json
+++ b/api/PerformanceResourceTiming.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +42,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -70,7 +74,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -169,6 +176,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/contentType",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-contenttype",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -190,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -229,7 +240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -242,6 +254,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/deliveryType",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-deliverytype",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -263,7 +278,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -273,7 +289,7 @@
         },
         "navigational-prefetch": {
           "__compat": {
-            "description": "<code>deliveryType=\"navigational-prefetch\"</code>",
+            "description": "`deliveryType=\"navigational-prefetch\"`",
             "spec_url": "https://wicg.github.io/nav-speculation/prefetch.html#ref-for-navigation-params-delivery-type",
             "support": {
               "chrome": {
@@ -296,7 +312,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -336,7 +353,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -375,7 +393,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -414,7 +433,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -453,7 +473,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -466,6 +487,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/firstInterimResponseStart",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-firstinterimresponsestart",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "115"
@@ -488,7 +512,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -527,7 +552,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -540,6 +566,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/nextHopProtocol",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-nexthopprotocol",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -563,7 +592,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -602,7 +632,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -641,7 +672,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -654,6 +686,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/renderBlockingStatus",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-renderblockingstatus",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "107"
@@ -675,7 +710,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -714,7 +750,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -753,7 +790,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -792,7 +830,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -805,6 +844,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/responseStatus",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-responsestatus",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -826,7 +868,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -839,6 +882,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/secureConnectionStart",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-secureconnectionstart",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -862,7 +908,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -899,7 +946,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -912,6 +960,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/toJSON",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-tojson",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "45"
@@ -944,7 +995,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -983,7 +1035,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -996,6 +1049,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/workerStart",
           "spec_url": "https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-workerstart",
+          "tags": [
+            "web-features:resource-timing"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -1023,7 +1079,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceScriptTiming.json b/api/PerformanceScriptTiming.json
index 6b70e13bc05d5f..7ee226a1c71735 100644
--- a/api/PerformanceScriptTiming.json
+++ b/api/PerformanceScriptTiming.json
@@ -5,7 +5,7 @@
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming",
         "spec_url": "https://w3c.github.io/long-animation-frames/#sec-PerformanceScriptTiming",
         "tags": [
-          "web-features:long-animation-frame-timing"
+          "web-features:long-animation-frames"
         ],
         "support": {
           "chrome": {
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/executionStart",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-executionstart",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -78,7 +80,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/forcedStyleAndLayoutDuration",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-forcedstyleandlayoutduration",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -115,7 +118,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/invoker",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-invoker",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -152,7 +156,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/invokerType",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-invokertype",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -189,7 +194,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/pauseDuration",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-pauseduration",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -212,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -226,7 +232,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/sourceCharPosition",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-sourcecharposition",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -249,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -263,7 +270,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/sourceFunctionName",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-sourcefunctionname",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -286,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -300,7 +308,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/sourceURL",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-sourceurl",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -323,7 +331,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -337,7 +346,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/toJSON",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-tojson",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -360,7 +369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -374,7 +384,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/window",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-window",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -397,7 +407,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -411,7 +422,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/windowAttribution",
           "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-windowattribution",
           "tags": [
-            "web-features:long-animation-frame-timing"
+            "web-features:long-animation-frames"
           ],
           "support": {
             "chrome": {
@@ -434,7 +445,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PerformanceServerTiming.json b/api/PerformanceServerTiming.json
index f5abc3bbf09a82..da0e5bbce08f80 100644
--- a/api/PerformanceServerTiming.json
+++ b/api/PerformanceServerTiming.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PerformanceTiming.json b/api/PerformanceTiming.json
index ea6a0372e1240a..b906cf5fba3ac0 100644
--- a/api/PerformanceTiming.json
+++ b/api/PerformanceTiming.json
@@ -31,7 +31,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -70,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,7 +153,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,7 +194,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -230,7 +235,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -270,7 +276,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -310,7 +317,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -350,7 +358,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -390,7 +399,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -430,7 +440,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -470,7 +481,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -510,7 +522,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -550,7 +563,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -590,7 +604,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -630,7 +645,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -670,7 +686,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -710,7 +727,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -750,7 +768,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -790,7 +809,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -828,7 +848,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -868,7 +889,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -908,7 +930,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PeriodicSyncEvent.json b/api/PeriodicSyncEvent.json
index 2061eb1861e081..7f04a2cd9a80ca 100644
--- a/api/PeriodicSyncEvent.json
+++ b/api/PeriodicSyncEvent.json
@@ -26,8 +26,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40151529"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,7 +39,7 @@
       },
       "PeriodicSyncEvent": {
         "__compat": {
-          "description": "<code>PeriodicSyncEvent()</code> constructor",
+          "description": "`PeriodicSyncEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PeriodicSyncEvent/PeriodicSyncEvent",
           "spec_url": "https://wicg.github.io/periodic-background-sync/#dom-periodicsyncevent-periodicsyncevent",
           "support": {
@@ -63,7 +65,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -99,7 +102,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PeriodicSyncManager.json b/api/PeriodicSyncManager.json
index d49d9f13c4921a..10b1af0a92b6a5 100644
--- a/api/PeriodicSyncManager.json
+++ b/api/PeriodicSyncManager.json
@@ -26,8 +26,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40151529"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -62,7 +64,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -98,7 +101,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -134,7 +138,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PeriodicWave.json b/api/PeriodicWave.json
index 072e937d6e979b..ff46a68eaf8e6f 100644
--- a/api/PeriodicWave.json
+++ b/api/PeriodicWave.json
@@ -34,7 +34,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,7 +45,7 @@
       },
       "PeriodicWave": {
         "__compat": {
-          "description": "<code>PeriodicWave()</code> constructor",
+          "description": "`PeriodicWave()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PeriodicWave/PeriodicWave",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-periodicwave-periodicwave",
           "tags": [
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PermissionStatus.json b/api/PermissionStatus.json
index 8020cfdf135d1a..f26721c8adba9d 100644
--- a/api/PermissionStatus.json
+++ b/api/PermissionStatus.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/490120"
-          }
+            "impl_url": "https://crbug.com/40418964"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +42,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PermissionStatus/change_event",
           "spec_url": "https://w3c.github.io/permissions/#dom-permissionstatus-onchange",
           "support": {
@@ -67,7 +68,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +105,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -149,7 +152,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Permissions.json b/api/Permissions.json
index d284f2ad2fc130..27493370f4966d 100644
--- a/api/Permissions.json
+++ b/api/Permissions.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/490120"
-          }
+            "impl_url": "https://crbug.com/40418964"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +42,7 @@
       },
       "permission_accelerometer": {
         "__compat": {
-          "description": "<code>accelerometer</code> permission",
+          "description": "`accelerometer` permission",
           "tags": [
             "web-features:accelerometer"
           ],
@@ -68,7 +69,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -79,7 +81,7 @@
       },
       "permission_accessibility-events": {
         "__compat": {
-          "description": "<code>accessibility-events</code> permission",
+          "description": "`accessibility-events` permission",
           "support": {
             "chrome": {
               "version_added": "62"
@@ -103,7 +105,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -114,7 +117,7 @@
       },
       "permission_ambient-light-sensor": {
         "__compat": {
-          "description": "<code>ambient-light-sensor</code> permission",
+          "description": "`ambient-light-sensor` permission",
           "support": {
             "chrome": {
               "version_added": "62",
@@ -143,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -154,7 +158,7 @@
       },
       "permission_background-sync": {
         "__compat": {
-          "description": "<code>background-sync</code> permission",
+          "description": "`background-sync` permission",
           "support": {
             "chrome": {
               "version_added": "62"
@@ -172,48 +176,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/182565"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "permission_bluetooth": {
-        "__compat": {
-          "description": "<code>bluetooth</code> permission",
-          "support": {
-            "chrome": {
-              "version_added": "104"
             },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -224,7 +195,7 @@
       },
       "permission_camera": {
         "__compat": {
-          "description": "<code>camera</code> permission",
+          "description": "`camera` permission",
           "support": {
             "chrome": {
               "version_added": "64"
@@ -232,7 +203,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -248,6 +219,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -259,7 +233,7 @@
       },
       "permission_clipboard-read": {
         "__compat": {
-          "description": "<code>clipboard-read</code> permission",
+          "description": "`clipboard-read` permission",
           "support": {
             "chrome": {
               "version_added": "64"
@@ -283,7 +257,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -294,8 +269,11 @@
       },
       "permission_clipboard-write": {
         "__compat": {
-          "description": "<code>clipboard-write</code> permission",
+          "description": "`clipboard-write` permission",
           "spec_url": "https://w3c.github.io/clipboard-apis/#dom-permissionname-clipboard-write",
+          "tags": [
+            "web-features:async-clipboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -319,7 +297,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -330,7 +309,7 @@
       },
       "permission_compute-pressure": {
         "__compat": {
-          "description": "<code>compute-pressure</code> permission",
+          "description": "`compute-pressure` permission",
           "spec_url": "https://w3c.github.io/compute-pressure/#policy-control",
           "tags": [
             "web-features:compute-pressure"
@@ -358,7 +337,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -369,7 +349,7 @@
       },
       "permission_geolocation": {
         "__compat": {
-          "description": "<code>geolocation</code> permission",
+          "description": "`geolocation` permission",
           "support": {
             "chrome": {
               "version_added": "43"
@@ -393,6 +373,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -404,7 +387,7 @@
       },
       "permission_gyroscope": {
         "__compat": {
-          "description": "<code>gyroscope</code> permission",
+          "description": "`gyroscope` permission",
           "tags": [
             "web-features:gyroscope"
           ],
@@ -431,7 +414,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -442,13 +426,14 @@
       },
       "permission_local-fonts": {
         "__compat": {
-          "description": "<code>local-fonts</code> permission",
+          "description": "`local-fonts` permission",
           "support": {
             "chrome": {
               "version_added": "103"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://crbug.com/40840834"
             },
             "edge": "mirror",
             "firefox": {
@@ -468,7 +453,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -479,7 +465,7 @@
       },
       "permission_magnetometer": {
         "__compat": {
-          "description": "<code>magnetometer</code> permission",
+          "description": "`magnetometer` permission",
           "support": {
             "chrome": {
               "version_added": "62"
@@ -503,7 +489,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -514,7 +501,7 @@
       },
       "permission_microphone": {
         "__compat": {
-          "description": "<code>microphone</code> permission",
+          "description": "`microphone` permission",
           "support": {
             "chrome": {
               "version_added": "64"
@@ -522,7 +509,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -538,6 +525,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -549,7 +539,7 @@
       },
       "permission_midi": {
         "__compat": {
-          "description": "<code>midi</code> permission",
+          "description": "`midi` permission",
           "spec_url": "https://webaudio.github.io/web-midi-api/#permissions-integration",
           "tags": [
             "web-features:web-midi"
@@ -578,7 +568,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -589,7 +580,7 @@
       },
       "permission_notifications": {
         "__compat": {
-          "description": "<code>notifications</code> permission",
+          "description": "`notifications` permission",
           "support": {
             "chrome": {
               "version_added": "43"
@@ -597,7 +588,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "46"
+              "version_added": "46",
+              "notes": "Alias for the `push` permission (returns the same value)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -612,6 +604,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
               "version_added": false
             }
           },
@@ -624,7 +620,10 @@
       },
       "permission_payment-handler": {
         "__compat": {
-          "description": "<code>payment-handler</code> permission",
+          "description": "`payment-handler` permission",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -632,7 +631,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1465682"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -648,7 +648,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -659,7 +660,7 @@
       },
       "permission_persistent-storage": {
         "__compat": {
-          "description": "<code>persistent-storage</code> permission",
+          "description": "`persistent-storage` permission",
           "support": {
             "chrome": {
               "version_added": "71"
@@ -683,7 +684,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -694,7 +696,10 @@
       },
       "permission_push": {
         "__compat": {
-          "description": "<code>push</code> permission",
+          "description": "`push` permission",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -702,7 +707,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "46"
+              "version_added": "46",
+              "notes": "Alias for the `notifications` permission (returns the same value)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -718,6 +724,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -729,7 +738,7 @@
       },
       "permission_screen-wake-lock": {
         "__compat": {
-          "description": "<code>screen-wake-lock</code> permission",
+          "description": "`screen-wake-lock` permission",
           "spec_url": "https://w3c.github.io/screen-wake-lock/#the-screen-wake-lock-powerful-feature",
           "tags": [
             "web-features:screen-wake-lock"
@@ -757,7 +766,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -768,8 +778,11 @@
       },
       "permission_storage-access": {
         "__compat": {
-          "description": "<code>storage-access</code> permission",
+          "description": "`storage-access` permission",
           "spec_url": "https://privacycg.github.io/storage-access/#permissions-integration",
+          "tags": [
+            "web-features:storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "119"
@@ -797,7 +810,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -808,8 +822,11 @@
       },
       "permission_top-level-storage-access": {
         "__compat": {
-          "description": "<code>top-level-storage-access</code> permission",
+          "description": "`top-level-storage-access` permission",
           "spec_url": "https://privacycg.github.io/requestStorageAccessFor/#permissions-integration",
+          "tags": [
+            "web-features:storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -835,7 +852,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -846,8 +864,11 @@
       },
       "permission_window-management": {
         "__compat": {
-          "description": "<code>window-management</code> permission",
+          "description": "`window-management` permission",
           "spec_url": "https://w3c.github.io/window-management/#api-permission-api-integration",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "111"
@@ -871,7 +892,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -910,7 +932,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -950,7 +973,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -989,7 +1013,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1043,7 +1068,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PictureInPictureEvent.json b/api/PictureInPictureEvent.json
index b4051cad978f75..1dac3d05816f73 100644
--- a/api/PictureInPictureEvent.json
+++ b/api/PictureInPictureEvent.json
@@ -46,7 +46,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,7 +57,7 @@
       },
       "PictureInPictureEvent": {
         "__compat": {
-          "description": "<code>PictureInPictureEvent()</code> constructor",
+          "description": "`PictureInPictureEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PictureInPictureEvent/PictureInPictureEvent",
           "spec_url": "https://w3c.github.io/picture-in-picture/#dom-pictureinpictureevent-pictureinpictureevent",
           "tags": [
@@ -101,7 +102,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,7 +145,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PictureInPictureWindow.json b/api/PictureInPictureWindow.json
index 67cb9b8700a8a7..2922835803e88c 100644
--- a/api/PictureInPictureWindow.json
+++ b/api/PictureInPictureWindow.json
@@ -33,7 +33,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -74,7 +75,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,7 +87,7 @@
       },
       "resize_event": {
         "__compat": {
-          "description": "<code>resize</code> event",
+          "description": "`resize` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PictureInPictureWindow/resize_event",
           "spec_url": [
             "https://w3c.github.io/picture-in-picture/#eventdef-pictureinpicturewindow-resize",
@@ -120,7 +122,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,7 +165,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Plugin.json b/api/Plugin.json
index d161fc600b0a81..c3ef226a57bed2 100644
--- a/api/Plugin.json
+++ b/api/Plugin.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -71,7 +72,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -112,7 +114,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,7 +161,8 @@
             "webview_android": {
               "version_added": "≤37",
               "notes": "Starting with version 59, method parameters are required instead of optional."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -197,7 +201,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -238,7 +243,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -284,7 +290,8 @@
             "webview_android": {
               "version_added": "≤37",
               "notes": "Starting with version 59, method parameters are required instead of optional."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PluginArray.json b/api/PluginArray.json
index a07c32cd1bd287..d4af3433a9cb95 100644
--- a/api/PluginArray.json
+++ b/api/PluginArray.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
             "webview_android": {
               "version_added": "≤37",
               "notes": "Since WebView 59, method parameters are required instead of optional."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -115,7 +117,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +164,8 @@
             "webview_android": {
               "version_added": "≤37",
               "notes": "Since WebView 59, method parameters are required instead of optional."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -204,7 +208,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PointerEvent.json b/api/PointerEvent.json
index cb8d7237dee45b..834008be9e17e9 100644
--- a/api/PointerEvent.json
+++ b/api/PointerEvent.json
@@ -26,7 +26,7 @@
               "prefix": "MS",
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "See <a href='https://msdn.microsoft.com/library/dn304886'>MSDN Pointer events updates</a>."
+              "notes": "See [MSDN Pointer events updates](https://msdn.microsoft.com/library/dn304886)."
             }
           ],
           "oculus": "mirror",
@@ -37,7 +37,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,7 +48,7 @@
       },
       "PointerEvent": {
         "__compat": {
-          "description": "<code>PointerEvent()</code> constructor",
+          "description": "`PointerEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PointerEvent/PointerEvent",
           "spec_url": "https://w3c.github.io/pointerevents/#dom-pointerevent-constructor",
           "support": {
@@ -72,7 +73,7 @@
                 "prefix": "MS",
                 "version_added": "10",
                 "partial_implementation": true,
-                "notes": "See <a href='https://msdn.microsoft.com/library/dn304886'>MSDN Pointer events updates</a>."
+                "notes": "See [MSDN Pointer events updates](https://msdn.microsoft.com/library/dn304886)."
               }
             ],
             "oculus": "mirror",
@@ -83,13 +84,82 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "options_altitudeAngle_parameter": {
+          "__compat": {
+            "description": "`options.altitudeAngle` parameter",
+            "support": {
+              "chrome": {
+                "version_added": "86"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "131"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "preview"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "options_azimuthAngle_parameter": {
+          "__compat": {
+            "description": "`options.azimuthAngle` parameter",
+            "support": {
+              "chrome": {
+                "version_added": "86"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "131"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "preview"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "altitudeAngle": {
@@ -103,7 +173,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "131"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -113,14 +183,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -137,7 +208,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "131"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -147,14 +218,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -185,11 +257,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -219,11 +292,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -268,7 +342,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -306,7 +381,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -317,6 +393,8 @@
       },
       "persistentDeviceId": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PointerEvent/persistentDeviceId",
+          "spec_url": "https://w3c.github.io/pointerevents/#dom-pointerevent-persistentdeviceid",
           "support": {
             "chrome": {
               "version_added": "128"
@@ -338,7 +416,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -376,7 +455,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -421,7 +501,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -431,25 +512,25 @@
         },
         "fractional_coordinates": {
           "__compat": {
-            "description": "Fractional coordinates for <code>mouse</code>.",
+            "description": "Fractional coordinates for `mouse`.",
             "support": {
               "chrome": {
                 "version_added": "64",
                 "partial_implementation": true,
-                "notes": "<code>movementX</code> and <code>movementY</code> are not fractional, see <a href='https://crbug.com/802067'>bug 802067</a>."
+                "notes": "`movementX` and `movementY` are not fractional, see [bug 41364801](https://crbug.com/41364801)."
               },
               "chrome_android": "mirror",
               "edge": [
                 {
                   "version_added": "79",
                   "partial_implementation": true,
-                  "notes": "<code>movementX</code> and <code>movementY</code> are not fractional, see <a href='https://crbug.com/802067'>bug 802067</a>."
+                  "notes": "`movementX` and `movementY` are not fractional, see [bug 41364801](https://crbug.com/41364801)."
                 },
                 {
                   "version_added": "12",
                   "version_removed": "79",
                   "partial_implementation": true,
-                  "notes": "Only <code>clientX</code>, <code>clientY</code>, <code>pageX</code> and <code>pageY</code> are fractional."
+                  "notes": "Only `clientX`, `clientY`, `pageX` and `pageY` are fractional."
                 }
               ],
               "firefox": {
@@ -460,7 +541,7 @@
               "ie": {
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Only <code>clientX</code>, <code>clientY</code>, <code>pageX</code> and <code>pageY</code> are fractional."
+                "notes": "Only `clientX`, `clientY`, `pageX` and `pageY` are fractional."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -471,7 +552,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -517,7 +599,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -553,7 +636,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -591,7 +675,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -629,7 +714,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -667,7 +753,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -712,7 +799,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PopStateEvent.json b/api/PopStateEvent.json
index e40edf717552b4..1f2acd7281197a 100644
--- a/api/PopStateEvent.json
+++ b/api/PopStateEvent.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +42,7 @@
       },
       "PopStateEvent": {
         "__compat": {
-          "description": "<code>PopStateEvent()</code> constructor",
+          "description": "`PopStateEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PopStateEvent/PopStateEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-popstateevent-interface",
           "support": {
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,7 +102,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,7 +143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PositionSensorVRDevice.json b/api/PositionSensorVRDevice.json
index bd6a7ced5748e2..4768fcce9b09b6 100644
--- a/api/PositionSensorVRDevice.json
+++ b/api/PositionSensorVRDevice.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -146,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Presentation.json b/api/Presentation.json
index 8fe4bdf6507fa6..843e921d30cece 100644
--- a/api/Presentation.json
+++ b/api/Presentation.json
@@ -24,13 +24,16 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/149168"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/234081017"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -68,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +111,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PresentationAvailability.json b/api/PresentationAvailability.json
index e61555a702a329..e77f7880b93161 100644
--- a/api/PresentationAvailability.json
+++ b/api/PresentationAvailability.json
@@ -24,13 +24,16 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/149168"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/234081017"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +43,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "spec_url": "https://w3c.github.io/presentation-api/#dom-presentationavailability-onchange",
           "tags": [
             "web-features:presentation-api"
@@ -68,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +111,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PresentationConnection.json b/api/PresentationConnection.json
index 6b8926802d262b..e45a693e3a1314 100644
--- a/api/PresentationConnection.json
+++ b/api/PresentationConnection.json
@@ -24,13 +24,16 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/149168"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/234081017"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -68,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +111,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -118,7 +123,10 @@
       },
       "close_event": {
         "__compat": {
-          "description": "<code>close</code> event",
+          "description": "`close` event",
+          "tags": [
+            "web-features:presentation-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -142,7 +150,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -153,7 +162,10 @@
       },
       "connect_event": {
         "__compat": {
-          "description": "<code>connect</code> event",
+          "description": "`connect` event",
+          "tags": [
+            "web-features:presentation-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -177,7 +189,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -216,7 +229,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -227,7 +241,10 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
+          "tags": [
+            "web-features:presentation-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -251,7 +268,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -290,7 +308,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -329,7 +348,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -368,7 +388,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -379,7 +400,10 @@
       },
       "terminate_event": {
         "__compat": {
-          "description": "<code>terminate</code> event",
+          "description": "`terminate` event",
+          "tags": [
+            "web-features:presentation-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -403,7 +427,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -442,7 +467,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PresentationConnectionAvailableEvent.json b/api/PresentationConnectionAvailableEvent.json
index 184fe064fd568a..63877794f995ef 100644
--- a/api/PresentationConnectionAvailableEvent.json
+++ b/api/PresentationConnectionAvailableEvent.json
@@ -24,13 +24,16 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/149168"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/234081017"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +43,7 @@
       },
       "PresentationConnectionAvailableEvent": {
         "__compat": {
-          "description": "<code>PresentationConnectionAvailableEvent()</code> constructor",
+          "description": "`PresentationConnectionAvailableEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PresentationConnectionAvailableEvent/PresentationConnectionAvailableEvent",
           "spec_url": "https://w3c.github.io/presentation-api/#dom-presentationconnectionavailableevent-constructor",
           "tags": [
@@ -69,7 +72,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PresentationConnectionCloseEvent.json b/api/PresentationConnectionCloseEvent.json
index ff6edd503b905b..33773e6742d99b 100644
--- a/api/PresentationConnectionCloseEvent.json
+++ b/api/PresentationConnectionCloseEvent.json
@@ -24,13 +24,16 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/149168"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/234081017"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +43,7 @@
       },
       "PresentationConnectionCloseEvent": {
         "__compat": {
-          "description": "<code>PresentationConnectionCloseEvent()</code> constructor",
+          "description": "`PresentationConnectionCloseEvent()` constructor",
           "spec_url": "https://w3c.github.io/presentation-api/#dom-presentationconnectioncloseevent-constructor",
           "tags": [
             "web-features:presentation-api"
@@ -68,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,7 +149,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PresentationConnectionList.json b/api/PresentationConnectionList.json
index d16a7d735d9211..2d23947b3e6b4c 100644
--- a/api/PresentationConnectionList.json
+++ b/api/PresentationConnectionList.json
@@ -24,13 +24,16 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/149168"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/234081017"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +43,10 @@
       },
       "connectionavailable_event": {
         "__compat": {
-          "description": "<code>connectionavailable</code> event",
+          "description": "`connectionavailable` event",
+          "tags": [
+            "web-features:presentation-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -64,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -102,7 +109,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PresentationReceiver.json b/api/PresentationReceiver.json
index 8138a418dc800b..073460ce2ffe99 100644
--- a/api/PresentationReceiver.json
+++ b/api/PresentationReceiver.json
@@ -24,13 +24,16 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/149168"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/234081017"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -67,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PresentationRequest.json b/api/PresentationRequest.json
index e1217a82bb27db..0bcd2454318a25 100644
--- a/api/PresentationRequest.json
+++ b/api/PresentationRequest.json
@@ -24,13 +24,16 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/149168"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/234081017"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +43,7 @@
       },
       "PresentationRequest": {
         "__compat": {
-          "description": "<code>PresentationRequest()</code> constructor",
+          "description": "`PresentationRequest()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PresentationRequest/PresentationRequest",
           "spec_url": "https://w3c.github.io/presentation-api/#constructing-a-presentationrequest",
           "tags": [
@@ -69,7 +72,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -81,6 +85,9 @@
       "secure_context_required": {
         "__compat": {
           "description": "Secure context required",
+          "tags": [
+            "web-features:presentation-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -108,7 +115,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -119,7 +127,7 @@
       },
       "connectionavailable_event": {
         "__compat": {
-          "description": "<code>connectionavailable</code> event",
+          "description": "`connectionavailable` event",
           "spec_url": "https://w3c.github.io/presentation-api/#dom-presentationrequest-onconnectionavailable",
           "tags": [
             "web-features:presentation-api"
@@ -147,7 +155,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -186,7 +195,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -225,7 +235,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -264,7 +275,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PressureObserver.json b/api/PressureObserver.json
index 9d83be45997562..943587d991d3fa 100644
--- a/api/PressureObserver.json
+++ b/api/PressureObserver.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "PressureObserver": {
         "__compat": {
-          "description": "<code>PressureObserver()</code> constructor",
+          "description": "`PressureObserver()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PressureObserver/PressureObserver",
           "spec_url": "https://w3c.github.io/compute-pressure/#dom-pressureobserver-constructor",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -186,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -225,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -264,7 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/PressureRecord.json b/api/PressureRecord.json
index b798152cc73990..5a56811cff11a6 100644
--- a/api/PressureRecord.json
+++ b/api/PressureRecord.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -146,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -185,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ProcessingInstruction.json b/api/ProcessingInstruction.json
index ca556a1f1f807d..58ffdd3c1709fc 100644
--- a/api/ProcessingInstruction.json
+++ b/api/ProcessingInstruction.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/ProcessingInstruction",
         "spec_url": "https://dom.spec.whatwg.org/#interface-processinginstruction",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ProcessingInstruction/sheet",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-linkstyle-sheet",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ProcessingInstruction/target",
           "spec_url": "https://dom.spec.whatwg.org/#dom-processinginstruction-target",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -104,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Profiler.json b/api/Profiler.json
index 680501d8c057ef..a3b8721c3fd731 100644
--- a/api/Profiler.json
+++ b/api/Profiler.json
@@ -3,6 +3,9 @@
     "Profiler": {
       "__compat": {
         "spec_url": "https://wicg.github.io/js-self-profiling/#the-profiler-interface",
+        "tags": [
+          "web-features:profiler"
+        ],
         "support": {
           "chrome": {
             "version_added": "94"
@@ -10,7 +13,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1867361"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -34,8 +39,11 @@
       },
       "Profiler": {
         "__compat": {
-          "description": "<code>Profiler()</code> constructor",
+          "description": "`Profiler()` constructor",
           "spec_url": "https://wicg.github.io/js-self-profiling/#dom-profiler-constructor",
+          "tags": [
+            "web-features:profiler"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -57,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -69,6 +78,9 @@
       "sampleInterval": {
         "__compat": {
           "spec_url": "https://wicg.github.io/js-self-profiling/#dom-profiler-sampleinterval",
+          "tags": [
+            "web-features:profiler"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -90,7 +102,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -102,6 +115,9 @@
       "stop": {
         "__compat": {
           "spec_url": "https://wicg.github.io/js-self-profiling/#dom-profiler-stop",
+          "tags": [
+            "web-features:profiler"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -123,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -135,6 +152,9 @@
       "stopped": {
         "__compat": {
           "spec_url": "https://wicg.github.io/js-self-profiling/#dom-profiler-stopped",
+          "tags": [
+            "web-features:profiler"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -156,7 +176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ProgressEvent.json b/api/ProgressEvent.json
index 388073188d0435..fbbe36d28a67da 100644
--- a/api/ProgressEvent.json
+++ b/api/ProgressEvent.json
@@ -39,7 +39,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,9 +50,12 @@
       },
       "ProgressEvent": {
         "__compat": {
-          "description": "<code>ProgressEvent()</code> constructor",
+          "description": "`ProgressEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ProgressEvent/ProgressEvent",
           "spec_url": "https://xhr.spec.whatwg.org/#dom-progressevent-progressevent",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -82,7 +86,47 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:xhr"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "47",
+              "partial_implementation": true,
+              "notes": "Available in dedicated workers and shared workers, not available in service workers. See [bug 332663431](https://crbug.com/332663431)."
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "54"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "10"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +172,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,7 +221,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,7 +270,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PromiseRejectionEvent.json b/api/PromiseRejectionEvent.json
index a7d88aa2983203..7765654ca490f9 100644
--- a/api/PromiseRejectionEvent.json
+++ b/api/PromiseRejectionEvent.json
@@ -30,7 +30,8 @@
             "version_added": "11.3"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,7 @@
       },
       "PromiseRejectionEvent": {
         "__compat": {
-          "description": "<code>PromiseRejectionEvent()</code> constructor",
+          "description": "`PromiseRejectionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PromiseRejectionEvent/PromiseRejectionEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#unhandled-promise-rejections:dom-event-constructor",
           "support": {
@@ -69,7 +70,8 @@
               "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,7 +110,8 @@
               "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,7 +150,8 @@
               "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PublicKeyCredential.json b/api/PublicKeyCredential.json
index b69cf36a6e7cef..ecbcee8188a956 100644
--- a/api/PublicKeyCredential.json
+++ b/api/PublicKeyCredential.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential",
         "spec_url": "https://w3c.github.io/webauthn/#iface-pkcredential",
+        "tags": [
+          "web-features:webauthn"
+        ],
         "support": {
           "chrome": {
             "version_added": "67"
@@ -42,7 +45,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,6 +58,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/authenticatorAttachment",
           "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-authenticatorattachment",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "98"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "getClientCapabilities_static": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webauthn/#sctn-getClientCapabilities",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/getClientExtensionResults",
           "spec_url": "https://w3c.github.io/webauthn/#ref-for-dom-publickeycredential-getclientextensionresults",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -161,7 +176,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -172,9 +188,12 @@
       },
       "isConditionalMediationAvailable_static": {
         "__compat": {
-          "description": "<code>isConditionalMediationAvailable()</code> static method",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/isConditionalMediationAvailable",
+          "description": "`isConditionalMediationAvailable()` static method",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/isConditionalMediationAvailable_static",
           "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-isconditionalmediationavailable",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -198,7 +217,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -209,9 +229,12 @@
       },
       "isUserVerifyingPlatformAuthenticatorAvailable_static": {
         "__compat": {
-          "description": "<code>isUserVerifyingPlatformAuthenticatorAvailable()</code> static method",
+          "description": "`isUserVerifyingPlatformAuthenticatorAvailable()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/isUserVerifyingPlatformAuthenticatorAvailable_static",
           "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-isuserverifyingplatformauthenticatoravailable",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -250,7 +273,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,12 +285,15 @@
       },
       "parseCreationOptionsFromJSON_static": {
         "__compat": {
-          "description": "<code>parseCreationOptionsFromJSON()</code> static method",
+          "description": "`parseCreationOptionsFromJSON()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/parseCreationOptionsFromJSON_static",
           "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-parsecreationoptionsfromjson",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "129"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -285,10 +312,13 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -296,12 +326,15 @@
       },
       "parseRequestOptionsFromJSON_static": {
         "__compat": {
-          "description": "<code>parseRequestOptionsFromJSON()</code> static method",
+          "description": "`parseRequestOptionsFromJSON()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/parseRequestOptionsFromJSON_static",
           "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-parserequestoptionsfromjson",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "129"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -320,10 +353,13 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -333,6 +369,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/rawId",
           "spec_url": "https://w3c.github.io/webauthn/#ref-for-dom-publickeycredential-rawid",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -371,7 +410,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -384,6 +424,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/response",
           "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-response",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -422,7 +465,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -431,13 +475,130 @@
           }
         }
       },
+      "signalAllAcceptedCredentials_static": {
+        "__compat": {
+          "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-signalallacceptedcredentials",
+          "support": {
+            "chrome": {
+              "version_added": "132"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": {
+              "version_added": false
+            },
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "signalCurrentUserDetails_static": {
+        "__compat": {
+          "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-signalcurrentuserdetails",
+          "support": {
+            "chrome": {
+              "version_added": "132"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": {
+              "version_added": false
+            },
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "signalUnknownCredential_static": {
+        "__compat": {
+          "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-signalunknowncredential",
+          "support": {
+            "chrome": {
+              "version_added": "132"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": {
+              "version_added": false
+            },
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "toJSON": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/toJSON",
           "spec_url": "https://w3c.github.io/webauthn/#dom-publickeycredential-tojson",
+          "tags": [
+            "web-features:webauthn"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "129"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -456,10 +617,13 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/PushEvent.json b/api/PushEvent.json
index b67147b9e6809d..6ad6ef0213ee60 100644
--- a/api/PushEvent.json
+++ b/api/PushEvent.json
@@ -41,8 +41,11 @@
           },
           "samsunginternet_android": "mirror",
           "webview_android": {
+            "version_added": false
+          },
+          "webview_ios": {
             "version_added": false,
-            "impl_url": "https://crbug.com/421921"
+            "notes": "Notifications are supported in web apps saved to the home screen."
           }
         },
         "status": {
@@ -53,7 +56,7 @@
       },
       "PushEvent": {
         "__compat": {
-          "description": "<code>PushEvent()</code> constructor",
+          "description": "`PushEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushEvent/PushEvent",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushevent-constructor",
           "tags": [
@@ -94,6 +97,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -141,6 +148,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
diff --git a/api/PushManager.json b/api/PushManager.json
index cbe41dfba7e536..931548ca8e2cff 100644
--- a/api/PushManager.json
+++ b/api/PushManager.json
@@ -37,8 +37,11 @@
           },
           "samsunginternet_android": "mirror",
           "webview_android": {
+            "version_added": false
+          },
+          "webview_ios": {
             "version_added": false,
-            "impl_url": "https://crbug.com/421921"
+            "notes": "Notifications are supported in web apps saved to the home screen."
           }
         },
         "status": {
@@ -85,6 +88,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -124,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +179,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -210,7 +222,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,7 +262,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,23 +276,26 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushManager/subscribe",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushmanager-subscribe",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": "42",
-              "notes": "The <code>options</code> parameter with a <code>applicationServerKey</code> value is required."
+              "notes": "The `options` parameter with a `applicationServerKey` value is required."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "17",
-              "notes": "The <code>options</code> parameter with a <code>applicationServerKey</code> value is required."
+              "notes": "The `options` parameter with a `applicationServerKey` value is required."
             },
             "firefox": {
               "version_added": "44",
-              "notes": "From Firefox 72 onwards, can only be called in response to a user gesture such as a <code>click</code> event."
+              "notes": "From Firefox 72 onwards, can only be called in response to a user gesture such as a `click` event."
             },
             "firefox_android": {
               "version_added": "48",
-              "notes": "From Firefox Android 79 onwards, can only be called in response to a user gesture such as a <code>click</code> event."
+              "notes": "From Firefox Android 79 onwards, can only be called in response to a user gesture such as a `click` event."
             },
             "ie": {
               "version_added": false
@@ -299,6 +316,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -310,9 +331,12 @@
       },
       "supportedContentEncodings_static": {
         "__compat": {
-          "description": "<code>supportedContentEncodings</code> static property",
+          "description": "`supportedContentEncodings` static property",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushManager/supportedContentEncodings_static",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushmanager-supportedcontentencodings",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -322,7 +346,7 @@
               "version_added": "17"
             },
             "firefox": {
-              "version_added": false
+              "version_added": "134"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -344,6 +368,10 @@
             },
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -383,7 +411,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/PushMessageData.json b/api/PushMessageData.json
index ee14a89313afd7..30ae3d4ef0691f 100644
--- a/api/PushMessageData.json
+++ b/api/PushMessageData.json
@@ -37,8 +37,11 @@
           },
           "samsunginternet_android": "mirror",
           "webview_android": {
+            "version_added": false
+          },
+          "webview_ios": {
             "version_added": false,
-            "impl_url": "https://crbug.com/421921"
+            "notes": "Notifications are supported in web apps saved to the home screen."
           }
         },
         "status": {
@@ -85,6 +88,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -132,6 +139,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -145,9 +156,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushMessageData/bytes",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushmessagedata-bytes",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "132"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -166,7 +180,12 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -213,6 +232,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -260,6 +283,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
diff --git a/api/PushSubscription.json b/api/PushSubscription.json
index b7f6442cfe9135..3073ebb2167394 100644
--- a/api/PushSubscription.json
+++ b/api/PushSubscription.json
@@ -37,8 +37,11 @@
           },
           "samsunginternet_android": "mirror",
           "webview_android": {
+            "version_added": false
+          },
+          "webview_ios": {
             "version_added": false,
-            "impl_url": "https://crbug.com/421921"
+            "notes": "Notifications are supported in web apps saved to the home screen."
           }
         },
         "status": {
@@ -85,6 +88,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -98,6 +105,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushSubscription/expirationTime",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscription-expirationtime",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -127,6 +137,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -138,7 +152,7 @@
       },
       "getKey": {
         "__compat": {
-          "description": "<code>getKey()</code>",
+          "description": "`getKey()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushSubscription/getKey",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscription-getkey",
           "tags": [
@@ -175,6 +189,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -188,6 +206,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushSubscription/options",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscription-options",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -219,6 +240,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -256,7 +281,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -267,7 +293,7 @@
       },
       "toJSON": {
         "__compat": {
-          "description": "<code>toJSON()</code>",
+          "description": "`toJSON()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushSubscription/toJSON",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscription-tojson",
           "tags": [
@@ -306,6 +332,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -317,7 +347,7 @@
       },
       "unsubscribe": {
         "__compat": {
-          "description": "<code>unsubscribe()</code>",
+          "description": "`unsubscribe()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushSubscription/unsubscribe",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscription-unsubscribe",
           "tags": [
@@ -356,6 +386,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
diff --git a/api/PushSubscriptionChangeEvent.json b/api/PushSubscriptionChangeEvent.json
index eb4e9b4da66fce..99ae1db9a93ae0 100644
--- a/api/PushSubscriptionChangeEvent.json
+++ b/api/PushSubscriptionChangeEvent.json
@@ -3,6 +3,9 @@
     "PushSubscriptionChangeEvent": {
       "__compat": {
         "spec_url": "https://w3c.github.io/push-api/#pushsubscriptionchangeevent-interface",
+        "tags": [
+          "web-features:push"
+        ],
         "support": {
           "chrome": {
             "version_added": false,
@@ -15,7 +18,7 @@
           },
           "firefox": {
             "version_added": false,
-            "notes": "The <code>pushsubscriptionchange</code> event is fired but does not have the <code>oldSubscription</code> and <code>newSubscription</code> properties. See <a href='https://bugzil.la/1497429'>bug 1497429</a>."
+            "notes": "The `pushsubscriptionchange` event is fired but does not have the `oldSubscription` and `newSubscription` properties. See [bug 1497429](https://bugzil.la/1497429)."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -33,7 +36,11 @@
             "notes": "Notifications are supported in web apps saved to the home screen."
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false,
+            "notes": "Notifications are supported in web apps saved to the home screen."
+          }
         },
         "status": {
           "experimental": false,
@@ -43,8 +50,11 @@
       },
       "PushSubscriptionChangeEvent": {
         "__compat": {
-          "description": "<code>PushSubscriptionChangeEvent()</code> constructor",
+          "description": "`PushSubscriptionChangeEvent()` constructor",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscriptionchangeevent-constructor",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -72,7 +82,11 @@
               "notes": "Notifications are supported in web apps saved to the home screen."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
+            }
           },
           "status": {
             "experimental": true,
@@ -84,6 +98,9 @@
       "newSubscription": {
         "__compat": {
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscriptionchangeevent-newsubscription",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -112,7 +129,11 @@
               "notes": "Notifications are supported in web apps saved to the home screen."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
+            }
           },
           "status": {
             "experimental": false,
@@ -124,6 +145,9 @@
       "oldSubscription": {
         "__compat": {
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscriptionchangeevent-oldsubscription",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -152,7 +176,11 @@
               "notes": "Notifications are supported in web apps saved to the home screen."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/PushSubscriptionOptions.json b/api/PushSubscriptionOptions.json
index 31dbb9e0542a3f..935098fffda0ab 100644
--- a/api/PushSubscriptionOptions.json
+++ b/api/PushSubscriptionOptions.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushSubscriptionOptions",
         "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscriptionoptions",
+        "tags": [
+          "web-features:push"
+        ],
         "support": {
           "chrome": {
             "version_added": "54"
@@ -34,8 +37,11 @@
           },
           "samsunginternet_android": "mirror",
           "webview_android": {
+            "version_added": false
+          },
+          "webview_ios": {
             "version_added": false,
-            "impl_url": "https://crbug.com/421921"
+            "notes": "Notifications are supported in web apps saved to the home screen."
           }
         },
         "status": {
@@ -48,6 +54,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushSubscriptionOptions/applicationServerKey",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscriptionoptions-applicationserverkey",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -79,6 +88,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -92,6 +105,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PushSubscriptionOptions/userVisibleOnly",
           "spec_url": "https://w3c.github.io/push-api/#dom-pushsubscriptionoptions-uservisibleonly",
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -121,6 +137,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
diff --git a/api/RGBColor.json b/api/RGBColor.json
index 1a9f0705fad327..b996d19f504628 100644
--- a/api/RGBColor.json
+++ b/api/RGBColor.json
@@ -27,7 +27,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -98,7 +100,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,7 +137,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCCertificate.json b/api/RTCCertificate.json
index e156c44abd5bf2..dfcfe7a1efa52f 100644
--- a/api/RTCCertificate.json
+++ b/api/RTCCertificate.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCCertificate",
         "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtccertificate",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "49"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCCertificate/expires",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtccertificate-expires",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCCertificate/getFingerprints",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtccertificate-getfingerprints",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCDTMFSender.json b/api/RTCDTMFSender.json
index 4f6f2fe56d94d7..82212103ddebe3 100644
--- a/api/RTCDTMFSender.json
+++ b/api/RTCDTMFSender.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFSender",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcdtmfsender",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "27"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFSender/canInsertDTMF",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdtmfsender-caninsertdtmf",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "27"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFSender/insertDTMF",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-RTCDTMFSender-insertDTMF",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "27"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFSender/toneBuffer",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-RTCDTMFSender-tonebuffer",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "27"
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,9 +153,12 @@
       },
       "tonechange_event": {
         "__compat": {
-          "description": "<code>tonechange</code> event",
+          "description": "`tonechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFSender/tonechange_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#event-RTCDTMFSender-tonechange",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "27"
@@ -161,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCDTMFToneChangeEvent.json b/api/RTCDTMFToneChangeEvent.json
index 50ce4860b1e478..2bd963249ba4ba 100644
--- a/api/RTCDTMFToneChangeEvent.json
+++ b/api/RTCDTMFToneChangeEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFToneChangeEvent",
         "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdtmftonechangeevent",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "27"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,9 +41,12 @@
       },
       "RTCDTMFToneChangeEvent": {
         "__compat": {
-          "description": "<code>RTCDTMFToneChangeEvent()</code> constructor",
+          "description": "`RTCDTMFToneChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFToneChangeEvent/RTCDTMFToneChangeEvent",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdtmftonechangeevent-constructor",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "27"
@@ -63,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -76,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDTMFToneChangeEvent/tone",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdtmftonechangeevent-tone",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "27"
@@ -99,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCDataChannel.json b/api/RTCDataChannel.json
index 13c9d0b452b501..54f86867fafaa7 100644
--- a/api/RTCDataChannel.json
+++ b/api/RTCDataChannel.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/binaryType",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannel-binarytype",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -65,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,7 +80,10 @@
         },
         "arraybuffer_value": {
           "__compat": {
-            "description": "<code>ArrayBuffer</code> value",
+            "description": "`ArrayBuffer` value",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -99,7 +107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,11 +119,13 @@
         },
         "blob_value": {
           "__compat": {
-            "description": "<code>Blob</code> value",
+            "description": "`Blob` value",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
-                "version_added": false,
-                "impl_url": "https://crbug.com/webrtc/2276"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -135,7 +146,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -149,6 +161,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/bufferedAmount",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannel-bufferedamount",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -172,7 +187,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -183,16 +199,19 @@
       },
       "bufferedamountlow_event": {
         "__compat": {
-          "description": "<code>bufferedamountlow</code> event",
+          "description": "`bufferedamountlow` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/bufferedamountlow_event",
           "spec_url": [
             "https://w3c.github.io/webrtc-pc/#event-datachannel-bufferedamountlow",
             "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-onbufferedamountlow"
           ],
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "57",
-              "notes": "The default for <code>rtcpMuxPolicy</code> is <code>require</code>."
+              "notes": "The default for `rtcpMuxPolicy` is `require`."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -211,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,6 +244,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/bufferedAmountLowThreshold",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-bufferedamountlowthreshold",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -245,7 +268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -258,6 +282,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-close",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -281,7 +308,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -292,12 +320,15 @@
       },
       "close_event": {
         "__compat": {
-          "description": "<code>close</code> event",
+          "description": "`close` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close_event",
           "spec_url": [
             "https://w3c.github.io/webrtc-pc/#event-datachannel-close",
             "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-onclose"
           ],
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -321,7 +352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -332,12 +364,15 @@
       },
       "closing_event": {
         "__compat": {
-          "description": "<code>closing</code> event",
+          "description": "`closing` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/closing_event",
           "spec_url": [
             "https://w3c.github.io/webrtc-pc/#event-datachannel-closing",
             "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-onclosing"
           ],
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -359,7 +394,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -370,12 +406,15 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/error_event",
           "spec_url": [
             "https://w3c.github.io/webrtc-pc/#event-datachannel-error",
             "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-onerror"
           ],
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -399,7 +438,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -412,6 +452,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/id",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-id",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -435,7 +478,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -448,6 +492,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/label",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannel-label",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -471,7 +518,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -484,6 +532,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/maxPacketLifeTime",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannel-maxpacketlifetime",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -505,7 +556,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -518,6 +570,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/maxRetransmits",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannel-maxretransmits",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -539,7 +594,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -550,12 +606,15 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/message_event",
           "spec_url": [
             "https://w3c.github.io/webrtc-pc/#event-datachannel-message",
             "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-onmessage"
           ],
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -579,7 +638,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -592,6 +652,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/negotiated",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannel-negotiated",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -613,7 +676,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -624,12 +688,15 @@
       },
       "open_event": {
         "__compat": {
-          "description": "<code>open</code> event",
+          "description": "`open` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/open_event",
           "spec_url": [
             "https://w3c.github.io/webrtc-pc/#event-datachannel-open",
             "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-onopen"
           ],
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -653,7 +720,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -666,6 +734,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/ordered",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannel-ordered",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -689,7 +760,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -722,7 +794,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -735,6 +808,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/protocol",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannel-protocol",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -758,7 +834,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -771,6 +848,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/readyState",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannel-readystate",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -794,7 +874,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -829,7 +910,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -841,6 +923,9 @@
       "sctp_sdp_21": {
         "__compat": {
           "description": "Support for sctp-sdp-21 format",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -862,7 +947,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -875,6 +961,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannel/send",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel-send",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -898,7 +987,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -911,10 +1001,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Web_Workers_API/Transferable_objects",
           "spec_url": "https://w3c.github.io/webrtc-extensions/#rtcdatachannel-extensions",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
-              "version_added": false,
-              "impl_url": "https://crbug.com/1244165"
+              "version_added": "130"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -934,7 +1026,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCDataChannelEvent.json b/api/RTCDataChannelEvent.json
index e22a358dae84e8..27f8da15727cac 100644
--- a/api/RTCDataChannelEvent.json
+++ b/api/RTCDataChannelEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannelEvent",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcdatachannelevent",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "24"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,9 +45,12 @@
       },
       "RTCDataChannelEvent": {
         "__compat": {
-          "description": "<code>RTCDataChannelEvent()</code> constructor",
+          "description": "`RTCDataChannelEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannelEvent/RTCDataChannelEvent",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdatachannelevent-constructor",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -69,7 +76,8 @@
             "samsunginternet_android": {
               "version_added": "7.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -82,6 +90,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDataChannelEvent/channel",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-datachannelevent-channel",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -109,7 +120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCDtlsTransport.json b/api/RTCDtlsTransport.json
index 4f8215535f6cb0..2fa9893dc1d1cd 100644
--- a/api/RTCDtlsTransport.json
+++ b/api/RTCDtlsTransport.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDtlsTransport",
         "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdtlstransport",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "72"
@@ -29,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,8 +43,11 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDtlsTransport/error_event",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
@@ -66,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,6 +86,9 @@
       "getRemoteCertificates": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdtlstransport-getremotecertificates",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
@@ -103,7 +114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,6 +128,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDtlsTransport/iceTransport",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdtlstransport-icetransport",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
@@ -148,7 +163,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,6 +177,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCDtlsTransport/state",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcdtlstransport-state",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -197,7 +217,10 @@
       },
       "statechange_event": {
         "__compat": {
-          "description": "<code>statechange</code> event",
+          "description": "`statechange` event",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
@@ -230,7 +253,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCEncodedAudioFrame.json b/api/RTCEncodedAudioFrame.json
index 40fec2cb9904db..659e2532c6c057 100644
--- a/api/RTCEncodedAudioFrame.json
+++ b/api/RTCEncodedAudioFrame.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,8 +39,11 @@
       },
       "RTCEncodedAudioFrame": {
         "__compat": {
-          "description": "<code>RTCEncodedAudioFrame()</code> constructor",
+          "description": "`RTCEncodedAudioFrame()` constructor",
           "spec_url": "https://w3c.github.io/webrtc-encoded-transform/#dom-rtcencodedaudioframe-constructor",
+          "tags": [
+            "web-features:webrtc-encoded-transform"
+          ],
           "support": {
             "chrome": {
               "version_added": "127"
@@ -61,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -98,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCEncodedVideoFrame.json b/api/RTCEncodedVideoFrame.json
index d003d2a493094e..4d9af1ff9f035f 100644
--- a/api/RTCEncodedVideoFrame.json
+++ b/api/RTCEncodedVideoFrame.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,8 +39,11 @@
       },
       "RTCEncodedVideoFrame": {
         "__compat": {
-          "description": "<code>RTCEncodedVideoFrame()</code> constructor",
+          "description": "`RTCEncodedVideoFrame()` constructor",
           "spec_url": "https://w3c.github.io/webrtc-encoded-transform/#dom-rtcencodedvideoframe-constructor",
+          "tags": [
+            "web-features:webrtc-encoded-transform"
+          ],
           "support": {
             "chrome": {
               "version_added": "127"
@@ -61,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -98,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -205,7 +213,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCError.json b/api/RTCError.json
index 23ef257f9586bf..d128a18d2aa0bc 100644
--- a/api/RTCError.json
+++ b/api/RTCError.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCError",
         "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerror",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "74"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,8 +41,11 @@
       },
       "RTCError": {
         "__compat": {
-          "description": "<code>RTCError()</code> constructor",
+          "description": "`RTCError()` constructor",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerror-constructor",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCError/errorDetail",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerror-errordetail",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,7 +143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,6 +157,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCError/receivedAlert",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerror-receivedalert",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -167,7 +183,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,6 +197,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCError/sctpCauseCode",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerror-sctpcausecode",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -203,7 +223,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -216,6 +237,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCError/sdpLineNumber",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerror-sdplinenumber",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -239,7 +263,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -252,6 +277,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCError/sentAlert",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerror-sentalert",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -275,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCErrorEvent.json b/api/RTCErrorEvent.json
index 989f83b5ef54b6..b15b28a8a486b9 100644
--- a/api/RTCErrorEvent.json
+++ b/api/RTCErrorEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCErrorEvent",
         "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerrorevent",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "74"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,8 +41,11 @@
       },
       "RTCErrorEvent": {
         "__compat": {
-          "description": "<code>RTCErrorEvent()</code> constructor",
+          "description": "`RTCErrorEvent()` constructor",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerrorevent-constructor",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,6 +81,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCErrorEvent/error",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcerrorevent-error",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -96,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCIceCandidate.json b/api/RTCIceCandidate.json
index 3ed07f5d234a09..80e086bf61e157 100644
--- a/api/RTCIceCandidate.json
+++ b/api/RTCIceCandidate.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcicecandidate-interface",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "23"
@@ -41,7 +44,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -51,9 +55,12 @@
       },
       "RTCIceCandidate": {
         "__compat": {
-          "description": "<code>RTCIceCandidate()</code> constructor",
+          "description": "`RTCIceCandidate()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/RTCIceCandidate",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-constructor",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -65,23 +72,23 @@
             "firefox": [
               {
                 "version_added": "44",
-                "notes": "Before Firefox 68, the constructor's <code>candidateInfo</code> parameter is required and the <code>candidateInfo</code> object must have a <code>candidate</code> property."
+                "notes": "Before Firefox 68, the constructor's `candidateInfo` parameter is required and the `candidateInfo` object must have a `candidate` property."
               },
               {
                 "prefix": "moz",
                 "version_added": "22",
-                "notes": "Before Firefox 68, the constructor's <code>candidateInfo</code> parameter is required and the <code>candidateInfo</code> object must have a <code>candidate</code> property."
+                "notes": "Before Firefox 68, the constructor's `candidateInfo` parameter is required and the `candidateInfo` object must have a `candidate` property."
               }
             ],
             "firefox_android": [
               {
                 "version_added": "44",
-                "notes": "Before Firefox 68, the constructor's <code>candidateInfo</code> parameter is required and the <code>candidateInfo</code> object must have a <code>candidate</code> property."
+                "notes": "Before Firefox 68, the constructor's `candidateInfo` parameter is required and the `candidateInfo` object must have a `candidate` property."
               },
               {
                 "prefix": "moz",
                 "version_added": "24",
-                "notes": "Before Firefox 68, the constructor's <code>candidateInfo</code> parameter is required and the <code>candidateInfo</code> object must have a <code>candidate</code> property."
+                "notes": "Before Firefox 68, the constructor's `candidateInfo` parameter is required and the `candidateInfo` object must have a `candidate` property."
               }
             ],
             "ie": {
@@ -95,7 +102,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +116,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/address",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-address",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -129,7 +140,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,6 +154,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/candidate",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-candidate",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -169,7 +184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -182,6 +198,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/component",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-component",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -203,7 +222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -216,6 +236,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/foundation",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-foundation",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -237,7 +260,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -250,6 +274,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/port",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-port",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -271,7 +298,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -284,6 +312,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/priority",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-priority",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -305,7 +336,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -318,6 +350,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/protocol",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-protocol",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -339,7 +374,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -352,6 +388,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/relatedAddress",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-relatedaddress",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -373,7 +412,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -386,6 +426,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/relatedPort",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-relatedport",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -407,7 +450,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -419,6 +463,9 @@
       "relayProtocol": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-relayprotocol",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "124"
@@ -427,7 +474,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "See <a href='https://bugzil.la/1886013'>bug 1886013</a>."
+              "notes": "See [bug 1886013](https://bugzil.la/1886013)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -441,7 +488,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -454,6 +502,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/sdpMid",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-sdpmid",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -481,7 +532,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -494,6 +546,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/sdpMLineIndex",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-sdpmlineindex",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -521,7 +576,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -534,6 +590,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/tcpType",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-tcptype",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -555,7 +614,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -568,6 +628,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/toJSON",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-tojson",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -591,7 +654,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -604,6 +668,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/type",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-type",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -625,7 +692,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -637,6 +705,9 @@
       "url": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-url",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "124"
@@ -645,7 +716,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "notes": "See <a href='https://bugzil.la/1886013'>bug 1886013</a>."
+              "notes": "See [bug 1886013](https://bugzil.la/1886013)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -659,7 +730,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -672,6 +744,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/usernameFragment",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicecandidate-usernamefragment",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -694,7 +769,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCIceTransport.json b/api/RTCIceTransport.json
index b38768d045842c..9a0496a0a7fd8d 100644
--- a/api/RTCIceTransport.json
+++ b/api/RTCIceTransport.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport",
         "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicetransport",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "75"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/gatheringState",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-icetransport-gatheringstate",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,12 +79,15 @@
       },
       "gatheringstatechange_event": {
         "__compat": {
-          "description": "<code>gatheringstatechange</code> event",
+          "description": "`gatheringstatechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/gatheringstatechange_event",
           "spec_url": [
             "https://w3c.github.io/webrtc-pc/#event-icetransport-gatheringstatechange",
             "https://w3c.github.io/webrtc-pc/#dom-rtcicetransport-ongatheringstatechange"
           ],
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/getLocalCandidates",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicetransport-getlocalcandidates",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -132,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -145,6 +161,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/getLocalParameters",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicetransport-getlocalparameters",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -166,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -179,6 +199,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/getRemoteCandidates",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicetransport-getremotecandidates",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -202,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,6 +239,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/getRemoteParameters",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicetransport-getremoteparameters",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -238,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -251,6 +279,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/getSelectedCandidatePair",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcicetransport-getselectedcandidatepair",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -281,7 +312,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -294,6 +326,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/role",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-icetransport-role",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -317,7 +352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -328,12 +364,15 @@
       },
       "selectedcandidatepairchange_event": {
         "__compat": {
-          "description": "<code>selectedcandidatepairchange</code> event",
+          "description": "`selectedcandidatepairchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/selectedcandidatepairchange_event",
           "spec_url": [
             "https://w3c.github.io/webrtc-pc/#event-icetransport-selectedcandidatepairchange",
             "https://w3c.github.io/webrtc-pc/#dom-rtcicetransport-onselectedcandidatepairchange"
           ],
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -355,7 +394,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -368,6 +408,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/state",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-icetransport-state",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -391,7 +434,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -402,12 +446,15 @@
       },
       "statechange_event": {
         "__compat": {
-          "description": "<code>statechange</code> event",
+          "description": "`statechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCIceTransport/statechange_event",
           "spec_url": [
             "https://w3c.github.io/webrtc-pc/#event-icetransport-statechange",
             "https://w3c.github.io/webrtc-pc/#dom-rtcicetransport-onstatechange"
           ],
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -429,7 +476,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCIdentityAssertion.json b/api/RTCIdentityAssertion.json
index abacdc273271b6..594707f8c49f96 100644
--- a/api/RTCIdentityAssertion.json
+++ b/api/RTCIdentityAssertion.json
@@ -13,7 +13,7 @@
           "firefox": {
             "version_added": "40",
             "partial_implementation": true,
-            "notes": "The <code>RTCIdentityAssertion</code> interface itself is not present, but an object with the same properties is used"
+            "notes": "The `RTCIdentityAssertion` interface itself is not present, but an object with the same properties is used"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -92,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/RTCPeerConnection.json b/api/RTCPeerConnection.json
index 2f6ad059da01fa..f29010adc6db27 100644
--- a/api/RTCPeerConnection.json
+++ b/api/RTCPeerConnection.json
@@ -56,7 +56,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,14 +67,17 @@
       },
       "RTCPeerConnection": {
         "__compat": {
-          "description": "<code>RTCPeerConnection()</code> constructor",
+          "description": "`RTCPeerConnection()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/RTCPeerConnection",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": [
               {
                 "version_added": "56",
-                "notes": "Before Chrome 63, the default value for the <code>configuration.rtcpMuxPolicy</code> parameter is <code>&quot;negotiate&quot;</code> instead of <code>&quot;required&quot;</code>."
+                "notes": "Before Chrome 63, the default value for the `configuration.rtcpMuxPolicy` parameter is `&quot;negotiate&quot;` instead of `&quot;required&quot;`."
               },
               {
                 "prefix": "webkit",
@@ -113,22 +117,14 @@
             },
             "oculus": "mirror",
             "opera": "mirror",
-            "opera_android": [
-              {
-                "version_added": "43",
-                "notes": "Before Opera Android 46, the default value for the <code>configuration.rtcpMuxPolicy</code> parameter is <code>&quot;negotiate&quot;</code> instead of <code>&quot;required&quot;</code>."
-              },
-              {
-                "prefix": "webkit",
-                "version_added": "14"
-              }
-            ],
+            "opera_android": "mirror",
             "safari": {
               "version_added": "11"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,8 +134,11 @@
         },
         "configuration_bundlePolicy_parameter": {
           "__compat": {
-            "description": "<code>configuration.bundlePolicy</code> parameter",
+            "description": "`configuration.bundlePolicy` parameter",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcconfiguration-bundlepolicy",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "42"
@@ -165,7 +164,8 @@
               "samsunginternet_android": {
                 "version_added": "7.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -176,8 +176,11 @@
         },
         "configuration_certificates_parameter": {
           "__compat": {
-            "description": "<code>configuration.certificates</code> parameter",
+            "description": "`configuration.certificates` parameter",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcconfiguration-certificates",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -203,7 +206,8 @@
               "samsunginternet_android": {
                 "version_added": "7.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -214,7 +218,10 @@
         },
         "configuration_iceCandidatePoolSize_parameter": {
           "__compat": {
-            "description": "<code>configuration.iceCandidatePoolSize</code> parameter",
+            "description": "`configuration.iceCandidatePoolSize` parameter",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -242,7 +249,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -253,8 +261,11 @@
         },
         "configuration_iceServers_parameter": {
           "__compat": {
-            "description": "<code>configuration.iceServers</code> parameter",
+            "description": "`configuration.iceServers` parameter",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcconfiguration-iceservers",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -282,7 +293,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -292,8 +304,11 @@
           },
           "credential_parameter": {
             "__compat": {
-              "description": "<code>configuration.iceServers.credential</code> parameter",
+              "description": "`configuration.iceServers.credential` parameter",
               "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtciceserver-credential",
+              "tags": [
+                "web-features:webrtc"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "23"
@@ -323,7 +338,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -334,7 +350,7 @@
           },
           "credentialType_parameter": {
             "__compat": {
-              "description": "<code>configuration.iceServers.credentialType</code> parameter",
+              "description": "`configuration.iceServers.credentialType` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -360,7 +376,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -371,7 +388,7 @@
           },
           "url_parameter": {
             "__compat": {
-              "description": "<code>configuration.iceServers.url</code> parameter",
+              "description": "`configuration.iceServers.url` parameter",
               "support": {
                 "chrome": {
                   "version_added": "25"
@@ -401,7 +418,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -412,8 +430,11 @@
           },
           "urls_parameter": {
             "__compat": {
-              "description": "<code>configuration.iceServers.urls</code> parameter",
+              "description": "`configuration.iceServers.urls` parameter",
               "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtciceserver-urls",
+              "tags": [
+                "web-features:webrtc"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "34"
@@ -441,7 +462,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -452,8 +474,11 @@
           },
           "username_parameter": {
             "__compat": {
-              "description": "<code>configuration.iceServers.username</code> parameter",
+              "description": "`configuration.iceServers.username` parameter",
               "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtciceserver-username",
+              "tags": [
+                "web-features:webrtc"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "29"
@@ -483,7 +508,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -495,8 +521,11 @@
         },
         "configuration_iceTransportPolicy_parameter": {
           "__compat": {
-            "description": "<code>configuration.iceTransportPolicy</code> parameter",
+            "description": "`configuration.iceTransportPolicy` parameter",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcconfiguration-icetransportpolicy",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -524,7 +553,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -535,7 +565,10 @@
         },
         "configuration_peerIdentity_parameter": {
           "__compat": {
-            "description": "<code>configuration.peerIdentity</code> parameter",
+            "description": "`configuration.peerIdentity` parameter",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -557,7 +590,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -568,18 +602,21 @@
         },
         "configuration_rtcpMuxPolicy_parameter": {
           "__compat": {
-            "description": "<code>configuration.rtcpMuxPolicy</code> parameter",
+            "description": "`configuration.rtcpMuxPolicy` parameter",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57",
-                "notes": "Default for <code>rtcpMuxPolicy</code> is <code>require</code>"
+                "notes": "Default for `rtcpMuxPolicy` is `require`"
               },
               "chrome_android": {
                 "version_added": "57"
               },
               "edge": {
                 "version_added": "≤79",
-                "notes": "Default for <code>rtcpMuxPolicy</code> is <code>require</code>"
+                "notes": "Default for `rtcpMuxPolicy` is `require`"
               },
               "firefox": {
                 "version_added": false
@@ -598,7 +635,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -612,6 +650,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/addIceCandidate",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-addicecandidate",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -622,11 +663,11 @@
             },
             "firefox": {
               "version_added": "22",
-              "notes": "Starting in Firefox 68, the <code>candidate</code> parameter is optional when calling <code>addIceCandidate()</code>. A <code>null</code> value for <code>candidate</code> indicates no more candidates will be sent, while an empty <code>candidate</code> string indicates that no more candidates will be sent for the current generation of candidates."
+              "notes": "Starting in Firefox 68, the `candidate` parameter is optional when calling `addIceCandidate()`. A `null` value for `candidate` indicates no more candidates will be sent, while an empty `candidate` string indicates that no more candidates will be sent for the current generation of candidates."
             },
             "firefox_android": {
               "version_added": "24",
-              "notes": "Starting in Firefox 68, the <code>candidate</code> parameter is optional when calling <code>addIceCandidate()</code>. A <code>null</code> value for <code>candidate</code> indicates no more candidates will be sent, while an empty <code>candidate</code> string indicates that no more candidates will be sent for the current generation of candidates."
+              "notes": "Starting in Firefox 68, the `candidate` parameter is optional when calling `addIceCandidate()`. A `null` value for `candidate` indicates no more candidates will be sent, while an empty `candidate` string indicates that no more candidates will be sent for the current generation of candidates."
             },
             "ie": {
               "version_added": false
@@ -639,7 +680,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -649,7 +691,10 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -657,7 +702,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "66"
+                "version_added": "37"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -671,7 +716,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -687,7 +733,7 @@
           "support": {
             "chrome": {
               "version_added": "24",
-              "impl_url": "https://crbug.com/697059"
+              "impl_url": "https://crbug.com/40508568"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -719,7 +765,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -730,12 +777,12 @@
       },
       "addstream_event": {
         "__compat": {
-          "description": "<code>addstream</code> event",
+          "description": "`addstream` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/addstream_event",
           "support": {
             "chrome": {
               "version_added": "24",
-              "impl_url": "https://crbug.com/697059"
+              "impl_url": "https://crbug.com/40508568"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -766,7 +813,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -779,6 +827,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/addTrack",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-addtrack",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -802,7 +853,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -815,6 +867,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/addTransceiver",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-addtransceiver",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -836,7 +891,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -846,7 +902,10 @@
         },
         "init_direction_parameter": {
           "__compat": {
-            "description": "<code>init.direction</code> parameter",
+            "description": "`init.direction` parameter",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -868,7 +927,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -879,7 +939,10 @@
         },
         "init_sendEncodings_parameter": {
           "__compat": {
-            "description": "<code>init.sendEncodings</code> parameter",
+            "description": "`init.sendEncodings` parameter",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -901,7 +964,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -912,7 +976,10 @@
         },
         "init_streams_parameter": {
           "__compat": {
-            "description": "<code>init.streams</code> parameter",
+            "description": "`init.streams` parameter",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -934,7 +1001,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -948,6 +1016,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/canTrickleIceCandidates",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-cantrickleicecandidates",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "83"
@@ -977,7 +1048,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -990,6 +1062,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/close",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-close",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -1015,7 +1090,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1028,6 +1104,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/connectionState",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-connection-state",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
@@ -1049,7 +1128,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1060,9 +1140,12 @@
       },
       "connectionstatechange_event": {
         "__compat": {
-          "description": "<code>connectionstatechange</code> event",
+          "description": "`connectionstatechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/connectionstatechange_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-onconnectionstatechange",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
@@ -1084,7 +1167,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1097,6 +1181,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/createAnswer",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-createanswer",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -1122,7 +1209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1132,7 +1220,10 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "51"
@@ -1140,7 +1231,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "66"
+                "version_added": "37"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1160,7 +1251,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1174,6 +1266,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/createDataChannel",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-createdatachannel",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -1197,7 +1292,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1208,6 +1304,7 @@
       },
       "createDTMFSender": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/createDTMFSender",
           "support": {
             "chrome": {
               "version_added": "27"
@@ -1229,11 +1326,12 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
-            "standard_track": true,
+            "standard_track": false,
             "deprecated": true
           }
         }
@@ -1242,6 +1340,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/createOffer",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-createoffer",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -1267,7 +1368,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1277,7 +1379,10 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "51"
@@ -1285,7 +1390,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "66"
+                "version_added": "37"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1305,7 +1410,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1319,6 +1425,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/currentLocalDescription",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-currentlocaldesc",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -1342,7 +1451,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1355,6 +1465,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/currentRemoteDescription",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-currentremotedesc",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -1376,7 +1489,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1387,9 +1501,12 @@
       },
       "datachannel_event": {
         "__compat": {
-          "description": "<code>datachannel</code> event",
+          "description": "`datachannel` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/datachannel_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-ondatachannel",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "25"
@@ -1413,7 +1530,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1424,9 +1542,12 @@
       },
       "generateCertificate_static": {
         "__compat": {
-          "description": "<code>generateCertificate()</code> static method",
+          "description": "`generateCertificate()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/generateCertificate_static",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-generatecertificate",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "48"
@@ -1452,7 +1573,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1465,6 +1587,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getConfiguration",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-getconfiguration",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -1490,7 +1615,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1527,7 +1653,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1542,7 +1669,7 @@
           "support": {
             "chrome": {
               "version_added": "27",
-              "impl_url": "https://crbug.com/697059"
+              "impl_url": "https://crbug.com/40508568"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -1572,7 +1699,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1585,6 +1713,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getReceivers",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-getreceivers",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -1608,7 +1739,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1619,6 +1751,9 @@
         "stopped_transceivers_removed": {
           "__compat": {
             "description": "Receivers for stopped transceivers not returned",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "88"
@@ -1640,7 +1775,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1656,7 +1792,7 @@
           "support": {
             "chrome": {
               "version_added": "27",
-              "impl_url": "https://crbug.com/697059"
+              "impl_url": "https://crbug.com/40508568"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -1686,7 +1822,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1699,6 +1836,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getSenders",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-getsenders",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -1722,7 +1862,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1733,6 +1874,9 @@
         "stopped_transceivers_removed": {
           "__compat": {
             "description": "Senders for stopped transceivers not returned",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "88"
@@ -1754,7 +1898,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1768,6 +1913,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getStats",
           "spec_url": "https://w3c.github.io/webrtc-pc/#widl-RTCPeerConnection-getStats-Promise-RTCStatsReport--MediaStreamTrack-selector",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -1791,7 +1939,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1801,7 +1950,10 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -1809,7 +1961,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "66"
+                "version_added": "37"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1823,7 +1975,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1834,7 +1987,10 @@
         },
         "selector_parameter": {
           "__compat": {
-            "description": "<code>selector</code> parameter",
+            "description": "`selector` parameter",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "67"
@@ -1858,7 +2014,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1872,6 +2029,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getTransceivers",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-gettranseceivers",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -1895,7 +2055,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "79"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1906,6 +2067,9 @@
         "stopped_transceivers_removed": {
           "__compat": {
             "description": "Stopped transcievers not returned",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "88"
@@ -1927,7 +2091,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1939,9 +2104,12 @@
       },
       "icecandidate_event": {
         "__compat": {
-          "description": "<code>icecandidate</code> event",
+          "description": "`icecandidate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/icecandidate_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-onicecandidate",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -1967,7 +2135,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1978,9 +2147,12 @@
       },
       "icecandidateerror_event": {
         "__compat": {
-          "description": "<code>icecandidateerror</code> event",
+          "description": "`icecandidateerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/icecandidateerror_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-onicecandidateerror",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -2003,7 +2175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2016,6 +2189,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/iceConnectionState",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-ice-connection-state",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "26"
@@ -2039,7 +2215,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2050,9 +2227,12 @@
       },
       "iceconnectionstatechange_event": {
         "__compat": {
-          "description": "<code>iceconnectionstatechange</code> event",
+          "description": "`iceconnectionstatechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/iceconnectionstatechange_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-oniceconnectionstatechange",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "28"
@@ -2076,7 +2256,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2089,6 +2270,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/iceGatheringState",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-ice-gathering-state",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "25"
@@ -2114,7 +2298,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2125,9 +2310,12 @@
       },
       "icegatheringstatechange_event": {
         "__compat": {
-          "description": "<code>icegatheringstatechange</code> event",
+          "description": "`icegatheringstatechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/icegatheringstatechange_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-onicegatheringstatechange",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -2153,7 +2341,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2186,7 +2375,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2199,6 +2389,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/localDescription",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-localdescription",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -2224,7 +2417,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2235,9 +2429,12 @@
       },
       "negotiationneeded_event": {
         "__compat": {
-          "description": "<code>negotiationneeded</code> event",
+          "description": "`negotiationneeded` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/negotiationneeded_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-onnegotiationneeded",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -2254,7 +2451,7 @@
                 "version_added": "24",
                 "version_removed": "38",
                 "partial_implementation": true,
-                "notes": "Although the <code>onnegotiationneeded</code> property is supported, the <code>negotiationneeded</code> event is never fired."
+                "notes": "Although the `onnegotiationneeded` property is supported, the `negotiationneeded` event is never fired."
               }
             ],
             "firefox_android": "mirror",
@@ -2269,7 +2466,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2306,7 +2504,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2319,6 +2518,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/pendingLocalDescription",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-pendinglocaldesc",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -2342,7 +2544,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2355,6 +2558,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/pendingRemoteDescription",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-pendingremotedesc",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -2378,7 +2584,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2391,6 +2598,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/remoteDescription",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-remotedescription",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -2416,7 +2626,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2431,7 +2642,7 @@
           "support": {
             "chrome": {
               "version_added": "24",
-              "impl_url": "https://crbug.com/697059"
+              "impl_url": "https://crbug.com/40508568"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -2465,7 +2676,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2476,12 +2688,12 @@
       },
       "removestream_event": {
         "__compat": {
-          "description": "<code>removestream</code> event",
+          "description": "`removestream` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/removestream_event",
           "support": {
             "chrome": {
               "version_added": "24",
-              "impl_url": "https://crbug.com/697059"
+              "impl_url": "https://crbug.com/40508568"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -2514,7 +2726,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2527,6 +2740,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/removeTrack",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-removetrack",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -2552,7 +2768,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2563,9 +2780,12 @@
       },
       "restartIce": {
         "__compat": {
-          "description": "<code>restartIce()</code> method",
+          "description": "`restartIce()` method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/restartIce",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-restartice",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -2587,7 +2807,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2624,7 +2845,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2637,6 +2859,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/setConfiguration",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-setconfiguration",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "48"
@@ -2660,7 +2885,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2697,7 +2923,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2708,9 +2935,12 @@
       },
       "setLocalDescription": {
         "__compat": {
-          "description": "<code>setLocalDescription()</code>",
+          "description": "`setLocalDescription()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/setLocalDescription",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-setlocaldescription",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -2721,11 +2951,11 @@
             },
             "firefox": {
               "version_added": "22",
-              "notes": "Firefox does not support descriptions of type <code>pranswer</code>."
+              "notes": "Firefox does not support descriptions of type `pranswer`."
             },
             "firefox_android": {
               "version_added": "24",
-              "notes": "Firefox does not support descriptions of type <code>pranswer</code>."
+              "notes": "Firefox does not support descriptions of type `pranswer`."
             },
             "ie": {
               "version_added": false
@@ -2738,7 +2968,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2748,7 +2979,10 @@
         },
         "description_parameter_optional": {
           "__compat": {
-            "description": "<code>description</code> parameter is optional",
+            "description": "`description` parameter is optional",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2774,7 +3008,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2785,7 +3020,10 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -2793,7 +3031,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "66"
+                "version_added": "37"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -2807,7 +3045,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2819,9 +3058,12 @@
       },
       "setRemoteDescription": {
         "__compat": {
-          "description": "<code>setRemoteDescription()</code>",
+          "description": "`setRemoteDescription()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/setRemoteDescription",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-setremotedescription",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -2847,7 +3089,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2858,6 +3101,9 @@
         "implicit_rollback": {
           "__compat": {
             "description": "Implicit rollback",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2881,7 +3127,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2892,7 +3139,10 @@
         },
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -2900,7 +3150,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "66"
+                "version_added": "37"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -2914,7 +3164,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2928,6 +3179,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/signalingState",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-peerconnection-signaling-state",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "26"
@@ -2951,7 +3205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2962,9 +3217,12 @@
       },
       "signalingstatechange_event": {
         "__compat": {
-          "description": "<code>signalingstatechange</code> event",
+          "description": "`signalingstatechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/signalingstatechange_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#event-signalingstatechange",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "28"
@@ -2981,7 +3239,7 @@
                 "version_added": "24",
                 "version_removed": "36",
                 "partial_implementation": true,
-                "notes": "Although the <code>onsignalingstatechange</code> property is supported, the <code>signalingstatechange</code> event is not fired as an <code>Event</code> object. See <a href='https://bugzil.la/1075133'>bug 1075133</a>."
+                "notes": "Although the `onsignalingstatechange` property is supported, the `signalingstatechange` event is not fired as an `Event` object. See [bug 1075133](https://bugzil.la/1075133)."
               }
             ],
             "firefox_android": "mirror",
@@ -2996,7 +3254,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3007,9 +3266,12 @@
       },
       "track_event": {
         "__compat": {
-          "description": "<code>track</code> event",
+          "description": "`track` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/track_event",
           "spec_url": "https://w3c.github.io/webrtc-pc/#event-track",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -3039,7 +3301,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCPeerConnectionIceErrorEvent.json b/api/RTCPeerConnectionIceErrorEvent.json
index ebef1b9ae26db4..906e884e04a236 100644
--- a/api/RTCPeerConnectionIceErrorEvent.json
+++ b/api/RTCPeerConnectionIceErrorEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionIceErrorEvent",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcpeerconnectioniceerrorevent",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "77"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,8 +39,11 @@
       },
       "RTCPeerConnectionIceErrorEvent": {
         "__compat": {
-          "description": "<code>RTCPeerConnectionIceErrorEvent()</code> constructor",
+          "description": "`RTCPeerConnectionIceErrorEvent()` constructor",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnectioniceerrorevent-constructor",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionIceErrorEvent/address",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnectioniceerrorevent-address",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,6 +116,9 @@
       "errorCode": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnectioniceerrorevent-errorcode",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -125,7 +140,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,6 +153,9 @@
       "errorText": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnectioniceerrorevent-errortext",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -158,7 +177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,7 +210,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -202,6 +223,9 @@
       "port": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnectioniceerrorevent-port",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -223,7 +247,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -235,6 +260,9 @@
       "url": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnectioniceerrorevent-url",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -256,7 +284,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCPeerConnectionIceEvent.json b/api/RTCPeerConnectionIceEvent.json
index c30405b65416e8..0daddebaf8b70b 100644
--- a/api/RTCPeerConnectionIceEvent.json
+++ b/api/RTCPeerConnectionIceEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionIceEvent",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcpeerconnectioniceevent",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": [
             {
@@ -34,7 +37,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,9 +48,12 @@
       },
       "RTCPeerConnectionIceEvent": {
         "__compat": {
-          "description": "<code>RTCPeerConnectionIceEvent()</code> constructor",
+          "description": "`RTCPeerConnectionIceEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionIceEvent/RTCPeerConnectionIceEvent",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnectioniceevent-constructor",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionIceEvent/candidate",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnectioniceevent-candidate",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -106,7 +117,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +130,9 @@
       "url": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnectioniceevent-url",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -139,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCRtpReceiver.json b/api/RTCRtpReceiver.json
index fff353ccd0c79a..1820ed36ec41ad 100644
--- a/api/RTCRtpReceiver.json
+++ b/api/RTCRtpReceiver.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcrtpreceiver-interface",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "59"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
       },
       "createEncodedStreams": {
         "__compat": {
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,9 +77,12 @@
       },
       "getCapabilities_static": {
         "__compat": {
-          "description": "<code>getCapabilities()</code> static method",
+          "description": "`getCapabilities()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getCapabilities_static",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpreceiver-getcapabilities",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +120,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getContributingSources",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpreceiver-getcontributingsources",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -131,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,6 +158,9 @@
         "audio_tracks_supported": {
           "__compat": {
             "description": "Audio tracks supported",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "59"
@@ -165,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -176,8 +196,11 @@
         },
         "audioLevel": {
           "__compat": {
-            "description": "<code>audioLevel</code> property in returned object",
+            "description": "`audioLevel` property in returned object",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpcontributingsource-audiolevel",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "73"
@@ -199,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -210,8 +234,11 @@
         },
         "rtpTimestamp": {
           "__compat": {
-            "description": "<code>rtpTimestamp</code> property in returned object",
+            "description": "`rtpTimestamp` property in returned object",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpcontributingsource-rtptimestamp",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "76"
@@ -234,7 +261,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -245,8 +273,11 @@
         },
         "source": {
           "__compat": {
-            "description": "<code>source</code> property in returned object",
+            "description": "`source` property in returned object",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpcontributingsource-source",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "59"
@@ -270,7 +301,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -281,8 +313,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> property in returned object",
+            "description": "`timestamp` property in returned object",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpcontributingsource-timestamp",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "59"
@@ -293,7 +328,7 @@
               },
               "firefox": {
                 "version_added": "59",
-                "notes": "Starting in version 60, the <code>timestamp</code> is correctly computed based on the window's <code>Performance</code> time, rather than <code>Date.getTime()</code>."
+                "notes": "Starting in version 60, the `timestamp` is correctly computed based on the window's `Performance` time, rather than `Date.getTime()`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -307,7 +342,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -319,6 +355,9 @@
         "video_tracks_supported": {
           "__compat": {
             "description": "Video tracks supported",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "73"
@@ -342,7 +381,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -356,6 +396,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getParameters",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpreceiver-getparameters",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -379,7 +422,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -389,9 +433,12 @@
         },
         "return_object_property_codecs": {
           "__compat": {
-            "description": "<code>codecs</code> property in returned object",
+            "description": "`codecs` property in returned object",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getParameters#codecs",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpparameters-codecs",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -415,7 +462,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -426,9 +474,12 @@
         },
         "return_object_property_headerExtensions": {
           "__compat": {
-            "description": "<code>headerExtensions</code> property in returned object",
+            "description": "`headerExtensions` property in returned object",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getParameters#headerextensions",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpparameters-headerextensions",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -452,7 +503,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -463,9 +515,12 @@
         },
         "return_object_property_rtcp": {
           "__compat": {
-            "description": "<code>rtcp</code> property in returned object",
+            "description": "`rtcp` property in returned object",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getParameters#rtcp",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpparameters-rtcp",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -489,7 +544,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -503,6 +559,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getStats",
           "spec_url": "https://w3c.github.io/webrtc-pc/#widl-RTCRtpReceiver-getStats-Promise-RTCStatsReport",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -528,7 +587,8 @@
             "samsunginternet_android": {
               "version_added": "7.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -541,6 +601,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getSynchronizationSources",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpreceiver-getsynchronizationsources",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "73"
@@ -562,7 +625,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -573,6 +637,9 @@
         "audio_tracks_supported": {
           "__compat": {
             "description": "Audio tracks supported",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "73"
@@ -594,7 +661,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -606,6 +674,9 @@
         "video_tracks_supported": {
           "__compat": {
             "description": "Video tracks supported",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "73"
@@ -627,7 +698,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -641,6 +713,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/jitterBufferTarget",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpreceiver-jitterbuffertarget",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "124"
@@ -662,7 +737,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -696,7 +772,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -709,6 +786,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/track",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtpreceiver-track",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -732,7 +812,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -750,7 +831,8 @@
           ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://crbug.com/354881878"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -769,7 +851,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -782,6 +865,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/transport",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpreceiver-transport",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -805,7 +891,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCRtpScriptTransform.json b/api/RTCRtpScriptTransform.json
index cf6bd6e9f44584..fc2f8276e5d494 100644
--- a/api/RTCRtpScriptTransform.json
+++ b/api/RTCRtpScriptTransform.json
@@ -9,7 +9,8 @@
         ],
         "support": {
           "chrome": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://crbug.com/354881878"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -28,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +40,7 @@
       },
       "RTCRtpScriptTransform": {
         "__compat": {
-          "description": "<code>RTCRtpScriptTransform()</code> constructor",
+          "description": "`RTCRtpScriptTransform()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpScriptTransform/RTCRtpScriptTransform",
           "spec_url": "https://w3c.github.io/webrtc-encoded-transform/#dom-rtcrtpscripttransform-rtcrtpscripttransform",
           "tags": [
@@ -65,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCRtpScriptTransformer.json b/api/RTCRtpScriptTransformer.json
index aa689d6ff0ea57..eaeb763b44d9a9 100644
--- a/api/RTCRtpScriptTransformer.json
+++ b/api/RTCRtpScriptTransformer.json
@@ -9,7 +9,8 @@
         ],
         "support": {
           "chrome": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://crbug.com/354881878"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -28,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,7 +218,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCRtpSender.json b/api/RTCRtpSender.json
index e721fe9c9c97e9..c7e2eadc000565 100644
--- a/api/RTCRtpSender.json
+++ b/api/RTCRtpSender.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcrtpsender-interface",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "64"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
       },
       "createEncodedStreams": {
         "__compat": {
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/dtmf",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsender-dtmf",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,9 +115,12 @@
       },
       "getCapabilities_static": {
         "__compat": {
-          "description": "<code>getCapabilities()</code> static method",
+          "description": "`getCapabilities()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getCapabilities_static",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsender-getcapabilities",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -129,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,9 +156,12 @@
       },
       "getParameters": {
         "__compat": {
-          "description": "<code>getParameters()</code>",
+          "description": "`getParameters()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getParameters",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsender-getparameters",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -166,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,9 +196,12 @@
         },
         "return_object_property_codecs": {
           "__compat": {
-            "description": "<code>codecs</code> property in returned object",
+            "description": "`codecs` property in returned object",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getParameters#codecs",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpparameters-codecs",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -209,7 +232,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -220,7 +244,7 @@
         },
         "return_object_property_degradationPreference": {
           "__compat": {
-            "description": "<code>degradationPreference</code> property in returned object",
+            "description": "`degradationPreference` property in returned object",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getParameters#degradationpreference",
             "support": {
               "chrome": {
@@ -243,7 +267,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -254,9 +279,12 @@
         },
         "return_object_property_encodings": {
           "__compat": {
-            "description": "<code>encodings</code> property in returned object",
+            "description": "`encodings` property in returned object",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getParameters#encodings",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsendparameters-encodings",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -280,7 +308,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -291,9 +320,12 @@
         },
         "return_object_property_headerExtensions": {
           "__compat": {
-            "description": "<code>headerExtensions</code> property in returned object",
+            "description": "`headerExtensions` property in returned object",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getParameters#headerextensions",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpparameters-headerextensions",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -319,7 +351,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -330,9 +363,12 @@
         },
         "return_object_property_rtcp": {
           "__compat": {
-            "description": "<code>rtcp</code> property in returned object",
+            "description": "`rtcp` property in returned object",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getParameters#rtcp",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpparameters-rtcp",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -358,7 +394,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -369,9 +406,12 @@
         },
         "return_object_property_transactionId": {
           "__compat": {
-            "description": "<code>transactionId</code> property in returned object",
+            "description": "`transactionId` property in returned object",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getParameters#transactionid",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsendparameters-transactionid",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -395,7 +435,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -407,9 +448,12 @@
       },
       "getStats": {
         "__compat": {
-          "description": "<code>getStats()</code>",
+          "description": "`getStats()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getStats",
           "spec_url": "https://w3c.github.io/webrtc-pc/#widl-RTCRtpSender-getStats-Promise-RTCStatsReport",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -433,7 +477,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -444,9 +489,12 @@
       },
       "replaceTrack": {
         "__compat": {
-          "description": "<code>replaceTrack()</code>",
+          "description": "`replaceTrack()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/replaceTrack",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsender-replacetrack",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -468,7 +516,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -502,7 +551,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -513,9 +563,12 @@
       },
       "setParameters": {
         "__compat": {
-          "description": "<code>setParameters()</code>",
+          "description": "`setParameters()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setParameters",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsender-setparameters",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -547,7 +600,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -557,9 +611,12 @@
         },
         "parameters_codecs_parameter": {
           "__compat": {
-            "description": "<code>parameters.codecs</code> parameter",
+            "description": "`parameters.codecs` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setParameters#codecs",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpparameters-codecs",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -590,7 +647,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -601,7 +659,7 @@
         },
         "parameters_degradationPreference_parameter": {
           "__compat": {
-            "description": "<code>parameters.degradationPreference</code> parameter",
+            "description": "`parameters.degradationPreference` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setParameters#degradationpreference",
             "support": {
               "chrome": {
@@ -624,7 +682,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -635,9 +694,12 @@
         },
         "parameters_encodings_parameter": {
           "__compat": {
-            "description": "<code>parameters.encodings</code> parameter",
+            "description": "`parameters.encodings` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setParameters#encodings",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsendparameters-encodings",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -661,7 +723,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -671,7 +734,10 @@
           },
           "active": {
             "__compat": {
-              "description": "<code>parameters.encodings.active</code> parameter",
+              "description": "`parameters.encodings.active` parameter",
+              "tags": [
+                "web-features:webrtc"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "69"
@@ -695,7 +761,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -706,7 +773,7 @@
           },
           "dtx": {
             "__compat": {
-              "description": "<code>parameters.encodings.dtx</code> parameter",
+              "description": "`parameters.encodings.dtx` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -728,7 +795,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -739,8 +807,11 @@
           },
           "maxBitrate": {
             "__compat": {
-              "description": "<code>parameters.encodings.maxBitrate</code> parameter",
+              "description": "`parameters.encodings.maxBitrate` parameter",
               "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpencodingparameters-maxbitrate",
+              "tags": [
+                "web-features:webrtc"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "69"
@@ -764,7 +835,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -775,8 +847,11 @@
           },
           "maxFramerate": {
             "__compat": {
-              "description": "<code>parameters.encodings.maxFramerate</code> parameter",
+              "description": "`parameters.encodings.maxFramerate` parameter",
               "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpencodingparameters-maxframerate",
+              "tags": [
+                "web-features:webrtc"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "81"
@@ -786,7 +861,7 @@
                 "firefox": {
                   "version_added": "101",
                   "partial_implementation": true,
-                  "notes": "Zero is treated as 'no fps limit' (see <a href='https://bugzil.la/1611957'>bug 1611957</a>)."
+                  "notes": "Zero is treated as 'no fps limit' (see [bug 1611957](https://bugzil.la/1611957))."
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -800,7 +875,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -811,7 +887,7 @@
           },
           "priority": {
             "__compat": {
-              "description": "<code>parameters.encodings.priority</code> parameter",
+              "description": "`parameters.encodings.priority` parameter",
               "spec_url": "https://w3c.github.io/webrtc-priority/#dom-rtcrtpencodingparameters-priority",
               "support": {
                 "chrome": {
@@ -823,7 +899,7 @@
                 },
                 "firefox": {
                   "version_added": "46",
-                  "notes": "In version 110 and later the default priority is <code>low</code>."
+                  "notes": "In version 110 and later the default priority is `low`."
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -837,7 +913,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -848,7 +925,10 @@
           },
           "rid": {
             "__compat": {
-              "description": "<code>parameters.encodings.rid</code> parameter",
+              "description": "`parameters.encodings.rid` parameter",
+              "tags": [
+                "web-features:webrtc"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -870,7 +950,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -881,8 +962,11 @@
           },
           "scaleResolutionDownBy": {
             "__compat": {
-              "description": "<code>parameters.encodings.scaleResolutionDownBy</code> parameter",
+              "description": "`parameters.encodings.scaleResolutionDownBy` parameter",
               "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpencodingparameters-scaleresolutiondownby",
+              "tags": [
+                "web-features:webrtc"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -906,7 +990,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -918,9 +1003,12 @@
         },
         "parameters_headerExtensions_parameter": {
           "__compat": {
-            "description": "<code>parameters.headerExtensions</code> parameter",
+            "description": "`parameters.headerExtensions` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setParameters#headerextensions",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpparameters-headerextensions",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -946,7 +1034,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -957,9 +1046,12 @@
         },
         "parameters_rtcp_parameter": {
           "__compat": {
-            "description": "<code>parameters.rtcp</code> parameter",
+            "description": "`parameters.rtcp` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setParameters#rtcp",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpparameters-rtcp",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -985,7 +1077,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -996,9 +1089,12 @@
         },
         "parameters_transactionId_parameter": {
           "__compat": {
-            "description": "<code>parameters.transactionId</code> parameter",
+            "description": "`parameters.transactionId` parameter",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setParameters#transactionid",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsendparameters-transactionid",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -1022,7 +1118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1036,6 +1133,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setStreams",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsender-setstreams",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -1059,7 +1159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "79"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1072,6 +1173,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/track",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsender-track",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -1095,7 +1199,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1113,7 +1218,8 @@
           ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://crbug.com/354881878"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -1132,7 +1238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1145,6 +1252,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpSender/transport",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtpsender-transport",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "75"
@@ -1168,7 +1278,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCRtpTransceiver.json b/api/RTCRtpTransceiver.json
index 06904579823fa3..c9293c9a6031ee 100644
--- a/api/RTCRtpTransceiver.json
+++ b/api/RTCRtpTransceiver.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcrtptransceiver-interface",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "69"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/currentDirection",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-currentdirection",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,8 +78,11 @@
         },
         "stopped_value": {
           "__compat": {
-            "description": "<code>\"stopped\"</code> value",
+            "description": "`\"stopped\"` value",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiverdirection-stopped",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -93,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,6 +119,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/direction",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-direction",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -128,7 +143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,8 +154,11 @@
         },
         "value_stopped": {
           "__compat": {
-            "description": "<code>\"stopped\"</code> value",
+            "description": "`\"stopped\"` value",
             "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiverdirection-stopped",
+            "tags": [
+              "web-features:webrtc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -161,7 +180,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -174,6 +194,9 @@
       "getHeaderExtensionsToNegotiate": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-extensions/#dom-rtcrtptransceiver-getheaderextensionstonegotiate",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -195,7 +218,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -207,6 +231,9 @@
       "getNegotiatedHeaderExtensions": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-extensions/#dom-rtcrtptransceiver-getnegotiatedheaderextensions",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -228,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -241,6 +269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/mid",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtptransceiver-mid",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -262,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -275,6 +307,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/receiver",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-receiver",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -296,7 +331,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -309,6 +345,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/sender",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-sender",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -330,7 +369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -341,9 +381,12 @@
       },
       "setCodecPreferences": {
         "__compat": {
-          "description": "<code>setCodecPreferences()</code>",
+          "description": "`setCodecPreferences()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/setCodecPreferences",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-setcodecpreferences",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "76"
@@ -365,7 +408,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -377,6 +421,9 @@
       "setHeaderExtensionsToNegotiate": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webrtc-extensions/#dom-rtcrtptransceiver-setheaderextensionstonegotiate",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -398,7 +445,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -409,9 +457,12 @@
       },
       "stop": {
         "__compat": {
-          "description": "<code>stop()</code>",
+          "description": "`stop()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/stop",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcrtptransceiver-stop",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "88"
@@ -433,7 +484,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -466,7 +518,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCSctpTransport.json b/api/RTCSctpTransport.json
index 55538de6d8117f..667dd4611a7385 100644
--- a/api/RTCSctpTransport.json
+++ b/api/RTCSctpTransport.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -149,7 +153,7 @@
       },
       "statechange_event": {
         "__compat": {
-          "description": "<code>statechange</code> event",
+          "description": "`statechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCSctpTransport/statechange_event",
           "tags": [
             "web-features:webrtc-sctp"
@@ -175,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCSessionDescription.json b/api/RTCSessionDescription.json
index 53dbcd72c6b1c0..86ba76fee5c2eb 100644
--- a/api/RTCSessionDescription.json
+++ b/api/RTCSessionDescription.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCSessionDescription",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcsessiondescription-class",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "23"
@@ -41,7 +44,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -51,7 +55,7 @@
       },
       "RTCSessionDescription": {
         "__compat": {
-          "description": "<code>RTCSessionDescription()</code> constructor",
+          "description": "`RTCSessionDescription()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCSessionDescription/RTCSessionDescription",
           "support": {
             "chrome": {
@@ -90,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,6 +108,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCSessionDescription/sdp",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcsessiondescription-sdp",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -128,7 +136,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -141,6 +150,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCSessionDescription/toJSON",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcsessiondescription-tojson",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -164,7 +176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,6 +190,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCSessionDescription/type",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcsessiondescription-type",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -202,7 +218,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCStatsReport.json b/api/RTCStatsReport.json
index adbc22f3764742..1623c84e5e403b 100644
--- a/api/RTCStatsReport.json
+++ b/api/RTCStatsReport.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport",
         "spec_url": "https://w3c.github.io/webrtc-pc/#rtcstatsreport-object",
+        "tags": [
+          "web-features:webrtc-stats"
+        ],
         "support": {
           "chrome": {
             "version_added": "58"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport/entries",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcstatsreport",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport/forEach",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcstatsreport",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport/get",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcstatsreport",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,6 +155,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport/has",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcstatsreport",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -160,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport/keys",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcstatsreport",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -194,7 +217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport/size",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtcstatsreport",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -228,7 +255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -239,9 +267,12 @@
       },
       "type_candidate-pair": {
         "__compat": {
-          "description": "<code>candidate-pair</code> stats",
+          "description": "`candidate-pair` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#canditate_pair",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-candidate-pair",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -263,7 +294,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -273,8 +305,11 @@
         },
         "availableOutgoingBitrate": {
           "__compat": {
-            "description": "<code>availableOutgoingBitrate</code> in 'candidate-pair' stats",
+            "description": "`availableOutgoingBitrate` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-availableoutgoingbitrate",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -297,7 +332,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -308,8 +344,11 @@
         },
         "bytesDiscardedOnSend": {
           "__compat": {
-            "description": "<code>bytesDiscardedOnSend</code> in 'candidate-pair' stats",
+            "description": "`bytesDiscardedOnSend` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-bytesdiscardedonsend",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "96"
@@ -331,7 +370,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -342,8 +382,11 @@
         },
         "bytesReceived": {
           "__compat": {
-            "description": "<code>bytesReceived</code> in 'candidate-pair' stats",
+            "description": "`bytesReceived` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-bytesreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -365,7 +408,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -376,8 +420,11 @@
         },
         "bytesSent": {
           "__compat": {
-            "description": "<code>bytesSent</code> in 'candidate-pair' stats",
+            "description": "`bytesSent` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-bytessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -399,7 +446,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -410,8 +458,11 @@
         },
         "consentRequestsSent": {
           "__compat": {
-            "description": "<code>consentRequestsSent</code> in 'candidate-pair' stats",
+            "description": "`consentRequestsSent` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-consentrequestssent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -433,7 +484,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -444,8 +496,11 @@
         },
         "currentRoundTripTime": {
           "__compat": {
-            "description": "<code>currentRoundTripTime</code> in 'candidate-pair' stats",
+            "description": "`currentRoundTripTime` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-currentroundtriptime",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": [
                 {
@@ -474,7 +529,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -485,8 +541,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'candidate-pair' stats",
+            "description": "`id` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -508,7 +567,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -519,8 +579,11 @@
         },
         "lastPacketReceivedTimestamp": {
           "__compat": {
-            "description": "<code>lastPacketReceivedTimestamp</code> in 'candidate-pair' stats",
+            "description": "`lastPacketReceivedTimestamp` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-lastpacketreceivedtimestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -542,7 +605,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -553,8 +617,11 @@
         },
         "lastPacketSentTimestamp": {
           "__compat": {
-            "description": "<code>lastPacketSentTimestamp</code> in 'candidate-pair' stats",
+            "description": "`lastPacketSentTimestamp` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-lastpacketsenttimestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -576,7 +643,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -587,8 +655,11 @@
         },
         "localCandidateId": {
           "__compat": {
-            "description": "<code>localCandidateId</code> in 'candidate-pair' stats",
+            "description": "`localCandidateId` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-localcandidateid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -610,7 +681,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -621,8 +693,11 @@
         },
         "nominated": {
           "__compat": {
-            "description": "<code>nominated</code> in 'candidate-pair' stats",
+            "description": "`nominated` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-nominated",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -644,7 +719,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -655,8 +731,11 @@
         },
         "packetsDiscardedOnSend": {
           "__compat": {
-            "description": "<code>packetsDiscardedOnSend</code> in 'candidate-pair' stats",
+            "description": "`packetsDiscardedOnSend` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-packetsdiscardedonsend",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "96"
@@ -678,7 +757,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -689,8 +769,11 @@
         },
         "packetsReceived": {
           "__compat": {
-            "description": "<code>packetsReceived</code> in 'candidate-pair' stats",
+            "description": "`packetsReceived` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-packetsreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "96"
@@ -712,7 +795,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -723,8 +807,11 @@
         },
         "packetsSent": {
           "__compat": {
-            "description": "<code>packetsSent</code> in 'candidate-pair' stats",
+            "description": "`packetsSent` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-packetssent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "96"
@@ -746,7 +833,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -757,7 +845,7 @@
         },
         "priority": {
           "__compat": {
-            "description": "<code>priority</code> in 'candidate-pair' stats",
+            "description": "`priority` in 'candidate-pair' stats",
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -786,7 +874,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -797,8 +886,11 @@
         },
         "remoteCandidateId": {
           "__compat": {
-            "description": "<code>remoteCandidateId</code> in 'candidate-pair' stats",
+            "description": "`remoteCandidateId` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-remotecandidateid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -820,7 +912,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -831,8 +924,11 @@
         },
         "requestsReceived": {
           "__compat": {
-            "description": "<code>requestsReceived</code> in 'candidate-pair' stats",
+            "description": "`requestsReceived` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-requestsreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -854,7 +950,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -865,8 +962,11 @@
         },
         "requestsSent": {
           "__compat": {
-            "description": "<code>requestsSent</code> in 'candidate-pair' stats",
+            "description": "`requestsSent` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-requestssent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -888,7 +988,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -899,8 +1000,11 @@
         },
         "responsesReceived": {
           "__compat": {
-            "description": "<code>responsesReceived</code> in 'candidate-pair' stats",
+            "description": "`responsesReceived` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-responsesreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -922,7 +1026,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -933,8 +1038,11 @@
         },
         "responsesSent": {
           "__compat": {
-            "description": "<code>responsesSent</code> in 'candidate-pair' stats",
+            "description": "`responsesSent` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-responsessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -956,7 +1064,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -967,8 +1076,11 @@
         },
         "state": {
           "__compat": {
-            "description": "<code>state</code> in 'candidate-pair' stats",
+            "description": "`state` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-state",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -990,7 +1102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1001,8 +1114,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'candidate-pair' stats",
+            "description": "`timestamp` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1024,7 +1140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1035,8 +1152,11 @@
         },
         "totalRoundTripTime": {
           "__compat": {
-            "description": "<code>totalRoundTripTime</code> in 'candidate-pair' stats",
+            "description": "`totalRoundTripTime` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-totalroundtriptime",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": [
                 {
@@ -1064,7 +1184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1075,8 +1196,11 @@
         },
         "transportId": {
           "__compat": {
-            "description": "<code>transportId</code> in 'candidate-pair' stats",
+            "description": "`transportId` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-transportid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -1104,7 +1228,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1115,8 +1240,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'candidate-pair' stats",
+            "description": "`type` in 'candidate-pair' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1138,7 +1266,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1150,9 +1279,12 @@
       },
       "type_certificate": {
         "__compat": {
-          "description": "<code>certificate</code> stats",
+          "description": "`certificate` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#certificate",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-certificate",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -1174,7 +1306,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1184,8 +1317,11 @@
         },
         "base64Certificate": {
           "__compat": {
-            "description": "<code>base64Certificate</code> in 'certificate' stats",
+            "description": "`base64Certificate` in 'certificate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtccertificatestats-base64certificate",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1207,7 +1343,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1218,8 +1355,11 @@
         },
         "fingerprint": {
           "__compat": {
-            "description": "<code>fingerprint</code> in 'certificate' stats",
+            "description": "`fingerprint` in 'certificate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtccertificatestats-fingerprint",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1241,7 +1381,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1252,8 +1393,11 @@
         },
         "fingerprintAlgorithm": {
           "__compat": {
-            "description": "<code>fingerprintAlgorithm</code> in 'certificate' stats",
+            "description": "`fingerprintAlgorithm` in 'certificate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtccertificatestats-fingerprintalgorithm",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1275,7 +1419,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1286,8 +1431,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'certificate' stats",
+            "description": "`id` in 'certificate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1309,7 +1457,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1320,8 +1469,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'certificate' stats",
+            "description": "`timestamp` in 'certificate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1343,7 +1495,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1354,8 +1507,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'certificate' stats",
+            "description": "`type` in 'certificate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1377,7 +1533,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1389,9 +1546,12 @@
       },
       "type_codec": {
         "__compat": {
-          "description": "<code>codec</code> stats",
+          "description": "`codec` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#codec",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-codec",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -1413,7 +1573,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1423,8 +1584,11 @@
         },
         "channels": {
           "__compat": {
-            "description": "<code>channels</code> in 'codec' stats",
+            "description": "`channels` in 'codec' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtccodecstats-channels",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "83"
@@ -1446,7 +1610,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1457,8 +1622,11 @@
         },
         "clockRate": {
           "__compat": {
-            "description": "<code>clockRate</code> in 'codec' stats",
+            "description": "`clockRate` in 'codec' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtccodecstats-clockrate",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1480,7 +1648,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1491,8 +1660,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'codec' stats",
+            "description": "`id` in 'codec' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1514,7 +1686,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1525,8 +1698,11 @@
         },
         "mimeType": {
           "__compat": {
-            "description": "<code>mimeType</code> in 'codec' stats",
+            "description": "`mimeType` in 'codec' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtccodecstats-mimetype",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1548,7 +1724,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1559,8 +1736,11 @@
         },
         "payloadType": {
           "__compat": {
-            "description": "<code>payloadType</code> in 'codec' stats",
+            "description": "`payloadType` in 'codec' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtccodecstats-payloadtype",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1582,7 +1762,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1593,8 +1774,11 @@
         },
         "sdpFmtpLine": {
           "__compat": {
-            "description": "<code>sdpFmtpLine</code> in 'codec' stats",
+            "description": "`sdpFmtpLine` in 'codec' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtccodecstats-sdpfmtpline",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "83"
@@ -1616,7 +1800,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1627,8 +1812,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'codec' stats",
+            "description": "`timestamp` in 'codec' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1650,7 +1838,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1661,8 +1850,11 @@
         },
         "transportId": {
           "__compat": {
-            "description": "<code>transportId</code> in 'codec' stats",
+            "description": "`transportId` in 'codec' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtccodecstats-transportid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -1684,7 +1876,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1695,8 +1888,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'codec' stats",
+            "description": "`type` in 'codec' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1718,7 +1914,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1730,9 +1927,12 @@
       },
       "type_data-channel": {
         "__compat": {
-          "description": "<code>data-channel</code> stats",
+          "description": "`data-channel` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#data_channel",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-data-channel",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -1756,7 +1956,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1766,8 +1967,11 @@
         },
         "bytesReceived": {
           "__compat": {
-            "description": "<code>bytesReceived</code> in 'data-channel' stats",
+            "description": "`bytesReceived` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcdatachannelstats-bytesreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1791,7 +1995,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1802,8 +2007,11 @@
         },
         "bytesSent": {
           "__compat": {
-            "description": "<code>bytesSent</code> in 'data-channel' stats",
+            "description": "`bytesSent` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcdatachannelstats-bytessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1827,7 +2035,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1838,8 +2047,11 @@
         },
         "dataChannelIdentifier": {
           "__compat": {
-            "description": "<code>dataChannelIdentifier</code> in 'data-channel' stats",
+            "description": "`dataChannelIdentifier` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcdatachannelstats-datachannelidentifier",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "85"
@@ -1863,7 +2075,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1874,8 +2087,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'data-channel' stats",
+            "description": "`id` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1899,7 +2115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1910,8 +2127,11 @@
         },
         "label": {
           "__compat": {
-            "description": "<code>label</code> in 'data-channel' stats",
+            "description": "`label` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcdatachannelstats-label",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1935,7 +2155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1946,8 +2167,11 @@
         },
         "messagesReceived": {
           "__compat": {
-            "description": "<code>messagesReceived</code> in 'data-channel' stats",
+            "description": "`messagesReceived` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcdatachannelstats-messagesreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -1971,7 +2195,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1982,8 +2207,11 @@
         },
         "messagesSent": {
           "__compat": {
-            "description": "<code>messagesSent</code> in 'data-channel' stats",
+            "description": "`messagesSent` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcdatachannelstats-messagessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2007,7 +2235,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2018,8 +2247,11 @@
         },
         "protocol": {
           "__compat": {
-            "description": "<code>protocol</code> in 'data-channel' stats",
+            "description": "`protocol` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcdatachannelstats-protocol",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2043,7 +2275,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2054,8 +2287,11 @@
         },
         "state": {
           "__compat": {
-            "description": "<code>state</code> in 'data-channel' stats",
+            "description": "`state` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcdatachannelstats-state",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2079,7 +2315,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2090,8 +2327,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'data-channel' stats",
+            "description": "`timestamp` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2115,7 +2355,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2126,8 +2367,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'data-channel' stats",
+            "description": "`type` in 'data-channel' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2151,7 +2395,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2163,9 +2408,12 @@
       },
       "type_inbound-rtp": {
         "__compat": {
-          "description": "<code>inbound-rtp</code> stats",
+          "description": "`inbound-rtp` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#inbound_rtp",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-inbound-rtp",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -2187,7 +2435,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2197,8 +2446,11 @@
         },
         "audioLevel": {
           "__compat": {
-            "description": "<code>audioLevel</code> in 'inbound-rtp' stats",
+            "description": "`audioLevel` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-audiolevel",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2223,7 +2475,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2234,8 +2487,11 @@
         },
         "bytesReceived": {
           "__compat": {
-            "description": "<code>bytesReceived</code> in 'inbound-rtp' stats",
+            "description": "`bytesReceived` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-bytesreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "79"
@@ -2257,7 +2513,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2268,8 +2525,11 @@
         },
         "codecId": {
           "__compat": {
-            "description": "<code>codecId</code> in 'inbound-rtp' stats",
+            "description": "`codecId` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-codecid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2294,7 +2554,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2305,8 +2566,11 @@
         },
         "concealedSamples": {
           "__compat": {
-            "description": "<code>concealedSamples</code> in 'inbound-rtp' stats",
+            "description": "`concealedSamples` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-concealedsamples",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2328,7 +2592,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2339,8 +2604,11 @@
         },
         "concealmentEvents": {
           "__compat": {
-            "description": "<code>concealmentEvents</code> in 'inbound-rtp' stats",
+            "description": "`concealmentEvents` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-concealmentevents",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2362,7 +2630,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2373,8 +2642,11 @@
         },
         "fecPacketsDiscarded": {
           "__compat": {
-            "description": "<code>fecPacketsDiscarded</code> in 'inbound-rtp' stats",
+            "description": "`fecPacketsDiscarded` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-fecpacketsdiscarded",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "81"
@@ -2396,7 +2668,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2407,8 +2680,11 @@
         },
         "fecPacketsReceived": {
           "__compat": {
-            "description": "<code>fecPacketsReceived</code> in 'inbound-rtp' stats",
+            "description": "`fecPacketsReceived` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-fecpacketsreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "81"
@@ -2430,7 +2706,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2441,8 +2718,11 @@
         },
         "frameHeight": {
           "__compat": {
-            "description": "<code>frameHeight</code> in 'inbound-rtp' stats",
+            "description": "`frameHeight` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-frameheight",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2464,7 +2744,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2475,11 +2756,14 @@
         },
         "framesDecoded": {
           "__compat": {
-            "description": "<code>framesDecoded</code> in 'inbound-rtp' stats",
+            "description": "`framesDecoded` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-framesdecoded",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤80"
+                "version_added": "79"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -2499,7 +2783,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2510,8 +2795,11 @@
         },
         "framesPerSecond": {
           "__compat": {
-            "description": "<code>framesPerSecond</code> in 'inbound-rtp' stats",
+            "description": "`framesPerSecond` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-framespersecond",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2533,7 +2821,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2544,8 +2833,11 @@
         },
         "framesReceived": {
           "__compat": {
-            "description": "<code>framesReceived</code> in 'inbound-rtp' stats",
+            "description": "`framesReceived` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-framesreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2567,7 +2859,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2578,8 +2871,11 @@
         },
         "frameWidth": {
           "__compat": {
-            "description": "<code>frameWidth</code> in 'inbound-rtp' stats",
+            "description": "`frameWidth` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-framewidth",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2601,7 +2897,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2612,8 +2909,11 @@
         },
         "headerBytesReceived": {
           "__compat": {
-            "description": "<code>headerBytesReceived</code> in 'inbound-rtp' stats",
+            "description": "`headerBytesReceived` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-headerbytesreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2635,7 +2935,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2646,8 +2947,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'inbound-rtp' stats",
+            "description": "`id` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2669,7 +2973,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2680,8 +2985,11 @@
         },
         "insertedSamplesForDeceleration": {
           "__compat": {
-            "description": "<code>insertedSamplesForDeceleration</code> in 'inbound-rtp' stats",
+            "description": "`insertedSamplesForDeceleration` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-insertedsamplesfordeceleration",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2703,7 +3011,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2714,8 +3023,11 @@
         },
         "jitter": {
           "__compat": {
-            "description": "<code>jitter</code> in 'inbound-rtp' stats",
+            "description": "`jitter` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcreceivedrtpstreamstats-jitter",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2737,7 +3049,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2748,8 +3061,11 @@
         },
         "jitterBufferDelay": {
           "__compat": {
-            "description": "<code>jitterBufferDelay</code> in 'inbound-rtp' stats",
+            "description": "`jitterBufferDelay` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-jitterbufferdelay",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2771,7 +3087,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2782,8 +3099,11 @@
         },
         "jitterBufferEmittedCount": {
           "__compat": {
-            "description": "<code>jitterBufferEmittedCount</code> in 'inbound-rtp' stats",
+            "description": "`jitterBufferEmittedCount` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-jitterbufferemittedcount",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -2805,7 +3125,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2816,8 +3137,11 @@
         },
         "jitterBufferMinimumDelay": {
           "__compat": {
-            "description": "<code>jitterBufferMinimumDelay</code> in 'inbound-rtp' stats",
+            "description": "`jitterBufferMinimumDelay` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-jitterbufferminimumdelay",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -2839,7 +3163,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2850,8 +3175,11 @@
         },
         "jitterBufferTargetDelay": {
           "__compat": {
-            "description": "<code>jitterBufferTargetDelay</code> in 'inbound-rtp' stats",
+            "description": "`jitterBufferTargetDelay` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-jitterbuffertargetdelay",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -2873,7 +3201,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2884,11 +3213,14 @@
         },
         "keyFramesDecoded": {
           "__compat": {
-            "description": "<code>keyFramesDecoded</code> in 'inbound-rtp' stats",
+            "description": "`keyFramesDecoded` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-keyframesdecoded",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤80"
+                "version_added": "79"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -2907,7 +3239,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -2918,8 +3251,11 @@
         },
         "kind": {
           "__compat": {
-            "description": "<code>kind</code> in 'inbound-rtp' stats",
+            "description": "`kind` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-kind",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2941,7 +3277,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2952,8 +3289,11 @@
         },
         "lastPacketReceivedTimestamp": {
           "__compat": {
-            "description": "<code>lastPacketReceivedTimestamp</code> in 'inbound-rtp' stats",
+            "description": "`lastPacketReceivedTimestamp` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-lastpacketreceivedtimestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -2978,7 +3318,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2989,8 +3330,11 @@
         },
         "mid": {
           "__compat": {
-            "description": "<code>mid</code> in 'inbound-rtp' stats",
+            "description": "`mid` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-mid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -3012,7 +3356,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3023,8 +3368,11 @@
         },
         "nackCount": {
           "__compat": {
-            "description": "<code>nackCount</code> in 'inbound-rtp' stats",
+            "description": "`nackCount` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-nackcount",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3048,7 +3396,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3059,8 +3408,11 @@
         },
         "packetsDiscarded": {
           "__compat": {
-            "description": "<code>packetsDiscarded</code> in 'inbound-rtp' stats",
+            "description": "`packetsDiscarded` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-packetsdiscarded",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "94"
@@ -3082,7 +3434,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3093,8 +3446,11 @@
         },
         "packetsLost": {
           "__compat": {
-            "description": "<code>packetsLost</code> in 'inbound-rtp' stats",
+            "description": "`packetsLost` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcreceivedrtpstreamstats-packetslost",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3116,7 +3472,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3127,8 +3484,11 @@
         },
         "packetsReceived": {
           "__compat": {
-            "description": "<code>packetsReceived</code> in 'inbound-rtp' stats",
+            "description": "`packetsReceived` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcreceivedrtpstreamstats-packetsreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3150,7 +3510,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3161,8 +3522,11 @@
         },
         "playoutId": {
           "__compat": {
-            "description": "<code>playoutId</code> in 'inbound-rtp' stats",
+            "description": "`playoutId` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-playoutid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -3184,7 +3548,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3195,11 +3560,14 @@
         },
         "qpSum": {
           "__compat": {
-            "description": "<code>qpSum</code> in 'inbound-rtp' stats",
+            "description": "`qpSum` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-qpsum",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤80"
+                "version_added": "79"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -3218,7 +3586,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3230,6 +3599,9 @@
         "remoteId": {
           "__compat": {
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-remoteid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -3251,7 +3623,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3262,8 +3635,11 @@
         },
         "removedSamplesForAcceleration": {
           "__compat": {
-            "description": "<code>removedSamplesForAcceleration</code> in 'inbound-rtp' stats",
+            "description": "`removedSamplesForAcceleration` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-removedsamplesforacceleration",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -3285,7 +3661,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3296,8 +3673,11 @@
         },
         "silentConcealedSamples": {
           "__compat": {
-            "description": "<code>silentConcealedSamples</code> in 'inbound-rtp' stats",
+            "description": "`silentConcealedSamples` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-silentconcealedsamples",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -3319,7 +3699,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3330,8 +3711,11 @@
         },
         "ssrc": {
           "__compat": {
-            "description": "<code>ssrc</code> in 'inbound-rtp' stats",
+            "description": "`ssrc` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-ssrc",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3353,7 +3737,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3364,8 +3749,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'inbound-rtp' stats",
+            "description": "`timestamp` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3387,7 +3775,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3398,8 +3787,11 @@
         },
         "totalAudioEnergy": {
           "__compat": {
-            "description": "<code>totalAudioEnergy</code> in 'inbound-rtp' stats",
+            "description": "`totalAudioEnergy` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-totalaudioenergy",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -3421,7 +3813,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3432,11 +3825,14 @@
         },
         "totalDecodeTime": {
           "__compat": {
-            "description": "<code>totalDecodeTime</code> in 'inbound-rtp' stats",
+            "description": "`totalDecodeTime` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-totaldecodetime",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤80"
+                "version_added": "79"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -3455,7 +3851,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3466,11 +3863,14 @@
         },
         "totalInterFrameDelay": {
           "__compat": {
-            "description": "<code>totalInterFrameDelay</code> in 'inbound-rtp' stats",
+            "description": "`totalInterFrameDelay` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-totalinterframedelay",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤80"
+                "version_added": "79"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -3489,7 +3889,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3500,8 +3901,11 @@
         },
         "totalProcessingDelay": {
           "__compat": {
-            "description": "<code>totalProcessingDelay</code> in 'inbound-rtp' stats",
+            "description": "`totalProcessingDelay` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-totalprocessingdelay",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -3523,7 +3927,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3534,8 +3939,11 @@
         },
         "totalSamplesDuration": {
           "__compat": {
-            "description": "<code>totalSamplesDuration</code> in 'inbound-rtp' stats",
+            "description": "`totalSamplesDuration` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-totalsamplesduration",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -3557,7 +3965,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3568,8 +3977,11 @@
         },
         "totalSamplesReceived": {
           "__compat": {
-            "description": "<code>totalSamplesReceived</code> in 'inbound-rtp' stats",
+            "description": "`totalSamplesReceived` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-totalsamplesreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -3591,7 +4003,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3602,11 +4015,14 @@
         },
         "totalSquaredInterFrameDelay": {
           "__compat": {
-            "description": "<code>totalSquaredInterFrameDelay</code> in 'inbound-rtp' stats",
+            "description": "`totalSquaredInterFrameDelay` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-totalsquaredinterframedelay",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤80"
+                "version_added": "79"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -3625,7 +4041,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3636,8 +4053,11 @@
         },
         "trackIdentifier": {
           "__compat": {
-            "description": "<code>trackIdentifier</code> in 'inbound-rtp' stats",
+            "description": "`trackIdentifier` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcinboundrtpstreamstats-trackidentifier",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -3659,7 +4079,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3670,8 +4091,11 @@
         },
         "transportId": {
           "__compat": {
-            "description": "<code>transportId</code> in 'inbound-rtp' stats",
+            "description": "`transportId` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-transportid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3693,7 +4117,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3704,8 +4129,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'inbound-rtp' stats",
+            "description": "`type` in 'inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3727,7 +4155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3739,9 +4168,12 @@
       },
       "type_local-candidate": {
         "__compat": {
-          "description": "<code>local-candidate</code> stats",
+          "description": "`local-candidate` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#local_candidate",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-local-candidate",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -3763,7 +4195,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3773,8 +4206,11 @@
         },
         "address": {
           "__compat": {
-            "description": "<code>address</code> in 'local-candidate' stats",
+            "description": "`address` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-address",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -3802,7 +4238,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3813,8 +4250,11 @@
         },
         "candidateType": {
           "__compat": {
-            "description": "<code>candidateType</code> in 'local-candidate' stats",
+            "description": "`candidateType` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-candidatetype",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3836,7 +4276,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3847,8 +4288,11 @@
         },
         "foundation": {
           "__compat": {
-            "description": "<code>foundation</code> in 'local-candidate' stats",
+            "description": "`foundation` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-foundation",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -3870,7 +4314,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3881,8 +4326,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'local-candidate' stats",
+            "description": "`id` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3904,7 +4352,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3915,8 +4364,11 @@
         },
         "port": {
           "__compat": {
-            "description": "<code>port</code> in 'local-candidate' stats",
+            "description": "`port` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-port",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3944,7 +4396,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3955,8 +4408,11 @@
         },
         "priority": {
           "__compat": {
-            "description": "<code>priority</code> in 'local-candidate' stats",
+            "description": "`priority` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-priority",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -3978,7 +4434,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3989,8 +4446,11 @@
         },
         "protocol": {
           "__compat": {
-            "description": "<code>protocol</code> in 'local-candidate' stats",
+            "description": "`protocol` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-protocol",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4018,7 +4478,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4029,8 +4490,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'local-candidate' stats",
+            "description": "`timestamp` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4052,7 +4516,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4063,8 +4528,11 @@
         },
         "transportId": {
           "__compat": {
-            "description": "<code>transportId</code> in 'local-candidate' stats",
+            "description": "`transportId` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-transportid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4087,7 +4555,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4098,8 +4567,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'local-candidate' stats",
+            "description": "`type` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4121,7 +4593,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4132,8 +4605,11 @@
         },
         "usernameFragment": {
           "__compat": {
-            "description": "<code>usernameFragment</code> in 'local-candidate' stats",
+            "description": "`usernameFragment` in 'local-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-usernamefragment",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -4155,7 +4631,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4167,9 +4644,12 @@
       },
       "type_media-playout": {
         "__compat": {
-          "description": "<code>media-playout</code> stats",
+          "description": "`media-playout` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#media_playout",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-media-playout",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "111"
@@ -4191,7 +4671,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4201,8 +4682,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'media-playout' stats",
+            "description": "`id` in 'media-playout' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -4224,7 +4708,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4235,8 +4720,11 @@
         },
         "kind": {
           "__compat": {
-            "description": "<code>kind</code> in 'media-playout' stats",
+            "description": "`kind` in 'media-playout' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcaudioplayoutstats-kind",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -4258,7 +4746,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4269,8 +4758,11 @@
         },
         "synthesizedSamplesDuration": {
           "__compat": {
-            "description": "<code>synthesizedSamplesDuration</code> in 'media-playout' stats",
+            "description": "`synthesizedSamplesDuration` in 'media-playout' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcaudioplayoutstats-synthesizedsamplesduration",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -4292,7 +4784,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4303,8 +4796,11 @@
         },
         "synthesizedSamplesEvents": {
           "__compat": {
-            "description": "<code>synthesizedSamplesEvents</code> in 'media-playout' stats",
+            "description": "`synthesizedSamplesEvents` in 'media-playout' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcaudioplayoutstats-synthesizedsamplesevents",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -4326,7 +4822,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4337,8 +4834,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'media-playout' stats",
+            "description": "`timestamp` in 'media-playout' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -4360,7 +4860,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4371,8 +4872,11 @@
         },
         "totalPlayoutDelay": {
           "__compat": {
-            "description": "<code>totalPlayoutDelay</code> in 'media-playout' stats",
+            "description": "`totalPlayoutDelay` in 'media-playout' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcaudioplayoutstats-totalplayoutdelay",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -4394,7 +4898,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4405,8 +4910,11 @@
         },
         "totalSamplesCount": {
           "__compat": {
-            "description": "<code>totalSamplesCount</code> in 'media-playout' stats",
+            "description": "`totalSamplesCount` in 'media-playout' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcaudioplayoutstats-totalsamplescount",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -4428,7 +4936,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4439,8 +4948,11 @@
         },
         "totalSamplesDuration": {
           "__compat": {
-            "description": "<code>totalSamplesDuration</code> in 'media-playout' stats",
+            "description": "`totalSamplesDuration` in 'media-playout' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcaudioplayoutstats-totalsamplesduration",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -4462,7 +4974,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4473,8 +4986,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'media-playout' stats",
+            "description": "`type` in 'media-playout' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -4496,7 +5012,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4508,9 +5025,12 @@
       },
       "type_media-source": {
         "__compat": {
-          "description": "<code>media-source</code> stats",
+          "description": "`media-source` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#media_source",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-media-source",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -4532,7 +5052,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4542,9 +5063,12 @@
         },
         "audioLevel": {
           "__compat": {
-            "description": "<code>audioLevel</code> in 'media-source' stats",
+            "description": "`audioLevel` in 'media-source' stats",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCAudioSourceStats/audioLevel",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcaudiosourcestats-audiolevel",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4566,7 +5090,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4577,9 +5102,12 @@
         },
         "frames": {
           "__compat": {
-            "description": "<code>frames</code> in 'media-source' stats for video",
+            "description": "`frames` in 'media-source' stats for video",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCVideoSourceStats/frames",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcvideosourcestats-frames",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "90"
@@ -4601,7 +5129,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4612,9 +5141,12 @@
         },
         "framesPerSecond": {
           "__compat": {
-            "description": "<code>framesPerSecond</code> in 'media-source' stats for video",
+            "description": "`framesPerSecond` in 'media-source' stats for video",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCVideoSourceStats/framesPerSecond",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcvideosourcestats-framespersecond",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4636,7 +5168,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4647,9 +5180,12 @@
         },
         "height": {
           "__compat": {
-            "description": "<code>height</code> in 'media-source' stats for video",
+            "description": "`height` in 'media-source' stats for video",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCVideoSourceStats/height",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcvideosourcestats-height",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4671,7 +5207,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4682,8 +5219,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'media-source' stats",
+            "description": "`id` in 'media-source' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4705,7 +5245,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4716,8 +5257,11 @@
         },
         "kind": {
           "__compat": {
-            "description": "<code>kind</code> in 'media-source' stats",
+            "description": "`kind` in 'media-source' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcmediasourcestats-kind",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4739,7 +5283,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4750,8 +5295,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'media-source' stats",
+            "description": "`timestamp` in 'media-source' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4773,7 +5321,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4784,9 +5333,12 @@
         },
         "totalAudioEnergy": {
           "__compat": {
-            "description": "<code>totalAudioEnergy</code> in 'media-source' stats",
+            "description": "`totalAudioEnergy` in 'media-source' stats",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCAudioSourceStats/totalAudioEnergy",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcaudiosourcestats-totalaudioenergy",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4808,7 +5360,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4819,9 +5372,12 @@
         },
         "totalSamplesDuration": {
           "__compat": {
-            "description": "<code>totalSamplesDuration</code> in 'media-source' stats",
+            "description": "`totalSamplesDuration` in 'media-source' stats",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCAudioSourceStats/totalSamplesDuration",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcaudiosourcestats-totalsamplesduration",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4843,7 +5399,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -4854,8 +5411,11 @@
         },
         "trackIdentifier": {
           "__compat": {
-            "description": "<code>trackIdentifier</code> in 'media-source' stats",
+            "description": "`trackIdentifier` in 'media-source' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcmediasourcestats-trackidentifier",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4877,7 +5437,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4888,8 +5449,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'media-source' stats",
+            "description": "`type` in 'media-source' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4911,7 +5475,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4922,9 +5487,12 @@
         },
         "width": {
           "__compat": {
-            "description": "<code>width</code> in 'media-source' stats for video",
+            "description": "`width` in 'media-source' stats for video",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCVideoSourceStats/width",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcvideosourcestats-width",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -4946,7 +5514,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4958,9 +5527,12 @@
       },
       "type_outbound-rtp": {
         "__compat": {
-          "description": "<code>outbound-rtp</code> stats",
+          "description": "`outbound-rtp` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#outbound_rtp",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-outbound-rtp",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -4982,7 +5554,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4992,8 +5565,11 @@
         },
         "active": {
           "__compat": {
-            "description": "<code>active</code> in 'outbound-rtp' stats",
+            "description": "`active` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-active",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "106"
@@ -5015,7 +5591,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -5026,8 +5603,11 @@
         },
         "bytesSent": {
           "__compat": {
-            "description": "<code>bytesSent</code> in 'outbound-rtp' stats",
+            "description": "`bytesSent` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcsentrtpstreamstats-bytessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5049,7 +5629,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5060,8 +5641,11 @@
         },
         "codecId": {
           "__compat": {
-            "description": "<code>codecId</code> in 'outbound-rtp' stats",
+            "description": "`codecId` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-codecid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5083,7 +5667,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5094,8 +5679,11 @@
         },
         "frameHeight": {
           "__compat": {
-            "description": "<code>frameHeight</code> in 'outbound-rtp' stats",
+            "description": "`frameHeight` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-frameheight",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "84"
@@ -5117,7 +5705,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5128,8 +5717,11 @@
         },
         "framesEncoded": {
           "__compat": {
-            "description": "<code>framesEncoded</code> in 'outbound-rtp' stats",
+            "description": "`framesEncoded` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-framesencoded",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5152,7 +5744,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5163,8 +5756,11 @@
         },
         "framesPerSecond": {
           "__compat": {
-            "description": "<code>framesPerSecond</code> in 'outbound-rtp' stats",
+            "description": "`framesPerSecond` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-framespersecond",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "84"
@@ -5186,7 +5782,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5197,8 +5794,11 @@
         },
         "framesSent": {
           "__compat": {
-            "description": "<code>framesSent</code> in 'outbound-rtp' stats",
+            "description": "`framesSent` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-framessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "84"
@@ -5220,7 +5820,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5231,8 +5832,11 @@
         },
         "frameWidth": {
           "__compat": {
-            "description": "<code>frameWidth</code> in 'outbound-rtp' stats",
+            "description": "`frameWidth` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-framewidth",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "84"
@@ -5254,7 +5858,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5265,8 +5870,11 @@
         },
         "headerBytesSent": {
           "__compat": {
-            "description": "<code>headerBytesSent</code> in 'outbound-rtp' stats",
+            "description": "`headerBytesSent` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-headerbytessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5288,7 +5896,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5299,8 +5908,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'outbound-rtp' stats",
+            "description": "`id` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5322,7 +5934,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5333,8 +5946,11 @@
         },
         "keyFramesEncoded": {
           "__compat": {
-            "description": "<code>keyFramesEncoded</code> in 'outbound-rtp' stats",
+            "description": "`keyFramesEncoded` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-keyframesencoded",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5356,7 +5972,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -5367,8 +5984,11 @@
         },
         "kind": {
           "__compat": {
-            "description": "<code>kind</code> in 'outbound-rtp' stats",
+            "description": "`kind` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-kind",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5390,7 +6010,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5401,8 +6022,11 @@
         },
         "mediaSourceId": {
           "__compat": {
-            "description": "<code>mediaSourceId</code> in 'outbound-rtp' stats",
+            "description": "`mediaSourceId` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-mediasourceid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5424,7 +6048,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5435,8 +6060,11 @@
         },
         "mid": {
           "__compat": {
-            "description": "<code>mid</code> in 'outbound-rtp' stats",
+            "description": "`mid` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-mid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -5458,7 +6086,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -5469,8 +6098,11 @@
         },
         "nackCount": {
           "__compat": {
-            "description": "<code>nackCount</code> in 'outbound-rtp' stats",
+            "description": "`nackCount` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-nackcount",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "93"
@@ -5492,7 +6124,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5503,8 +6136,11 @@
         },
         "packetsSent": {
           "__compat": {
-            "description": "<code>packetsSent</code> in 'outbound-rtp' stats",
+            "description": "`packetsSent` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcsentrtpstreamstats-packetssent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5526,7 +6162,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5537,8 +6174,11 @@
         },
         "qpSum": {
           "__compat": {
-            "description": "<code>qpSum</code> in 'outbound-rtp' stats",
+            "description": "`qpSum` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-qpsum",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5560,7 +6200,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5571,8 +6212,11 @@
         },
         "qualityLimitationDurations": {
           "__compat": {
-            "description": "<code>qualityLimitationDurations</code> in 'outbound-rtp' stats",
+            "description": "`qualityLimitationDurations` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-qualitylimitationdurations",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "93"
@@ -5594,7 +6238,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -5605,8 +6250,11 @@
         },
         "qualityLimitationReason": {
           "__compat": {
-            "description": "<code>qualityLimitationReason</code> in 'outbound-rtp' stats",
+            "description": "`qualityLimitationReason` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-qualitylimitationreason",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5628,7 +6276,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -5639,8 +6288,11 @@
         },
         "remoteId": {
           "__compat": {
-            "description": "<code>remoteId</code> in 'outbound-rtp' stats",
+            "description": "`remoteId` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-remoteid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "81"
@@ -5667,7 +6319,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5678,8 +6331,11 @@
         },
         "retransmittedBytesSent": {
           "__compat": {
-            "description": "<code>retransmittedBytesSent</code> in 'outbound-rtp' stats",
+            "description": "`retransmittedBytesSent` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-retransmittedbytessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5701,7 +6357,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5712,8 +6369,11 @@
         },
         "retransmittedPacketsSent": {
           "__compat": {
-            "description": "<code>retransmittedPacketsSent</code> in 'outbound-rtp' stats",
+            "description": "`retransmittedPacketsSent` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-retransmittedpacketssent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5735,7 +6395,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5746,8 +6407,11 @@
         },
         "scalabilityMode": {
           "__compat": {
-            "description": "<code>scalabilityMode</code> in 'outbound-rtp' stats",
+            "description": "`scalabilityMode` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-scalabilitymode",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "110"
@@ -5769,7 +6433,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -5780,8 +6445,11 @@
         },
         "ssrc": {
           "__compat": {
-            "description": "<code>ssrc</code> in 'outbound-rtp' stats",
+            "description": "`ssrc` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-ssrc",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5803,7 +6471,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5814,8 +6483,11 @@
         },
         "targetBitrate": {
           "__compat": {
-            "description": "<code>targetBitrate</code> in 'outbound-rtp' stats",
+            "description": "`targetBitrate` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-targetbitrate",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -5837,7 +6509,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5848,8 +6521,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'outbound-rtp' stats",
+            "description": "`timestamp` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5871,7 +6547,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5882,8 +6559,11 @@
         },
         "totalEncodedBytesTarget": {
           "__compat": {
-            "description": "<code>totalEncodedBytesTarget</code> in 'outbound-rtp' stats",
+            "description": "`totalEncodedBytesTarget` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-totalencodedbytestarget",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80",
@@ -5906,7 +6586,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -5917,8 +6598,11 @@
         },
         "totalEncodeTime": {
           "__compat": {
-            "description": "<code>totalEncodeTime</code> in 'outbound-rtp' stats",
+            "description": "`totalEncodeTime` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-totalencodetime",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5940,7 +6624,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5951,8 +6636,11 @@
         },
         "totalPacketSendDelay": {
           "__compat": {
-            "description": "<code>totalPacketSendDelay</code> in 'outbound-rtp' stats",
+            "description": "`totalPacketSendDelay` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-totalpacketsenddelay",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -5974,7 +6662,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5985,8 +6674,11 @@
         },
         "transportId": {
           "__compat": {
-            "description": "<code>transportId</code> in 'outbound-rtp' stats",
+            "description": "`transportId` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-transportid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6008,7 +6700,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6019,8 +6712,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'outbound-rtp' stats",
+            "description": "`type` in 'outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6042,7 +6738,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6054,9 +6751,12 @@
       },
       "type_peer-connection": {
         "__compat": {
-          "description": "<code>peer-connection</code> stats",
+          "description": "`peer-connection` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionStats",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-peer-connection",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -6078,7 +6778,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6088,9 +6789,12 @@
         },
         "dataChannelsClosed": {
           "__compat": {
-            "description": "<code>dataChannelsClosed</code> in 'peer-connection' stats",
+            "description": "`dataChannelsClosed` in 'peer-connection' stats",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionStats/dataChannelsClosed",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcpeerconnectionstats-datachannelsclosed",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6112,7 +6816,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6123,9 +6828,12 @@
         },
         "dataChannelsOpened": {
           "__compat": {
-            "description": "<code>dataChannelsOpened</code> in 'peer-connection' stats",
+            "description": "`dataChannelsOpened` in 'peer-connection' stats",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionStats/dataChannelsOpened",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcpeerconnectionstats-datachannelsopened",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6147,7 +6855,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6158,9 +6867,12 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'peer-connection' stats",
+            "description": "`id` in 'peer-connection' stats",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionStats/id",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6182,7 +6894,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6193,9 +6906,12 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'peer-connection' stats",
+            "description": "`timestamp` in 'peer-connection' stats",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionStats/timestamp",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6217,7 +6933,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6228,9 +6945,12 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'peer-connection' stats",
+            "description": "`type` in 'peer-connection' stats",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionStats/type",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6252,7 +6972,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6264,9 +6985,12 @@
       },
       "type_remote-candidate": {
         "__compat": {
-          "description": "<code>remote-candidate</code> stats",
+          "description": "`remote-candidate` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#remote_candidate",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-remote-candidate",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -6288,7 +7012,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6298,8 +7023,11 @@
         },
         "address": {
           "__compat": {
-            "description": "<code>address</code> in 'remote-candidate' stats",
+            "description": "`address` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-address",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -6327,7 +7055,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6338,8 +7067,11 @@
         },
         "candidateType": {
           "__compat": {
-            "description": "<code>candidateType</code> in 'remote-candidate' stats",
+            "description": "`candidateType` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-candidatetype",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6361,7 +7093,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6372,8 +7105,11 @@
         },
         "foundation": {
           "__compat": {
-            "description": "<code>foundation</code> in 'remote-candidate' stats",
+            "description": "`foundation` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-foundation",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -6395,7 +7131,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -6406,8 +7143,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'remote-candidate' stats",
+            "description": "`id` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6429,7 +7169,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6440,8 +7181,11 @@
         },
         "port": {
           "__compat": {
-            "description": "<code>port</code> in 'remote-candidate' stats",
+            "description": "`port` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-port",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6469,7 +7213,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6480,8 +7225,11 @@
         },
         "priority": {
           "__compat": {
-            "description": "<code>priority</code> in 'remote-candidate' stats",
+            "description": "`priority` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-priority",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6503,7 +7251,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6514,8 +7263,11 @@
         },
         "protocol": {
           "__compat": {
-            "description": "<code>protocol</code> in 'remote-candidate' stats",
+            "description": "`protocol` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-protocol",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6543,7 +7295,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6554,8 +7307,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'remote-candidate' stats",
+            "description": "`timestamp` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6577,7 +7333,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6588,8 +7345,11 @@
         },
         "transportId": {
           "__compat": {
-            "description": "<code>transportId</code> in 'remote-candidate' stats",
+            "description": "`transportId` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-transportid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6612,7 +7372,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6623,8 +7384,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'remote-candidate' stats",
+            "description": "`type` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6646,7 +7410,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6657,8 +7422,11 @@
         },
         "usernameFragment": {
           "__compat": {
-            "description": "<code>usernameFragment</code> in 'remote-candidate' stats",
+            "description": "`usernameFragment` in 'remote-candidate' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatestats-usernamefragment",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -6680,7 +7448,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -6692,9 +7461,12 @@
       },
       "type_remote-inbound-rtp": {
         "__compat": {
-          "description": "<code>remote-inbound-rtp</code> stats",
+          "description": "`remote-inbound-rtp` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#remote_inbound_rtp",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-remote-inbound-rtp",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -6716,7 +7488,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6726,8 +7499,11 @@
         },
         "codecId": {
           "__compat": {
-            "description": "<code>codecId</code> in 'remote-inbound-rtp' stats",
+            "description": "`codecId` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-codecid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6749,7 +7525,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6760,8 +7537,11 @@
         },
         "fractionLost": {
           "__compat": {
-            "description": "<code>fractionLost</code> in 'remote-inbound-rtp' stats",
+            "description": "`fractionLost` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteinboundrtpstreamstats-fractionlost",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -6783,7 +7563,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6794,8 +7575,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'remote-inbound-rtp' stats",
+            "description": "`id` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6817,7 +7601,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6828,8 +7613,11 @@
         },
         "jitter": {
           "__compat": {
-            "description": "<code>jitter</code> in 'remote-inbound-rtp' stats",
+            "description": "`jitter` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcreceivedrtpstreamstats-jitter",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6851,7 +7639,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6862,8 +7651,11 @@
         },
         "kind": {
           "__compat": {
-            "description": "<code>kind</code> in 'remote-inbound-rtp' stats",
+            "description": "`kind` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-kind",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6885,7 +7677,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6896,8 +7689,11 @@
         },
         "localId": {
           "__compat": {
-            "description": "<code>localId</code> in 'remote-inbound-rtp' stats",
+            "description": "`localId` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteinboundrtpstreamstats-localid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6919,7 +7715,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6930,8 +7727,11 @@
         },
         "packetsLost": {
           "__compat": {
-            "description": "<code>packetsLost</code> in 'remote-inbound-rtp' stats",
+            "description": "`packetsLost` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcreceivedrtpstreamstats-packetslost",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -6953,7 +7753,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6964,8 +7765,11 @@
         },
         "packetsReceived": {
           "__compat": {
-            "description": "<code>packetsReceived</code> in 'remote-inbound-rtp' stats",
+            "description": "`packetsReceived` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcreceivedrtpstreamstats-packetsreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -6987,7 +7791,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -6998,8 +7803,11 @@
         },
         "roundTripTime": {
           "__compat": {
-            "description": "<code>roundTripTime</code> in 'remote-inbound-rtp' stats",
+            "description": "`roundTripTime` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteinboundrtpstreamstats-roundtriptime",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -7021,7 +7829,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7032,8 +7841,11 @@
         },
         "roundTripTimeMeasurements": {
           "__compat": {
-            "description": "<code>roundTripTimeMeasurements</code> in 'remote-inbound-rtp' stats",
+            "description": "`roundTripTimeMeasurements` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteinboundrtpstreamstats-roundtriptimemeasurements",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7055,7 +7867,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7066,8 +7879,11 @@
         },
         "ssrc": {
           "__compat": {
-            "description": "<code>ssrc</code> in 'remote-inbound-rtp' stats",
+            "description": "`ssrc` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-ssrc",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -7089,7 +7905,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7100,8 +7917,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'remote-inbound-rtp' stats",
+            "description": "`timestamp` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -7123,7 +7943,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7134,8 +7955,11 @@
         },
         "totalRoundTripTime": {
           "__compat": {
-            "description": "<code>totalRoundTripTime</code> in 'remote-inbound-rtp' stats",
+            "description": "`totalRoundTripTime` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteinboundrtpstreamstats-totalroundtriptime",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7157,7 +7981,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7168,8 +7993,11 @@
         },
         "transportId": {
           "__compat": {
-            "description": "<code>transportId</code> in 'remote-inbound-rtp' stats",
+            "description": "`transportId` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-transportid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -7191,7 +8019,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7202,8 +8031,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'remote-inbound-rtp' stats",
+            "description": "`type` in 'remote-inbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -7225,7 +8057,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7237,9 +8070,12 @@
       },
       "type_remote-outbound-rtp": {
         "__compat": {
-          "description": "<code>remote-outbound-rtp</code> stats",
+          "description": "`remote-outbound-rtp` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#remote_outbound_rtp",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-remote-outbound-rtp",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "91"
@@ -7261,7 +8097,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7271,8 +8108,11 @@
         },
         "bytesSent": {
           "__compat": {
-            "description": "<code>bytesSent</code> in 'remote-outbound-rtp' stats",
+            "description": "`bytesSent` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcsentrtpstreamstats-bytessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7294,7 +8134,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7305,8 +8146,11 @@
         },
         "codecId": {
           "__compat": {
-            "description": "<code>codecId</code> in 'remote-outbound-rtp' stats",
+            "description": "`codecId` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-codecid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7328,7 +8172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7339,8 +8184,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'remote-outbound-rtp' stats",
+            "description": "`id` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7362,7 +8210,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7373,8 +8222,11 @@
         },
         "kind": {
           "__compat": {
-            "description": "<code>kind</code> in 'remote-outbound-rtp' stats",
+            "description": "`kind` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-kind",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7396,7 +8248,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7407,8 +8260,11 @@
         },
         "localId": {
           "__compat": {
-            "description": "<code>localId</code> in 'remote-outbound-rtp' stats",
+            "description": "`localId` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteoutboundrtpstreamstats-localid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7430,7 +8286,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7441,8 +8298,11 @@
         },
         "packetsSent": {
           "__compat": {
-            "description": "<code>packetsSent</code> in 'remote-outbound-rtp' stats",
+            "description": "`packetsSent` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcsentrtpstreamstats-packetssent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7464,7 +8324,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7475,8 +8336,11 @@
         },
         "remoteTimestamp": {
           "__compat": {
-            "description": "<code>remoteTimestamp</code> in 'remote-outbound-rtp' stats",
+            "description": "`remoteTimestamp` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteoutboundrtpstreamstats-remotetimestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7498,7 +8362,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7509,8 +8374,11 @@
         },
         "reportsSent": {
           "__compat": {
-            "description": "<code>reportsSent</code> in 'remote-outbound-rtp' stats",
+            "description": "`reportsSent` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteoutboundrtpstreamstats-reportssent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7532,7 +8400,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -7543,8 +8412,11 @@
         },
         "roundTripTimeMeasurements": {
           "__compat": {
-            "description": "<code>roundTripTimeMeasurements</code> in 'remote-outbound-rtp' stats",
+            "description": "`roundTripTimeMeasurements` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteoutboundrtpstreamstats-roundtriptimemeasurements",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "96"
@@ -7566,7 +8438,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -7577,8 +8450,11 @@
         },
         "ssrc": {
           "__compat": {
-            "description": "<code>ssrc</code> in 'remote-outbound-rtp' stats",
+            "description": "`ssrc` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-ssrc",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7600,7 +8476,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7611,8 +8488,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'remote-outbound-rtp' stats",
+            "description": "`timestamp` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7634,7 +8514,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7645,8 +8526,11 @@
         },
         "totalRoundTripTime": {
           "__compat": {
-            "description": "<code>totalRoundTripTime</code> in 'remote-outbound-rtp' stats",
+            "description": "`totalRoundTripTime` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcremoteoutboundrtpstreamstats-totalroundtriptime",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "96"
@@ -7668,7 +8552,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -7679,8 +8564,11 @@
         },
         "transportId": {
           "__compat": {
-            "description": "<code>transportId</code> in 'remote-outbound-rtp' stats",
+            "description": "`transportId` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcrtpstreamstats-transportid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7702,7 +8590,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7713,8 +8602,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'remote-outbound-rtp' stats",
+            "description": "`type` in 'remote-outbound-rtp' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -7736,7 +8628,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7748,9 +8641,12 @@
       },
       "type_transport": {
         "__compat": {
-          "description": "<code>transport</code> stats",
+          "description": "`transport` stats",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport#transport",
           "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstatstype-transport",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -7772,7 +8668,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7782,8 +8679,11 @@
         },
         "bytesReceived": {
           "__compat": {
-            "description": "<code>bytesReceived</code> in 'transport' stats",
+            "description": "`bytesReceived` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-bytesreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -7805,7 +8705,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7816,8 +8717,11 @@
         },
         "bytesSent": {
           "__compat": {
-            "description": "<code>bytesSent</code> in 'transport' stats",
+            "description": "`bytesSent` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-bytessent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -7839,7 +8743,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7850,8 +8755,11 @@
         },
         "dtlsCipher": {
           "__compat": {
-            "description": "<code>dtlsCipher</code> in 'transport' stats",
+            "description": "`dtlsCipher` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-dtlscipher",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -7873,7 +8781,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7884,8 +8793,11 @@
         },
         "dtlsRole": {
           "__compat": {
-            "description": "<code>dtlsRole</code> in 'transport' stats",
+            "description": "`dtlsRole` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-dtlsrole",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -7907,7 +8819,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -7918,8 +8831,11 @@
         },
         "dtlsState": {
           "__compat": {
-            "description": "<code>dtlsState</code> in 'transport' stats",
+            "description": "`dtlsState` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-dtlsstate",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -7941,7 +8857,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7952,8 +8869,11 @@
         },
         "iceLocalUsernameFragment": {
           "__compat": {
-            "description": "<code>iceLocalUsernameFragment</code> in 'transport' stats",
+            "description": "`iceLocalUsernameFragment` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-icelocalusernamefragment",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -7975,7 +8895,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -7986,8 +8907,11 @@
         },
         "iceRole": {
           "__compat": {
-            "description": "<code>iceRole</code> in 'transport' stats",
+            "description": "`iceRole` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-icerole",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -8009,7 +8933,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -8020,8 +8945,11 @@
         },
         "iceState": {
           "__compat": {
-            "description": "<code>iceState</code> in 'transport' stats",
+            "description": "`iceState` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-icestate",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -8043,7 +8971,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -8054,8 +8983,11 @@
         },
         "id": {
           "__compat": {
-            "description": "<code>id</code> in 'transport' stats",
+            "description": "`id` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-id",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -8077,7 +9009,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8088,8 +9021,11 @@
         },
         "localCertificateId": {
           "__compat": {
-            "description": "<code>localCertificateId</code> in 'transport' stats",
+            "description": "`localCertificateId` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-localcertificateid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -8111,7 +9047,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8122,8 +9059,11 @@
         },
         "packetsReceived": {
           "__compat": {
-            "description": "<code>packetsReceived</code> in 'transport' stats",
+            "description": "`packetsReceived` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-packetsreceived",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -8145,7 +9085,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -8156,8 +9097,11 @@
         },
         "packetsSent": {
           "__compat": {
-            "description": "<code>packetsSent</code> in 'transport' stats",
+            "description": "`packetsSent` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-packetssent",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -8179,7 +9123,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -8190,8 +9135,11 @@
         },
         "remoteCertificateId": {
           "__compat": {
-            "description": "<code>remoteCertificateId</code> in 'transport' stats",
+            "description": "`remoteCertificateId` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-remotecertificateid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -8213,7 +9161,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8224,8 +9173,11 @@
         },
         "selectedCandidatePairChanges": {
           "__compat": {
-            "description": "<code>selectedCandidatePairChanges</code> in 'transport' stats",
+            "description": "`selectedCandidatePairChanges` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-selectedcandidatepairchanges",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -8247,7 +9199,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8258,8 +9211,11 @@
         },
         "selectedCandidatePairId": {
           "__compat": {
-            "description": "<code>selectedCandidatePairId</code> in 'transport' stats",
+            "description": "`selectedCandidatePairId` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-selectedcandidatepairid",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -8281,7 +9237,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8292,8 +9249,11 @@
         },
         "srtpCipher": {
           "__compat": {
-            "description": "<code>srtpCipher</code> in 'transport' stats",
+            "description": "`srtpCipher` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-srtpcipher",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -8315,7 +9275,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8326,8 +9287,11 @@
         },
         "timestamp": {
           "__compat": {
-            "description": "<code>timestamp</code> in 'transport' stats",
+            "description": "`timestamp` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-timestamp",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -8349,7 +9313,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8360,8 +9325,11 @@
         },
         "tlsVersion": {
           "__compat": {
-            "description": "<code>tlsVersion</code> in 'transport' stats",
+            "description": "`tlsVersion` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtctransportstats-tlsversion",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -8383,7 +9351,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8394,8 +9363,11 @@
         },
         "type": {
           "__compat": {
-            "description": "<code>type</code> in 'transport' stats",
+            "description": "`type` in 'transport' stats",
             "spec_url": "https://w3c.github.io/webrtc-stats/#dom-rtcstats-type",
+            "tags": [
+              "web-features:webrtc-stats"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -8417,7 +9389,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8430,6 +9403,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport/values",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -8451,7 +9427,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8464,6 +9441,9 @@
         "__compat": {
           "description": "[Symbol.iterator]",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCStatsReport/Symbol.iterator",
+          "tags": [
+            "web-features:webrtc-stats"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -8485,7 +9465,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCTrackEvent.json b/api/RTCTrackEvent.json
index e1b0322bff051c..9eafe9c8f90978 100644
--- a/api/RTCTrackEvent.json
+++ b/api/RTCTrackEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCTrackEvent",
         "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtctrackevent",
+        "tags": [
+          "web-features:webrtc"
+        ],
         "support": {
           "chrome": {
             "version_added": "56"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,9 +41,12 @@
       },
       "RTCTrackEvent": {
         "__compat": {
-          "description": "<code>RTCTrackEvent()</code> constructor",
+          "description": "`RTCTrackEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCTrackEvent/RTCTrackEvent",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtctrackevent-constructor",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -61,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,6 +82,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCTrackEvent/receiver",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-trackevent-receiver",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +120,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCTrackEvent/streams",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtctrackevent-streams",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -131,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,6 +160,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCTrackEvent/track",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-rtctrackevent-track",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -167,7 +186,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -180,6 +200,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RTCTrackEvent/transceiver",
           "spec_url": "https://w3c.github.io/webrtc-pc/#dom-trackevent-transceiver",
+          "tags": [
+            "web-features:webrtc"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -207,7 +230,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCTransformEvent.json b/api/RTCTransformEvent.json
index aef71d3e3b8bc7..aa0f6ca557936d 100644
--- a/api/RTCTransformEvent.json
+++ b/api/RTCTransformEvent.json
@@ -9,7 +9,8 @@
         ],
         "support": {
           "chrome": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://crbug.com/354881878"
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -28,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RadioNodeList.json b/api/RadioNodeList.json
index 65c08d372fdacf..84cecabd1dba9a 100644
--- a/api/RadioNodeList.json
+++ b/api/RadioNodeList.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Range.json b/api/Range.json
index feec56fed1ec6b..42b9f86b56e19e 100644
--- a/api/Range.json
+++ b/api/Range.json
@@ -8,6 +8,9 @@
           "https://w3c.github.io/DOM-Parsing/#extensions-to-the-range-interface",
           "https://drafts.csswg.org/cssom-view/#extensions-to-the-range-interface"
         ],
+        "tags": [
+          "web-features:selection-api"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -18,7 +21,7 @@
           },
           "firefox": {
             "version_added": "1",
-            "notes": "Starting with Firefox 13, the <code>Range</code> object throws a <code>DOMException</code> as defined in DOM 4, instead of a <code>RangeException</code> defined in prior specifications."
+            "notes": "Starting with Firefox 13, the `Range` object throws a `DOMException` as defined in DOM 4, instead of a `RangeException` defined in prior specifications."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -36,7 +39,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,9 +50,12 @@
       },
       "Range": {
         "__compat": {
-          "description": "<code>Range()</code> constructor",
+          "description": "`Range()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/Range",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-range②",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -72,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,6 +93,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/cloneContents",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-clonecontents",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -112,7 +123,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,6 +137,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/cloneRange",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-clonerange",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -152,7 +167,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -165,6 +181,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/collapse",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-collapse",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -192,7 +211,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -202,7 +222,7 @@
         },
         "toStart_parameter_optional": {
           "__compat": {
-            "description": "<code>toStart</code> parameter is optional",
+            "description": "`toStart` parameter is optional",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -217,7 +237,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": false,
-                "notes": "Optional but defaults to <code>true</code>."
+                "notes": "Optional but defaults to `true`."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -227,7 +247,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -241,6 +262,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/collapsed",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-collapsed①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -268,7 +292,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -281,6 +306,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/commonAncestorContainer",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-commonancestorcontainer②",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -308,7 +336,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -321,6 +350,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/compareBoundaryPoints",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-compareboundarypoints",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -348,7 +380,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -385,7 +418,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -398,6 +432,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/comparePoint",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-comparepoint①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -427,7 +464,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -440,6 +478,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/createContextualFragment",
           "spec_url": "https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-range-createcontextualfragment",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -467,7 +508,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -480,6 +522,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/deleteContents",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-deletecontents",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -507,7 +552,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -520,6 +566,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/detach",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-detach",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
@@ -549,11 +598,12 @@
             },
             "safari": {
               "version_added": "1",
-              "notes": "Starting in Safari 10, this method is a no-op and has no effect, see <a href='https://webkit.org/b/148454'>bug 148454</a>."
+              "notes": "Starting in Safari 10, this method is a no-op and has no effect, see [bug 148454](https://webkit.org/b/148454)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -566,6 +616,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/endContainer",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-endcontainer①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -593,7 +646,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -606,6 +660,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/endOffset",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-endoffset①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -633,7 +690,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -646,6 +704,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/extractContents",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-extractcontents",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -673,7 +734,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -717,7 +779,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -761,7 +824,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -774,6 +838,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/insertNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-insertnode",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -801,7 +868,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -814,6 +882,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/intersectsNode",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-intersectsnode①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -845,7 +916,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -858,6 +930,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/isPointInRange",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-ispointinrange",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -887,7 +962,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -900,6 +976,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/selectNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-selectnode",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -927,7 +1006,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -940,6 +1020,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/selectNodeContents",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-selectnodecontents",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -967,7 +1050,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -980,6 +1064,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/setEnd",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-setend",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1007,7 +1094,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1020,6 +1108,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/setEndAfter",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-setendafter",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1047,7 +1138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1060,6 +1152,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/setEndBefore",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-setendbefore",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1087,7 +1182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1100,6 +1196,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/setStart",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-setstart",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1127,7 +1226,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1140,6 +1240,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/setStartAfter",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-setstartafter",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1167,7 +1270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1180,6 +1284,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/setStartBefore",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-setstartbefore",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1207,7 +1314,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1220,6 +1328,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/startContainer",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-startcontainer①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1247,7 +1358,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1260,6 +1372,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/startOffset",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-startoffset①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1287,7 +1402,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1300,6 +1416,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/surroundContents",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-surroundcontents",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1327,7 +1446,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1340,6 +1460,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Range/toString",
           "spec_url": "https://dom.spec.whatwg.org/#dom-range-stringifier",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1367,7 +1490,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ReadableByteStreamController.json b/api/ReadableByteStreamController.json
index 1a35e187d3106a..e45b67ea3185fe 100644
--- a/api/ReadableByteStreamController.json
+++ b/api/ReadableByteStreamController.json
@@ -17,7 +17,7 @@
               "version_added": "1.0",
               "version_removed": "1.11",
               "partial_implementation": true,
-              "notes": "<code>ReadableByteStreamController</code> is not exposed on the global scope."
+              "notes": "`ReadableByteStreamController` is not exposed on the global scope."
             }
           ],
           "edge": "mirror",
@@ -30,15 +30,13 @@
           },
           "nodejs": [
             {
-              "version_added": "18.0.0"
+              "version_added": "18.0.0",
+              "notes": "Before 18.10.0, handling a BYOB pull request from a released reader is not supported."
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -49,7 +47,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -88,7 +87,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,7 +128,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,7 +210,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -248,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ReadableStream.json b/api/ReadableStream.json
index 44fd31ab561348..f35fc9f4371791 100644
--- a/api/ReadableStream.json
+++ b/api/ReadableStream.json
@@ -31,11 +31,8 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -46,7 +43,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,7 +54,7 @@
       },
       "ReadableStream": {
         "__compat": {
-          "description": "<code>ReadableStream()</code> constructor",
+          "description": "`ReadableStream()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ReadableStream/ReadableStream",
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-rs-constructor⑤",
           "tags": [
@@ -89,7 +87,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,7 +133,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -145,7 +145,7 @@
       },
       "from_static": {
         "__compat": {
-          "description": "<code>from()</code> static method",
+          "description": "`from()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ReadableStream/from_static",
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-rs-from",
           "support": {
@@ -175,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -220,7 +221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -265,7 +267,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -308,7 +311,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -351,7 +355,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -384,7 +389,8 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": "16.5.0"
+              "version_added": "16.5.0",
+              "notes": "Before 18.10.0 or 16.18.0, teeing a readable byte stream is not supported."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -394,7 +400,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -424,7 +431,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": false
+              "version_added": "16.5.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -434,7 +441,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -473,7 +481,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -513,11 +522,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/194379"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ReadableStreamBYOBReader.json b/api/ReadableStreamBYOBReader.json
index 94fb3fe5ef8bed..d43424c7749854 100644
--- a/api/ReadableStreamBYOBReader.json
+++ b/api/ReadableStreamBYOBReader.json
@@ -26,11 +26,8 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -41,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -51,7 +49,7 @@
       },
       "ReadableStreamBYOBReader": {
         "__compat": {
-          "description": "<code>ReadableStreamBYOBReader()</code> constructor",
+          "description": "`ReadableStreamBYOBReader()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBReader/ReadableStreamBYOBReader",
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-byob-reader-constructor①",
           "support": {
@@ -81,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -121,7 +120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,13 +202,63 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "options_min_parameter": {
+          "__compat": {
+            "description": "`options.min` parameter",
+            "spec_url": "https://streams.spec.whatwg.org/#dom-readablestreambyobreaderreadoptions-min",
+            "support": {
+              "chrome": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/40942083"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "134"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": [
+                {
+                  "version_added": "21.7.0"
+                },
+                {
+                  "version_added": "20.17.0",
+                  "version_removed": "21.0.0"
+                }
+              ],
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false,
+                "impl_url": "https://webkit.org/b/264731"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "releaseLock": {
@@ -241,7 +292,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +306,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "notes": "<code>releaseLock()</code> throws if there are pending read requests (rather than pending read requests being rejected)."
+                "notes": "`releaseLock()` throws if there are pending read requests (rather than pending read requests being rejected)."
               },
               "chrome_android": "mirror",
               "deno": {
@@ -279,7 +331,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/ReadableStreamBYOBRequest.json b/api/ReadableStreamBYOBRequest.json
index aceca5cb002f0c..4cee4442963628 100644
--- a/api/ReadableStreamBYOBRequest.json
+++ b/api/ReadableStreamBYOBRequest.json
@@ -26,11 +26,8 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -41,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -160,7 +160,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ReadableStreamDefaultController.json b/api/ReadableStreamDefaultController.json
index 6779d0faf2c608..ddc832f2d65135 100644
--- a/api/ReadableStreamDefaultController.json
+++ b/api/ReadableStreamDefaultController.json
@@ -6,7 +6,7 @@
         "spec_url": "https://streams.spec.whatwg.org/#rs-default-controller-class",
         "support": {
           "chrome": {
-            "version_added": "≤80"
+            "version_added": "52"
           },
           "chrome_android": "mirror",
           "deno": [
@@ -17,7 +17,7 @@
               "version_added": "1.0",
               "version_removed": "1.7",
               "partial_implementation": true,
-              "notes": "<code>ReadableStreamDefaultController</code> is not exposed on the global scope."
+              "notes": "`ReadableStreamDefaultController` is not exposed on the global scope."
             }
           ],
           "edge": "mirror",
@@ -34,22 +34,20 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": "≤13.1"
+            "version_added": "10"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -63,7 +61,7 @@
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-rs-default-controller-close①",
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "52"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -84,11 +82,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "10"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +102,7 @@
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-rs-default-controller-desired-size②",
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "52"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -124,11 +123,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "10"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,7 +143,7 @@
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-rs-default-controller-enqueue①",
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "52"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -164,11 +164,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "10"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -183,7 +184,7 @@
           "spec_url": "https://streams.spec.whatwg.org/#rs-default-controller-error",
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "52"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -204,11 +205,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "10"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ReadableStreamDefaultReader.json b/api/ReadableStreamDefaultReader.json
index 25ecaaae8ca2d5..af2cc0d34bf6e0 100644
--- a/api/ReadableStreamDefaultReader.json
+++ b/api/ReadableStreamDefaultReader.json
@@ -6,7 +6,7 @@
         "spec_url": "https://streams.spec.whatwg.org/#default-reader-class",
         "support": {
           "chrome": {
-            "version_added": "78"
+            "version_added": "43"
           },
           "chrome_android": "mirror",
           "deno": [
@@ -17,7 +17,7 @@
               "version_added": "1.0",
               "version_removed": "1.7",
               "partial_implementation": true,
-              "notes": "<code>ReadableStreamDefaultReader</code> is not exposed on the global scope."
+              "notes": "`ReadableStreamDefaultReader` is not exposed on the global scope."
             }
           ],
           "edge": "mirror",
@@ -34,22 +34,20 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": "≤13.1"
+            "version_added": "10"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -59,7 +57,7 @@
       },
       "ReadableStreamDefaultReader": {
         "__compat": {
-          "description": "<code>ReadableStreamDefaultReader()</code> constructor",
+          "description": "`ReadableStreamDefaultReader()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultReader/ReadableStreamDefaultReader",
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-default-reader-constructor①",
           "support": {
@@ -89,7 +87,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +103,7 @@
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-generic-reader-cancel②",
           "support": {
             "chrome": {
-              "version_added": "78"
+              "version_added": "43"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -125,11 +124,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "10"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,7 +144,7 @@
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-generic-reader-closed②",
           "support": {
             "chrome": {
-              "version_added": "78"
+              "version_added": "43"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -165,11 +165,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "10"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -184,7 +185,7 @@
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-default-reader-read①",
           "support": {
             "chrome": {
-              "version_added": "78"
+              "version_added": "43"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -205,11 +206,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "10"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,7 +226,7 @@
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-default-reader-release-lock②",
           "support": {
             "chrome": {
-              "version_added": "78"
+              "version_added": "43"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -245,11 +247,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "10"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,7 +265,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "notes": "<code>releaseLock()</code> throws if there are pending read requests (rather than pending read requests being rejected)."
+                "notes": "`releaseLock()` throws if there are pending read requests (rather than pending read requests being rejected)."
               },
               "chrome_android": "mirror",
               "deno": {
@@ -287,7 +290,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/Rect.json b/api/Rect.json
index 23be8e45f2847d..188a105b6418ad 100644
--- a/api/Rect.json
+++ b/api/Rect.json
@@ -27,7 +27,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -98,7 +100,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,7 +137,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -170,7 +174,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RelativeOrientationSensor.json b/api/RelativeOrientationSensor.json
index 95ceac9dc9a2fe..e4c51644664bac 100644
--- a/api/RelativeOrientationSensor.json
+++ b/api/RelativeOrientationSensor.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "RelativeOrientationSensor": {
         "__compat": {
-          "description": "<code>RelativeOrientationSensor()</code> constructor",
+          "description": "`RelativeOrientationSensor()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RelativeOrientationSensor/RelativeOrientationSensor",
           "spec_url": "https://w3c.github.io/orientation-sensor/#dom-relativeorientationsensor-relativeorientationsensor",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RemotePlayback.json b/api/RemotePlayback.json
index e9f2201b9dd038..43970eb8915ce3 100644
--- a/api/RemotePlayback.json
+++ b/api/RemotePlayback.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/RemotePlayback",
         "spec_url": "https://w3c.github.io/remote-playback/#remoteplayback-interface",
+        "tags": [
+          "web-features:remote-playback"
+        ],
         "support": {
           "chrome": {
             "version_added": "121"
@@ -29,8 +32,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/521319"
-          }
+            "impl_url": "https://crbug.com/234081017"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RemotePlayback/cancelWatchAvailability",
           "spec_url": "https://w3c.github.io/remote-playback/#dom-remoteplayback-cancelwatchavailability",
+          "tags": [
+            "web-features:remote-playback"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -67,7 +74,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,9 +86,12 @@
       },
       "connect_event": {
         "__compat": {
-          "description": "<code>connect</code> event",
+          "description": "`connect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RemotePlayback/connect_event",
           "spec_url": "https://w3c.github.io/remote-playback/#dom-remoteplayback-onconnect",
+          "tags": [
+            "web-features:remote-playback"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -106,7 +117,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,9 +129,12 @@
       },
       "connecting_event": {
         "__compat": {
-          "description": "<code>connecting</code> event",
+          "description": "`connecting` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RemotePlayback/connecting_event",
           "spec_url": "https://w3c.github.io/remote-playback/#dom-remoteplayback-onconnecting",
+          "tags": [
+            "web-features:remote-playback"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -145,7 +160,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,9 +172,12 @@
       },
       "disconnect_event": {
         "__compat": {
-          "description": "<code>disconnect</code> event",
+          "description": "`disconnect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RemotePlayback/disconnect_event",
           "spec_url": "https://w3c.github.io/remote-playback/#dom-remoteplayback-ondisconnect",
+          "tags": [
+            "web-features:remote-playback"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -184,7 +203,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -197,6 +217,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RemotePlayback/prompt",
           "spec_url": "https://w3c.github.io/remote-playback/#dom-remoteplayback-prompt",
+          "tags": [
+            "web-features:remote-playback"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -222,7 +245,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -235,6 +259,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RemotePlayback/state",
           "spec_url": "https://w3c.github.io/remote-playback/#dom-remoteplayback-state",
+          "tags": [
+            "web-features:remote-playback"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -260,7 +287,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -273,6 +301,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/RemotePlayback/watchAvailability",
           "spec_url": "https://w3c.github.io/remote-playback/#dom-remoteplayback-watchavailability",
+          "tags": [
+            "web-features:remote-playback"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -298,7 +329,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Report.json b/api/Report.json
index 0bbef31d5e4802..875a3efa14d744 100644
--- a/api/Report.json
+++ b/api/Report.json
@@ -33,7 +33,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,7 +199,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ReportBody.json b/api/ReportBody.json
index 4a45e0f6512ca1..1dcd439be41ca8 100644
--- a/api/ReportBody.json
+++ b/api/ReportBody.json
@@ -32,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ReportingObserver.json b/api/ReportingObserver.json
index ee37c66acdeefb..6ba1a9bbb80ae5 100644
--- a/api/ReportingObserver.json
+++ b/api/ReportingObserver.json
@@ -32,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "ReportingObserver": {
         "__compat": {
-          "description": "<code>ReportingObserver()</code> constructor",
+          "description": "`ReportingObserver()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ReportingObserver/ReportingObserver",
           "spec_url": "https://w3c.github.io/reporting/#dom-reportingobserver-reportingobserver",
           "support": {
@@ -73,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,7 +120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -159,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,7 +204,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,7 +246,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Request.json b/api/Request.json
index 1c34203402229c..5abc6c313a4df4 100644
--- a/api/Request.json
+++ b/api/Request.json
@@ -44,7 +44,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,7 +55,7 @@
       },
       "Request": {
         "__compat": {
-          "description": "<code>Request()</code> constructor",
+          "description": "`Request()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/Request",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-request①",
           "tags": [
@@ -63,12 +64,12 @@
           "support": {
             "chrome": {
               "version_added": "40",
-              "notes": "From Chrome 47, default values for the <code>init</code> argument's properties changed. <code>mode</code> defaults to <code>same-origin</code> (from <code>no-cors</code>). <code>credentials</code> defaults to <code>include</code> (from <code>same-origin</code>). <code>redirect</code> defaults to <code>follow</code> (from <code>manual</code>)."
+              "notes": "From Chrome 47, default values for the `init` argument's properties changed. `mode` defaults to `same-origin` (from `no-cors`). `credentials` defaults to `include` (from `same-origin`). `redirect` defaults to `follow` (from `manual`)."
             },
             "chrome_android": "mirror",
             "deno": {
               "version_added": "1.0",
-              "notes": "Fetching with a <code>\"manual\"</code> redirect mode does not result in a <code>\"opaqueredirect\"</code> response, but a regular response."
+              "notes": "Fetching with a `\"manual\"` redirect mode does not result in a `\"opaqueredirect\"` response, but a regular response."
             },
             "edge": {
               "version_added": "14"
@@ -95,7 +96,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,7 +107,10 @@
         },
         "cross_origin_stripped": {
           "__compat": {
-            "description": "cross-origin <code>referrer</code> stripped out and <code>navigate</code> mode converted to <code>same-origin</code> when constructor created from existing <code>Request</code> object.",
+            "description": "cross-origin `referrer` stripped out and `navigate` mode converted to `same-origin` when constructor created from existing `Request` object.",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -132,7 +137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -143,11 +149,14 @@
         },
         "init_attributionReporting_parameter": {
           "__compat": {
-            "description": "<code>init.attributionReporting</code> parameter",
+            "description": "`init.attributionReporting` parameter",
             "spec_url": "https://wicg.github.io/attribution-reporting-api/#dom-requestinit-attributionreporting",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "125"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -166,7 +175,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -177,7 +187,7 @@
         },
         "init_browsingTopics_parameter": {
           "__compat": {
-            "description": "<code>init.browsingTopics</code> parameter",
+            "description": "`init.browsingTopics` parameter",
             "support": {
               "chrome": {
                 "version_added": "115"
@@ -199,7 +209,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -208,9 +219,56 @@
             }
           }
         },
+        "init_keepalive_parameter": {
+          "__compat": {
+            "description": "`init.keepalive` parameter",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/keepalive",
+            "spec_url": "https://fetch.spec.whatwg.org/#dom-requestinit-keepalive",
+            "tags": [
+              "web-features:fetch-keepalive"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "66"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": "15"
+              },
+              "firefox": {
+                "version_added": "133"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": "18.0.0"
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "13"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "init_priority_parameter": {
           "__compat": {
-            "description": "<code>init.priority</code> parameter",
+            "description": "`init.priority` parameter",
             "spec_url": "https://fetch.spec.whatwg.org/#dom-requestinit-priority",
             "tags": [
               "web-features:fetch-priority"
@@ -225,7 +283,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": "132"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -239,7 +297,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -250,8 +309,11 @@
         },
         "init_referrer_parameter": {
           "__compat": {
-            "description": "<code>init.referrer</code> parameter",
+            "description": "`init.referrer` parameter",
             "spec_url": "https://fetch.spec.whatwg.org/#dom-requestinit-referrer",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "47"
@@ -278,7 +340,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -289,7 +352,10 @@
         },
         "request_body_readablestream": {
           "__compat": {
-            "description": "Send <code>ReadableStream</code> in request body",
+            "description": "Send `ReadableStream` in request body",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -314,7 +380,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -325,7 +392,10 @@
         },
         "response_body_readablestream": {
           "__compat": {
-            "description": "Consume <code>ReadableStream</code> as a response body",
+            "description": "Consume `ReadableStream` as a response body",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "43"
@@ -356,7 +426,8 @@
                 "version_added": "10.3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -402,7 +473,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -447,7 +519,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -460,10 +533,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/body",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-body-body①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "105",
-              "impl_url": "https://crbug.com/688906"
+              "impl_url": "https://crbug.com/40505032"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -489,7 +565,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -534,7 +611,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -547,9 +625,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/bytes",
           "spec_url": "https://fetch.spec.whatwg.org/#dom-body-bytes",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "132"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -571,7 +652,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -584,6 +666,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/cache",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-request-cache②",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -613,7 +698,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -623,9 +709,12 @@
         },
         "only-if-cached": {
           "__compat": {
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "64"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -648,11 +737,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "10.1"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -698,7 +788,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -743,7 +834,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -753,7 +845,10 @@
         },
         "default_same-origin": {
           "__compat": {
-            "description": "Default value <code>same-origin</code>",
+            "description": "Default value `same-origin`",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "72"
@@ -787,7 +882,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -801,6 +897,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/destination",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-request-destination①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -830,7 +929,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -839,10 +939,49 @@
           }
         }
       },
+      "duplex": {
+        "__compat": {
+          "spec_url": "https://fetch.spec.whatwg.org/#dom-request-duplex",
+          "support": {
+            "chrome": {
+              "version_added": "131"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "formData": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/formData",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-body-formdata①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -872,12 +1011,13 @@
               {
                 "version_added": "11.1",
                 "partial_implementation": true,
-                "notes": "The method exists but always rejects with <code>NotSupportedError</code>. See <a href='https://webkit.org/b/215671'>bug 215671</a>."
+                "notes": "The method exists but always rejects with `NotSupportedError`. See [bug 215671](https://webkit.org/b/215671)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -922,7 +1062,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -935,6 +1076,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/integrity",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-request-integrity②",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -964,7 +1108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -975,7 +1120,11 @@
       },
       "isHistoryNavigation": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/isHistoryNavigation",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-request-ishistorynavigation①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -1003,7 +1152,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1048,7 +1198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1059,7 +1210,11 @@
       },
       "keepalive": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/keepalive",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-request-keepalive②",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -1072,7 +1227,7 @@
               "version_added": "15"
             },
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1089,7 +1244,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1134,7 +1290,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1179,7 +1336,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1189,7 +1347,10 @@
         },
         "navigate_mode": {
           "__compat": {
-            "description": "<code>navigate</code> mode",
+            "description": "`navigate` mode",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -1222,7 +1383,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1236,6 +1398,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/redirect",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-request-redirect②",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -1243,7 +1408,7 @@
             "chrome_android": "mirror",
             "deno": {
               "version_added": "1.0",
-              "notes": "Fetching with a <code>\"manual\"</code> redirect mode does not result in a <code>\"opaqueredirect\"</code> response, but a regular response."
+              "notes": "Fetching with a `\"manual\"` redirect mode does not result in a `\"opaqueredirect\"` response, but a regular response."
             },
             "edge": {
               "version_added": "14"
@@ -1266,7 +1431,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1279,6 +1445,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/referrer",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-request-referrer①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "40"
@@ -1308,7 +1477,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1321,6 +1491,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Request/referrerPolicy",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-request-referrerpolicy②",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -1352,7 +1525,8 @@
             "samsunginternet_android": {
               "version_added": "7.2"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1397,7 +1571,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1409,6 +1584,9 @@
       "targetAddressSpace": {
         "__compat": {
           "spec_url": "https://wicg.github.io/private-network-access/#dom-request-targetaddressspace",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "124"
@@ -1430,7 +1608,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1475,7 +1654,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1524,7 +1704,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ResizeObserver.json b/api/ResizeObserver.json
index c25d02387d4fa1..4bb05048cf93a7 100644
--- a/api/ResizeObserver.json
+++ b/api/ResizeObserver.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "ResizeObserver": {
         "__compat": {
-          "description": "<code>ResizeObserver()</code> constructor",
+          "description": "`ResizeObserver()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ResizeObserver/ResizeObserver",
           "spec_url": "https://drafts.csswg.org/resize-observer/#dom-resizeobserver-resizeobserver",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,7 +141,7 @@
         },
         "options_box_parameter": {
           "__compat": {
-            "description": "<code>options.box</code> parameter",
+            "description": "`options.box` parameter",
             "support": {
               "chrome": {
                 "version_added": "84"
@@ -146,7 +150,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "69",
-                "notes": "Before version 93, the <code>device-pixel-content-box</code> value is not supported."
+                "notes": "Before version 93, the `device-pixel-content-box` value is not supported."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -160,7 +164,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -195,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ResizeObserverEntry.json b/api/ResizeObserverEntry.json
index 4bdf5eb2a2fc23..f5ebb29a47824e 100644
--- a/api/ResizeObserverEntry.json
+++ b/api/ResizeObserverEntry.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,7 +145,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -210,7 +215,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ResizeObserverSize.json b/api/ResizeObserverSize.json
index e3e035ba21b232..3963c844bcb292 100644
--- a/api/ResizeObserverSize.json
+++ b/api/ResizeObserverSize.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,7 +94,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Response.json b/api/Response.json
index 0f6cfd4d4a3c8a..14f60e87e8b82a 100644
--- a/api/Response.json
+++ b/api/Response.json
@@ -44,7 +44,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -54,7 +55,7 @@
       },
       "Response": {
         "__compat": {
-          "description": "<code>Response()</code> constructor",
+          "description": "`Response()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Response/Response",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-response①",
           "tags": [
@@ -89,7 +90,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,6 +102,9 @@
         "accept_readablestream": {
           "__compat": {
             "description": "body parameter accepts ReadableByteStream",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -112,7 +117,7 @@
                 "version_added": "≤79"
               },
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "39"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -125,13 +130,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
-              },
-              "safari_ios": {
-                "version_added": "10.3"
+                "version_added": "10.1"
               },
+              "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,7 +146,10 @@
         },
         "body_parameter_optional": {
           "__compat": {
-            "description": "<code>body</code> parameter is optional",
+            "description": "`body` parameter is optional",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "40"
@@ -172,7 +179,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -218,7 +226,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -263,7 +272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +286,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Response/body",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-body-body①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -305,7 +318,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,7 +329,10 @@
         },
         "readable_byte_stream": {
           "__compat": {
-            "description": "<code>body</code> is a readable byte stream",
+            "description": "`body` is a readable byte stream",
+            "tags": [
+              "web-features:fetch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -343,7 +360,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -389,7 +407,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -402,9 +421,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Response/bytes",
           "spec_url": "https://fetch.spec.whatwg.org/#dom-body-bytes",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "132"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -426,7 +448,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -471,7 +494,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -482,9 +506,12 @@
       },
       "error_static": {
         "__compat": {
-          "description": "<code>error()</code> static method",
+          "description": "`error()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Response/error_static",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-response-error①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "43"
@@ -514,7 +541,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -527,6 +555,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Response/formData",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-body-formdata①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -556,12 +587,13 @@
               {
                 "version_added": "10.1",
                 "partial_implementation": true,
-                "notes": "The method exists but always rejects with <code>NotSupportedError</code>. See <a href='https://webkit.org/b/215671'>bug 215671</a>."
+                "notes": "The method exists but always rejects with `NotSupportedError`. See [bug 215671](https://webkit.org/b/215671)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -606,7 +638,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -651,7 +684,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -694,7 +728,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -739,7 +774,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -750,9 +786,12 @@
       },
       "redirect_static": {
         "__compat": {
-          "description": "<code>redirect()</code> static method",
+          "description": "`redirect()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Response/redirect_static",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-response-redirect①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "44"
@@ -782,7 +821,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -795,6 +835,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Response/redirected",
           "spec_url": "https://fetch.spec.whatwg.org/#ref-for-dom-response-redirected①",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -828,7 +871,8 @@
             },
             "webview_android": {
               "version_added": "60"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -873,7 +917,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -918,7 +963,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -963,7 +1009,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1008,7 +1055,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1053,7 +1101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/RestrictionTarget.json b/api/RestrictionTarget.json
new file mode 100644
index 00000000000000..21b1017bb8bd71
--- /dev/null
+++ b/api/RestrictionTarget.json
@@ -0,0 +1,77 @@
+{
+  "api": {
+    "RestrictionTarget": {
+      "__compat": {
+        "spec_url": "https://screen-share.github.io/element-capture/#dom-restrictiontarget",
+        "support": {
+          "chrome": {
+            "version_added": "132"
+          },
+          "chrome_android": {
+            "version_added": false
+          },
+          "edge": "mirror",
+          "firefox": {
+            "version_added": false
+          },
+          "firefox_android": "mirror",
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
+        },
+        "status": {
+          "experimental": true,
+          "standard_track": true,
+          "deprecated": false
+        }
+      },
+      "fromElement_static": {
+        "__compat": {
+          "description": "`fromElement()` static method",
+          "spec_url": "https://screen-share.github.io/element-capture/#dom-restrictiontarget-fromelement",
+          "support": {
+            "chrome": {
+              "version_added": "132"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/api/SVGAElement.json b/api/SVGAElement.json
index c0ad20276f4998..4147fc7011bd24 100644
--- a/api/SVGAElement.json
+++ b/api/SVGAElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAElement",
         "spec_url": "https://svgwg.org/svg2-draft/linking.html#InterfaceSVGAElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "download": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/linking.html#__svg__SVGAElement__download",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,7 +86,11 @@
       },
       "href": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAElement/href",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -110,7 +122,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -122,6 +135,9 @@
       "hreflang": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/linking.html#__svg__SVGAElement__hreflang",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -143,7 +159,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -164,7 +181,7 @@
             "firefox": {
               "version_added": "61",
               "partial_implementation": true,
-              "notes": "This property is exposed but has no effect if the <code>browser.send_pings</code> preference is not set to <code>true</code>. See <a href='https://bugzil.la/951104'>bug 951104</a>."
+              "notes": "This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See [bug 951104](https://bugzil.la/951104)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -178,7 +195,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,6 +208,9 @@
       "referrerPolicy": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/linking.html#__svg__SVGAElement__referrerPolicy",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -211,7 +232,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,10 +245,13 @@
       "rel": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/linking.html#__svg__SVGAElement__rel",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/873988"
+              "impl_url": "https://crbug.com/40589293"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -245,7 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -257,10 +283,13 @@
       "relList": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/linking.html#__svg__SVGAElement__relList",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/873988"
+              "impl_url": "https://crbug.com/40589293"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -279,7 +308,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -292,6 +322,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAElement/target",
           "spec_url": "https://svgwg.org/svg2-draft/linking.html#__svg__SVGAElement__target",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -323,7 +356,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -357,7 +391,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -369,6 +404,9 @@
       "type": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/linking.html#__svg__SVGAElement__type",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -390,7 +428,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAngle.json b/api/SVGAngle.json
index aecc8e236e7dce..ea527e319ee12a 100644
--- a/api/SVGAngle.json
+++ b/api/SVGAngle.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAngle",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAngle",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "convertToSpecifiedUnits": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAngle__convertToSpecifiedUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "newValueSpecifiedUnits": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAngle__newValueSpecifiedUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "unitType": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAngle__unitType",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "value": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAngle__value",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -218,6 +238,9 @@
       "valueAsString": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAngle__valueAsString",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -249,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,6 +285,9 @@
       "valueInSpecifiedUnits": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAngle__valueInSpecifiedUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -292,7 +319,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimateColorElement.json b/api/SVGAnimateColorElement.json
index fed128a336a524..4bc31f5258443b 100644
--- a/api/SVGAnimateColorElement.json
+++ b/api/SVGAnimateColorElement.json
@@ -38,7 +38,8 @@
           "webview_android": {
             "version_added": "1",
             "version_removed": "37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGAnimateElement.json b/api/SVGAnimateElement.json
index e80bb7fd228981..ee5894e7d68e2e 100644
--- a/api/SVGAnimateElement.json
+++ b/api/SVGAnimateElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimateElement",
         "spec_url": "https://svgwg.org/specs/animations/#InterfaceSVGAnimateElement",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "2"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGAnimateMotionElement.json b/api/SVGAnimateMotionElement.json
index 61502b42f6ab00..ee36e78f3b4e59 100644
--- a/api/SVGAnimateMotionElement.json
+++ b/api/SVGAnimateMotionElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimateMotionElement",
         "spec_url": "https://svgwg.org/specs/animations/#InterfaceSVGAnimateMotionElement",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "19"
@@ -29,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGAnimateTransformElement.json b/api/SVGAnimateTransformElement.json
index 8bd92ba5ce243d..49f1da7f148a01 100644
--- a/api/SVGAnimateTransformElement.json
+++ b/api/SVGAnimateTransformElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimateTransformElement",
         "spec_url": "https://svgwg.org/specs/animations/#InterfaceSVGAnimateTransformElement",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "2"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGAnimatedAngle.json b/api/SVGAnimatedAngle.json
index 383149b049156d..020906d146f968 100644
--- a/api/SVGAnimatedAngle.json
+++ b/api/SVGAnimatedAngle.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedAngle",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedAngle",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,7 +49,11 @@
       },
       "animVal": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedAngle/animVal",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedAngle__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,7 +97,11 @@
       },
       "baseVal": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedAngle/baseVal",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedAngle__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedBoolean.json b/api/SVGAnimatedBoolean.json
index 242568338b40d4..8c0e77c4a26f19 100644
--- a/api/SVGAnimatedBoolean.json
+++ b/api/SVGAnimatedBoolean.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedBoolean",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedBoolean",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "6"
@@ -33,7 +36,8 @@
             "version_added": "4"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,6 +48,9 @@
       "animVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedBoolean__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
       "baseVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedBoolean__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedEnumeration.json b/api/SVGAnimatedEnumeration.json
index e755fddf49f224..eadfaae3cd2378 100644
--- a/api/SVGAnimatedEnumeration.json
+++ b/api/SVGAnimatedEnumeration.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedEnumeration",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedEnumeration",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedEnumeration/animVal",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedEnumeration__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedEnumeration/baseVal",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedEnumeration__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -122,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedInteger.json b/api/SVGAnimatedInteger.json
index 6c4d58eabdd80d..98e2afb9f6ffb9 100644
--- a/api/SVGAnimatedInteger.json
+++ b/api/SVGAnimatedInteger.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedInteger",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedInteger",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "6"
@@ -33,7 +36,8 @@
             "version_added": "4"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,6 +48,9 @@
       "animVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedInteger__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
       "baseVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedInteger__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedLength.json b/api/SVGAnimatedLength.json
index b197b2018afa73..bdf48d42a25297 100644
--- a/api/SVGAnimatedLength.json
+++ b/api/SVGAnimatedLength.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedLength",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedLength",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedLength/animVal",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedLength__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedLength/baseVal",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedLength__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -122,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedLengthList.json b/api/SVGAnimatedLengthList.json
index 0f551abe494767..db79a159f0177b 100644
--- a/api/SVGAnimatedLengthList.json
+++ b/api/SVGAnimatedLengthList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedLengthList",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedLengthList",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "animVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedLengthList__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "baseVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedLengthList__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedNumber.json b/api/SVGAnimatedNumber.json
index 0866596417332b..aee2903bebd61e 100644
--- a/api/SVGAnimatedNumber.json
+++ b/api/SVGAnimatedNumber.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedNumber",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedNumber",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "animVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedNumber__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "baseVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedNumber__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedNumberList.json b/api/SVGAnimatedNumberList.json
index 05bd4dd0fea540..2348f72d9376a8 100644
--- a/api/SVGAnimatedNumberList.json
+++ b/api/SVGAnimatedNumberList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedNumberList",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedNumberList",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "6"
@@ -33,7 +36,8 @@
             "version_added": "4"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,6 +48,9 @@
       "animVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedNumberList__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
       "baseVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedNumberList__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedPreserveAspectRatio.json b/api/SVGAnimatedPreserveAspectRatio.json
index 572cc5a4d1d774..910978a058997a 100644
--- a/api/SVGAnimatedPreserveAspectRatio.json
+++ b/api/SVGAnimatedPreserveAspectRatio.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedPreserveAspectRatio",
         "spec_url": "https://svgwg.org/svg2-draft/coords.html#InterfaceSVGAnimatedPreserveAspectRatio",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -33,7 +36,8 @@
             "version_added": "4"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,6 +48,9 @@
       "animVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGAnimatedPreserveAspectRatio__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
       "baseVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGAnimatedPreserveAspectRatio__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedRect.json b/api/SVGAnimatedRect.json
index 0fbd4e7a1688b2..1073568d272a87 100644
--- a/api/SVGAnimatedRect.json
+++ b/api/SVGAnimatedRect.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedRect",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedRect",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "animVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedRect__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "baseVal": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedRect__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedString.json b/api/SVGAnimatedString.json
index e4c141779db7bd..5d2bd80eea74e9 100644
--- a/api/SVGAnimatedString.json
+++ b/api/SVGAnimatedString.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedString",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGAnimatedString",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -27,7 +30,7 @@
             "version_added": "≤12.1"
           },
           "safari": {
-            "version_added": "≤4"
+            "version_added": "3"
           },
           "safari_ios": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedString/animVal",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedString__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,7 @@
               "version_added": "≤12.1"
             },
             "safari": {
-              "version_added": "≤4"
+              "version_added": "3"
             },
             "safari_ios": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedString/baseVal",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGAnimatedString__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -114,7 +125,7 @@
               "version_added": "≤12.1"
             },
             "safari": {
-              "version_added": "≤4"
+              "version_added": "3"
             },
             "safari_ios": {
               "version_added": "1"
@@ -122,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimatedTransformList.json b/api/SVGAnimatedTransformList.json
index 0009f92629c74b..944deaa66d8476 100644
--- a/api/SVGAnimatedTransformList.json
+++ b/api/SVGAnimatedTransformList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedTransformList",
         "spec_url": "https://svgwg.org/svg2-draft/coords.html#InterfaceSVGAnimatedTransformList",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -27,7 +30,7 @@
             "version_added": "≤12.1"
           },
           "safari": {
-            "version_added": "≤4"
+            "version_added": "3"
           },
           "safari_ios": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,7 +49,11 @@
       },
       "animVal": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedTransformList/animVal",
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGAnimatedTransformList__animVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -69,7 +77,7 @@
               "version_added": "≤12.1"
             },
             "safari": {
-              "version_added": "≤4"
+              "version_added": "3"
             },
             "safari_ios": {
               "version_added": "1"
@@ -77,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,7 +97,11 @@
       },
       "baseVal": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimatedTransformList/baseVal",
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGAnimatedTransformList__baseVal",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -112,7 +125,7 @@
               "version_added": "≤12.1"
             },
             "safari": {
-              "version_added": "≤4"
+              "version_added": "3"
             },
             "safari_ios": {
               "version_added": "1"
@@ -120,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGAnimationElement.json b/api/SVGAnimationElement.json
index ffdad6d8949f40..1b035849455475 100644
--- a/api/SVGAnimationElement.json
+++ b/api/SVGAnimationElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimationElement",
         "spec_url": "https://svgwg.org/specs/animations/#InterfaceSVGAnimationElement",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": "2"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
       },
       "beginElement": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -70,7 +77,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       },
       "beginElementAt": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -108,7 +119,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,9 +131,12 @@
       },
       "beginEvent_event": {
         "__compat": {
-          "description": "<code>beginEvent</code> event",
+          "description": "`beginEvent` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimationElement/beginEvent_event",
           "spec_url": "https://svgwg.org/svg2-draft/interact.html#BeginEvent",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": [
               {
@@ -131,7 +146,7 @@
                 "version_added": "31",
                 "version_removed": "35",
                 "partial_implementation": true,
-                "notes": "The <code>onbegin</code> event handler property is not supported."
+                "notes": "The `onbegin` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -144,7 +159,7 @@
                 "version_added": "6",
                 "version_removed": "93",
                 "partial_implementation": true,
-                "notes": "The <code>onbegin</code> event handler property is not supported."
+                "notes": "The `onbegin` event handler property is not supported."
               }
             ],
             "firefox_android": "mirror",
@@ -157,11 +172,12 @@
             "safari": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>onbegin</code> event handler property is not supported."
+              "notes": "The `onbegin` event handler property is not supported."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -172,6 +188,9 @@
       },
       "endElement": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -199,7 +218,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -210,6 +230,9 @@
       },
       "endElementAt": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -237,7 +260,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -248,9 +272,12 @@
       },
       "endEvent_event": {
         "__compat": {
-          "description": "<code>endEvent</code> event",
+          "description": "`endEvent` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimationElement/endEvent_event",
           "spec_url": "https://svgwg.org/svg2-draft/interact.html#EndEvent",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": [
               {
@@ -260,7 +287,7 @@
                 "version_added": "31",
                 "version_removed": "35",
                 "partial_implementation": true,
-                "notes": "The <code>onend</code> event handler property is not supported."
+                "notes": "The `onend` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -273,7 +300,7 @@
                 "version_added": "6",
                 "version_removed": "93",
                 "partial_implementation": true,
-                "notes": "The <code>onend</code> event handler property is not supported."
+                "notes": "The `onend` event handler property is not supported."
               }
             ],
             "firefox_android": "mirror",
@@ -286,11 +313,12 @@
             "safari": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>onend</code> event handler property is not supported."
+              "notes": "The `onend` event handler property is not supported."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -301,6 +329,9 @@
       },
       "getCurrentTime": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -328,7 +359,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,6 +371,9 @@
       },
       "getSimpleDuration": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -366,7 +401,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -377,6 +413,9 @@
       },
       "getStartTime": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -404,7 +443,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -415,9 +455,12 @@
       },
       "repeatEvent_event": {
         "__compat": {
-          "description": "<code>repeatEvent</code> event",
+          "description": "`repeatEvent` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimationElement/repeatEvent_event",
           "spec_url": "https://svgwg.org/svg2-draft/interact.html#RepeatEvent",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": [
               {
@@ -427,7 +470,7 @@
                 "version_added": "31",
                 "version_removed": "35",
                 "partial_implementation": true,
-                "notes": "The <code>onrepeat</code> event handler property is not supported."
+                "notes": "The `onrepeat` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -440,7 +483,7 @@
                 "version_added": "6",
                 "version_removed": "93",
                 "partial_implementation": true,
-                "notes": "The <code>onrepeat</code> event handler property is not supported."
+                "notes": "The `onrepeat` event handler property is not supported."
               }
             ],
             "firefox_android": "mirror",
@@ -453,11 +496,12 @@
             "safari": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>onrepeat</code> event handler property is not supported."
+              "notes": "The `onrepeat` event handler property is not supported."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -469,6 +513,9 @@
       "requiredExtensions": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__requiredExtensions",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -498,7 +545,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -510,6 +558,9 @@
       "systemLanguage": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -539,7 +590,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -552,6 +604,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGAnimationElement/targetElement",
           "spec_url": "https://svgwg.org/specs/animations/#__svg__SVGAnimationElement__targetElement",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -579,7 +634,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGCircleElement.json b/api/SVGCircleElement.json
index 540c6eb7f3ae58..d392d5e4862757 100644
--- a/api/SVGCircleElement.json
+++ b/api/SVGCircleElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGCircleElement",
         "spec_url": "https://svgwg.org/svg2-draft/shapes.html#InterfaceSVGCircleElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGCircleElement/cx",
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGCircleElement__cx",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGCircleElement/cy",
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGCircleElement__cy",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -122,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,6 +147,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGCircleElement/r",
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGCircleElement__r",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -166,7 +181,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGClipPathElement.json b/api/SVGClipPathElement.json
index 0da609fba98a96..745ba2a5f35212 100644
--- a/api/SVGClipPathElement.json
+++ b/api/SVGClipPathElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGClipPathElement",
         "spec_url": "https://drafts.fxtf.org/css-masking/#InterfaceSVGClipPathElement",
+        "tags": [
+          "web-features:clip-path"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGClipPathElement/clipPathUnits",
           "spec_url": "https://drafts.fxtf.org/css-masking/#dom-svgclippathelement-clippathunits",
+          "tags": [
+            "web-features:clip-path"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGClipPathElement/transform",
           "spec_url": "https://drafts.fxtf.org/css-masking/#dom-svgclippathelement-transform",
+          "tags": [
+            "web-features:clip-path"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -122,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGComponentTransferFunctionElement.json b/api/SVGComponentTransferFunctionElement.json
index 3a98db3d94db8a..914acddcaeeb25 100644
--- a/api/SVGComponentTransferFunctionElement.json
+++ b/api/SVGComponentTransferFunctionElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGComponentTransferFunctionElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGComponentTransferFunctionElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "amplitude": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgcomponenttransferfunctionelement-amplitude",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "exponent": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgcomponenttransferfunctionelement-exponent",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "intercept": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgcomponenttransferfunctionelement-intercept",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "offset": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgcomponenttransferfunctionelement-offset",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "slope": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgcomponenttransferfunctionelement-slope",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "tableValues": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgcomponenttransferfunctionelement-tablevalues",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "type": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgcomponenttransferfunctionelement-type",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGCursorElement.json b/api/SVGCursorElement.json
index e5a6450495ddd8..604039842462f9 100644
--- a/api/SVGCursorElement.json
+++ b/api/SVGCursorElement.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "57"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGDefsElement.json b/api/SVGDefsElement.json
index ae8ca07be6144e..e247d854898d34 100644
--- a/api/SVGDefsElement.json
+++ b/api/SVGDefsElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGDefsElement",
         "spec_url": "https://svgwg.org/svg2-draft/struct.html#InterfaceSVGDefsElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGDescElement.json b/api/SVGDescElement.json
index 3d79079fba4861..721b59e0f689e6 100644
--- a/api/SVGDescElement.json
+++ b/api/SVGDescElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGDescElement",
         "spec_url": "https://svgwg.org/svg2-draft/struct.html#InterfaceSVGDescElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGElement.json b/api/SVGElement.json
index 918e379d05ffba..a23079051f3207 100644
--- a/api/SVGElement.json
+++ b/api/SVGElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGElement",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGElement/attributeStyleMap",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-elementcssinlinestyle-attributestylemap",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -97,7 +105,7 @@
               {
                 "version_added": "78",
                 "partial_implementation": true,
-                "notes": "Only supported on <code>SVGGraphicsElement</code>."
+                "notes": "Only supported on `SVGGraphicsElement`."
               }
             ],
             "firefox_android": "mirror",
@@ -112,7 +120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -124,6 +133,9 @@
       "blur": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-blur-dev",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -151,7 +163,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -186,7 +199,7 @@
               "version_added": "≤12.1"
             },
             "safari": {
-              "version_added": "≤4"
+              "version_added": "3"
             },
             "safari_ios": {
               "version_added": "1"
@@ -194,7 +207,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,6 +221,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGElement/dataset",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#dom-dataset-dev",
+          "tags": [
+            "web-features:dataset"
+          ],
           "support": {
             "chrome": {
               "version_added": "55"
@@ -234,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -245,9 +263,12 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGElement/error_event",
           "spec_url": "https://svgwg.org/svg2-draft/interact.html#ErrorEvent",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -277,7 +298,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -289,6 +311,9 @@
       "focus": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-focus-dev",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -316,7 +341,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -326,7 +352,10 @@
         },
         "options_preventScroll_parameter": {
           "__compat": {
-            "description": "<code>options.preventScroll</code> parameter",
+            "description": "`options.preventScroll` parameter",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "78"
@@ -352,7 +381,8 @@
                 "version_added": "15.5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -364,9 +394,12 @@
       },
       "load_event": {
         "__compat": {
-          "description": "<code>load</code> event",
+          "description": "`load` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGElement/load_event",
           "spec_url": "https://svgwg.org/svg2-draft/interact.html#LoadEvent",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -378,7 +411,7 @@
             "firefox": {
               "alternative_name": "SVGLoad",
               "version_added": "4",
-              "notes": "See <a href='https://bugzil.la/620002'>bug 620002</a> for implementation status of the standard <code>load</code> event."
+              "notes": "See [bug 620002](https://bugzil.la/620002) for implementation status of the standard `load` event."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -400,7 +433,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -412,6 +446,9 @@
       "nonce": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/urls-and-fetching.html#dom-noncedelement-nonce",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -433,7 +470,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -445,6 +483,9 @@
       "ownerSVGElement": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGElement__ownerSVGElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -476,7 +517,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -489,6 +531,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGElement/style",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-elementcssinlinestyle-style",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -518,7 +563,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -530,6 +576,9 @@
       "tabIndex": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-tabindex",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "36"
@@ -553,7 +602,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -565,6 +615,9 @@
       "viewportElement": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGElement__viewportElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -596,7 +649,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGEllipseElement.json b/api/SVGEllipseElement.json
index e14e57b926fc69..1841f80df37297 100644
--- a/api/SVGEllipseElement.json
+++ b/api/SVGEllipseElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGEllipseElement",
         "spec_url": "https://svgwg.org/svg2-draft/shapes.html#InterfaceSVGEllipseElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "cx": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGEllipseElement__cx",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "cy": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGEllipseElement__cy",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "rx": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGEllipseElement__rx",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "ry": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGEllipseElement__ry",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEBlendElement.json b/api/SVGFEBlendElement.json
index 55ae820545d334..a3bfb7c46778e4 100644
--- a/api/SVGFEBlendElement.json
+++ b/api/SVGFEBlendElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEBlendElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEBlendElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeblendelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "in2": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeblendelement-in2",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "mode": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeblendelement-mode",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEColorMatrixElement.json b/api/SVGFEColorMatrixElement.json
index 7ca19403cf5298..7ee95c69fb7c7c 100644
--- a/api/SVGFEColorMatrixElement.json
+++ b/api/SVGFEColorMatrixElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEColorMatrixElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEColorMatrixElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecolormatrixelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "type": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecolormatrixelement-type",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "values": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecolormatrixelement-values",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEComponentTransferElement.json b/api/SVGFEComponentTransferElement.json
index 25127873983e93..c26d838223c201 100644
--- a/api/SVGFEComponentTransferElement.json
+++ b/api/SVGFEComponentTransferElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEComponentTransferElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEComponentTransferElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -75,7 +82,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecomponenttransferelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -114,7 +125,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,6 +138,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -159,7 +174,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +187,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -204,7 +223,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -216,6 +236,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -249,7 +272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,6 +285,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -294,7 +321,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFECompositeElement.json b/api/SVGFECompositeElement.json
index 9d325cff2f3922..afae6b72cf61ab 100644
--- a/api/SVGFECompositeElement.json
+++ b/api/SVGFECompositeElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFECompositeElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFECompositeElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecompositeelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "in2": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecompositeelement-in2",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "k1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecompositeelement-k1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "k2": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecompositeelement-k2",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "k3": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecompositeelement-k3",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "k4": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecompositeelement-k4",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "operator": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfecompositeelement-operator",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -354,6 +390,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -381,7 +420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -393,6 +433,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -420,7 +463,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,6 +476,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -459,7 +506,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -471,6 +519,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -498,7 +549,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEConvolveMatrixElement.json b/api/SVGFEConvolveMatrixElement.json
index e5144f80b869d0..49b8d18f22d909 100644
--- a/api/SVGFEConvolveMatrixElement.json
+++ b/api/SVGFEConvolveMatrixElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEConvolveMatrixElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEConvolveMatrixElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "6"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "bias": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-bias",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "divisor": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-divisor",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "edgeMode": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-edgemode",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "kernelMatrix": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-kernelmatrix",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "kernelUnitLengthX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-kernelunitlengthx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "kernelUnitLengthY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-kernelunitlengthy",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -354,6 +390,9 @@
       "orderX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-orderx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -381,7 +420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -393,6 +433,9 @@
       "orderY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-ordery",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -420,7 +463,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,6 +476,9 @@
       "preserveAlpha": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-preservealpha",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -459,7 +506,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -471,6 +519,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -498,7 +549,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -510,6 +562,9 @@
       "targetX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-targetx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -537,7 +592,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -549,6 +605,9 @@
       "targetY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeconvolvematrixelement-targety",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -576,7 +635,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -588,6 +648,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -615,7 +678,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -627,6 +691,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -654,7 +721,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -666,6 +734,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -693,7 +764,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEDiffuseLightingElement.json b/api/SVGFEDiffuseLightingElement.json
index 2a5968531780f3..df10d9dfaba24f 100644
--- a/api/SVGFEDiffuseLightingElement.json
+++ b/api/SVGFEDiffuseLightingElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEDiffuseLightingElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEDiffuseLightingElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "diffuseConstant": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfediffuselightingelement-diffuseconstant",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfediffuselightingelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "kernelUnitLengthX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfediffuselightingelement-kernelunitlengthx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "kernelUnitLengthY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfediffuselightingelement-kernelunitlengthy",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "surfaceScale": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfediffuselightingelement-surfacescale",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -354,6 +390,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -381,7 +420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -393,6 +433,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -420,7 +463,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEDisplacementMapElement.json b/api/SVGFEDisplacementMapElement.json
index 1b9b8fea977e6f..1f0895a3b696fa 100644
--- a/api/SVGFEDisplacementMapElement.json
+++ b/api/SVGFEDisplacementMapElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEDisplacementMapElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEDisplacementMapElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedisplacementmapelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "in2": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedisplacementmapelement-in2",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "scale": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedisplacementmapelement-scale",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "xChannelSelector": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedisplacementmapelement-xchannelselector",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -354,6 +390,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -381,7 +420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -393,6 +433,9 @@
       "yChannelSelector": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedisplacementmapelement-ychannelselector",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -420,7 +463,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEDistantLightElement.json b/api/SVGFEDistantLightElement.json
index 85cd6b095371db..952fcd1c81deab 100644
--- a/api/SVGFEDistantLightElement.json
+++ b/api/SVGFEDistantLightElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEDistantLightElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEDistantLightElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "azimuth": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedistantlightelement-azimuth",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "elevation": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedistantlightelement-elevation",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEDropShadowElement.json b/api/SVGFEDropShadowElement.json
index 7f59e1cf6b194b..473df54ffe2010 100644
--- a/api/SVGFEDropShadowElement.json
+++ b/api/SVGFEDropShadowElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEDropShadowElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEDropShadowElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "13"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,6 +40,9 @@
       "dx": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedropshadowelement-dx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -57,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,6 +77,9 @@
       "dy": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedropshadowelement-dy",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -90,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,6 +114,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -123,7 +138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,6 +151,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedropshadowelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -156,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,6 +188,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -189,7 +212,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,6 +225,9 @@
       "setStdDeviation": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedropshadowelement-setstddeviation",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -222,7 +249,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -234,6 +262,9 @@
       "stdDeviationX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedropshadowelement-stddeviationx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -255,7 +286,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -267,6 +299,9 @@
       "stdDeviationY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfedropshadowelement-stddeviationy",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -288,7 +323,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -300,6 +336,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -321,7 +360,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -333,6 +373,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -354,7 +397,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -366,6 +410,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -387,7 +434,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEFloodElement.json b/api/SVGFEFloodElement.json
index f9db619d3d1188..595892cb5c6aa5 100644
--- a/api/SVGFEFloodElement.json
+++ b/api/SVGFEFloodElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEFloodElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEFloodElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -75,7 +82,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -120,7 +131,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -165,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,6 +193,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -210,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -222,6 +242,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -255,7 +278,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEFuncAElement.json b/api/SVGFEFuncAElement.json
index bd2d9fdc964a36..8572ef3b91763b 100644
--- a/api/SVGFEFuncAElement.json
+++ b/api/SVGFEFuncAElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEFuncAElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEFuncAElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGFEFuncBElement.json b/api/SVGFEFuncBElement.json
index 971374f1011767..9102dbd5515f4b 100644
--- a/api/SVGFEFuncBElement.json
+++ b/api/SVGFEFuncBElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEFuncBElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEFuncBElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGFEFuncGElement.json b/api/SVGFEFuncGElement.json
index d3273bae4ac527..c6d13ba0816dcc 100644
--- a/api/SVGFEFuncGElement.json
+++ b/api/SVGFEFuncGElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEFuncGElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEFuncGElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGFEFuncRElement.json b/api/SVGFEFuncRElement.json
index 1db3311654d12e..e9cd7226869a5e 100644
--- a/api/SVGFEFuncRElement.json
+++ b/api/SVGFEFuncRElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEFuncRElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEFuncRElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGFEGaussianBlurElement.json b/api/SVGFEGaussianBlurElement.json
index de502a4e7ed8f8..4581d2961e6de6 100644
--- a/api/SVGFEGaussianBlurElement.json
+++ b/api/SVGFEGaussianBlurElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEGaussianBlurElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEGaussianBlurElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "edgeMode": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfegaussianblurelement-edgemode",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -63,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,6 +83,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfegaussianblurelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -192,7 +211,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -204,6 +224,9 @@
       "setStdDeviation": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfegaussianblurelement-setstddeviation",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -231,7 +254,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -243,6 +267,9 @@
       "stdDeviationX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfegaussianblurelement-stddeviationx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -270,7 +297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -282,6 +310,9 @@
       "stdDeviationY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfegaussianblurelement-stddeviationy",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -309,7 +340,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -321,6 +353,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -354,7 +389,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -366,6 +402,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -399,7 +438,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -411,6 +451,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -444,7 +487,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEImageElement.json b/api/SVGFEImageElement.json
index 1e1e17ae7a7904..1083bdc2731704 100644
--- a/api/SVGFEImageElement.json
+++ b/api/SVGFEImageElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEImageElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEImageElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEImageElement",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feimage-crossorigin",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -76,6 +84,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -103,7 +114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -115,6 +127,9 @@
       "href": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -142,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,6 +170,9 @@
       "preserveAspectRatio": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeimageelement-preserveaspectratio",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -181,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -193,6 +213,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -220,7 +243,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -232,6 +256,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -259,7 +286,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -271,6 +299,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -298,7 +329,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -310,6 +342,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -337,7 +372,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEMergeElement.json b/api/SVGFEMergeElement.json
index 37ce7f6229a8f0..317de02f1ada0c 100644
--- a/api/SVGFEMergeElement.json
+++ b/api/SVGFEMergeElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEMergeElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEMergeElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEMergeNodeElement.json b/api/SVGFEMergeNodeElement.json
index a011e4d0be1cd9..daeed719668638 100644
--- a/api/SVGFEMergeNodeElement.json
+++ b/api/SVGFEMergeNodeElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEMergeNodeElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEMergeNodeElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfemergenodeelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEMorphologyElement.json b/api/SVGFEMorphologyElement.json
index 37e7b8aa4778ad..f04e977681d76e 100644
--- a/api/SVGFEMorphologyElement.json
+++ b/api/SVGFEMorphologyElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEMorphologyElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEMorphologyElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfemorphologyelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "operator": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfemorphologyelement-operator",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "radiusX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfemorphologyelement-radiusx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "radiusY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfemorphologyelement-radiusy",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -354,6 +390,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -381,7 +420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEOffsetElement.json b/api/SVGFEOffsetElement.json
index b69c0caa9169fd..a118e69a966aa9 100644
--- a/api/SVGFEOffsetElement.json
+++ b/api/SVGFEOffsetElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEOffsetElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEOffsetElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "dx": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeoffsetelement-dx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "dy": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeoffsetelement-dy",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeoffsetelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFEPointLightElement.json b/api/SVGFEPointLightElement.json
index 2df349d514bcf2..0f9ff82c770a37 100644
--- a/api/SVGFEPointLightElement.json
+++ b/api/SVGFEPointLightElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFEPointLightElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFEPointLightElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfepointlightelement-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfepointlightelement-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "z": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfepointlightelement-z",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFESpecularLightingElement.json b/api/SVGFESpecularLightingElement.json
index 078dcd59283d66..d4eead71dd5c03 100644
--- a/api/SVGFESpecularLightingElement.json
+++ b/api/SVGFESpecularLightingElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFESpecularLightingElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFESpecularLightingElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespecularlightingelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "kernelUnitLengthX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespecularlightingelement-kernelunitlengthx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "45"
@@ -143,7 +158,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,6 +171,9 @@
       "kernelUnitLengthY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespecularlightingelement-kernelunitlengthy",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "45"
@@ -178,7 +197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -190,6 +210,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -217,7 +240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -229,6 +253,9 @@
       "specularConstant": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespecularlightingelement-specularconstant",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -256,7 +283,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -268,6 +296,9 @@
       "specularExponent": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespecularlightingelement-specularexponent",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -295,7 +326,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -307,6 +339,9 @@
       "surfaceScale": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespecularlightingelement-surfacescale",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -334,7 +369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -346,6 +382,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -373,7 +412,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -385,6 +425,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -412,7 +455,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -424,6 +468,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -451,7 +498,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFESpotLightElement.json b/api/SVGFESpotLightElement.json
index 188ea3eda25d4e..da3d08f8f4da01 100644
--- a/api/SVGFESpotLightElement.json
+++ b/api/SVGFESpotLightElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFESpotLightElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFESpotLightElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "limitingConeAngle": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespotlightelement-limitingconeangle",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "pointsAtX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespotlightelement-pointsatx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "pointsAtY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespotlightelement-pointsaty",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "pointsAtZ": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespotlightelement-pointsatz",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "specularExponent": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespotlightelement-specularexponent",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespotlightelement-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespotlightelement-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "z": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfespotlightelement-z",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFETileElement.json b/api/SVGFETileElement.json
index 57d3209420ae35..7fbfb39a9791cc 100644
--- a/api/SVGFETileElement.json
+++ b/api/SVGFETileElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFETileElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFETileElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "in1": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfetileelement-in1",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFETurbulenceElement.json b/api/SVGFETurbulenceElement.json
index 9a39fa2c6373d3..ecf9cd974073f4 100644
--- a/api/SVGFETurbulenceElement.json
+++ b/api/SVGFETurbulenceElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFETurbulenceElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFETurbulenceElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "baseFrequencyX": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeturbulenceelement-basefrequencyx",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "baseFrequencyY": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeturbulenceelement-basefrequencyy",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "numOctaves": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeturbulenceelement-numoctaves",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "result": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-result",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "seed": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeturbulenceelement-seed",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "stitchTiles": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeturbulenceelement-stitchtiles",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -315,6 +347,9 @@
       "type": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfeturbulenceelement-type",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -342,7 +377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -354,6 +390,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -381,7 +420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -393,6 +433,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -420,7 +463,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,6 +476,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -459,7 +506,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFilterElement.json b/api/SVGFilterElement.json
index 68f6a39f0d81dc..59928bca7a8066 100644
--- a/api/SVGFilterElement.json
+++ b/api/SVGFilterElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGFilterElement",
         "spec_url": "https://drafts.fxtf.org/filter-effects/#InterfaceSVGFilterElement",
+        "tags": [
+          "web-features:svg-filters"
+        ],
         "support": {
           "chrome": {
             "version_added": "5"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,6 +46,9 @@
       "filterUnits": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterelement-filterunits",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterelement-height",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,6 +132,9 @@
       "href": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -147,7 +162,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,6 +175,9 @@
       "primitiveUnits": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterelement-primitiveunits",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -186,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,6 +218,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterelement-width",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -225,7 +248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,6 +261,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterelement-x",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -264,7 +291,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -276,6 +304,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterelement-y",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -303,7 +334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGFontElement.json b/api/SVGFontElement.json
index 720be0f2ea31fd..7c0da00232ae55 100644
--- a/api/SVGFontElement.json
+++ b/api/SVGFontElement.json
@@ -36,7 +36,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGFontFaceElement.json b/api/SVGFontFaceElement.json
index 160bc7504d2c18..96a04ec9d8a2da 100644
--- a/api/SVGFontFaceElement.json
+++ b/api/SVGFontFaceElement.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGFontFaceFormatElement.json b/api/SVGFontFaceFormatElement.json
index 154d64ee454f1e..2d0a17af099934 100644
--- a/api/SVGFontFaceFormatElement.json
+++ b/api/SVGFontFaceFormatElement.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGFontFaceNameElement.json b/api/SVGFontFaceNameElement.json
index e79944686e47db..2565e616e0a2e1 100644
--- a/api/SVGFontFaceNameElement.json
+++ b/api/SVGFontFaceNameElement.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGFontFaceSrcElement.json b/api/SVGFontFaceSrcElement.json
index c1c2959f937f27..37a89fe486f52f 100644
--- a/api/SVGFontFaceSrcElement.json
+++ b/api/SVGFontFaceSrcElement.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGFontFaceUriElement.json b/api/SVGFontFaceUriElement.json
index 60c3e9e9b385a8..1af2d7baf12c53 100644
--- a/api/SVGFontFaceUriElement.json
+++ b/api/SVGFontFaceUriElement.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGForeignObjectElement.json b/api/SVGForeignObjectElement.json
index 03cdaf0603bd0a..3bea395e19856c 100644
--- a/api/SVGForeignObjectElement.json
+++ b/api/SVGForeignObjectElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGForeignObjectElement",
         "spec_url": "https://svgwg.org/svg2-draft/embedded.html#InterfaceSVGForeignObjectElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#__svg__SVGForeignObjectElement__height",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -75,7 +82,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#__svg__SVGForeignObjectElement__width",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -116,7 +127,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -128,6 +140,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#__svg__SVGForeignObjectElement__x",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -157,7 +172,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -169,6 +185,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#__svg__SVGForeignObjectElement__y",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -198,7 +217,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGGElement.json b/api/SVGGElement.json
index a5983c9ed571e1..25e12cd9efa3e6 100644
--- a/api/SVGGElement.json
+++ b/api/SVGGElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGElement",
         "spec_url": "https://svgwg.org/svg2-draft/struct.html#InterfaceSVGGElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGGeometryElement.json b/api/SVGGeometryElement.json
index da1be5d4074774..556375cd7dd27d 100644
--- a/api/SVGGeometryElement.json
+++ b/api/SVGGeometryElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGeometryElement",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGGeometryElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": [
             {
@@ -13,7 +16,7 @@
               "version_added": "1",
               "version_removed": "56",
               "partial_implementation": true,
-              "notes": "The <code>SVGGeometryElement</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a> interface."
+              "notes": "The `SVGGeometryElement` interface itself is not present, but some of its members are available on the [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement) interface."
             }
           ],
           "chrome_android": "mirror",
@@ -25,7 +28,7 @@
               "version_added": "12",
               "version_removed": "79",
               "partial_implementation": true,
-              "notes": "The <code>SVGGeometryElement</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a> interface."
+              "notes": "The `SVGGeometryElement` interface itself is not present, but some of its members are available on the [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement) interface."
             }
           ],
           "firefox": [
@@ -36,14 +39,14 @@
               "version_added": "1.5",
               "version_removed": "53",
               "partial_implementation": true,
-              "notes": "The <code>SVGGeometryElement</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a> interface."
+              "notes": "The `SVGGeometryElement` interface itself is not present, but some of its members are available on the [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement) interface."
             }
           ],
           "firefox_android": "mirror",
           "ie": {
             "version_added": "9",
             "partial_implementation": true,
-            "notes": "The <code>SVGGeometryElement</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a> interface."
+            "notes": "The `SVGGeometryElement` interface itself is not present, but some of its members are available on the [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement) interface."
           },
           "oculus": "mirror",
           "opera": [
@@ -54,7 +57,7 @@
               "version_added": "≤12.1",
               "version_removed": "43",
               "partial_implementation": true,
-              "notes": "The <code>SVGGeometryElement</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a> interface."
+              "notes": "The `SVGGeometryElement` interface itself is not present, but some of its members are available on the [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement) interface."
             }
           ],
           "opera_android": [
@@ -65,7 +68,7 @@
               "version_added": "≤12.1",
               "version_removed": "43",
               "partial_implementation": true,
-              "notes": "The <code>SVGGeometryElement</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a> interface."
+              "notes": "The `SVGGeometryElement` interface itself is not present, but some of its members are available on the [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement) interface."
             }
           ],
           "safari": [
@@ -76,7 +79,7 @@
               "version_added": "3",
               "version_removed": "12",
               "partial_implementation": true,
-              "notes": "The <code>SVGGeometryElement</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a> interface."
+              "notes": "The `SVGGeometryElement` interface itself is not present, but some of its members are available on the [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement) interface."
             }
           ],
           "safari_ios": [
@@ -87,7 +90,7 @@
               "version_added": "1",
               "version_removed": "12",
               "partial_implementation": true,
-              "notes": "The <code>SVGGeometryElement</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a> interface."
+              "notes": "The `SVGGeometryElement` interface itself is not present, but some of its members are available on the [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement) interface."
             }
           ],
           "samsunginternet_android": "mirror",
@@ -99,9 +102,10 @@
               "version_added": "≤37",
               "version_removed": "56",
               "partial_implementation": true,
-              "notes": "The <code>SVGGeometryElement</code> interface itself is not present, but some of its members are available on the <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a> interface."
+              "notes": "The `SVGGeometryElement` interface itself is not present, but some of its members are available on the [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement) interface."
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -113,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/getPointAtLength",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGGeometryElement__getPointAtLength",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": [
               {
@@ -122,7 +129,7 @@
                 "version_added": "1",
                 "version_removed": "56",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -134,7 +141,7 @@
                 "version_added": "12",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "firefox": [
@@ -145,14 +152,14 @@
                 "version_added": "1.5",
                 "version_removed": "61",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
               "partial_implementation": true,
-              "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+              "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
             },
             "oculus": "mirror",
             "opera": [
@@ -163,7 +170,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "43",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "opera_android": [
@@ -174,7 +181,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "43",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "safari": [
@@ -185,7 +192,7 @@
                 "version_added": "3",
                 "version_removed": "12",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "safari_ios": [
@@ -196,7 +203,7 @@
                 "version_added": "1",
                 "version_removed": "12",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "samsunginternet_android": "mirror",
@@ -208,9 +215,10 @@
                 "version_added": "≤37",
                 "version_removed": "56",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,6 +231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/getTotalLength",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGGeometryElement__getTotalLength",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": [
               {
@@ -232,7 +243,7 @@
                 "version_added": "1",
                 "version_removed": "56",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -244,7 +255,7 @@
                 "version_added": "12",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "firefox": [
@@ -255,14 +266,14 @@
                 "version_added": "1.5",
                 "version_removed": "61",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
               "partial_implementation": true,
-              "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+              "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
             },
             "oculus": "mirror",
             "opera": [
@@ -273,7 +284,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "43",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "opera_android": [
@@ -284,7 +295,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "43",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "safari": [
@@ -295,7 +306,7 @@
                 "version_added": "3",
                 "version_removed": "12",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "safari_ios": [
@@ -306,7 +317,7 @@
                 "version_added": "1",
                 "version_removed": "12",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "samsunginternet_android": "mirror",
@@ -318,9 +329,10 @@
                 "version_added": "≤37",
                 "version_removed": "56",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -333,10 +345,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/isPointInFill",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGGeometryElement__isPointInFill",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "33",
-              "notes": "The element this method is called for must be in the DOM; otherwise, this method will always return <code>false</code>."
+              "notes": "The element this method is called for must be in the DOM; otherwise, this method will always return `false`."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -357,7 +372,8 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -367,7 +383,10 @@
         },
         "point_parameter_DOMPoint": {
           "__compat": {
-            "description": "Accepts a <code>DOMPoint</code> as <code>point</code> parameter",
+            "description": "Accepts a `DOMPoint` as `point` parameter",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -389,7 +408,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -403,10 +423,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/isPointInStroke",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGGeometryElement__isPointInStroke",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "33",
-              "notes": "The element this method is called for must be in the DOM; otherwise, this method will always return <code>false</code>."
+              "notes": "The element this method is called for must be in the DOM; otherwise, this method will always return `false`."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -427,7 +450,8 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -437,7 +461,10 @@
         },
         "point_parameter_DOMPoint": {
           "__compat": {
-            "description": "Accepts a <code>DOMPoint</code> as <code>point</code> parameter",
+            "description": "Accepts a `DOMPoint` as `point` parameter",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -459,7 +486,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -473,6 +501,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/pathLength",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGGeometryElement__pathLength",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": [
               {
@@ -482,7 +513,7 @@
                 "version_added": "1",
                 "version_removed": "57",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "chrome_android": "mirror",
@@ -495,7 +526,7 @@
                 "version_added": "1.5",
                 "version_removed": "61",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "firefox_android": "mirror",
@@ -511,7 +542,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "44",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "opera_android": [
@@ -522,7 +553,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "43",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "safari": [
@@ -533,7 +564,7 @@
                 "version_added": "3",
                 "version_removed": "12",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "safari_ios": [
@@ -544,7 +575,7 @@
                 "version_added": "1",
                 "version_removed": "12",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
             ],
             "samsunginternet_android": "mirror",
@@ -556,9 +587,10 @@
                 "version_added": "≤37",
                 "version_removed": "57",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/SVGPathElement'><code>SVGPathElement</code></a>, not all <code>SVGGeometryElement</code> objects."
+                "notes": "Only supported for [`SVGPathElement`](https://developer.mozilla.org/docs/Web/API/SVGPathElement), not all `SVGGeometryElement` objects."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGGlyphElement.json b/api/SVGGlyphElement.json
index 8df0a3cdf2c0ef..57178a2da4a91e 100644
--- a/api/SVGGlyphElement.json
+++ b/api/SVGGlyphElement.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGGlyphRefElement.json b/api/SVGGlyphRefElement.json
index 97d93ca4994fb1..4175025b0d8bed 100644
--- a/api/SVGGlyphRefElement.json
+++ b/api/SVGGlyphRefElement.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,7 +67,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "40"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +105,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "40"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,7 +143,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "40"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,7 +181,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "40"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,7 +219,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -251,7 +257,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "40"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -288,7 +295,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "40"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGGradientElement.json b/api/SVGGradientElement.json
index 3658394f35744a..eaeb27c2c0af49 100644
--- a/api/SVGGradientElement.json
+++ b/api/SVGGradientElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGradientElement",
         "spec_url": "https://svgwg.org/svg2-draft/pservers.html#InterfaceSVGGradientElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "gradientTransform": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGGradientElement__gradientTransform",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "gradientUnits": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGGradientElement__gradientUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "href": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "spreadMethod": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGGradientElement__spreadMethod",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGGraphicsElement.json b/api/SVGGraphicsElement.json
index a7c39339d61101..ff28ed56ef4d1b 100644
--- a/api/SVGGraphicsElement.json
+++ b/api/SVGGraphicsElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGraphicsElement",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGGraphicsElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": [
             {
@@ -13,7 +16,7 @@
               "version_added": "1",
               "version_removed": "30",
               "partial_implementation": true,
-              "notes": "The <code>SVGGraphicsElement</code> interface itself is not present, but some of its members are available on interfaces that inherit from <code>SVGGraphicsElement</code>."
+              "notes": "The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`."
             }
           ],
           "chrome_android": "mirror",
@@ -28,14 +31,14 @@
               "version_added": "1.5",
               "version_removed": "20",
               "partial_implementation": true,
-              "notes": "The <code>SVGGraphicsElement</code> interface itself is not present, but some of its members are available on interfaces that inherit from <code>SVGGraphicsElement</code>."
+              "notes": "The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`."
             }
           ],
           "firefox_android": "mirror",
           "ie": {
             "version_added": "9",
             "partial_implementation": true,
-            "notes": "The <code>SVGGraphicsElement</code> interface itself is not present, but some of its members are available on interfaces that inherit from <code>SVGGraphicsElement</code>."
+            "notes": "The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`."
           },
           "oculus": "mirror",
           "opera": [
@@ -46,7 +49,7 @@
               "version_added": "≤12.1",
               "version_removed": "17",
               "partial_implementation": true,
-              "notes": "The <code>SVGGraphicsElement</code> interface itself is not present, but some of its members are available on interfaces that inherit from <code>SVGGraphicsElement</code>."
+              "notes": "The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`."
             }
           ],
           "opera_android": [
@@ -57,7 +60,7 @@
               "version_added": "≤12.1",
               "version_removed": "18",
               "partial_implementation": true,
-              "notes": "The <code>SVGGraphicsElement</code> interface itself is not present, but some of its members are available on interfaces that inherit from <code>SVGGraphicsElement</code>."
+              "notes": "The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`."
             }
           ],
           "safari": [
@@ -68,7 +71,7 @@
               "version_added": "3",
               "version_removed": "7",
               "partial_implementation": true,
-              "notes": "The <code>SVGGraphicsElement</code> interface itself is not present, but some of its members are available on interfaces that inherit from <code>SVGGraphicsElement</code>."
+              "notes": "The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`."
             }
           ],
           "safari_ios": [
@@ -79,7 +82,7 @@
               "version_added": "1",
               "version_removed": "7",
               "partial_implementation": true,
-              "notes": "The <code>SVGGraphicsElement</code> interface itself is not present, but some of its members are available on interfaces that inherit from <code>SVGGraphicsElement</code>."
+              "notes": "The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`."
             }
           ],
           "samsunginternet_android": "mirror",
@@ -91,9 +94,10 @@
               "version_added": "3",
               "version_removed": "4.4",
               "partial_implementation": true,
-              "notes": "The <code>SVGGraphicsElement</code> interface itself is not present, but some of its members are available on interfaces that inherit from <code>SVGGraphicsElement</code>."
+              "notes": "The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`."
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -105,6 +109,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGGraphicsElement/getBBox",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGGraphicsElement__getBBox",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -116,8 +123,8 @@
             "firefox": {
               "version_added": "1.5",
               "notes": [
-                "Before Firefox 128, the <code>getBBox()</code> method retured an empty <code>DOMRect</code> when there is no fill (<a href='https://bugzil.la/1019326'>bug 1019326</a>).",
-                "Before Firefox 68, this method didn't work for <code>&lt;textPath&gt;</code> and <code>&lt;tspan&gt;</code> elements (<a href='https://bugzil.la/937268'>bug 937268</a>)."
+                "Before Firefox 128, the `getBBox()` method returned an empty `DOMRect` when there is no fill ([bug 1019326](https://bugzil.la/1019326)).",
+                "Before Firefox 68, this method didn't work for `&lt;textPath&gt;` and `&lt;tspan&gt;` elements ([bug 937268](https://bugzil.la/937268))."
               ]
             },
             "firefox_android": "mirror",
@@ -140,7 +147,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -152,6 +160,9 @@
       "getCTM": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGGraphicsElement__getCTM",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -183,7 +194,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,6 +207,9 @@
       "getScreenCTM": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGGraphicsElement__getScreenCTM",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -219,16 +234,17 @@
             },
             "safari": {
               "version_added": "3",
-              "notes": "Transforms on the parent are not propagated down to its children; see <a href='https://webkit.org/b/209220'>bug 209220</a>."
+              "notes": "Transforms on the parent are not propagated down to its children; see [bug 209220](https://webkit.org/b/209220)."
             },
             "safari_ios": {
               "version_added": "1",
-              "notes": "Transforms on the parent are not propagated down to its children; see <a href='https://webkit.org/b/209220'>bug 209220</a>."
+              "notes": "Transforms on the parent are not propagated down to its children; see [bug 209220](https://webkit.org/b/209220)."
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -240,6 +256,9 @@
       "requiredExtensions": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__requiredExtensions",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -271,7 +290,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -283,6 +303,9 @@
       "systemLanguage": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -314,7 +337,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -326,6 +350,9 @@
       "transform": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGGraphicsElement__transform",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -357,7 +384,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGHKernElement.json b/api/SVGHKernElement.json
index b0dcd40f5c6e12..293526fa058feb 100644
--- a/api/SVGHKernElement.json
+++ b/api/SVGHKernElement.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGImageElement.json b/api/SVGImageElement.json
index 04d4822e46eca1..20d6b47b34cf6f 100644
--- a/api/SVGImageElement.json
+++ b/api/SVGImageElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGImageElement",
         "spec_url": "https://svgwg.org/svg2-draft/embedded.html#InterfaceSVGImageElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "crossOrigin": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#__svg__SVGImageElement__crossOrigin",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "118"
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,9 +86,12 @@
       },
       "decode": {
         "__compat": {
-          "description": "<code>decode()</code>",
+          "description": "`decode()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGImageElement/decode",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-decode-dev",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -102,7 +113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -115,6 +127,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGImageElement/decoding",
           "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-decoding",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "65"
@@ -136,7 +151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -149,6 +165,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGImageElement/height",
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#__svg__SVGImageElement__height",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -180,7 +199,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -192,6 +212,9 @@
       "href": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -223,7 +246,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -236,6 +260,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGImageElement/preserveAspectRatio",
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#PreserveAspectRatioAttribute",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -267,7 +294,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -280,6 +308,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGImageElement/width",
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#__svg__SVGImageElement__width",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -311,7 +342,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -324,6 +356,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGImageElement/x",
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#__svg__SVGImageElement__x",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -355,7 +390,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -368,6 +404,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGImageElement/y",
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#__svg__SVGImageElement__y",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -399,7 +438,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGLength.json b/api/SVGLength.json
index b88211d96cac2d..9cd70e037d65aa 100644
--- a/api/SVGLength.json
+++ b/api/SVGLength.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLength",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGLength",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "convertToSpecifiedUnits": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGLength__convertToSpecifiedUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "newValueSpecifiedUnits": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGLength__newValueSpecifiedUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "unitType": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGLength__unitType",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "value": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGLength__value",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -218,6 +238,9 @@
       "valueAsString": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGLength__valueAsString",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -249,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,6 +285,9 @@
       "valueInSpecifiedUnits": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGLength__valueInSpecifiedUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -292,7 +319,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGLengthList.json b/api/SVGLengthList.json
index bc776d12e83d5b..495fa42425dc01 100644
--- a/api/SVGLengthList.json
+++ b/api/SVGLengthList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGLengthList",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,10 @@
       },
       "appendItem": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList/appendItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -76,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +96,10 @@
       },
       "clear": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList/clear",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -118,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -129,6 +143,10 @@
       },
       "getItem": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList/getItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -160,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +190,10 @@
       },
       "initialize": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList/initialize",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -202,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -213,6 +237,10 @@
       },
       "insertItemBefore": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList/insertItemBefore",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -244,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -255,6 +284,10 @@
       },
       "length": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList/length",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -280,7 +313,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,6 +325,10 @@
       },
       "numberOfItems": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList/numberOfItems",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -322,7 +360,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -333,6 +372,10 @@
       },
       "removeItem": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList/removeItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -364,7 +407,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -375,6 +419,10 @@
       },
       "replaceItem": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLengthList/replaceItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -406,7 +454,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGLineElement.json b/api/SVGLineElement.json
index f46b39b8c0f3df..607ebb1a9ef1e3 100644
--- a/api/SVGLineElement.json
+++ b/api/SVGLineElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLineElement",
         "spec_url": "https://svgwg.org/svg2-draft/shapes.html#InterfaceSVGLineElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "x1": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGLineElement__x1",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "x2": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGLineElement__x2",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "y1": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGLineElement__y1",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "y2": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGLineElement__y2",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGLinearGradientElement.json b/api/SVGLinearGradientElement.json
index e2bd89dddead60..512a212eafc443 100644
--- a/api/SVGLinearGradientElement.json
+++ b/api/SVGLinearGradientElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGLinearGradientElement",
         "spec_url": "https://svgwg.org/svg2-draft/pservers.html#InterfaceSVGLinearGradientElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "x1": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGLinearGradientElement__x1",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "x2": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGLinearGradientElement__x2",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "y1": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGLinearGradientElement__y1",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "y2": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGLinearGradientElement__y2",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGMPathElement.json b/api/SVGMPathElement.json
index f913c6c1e0cb24..420e3794ebbe80 100644
--- a/api/SVGMPathElement.json
+++ b/api/SVGMPathElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMPathElement",
         "spec_url": "https://svgwg.org/specs/animations/#InterfaceSVGMPathElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "19"
@@ -29,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,6 +44,9 @@
       "href": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "19"
@@ -65,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGMarkerElement.json b/api/SVGMarkerElement.json
index 50e8859cab6311..beba99e72dc06e 100644
--- a/api/SVGMarkerElement.json
+++ b/api/SVGMarkerElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement",
         "spec_url": "https://svgwg.org/svg2-draft/painting.html#InterfaceSVGMarkerElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/markerHeight",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__markerHeight",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/markerUnits",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__markerUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -122,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,6 +147,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/markerWidth",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__markerWidth",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -166,7 +181,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,6 +194,9 @@
       "orient": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__orient",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -199,7 +218,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,6 +232,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/orientAngle",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__orientAngle",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -243,7 +266,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -256,6 +280,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/orientType",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__orientType",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -287,7 +314,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -300,6 +328,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/preserveAspectRatio",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__preserveAspectRatio",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -331,7 +362,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -344,6 +376,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/refX",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__refX",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -375,7 +410,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -388,6 +424,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/refY",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__refY",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -419,7 +458,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,6 +472,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/setOrientToAngle",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__setOrientToAngle",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -463,7 +506,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -476,6 +520,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/setOrientToAuto",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#__svg__SVGMarkerElement__setOrientToAuto",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -507,7 +554,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -520,6 +568,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/viewBox",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__viewBox",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -551,7 +602,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGMaskElement.json b/api/SVGMaskElement.json
index 627bb21fda00ce..edf10aeef3b3fa 100644
--- a/api/SVGMaskElement.json
+++ b/api/SVGMaskElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMaskElement",
         "spec_url": "https://drafts.fxtf.org/css-masking/#InterfaceSVGMaskElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMaskElement/height",
           "spec_url": "https://drafts.fxtf.org/css-masking/#dom-svgmaskelement-height",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMaskElement/maskContentUnits",
           "spec_url": "https://drafts.fxtf.org/css-masking/#dom-svgmaskelement-maskcontentunits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -133,6 +145,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMaskElement/maskUnits",
           "spec_url": "https://drafts.fxtf.org/css-masking/#dom-svgmaskelement-maskunits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -162,7 +177,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMaskElement/width",
           "spec_url": "https://drafts.fxtf.org/css-masking/#dom-svgmaskelement-width",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -219,6 +239,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMaskElement/x",
           "spec_url": "https://drafts.fxtf.org/css-masking/#dom-svgmaskelement-x",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -250,7 +273,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -263,6 +287,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMaskElement/y",
           "spec_url": "https://drafts.fxtf.org/css-masking/#dom-svgmaskelement-y",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -294,7 +321,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGMetadataElement.json b/api/SVGMetadataElement.json
index e728c0a106fbaa..031e169aebc941 100644
--- a/api/SVGMetadataElement.json
+++ b/api/SVGMetadataElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGMetadataElement",
         "spec_url": "https://svgwg.org/svg2-draft/struct.html#InterfaceSVGMetadataElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGMissingGlyphElement.json b/api/SVGMissingGlyphElement.json
index 48c822bb605a6c..b481d1c168a8b2 100644
--- a/api/SVGMissingGlyphElement.json
+++ b/api/SVGMissingGlyphElement.json
@@ -36,7 +36,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGNumber.json b/api/SVGNumber.json
index ee504460896c14..d5034b33ec9c5c 100644
--- a/api/SVGNumber.json
+++ b/api/SVGNumber.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGNumber",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGNumber",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "value": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNumber__value",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGNumberList.json b/api/SVGNumberList.json
index 8ca7e4bcfaa890..51d123af8d8c18 100644
--- a/api/SVGNumberList.json
+++ b/api/SVGNumberList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGNumberList",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGNumberList",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "6"
@@ -33,7 +36,8 @@
             "version_added": "4"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
       },
       "appendItem": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
       },
       "clear": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,6 +131,9 @@
       },
       "getItem": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -146,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -157,6 +173,9 @@
       },
       "initialize": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -184,7 +203,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,6 +215,9 @@
       },
       "insertItemBefore": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -222,7 +245,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,6 +257,9 @@
       },
       "length": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -258,7 +285,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -269,6 +297,9 @@
       },
       "numberOfItems": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -296,7 +327,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -307,6 +339,9 @@
       },
       "removeItem": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -334,7 +369,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -345,6 +381,9 @@
       },
       "replaceItem": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -372,7 +411,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGPathElement.json b/api/SVGPathElement.json
index 8f36d649f3579a..f5575cfbf2e6d2 100644
--- a/api/SVGPathElement.json
+++ b/api/SVGPathElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPathElement",
         "spec_url": "https://svgwg.org/svg2-draft/paths.html#InterfaceSVGPathElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -82,7 +86,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,7 +135,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,7 +184,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -226,7 +233,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +282,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -322,7 +331,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -370,7 +380,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -418,7 +429,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -466,7 +478,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -514,7 +527,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -562,7 +576,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -610,7 +625,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -658,7 +674,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -706,7 +723,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -754,7 +772,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -802,7 +821,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -850,7 +870,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -898,7 +919,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -946,7 +968,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "48"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -967,22 +990,10 @@
               "version_added": "12",
               "version_removed": "79"
             },
-            "firefox": [
-              {
-                "version_added": "97",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.svg.pathSeg.enabled",
-                    "value_to_set": "true"
-                  }
-                ]
-              },
-              {
-                "version_added": "1.5",
-                "version_removed": "97"
-              }
-            ],
+            "firefox": {
+              "version_added": "1.5",
+              "version_removed": "97"
+            },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9"
@@ -1006,7 +1017,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "62"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGPatternElement.json b/api/SVGPatternElement.json
index b16ca576469c3a..91021b08153268 100644
--- a/api/SVGPatternElement.json
+++ b/api/SVGPatternElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPatternElement",
         "spec_url": "https://svgwg.org/svg2-draft/pservers.html#InterfaceSVGPatternElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGPatternElement__height",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "href": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "patternContentUnits": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGPatternElement__patternContentUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "patternTransform": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGPatternElement__patternTransform",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -218,6 +238,9 @@
       "patternUnits": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGPatternElement__patternUnits",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -249,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,6 +285,9 @@
       "preserveAspectRatio": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__preserveAspectRatio",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -292,7 +319,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -304,6 +332,9 @@
       "viewBox": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__viewBox",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -335,7 +366,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -347,6 +379,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGPatternElement__width",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -378,7 +413,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -390,6 +426,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGPatternElement__x",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -421,7 +460,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -433,6 +473,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGPatternElement__y",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -464,7 +507,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGPoint.json b/api/SVGPoint.json
index 49a13f0f0e452c..b5d2b3f5e5f163 100644
--- a/api/SVGPoint.json
+++ b/api/SVGPoint.json
@@ -35,7 +35,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -77,7 +78,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -120,7 +122,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,7 +166,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGPointList.json b/api/SVGPointList.json
index bb82624b9bf6a8..e1ffa5992a2436 100644
--- a/api/SVGPointList.json
+++ b/api/SVGPointList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList",
         "spec_url": "https://svgwg.org/svg2-draft/shapes.html#InterfaceSVGPointList",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList/appendItem",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__appendItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList/clear",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__clear",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -122,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,6 +147,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList/getItem",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__getItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -166,7 +181,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -179,6 +195,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList/initialize",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__initialize",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -210,7 +229,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,6 +243,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList/insertItemBefore",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__insertItemBefore",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -254,7 +277,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -267,6 +291,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList/length",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__length",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -292,7 +319,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -305,6 +333,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList/numberOfItems",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__numberOfItems",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -336,7 +367,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -349,6 +381,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList/removeItem",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__removeItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -380,7 +415,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -393,6 +429,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPointList/replaceItem",
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__replaceItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -424,7 +463,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGPolygonElement.json b/api/SVGPolygonElement.json
index ac9c7a39d30a05..9918ea0e037423 100644
--- a/api/SVGPolygonElement.json
+++ b/api/SVGPolygonElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPolygonElement",
         "spec_url": "https://svgwg.org/svg2-draft/shapes.html#InterfaceSVGPolygonElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "animatedPoints": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGAnimatedPoints__animatedPoints",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "points": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGAnimatedPoints__points",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGPolylineElement.json b/api/SVGPolylineElement.json
index aa605a0ed39326..c13bde297f7f0b 100644
--- a/api/SVGPolylineElement.json
+++ b/api/SVGPolylineElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPolylineElement",
         "spec_url": "https://svgwg.org/svg2-draft/shapes.html#InterfaceSVGPolylineElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "animatedPoints": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGAnimatedPoints__animatedPoints",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "points": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGAnimatedPoints__points",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGPreserveAspectRatio.json b/api/SVGPreserveAspectRatio.json
index 68a8ee2220d6c5..7830a2317c5b1d 100644
--- a/api/SVGPreserveAspectRatio.json
+++ b/api/SVGPreserveAspectRatio.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGPreserveAspectRatio",
         "spec_url": "https://svgwg.org/svg2-draft/coords.html#InterfaceSVGPreserveAspectRatio",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "align": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGPreserveAspectRatio__align",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -79,7 +86,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
       "meetOrSlice": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGPreserveAspectRatio__meetOrSlice",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -124,7 +135,8 @@
             },
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGRadialGradientElement.json b/api/SVGRadialGradientElement.json
index b848eabc9db8f4..685ea3c0cc7a42 100644
--- a/api/SVGRadialGradientElement.json
+++ b/api/SVGRadialGradientElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGRadialGradientElement",
         "spec_url": "https://svgwg.org/svg2-draft/pservers.html#InterfaceSVGRadialGradientElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "cx": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGRadialGradientElement__cx",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "cy": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGRadialGradientElement__cy",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "fr": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGRadialGradientElement__fr",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -153,7 +168,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -165,6 +181,9 @@
       "fx": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGRadialGradientElement__fx",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -196,7 +215,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,6 +228,9 @@
       "fy": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGRadialGradientElement__fy",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -239,7 +262,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -251,6 +275,9 @@
       "r": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGRadialGradientElement__r",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -282,7 +309,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGRect.json b/api/SVGRect.json
index 45f999fdfa731a..719a88b64fac10 100644
--- a/api/SVGRect.json
+++ b/api/SVGRect.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGRect",
         "spec_url": "https://drafts.fxtf.org/geometry/#DOMRect",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
       },
       "height": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -76,7 +83,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
       },
       "width": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -118,7 +129,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,6 +142,9 @@
       "x": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGRect/x",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -161,7 +176,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -172,6 +188,9 @@
       },
       "y": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -203,7 +222,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGRectElement.json b/api/SVGRectElement.json
index c09bc1d2399dee..d806753bad943b 100644
--- a/api/SVGRectElement.json
+++ b/api/SVGRectElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGRectElement",
         "spec_url": "https://svgwg.org/svg2-draft/shapes.html#InterfaceSVGRectElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGRectElement__height",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "rx": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGRectElement__rx",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -118,7 +129,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,6 +142,9 @@
       "ry": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGRectElement__ry",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -159,7 +174,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +187,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGRectElement__width",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -202,7 +221,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,6 +234,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGRectElement__x",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -245,7 +268,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -257,6 +281,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#__svg__SVGRectElement__y",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -288,7 +315,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGRenderingIntent.json b/api/SVGRenderingIntent.json
index f02e4ca638af76..a8ca0c5a943dd7 100644
--- a/api/SVGRenderingIntent.json
+++ b/api/SVGRenderingIntent.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "45"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGSVGElement.json b/api/SVGSVGElement.json
index c02bb821a5d7dc..2ade3f06b739a4 100644
--- a/api/SVGSVGElement.json
+++ b/api/SVGSVGElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGSVGElement",
         "spec_url": "https://svgwg.org/svg2-draft/struct.html#InterfaceSVGSVGElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
       },
       "animationsPaused": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -74,7 +81,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -86,6 +94,9 @@
       "checkEnclosure": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__checkEnclosure",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -118,7 +129,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,6 +142,9 @@
       "checkIntersection": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__checkIntersection",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -162,7 +177,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,6 +190,9 @@
       "createSVGAngle": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__createSVGAngle",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -205,7 +224,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -217,6 +237,9 @@
       "createSVGLength": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__createSVGLength",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -248,7 +271,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -260,6 +284,9 @@
       "createSVGMatrix": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__createSVGMatrix",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -291,7 +318,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -303,6 +331,9 @@
       "createSVGNumber": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__createSVGNumber",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -334,7 +365,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -346,6 +378,9 @@
       "createSVGPoint": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__createSVGPoint",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -377,7 +412,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -389,6 +425,9 @@
       "createSVGRect": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__createSVGRect",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -420,7 +459,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,6 +472,9 @@
       "createSVGTransform": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__createSVGTransform",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -463,7 +506,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -475,6 +519,9 @@
       "createSVGTransformFromMatrix": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__createSVGTransformFromMatrix",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -506,7 +553,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -518,6 +566,9 @@
       "currentScale": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__currentScale",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -549,7 +600,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -561,6 +613,9 @@
       "currentTranslate": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__currentTranslate",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -592,7 +647,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -627,7 +683,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -639,6 +696,9 @@
       "deselectAll": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__deselectAll",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -670,7 +730,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -713,7 +774,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -724,6 +786,9 @@
       },
       "getCurrentTime": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -755,7 +820,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -767,6 +833,9 @@
       "getElementById": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__getElementById",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "7"
@@ -796,7 +865,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -808,6 +878,9 @@
       "getEnclosureList": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__getEnclosureList",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -839,7 +912,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -851,6 +925,9 @@
       "getIntersectionList": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__getIntersectionList",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -882,7 +959,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -894,6 +972,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__height",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -925,7 +1006,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -936,6 +1018,9 @@
       },
       "pauseAnimations": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -967,7 +1052,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -979,6 +1065,9 @@
       "preserveAspectRatio": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__preserveAspectRatio",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1010,7 +1099,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1021,6 +1111,9 @@
       },
       "setCurrentTime": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1052,7 +1145,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1095,7 +1189,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1106,6 +1201,9 @@
       },
       "unpauseAnimations": {
         "__compat": {
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1137,7 +1235,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1180,7 +1279,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1223,7 +1323,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1270,7 +1371,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "56"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1282,6 +1384,9 @@
       "viewBox": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__viewBox",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1313,7 +1418,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1325,6 +1431,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__width",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1356,7 +1465,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1368,6 +1478,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__x",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1399,7 +1512,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1411,6 +1525,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__y",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1442,7 +1559,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGScriptElement.json b/api/SVGScriptElement.json
index 8592abc0d46ea7..d7a97bc1480821 100644
--- a/api/SVGScriptElement.json
+++ b/api/SVGScriptElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGScriptElement",
         "spec_url": "https://svgwg.org/svg2-draft/interact.html#InterfaceSVGScriptElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
       },
       "async": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -66,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -78,6 +86,9 @@
       "crossOrigin": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/interact.html#__svg__SVGScriptElement__crossOrigin",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -99,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,6 +122,9 @@
       },
       "defer": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -131,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -143,6 +159,9 @@
       "href": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -174,7 +193,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -186,6 +206,9 @@
       "type": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/interact.html#__svg__SVGScriptElement__type",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -217,7 +240,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGSetElement.json b/api/SVGSetElement.json
index 55da95c4e3ba58..63d3d82c8e007d 100644
--- a/api/SVGSetElement.json
+++ b/api/SVGSetElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGSetElement",
         "spec_url": "https://svgwg.org/specs/animations/#InterfaceSVGSetElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "2"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGStopElement.json b/api/SVGStopElement.json
index b33bb1e87498b7..abc1db1ad19136 100644
--- a/api/SVGStopElement.json
+++ b/api/SVGStopElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGStopElement",
         "spec_url": "https://svgwg.org/svg2-draft/pservers.html#InterfaceSVGStopElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "offset": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#__svg__SVGStopElement__offset",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGStringList.json b/api/SVGStringList.json
index cc01e84df2d25a..c247f0198aa870 100644
--- a/api/SVGStringList.json
+++ b/api/SVGStringList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGStringList",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGStringList",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -14,11 +17,11 @@
           },
           "firefox": {
             "version_added": "12",
-            "notes": "Since version 13, <code>SVGStringList</code> is indexable like Array which is a non-standard behavior."
+            "notes": "Since version 13, `SVGStringList` is indexable like Array which is a non-standard behavior."
           },
           "firefox_android": {
             "version_added": "14",
-            "notes": "<code>SVGStringList</code> is indexable like Array which is a non-standard behavior."
+            "notes": "`SVGStringList` is indexable like Array which is a non-standard behavior."
           },
           "ie": {
             "version_added": "9"
@@ -39,7 +42,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,6 +53,9 @@
       },
       "appendItem": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -80,7 +87,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
       },
       "clear": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -122,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -133,6 +145,9 @@
       },
       "getItem": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -164,7 +179,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       },
       "initialize": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -217,6 +237,9 @@
       },
       "insertItemBefore": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -248,7 +271,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -260,6 +284,9 @@
       "length": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__length",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -285,7 +312,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -296,6 +324,9 @@
       },
       "numberOfItems": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -327,7 +358,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -338,6 +370,9 @@
       },
       "removeItem": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -369,7 +404,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -380,6 +416,9 @@
       },
       "replaceItem": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -411,7 +450,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGStyleElement.json b/api/SVGStyleElement.json
index 8557af29cb7422..2f7e3e47a797f3 100644
--- a/api/SVGStyleElement.json
+++ b/api/SVGStyleElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGStyleElement",
         "spec_url": "https://svgwg.org/svg2-draft/styling.html#InterfaceSVGStyleElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGStyleElement/disabled",
           "spec_url": "https://svgwg.org/svg2-draft/styling.html#__svg__SVGStyleElement__disabled",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "45"
@@ -68,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGStyleElement/media",
           "spec_url": "https://svgwg.org/svg2-draft/styling.html#__svg__SVGStyleElement__media",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -112,7 +123,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,6 +137,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGStyleElement/sheet",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-linkstyle-sheet",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "38"
@@ -164,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGStyleElement/title",
           "spec_url": "https://svgwg.org/svg2-draft/styling.html#__svg__SVGStyleElement__title",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -208,7 +227,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -252,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGSwitchElement.json b/api/SVGSwitchElement.json
index 0ba26fb2decff2..029b70838c3c2d 100644
--- a/api/SVGSwitchElement.json
+++ b/api/SVGSwitchElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGSwitchElement",
         "spec_url": "https://svgwg.org/svg2-draft/struct.html#InterfaceSVGSwitchElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGSymbolElement.json b/api/SVGSymbolElement.json
index 75e049c5062ed3..75186721fe39ef 100644
--- a/api/SVGSymbolElement.json
+++ b/api/SVGSymbolElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGSymbolElement",
         "spec_url": "https://svgwg.org/svg2-draft/struct.html#InterfaceSVGSymbolElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "preserveAspectRatio": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__preserveAspectRatio",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "viewBox": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__viewBox",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGTRefElement.json b/api/SVGTRefElement.json
index 0aabb4d79f3e1e..650345d1d83e48 100644
--- a/api/SVGTRefElement.json
+++ b/api/SVGTRefElement.json
@@ -36,7 +36,8 @@
           "webview_android": {
             "version_added": "1",
             "version_removed": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGTSpanElement.json b/api/SVGTSpanElement.json
index cccabd039c3912..f15ee766485ce3 100644
--- a/api/SVGTSpanElement.json
+++ b/api/SVGTSpanElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGTSpanElement",
         "spec_url": "https://svgwg.org/svg2-draft/text.html#InterfaceSVGTSpanElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGTextContentElement.json b/api/SVGTextContentElement.json
index 3c9c21949cd6fa..e79a3aac5e7a50 100644
--- a/api/SVGTextContentElement.json
+++ b/api/SVGTextContentElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGTextContentElement",
         "spec_url": "https://svgwg.org/svg2-draft/text.html#InterfaceSVGTextContentElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "getCharNumAtPosition": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getCharNumAtPosition",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "getComputedTextLength": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getComputedTextLength",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "getEndPositionOfChar": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getEndPositionOfChar",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "getExtentOfChar": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getExtentOfChar",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -218,6 +238,9 @@
       "getNumberOfChars": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getNumberOfChars",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -249,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,6 +285,9 @@
       "getRotationOfChar": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getRotationOfChar",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -292,7 +319,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -304,6 +332,9 @@
       "getStartPositionOfChar": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getStartPositionOfChar",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -335,7 +366,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -347,6 +379,9 @@
       "getSubStringLength": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getSubStringLength",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -378,7 +413,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -390,6 +426,9 @@
       "lengthAdjust": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__lengthAdjust",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -421,7 +460,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -464,7 +504,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -476,6 +517,9 @@
       "textLength": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__textLength",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -507,7 +551,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGTextElement.json b/api/SVGTextElement.json
index 2dc21f35af65a6..6df2cb3722a1f2 100644
--- a/api/SVGTextElement.json
+++ b/api/SVGTextElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGTextElement",
         "spec_url": "https://svgwg.org/svg2-draft/text.html#InterfaceSVGTextElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGTextPathElement.json b/api/SVGTextPathElement.json
index 7bc2828b7e1db3..3339d5f7783e62 100644
--- a/api/SVGTextPathElement.json
+++ b/api/SVGTextPathElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGTextPathElement",
         "spec_url": "https://svgwg.org/svg2-draft/text.html#InterfaceSVGTextPathElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,6 +48,9 @@
       "href": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -73,7 +80,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,6 +93,9 @@
       "method": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextPathElement__method",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -114,7 +125,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,6 +138,9 @@
       "spacing": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextPathElement__spacing",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -155,7 +170,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -167,6 +183,9 @@
       "startOffset": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextPathElement__startOffset",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -196,7 +215,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGTextPositioningElement.json b/api/SVGTextPositioningElement.json
index 237b4a1a1cb5b4..a5c21b1f45a69c 100644
--- a/api/SVGTextPositioningElement.json
+++ b/api/SVGTextPositioningElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGTextPositioningElement",
         "spec_url": "https://svgwg.org/svg2-draft/text.html#InterfaceSVGTextPositioningElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "dx": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextPositioningElement__dx",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "dy": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextPositioningElement__dy",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "rotate": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextPositioningElement__rotate",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextPositioningElement__x",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -218,6 +238,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/text.html#__svg__SVGTextPositioningElement__y",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -249,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGTitleElement.json b/api/SVGTitleElement.json
index 644a3432b90074..2e9d195f0166a9 100644
--- a/api/SVGTitleElement.json
+++ b/api/SVGTitleElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGTitleElement",
         "spec_url": "https://svgwg.org/svg2-draft/struct.html#InterfaceSVGTitleElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGTransform.json b/api/SVGTransform.json
index db827ec0a31fb6..30c2569395e9e8 100644
--- a/api/SVGTransform.json
+++ b/api/SVGTransform.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGTransform",
         "spec_url": "https://svgwg.org/svg2-draft/coords.html#InterfaceSVGTransform",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -44,6 +48,9 @@
       "angle": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransform__angle",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -73,7 +80,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,6 +93,9 @@
       "matrix": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransform__matrix",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -114,7 +125,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,6 +138,9 @@
       "setMatrix": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransform__setMatrix",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -155,7 +170,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -167,6 +183,9 @@
       "setRotate": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransform__setRotate",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -196,7 +215,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,6 +228,9 @@
       "setScale": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransform__setScale",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -237,7 +260,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,6 +273,9 @@
       "setSkewX": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransform__setSkewX",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -278,7 +305,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -290,6 +318,9 @@
       "setSkewY": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransform__setSkewY",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -319,7 +350,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -331,6 +363,9 @@
       "setTranslate": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransform__setTranslate",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -360,7 +395,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -372,6 +408,9 @@
       "type": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransform__type",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -401,7 +440,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGTransformList.json b/api/SVGTransformList.json
index 45506df7a8deba..906d7ac262faa9 100644
--- a/api/SVGTransformList.json
+++ b/api/SVGTransformList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGTransformList",
         "spec_url": "https://svgwg.org/svg2-draft/coords.html#InterfaceSVGTransformList",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "appendItem": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__appendItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "clear": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__clear",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,6 +144,9 @@
       "consolidate": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransformList__consolidate",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,6 +191,9 @@
       "createSVGTransformFromMatrix": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#__svg__SVGTransformList__createSVGTransformFromMatrix",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -206,7 +225,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -218,6 +238,9 @@
       "getItem": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__getItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -249,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,6 +285,9 @@
       "initialize": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__initialize",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -292,7 +319,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -304,6 +332,9 @@
       "insertItemBefore": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__insertItemBefore",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -335,7 +366,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -347,6 +379,9 @@
       "length": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__length",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -374,7 +409,8 @@
             "samsunginternet_android": {
               "version_added": "1.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -386,6 +422,9 @@
       "numberOfItems": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__numberOfItems",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -417,7 +456,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -429,6 +469,9 @@
       "removeItem": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__removeItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -460,7 +503,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -472,6 +516,9 @@
       "replaceItem": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGNameList__replaceItem",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -503,7 +550,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGUnitTypes.json b/api/SVGUnitTypes.json
index 38187dcbcae6d3..3620089d50f36d 100644
--- a/api/SVGUnitTypes.json
+++ b/api/SVGUnitTypes.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGUnitTypes",
         "spec_url": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGUnitTypes",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGUseElement.json b/api/SVGUseElement.json
index d115c2fa81b7f9..c84cb94e71b9e7 100644
--- a/api/SVGUseElement.json
+++ b/api/SVGUseElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGUseElement",
         "spec_url": "https://svgwg.org/svg2-draft/struct.html#InterfaceSVGUseElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGUseElement__height",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -75,7 +82,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
       "href": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGURIReference__href",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -118,7 +129,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,6 +142,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGUseElement__width",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -159,7 +174,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,6 +187,9 @@
       "x": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGUseElement__x",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -200,7 +219,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,6 +232,9 @@
       "y": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#__svg__SVGUseElement__y",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -241,7 +264,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SVGVKernElement.json b/api/SVGVKernElement.json
index 3291aa2b4618cc..b1e29e6674cc3f 100644
--- a/api/SVGVKernElement.json
+++ b/api/SVGVKernElement.json
@@ -30,7 +30,8 @@
           "webview_android": {
             "version_added": "≤37",
             "version_removed": "40"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/SVGViewElement.json b/api/SVGViewElement.json
index e3c770b0e33209..b3520cf0ef1d5a 100644
--- a/api/SVGViewElement.json
+++ b/api/SVGViewElement.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SVGViewElement",
         "spec_url": "https://svgwg.org/svg2-draft/linking.html#InterfaceSVGViewElement",
+        "tags": [
+          "web-features:svg"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "preserveAspectRatio": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__preserveAspectRatio",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -77,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +97,9 @@
       "viewBox": {
         "__compat": {
           "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGFitToViewBox__viewBox",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -120,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Scheduler.json b/api/Scheduler.json
index e2e22aa91b36f7..fa683f29755e09 100644
--- a/api/Scheduler.json
+++ b/api/Scheduler.json
@@ -36,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -79,7 +80,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +89,44 @@
             "deprecated": false
           }
         }
+      },
+      "yield": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Scheduler/yield",
+          "spec_url": "https://wicg.github.io/scheduling-apis/#dom-scheduler-yield",
+          "tags": [
+            "web-features:scheduler"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
       }
     }
   }
diff --git a/api/Scheduling.json b/api/Scheduling.json
index 4f86bc8beb9f14..ac91cb26b1d8fa 100644
--- a/api/Scheduling.json
+++ b/api/Scheduling.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Screen.json b/api/Screen.json
index c0bb9dc589a2be..86085a40a96127 100644
--- a/api/Screen.json
+++ b/api/Screen.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -114,7 +117,7 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -138,7 +141,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -172,7 +176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -182,7 +187,7 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -206,7 +211,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -248,7 +254,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -259,9 +266,12 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Screen/change_event",
           "spec_url": "https://w3c.github.io/window-management/#api-screen-onchange-attribute",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -283,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -327,7 +338,8 @@
               "version_added": "1.0",
               "notes": "Starting with Samsung Internet 7.0 this property is no longer required to always return 24."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -367,7 +379,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -380,6 +393,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Screen/isExtended",
           "spec_url": "https://w3c.github.io/window-management/#api-screen-isExtended-attribute",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -401,7 +417,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -434,7 +451,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -444,7 +462,7 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
             "support": {
               "chrome": {
                 "version_added": false
@@ -466,7 +484,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -506,7 +525,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -546,7 +566,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -586,7 +607,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -616,7 +638,7 @@
               {
                 "prefix": "ms",
                 "version_added": "12",
-                "notes": "Edge does not return an <code>Orientation</code> object; instead, it returns the orientation type as a string."
+                "notes": "Edge does not return an `Orientation` object; instead, it returns the orientation type as a string."
               }
             ],
             "firefox": [
@@ -642,7 +664,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -653,7 +676,7 @@
       },
       "orientationchange_event": {
         "__compat": {
-          "description": "<code>orientationchange</code> event",
+          "description": "`orientationchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Screen/orientationchange_event",
           "support": {
             "chrome": {
@@ -684,7 +707,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -728,7 +752,8 @@
               "version_added": "1.0",
               "notes": "Starting with Samsung Internet 7.0 this property is no longer required to always return 24."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -761,7 +786,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -771,7 +797,7 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
             "support": {
               "chrome": {
                 "version_added": false
@@ -793,12 +819,13 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": false,
-              "deprecated": false
+              "deprecated": true
             }
           }
         }
@@ -833,7 +860,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -873,7 +901,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ScreenDetailed.json b/api/ScreenDetailed.json
index 6d634537c800b4..db1b28ad1b664c 100644
--- a/api/ScreenDetailed.json
+++ b/api/ScreenDetailed.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetailed",
         "spec_url": "https://w3c.github.io/window-management/#api-screendetailed-interface",
+        "tags": [
+          "web-features:window-management"
+        ],
         "support": {
           "chrome": {
             "version_added": "100"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetailed/availLeft",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetailed-availleft",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetailed/availTop",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetailed-availtop",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetailed/devicePixelRatio",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetailed-devicepixelratio",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetailed/isInternal",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetailed-isinternal",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -170,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -183,6 +203,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetailed/isPrimary",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetailed-isprimary",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -206,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -219,6 +243,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetailed/label",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetailed-label",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -242,7 +269,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -255,6 +283,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetailed/left",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetailed-left",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -278,7 +309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -291,6 +323,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetailed/top",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetailed-top",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -314,7 +349,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ScreenDetails.json b/api/ScreenDetails.json
index 012220b828c3ac..6d346a670e485b 100644
--- a/api/ScreenDetails.json
+++ b/api/ScreenDetails.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetails",
         "spec_url": "https://w3c.github.io/window-management/#api-screendetails-interface",
+        "tags": [
+          "web-features:window-management"
+        ],
         "support": {
           "chrome": {
             "version_added": "100"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetails/currentScreen",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetails-currentscreen",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -73,12 +81,15 @@
       },
       "currentscreenchange_event": {
         "__compat": {
-          "description": "<code>currentscreenchange</code> event",
+          "description": "`currentscreenchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetails/currentscreenchange_event",
           "spec_url": [
             "https://w3c.github.io/window-management/#eventdef-screendetails-currentscreenchange",
             "https://w3c.github.io/window-management/#ref-for-dom-screendetails-oncurrentscreenchange"
           ],
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -102,7 +113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -115,6 +127,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetails/screens",
           "spec_url": "https://w3c.github.io/window-management/#ref-for-dom-screendetails-screens",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -138,7 +153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -149,12 +165,15 @@
       },
       "screenschange_event": {
         "__compat": {
-          "description": "<code>screenschange</code> event",
+          "description": "`screenschange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenDetails/screenschange_event",
           "spec_url": [
             "https://w3c.github.io/window-management/#eventdef-screendetails-screenschange",
             "https://w3c.github.io/window-management/#ref-for-dom-screendetails-onscreenschange"
           ],
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -178,7 +197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ScreenOrientation.json b/api/ScreenOrientation.json
index 0c803f423ffbaf..45cb183edfff91 100644
--- a/api/ScreenOrientation.json
+++ b/api/ScreenOrientation.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,7 +77,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScreenOrientation/change_event",
           "spec_url": "https://w3c.github.io/screen-orientation/#dom-screenorientation-onchange",
           "tags": [
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -122,7 +125,7 @@
             "chrome": {
               "version_added": "38",
               "partial_implementation": true,
-              "notes": "Always throws <code>NotSupportedError</code>."
+              "notes": "Always throws `NotSupportedError`."
             },
             "chrome_android": {
               "version_added": "38"
@@ -135,7 +138,7 @@
               {
                 "version_added": "43",
                 "partial_implementation": true,
-                "notes": "Always throws <code>NotSupportedError</code>."
+                "notes": "Always throws `NotSupportedError`."
               },
               {
                 "version_added": "97",
@@ -153,7 +156,7 @@
                 "version_added": "79",
                 "version_removed": "97",
                 "partial_implementation": true,
-                "notes": "The API exists but returns <code>NS_ERROR_UNEXPECTED</code>."
+                "notes": "The API exists but returns `NS_ERROR_UNEXPECTED`."
               },
               {
                 "version_added": "43",
@@ -171,7 +174,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,7 +212,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -228,7 +233,7 @@
             "chrome": {
               "version_added": "38",
               "partial_implementation": true,
-              "notes": "Always throws <code>NotSupportedError</code>."
+              "notes": "Always throws `NotSupportedError`."
             },
             "chrome_android": {
               "version_added": "38"
@@ -237,7 +242,7 @@
             "firefox": {
               "version_added": "43",
               "partial_implementation": true,
-              "notes": "Always throws <code>NotSupportedError</code>."
+              "notes": "Always throws `NotSupportedError`."
             },
             "firefox_android": {
               "version_added": "43"
@@ -253,7 +258,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ScriptProcessorNode.json b/api/ScriptProcessorNode.json
index fcee9817585650..fab9a208fbe5fb 100644
--- a/api/ScriptProcessorNode.json
+++ b/api/ScriptProcessorNode.json
@@ -28,7 +28,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "audioprocess_event": {
         "__compat": {
-          "description": "<code>audioprocess</code> event",
+          "description": "`audioprocess` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScriptProcessorNode/audioprocess_event",
           "support": {
             "chrome": {
@@ -65,7 +66,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +105,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ScrollTimeline.json b/api/ScrollTimeline.json
index ee0c2172c81b59..38926f98bac188 100644
--- a/api/ScrollTimeline.json
+++ b/api/ScrollTimeline.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "ScrollTimeline": {
         "__compat": {
-          "description": "<code>ScrollTimeline()</code> constructor",
+          "description": "`ScrollTimeline()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ScrollTimeline/ScrollTimeline",
           "spec_url": "https://drafts.csswg.org/scroll-animations/#dom-scrolltimeline-scrolltimeline",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/SecurityPolicyViolationEvent.json b/api/SecurityPolicyViolationEvent.json
index 0ddc766b651a8f..a8d6c5ea6eb83a 100644
--- a/api/SecurityPolicyViolationEvent.json
+++ b/api/SecurityPolicyViolationEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent",
         "spec_url": "https://w3c.github.io/webappsec-csp/#report-violation",
+        "tags": [
+          "web-features:csp"
+        ],
         "support": {
           "chrome": {
             "version_added": "41"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,9 +41,12 @@
       },
       "SecurityPolicyViolationEvent": {
         "__compat": {
-          "description": "<code>SecurityPolicyViolationEvent()</code> constructor",
+          "description": "`SecurityPolicyViolationEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/SecurityPolicyViolationEvent",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-securitypolicyviolationevent",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -63,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,6 +83,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/blockedURI",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-blockeduri",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/columnNumber",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-columnnumber",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -170,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -183,6 +203,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/disposition",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-disposition",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -204,7 +227,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -217,6 +241,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/documentURI",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-documenturi",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -240,7 +267,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -253,6 +281,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/effectiveDirective",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-effectivedirective",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -276,7 +307,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -289,6 +321,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/lineNumber",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-linenumber",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -312,7 +347,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -325,6 +361,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/originalPolicy",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-originalpolicy",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -348,7 +387,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -361,6 +401,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/referrer",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-referrer",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -384,7 +427,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -397,6 +441,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/sample",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-sample",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -418,7 +465,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -431,6 +479,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/sourceFile",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-sourcefile",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -454,7 +505,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -467,6 +519,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/statusCode",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-statuscode",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -490,7 +545,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -503,6 +559,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/violatedDirective",
           "spec_url": "https://w3c.github.io/webappsec-csp/#dom-securitypolicyviolationevent-violateddirective",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -526,7 +585,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Selection.json b/api/Selection.json
index b9f62794f2c308..399763213688aa 100644
--- a/api/Selection.json
+++ b/api/Selection.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection",
         "spec_url": "https://w3c.github.io/selection-api/#selection-interface",
+        "tags": [
+          "web-features:selection-api"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/addRange",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-addrange",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -72,7 +79,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,6 +93,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/anchorNode",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-anchornode",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -112,7 +123,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,6 +137,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/anchorOffset",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-anchoroffset",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -152,7 +167,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -165,6 +181,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/collapse",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-collapse",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -192,7 +211,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -202,7 +222,7 @@
         },
         "accepts_nodes_in_shadow_trees": {
           "__compat": {
-            "description": "Accepts <code>node</code> parameter in any tree/shadow tree",
+            "description": "Accepts `node` parameter in any tree/shadow tree",
             "support": {
               "chrome": {
                 "version_added": false
@@ -224,7 +244,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -235,7 +256,7 @@
         },
         "node_parameter_nullable": {
           "__compat": {
-            "description": "<code>node</code> parameter is nullable",
+            "description": "`node` parameter is nullable",
             "support": {
               "chrome": {
                 "version_added": "39"
@@ -259,7 +280,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -270,7 +292,7 @@
         },
         "offset_parameter_optional": {
           "__compat": {
-            "description": "<code>offset</code> parameter is optional",
+            "description": "`offset` parameter is optional",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -298,7 +320,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -312,6 +335,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/collapseToEnd",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-collapsetoend",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -339,7 +365,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -352,6 +379,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/collapseToStart",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-collapsetostart",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -379,7 +409,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -392,6 +423,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/containsNode",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-containsnode",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -402,7 +436,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 35, the method didn't throw if <code>node</code> was <code>null</code>."
+              "notes": "Before Firefox 35, the method didn't throw if `node` was `null`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -420,7 +454,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -430,7 +465,7 @@
         },
         "partialContainment_parameter_optional": {
           "__compat": {
-            "description": "<code>partialContainment</code> parameter is optional",
+            "description": "`partialContainment` parameter is optional",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -460,7 +495,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -474,6 +510,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/deleteFromDocument",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-deletefromdocument",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -501,7 +540,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -514,6 +554,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/direction",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-direction",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -535,7 +578,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -546,9 +590,12 @@
       },
       "empty": {
         "__compat": {
-          "description": "<code>empty()</code> as alias of <code>removeAllRanges()</code>",
+          "description": "`empty()` as alias of `removeAllRanges()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/removeAllRanges",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-removeallranges",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -572,7 +619,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -585,6 +633,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/extend",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-extend",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -612,7 +663,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -622,7 +674,7 @@
         },
         "accepts_nodes_in_shadow_trees": {
           "__compat": {
-            "description": "Accepts <code>node</code> parameter in any tree/shadow tree",
+            "description": "Accepts `node` parameter in any tree/shadow tree",
             "support": {
               "chrome": {
                 "version_added": false
@@ -644,7 +696,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -655,7 +708,7 @@
         },
         "offset_parameter_optional": {
           "__compat": {
-            "description": "<code>offset</code> parameter is optional",
+            "description": "`offset` parameter is optional",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -685,7 +738,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -699,6 +753,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/focusNode",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-focusnode",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -726,7 +783,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -739,6 +797,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/focusOffset",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-focusoffset",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -766,7 +827,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -779,6 +841,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/getComposedRanges",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-getcomposedranges",
+          "tags": [
+            "web-features:composed-ranges"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -800,7 +865,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -832,7 +898,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -846,6 +913,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/getRangeAt",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-getrangeat",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -875,7 +945,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -888,6 +959,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/isCollapsed",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-iscollapsed",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -915,7 +989,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -928,6 +1003,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/modify",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-modify",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -949,7 +1027,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -962,6 +1041,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/rangeCount",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-rangecount",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -991,7 +1073,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1004,6 +1087,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/removeAllRanges",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-removeallranges",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1033,7 +1119,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1046,6 +1133,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/removeRange",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-removerange",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -1085,7 +1175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1098,6 +1189,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/selectAllChildren",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-selectallchildren",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1125,7 +1219,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1138,6 +1233,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/setBaseAndExtent",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-setbaseandextent",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1161,7 +1259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1171,7 +1270,7 @@
         },
         "accepts_nodes_in_shadow_trees": {
           "__compat": {
-            "description": "Accepts <code>anchorNode</code> and <code>focusNode</code> arguments in different shadow trees",
+            "description": "Accepts `anchorNode` and `focusNode` arguments in different shadow trees",
             "support": {
               "chrome": {
                 "version_added": false
@@ -1193,7 +1292,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1205,9 +1305,12 @@
       },
       "setPosition": {
         "__compat": {
-          "description": "<code>setPosition()</code> as alias of <code>collapse()</code>",
+          "description": "`setPosition()` as alias of `collapse()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/collapse",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-collapse",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1231,7 +1334,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1244,6 +1348,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/toString",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-stringifier",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1271,7 +1378,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1284,6 +1392,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Selection/type",
           "spec_url": "https://w3c.github.io/selection-api/#dom-selection-type",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1307,7 +1418,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Sensor.json b/api/Sensor.json
index fdd1b212ddfc85..dd738613a91745 100644
--- a/api/Sensor.json
+++ b/api/Sensor.json
@@ -11,7 +11,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1432631"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -21,11 +22,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/81352"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +38,7 @@
       },
       "activate_event": {
         "__compat": {
-          "description": "<code>activate</code> event",
+          "description": "`activate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Sensor/activate_event",
           "spec_url": "https://w3c.github.io/sensors/#sensor-onactivate",
           "support": {
@@ -59,7 +62,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +109,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Sensor/error_event",
           "spec_url": "https://w3c.github.io/sensors/#sensor-onerror",
           "support": {
@@ -128,7 +133,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,7 +168,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,7 +180,7 @@
       },
       "reading_event": {
         "__compat": {
-          "description": "<code>reading</code> event",
+          "description": "`reading` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Sensor/reading_event",
           "spec_url": "https://w3c.github.io/sensors/#sensor-onreading",
           "support": {
@@ -197,7 +204,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -231,7 +239,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -265,7 +274,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -299,7 +309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SensorErrorEvent.json b/api/SensorErrorEvent.json
index e7167b97a4dc37..ee752720456125 100644
--- a/api/SensorErrorEvent.json
+++ b/api/SensorErrorEvent.json
@@ -11,7 +11,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1432631"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -21,11 +22,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/81352"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +38,7 @@
       },
       "SensorErrorEvent": {
         "__compat": {
-          "description": "<code>SensorErrorEvent()</code> constructor",
+          "description": "`SensorErrorEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SensorErrorEvent/SensorErrorEvent",
           "spec_url": "https://w3c.github.io/sensors/#dom-sensorerrorevent-sensorerrorevent",
           "support": {
@@ -59,7 +62,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Serial.json b/api/Serial.json
index 31134814ac40c9..824cc819670533 100644
--- a/api/Serial.json
+++ b/api/Serial.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Serial",
         "spec_url": "https://wicg.github.io/serial/#serial-interface",
+        "tags": [
+          "web-features:serial"
+        ],
         "support": {
           "chrome": {
             "version_added": "89"
@@ -27,7 +30,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": {
+            "version_added": false,
+            "impl_url": "https://crbug.com/40740509"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Serial/getPorts",
           "spec_url": "https://wicg.github.io/serial/#dom-serial-getports",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -62,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +86,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Serial/requestPort",
           "spec_url": "https://wicg.github.io/serial/#dom-serial-requestport",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -98,13 +112,94 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "allowedBluetoothServiceClassIds_option": {
+          "__compat": {
+            "description": "`allowedBluetoothServiceClassIds` option",
+            "spec_url": "https://wicg.github.io/serial/#dom-serialportrequestoptions-allowedbluetoothserviceclassids",
+            "tags": [
+              "web-features:serial"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "117"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "filters_bluetoothServiceClassId": {
+          "__compat": {
+            "description": "`filters` `bluetoothServiceClassId` property",
+            "spec_url": "https://wicg.github.io/serial/#dom-serialportfilter-bluetoothserviceclassid",
+            "tags": [
+              "web-features:serial"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "117"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/api/SerialPort.json b/api/SerialPort.json
index 3d44a08652d00e..7bcd797222dcc5 100644
--- a/api/SerialPort.json
+++ b/api/SerialPort.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort",
         "spec_url": "https://wicg.github.io/serial/#dom-serialport",
+        "tags": [
+          "web-features:serial"
+        ],
         "support": {
           "chrome": {
             "version_added": "89"
@@ -27,7 +30,11 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": {
+            "version_added": false,
+            "impl_url": "https://crbug.com/40740509"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/close",
           "spec_url": "https://wicg.github.io/serial/#dom-serialport-close",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -62,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -73,12 +84,15 @@
       },
       "connect_event": {
         "__compat": {
-          "description": "<code>connect</code> event",
+          "description": "`connect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/connect_event",
           "spec_url": [
             "https://wicg.github.io/serial/#dfn-connect",
             "https://wicg.github.io/serial/#dom-serialport-onconnect"
           ],
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -102,7 +116,87 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        },
+        "bluetooth_rfcomm": {
+          "__compat": {
+            "description": "Bluetooth RFCOMM serial ports dispatch `connect` events",
+            "tags": [
+              "web-features:serial"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "130"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        }
+      },
+      "connected": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/connected",
+          "spec_url": "https://wicg.github.io/serial/#dom-serialport-connected",
+          "tags": [
+            "web-features:serial"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "130"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -113,12 +207,15 @@
       },
       "disconnect_event": {
         "__compat": {
-          "description": "<code>disconnect</code> event",
+          "description": "`disconnect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/disconnect_event",
           "spec_url": [
             "https://wicg.github.io/serial/#dfn-disconnect",
             "https://wicg.github.io/serial/#dom-serialport-ondisconnect"
           ],
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -142,19 +239,62 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "bluetooth_rfcomm": {
+          "__compat": {
+            "description": "Bluetooth RFCOMM serial ports dispatch `disconnect` events",
+            "tags": [
+              "web-features:serial"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "130"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "forget": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/forget",
           "spec_url": "https://wicg.github.io/serial/#dom-serialport-forget",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "103"
@@ -178,7 +318,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -191,6 +332,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/getInfo",
           "spec_url": "https://wicg.github.io/serial/#dom-serialport-getinfo",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -214,19 +358,63 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "bluetoothServiceClassId": {
+          "__compat": {
+            "description": "`bluetoothServiceClassId` return value property",
+            "spec_url": "https://wicg.github.io/serial/#dom-serialportinfo-bluetoothserviceclassid",
+            "tags": [
+              "web-features:serial"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "117"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "getSignals": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/getSignals",
           "spec_url": "https://wicg.github.io/serial/#dom-serialport-getsignals",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -250,7 +438,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -263,6 +452,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/open",
           "spec_url": "https://wicg.github.io/serial/#dom-serialport-open",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -286,7 +478,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -299,6 +492,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/readable",
           "spec_url": "https://wicg.github.io/serial/#dom-serialport-readable",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -322,7 +518,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -335,6 +532,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/setSignals",
           "spec_url": "https://wicg.github.io/serial/#dom-serialport-setsignals",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -358,7 +558,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -371,6 +572,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SerialPort/writable",
           "spec_url": "https://wicg.github.io/serial/#dom-serialport-writable",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -394,7 +598,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ServiceWorker.json b/api/ServiceWorker.json
index 1d3e7006326635..b0a88df4a66cef 100644
--- a/api/ServiceWorker.json
+++ b/api/ServiceWorker.json
@@ -27,7 +27,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -66,7 +69,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -77,7 +83,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorker/error_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#handler-abstractworker-onerror",
           "support": {
@@ -103,7 +109,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -142,7 +151,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -178,7 +190,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -214,7 +229,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -225,7 +243,7 @@
       },
       "statechange_event": {
         "__compat": {
-          "description": "<code>statechange</code> event",
+          "description": "`statechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorker/statechange_event",
           "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworker-onstatechange",
           "support": {
@@ -251,7 +269,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/ServiceWorkerContainer.json b/api/ServiceWorkerContainer.json
index 236484d70f5934..e3ff24025b8369 100644
--- a/api/ServiceWorkerContainer.json
+++ b/api/ServiceWorkerContainer.json
@@ -27,7 +27,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -35,20 +38,18 @@
           "deprecated": false
         }
       },
-      "controller": {
+      "worker_support": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/controller",
-          "spec_url": "https://w3c.github.io/ServiceWorker/#navigator-service-worker-controller",
+          "description": "Available in workers",
           "support": {
             "chrome": {
-              "version_added": "40"
+              "version_added": false,
+              "impl_url": "https://crbug.com/40364838"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "17"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "44"
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -62,7 +63,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -71,11 +75,10 @@
           }
         }
       },
-      "controllerchange_event": {
+      "controller": {
         "__compat": {
-          "description": "<code>controllerchange</code> event",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/controllerchange_event",
-          "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkercontainer-oncontrollerchange",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/controller",
+          "spec_url": "https://w3c.github.io/ServiceWorker/#navigator-service-worker-controller",
           "support": {
             "chrome": {
               "version_added": "40"
@@ -99,7 +102,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -108,20 +114,21 @@
           }
         }
       },
-      "error_event": {
+      "controllerchange_event": {
         "__compat": {
-          "description": "<code>error</code> event",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/error_event",
+          "description": "`controllerchange` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/controllerchange_event",
+          "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkercontainer-oncontrollerchange",
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "40"
             },
             "chrome_android": "mirror",
-            "edge": "mirror",
+            "edge": {
+              "version_added": "17"
+            },
             "firefox": {
-              "version_added": "44",
-              "version_removed": "106",
-              "impl_url": "https://bugzil.la/1714533"
+              "version_added": "44"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -131,16 +138,19 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "11.1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
-            "standard_track": false,
-            "deprecated": true
+            "standard_track": true,
+            "deprecated": false
           }
         }
       },
@@ -171,7 +181,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -215,6 +228,9 @@
             },
             "webview_android": {
               "version_added": "40"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -226,7 +242,7 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/message_event",
           "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkercontainer-onmessage",
           "support": {
@@ -252,7 +268,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -263,7 +282,7 @@
       },
       "messageerror_event": {
         "__compat": {
-          "description": "<code>messageerror</code> event",
+          "description": "`messageerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/messageerror_event",
           "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkerglobalscope-onmessageerror",
           "tags": [
@@ -301,12 +320,15 @@
                 "version_added": "11.1",
                 "version_removed": "16.4",
                 "partial_implementation": true,
-                "notes": "Although the <code>onmessageerror</code> event handler property is supported, the <code>messageerror</code> event is never fired. See <a href='https://webkit.org/b/171216'>bug 171216</a>."
+                "notes": "Although the `onmessageerror` event handler property is supported, the `messageerror` event is never fired."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -342,7 +364,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -378,7 +403,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -414,7 +442,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/ServiceWorkerGlobalScope.json b/api/ServiceWorkerGlobalScope.json
index 3a33f5964c8950..3d0b297cefe746 100644
--- a/api/ServiceWorkerGlobalScope.json
+++ b/api/ServiceWorkerGlobalScope.json
@@ -31,7 +31,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -41,7 +44,7 @@
       },
       "abortpayment_event": {
         "__compat": {
-          "description": "<code>abortpayment</code> event",
+          "description": "`abortpayment` event",
           "support": {
             "chrome": {
               "version_added": "70"
@@ -65,7 +68,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -76,7 +80,7 @@
       },
       "activate_event": {
         "__compat": {
-          "description": "<code>activate</code> event",
+          "description": "`activate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/activate_event",
           "spec_url": [
             "https://w3c.github.io/ServiceWorker/#service-worker-global-scope-activate-event",
@@ -109,7 +113,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -120,7 +127,7 @@
       },
       "backgroundfetchabort_event": {
         "__compat": {
-          "description": "<code>backgroundfetchabort</code> event",
+          "description": "`backgroundfetchabort` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchabort_event",
           "spec_url": "https://wicg.github.io/background-fetch/#dom-serviceworkerglobalscope-onbackgroundfetchabort",
           "tags": [
@@ -149,7 +156,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -160,7 +168,7 @@
       },
       "backgroundfetchclick_event": {
         "__compat": {
-          "description": "<code>backgroundfetchclick</code> event",
+          "description": "`backgroundfetchclick` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchclick_event",
           "spec_url": "https://wicg.github.io/background-fetch/#dom-serviceworkerglobalscope-onbackgroundfetchclick",
           "tags": [
@@ -189,7 +197,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -200,7 +209,7 @@
       },
       "backgroundfetchfail_event": {
         "__compat": {
-          "description": "<code>backgroundfetchfail</code> event",
+          "description": "`backgroundfetchfail` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchfail_event",
           "spec_url": "https://wicg.github.io/background-fetch/#dom-serviceworkerglobalscope-onbackgroundfetchfail",
           "tags": [
@@ -229,7 +238,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -240,7 +250,7 @@
       },
       "backgroundfetchsuccess_event": {
         "__compat": {
-          "description": "<code>backgroundfetchsuccess</code> event",
+          "description": "`backgroundfetchsuccess` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchsuccess_event",
           "spec_url": "https://wicg.github.io/background-fetch/#dom-serviceworkerglobalscope-onbackgroundfetchsuccess",
           "tags": [
@@ -269,7 +279,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -280,9 +291,12 @@
       },
       "canmakepayment_event": {
         "__compat": {
-          "description": "<code>canmakepayment</code> event",
+          "description": "`canmakepayment` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/canmakepayment_event",
           "spec_url": "https://w3c.github.io/payment-handler/#the-canmakepaymentevent",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -290,7 +304,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1465682"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -306,7 +321,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -346,7 +362,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -357,7 +376,7 @@
       },
       "contentdelete_event": {
         "__compat": {
-          "description": "<code>contentdelete</code> event",
+          "description": "`contentdelete` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/contentdelete_event",
           "spec_url": "https://wicg.github.io/content-index/spec/#dom-serviceworkerglobalscope-oncontentdelete",
           "support": {
@@ -383,7 +402,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -394,7 +414,7 @@
       },
       "cookiechange_event": {
         "__compat": {
-          "description": "<code>cookiechange</code> event",
+          "description": "`cookiechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/cookiechange_event",
           "spec_url": "https://wicg.github.io/cookie-store/#dom-serviceworkerglobalscope-oncookiechange",
           "support": {
@@ -418,7 +438,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -438,7 +459,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -452,7 +473,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -463,7 +485,7 @@
       },
       "fetch_event": {
         "__compat": {
-          "description": "<code>fetch</code> event",
+          "description": "`fetch` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/fetch_event",
           "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkerglobalscope-onfetch",
           "support": {
@@ -493,7 +515,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -504,7 +529,7 @@
       },
       "install_event": {
         "__compat": {
-          "description": "<code>install</code> event",
+          "description": "`install` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/install_event",
           "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkerglobalscope-oninstall",
           "support": {
@@ -534,7 +559,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -545,7 +573,7 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/message_event",
           "spec_url": [
             "https://w3c.github.io/ServiceWorker/#eventdef-serviceworkerglobalscope-message",
@@ -578,7 +606,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -589,7 +620,7 @@
       },
       "messageerror_event": {
         "__compat": {
-          "description": "<code>messageerror</code> event",
+          "description": "`messageerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/messageerror_event",
           "spec_url": [
             "https://w3c.github.io/ServiceWorker/#eventdef-serviceworkerglobalscope-messageerror",
@@ -614,11 +645,14 @@
             "safari": {
               "version_added": "11.1",
               "partial_implementation": true,
-              "notes": "Although the <code>onmessageerror</code> property is supported, the <code>messageerror</code> event is never fired. See <a href='https://webkit.org/b/272967'>bug 272967</a>."
+              "notes": "Although the `onmessageerror` property is supported, the `messageerror` event is never fired. See [bug 272967](https://webkit.org/b/272967)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -629,7 +663,7 @@
       },
       "notificationclick_event": {
         "__compat": {
-          "description": "<code>notificationclick</code> event",
+          "description": "`notificationclick` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/notificationclick_event",
           "spec_url": [
             "https://notifications.spec.whatwg.org/#activating-a-notification",
@@ -663,7 +697,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -674,7 +709,7 @@
       },
       "notificationclose_event": {
         "__compat": {
-          "description": "<code>notificationclose</code> event",
+          "description": "`notificationclose` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/notificationclose_event",
           "spec_url": "https://notifications.spec.whatwg.org/#dom-serviceworkerglobalscope-onnotificationclose",
           "support": {
@@ -707,7 +742,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -718,9 +754,12 @@
       },
       "paymentrequest_event": {
         "__compat": {
-          "description": "<code>paymentrequest</code> event",
+          "description": "`paymentrequest` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/paymentrequest_event",
           "spec_url": "https://w3c.github.io/payment-handler/#the-paymentrequestevent",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -728,7 +767,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1465682"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -744,7 +784,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -755,7 +796,7 @@
       },
       "periodicsync_event": {
         "__compat": {
-          "description": "<code>periodicsync</code> event",
+          "description": "`periodicsync` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/periodicsync_event",
           "spec_url": [
             "https://wicg.github.io/periodic-background-sync/#periodicsync-event",
@@ -783,8 +824,10 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40151529"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -795,7 +838,7 @@
       },
       "push_event": {
         "__compat": {
-          "description": "<code>push</code> event",
+          "description": "`push` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event",
           "spec_url": [
             "https://w3c.github.io/push-api/#extensions-to-the-serviceworkerglobalscope-interface",
@@ -837,7 +880,11 @@
               "notes": "Notifications are supported in web apps saved to the home screen."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
+            }
           },
           "status": {
             "experimental": false,
@@ -848,12 +895,15 @@
       },
       "pushsubscriptionchange_event": {
         "__compat": {
-          "description": "<code>pushsubscriptionchange</code> event",
+          "description": "`pushsubscriptionchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event",
           "spec_url": [
             "https://w3c.github.io/push-api/#the-pushsubscriptionchange-event",
             "https://w3c.github.io/push-api/#dom-serviceworkerglobalscope-onpushsubscriptionchange"
           ],
+          "tags": [
+            "web-features:push"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
@@ -867,12 +917,12 @@
             "firefox": {
               "version_added": "44",
               "partial_implementation": true,
-              "notes": "The event does not have the <code>oldSubscription</code> and <code>newSubscription</code> properties. See <a href='https://bugzil.la/1497429'>bug 1497429</a>."
+              "notes": "The event does not have the `oldSubscription` and `newSubscription` properties. See [bug 1497429](https://bugzil.la/1497429)."
             },
             "firefox_android": {
               "version_added": "48",
               "partial_implementation": true,
-              "notes": "The event does not have the <code>oldSubscription</code> and <code>newSubscription</code> properties. See <a href='https://bugzil.la/1497429'>bug 1497429</a>."
+              "notes": "The event does not have the `oldSubscription` and `newSubscription` properties. See [bug 1497429](https://bugzil.la/1497429)."
             },
             "ie": {
               "version_added": false
@@ -888,7 +938,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -928,7 +979,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -962,7 +1016,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -1002,7 +1059,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -1013,7 +1073,7 @@
       },
       "sync_event": {
         "__compat": {
-          "description": "<code>sync</code> event",
+          "description": "`sync` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/sync_event",
           "spec_url": "https://wicg.github.io/background-sync/spec/#dom-serviceworkerglobalscope-onsync",
           "tags": [
@@ -1040,11 +1100,13 @@
               "version_added": "24"
             },
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/182565"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ServiceWorkerRegistration.json b/api/ServiceWorkerRegistration.json
index 8877f6f6dcc31e..42ac2c6f4490ee 100644
--- a/api/ServiceWorkerRegistration.json
+++ b/api/ServiceWorkerRegistration.json
@@ -7,6 +7,9 @@
           "https://w3c.github.io/ServiceWorker/#serviceworkerregistration-interface",
           "https://w3c.github.io/push-api/#extensions-to-the-serviceworkerregistration-interface"
         ],
+        "tags": [
+          "web-features:push"
+        ],
         "support": {
           "chrome": {
             "version_added": "40"
@@ -30,7 +33,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -65,7 +71,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -104,7 +113,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -138,7 +148,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -180,7 +191,11 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/551446"
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -217,7 +232,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -253,7 +269,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -291,7 +310,10 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -304,6 +326,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/paymentManager",
           "spec_url": "https://w3c.github.io/payment-handler/#dom-serviceworkerregistration-paymentmanager",
+          "tags": [
+            "web-features:payment-handler"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -311,7 +336,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1465682"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -327,7 +353,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -361,7 +388,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40151529"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -407,8 +438,11 @@
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": {
               "version_added": false,
-              "impl_url": "https://crbug.com/421921"
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -445,7 +479,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -487,7 +524,11 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/421921"
+              "impl_url": "https://crbug.com/40443309"
+            },
+            "webview_ios": {
+              "version_added": false,
+              "notes": "Notifications are supported in web apps saved to the home screen."
             }
           },
           "status": {
@@ -498,7 +539,7 @@
         },
         "options_actions_parameter": {
           "__compat": {
-            "description": "<code>options.actions</code> parameter",
+            "description": "`options.actions` parameter",
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -524,7 +565,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -535,7 +577,7 @@
         },
         "options_badge_parameter": {
           "__compat": {
-            "description": "<code>options.badge</code> parameter",
+            "description": "`options.badge` parameter",
             "support": {
               "chrome": {
                 "version_added": "53"
@@ -566,6 +608,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
+              },
+              "webview_ios": {
+                "version_added": false
               }
             },
             "status": {
@@ -577,7 +622,7 @@
         },
         "options_data_parameter": {
           "__compat": {
-            "description": "<code>options.data</code> parameter",
+            "description": "`options.data` parameter",
             "support": {
               "chrome": {
                 "version_added": "44"
@@ -603,7 +648,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -614,7 +660,7 @@
         },
         "options_image_parameter": {
           "__compat": {
-            "description": "<code>options.image</code> parameter",
+            "description": "`options.image` parameter",
             "support": {
               "chrome": {
                 "version_added": "56"
@@ -640,7 +686,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -651,7 +698,7 @@
         },
         "options_renotify_parameter": {
           "__compat": {
-            "description": "<code>options.renotify</code> parameter",
+            "description": "`options.renotify` parameter",
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -677,7 +724,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -688,7 +736,7 @@
         },
         "options_requireInteraction_parameter": {
           "__compat": {
-            "description": "<code>options.requireInteraction</code> parameter",
+            "description": "`options.requireInteraction` parameter",
             "support": {
               "chrome": {
                 "version_added": "47"
@@ -714,7 +762,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -725,14 +774,14 @@
         },
         "options_vibrate_parameter": {
           "__compat": {
-            "description": "<code>options.vibrate</code> parameter",
+            "description": "`options.vibrate` parameter",
             "support": {
               "chrome": {
                 "version_added": "45"
               },
               "chrome_android": {
                 "version_added": false,
-                "notes": "In Android Oreo and above, setting this parameter has no effect."
+                "notes": "In Android Oreo and above, regardless of Chrome version, this parameter has no effect. See <a href='https://crbug.com/40630890'>bug 40630890</a>."
               },
               "edge": {
                 "version_added": "≤79"
@@ -754,7 +803,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -788,13 +838,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/182565"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -830,7 +882,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -876,7 +931,10 @@
                 "Before Samsung Internet 5.0, this method always bypassed the browser cache. Starting with Samsung Internet 5.0, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago."
               ]
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -887,7 +945,7 @@
       },
       "updatefound_event": {
         "__compat": {
-          "description": "<code>updatefound</code> event",
+          "description": "`updatefound` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/updatefound_event",
           "spec_url": "https://w3c.github.io/ServiceWorker/#dom-serviceworkerregistration-onupdatefound",
           "support": {
@@ -913,7 +971,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -949,7 +1010,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -985,7 +1049,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/ShadowRoot.json b/api/ShadowRoot.json
index 93f74b8d6fc12b..379f8713d61f50 100644
--- a/api/ShadowRoot.json
+++ b/api/ShadowRoot.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -61,7 +62,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,7 +102,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,7 +140,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -185,7 +190,7 @@
           "support": {
             "chrome": {
               "version_added": "53",
-              "notes": "Before Chrome 66, this method returned <code>null</code> when the element was a child of a host node. See <a href='https://crbug.com/759947'>bug 759947</a>."
+              "notes": "Before Chrome 66, this method returned `null` when the element was a child of a host node. See [bug 40537452](https://crbug.com/40537452)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -206,7 +211,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -220,7 +226,7 @@
           "support": {
             "chrome": {
               "version_added": "53",
-              "notes": "Before Chrome 66, this method returned <code>null</code> when the element was a child of a host node. See <a href='https://crbug.com/759947'>bug 759947</a>."
+              "notes": "Before Chrome 66, this method returned `null` when the element was a child of a host node. See [bug 40537452](https://crbug.com/40537452)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -245,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -295,7 +302,8 @@
               ]
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -308,6 +316,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ShadowRoot/getAnimations",
           "spec_url": "https://drafts.csswg.org/web-animations-1/#dom-documentorshadowroot-getanimations",
+          "tags": [
+            "web-features:web-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -329,7 +340,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -363,7 +375,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -395,7 +408,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -432,7 +446,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -466,7 +481,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -503,7 +519,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -543,7 +560,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -582,7 +600,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -616,7 +635,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -653,7 +673,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -690,7 +711,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -703,6 +725,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ShadowRoot/styleSheets",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-documentorshadowroot-stylesheets",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "53"
@@ -724,7 +749,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SharedStorage.json b/api/SharedStorage.json
index f692f086cf4478..6dfdad57466306 100644
--- a/api/SharedStorage.json
+++ b/api/SharedStorage.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorage",
         "spec_url": "https://wicg.github.io/shared-storage/#sharedstorage",
+        "tags": [
+          "web-features:shared-storage"
+        ],
         "support": {
           "chrome": {
             "version_added": "117"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorage/append",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorage-append",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorage/clear",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorage-clear",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -92,7 +103,47 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "createWorklet": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorage-createworklet",
+          "tags": [
+            "web-features:shared-storage"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "126"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,6 +156,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorage/delete",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorage-delete",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -126,7 +180,125 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "get": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorage-get",
+          "tags": [
+            "web-features:shared-storage"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "126"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "run": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorage-run",
+          "tags": [
+            "web-features:shared-storage"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "126"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "selectURL": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorage-selecturl",
+          "tags": [
+            "web-features:shared-storage"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "126"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,6 +311,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorage/set",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorage-set",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -160,7 +335,47 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worklet": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorage-worklet",
+          "tags": [
+            "web-features:shared-storage"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "126"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/SharedStorageOperation.json b/api/SharedStorageOperation.json
index 7a4ee723bcef94..6e6389d96eeeaf 100644
--- a/api/SharedStorageOperation.json
+++ b/api/SharedStorageOperation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorageOperation",
         "spec_url": "https://wicg.github.io/shared-storage/#sharedstorageoperation",
+        "tags": [
+          "web-features:shared-storage"
+        ],
         "support": {
           "chrome": {
             "version_added": "117"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
diff --git a/api/SharedStorageRunOperation.json b/api/SharedStorageRunOperation.json
index c29831c95d2489..b14ea81eb199f0 100644
--- a/api/SharedStorageRunOperation.json
+++ b/api/SharedStorageRunOperation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorageRunOperation",
         "spec_url": "https://wicg.github.io/shared-storage/#sharedstoragerunoperation",
+        "tags": [
+          "web-features:shared-storage"
+        ],
         "support": {
           "chrome": {
             "version_added": "117"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorageRunOperation/run",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstoragerunoperation-run",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/SharedStorageSelectURLOperation.json b/api/SharedStorageSelectURLOperation.json
index 185b50852d03df..2c8f48d9449817 100644
--- a/api/SharedStorageSelectURLOperation.json
+++ b/api/SharedStorageSelectURLOperation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorageSelectURLOperation",
         "spec_url": "https://wicg.github.io/shared-storage/#sharedstorageselecturloperation",
+        "tags": [
+          "web-features:shared-storage"
+        ],
         "support": {
           "chrome": {
             "version_added": "117"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorageSelectURLOperation/run",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorageselecturloperation-run",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/SharedStorageWorklet.json b/api/SharedStorageWorklet.json
index a83dc15e525227..c5613e6e06a949 100644
--- a/api/SharedStorageWorklet.json
+++ b/api/SharedStorageWorklet.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorageWorklet",
         "spec_url": "https://wicg.github.io/shared-storage/#sharedstorageworklet",
+        "tags": [
+          "web-features:shared-storage"
+        ],
         "support": {
           "chrome": {
             "version_added": "117"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -36,6 +40,9 @@
       "run": {
         "__compat": {
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorageworklet-run",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -57,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -69,6 +77,9 @@
       "selectURL": {
         "__compat": {
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorageworklet-selecturl",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -90,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/SharedStorageWorkletGlobalScope.json b/api/SharedStorageWorkletGlobalScope.json
index f3eed71062a9a8..94ee88cbe7c373 100644
--- a/api/SharedStorageWorkletGlobalScope.json
+++ b/api/SharedStorageWorkletGlobalScope.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorageWorkletGlobalScope",
         "spec_url": "https://wicg.github.io/shared-storage/#sharedstorageworkletglobalscope",
+        "tags": [
+          "web-features:shared-storage"
+        ],
         "support": {
           "chrome": {
             "version_added": "117"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorageWorkletGlobalScope/register",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorageworkletglobalscope-register",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedStorageWorkletGlobalScope/sharedStorage",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-sharedstorageworkletglobalscope-sharedstorage",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/SharedWorker.json b/api/SharedWorker.json
index a28fa11bdd22b4..9d8b170738feaf 100644
--- a/api/SharedWorker.json
+++ b/api/SharedWorker.json
@@ -52,7 +52,8 @@
             "version_added": "4.0",
             "version_removed": "5.0"
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,7 @@
       },
       "SharedWorker": {
         "__compat": {
-          "description": "<code>SharedWorker()</code> constructor",
+          "description": "`SharedWorker()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedWorker/SharedWorker",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#dom-sharedworker-dev",
           "support": {
@@ -112,7 +113,8 @@
               "version_added": "4.0",
               "version_removed": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,7 +149,7 @@
               "nodejs": {
                 "version_added": "12.17.0",
                 "partial_implementation": true,
-                "notes": "ECMAScript modules are enabled for files ending with <code>.mjs</code> and for files ending with <code>.js</code> when the nearest parent <code>package.json</code> file contains a top-level field <code>\"type\"</code> with a value of <code>\"module\"</code>."
+                "notes": "ECMAScript modules are enabled for files ending with `.mjs` and for files ending with `.js` when the nearest parent `package.json` file contains a top-level field `\"type\"` with a value of `\"module\"`."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -161,7 +163,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -176,7 +179,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/794548"
+                "impl_url": "https://crbug.com/40554522"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -195,7 +198,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -206,7 +210,7 @@
         },
         "options_name_parameter": {
           "__compat": {
-            "description": "<code>options.name</code> parameter",
+            "description": "`options.name` parameter",
             "support": {
               "chrome": {
                 "version_added": "70"
@@ -230,7 +234,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -241,8 +246,11 @@
         },
         "options_sameSiteCookies_parameter": {
           "__compat": {
-            "description": "<code>options.sameSiteCookies</code> parameter",
+            "description": "`options.sameSiteCookies` parameter",
             "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#dom-sharedworkeroptions-samesitecookies",
+            "tags": [
+              "web-features:non-cookie-storage-access"
+            ],
             "support": {
               "chrome": {
                 "version_added": "125"
@@ -268,7 +276,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -279,7 +288,7 @@
         },
         "options_type_parameter": {
           "__compat": {
-            "description": "<code>options.type</code> parameter",
+            "description": "`options.type` parameter",
             "tags": [
               "web-features:js-modules-shared-workers"
             ],
@@ -292,7 +301,7 @@
               },
               "deno": {
                 "version_added": "1.0",
-                "notes": "Only supports <code>module</code>"
+                "notes": "Only supports `module`"
               },
               "edge": "mirror",
               "firefox": {
@@ -313,7 +322,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -325,7 +335,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedWorker/error_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#handler-abstractworker-onerror",
           "support": {
@@ -375,7 +385,8 @@
               "version_added": "4.0",
               "version_removed": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -435,7 +446,8 @@
               "version_added": "4.0",
               "version_removed": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SharedWorkerGlobalScope.json b/api/SharedWorkerGlobalScope.json
index e4b9f6fb271b13..fb45dc67df26d8 100644
--- a/api/SharedWorkerGlobalScope.json
+++ b/api/SharedWorkerGlobalScope.json
@@ -48,7 +48,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -102,7 +103,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +115,7 @@
       },
       "connect_event": {
         "__compat": {
-          "description": "<code>connect</code> event",
+          "description": "`connect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SharedWorkerGlobalScope/connect_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-workerglobalscope-connect",
@@ -130,7 +132,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "29",
-              "notes": "Before version 65 the <code>data</code> property of the event object was <code>null</code>; it is now initialized to an empty string, as per spec."
+              "notes": "Before version 65 the `data` property of the event object was `null`; it is now initialized to an empty string, as per spec."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -164,7 +166,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -219,7 +222,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SnapEvent.json b/api/SnapEvent.json
new file mode 100644
index 00000000000000..cd5ed8df5c0bb4
--- /dev/null
+++ b/api/SnapEvent.json
@@ -0,0 +1,158 @@
+{
+  "api": {
+    "SnapEvent": {
+      "__compat": {
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/SnapEvent",
+        "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#snapevent-interface",
+        "tags": [
+          "web-features:scroll-snap-events"
+        ],
+        "support": {
+          "chrome": {
+            "version_added": "129"
+          },
+          "chrome_android": "mirror",
+          "edge": "mirror",
+          "firefox": {
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1843961"
+          },
+          "firefox_android": "mirror",
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
+        },
+        "status": {
+          "experimental": true,
+          "standard_track": true,
+          "deprecated": false
+        }
+      },
+      "SnapEvent": {
+        "__compat": {
+          "description": "`SnapEvent()` constructor",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SnapEvent/SnapEvent",
+          "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#dom-snapevent-snapevent",
+          "tags": [
+            "web-features:scroll-snap-events"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "snapTargetBlock": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SnapEvent/snapTargetBlock",
+          "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#dom-snapevent-snaptargetblock",
+          "tags": [
+            "web-features:scroll-snap-events"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "snapTargetInline": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/SnapEvent/snapTargetInline",
+          "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#dom-snapevent-snaptargetinline",
+          "tags": [
+            "web-features:scroll-snap-events"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/api/SourceBuffer.json b/api/SourceBuffer.json
index 3dddf49b976fba..237088da7c5410 100644
--- a/api/SourceBuffer.json
+++ b/api/SourceBuffer.json
@@ -38,6 +38,7 @@
           },
           "safari_ios": {
             "version_added": "13",
+            "impl_url": "https://webkit.org/b/200147",
             "partial_implementation": true,
             "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
           },
@@ -51,7 +52,10 @@
               "version_removed": "3.0"
             }
           ],
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -95,6 +99,9 @@
             },
             "webview_android": {
               "version_added": "4.4.3"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -127,7 +134,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -139,7 +147,7 @@
       },
       "abort_event": {
         "__compat": {
-          "description": "<code>abort</code> event",
+          "description": "`abort` event",
           "spec_url": [
             "https://w3c.github.io/media-source/#dfn-abort",
             "https://w3c.github.io/media-source/#dom-sourcebuffer-onabort"
@@ -153,7 +161,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onabort</code> event handler property is not supported."
+                "notes": "The `onabort` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -165,7 +173,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onabort</code> event handler property is not supported."
+                "notes": "The `onabort` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -187,7 +195,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onabort</code> event handler property is not supported."
+                "notes": "The `onabort` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -196,7 +204,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -228,7 +239,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -276,7 +288,10 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -308,7 +323,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -349,7 +365,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -396,7 +413,10 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -428,7 +448,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -476,7 +497,10 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -508,7 +532,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -570,7 +595,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -591,7 +619,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Currently doesn't work, even with the flag set. If invoked from a dedicated worker, Chromium crashes the renderer to avoid undesirable behavior (see <a href='https://crbug.com/487288#c24'>bug 487288</a>)."
+                "notes": "Currently doesn't work, even with the flag set. If invoked from a dedicated worker, Chromium crashes the renderer to avoid undesirable behavior (see [bug 487288](https://crbug.com/40417861#comment25))."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -610,7 +638,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -658,7 +687,10 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -690,7 +722,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -729,7 +762,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -761,7 +797,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -773,7 +810,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "spec_url": [
             "https://w3c.github.io/media-source/#dfn-error",
             "https://w3c.github.io/media-source/#dom-sourcebuffer-onerror"
@@ -787,7 +824,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onerror</code> event handler property is not supported."
+                "notes": "The `onerror` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -799,7 +836,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onerror</code> event handler property is not supported."
+                "notes": "The `onerror` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -821,7 +858,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onerror</code> event handler property is not supported."
+                "notes": "The `onerror` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -830,7 +867,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -862,7 +902,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -910,7 +951,10 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -942,7 +986,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -990,7 +1035,10 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -1022,7 +1070,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1063,7 +1112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1101,7 +1151,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": true,
@@ -1148,7 +1201,10 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -1180,7 +1236,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1192,7 +1249,7 @@
       },
       "update_event": {
         "__compat": {
-          "description": "<code>update</code> event",
+          "description": "`update` event",
           "spec_url": [
             "https://w3c.github.io/media-source/#dfn-update",
             "https://w3c.github.io/media-source/#dom-sourcebuffer-onupdate"
@@ -1206,7 +1263,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onupdate</code> event handler property is not supported."
+                "notes": "The `onupdate` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -1218,7 +1275,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onupdate</code> event handler property is not supported."
+                "notes": "The `onupdate` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -1240,7 +1297,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onupdate</code> event handler property is not supported."
+                "notes": "The `onupdate` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -1249,7 +1306,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -1281,7 +1341,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1293,7 +1354,7 @@
       },
       "updateend_event": {
         "__compat": {
-          "description": "<code>updateend</code> event",
+          "description": "`updateend` event",
           "spec_url": [
             "https://w3c.github.io/media-source/#dfn-updateend",
             "https://w3c.github.io/media-source/#dom-sourcebuffer-onupdateend"
@@ -1307,7 +1368,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onupdateend</code> event handler property is not supported."
+                "notes": "The `onupdateend` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -1319,7 +1380,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onupdateend</code> event handler property is not supported."
+                "notes": "The `onupdateend` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -1341,7 +1402,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onupdateend</code> event handler property is not supported."
+                "notes": "The `onupdateend` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -1350,7 +1411,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -1382,7 +1446,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1394,7 +1459,7 @@
       },
       "updatestart_event": {
         "__compat": {
-          "description": "<code>updatestart</code> event",
+          "description": "`updatestart` event",
           "spec_url": [
             "https://w3c.github.io/media-source/#dfn-updatestart",
             "https://w3c.github.io/media-source/#dom-sourcebuffer-onupdatestart"
@@ -1408,7 +1473,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onupdatestart</code> event handler property is not supported."
+                "notes": "The `onupdatestart` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -1420,7 +1485,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onupdatestart</code> event handler property is not supported."
+                "notes": "The `onupdatestart` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -1442,7 +1507,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onupdatestart</code> event handler property is not supported."
+                "notes": "The `onupdatestart` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -1451,7 +1516,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -1483,7 +1551,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1531,7 +1600,10 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -1563,7 +1635,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1625,7 +1698,10 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -1646,7 +1722,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "notes": "Currently doesn't work, even with the flag set. If invoked from a dedicated worker, Chromium crashes the renderer to avoid undesirable behavior (see <a href='https://crbug.com/487288#c24'>bug 487288</a>)."
+                "notes": "Currently doesn't work, even with the flag set. If invoked from a dedicated worker, Chromium crashes the renderer to avoid undesirable behavior (see [bug 487288](https://crbug.com/40417861#comment25))."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1665,7 +1741,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/SourceBufferList.json b/api/SourceBufferList.json
index 3f750977ad49f2..fbc373bee37120 100644
--- a/api/SourceBufferList.json
+++ b/api/SourceBufferList.json
@@ -44,6 +44,7 @@
           },
           "safari_ios": {
             "version_added": "13",
+            "impl_url": "https://webkit.org/b/200147",
             "partial_implementation": true,
             "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
           },
@@ -57,7 +58,8 @@
               "version_removed": "3.0"
             }
           ],
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -67,7 +69,7 @@
       },
       "addsourcebuffer_event": {
         "__compat": {
-          "description": "<code>addsourcebuffer</code> event",
+          "description": "`addsourcebuffer` event",
           "spec_url": [
             "https://w3c.github.io/media-source/#dfn-addsourcebuffer",
             "https://w3c.github.io/media-source/#dom-sourcebufferlist-onaddsourcebuffer"
@@ -81,7 +83,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onaddsourcebuffer</code> event handler property is not supported."
+                "notes": "The `onaddsourcebuffer` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -93,7 +95,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onaddsourcebuffer</code> event handler property is not supported."
+                "notes": "The `onaddsourcebuffer` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -117,7 +119,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onaddsourcebuffer</code> event handler property is not supported."
+                "notes": "The `onaddsourcebuffer` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -126,7 +128,8 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,7 +161,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -208,7 +212,8 @@
             "samsunginternet_android": {
               "version_added": "3.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -240,7 +245,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -252,7 +258,7 @@
       },
       "removesourcebuffer_event": {
         "__compat": {
-          "description": "<code>removesourcebuffer</code> event",
+          "description": "`removesourcebuffer` event",
           "spec_url": [
             "https://w3c.github.io/media-source/#dfn-removesourcebuffer",
             "https://w3c.github.io/media-source/#dom-sourcebufferlist-onremovesourcebuffer"
@@ -266,7 +272,7 @@
                 "version_added": "31",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "The <code>onremovesourcebuffer</code> event handler property is not supported."
+                "notes": "The `onremovesourcebuffer` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -278,7 +284,7 @@
                 "version_added": "12",
                 "version_removed": "17",
                 "partial_implementation": true,
-                "notes": "The <code>onremovesourcebuffer</code> event handler property is not supported."
+                "notes": "The `onremovesourcebuffer` event handler property is not supported."
               }
             ],
             "firefox": {
@@ -302,7 +308,7 @@
                 "version_added": "8",
                 "version_removed": "10.1",
                 "partial_implementation": true,
-                "notes": "The <code>onremovesourcebuffer</code> event handler property is not supported."
+                "notes": "The `onremovesourcebuffer` event handler property is not supported."
               }
             ],
             "safari_ios": {
@@ -311,7 +317,8 @@
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -343,7 +350,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/SpeechGrammar.json b/api/SpeechGrammar.json
index 175def35dbb2d1..df00a0ab98330a 100644
--- a/api/SpeechGrammar.json
+++ b/api/SpeechGrammar.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammar",
         "spec_url": "https://wicg.github.io/speech-api/#speechreco-speechgrammar",
+        "tags": [
+          "web-features:speech-recognition"
+        ],
         "support": {
           "chrome": {
             "prefix": "webkit",
@@ -36,7 +39,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -46,7 +50,7 @@
       },
       "SpeechGrammar": {
         "__compat": {
-          "description": "<code>SpeechGrammar()</code> constructor",
+          "description": "`SpeechGrammar()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammar/SpeechGrammar",
           "support": {
             "chrome": {
@@ -80,7 +84,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -93,6 +98,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammar/src",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechgrammar-src",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "25"
@@ -124,7 +132,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -137,6 +146,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammar/weight",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechgrammar-weight",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "25"
@@ -168,7 +180,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/SpeechGrammarList.json b/api/SpeechGrammarList.json
index 3499dbefec126c..e5c1780b36dcec 100644
--- a/api/SpeechGrammarList.json
+++ b/api/SpeechGrammarList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammarList",
         "spec_url": "https://wicg.github.io/speech-api/#speechgrammarlist",
+        "tags": [
+          "web-features:speech-recognition"
+        ],
         "support": {
           "chrome": {
             "prefix": "webkit",
@@ -30,7 +33,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,9 +44,12 @@
       },
       "SpeechGrammarList": {
         "__compat": {
-          "description": "<code>SpeechGrammarList()</code> constructor",
+          "description": "`SpeechGrammarList()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammarList/SpeechGrammarList",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechgrammarlist-speechgrammarlist",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "prefix": "webkit",
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -82,6 +90,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammarList/addFromString",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechgrammarlist-addfromstring",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -107,7 +118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -120,6 +132,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammarList/addFromURI",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechgrammarlist-addfromuri",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -145,7 +160,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -158,6 +174,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammarList/item",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechgrammarlist-item",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -183,7 +202,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -196,6 +216,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechGrammarList/length",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechgrammarlist-length",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -221,7 +244,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/SpeechRecognition.json b/api/SpeechRecognition.json
index 15d29a0b53d6a2..6e8f9b3cecdcdb 100644
--- a/api/SpeechRecognition.json
+++ b/api/SpeechRecognition.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition",
         "spec_url": "https://wicg.github.io/speech-api/#speechreco-section",
+        "tags": [
+          "web-features:speech-recognition"
+        ],
         "support": {
           "chrome": {
             "prefix": "webkit",
@@ -28,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,9 +42,12 @@
       },
       "SpeechRecognition": {
         "__compat": {
-          "description": "<code>SpeechRecognition()</code> constructor",
+          "description": "`SpeechRecognition()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/SpeechRecognition",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-speechrecognition",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "prefix": "webkit",
@@ -71,7 +78,8 @@
             "webview_android": {
               "prefix": "webkit",
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,6 +92,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/abort",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-abort",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -105,7 +116,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,12 +128,15 @@
       },
       "audioend_event": {
         "__compat": {
-          "description": "<code>audioend</code> event",
+          "description": "`audioend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/audioend_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-audioend",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onaudioend"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -143,7 +158,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -154,12 +170,15 @@
       },
       "audiostart_event": {
         "__compat": {
-          "description": "<code>audiostart</code> event",
+          "description": "`audiostart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/audiostart_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-audiostart",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onaudiostart"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -181,7 +200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -194,6 +214,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/continuous",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-continuous",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -215,7 +238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -226,12 +250,15 @@
       },
       "end_event": {
         "__compat": {
-          "description": "<code>end</code> event",
+          "description": "`end` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/end_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-end",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onend"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -253,7 +280,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -264,12 +292,15 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/error_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-error",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onerror"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -291,7 +322,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -304,6 +336,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/grammars",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-grammars",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -325,7 +360,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -338,6 +374,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/interimResults",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-interimresults",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -359,7 +398,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -372,6 +412,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/lang",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-lang",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -393,7 +436,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -406,6 +450,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/maxAlternatives",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-maxalternatives",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -427,7 +474,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -438,12 +486,15 @@
       },
       "nomatch_event": {
         "__compat": {
-          "description": "<code>nomatch</code> event",
+          "description": "`nomatch` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/nomatch_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-nomatch",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onnomatch"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -465,7 +516,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -476,12 +528,15 @@
       },
       "result_event": {
         "__compat": {
-          "description": "<code>result</code> event",
+          "description": "`result` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/result_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-result",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onresult"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -503,7 +558,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -514,12 +570,15 @@
       },
       "soundend_event": {
         "__compat": {
-          "description": "<code>soundend</code> event",
+          "description": "`soundend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/soundend_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-soundend",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onsoundend"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -541,7 +600,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -552,12 +612,15 @@
       },
       "soundstart_event": {
         "__compat": {
-          "description": "<code>soundstart</code> event",
+          "description": "`soundstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/soundstart_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-soundstart",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onsoundstart"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -579,7 +642,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -590,12 +654,15 @@
       },
       "speechend_event": {
         "__compat": {
-          "description": "<code>speechend</code> event",
+          "description": "`speechend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/speechend_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-speechend",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onspeechend"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -617,7 +684,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -628,12 +696,15 @@
       },
       "speechstart_event": {
         "__compat": {
-          "description": "<code>speechstart</code> event",
+          "description": "`speechstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/speechstart_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-speechstart",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onspeechstart"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -655,7 +726,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -668,6 +740,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/start",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-start",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -689,7 +764,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -700,12 +776,15 @@
       },
       "start_event": {
         "__compat": {
-          "description": "<code>start</code> event",
+          "description": "`start` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/start_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechrecognition-start",
             "https://wicg.github.io/speech-api/#dom-speechrecognition-onstart"
           ],
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -727,7 +806,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -740,6 +820,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognition/stop",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-stop",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -761,7 +844,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechRecognitionAlternative.json b/api/SpeechRecognitionAlternative.json
index c8f55cde188465..b84fce46fb5e26 100644
--- a/api/SpeechRecognitionAlternative.json
+++ b/api/SpeechRecognitionAlternative.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionAlternative",
         "spec_url": "https://wicg.github.io/speech-api/#speechreco-alternative",
+        "tags": [
+          "web-features:speech-recognition"
+        ],
         "support": {
           "chrome": {
             "version_added": "33"
@@ -29,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +45,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionAlternative/confidence",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionalternative-confidence",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -66,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,6 +87,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionAlternative/transcript",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionalternative-transcript",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -104,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechRecognitionErrorEvent.json b/api/SpeechRecognitionErrorEvent.json
index 6c6b4410c617e1..d2e73418aee91b 100644
--- a/api/SpeechRecognitionErrorEvent.json
+++ b/api/SpeechRecognitionErrorEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionErrorEvent",
         "spec_url": "https://wicg.github.io/speech-api/#speechrecognitionerrorevent",
+        "tags": [
+          "web-features:speech-recognition"
+        ],
         "support": {
           "chrome": {
             "alternative_name": "webkitSpeechRecognitionError",
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,8 +40,11 @@
       },
       "SpeechRecognitionErrorEvent": {
         "__compat": {
-          "description": "<code>SpeechRecognitionErrorEvent()</code> constructor",
+          "description": "`SpeechRecognitionErrorEvent()` constructor",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionerrorevent-speechrecognitionerrorevent",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "alternative_name": "webkitSpeechRecognitionError",
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -73,6 +81,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionErrorEvent/error",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionerrorevent-error",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -94,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,6 +119,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionErrorEvent/message",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionerrorevent-message",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -128,7 +143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechRecognitionEvent.json b/api/SpeechRecognitionEvent.json
index 6e7e9bbeed5280..689717ebf6c60b 100644
--- a/api/SpeechRecognitionEvent.json
+++ b/api/SpeechRecognitionEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionEvent",
         "spec_url": "https://wicg.github.io/speech-api/#speechreco-event",
+        "tags": [
+          "web-features:speech-recognition"
+        ],
         "support": {
           "chrome": {
             "prefix": "webkit",
@@ -30,7 +33,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,8 +44,11 @@
       },
       "SpeechRecognitionEvent": {
         "__compat": {
-          "description": "<code>SpeechRecognitionEvent()</code> constructor",
+          "description": "`SpeechRecognitionEvent()` constructor",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognition-speechrecognition",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "prefix": "webkit",
@@ -68,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,7 +113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,7 +151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,6 +165,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionEvent/resultIndex",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionevent-resultindex",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -180,7 +193,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -193,6 +207,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionEvent/results",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionevent-results",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -218,7 +235,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechRecognitionResult.json b/api/SpeechRecognitionResult.json
index d4518ff15bf789..8ffc59a3e159a6 100644
--- a/api/SpeechRecognitionResult.json
+++ b/api/SpeechRecognitionResult.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResult",
         "spec_url": "https://wicg.github.io/speech-api/#speechreco-result",
+        "tags": [
+          "web-features:speech-recognition"
+        ],
         "support": {
           "chrome": {
             "version_added": "33"
@@ -29,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +45,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResult/isFinal",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionresult-isfinal",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -66,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,6 +87,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResult/item",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionresult-item",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -104,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,6 +129,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResult/length",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionresult-length",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -142,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechRecognitionResultList.json b/api/SpeechRecognitionResultList.json
index 9b9b2f449ee9df..f5b1b51c2199fa 100644
--- a/api/SpeechRecognitionResultList.json
+++ b/api/SpeechRecognitionResultList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResultList",
         "spec_url": "https://wicg.github.io/speech-api/#speechreco-resultlist",
+        "tags": [
+          "web-features:speech-recognition"
+        ],
         "support": {
           "chrome": {
             "version_added": "33"
@@ -29,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +45,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResultList/item",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionresultlist-item",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -66,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,6 +87,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResultList/length",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechrecognitionresultlist-length",
+          "tags": [
+            "web-features:speech-recognition"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -104,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechSynthesis.json b/api/SpeechSynthesis.json
index bf1fb22f7431ed..3e4fc02b2d16c3 100644
--- a/api/SpeechSynthesis.json
+++ b/api/SpeechSynthesis.json
@@ -40,8 +40,9 @@
           },
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/487255"
-          }
+            "impl_url": "https://crbug.com/40417848"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -89,7 +90,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +140,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -160,7 +163,7 @@
             },
             "chrome_android": {
               "version_added": "33",
-              "notes": "In Android, <code>pause()</code> ends the current utterance. <code>pause()</code> behaves the same as <code>cancel()</code>."
+              "notes": "In Android, `pause()` ends the current utterance. `pause()` behaves the same as `cancel()`."
             },
             "edge": {
               "version_added": "14"
@@ -170,7 +173,7 @@
             },
             "firefox_android": {
               "version_added": "62",
-              "notes": "In Android, <code>pause()</code> ends the current utterance. <code>pause()</code> behaves the same as <code>cancel()</code>."
+              "notes": "In Android, `pause()` ends the current utterance. `pause()` behaves the same as `cancel()`."
             },
             "ie": {
               "version_added": false
@@ -188,11 +191,12 @@
             "safari_ios": "mirror",
             "samsunginternet_android": {
               "version_added": "3.0",
-              "notes": "In Android, <code>pause()</code> ends the current utterance. <code>pause()</code> behaves the same as <code>cancel()</code>."
+              "notes": "In Android, `pause()` ends the current utterance. `pause()` behaves the same as `cancel()`."
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,7 +245,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -290,7 +295,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,7 +345,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -388,7 +395,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -437,7 +445,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -448,12 +457,15 @@
       },
       "voiceschanged_event": {
         "__compat": {
-          "description": "<code>voiceschanged</code> event",
+          "description": "`voiceschanged` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/voiceschanged_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechsynthesis-voiceschanged",
             "https://wicg.github.io/speech-api/#dom-speechsynthesis-onvoiceschanged"
           ],
+          "tags": [
+            "web-features:speech-synthesis"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -487,7 +499,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechSynthesisErrorEvent.json b/api/SpeechSynthesisErrorEvent.json
index e693ddae1f2ab7..9b74d3241d6119 100644
--- a/api/SpeechSynthesisErrorEvent.json
+++ b/api/SpeechSynthesisErrorEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisErrorEvent",
         "spec_url": "https://wicg.github.io/speech-api/#speechsynthesiserrorevent",
+        "tags": [
+          "web-features:speech-synthesis"
+        ],
         "support": {
           "chrome": {
             "version_added": "33"
@@ -37,8 +40,9 @@
           },
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/487255"
-          }
+            "impl_url": "https://crbug.com/40417848"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,9 +52,12 @@
       },
       "SpeechSynthesisErrorEvent": {
         "__compat": {
-          "description": "<code>SpeechSynthesisErrorEvent()</code> constructor",
+          "description": "`SpeechSynthesisErrorEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisErrorEvent/SpeechSynthesisErrorEvent",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechsynthesiserrorevent-speechsynthesiserrorevent",
+          "tags": [
+            "web-features:speech-synthesis"
+          ],
           "support": {
             "chrome": {
               "version_added": "71"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisErrorEvent/error",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechsynthesiserrorevent-error",
+          "tags": [
+            "web-features:speech-synthesis"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -124,7 +135,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechSynthesisEvent.json b/api/SpeechSynthesisEvent.json
index 3caa8e31e2ec95..420fb320be320f 100644
--- a/api/SpeechSynthesisEvent.json
+++ b/api/SpeechSynthesisEvent.json
@@ -40,8 +40,9 @@
           },
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/487255"
-          }
+            "impl_url": "https://crbug.com/40417848"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -51,9 +52,12 @@
       },
       "SpeechSynthesisEvent": {
         "__compat": {
-          "description": "<code>SpeechSynthesisEvent()</code> constructor",
+          "description": "`SpeechSynthesisEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisEvent/SpeechSynthesisEvent",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechsynthesisevent-speechsynthesisevent",
+          "tags": [
+            "web-features:speech-synthesis"
+          ],
           "support": {
             "chrome": {
               "version_added": "71"
@@ -83,7 +87,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,7 +137,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -145,6 +151,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisEvent/charLength",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechsynthesisevent-charlength",
+          "tags": [
+            "web-features:speech-synthesis"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -174,7 +183,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,7 +233,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,7 +244,7 @@
         },
         "milliseconds": {
           "__compat": {
-            "description": "<code>elapsedTime</code> in milliseconds",
+            "description": "`elapsedTime` in milliseconds",
             "support": {
               "chrome": {
                 "version_added": "33"
@@ -271,7 +282,8 @@
               },
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -321,7 +333,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -370,7 +383,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechSynthesisUtterance.json b/api/SpeechSynthesisUtterance.json
index 50577763fe7bab..644ba313838a0f 100644
--- a/api/SpeechSynthesisUtterance.json
+++ b/api/SpeechSynthesisUtterance.json
@@ -40,8 +40,9 @@
           },
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/487255"
-          }
+            "impl_url": "https://crbug.com/40417848"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -51,7 +52,7 @@
       },
       "SpeechSynthesisUtterance": {
         "__compat": {
-          "description": "<code>SpeechSynthesisUtterance()</code> constructor",
+          "description": "`SpeechSynthesisUtterance()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/SpeechSynthesisUtterance",
           "spec_url": "https://wicg.github.io/speech-api/#dom-speechsynthesisutterance-speechsynthesisutterance",
           "tags": [
@@ -90,7 +91,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,17 +103,20 @@
       },
       "boundary_event": {
         "__compat": {
-          "description": "<code>boundary</code> event",
+          "description": "`boundary` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/boundary_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechsynthesisutterance-boundary",
             "https://wicg.github.io/speech-api/#dom-speechsynthesisutterance-onboundary"
           ],
+          "tags": [
+            "web-features:speech-synthesis"
+          ],
           "support": {
             "chrome": {
               "version_added": "33",
               "partial_implementation": true,
-              "notes": "The <code>boundary</code> event does not fire as expected. See <a href='https://crbug.com/1122143'>bug 1122143</a>."
+              "notes": "The `boundary` event does not fire as expected. See [bug 40715888](https://crbug.com/40715888)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -142,7 +147,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -153,7 +159,7 @@
       },
       "end_event": {
         "__compat": {
-          "description": "<code>end</code> event",
+          "description": "`end` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/end_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechsynthesisutterance-end",
@@ -195,7 +201,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +213,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/error_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechsynthesisutterance-error",
@@ -248,7 +255,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -297,7 +305,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -308,7 +317,7 @@
       },
       "mark_event": {
         "__compat": {
-          "description": "<code>mark</code> event",
+          "description": "`mark` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/mark_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechsynthesisutterance-mark",
@@ -350,7 +359,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -361,7 +371,7 @@
       },
       "pause_event": {
         "__compat": {
-          "description": "<code>pause</code> event",
+          "description": "`pause` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/pause_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechsynthesisutterance-pause",
@@ -403,7 +413,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -452,7 +463,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -501,7 +513,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -512,7 +525,7 @@
       },
       "resume_event": {
         "__compat": {
-          "description": "<code>resume</code> event",
+          "description": "`resume` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/resume_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechsynthesisutterance-resume",
@@ -554,7 +567,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -565,7 +579,7 @@
       },
       "start_event": {
         "__compat": {
-          "description": "<code>start</code> event",
+          "description": "`start` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/start_event",
           "spec_url": [
             "https://wicg.github.io/speech-api/#eventdef-speechsynthesisutterance-start",
@@ -607,7 +621,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -656,7 +671,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -705,7 +721,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -754,7 +771,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SpeechSynthesisVoice.json b/api/SpeechSynthesisVoice.json
index 8fbcf339e7f365..f96b349cdb607e 100644
--- a/api/SpeechSynthesisVoice.json
+++ b/api/SpeechSynthesisVoice.json
@@ -17,7 +17,7 @@
           },
           "firefox": {
             "version_added": "49",
-            "notes": "In Firefox, speech synthesis voices do not start loading until after the first call to <code>window.speechSynthesis.getVoices()</code>. A way to mitigate this issue is to call the method at the beginning of page load, then wait a few seconds before calling the method again. Voices will remain loaded until all tabs that have called this method have been closed."
+            "notes": "In Firefox, speech synthesis voices do not start loading until after the first call to `window.speechSynthesis.getVoices()`. A way to mitigate this issue is to call the method at the beginning of page load, then wait a few seconds before calling the method again. Voices will remain loaded until all tabs that have called this method have been closed."
           },
           "firefox_android": {
             "version_added": "62"
@@ -41,8 +41,9 @@
           },
           "webview_android": {
             "version_added": false,
-            "impl_url": "https://crbug.com/487255"
-          }
+            "impl_url": "https://crbug.com/40417848"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -90,7 +91,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +141,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -188,7 +191,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,7 +241,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,7 +291,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StaticRange.json b/api/StaticRange.json
index af6c95c46b534d..e6abc15dfb3db9 100644
--- a/api/StaticRange.json
+++ b/api/StaticRange.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/StaticRange",
         "spec_url": "https://dom.spec.whatwg.org/#interface-staticrange",
+        "tags": [
+          "web-features:selection-api"
+        ],
         "support": {
           "chrome": {
             "version_added": "60"
@@ -14,7 +17,7 @@
           },
           "firefox": {
             "version_added": "69",
-            "notes": "In Firefox, <code>StaticRange</code> can currently only be used by browser-internal code or code with enhanced permissions; it is not yet exposed to the web."
+            "notes": "In Firefox, `StaticRange` can currently only be used by browser-internal code or code with enhanced permissions; it is not yet exposed to the web."
           },
           "firefox_android": {
             "version_added": "79"
@@ -30,7 +33,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,9 +44,12 @@
       },
       "StaticRange": {
         "__compat": {
-          "description": "<code>StaticRange()</code> constructor",
+          "description": "`StaticRange()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StaticRange/StaticRange",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-staticrange-staticrange①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StaticRange/collapsed",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-collapsed①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -100,7 +111,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,6 +125,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StaticRange/endContainer",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-endcontainer①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -136,7 +151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -149,6 +165,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StaticRange/endOffset",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-endoffset①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -172,7 +191,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -185,6 +205,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StaticRange/startContainer",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-startcontainer①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -208,7 +231,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -221,6 +245,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StaticRange/startOffset",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-range-startoffset①",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -244,7 +271,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StereoPannerNode.json b/api/StereoPannerNode.json
index 43b32259278adb..00706244395b75 100644
--- a/api/StereoPannerNode.json
+++ b/api/StereoPannerNode.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,7 @@
       },
       "StereoPannerNode": {
         "__compat": {
-          "description": "<code>StereoPannerNode()</code> constructor",
+          "description": "`StereoPannerNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StereoPannerNode/StereoPannerNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-stereopannernode-stereopannernode",
           "tags": [
@@ -67,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,7 +108,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Storage.json b/api/Storage.json
index 0d4653181e1d7d..da42915b246c52 100644
--- a/api/Storage.json
+++ b/api/Storage.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Storage",
         "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#storage",
+        "tags": [
+          "web-features:localstorage"
+        ],
         "support": {
           "chrome": {
             "version_added": "4"
@@ -38,7 +41,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -50,6 +54,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Storage/clear",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storage-clear-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -84,7 +91,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -97,6 +105,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Storage/getItem",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storage-getitem-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -131,7 +142,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -144,6 +156,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Storage/key",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storage-key-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -178,7 +193,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -191,6 +207,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Storage/length",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storage-length-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -225,7 +244,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -238,6 +258,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Storage/removeItem",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storage-removeitem-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -272,7 +295,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -285,6 +309,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Storage/setItem",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storage-setitem-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -319,7 +346,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StorageAccessHandle.json b/api/StorageAccessHandle.json
index b54e395630c947..7bdbf23cafa443 100644
--- a/api/StorageAccessHandle.json
+++ b/api/StorageAccessHandle.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle",
         "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#storageaccesshandle",
+        "tags": [
+          "web-features:non-cookie-storage-access"
+        ],
         "support": {
           "chrome": {
             "version_added": "125"
@@ -29,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +45,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/BroadcastChannel",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-broadcastchannel",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -66,7 +73,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,6 +87,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/SharedWorker",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-sharedworker",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -104,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,6 +129,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/caches",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-caches",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -142,7 +157,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,6 +171,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/createObjectURL",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-createobjecturl",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -180,7 +199,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -193,6 +213,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/estimate",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-estimate",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -218,7 +241,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -231,6 +255,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/getDirectory",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-getdirectory",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -256,7 +283,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -269,6 +297,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/indexedDB",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-indexeddb",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -294,7 +325,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -307,6 +339,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/localStorage",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-localstorage",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -332,7 +367,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -345,6 +381,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/locks",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-locks",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -370,7 +409,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -383,6 +423,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/revokeObjectURL",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-revokeobjecturl",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -408,7 +451,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -421,6 +465,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageAccessHandle/sessionStorage",
           "spec_url": "https://privacycg.github.io/saa-non-cookie-storage/#ref-for-dom-storageaccesshandle-sessionstorage",
+          "tags": [
+            "web-features:non-cookie-storage-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -446,7 +493,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StorageBucket.json b/api/StorageBucket.json
index c39550fd34e50b..7cb82e1f7d0a50 100644
--- a/api/StorageBucket.json
+++ b/api/StorageBucket.json
@@ -13,7 +13,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1594740"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -27,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -62,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -98,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -134,7 +138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -170,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -206,7 +212,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -242,7 +249,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -278,7 +286,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -314,7 +323,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -350,7 +360,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/StorageBucketManager.json b/api/StorageBucketManager.json
index 81e854388ac111..cb459ef9b0fb8e 100644
--- a/api/StorageBucketManager.json
+++ b/api/StorageBucketManager.json
@@ -13,7 +13,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1594740"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -27,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -62,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -98,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -134,7 +138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/StorageEvent.json b/api/StorageEvent.json
index 9e2cd16d997b82..1e0f92145c2ff2 100644
--- a/api/StorageEvent.json
+++ b/api/StorageEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageEvent",
         "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#the-storageevent-interface",
+        "tags": [
+          "web-features:localstorage"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -38,7 +41,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,7 +52,7 @@
       },
       "StorageEvent": {
         "__compat": {
-          "description": "<code>StorageEvent()</code> constructor",
+          "description": "`StorageEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageEvent/StorageEvent",
           "support": {
             "chrome": {
@@ -76,7 +80,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,7 +128,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,6 +142,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageEvent/key",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storageevent-key-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -170,7 +179,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -183,6 +193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageEvent/newValue",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storageevent-newvalue-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -217,7 +230,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -230,6 +244,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageEvent/oldValue",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storageevent-oldvalue-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -264,7 +281,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -277,6 +295,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageEvent/storageArea",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storageevent-storagearea-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -311,7 +332,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -324,6 +346,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageEvent/url",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-storageevent-url-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -358,7 +383,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StorageManager.json b/api/StorageManager.json
index 9205655f7ba812..16ae6f0ea813b5 100644
--- a/api/StorageManager.json
+++ b/api/StorageManager.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageManager",
         "spec_url": "https://storage.spec.whatwg.org/#storagemanager",
+        "tags": [
+          "web-features:storage-manager"
+        ],
         "support": {
           "chrome": {
             "version_added": "55"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageManager/estimate",
           "spec_url": "https://storage.spec.whatwg.org/#ref-for-dom-storagemanager-estimate",
+          "tags": [
+            "web-features:storage-manager"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,7 +97,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,7 +138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,6 +152,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageManager/persist",
           "spec_url": "https://storage.spec.whatwg.org/#ref-for-dom-storagemanager-persist",
+          "tags": [
+            "web-features:storage-manager"
+          ],
           "support": {
             "chrome": {
               "version_added": "55"
@@ -163,7 +176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,6 +190,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StorageManager/persisted",
           "spec_url": "https://storage.spec.whatwg.org/#dom-storagemanager-persisted",
+          "tags": [
+            "web-features:storage-manager"
+          ],
           "support": {
             "chrome": {
               "version_added": "55"
@@ -197,7 +214,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StyleMedia.json b/api/StyleMedia.json
index 33090b7a59e089..fe2e80a3dd5e2e 100644
--- a/api/StyleMedia.json
+++ b/api/StyleMedia.json
@@ -28,7 +28,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StylePropertyMap.json b/api/StylePropertyMap.json
index 7f7d749965369a..d3ae42e291ecb5 100644
--- a/api/StylePropertyMap.json
+++ b/api/StylePropertyMap.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMap",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#the-stylepropertymap",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,6 +42,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMap/append",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-stylepropertymap-append",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,6 +81,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMap/clear",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-stylepropertymap-clear",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -108,6 +120,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMap/delete",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-stylepropertymap-delete",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -130,7 +145,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -143,6 +159,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMap/set",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-stylepropertymap-set",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -165,7 +184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StylePropertyMapReadOnly.json b/api/StylePropertyMapReadOnly.json
index a606082a8ef9c0..790039d845efaa 100644
--- a/api/StylePropertyMapReadOnly.json
+++ b/api/StylePropertyMapReadOnly.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMapReadOnly",
         "spec_url": "https://drafts.css-houdini.org/css-typed-om/#the-stylepropertymap",
+        "tags": [
+          "web-features:css-typed-om"
+        ],
         "support": {
           "chrome": {
             "version_added": "66"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
       "entries": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMapReadOnly/entries",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,6 +79,9 @@
       "forEach": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMapReadOnly/forEach",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -93,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,6 +118,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMapReadOnly/get",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-stylepropertymapreadonly-get",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -128,7 +143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -141,6 +157,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMapReadOnly/getAll",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-stylepropertymapreadonly-getall",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -163,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,6 +196,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMapReadOnly/has",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-stylepropertymapreadonly-has",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -198,7 +221,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -210,6 +234,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMapReadOnly/keys",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -232,7 +259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -245,6 +273,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMapReadOnly/size",
           "spec_url": "https://drafts.css-houdini.org/css-typed-om/#dom-stylepropertymapreadonly-size",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -267,7 +298,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -279,6 +311,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StylePropertyMapReadOnly/values",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -301,7 +336,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -313,6 +349,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:css-typed-om"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -335,7 +374,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StyleSheet.json b/api/StyleSheet.json
index 311e112f600599..43d75051bb4a00 100644
--- a/api/StyleSheet.json
+++ b/api/StyleSheet.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheet",
         "spec_url": "https://drafts.csswg.org/cssom/#the-stylesheet-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheet/disabled",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-stylesheet-disabled",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheet/href",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-stylesheet-href",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheet/media",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-stylesheet-media",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -150,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +179,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheet/ownerNode",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-stylesheet-ownernode",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -190,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -203,6 +223,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheet/parentStyleSheet",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-stylesheet-parentstylesheet",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -230,7 +253,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -243,6 +267,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheet/title",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-stylesheet-title",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -270,7 +297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -283,6 +311,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheet/type",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-stylesheet-type",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -310,7 +341,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/StyleSheetList.json b/api/StyleSheetList.json
index fccdc43a521140..45c36f5d8e92be 100644
--- a/api/StyleSheetList.json
+++ b/api/StyleSheetList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheetList",
         "spec_url": "https://drafts.csswg.org/cssom/#the-stylesheetlist-interface",
+        "tags": [
+          "web-features:css-object-model"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,6 +47,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheetList/item",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-stylesheetlist-item",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/StyleSheetList/length",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-stylesheetlist-length",
+          "tags": [
+            "web-features:css-object-model"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -110,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SubmitEvent.json b/api/SubmitEvent.json
index c50dde7a5e148e..e378bdcaac410b 100644
--- a/api/SubmitEvent.json
+++ b/api/SubmitEvent.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -35,7 +36,7 @@
       },
       "SubmitEvent": {
         "__compat": {
-          "description": "<code>SubmitEvent()</code> constructor",
+          "description": "`SubmitEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubmitEvent/SubmitEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#submitevent",
           "support": {
@@ -59,7 +60,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -95,12 +97,13 @@
               {
                 "version_added": "15",
                 "partial_implementation": true,
-                "notes": "Property is not set for <code>&lt;button&gt;</code> elements. See <a href='https://webkit.org/b/229660'>bug 229660</a>."
+                "notes": "Property is not set for `&lt;button&gt;` elements. See [bug 229660](https://webkit.org/b/229660)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SubtleCrypto.json b/api/SubtleCrypto.json
index 03741f90c53d96..fd9840523db8b7 100644
--- a/api/SubtleCrypto.json
+++ b/api/SubtleCrypto.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto",
         "spec_url": "https://w3c.github.io/webcrypto/#subtlecrypto-interface",
+        "tags": [
+          "web-features:web-cryptography"
+        ],
         "support": {
           "chrome": {
             "version_added": "37"
@@ -22,9 +25,16 @@
           "ie": {
             "version_added": "11"
           },
-          "nodejs": {
-            "version_added": "15.0.0"
-          },
+          "nodejs": [
+            {
+              "version_added": "19.0.0"
+            },
+            {
+              "version_added": "15.0.0",
+              "partial_implementation": true,
+              "notes": "Available as a part of the `crypto` module."
+            }
+          ],
           "oculus": "mirror",
           "opera": "mirror",
           "opera_android": "mirror",
@@ -40,7 +50,8 @@
           ],
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -51,6 +62,9 @@
       "secure_context_required": {
         "__compat": {
           "description": "Secure context required",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -78,7 +92,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -90,6 +105,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -117,7 +135,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,6 +149,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/decrypt",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-decrypt",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -170,7 +192,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>CryptoOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `CryptoOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0"
@@ -183,7 +205,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -196,6 +219,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveBits",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-deriveBits",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -248,7 +274,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -258,9 +285,12 @@
         },
         "x25519": {
           "__compat": {
-            "description": "<code>X25519</code> algorithm",
+            "description": "`X25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveBits",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#x25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -286,7 +316,7 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -296,7 +326,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -310,6 +341,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveKey",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-deriveKey",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -354,7 +388,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -364,9 +399,12 @@
         },
         "derivedKeyAlgorithm_option_aes": {
           "__compat": {
-            "description": "<code>AES</code> as <code>derivedKeyAlgorithm</code> option value",
+            "description": "`AES` as `derivedKeyAlgorithm` option value",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveKey",
             "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-deriveKey",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -390,11 +428,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "11"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -405,9 +444,12 @@
         },
         "derivedKeyAlgorithm_option_hkdf": {
           "__compat": {
-            "description": "<code>HKDF</code> as <code>derivedKeyAlgorithm</code> option value",
+            "description": "`HKDF` as `derivedKeyAlgorithm` option value",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveKey",
             "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-deriveKey",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -431,11 +473,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "11"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -446,9 +489,12 @@
         },
         "derivedKeyAlgorithm_option_hmac": {
           "__compat": {
-            "description": "<code>HMAC</code> as <code>derivedKeyAlgorithm</code> option value",
+            "description": "`HMAC` as `derivedKeyAlgorithm` option value",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveKey",
             "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-deriveKey",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -472,11 +518,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "11"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -487,9 +534,12 @@
         },
         "derivedKeyAlgorithm_option_pbkdf2": {
           "__compat": {
-            "description": "<code>PBKDF2</code> as <code>derivedKeyAlgorithm</code> option value",
+            "description": "`PBKDF2` as `derivedKeyAlgorithm` option value",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveKey",
             "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-deriveKey",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -513,11 +563,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "11"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -528,9 +579,12 @@
         },
         "x25519": {
           "__compat": {
-            "description": "<code>X25519</code> algorithm",
+            "description": "`X25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveKey",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#x25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -556,7 +610,7 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -566,7 +620,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -580,6 +635,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/digest",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-digest",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -606,7 +664,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>CryptoOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `CryptoOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0"
@@ -619,7 +677,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -632,6 +691,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/encrypt",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-encrypt",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -672,7 +734,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>CryptoOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `CryptoOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0"
@@ -685,7 +747,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -698,6 +761,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/exportKey",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-exportKey",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -740,7 +806,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>KeyOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `KeyOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0",
@@ -758,7 +824,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -768,9 +835,12 @@
         },
         "ed25519": {
           "__compat": {
-            "description": "<code>Ed25519</code> algorithm",
+            "description": "`Ed25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/exportKey",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#ed25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -796,7 +866,7 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -806,7 +876,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -817,9 +888,12 @@
         },
         "x25519": {
           "__compat": {
-            "description": "<code>X25519</code> algorithm",
+            "description": "`X25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/exportKey",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#x25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -845,7 +919,7 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -855,7 +929,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -869,6 +944,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/generateKey",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-generateKey",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -908,7 +986,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>KeyOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `KeyOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0",
@@ -925,7 +1003,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -935,9 +1014,12 @@
         },
         "ed25519": {
           "__compat": {
-            "description": "<code>Ed25519</code> algorithm",
+            "description": "`Ed25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/generateKey",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#ed25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -964,7 +1046,7 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -974,7 +1056,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -985,9 +1068,12 @@
         },
         "x25519": {
           "__compat": {
-            "description": "<code>X25519</code> algorithm",
+            "description": "`X25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/generateKey",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#x25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -1013,7 +1099,7 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -1023,7 +1109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1037,6 +1124,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/importKey",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-importKey",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -1082,7 +1172,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>KeyOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `KeyOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0",
@@ -1100,7 +1190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1110,9 +1201,12 @@
         },
         "ed25519": {
           "__compat": {
-            "description": "<code>Ed25519</code> algorithm",
+            "description": "`Ed25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/importKey",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#ed25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -1138,7 +1232,7 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -1148,7 +1242,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1159,9 +1254,12 @@
         },
         "x25519": {
           "__compat": {
-            "description": "<code>X25519</code> algorithm",
+            "description": "`X25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/importKey",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#x25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -1187,7 +1285,7 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -1197,7 +1295,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1211,6 +1310,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/sign",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-sign",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -1237,7 +1339,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>CryptoOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `CryptoOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0",
@@ -1251,7 +1353,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1261,9 +1364,12 @@
         },
         "ed25519": {
           "__compat": {
-            "description": "<code>Ed25519</code> algorithm",
+            "description": "`Ed25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/sign",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#ed25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -1289,17 +1395,19 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "17"
+                "version_added": "17",
+                "notes": "Generates randomized signatures as per [draft-irtf-cfrg-det-sigs-with-noise](https://datatracker.ietf.org/doc/draft-irtf-cfrg-det-sigs-with-noise/), instead of deterministic signatures as per [RFC 8032](https://www.rfc-editor.org/rfc/rfc8032)."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1313,6 +1421,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/unwrapKey",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-unwrapKey",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -1339,7 +1450,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>KeyOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `KeyOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0",
@@ -1356,7 +1467,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1369,6 +1481,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/verify",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-verify",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -1403,7 +1518,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>CryptoOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `CryptoOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0",
@@ -1417,7 +1532,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1427,9 +1543,12 @@
         },
         "ed25519": {
           "__compat": {
-            "description": "<code>Ed25519</code> algorithm",
+            "description": "`Ed25519` algorithm",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/verify",
             "spec_url": "https://wicg.github.io/webcrypto-secure-curves/#ed25519",
+            "tags": [
+              "web-features:web-cryptography"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113",
@@ -1455,7 +1574,7 @@
               },
               "nodejs": {
                 "version_added": "16.17.0",
-                "notes": "Marked as <a href='https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs'>'Stability 1' - Experimental</a>."
+                "notes": "Marked as ['Stability 1' - Experimental](https://nodejs.org/dist/latest-v16.x/docs/api/webcrypto.html#ed25519ed448x25519x448-key-pairs)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -1465,7 +1584,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1479,6 +1599,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SubtleCrypto/wrapKey",
           "spec_url": "https://w3c.github.io/webcrypto/#SubtleCrypto-method-wrapKey",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -1505,7 +1628,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Returns <code>KeyOperation</code> instead of <code>Promise</code>"
+              "notes": "Returns `KeyOperation` instead of `Promise`"
             },
             "nodejs": {
               "version_added": "15.0.0"
@@ -1518,7 +1641,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SyncEvent.json b/api/SyncEvent.json
index 8d21b13a5e2725..61ef25d47b0d1e 100644
--- a/api/SyncEvent.json
+++ b/api/SyncEvent.json
@@ -24,11 +24,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/182565"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +40,7 @@
       },
       "SyncEvent": {
         "__compat": {
-          "description": "<code>SyncEvent()</code> constructor",
+          "description": "`SyncEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/SyncEvent/SyncEvent",
           "spec_url": "https://wicg.github.io/background-sync/spec/#dom-syncevent-syncevent",
           "tags": [
@@ -65,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/SyncManager.json b/api/SyncManager.json
index 350d8be1ecdb07..3fd7eb89e29fc1 100644
--- a/api/SyncManager.json
+++ b/api/SyncManager.json
@@ -24,11 +24,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/182565"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +41,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:background-sync"
+          ],
           "support": {
             "chrome": [
               {
@@ -47,7 +52,7 @@
               {
                 "version_added": "49",
                 "partial_implementation": true,
-                "notes": "Only available in the <code>Window</code> and <code>ServiceWorker</code> global scopes."
+                "notes": "Only available in the `Window` and `ServiceWorker` global scopes."
               }
             ],
             "chrome_android": "mirror",
@@ -73,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +116,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TaskAttributionTiming.json b/api/TaskAttributionTiming.json
index e6a3e0bafc6d7e..9369d0bade2f19 100644
--- a/api/TaskAttributionTiming.json
+++ b/api/TaskAttributionTiming.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskAttributionTiming",
         "spec_url": "https://w3c.github.io/longtasks/#sec-TaskAttributionTiming",
+        "tags": [
+          "web-features:longtasks"
+        ],
         "support": {
           "chrome": {
             "version_added": "58"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,6 +42,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskAttributionTiming/containerId",
           "spec_url": "https://w3c.github.io/longtasks/#dom-taskattributiontiming-containerid",
+          "tags": [
+            "web-features:longtasks"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -72,6 +80,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskAttributionTiming/containerName",
           "spec_url": "https://w3c.github.io/longtasks/#dom-taskattributiontiming-containername",
+          "tags": [
+            "web-features:longtasks"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -93,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,6 +118,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskAttributionTiming/containerSrc",
           "spec_url": "https://w3c.github.io/longtasks/#dom-taskattributiontiming-containersrc",
+          "tags": [
+            "web-features:longtasks"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -127,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -140,6 +156,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskAttributionTiming/containerType",
           "spec_url": "https://w3c.github.io/longtasks/#dom-taskattributiontiming-containertype",
+          "tags": [
+            "web-features:longtasks"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -161,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -174,6 +194,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskAttributionTiming/toJSON",
           "spec_url": "https://w3c.github.io/longtasks/#dom-taskattributiontiming-tojson",
+          "tags": [
+            "web-features:longtasks"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -195,7 +218,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/TaskController.json b/api/TaskController.json
index 2698e876bc0ee1..d8013b8db80f8d 100644
--- a/api/TaskController.json
+++ b/api/TaskController.json
@@ -35,7 +35,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,7 +46,7 @@
       },
       "TaskController": {
         "__compat": {
-          "description": "<code>TaskController()</code> constructor",
+          "description": "`TaskController()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskController/TaskController",
           "spec_url": "https://wicg.github.io/scheduling-apis/#dom-taskcontroller-taskcontroller",
           "tags": [
@@ -79,7 +80,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,7 +125,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TaskPriorityChangeEvent.json b/api/TaskPriorityChangeEvent.json
index 4e6e633cf2b51f..3b3d1fe86d01c5 100644
--- a/api/TaskPriorityChangeEvent.json
+++ b/api/TaskPriorityChangeEvent.json
@@ -35,7 +35,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,7 +46,7 @@
       },
       "TaskPriorityChangeEvent": {
         "__compat": {
-          "description": "<code>TaskPriorityChangeEvent()</code> constructor",
+          "description": "`TaskPriorityChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskPriorityChangeEvent/TaskPriorityChangeEvent",
           "spec_url": "https://wicg.github.io/scheduling-apis/#dom-taskprioritychangeevent-taskprioritychangeevent",
           "tags": [
@@ -79,7 +80,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -123,7 +125,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TaskSignal.json b/api/TaskSignal.json
index d81c77f8d57099..8ec60479530a37 100644
--- a/api/TaskSignal.json
+++ b/api/TaskSignal.json
@@ -35,7 +35,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,9 +46,12 @@
       },
       "any_static": {
         "__compat": {
-          "description": "<code>any()</code> static method",
+          "description": "`any()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskSignal/any_static",
           "spec_url": "https://wicg.github.io/scheduling-apis/#dom-tasksignal-any",
+          "tags": [
+            "web-features:scheduler"
+          ],
           "support": {
             "chrome": {
               "version_added": "116"
@@ -69,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -113,7 +118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -124,12 +130,15 @@
       },
       "prioritychange_event": {
         "__compat": {
-          "description": "<code>prioritychange</code> event",
+          "description": "`prioritychange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TaskSignal/prioritychange_event",
           "spec_url": [
             "https://wicg.github.io/scheduling-apis/#ref-for-eventdef-tasksignal-prioritychange",
             "https://wicg.github.io/scheduling-apis/#dom-tasksignal-onprioritychange"
           ],
+          "tags": [
+            "web-features:scheduler"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -158,7 +167,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Text.json b/api/Text.json
index 84ea299fa4c048..54ae39a8baefac 100644
--- a/api/Text.json
+++ b/api/Text.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Text",
         "spec_url": "https://dom.spec.whatwg.org/#interface-text",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,9 +47,12 @@
       },
       "Text": {
         "__compat": {
-          "description": "<code>Text()</code> constructor",
+          "description": "`Text()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Text/Text",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-text-text①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -69,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -106,7 +114,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -146,7 +155,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -159,10 +169,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Text/splitText",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-text-splittext①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Before Chrome 30, the <code>offset</code> parameter was optional."
+              "notes": "Before Chrome 30, the `offset` parameter was optional."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -178,22 +191,23 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "≤12.1",
-              "notes": "Before Opera 17, the <code>offset</code> parameter was optional."
+              "notes": "Before Opera 17, the `offset` parameter was optional."
             },
             "opera_android": {
               "version_added": "≤12.1",
-              "notes": "Before Opera 17, the <code>offset</code> parameter was optional."
+              "notes": "Before Opera 17, the `offset` parameter was optional."
             },
             "safari": {
               "version_added": "1",
-              "notes": "The <code>offset</code> parameter is optional."
+              "notes": "The `offset` parameter is optional."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1",
-              "notes": "Before version 4.4, the <code>offset</code> parameter was optional."
-            }
+              "notes": "Before version 4.4, the `offset` parameter was optional."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,6 +220,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Text/wholeText",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-text-wholetext①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -233,7 +250,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextDecoder.json b/api/TextDecoder.json
index fe6d6a4629d9aa..867053a9d30674 100644
--- a/api/TextDecoder.json
+++ b/api/TextDecoder.json
@@ -33,9 +33,8 @@
             },
             {
               "version_added": "8.3.0",
-              "version_removed": "11.0.0",
               "partial_implementation": true,
-              "notes": "Available as a part of the <code>util</code> module."
+              "notes": "Available as a part of the `util` module."
             }
           ],
           "oculus": "mirror",
@@ -46,7 +45,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,7 +56,7 @@
       },
       "TextDecoder": {
         "__compat": {
-          "description": "<code>TextDecoder()</code> constructor",
+          "description": "`TextDecoder()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextDecoder/TextDecoder",
           "spec_url": "https://encoding.spec.whatwg.org/#ref-for-dom-textdecoder①",
           "support": {
@@ -82,17 +82,9 @@
             "ie": {
               "version_added": false
             },
-            "nodejs": [
-              {
-                "version_added": "11.0.0"
-              },
-              {
-                "version_added": "8.3.0",
-                "version_removed": "11.0.0",
-                "partial_implementation": true,
-                "notes": "Available as a part of the <code>util</code> module."
-              }
-            ],
+            "nodejs": {
+              "version_added": "8.3.0"
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -101,7 +93,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,7 +123,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -140,7 +133,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -160,7 +154,7 @@
             "chrome_android": "mirror",
             "deno": {
               "version_added": "1.0",
-              "notes": "Before Deno 1.11, passing <code>option.stream</code> is not supported and results in an error being thrown."
+              "notes": "Before Deno 1.11, passing `option.stream` is not supported and results in an error being thrown."
             },
             "edge": "mirror",
             "firefox": [
@@ -177,17 +171,9 @@
             "ie": {
               "version_added": false
             },
-            "nodejs": [
-              {
-                "version_added": "11.0.0"
-              },
-              {
-                "version_added": "8.3.0",
-                "version_removed": "11.0.0",
-                "partial_implementation": true,
-                "notes": "Available as a part of the <code>util</code> module."
-              }
-            ],
+            "nodejs": {
+              "version_added": "8.3.0"
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -196,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -243,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -283,7 +271,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -323,7 +312,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextDecoderStream.json b/api/TextDecoderStream.json
index 46e421ed6e1bbe..4c550783f24c64 100644
--- a/api/TextDecoderStream.json
+++ b/api/TextDecoderStream.json
@@ -26,11 +26,8 @@
             },
             {
               "version_added": "16.6.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -41,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -51,7 +49,7 @@
       },
       "TextDecoderStream": {
         "__compat": {
-          "description": "<code>TextDecoderStream()</code> constructor",
+          "description": "`TextDecoderStream()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextDecoderStream/TextDecoderStream",
           "spec_url": "https://encoding.spec.whatwg.org/#ref-for-dom-textdecoderstream①",
           "support": {
@@ -81,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -121,7 +120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,7 +202,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,7 +243,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -281,7 +284,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextEncoder.json b/api/TextEncoder.json
index 3abe8ecd357abb..b76a357f6fd650 100644
--- a/api/TextEncoder.json
+++ b/api/TextEncoder.json
@@ -26,9 +26,8 @@
             },
             {
               "version_added": "8.3.0",
-              "version_removed": "11.0.0",
               "partial_implementation": true,
-              "notes": "Available as a part of the <code>util</code> module."
+              "notes": "Available as a part of the `util` module."
             }
           ],
           "oculus": "mirror",
@@ -39,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -49,7 +49,7 @@
       },
       "TextEncoder": {
         "__compat": {
-          "description": "<code>TextEncoder()</code> constructor",
+          "description": "`TextEncoder()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextEncoder/TextEncoder",
           "spec_url": "https://encoding.spec.whatwg.org/#ref-for-dom-textencoder①",
           "support": {
@@ -68,17 +68,9 @@
             "ie": {
               "version_added": false
             },
-            "nodejs": [
-              {
-                "version_added": "11.0.0"
-              },
-              {
-                "version_added": "8.3.0",
-                "version_removed": "11.0.0",
-                "partial_implementation": true,
-                "notes": "Available as a part of the <code>util</code> module."
-              }
-            ],
+            "nodejs": {
+              "version_added": "8.3.0"
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -87,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,7 +109,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -126,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -166,7 +160,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,7 +203,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -248,7 +244,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextEncoderStream.json b/api/TextEncoderStream.json
index 3fcbf2d642272f..c85ee994416a00 100644
--- a/api/TextEncoderStream.json
+++ b/api/TextEncoderStream.json
@@ -26,11 +26,8 @@
             },
             {
               "version_added": "16.6.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -41,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -51,7 +49,7 @@
       },
       "TextEncoderStream": {
         "__compat": {
-          "description": "<code>TextEncoderStream()</code> constructor",
+          "description": "`TextEncoderStream()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextEncoderStream/TextEncoderStream",
           "spec_url": "https://encoding.spec.whatwg.org/#ref-for-dom-textencoderstream①",
           "support": {
@@ -81,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -121,7 +120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -161,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,7 +202,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextEvent.json b/api/TextEvent.json
index e06508b35ce067..b2c4b414347a9b 100644
--- a/api/TextEvent.json
+++ b/api/TextEvent.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -98,7 +100,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextFormat.json b/api/TextFormat.json
index 46f6d1671e70f2..ad5c430322597d 100644
--- a/api/TextFormat.json
+++ b/api/TextFormat.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1904161"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/269922"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,7 +41,7 @@
       },
       "TextFormat": {
         "__compat": {
-          "description": "<code>TextFormat()</code> constructor",
+          "description": "`TextFormat()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextFormat/TextFormat",
           "spec_url": "https://w3c.github.io/edit-context/#dom-textformat-constructor",
           "tags": [
@@ -65,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -102,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -176,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -213,7 +220,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/TextFormatUpdateEvent.json b/api/TextFormatUpdateEvent.json
index 3cae34499abf0b..1f57e127498976 100644
--- a/api/TextFormatUpdateEvent.json
+++ b/api/TextFormatUpdateEvent.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1904161"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/269922"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,7 +41,7 @@
       },
       "TextFormatUpdateEvent": {
         "__compat": {
-          "description": "<code>TextFormatUpdateEvent()</code> constructor",
+          "description": "`TextFormatUpdateEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextFormatUpdateEvent/TextFormatUpdateEvent",
           "spec_url": "https://w3c.github.io/edit-context/#dom-textformatupdateevent-constructor",
           "tags": [
@@ -65,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -102,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/TextMetrics.json b/api/TextMetrics.json
index 10272e7f84a1b9..bcd12d8bf4334b 100644
--- a/api/TextMetrics.json
+++ b/api/TextMetrics.json
@@ -5,7 +5,7 @@
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics",
         "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#textmetrics",
         "tags": [
-          "web-features:canvas-text"
+          "web-features:canvas-2d"
         ],
         "support": {
           "chrome": {
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,7 +107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,7 +177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -187,7 +192,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/alphabeticBaseline",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-textmetrics-alphabeticbaseline-dev",
           "tags": [
-            "web-features:canvas-text-baselines"
+            "web-features:canvas-2d"
           ],
           "support": {
             "chrome": {
@@ -210,7 +215,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -250,7 +256,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -290,7 +297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -324,7 +332,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -358,7 +367,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -372,7 +382,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/hangingBaseline",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-textmetrics-hangingbaseline-dev",
           "tags": [
-            "web-features:canvas-text-baselines"
+            "web-features:canvas-2d"
           ],
           "support": {
             "chrome": {
@@ -395,7 +405,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -409,7 +420,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/ideographicBaseline",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-textmetrics-ideographicbaseline-dev",
           "tags": [
-            "web-features:canvas-text-baselines"
+            "web-features:canvas-2d"
           ],
           "support": {
             "chrome": {
@@ -432,7 +443,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -446,7 +458,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextMetrics/width",
           "spec_url": "https://html.spec.whatwg.org/multipage/canvas.html#dom-textmetrics-width-dev",
           "tags": [
-            "web-features:canvas-text"
+            "web-features:canvas-2d"
           ],
           "support": {
             "chrome": {
@@ -477,7 +489,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextTrack.json b/api/TextTrack.json
index 6f55b3395e9469..709d50182eeb62 100644
--- a/api/TextTrack.json
+++ b/api/TextTrack.json
@@ -39,7 +39,8 @@
             "version_added": "7"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,7 @@
             },
             "firefox": {
               "version_added": "31",
-              "notes": "Starting in Firefox 69, cues are no longer incorrectly loaded when the <code>TextTrack</code>'s <code>mode</code> is <code>disabled</code>; if that's the case, the returned list is empty."
+              "notes": "Starting in Firefox 69, cues are no longer incorrectly loaded when the `TextTrack`'s `mode` is `disabled`; if that's the case, the returned list is empty."
             },
             "firefox_android": {
               "version_added": "31"
@@ -86,7 +87,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,7 +133,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,7 +145,7 @@
       },
       "cuechange_event": {
         "__compat": {
-          "description": "<code>cuechange</code> event",
+          "description": "`cuechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/cuechange_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-cuechange",
@@ -180,7 +183,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +210,7 @@
             },
             "firefox": {
               "version_added": "31",
-              "notes": "Starting in Firefox 69, cues are no longer incorrectly loaded when the <code>TextTrack</code>'s <code>mode</code> is <code>disabled</code>; if that's the case, the returned list is empty."
+              "notes": "Starting in Firefox 69, cues are no longer incorrectly loaded when the `TextTrack`'s `mode` is `disabled`; if that's the case, the returned list is empty."
             },
             "firefox_android": {
               "version_added": "31"
@@ -228,7 +232,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -267,7 +272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,7 +292,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/754093"
+              "impl_url": "https://crbug.com/41338648"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -308,7 +314,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -353,7 +360,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -398,7 +406,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -443,7 +452,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -491,7 +501,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -536,7 +547,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -547,6 +559,7 @@
       },
       "sourceBuffer": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrack/sourceBuffer",
           "spec_url": "https://w3c.github.io/media-source/#dom-texttrack-sourcebuffer",
           "support": {
             "chrome": {
@@ -569,11 +582,13 @@
             },
             "safari_ios": {
               "version_added": "13",
+              "impl_url": "https://webkit.org/b/200147",
               "partial_implementation": true,
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextTrackCue.json b/api/TextTrackCue.json
index c0cc7e96df908f..7e871f5bb1f225 100644
--- a/api/TextTrackCue.json
+++ b/api/TextTrackCue.json
@@ -36,7 +36,8 @@
             "version_added": "7"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,7 +81,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,7 +93,7 @@
       },
       "enter_event": {
         "__compat": {
-          "description": "<code>enter</code> event",
+          "description": "`enter` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrackCue/enter_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-enter",
@@ -129,7 +131,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,7 +143,7 @@
       },
       "exit_event": {
         "__compat": {
-          "description": "<code>exit</code> event",
+          "description": "`exit` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrackCue/exit_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-exit",
@@ -178,7 +181,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,7 +227,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -268,7 +273,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -313,7 +319,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -358,7 +365,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextTrackCueList.json b/api/TextTrackCueList.json
index 61dfc1b29c0029..84cb5582c0b5cf 100644
--- a/api/TextTrackCueList.json
+++ b/api/TextTrackCueList.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -76,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextTrackList.json b/api/TextTrackList.json
index ab80d02b0a0153..ee4e7c6396a0a1 100644
--- a/api/TextTrackList.json
+++ b/api/TextTrackList.json
@@ -36,7 +36,8 @@
             "version_added": "7"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,7 +47,7 @@
       },
       "addtrack_event": {
         "__compat": {
-          "description": "<code>addtrack</code> event",
+          "description": "`addtrack` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrackList/addtrack_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-addtrack",
@@ -84,7 +85,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -95,7 +97,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrackList/change_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-change",
@@ -129,7 +131,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,7 +171,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -213,7 +217,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,8 +229,8 @@
       },
       "removetrack_event": {
         "__compat": {
-          "description": "<code>removetrack</code> event",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrackList/removeTrack_event",
+          "description": "`removetrack` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextTrackList/removetrack_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-removetrack",
             "https://html.spec.whatwg.org/multipage/media.html#handler-tracklist-onremovetrack"
@@ -274,7 +279,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TextUpdateEvent.json b/api/TextUpdateEvent.json
index 099b947829ee51..ca14880198eab7 100644
--- a/api/TextUpdateEvent.json
+++ b/api/TextUpdateEvent.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1904161"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/269922"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -38,7 +41,7 @@
       },
       "TextUpdateEvent": {
         "__compat": {
-          "description": "<code>TextUpdateEvent()</code> constructor",
+          "description": "`TextUpdateEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TextUpdateEvent/TextUpdateEvent",
           "spec_url": "https://w3c.github.io/edit-context/#dom-textupdateevent-constructor",
           "tags": [
@@ -65,7 +68,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -102,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -176,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -213,7 +220,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -250,7 +258,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/TimeEvent.json b/api/TimeEvent.json
index 9a88f562580332..ecb39a1af86868 100644
--- a/api/TimeEvent.json
+++ b/api/TimeEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/TimeEvent",
         "spec_url": "https://svgwg.org/specs/animations/#InterfaceTimeEvent",
+        "tags": [
+          "web-features:smil-svg-animations"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,6 +40,9 @@
       "detail": {
         "__compat": {
           "spec_url": "https://svgwg.org/specs/animations/#__svg__TimeEvent__detail",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -57,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,6 +77,9 @@
       "initTimeEvent": {
         "__compat": {
           "spec_url": "https://svgwg.org/specs/animations/#__svg__TimeEvent__initTimeEvent",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -90,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,6 +114,9 @@
       "view": {
         "__compat": {
           "spec_url": "https://svgwg.org/specs/animations/#__svg__TimeEvent__view",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -123,7 +138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TimeRanges.json b/api/TimeRanges.json
index 7a2e07cbc5bad3..8e416ffc115566 100644
--- a/api/TimeRanges.json
+++ b/api/TimeRanges.json
@@ -33,7 +33,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -74,7 +75,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,7 +118,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,7 +161,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ToggleEvent.json b/api/ToggleEvent.json
index 01dfb1b11f582e..88d946ceb6f6f5 100644
--- a/api/ToggleEvent.json
+++ b/api/ToggleEvent.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "ToggleEvent": {
         "__compat": {
-          "description": "<code>ToggleEvent()</code> constructor",
+          "description": "`ToggleEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ToggleEvent/ToggleEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#toggleevent",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Touch.json b/api/Touch.json
index b611f5a110a9be..b757a15790e2a7 100644
--- a/api/Touch.json
+++ b/api/Touch.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch",
         "spec_url": "https://w3c.github.io/touch-events/#touch-interface",
+        "tags": [
+          "web-features:touch-events"
+        ],
         "support": {
           "chrome": {
             "version_added": "22"
@@ -21,7 +24,7 @@
             {
               "version_added": "18",
               "version_removed": "24",
-              "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+              "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
             }
           ],
           "firefox_android": {
@@ -40,7 +43,8 @@
             "version_added": "≤3"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -50,9 +54,12 @@
       },
       "Touch": {
         "__compat": {
-          "description": "<code>Touch()</code> constructor",
+          "description": "`Touch()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/Touch",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-constructor",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "48"
@@ -80,7 +87,8 @@
               "version_added": "≤3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,6 +100,9 @@
       "altitudeAngle": {
         "__compat": {
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-altitudeangle",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -115,7 +126,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,6 +139,9 @@
       "azimuthAngle": {
         "__compat": {
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-azimuthangle",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -150,7 +165,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +179,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/clientX",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-clientx",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -180,7 +199,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -199,7 +218,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -212,6 +232,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/clientY",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-clienty",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -229,7 +252,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -248,7 +271,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,6 +285,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/force",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-force",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": [
               {
@@ -285,7 +312,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -304,7 +331,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -317,6 +345,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/identifier",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-identifier",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -334,7 +365,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -353,7 +384,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -366,6 +398,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/pageX",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-pagex",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -383,7 +418,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -402,7 +437,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -415,6 +451,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/pageY",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-pagey",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -432,7 +471,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -451,7 +490,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -464,6 +504,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/radiusX",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-radiusx",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": [
               {
@@ -488,7 +531,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -507,7 +550,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -520,6 +564,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/radiusY",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-radiusy",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": [
               {
@@ -544,7 +591,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -563,7 +610,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -576,6 +624,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/rotationAngle",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-rotationangle",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": [
               {
@@ -600,7 +651,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -619,7 +670,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -632,6 +684,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/screenX",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-screenx",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -649,7 +704,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -668,7 +723,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -681,6 +737,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/screenY",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-screeny",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -698,7 +757,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -717,7 +776,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -730,6 +790,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Touch/target",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-target",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -747,7 +810,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -766,7 +829,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -778,6 +842,9 @@
       "touchType": {
         "__compat": {
           "spec_url": "https://w3c.github.io/touch-events/#dom-touch-touchtype",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -801,7 +868,8 @@
               "version_added": "10"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TouchEvent.json b/api/TouchEvent.json
index b402cd698852ac..0e17f3ef593c6d 100644
--- a/api/TouchEvent.json
+++ b/api/TouchEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchEvent",
         "spec_url": "https://w3c.github.io/touch-events/#touchevent-interface",
+        "tags": [
+          "web-features:touch-events"
+        ],
         "support": {
           "chrome": {
             "version_added": "22"
@@ -17,7 +20,7 @@
             {
               "version_added": "18",
               "version_removed": "24",
-              "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+              "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
             }
           ],
           "firefox_android": {
@@ -36,7 +39,8 @@
             "version_added": "3.2"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,13 +50,16 @@
       },
       "TouchEvent": {
         "__compat": {
-          "description": "<code>TouchEvent()</code> constructor",
+          "description": "`TouchEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchEvent/TouchEvent",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchevent-constructor",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "48",
-              "notes": "Chrome only supports the following <code>touchEventInit</code> properties: <code>touches</code>, <code>targetTouches</code>, <code>changedTouches</code>."
+              "notes": "Chrome only supports the following `touchEventInit` properties: `touches`, `targetTouches`, `changedTouches`."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -75,7 +82,8 @@
               "version_added": "3.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,6 +96,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchEvent/altKey",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchevent-altkey",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -101,7 +112,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -120,7 +131,8 @@
               "version_added": "3.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -133,6 +145,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchEvent/changedTouches",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchevent-changedtouches",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -146,7 +161,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -165,7 +180,8 @@
               "version_added": "3.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,6 +194,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchEvent/ctrlKey",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchevent-ctrlkey",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -191,7 +210,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -210,7 +229,8 @@
               "version_added": "3.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,6 +243,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchEvent/metaKey",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchevent-metakey",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -236,7 +259,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -255,7 +278,8 @@
               "version_added": "3.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -268,6 +292,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchEvent/shiftKey",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchevent-shiftkey",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -281,7 +308,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -300,7 +327,8 @@
               "version_added": "3.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -313,6 +341,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchEvent/targetTouches",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchevent-targettouches",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -326,7 +357,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -345,7 +376,8 @@
               "version_added": "3.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -358,6 +390,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchEvent/touches",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchevent-touches",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "22"
@@ -371,7 +406,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -390,7 +425,8 @@
               "version_added": "3.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TouchList.json b/api/TouchList.json
index 4c57b1cb570b10..70b43fbe51ab9b 100644
--- a/api/TouchList.json
+++ b/api/TouchList.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchList",
         "spec_url": "https://w3c.github.io/touch-events/#touchlist-interface",
+        "tags": [
+          "web-features:touch-events"
+        ],
         "support": {
           "chrome": {
             "version_added": "18"
@@ -21,7 +24,7 @@
             {
               "version_added": "18",
               "version_removed": "24",
-              "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+              "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
             }
           ],
           "firefox_android": {
@@ -40,7 +43,8 @@
             "version_added": "2"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -52,6 +56,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchList/item",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchlist-item",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "18"
@@ -69,7 +76,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -88,7 +95,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,6 +109,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TouchList/length",
           "spec_url": "https://w3c.github.io/touch-events/#dom-touchlist-length",
+          "tags": [
+            "web-features:touch-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "18"
@@ -118,7 +129,7 @@
               {
                 "version_added": "18",
                 "version_removed": "24",
-                "notes": "Removed in <a href='https://bugzil.la/888304'>bug 888304</a> due to web compatibility issues."
+                "notes": "Removed in [bug 888304](https://bugzil.la/888304) due to web compatibility issues."
               }
             ],
             "firefox_android": {
@@ -137,7 +148,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TrackEvent.json b/api/TrackEvent.json
index c8c36846f6e45c..838928790876f6 100644
--- a/api/TrackEvent.json
+++ b/api/TrackEvent.json
@@ -33,7 +33,8 @@
             "version_added": "7"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,7 +44,7 @@
       },
       "TrackEvent": {
         "__compat": {
-          "description": "<code>TrackEvent()</code> constructor",
+          "description": "`TrackEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TrackEvent/TrackEvent",
           "spec_url": "https://html.spec.whatwg.org/multipage/media.html#the-trackevent-interface",
           "support": {
@@ -71,7 +72,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +115,8 @@
               "version_added": "7"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TransformStream.json b/api/TransformStream.json
index 04c8a2f97b21f0..636b26dbdf6f61 100644
--- a/api/TransformStream.json
+++ b/api/TransformStream.json
@@ -26,11 +26,8 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -41,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -51,7 +49,7 @@
       },
       "TransformStream": {
         "__compat": {
-          "description": "<code>TransformStream()</code> constructor",
+          "description": "`TransformStream()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TransformStream/TransformStream",
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-ts-constructor④",
           "support": {
@@ -81,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -121,7 +120,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,7 +151,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": false
+              "version_added": "16.5.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -161,7 +161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,7 +202,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TransformStreamDefaultController.json b/api/TransformStreamDefaultController.json
index 5280c584d62d3a..f42d541b7e98c7 100644
--- a/api/TransformStreamDefaultController.json
+++ b/api/TransformStreamDefaultController.json
@@ -17,7 +17,7 @@
               "version_added": "1.0",
               "version_removed": "1.11",
               "partial_implementation": true,
-              "notes": "<code>TransformStreamDefaultController</code> is not exposed on the global scope."
+              "notes": "`TransformStreamDefaultController` is not exposed on the global scope."
             }
           ],
           "edge": "mirror",
@@ -28,9 +28,16 @@
           "ie": {
             "version_added": false
           },
-          "nodejs": {
-            "version_added": "16.5.0"
-          },
+          "nodejs": [
+            {
+              "version_added": "18.0.0"
+            },
+            {
+              "version_added": "16.5.0",
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
+            }
+          ],
           "oculus": "mirror",
           "opera": "mirror",
           "opera_android": "mirror",
@@ -39,7 +46,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -78,7 +86,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,7 +168,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TransitionEvent.json b/api/TransitionEvent.json
index 118fa59b1f5af7..f6808b5102abb7 100644
--- a/api/TransitionEvent.json
+++ b/api/TransitionEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/TransitionEvent",
         "spec_url": "https://drafts.csswg.org/css-transitions/#interface-transitionevent",
+        "tags": [
+          "web-features:transitions"
+        ],
         "support": {
           "chrome": [
             {
@@ -70,7 +73,8 @@
               "version_added": "≤37",
               "version_removed": "71"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,9 +84,12 @@
       },
       "TransitionEvent": {
         "__compat": {
-          "description": "<code>TransitionEvent()</code> constructor",
+          "description": "`TransitionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TransitionEvent/TransitionEvent",
           "spec_url": "https://drafts.csswg.org/css-transitions/#dom-transitionevent-transitionevent",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": {
               "version_added": "27"
@@ -114,7 +121,8 @@
             "samsunginternet_android": {
               "version_added": "2.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -127,6 +135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TransitionEvent/elapsedTime",
           "spec_url": "https://drafts.csswg.org/css-transitions/#Events-TransitionEvent-elapsedTime",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -154,7 +165,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -167,6 +179,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TransitionEvent/propertyName",
           "spec_url": "https://drafts.csswg.org/css-transitions/#Events-TransitionEvent-propertyName",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -194,7 +209,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -207,6 +223,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TransitionEvent/pseudoElement",
           "spec_url": "https://drafts.csswg.org/css-transitions/#Events-TransitionEvent-pseudoElement",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -228,7 +247,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TreeWalker.json b/api/TreeWalker.json
index dc2381b7e72317..ee93907d49f727 100644
--- a/api/TreeWalker.json
+++ b/api/TreeWalker.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker",
         "spec_url": "https://dom.spec.whatwg.org/#interface-treewalker",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -35,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +51,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/currentNode",
           "spec_url": "https://dom.spec.whatwg.org/#ref-for-dom-treewalker-currentnode①",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +99,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/filter",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-filter",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -122,7 +133,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,6 +147,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/firstChild",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-firstchild",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -166,7 +181,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -179,6 +195,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/lastChild",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-lastchild",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -210,7 +229,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -223,6 +243,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/nextNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-nextnode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -254,7 +277,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -267,6 +291,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/nextSibling",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-nextsibling",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -298,7 +325,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -311,6 +339,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/parentNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-parentnode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -342,7 +373,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -355,6 +387,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/previousNode",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-previousnode",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -386,7 +421,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -399,6 +435,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/previousSibling",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-previoussibling",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -430,7 +469,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -443,6 +483,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/root",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-root",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -474,7 +517,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -487,6 +531,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/TreeWalker/whatToShow",
           "spec_url": "https://dom.spec.whatwg.org/#dom-treewalker-whattoshow",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -518,7 +565,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TrustedHTML.json b/api/TrustedHTML.json
index 38dd11f0d3f600..917aefd5dc3733 100644
--- a/api/TrustedHTML.json
+++ b/api/TrustedHTML.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1508286"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/266630"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TrustedScript.json b/api/TrustedScript.json
index 0bb6c6a7de5c92..eefe4b4697152a 100644
--- a/api/TrustedScript.json
+++ b/api/TrustedScript.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1508286"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/266630"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TrustedScriptURL.json b/api/TrustedScriptURL.json
index 44e92ebdad5838..995c5dc544d54f 100644
--- a/api/TrustedScriptURL.json
+++ b/api/TrustedScriptURL.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1508286"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/266630"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TrustedTypePolicy.json b/api/TrustedTypePolicy.json
index 9242749f21e458..5f8a05278e3b03 100644
--- a/api/TrustedTypePolicy.json
+++ b/api/TrustedTypePolicy.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1508286"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/266630"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +181,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/TrustedTypePolicyFactory.json b/api/TrustedTypePolicyFactory.json
index ddb5c557a512b4..7fd9bc8a51833d 100644
--- a/api/TrustedTypePolicyFactory.json
+++ b/api/TrustedTypePolicyFactory.json
@@ -14,7 +14,15 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": "133",
+            "flags": [
+              {
+                "type": "preference",
+                "name": "dom.security.trusted_types.enabled",
+                "value_to_set": "true"
+              }
+            ],
+            "impl_url": "https://bugzil.la/1508286"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +32,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/266630"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +112,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +188,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -198,7 +212,14 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.security.trusted_types.enabled",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -212,7 +233,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -235,7 +257,14 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "dom.security.trusted_types.enabled",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -249,7 +278,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,7 +316,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -323,7 +354,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -360,7 +392,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/UIEvent.json b/api/UIEvent.json
index fc168626dcd714..9eccb37c75397e 100644
--- a/api/UIEvent.json
+++ b/api/UIEvent.json
@@ -33,7 +33,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,7 +44,7 @@
       },
       "UIEvent": {
         "__compat": {
-          "description": "<code>UIEvent()</code> constructor",
+          "description": "`UIEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/UIEvent/UIEvent",
           "spec_url": "https://w3c.github.io/uievents/#dom-uievent-uievent",
           "support": {
@@ -73,7 +74,8 @@
             },
             "webview_android": {
               "version_added": "1"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +103,7 @@
             "ie": {
               "version_added": "9",
               "partial_implementation": true,
-              "notes": "Always <code>0</code> on <code>click</code> and <code>dblclick</code> events. On <code>mousedown</code> and <code>mouseup</code> events, the count is not unique to the element, but is rather the global click count for the current document -- even across refreshes."
+              "notes": "Always `0` on `click` and `dblclick` events. On `mousedown` and `mouseup` events, the count is not unique to the element, but is rather the global click count for the current document -- even across refreshes."
             },
             "oculus": "mirror",
             "opera": {
@@ -117,7 +119,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,7 +162,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -193,7 +197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -235,7 +240,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -261,18 +267,18 @@
                 "version_added": "12",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/KeyboardEvent'><code>KeyboardEvent</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/MouseEvent'><code>MouseEvent</code></a>, not all <code>UIEvent</code> objects."
+                "notes": "Only supported for [`KeyboardEvent`](https://developer.mozilla.org/docs/Web/API/KeyboardEvent) and [`MouseEvent`](https://developer.mozilla.org/docs/Web/API/MouseEvent), not all `UIEvent` objects."
               }
             ],
             "firefox": {
               "version_added": "1",
-              "notes": "On <code>mousemove</code> events, the <code>which</code> property is incorrectly always set to <code>1</code>."
+              "notes": "On `mousemove` events, the `which` property is incorrectly always set to `1`."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
               "partial_implementation": true,
-              "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/KeyboardEvent'><code>KeyboardEvent</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/MouseEvent'><code>MouseEvent</code></a>, not all <code>UIEvent</code> objects."
+              "notes": "Only supported for [`KeyboardEvent`](https://developer.mozilla.org/docs/Web/API/KeyboardEvent) and [`MouseEvent`](https://developer.mozilla.org/docs/Web/API/MouseEvent), not all `UIEvent` objects."
             },
             "oculus": "mirror",
             "opera": [
@@ -283,7 +289,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "15",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/KeyboardEvent'><code>KeyboardEvent</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/MouseEvent'><code>MouseEvent</code></a>, not all <code>UIEvent</code> objects."
+                "notes": "Only supported for [`KeyboardEvent`](https://developer.mozilla.org/docs/Web/API/KeyboardEvent) and [`MouseEvent`](https://developer.mozilla.org/docs/Web/API/MouseEvent), not all `UIEvent` objects."
               }
             ],
             "opera_android": [
@@ -294,7 +300,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "14",
                 "partial_implementation": true,
-                "notes": "Only supported for <a href='https://developer.mozilla.org/docs/Web/API/KeyboardEvent'><code>KeyboardEvent</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/MouseEvent'><code>MouseEvent</code></a>, not all <code>UIEvent</code> objects."
+                "notes": "Only supported for [`KeyboardEvent`](https://developer.mozilla.org/docs/Web/API/KeyboardEvent) and [`MouseEvent`](https://developer.mozilla.org/docs/Web/API/MouseEvent), not all `UIEvent` objects."
               }
             ],
             "safari": {
@@ -304,7 +310,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/URL.json b/api/URL.json
index f8847724d312f4..4e29a7dcbbf422 100644
--- a/api/URL.json
+++ b/api/URL.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL",
         "spec_url": "https://url.spec.whatwg.org/#url",
+        "tags": [
+          "web-features:url"
+        ],
         "support": {
           "chrome": [
             {
@@ -23,7 +26,7 @@
           },
           "firefox": {
             "version_added": "19",
-            "notes": "Before version 57, Firefox had a bug whereby single quotes contained in URLs are escaped when accessed via URL APIs (see <a href='https://bugzil.la/1386683'>bug 1386683</a>)."
+            "notes": "Before version 57, Firefox had a bug whereby single quotes contained in URLs are escaped when accessed via URL APIs (see [bug 1386683](https://bugzil.la/1386683))."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -37,7 +40,7 @@
               "version_added": "7.0.0",
               "version_removed": "10.0.0",
               "partial_implementation": true,
-              "notes": "Available as a part of the <code>URL</code> module."
+              "notes": "Available as a part of the `URL` module."
             }
           ],
           "oculus": "mirror",
@@ -62,7 +65,8 @@
               "prefix": "webkit",
               "version_added": "4"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,9 +76,12 @@
       },
       "URL": {
         "__compat": {
-          "description": "<code>URL()</code> constructor",
+          "description": "`URL()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/URL",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-url",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "19"
@@ -85,11 +92,11 @@
             },
             "edge": {
               "version_added": "12",
-              "notes": "Before Edge 79, query arguments in the base URL argument are removed when calling the <code>URL</code> constructor."
+              "notes": "Before Edge 79, query arguments in the base URL argument are removed when calling the `URL` constructor."
             },
             "firefox": {
               "version_added": "26",
-              "notes": "Before version 122, <code>host</code>, <code>hostname</code>, and <code>port</code> were not parsed for unknown protocols/schemes."
+              "notes": "Before version 122, `host`, `hostname`, and `port` were not parsed for unknown protocols/schemes."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -103,7 +110,7 @@
                 "version_added": "7.0.0",
                 "version_removed": "10.0.0",
                 "partial_implementation": true,
-                "notes": "Available as a part of the <code>URL</code> module."
+                "notes": "Available as a part of the `URL` module."
               }
             ],
             "oculus": "mirror",
@@ -116,12 +123,13 @@
               {
                 "version_added": "6",
                 "partial_implementation": true,
-                "notes": "Before Safari 14.1, calling the <code>URL</code> constructor with a base URL whose value is <code>undefined</code> caused Safari to throw a <code>TypeError</code>, see <a href='https://webkit.org/b/216841'>bug 216841</a>."
+                "notes": "Before Safari 14.1, calling the `URL` constructor with a base URL whose value is `undefined` caused Safari to throw a `TypeError`, see [bug 216841](https://webkit.org/b/216841)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -132,7 +140,7 @@
       },
       "canParse_static": {
         "__compat": {
-          "description": "<code>canParse()</code> static method",
+          "description": "`canParse()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/canParse_static",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-canparse",
           "tags": [
@@ -171,7 +179,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -182,7 +191,7 @@
       },
       "createObjectURL_static": {
         "__compat": {
-          "description": "<code>createObjectURL()</code> static method",
+          "description": "`createObjectURL()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/createObjectURL_static",
           "spec_url": "https://w3c.github.io/FileAPI/#dfn-createObjectURL",
           "support": {
@@ -198,12 +207,12 @@
             },
             "firefox": {
               "version_added": "19",
-              "notes": "<code>createObjectURL()</code> is no longer available within the context of a <code>ServiceWorker</code>."
+              "notes": "`createObjectURL()` is no longer available within the context of a `ServiceWorker`."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
-              "notes": "If the underlying object does not have a content type set, using this URL as the <code>src</code> of an <code>img</code> tag fails intermittently with error DOM7009."
+              "notes": "If the underlying object does not have a content type set, using this URL as the `src` of an `img` tag fails intermittently with error DOM7009."
             },
             "nodejs": {
               "version_added": "16.7.0"
@@ -216,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -229,6 +239,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/hash",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-hash",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -258,7 +271,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -271,6 +285,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/host",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-host",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -300,7 +317,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -313,6 +331,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/hostname",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-hostname",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -342,7 +363,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -355,6 +377,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/href",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-href",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -384,7 +409,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -397,6 +423,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/origin",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-origin",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -415,7 +444,7 @@
               {
                 "version_added": "26",
                 "version_removed": "49",
-                "notes": "Results for <code>URL</code> using the <code>blob</code> scheme incorrectly returned <code>null</code>."
+                "notes": "Results for `URL` using the `blob` scheme incorrectly returned `null`."
               }
             ],
             "firefox_android": "mirror",
@@ -435,7 +464,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -446,9 +476,12 @@
       },
       "parse_static": {
         "__compat": {
-          "description": "<code>parse()</code> static method",
+          "description": "`parse()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/parse_static",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-parse",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "126"
@@ -465,6 +498,9 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": "22.1.0"
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -473,7 +509,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -486,6 +523,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/password",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-password",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -517,7 +557,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -530,6 +571,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/pathname",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-pathname",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -543,7 +587,7 @@
             },
             "firefox": {
               "version_added": "22",
-              "notes": "Before Firefox 53, <code>pathname</code> and <code>search</code> returned wrong values for custom protocols. Given <code>protocol:host/x?a=true&amp;b=false</code>, <code>pathname</code> would return \"/x?a=true&amp;b=false\" and <code>search</code> would return \"\", rather than \"/x\" and \"?a=true&amp;b=false\" respectively. See <a href='https://bugzil.la/1310483'>bug 1310483</a>."
+              "notes": "Before Firefox 53, `pathname` and `search` returned wrong values for custom protocols. Given `protocol:host/x?a=true&amp;b=false`, `pathname` would return \"/x?a=true&amp;b=false\" and `search` would return \"\", rather than \"/x\" and \"?a=true&amp;b=false\" respectively. See [bug 1310483](https://bugzil.la/1310483)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -560,7 +604,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -573,6 +618,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/port",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-port",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -602,7 +650,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -615,6 +664,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/protocol",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-protocol",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -644,7 +696,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -655,7 +708,7 @@
       },
       "revokeObjectURL_static": {
         "__compat": {
-          "description": "<code>revokeObjectURL()</code> static method",
+          "description": "`revokeObjectURL()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/revokeObjectURL_static",
           "spec_url": "https://w3c.github.io/FileAPI/#dfn-revokeObjectURL",
           "support": {
@@ -671,7 +724,7 @@
             },
             "firefox": {
               "version_added": "19",
-              "notes": "<code>revokeObjectURL()</code> is no longer available within the context of a <code>ServiceWorker</code>."
+              "notes": "`revokeObjectURL()` is no longer available within the context of a `ServiceWorker`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -688,7 +741,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -701,6 +755,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/search",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-search",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -714,7 +771,7 @@
             },
             "firefox": {
               "version_added": "22",
-              "notes": "Before Firefox 53, <code>pathname</code> and <code>search</code> returned wrong values for custom protocols. Given <code>protocol:host/x?a=true&amp;b=false</code>, <code>pathname</code> would return \"/x?a=true&amp;b=false\" and <code>search</code> would return \"\", rather than \"/x\" and \"?a=true&amp;b=false\" respectively. See <a href='https://bugzil.la/1310483'>bug 1310483</a>."
+              "notes": "Before Firefox 53, `pathname` and `search` returned wrong values for custom protocols. Given `protocol:host/x?a=true&amp;b=false`, `pathname` would return \"/x?a=true&amp;b=false\" and `search` would return \"\", rather than \"/x\" and \"?a=true&amp;b=false\" respectively. See [bug 1310483](https://bugzil.la/1310483)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -731,7 +788,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -744,6 +802,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/searchParams",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-searchparams",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "51"
@@ -770,7 +831,7 @@
                 "version_added": "7.0.0",
                 "version_removed": "7.5.0",
                 "partial_implementation": true,
-                "notes": "An object matching the <code>URLSearchParams</code> interface is returned, but it contains no data."
+                "notes": "An object matching the `URLSearchParams` interface is returned, but it contains no data."
               }
             ],
             "oculus": "mirror",
@@ -781,7 +842,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -794,6 +856,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/toJSON",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-tojson",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "71"
@@ -823,7 +888,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -836,6 +902,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/toString",
           "spec_url": "https://url.spec.whatwg.org/#URL-stringification-behavior",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "19"
@@ -867,7 +936,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -880,6 +950,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URL/username",
           "spec_url": "https://url.spec.whatwg.org/#dom-url-username",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -911,7 +984,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/URLPattern.json b/api/URLPattern.json
index 852902ff8a5657..6bcfc2b34914b9 100644
--- a/api/URLPattern.json
+++ b/api/URLPattern.json
@@ -17,7 +17,8 @@
           },
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1731418"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -31,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +43,7 @@
       },
       "URLPattern": {
         "__compat": {
-          "description": "<code>URLPattern()</code> constructor",
+          "description": "`URLPattern()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLPattern/URLPattern",
           "spec_url": "https://urlpattern.spec.whatwg.org/#dom-urlpattern-urlpattern",
           "tags": [
@@ -71,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -81,7 +84,7 @@
         },
         "ignoreCase_option": {
           "__compat": {
-            "description": "<code>ignoreCase</code> option",
+            "description": "`ignoreCase` option",
             "spec_url": "https://urlpattern.spec.whatwg.org/#dom-urlpatternoptions-ignorecase",
             "tags": [
               "web-features:urlpattern"
@@ -110,7 +113,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -151,7 +155,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -191,7 +196,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -227,7 +233,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -267,7 +274,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -307,7 +315,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -347,7 +356,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -387,7 +397,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -427,7 +438,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -467,7 +479,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -507,7 +520,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -547,7 +561,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/URLSearchParams.json b/api/URLSearchParams.json
index 37be8d2ecdd85b..728ec6a6330dd9 100644
--- a/api/URLSearchParams.json
+++ b/api/URLSearchParams.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams",
         "spec_url": "https://url.spec.whatwg.org/#urlsearchparams",
+        "tags": [
+          "web-features:url"
+        ],
         "support": {
           "chrome": {
             "version_added": "49"
@@ -17,7 +20,7 @@
           },
           "firefox": {
             "version_added": "29",
-            "notes": "Before version 57 single quotes in URLs were escaped (see <a href='https://bugzil.la/1386683'>bug 1386683</a>)."
+            "notes": "Before version 57 single quotes in URLs were escaped (see [bug 1386683](https://bugzil.la/1386683))."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -31,7 +34,7 @@
               "version_added": "7.5.0",
               "version_removed": "10.0.0",
               "partial_implementation": true,
-              "notes": "Only available implicitly or as import from the <code>URL</code> module."
+              "notes": "Only available implicitly or as import from the `URL` module."
             }
           ],
           "oculus": "mirror",
@@ -42,7 +45,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -52,9 +56,12 @@
       },
       "URLSearchParams": {
         "__compat": {
-          "description": "<code>URLSearchParams()</code> constructor",
+          "description": "`URLSearchParams()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/URLSearchParams",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-urlsearchparams",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -84,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -94,7 +102,10 @@
         },
         "USVString": {
           "__compat": {
-            "description": "<code>USVString</code> for <code>init</code> object",
+            "description": "`USVString` for `init` object",
+            "tags": [
+              "web-features:url"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -124,7 +135,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,7 +147,10 @@
         },
         "record": {
           "__compat": {
-            "description": "record for <code>init</code> object",
+            "description": "record for `init` object",
+            "tags": [
+              "web-features:url"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -165,7 +180,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -176,7 +192,10 @@
         },
         "sequence": {
           "__compat": {
-            "description": "sequence for <code>init</code> object",
+            "description": "sequence for `init` object",
+            "tags": [
+              "web-features:url"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -208,7 +227,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -222,6 +242,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/append",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-append",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -251,7 +274,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -264,6 +288,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/delete",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-delete",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -295,12 +322,13 @@
               {
                 "version_added": "10.1",
                 "partial_implementation": true,
-                "notes": "Removing a non-existent query parameter doesn't remove <code>?</code> from the URL. See <a href='https://webkit.org/b/193022'>bug 193022</a>."
+                "notes": "Removing a non-existent query parameter doesn't remove `?` from the URL. See [bug 193022](https://webkit.org/b/193022)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -310,7 +338,10 @@
         },
         "value_parameter": {
           "__compat": {
-            "description": "<code>value</code> parameter",
+            "description": "`value` parameter",
+            "tags": [
+              "web-features:url"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117"
@@ -338,7 +369,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -352,6 +384,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/entries",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-urlsearchparams",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -381,7 +416,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -394,6 +430,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/forEach",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-urlsearchparams",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -423,7 +462,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -436,6 +476,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/get",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-get",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -465,7 +508,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -478,6 +522,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/getAll",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-getall",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -507,7 +554,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -520,6 +568,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/has",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-has",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -549,7 +600,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -559,7 +611,10 @@
         },
         "value_parameter": {
           "__compat": {
-            "description": "<code>value</code> parameter",
+            "description": "`value` parameter",
+            "tags": [
+              "web-features:url"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117"
@@ -587,7 +642,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -601,6 +657,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/keys",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-urlsearchparams",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -630,7 +689,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -643,6 +703,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/set",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-set",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -672,7 +735,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -685,6 +749,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/size",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-size",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "113"
@@ -718,7 +785,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -731,6 +799,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/sort",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-sort",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -760,7 +831,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -773,6 +845,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/toString",
           "spec_url": "https://url.spec.whatwg.org/#urlsearchparams-stringification-behavior",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -802,7 +877,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -815,6 +891,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/URLSearchParams/values",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-urlsearchparams",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -844,7 +923,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -857,6 +937,9 @@
         "__compat": {
           "description": "[Symbol.iterator]",
           "spec_url": "https://url.spec.whatwg.org/#dom-urlsearchparams-urlsearchparams",
+          "tags": [
+            "web-features:url"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -886,7 +969,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/USB.json b/api/USB.json
index 963bc82ab7a7bc..f873b9ad980923 100644
--- a/api/USB.json
+++ b/api/USB.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,9 +40,60 @@
           "deprecated": false
         }
       },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "connect_event": {
         "__compat": {
-          "description": "<code>connect</code> event",
+          "description": "`connect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/USB/connect_event",
           "spec_url": [
             "https://wicg.github.io/webusb/#connect",
@@ -73,7 +125,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -84,7 +137,7 @@
       },
       "disconnect_event": {
         "__compat": {
-          "description": "<code>disconnect</code> event",
+          "description": "`disconnect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/USB/disconnect_event",
           "spec_url": [
             "https://wicg.github.io/webusb/#disconnect",
@@ -116,7 +169,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -155,7 +209,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -194,7 +249,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBAlternateInterface.json b/api/USBAlternateInterface.json
index e3837a44eb3af4..fb9554140faa7c 100644
--- a/api/USBAlternateInterface.json
+++ b/api/USBAlternateInterface.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBAlternateInterface": {
         "__compat": {
-          "description": "<code>USBAlternateInterface()</code> constructor",
+          "description": "`USBAlternateInterface()` constructor",
           "tags": [
             "web-features:webusb"
           ],
@@ -68,7 +69,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,7 +198,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -182,7 +237,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -220,7 +276,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -258,7 +315,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -296,7 +354,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBConfiguration.json b/api/USBConfiguration.json
index b77ed398d6e5b4..9c09a600a169f4 100644
--- a/api/USBConfiguration.json
+++ b/api/USBConfiguration.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBConfiguration": {
         "__compat": {
-          "description": "<code>USBConfiguration()</code> constructor",
+          "description": "`USBConfiguration()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/USBConfiguration/USBConfiguration",
           "spec_url": "https://wicg.github.io/webusb/#dom-usbconfiguration-usbconfiguration",
           "tags": [
@@ -70,7 +71,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -109,7 +162,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -148,7 +202,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -187,7 +242,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBConnectionEvent.json b/api/USBConnectionEvent.json
index 28df805cfb0749..196f3aa4eb0ca5 100644
--- a/api/USBConnectionEvent.json
+++ b/api/USBConnectionEvent.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBConnectionEvent": {
         "__compat": {
-          "description": "<code>USBConnectionEvent()</code> constructor",
+          "description": "`USBConnectionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/USBConnectionEvent/USBConnectionEvent",
           "spec_url": "https://wicg.github.io/webusb/#dom-usbconnectionevent-usbconnectionevent",
           "tags": [
@@ -70,7 +71,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -109,7 +162,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBDevice.json b/api/USBDevice.json
index 6eb68bb6c5c3a8..4fea74c8f626ad 100644
--- a/api/USBDevice.json
+++ b/api/USBDevice.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +40,57 @@
           "deprecated": false
         }
       },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "claimInterface": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/USBDevice/claimInterface",
@@ -69,7 +121,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,7 +161,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,7 +201,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -186,7 +241,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -225,7 +281,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -264,7 +321,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -303,7 +361,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -342,7 +401,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -381,7 +441,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -420,7 +481,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -459,7 +521,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -498,7 +561,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -537,7 +601,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -576,7 +641,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -615,7 +681,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -654,7 +721,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -693,7 +761,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -732,7 +801,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -771,7 +841,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -782,7 +853,7 @@
       },
       "productId": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/USBDevice/productID",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/USBDevice/productId",
           "spec_url": "https://wicg.github.io/webusb/#ref-for-dom-usbdevice-productid",
           "tags": [
             "web-features:webusb"
@@ -810,7 +881,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -849,7 +921,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -888,7 +961,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -927,7 +1001,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -966,7 +1041,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1005,7 +1081,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1044,7 +1121,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1083,7 +1161,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1122,7 +1201,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1161,7 +1241,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1200,7 +1281,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1239,7 +1321,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1250,7 +1333,7 @@
       },
       "vendorId": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/USBDevice/vendorID",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/USBDevice/vendorId",
           "spec_url": "https://wicg.github.io/webusb/#ref-for-dom-usbdevice-vendorid",
           "tags": [
             "web-features:webusb"
@@ -1278,7 +1361,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBEndpoint.json b/api/USBEndpoint.json
index e3b5cabd10cefe..d57933b7d66ed0 100644
--- a/api/USBEndpoint.json
+++ b/api/USBEndpoint.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBEndpoint": {
         "__compat": {
-          "description": "<code>USBEndpoint()</code> constructor",
+          "description": "`USBEndpoint()` constructor",
           "tags": [
             "web-features:webusb"
           ],
@@ -68,7 +69,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,7 +198,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -182,7 +237,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -220,7 +276,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBInTransferResult.json b/api/USBInTransferResult.json
index 9e29384d1f018c..0878b8571b9e9c 100644
--- a/api/USBInTransferResult.json
+++ b/api/USBInTransferResult.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBInTransferResult": {
         "__compat": {
-          "description": "<code>USBInTransferResult()</code> constructor",
+          "description": "`USBInTransferResult()` constructor",
           "tags": [
             "web-features:webusb"
           ],
@@ -68,7 +69,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,7 +198,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBInterface.json b/api/USBInterface.json
index 45f3ab5ca01d16..67332136f74f63 100644
--- a/api/USBInterface.json
+++ b/api/USBInterface.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBInterface": {
         "__compat": {
-          "description": "<code>USBInterface()</code> constructor",
+          "description": "`USBInterface()` constructor",
           "tags": [
             "web-features:webusb"
           ],
@@ -68,7 +69,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,7 +198,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -182,7 +237,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -220,7 +276,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBIsochronousInTransferPacket.json b/api/USBIsochronousInTransferPacket.json
index 7ac5f670b16698..115a55ce94de75 100644
--- a/api/USBIsochronousInTransferPacket.json
+++ b/api/USBIsochronousInTransferPacket.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBIsochronousInTransferPacket": {
         "__compat": {
-          "description": "<code>USBIsochronousInTransferPacket()</code> constructor",
+          "description": "`USBIsochronousInTransferPacket()` constructor",
           "tags": [
             "web-features:webusb"
           ],
@@ -68,7 +69,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,7 +198,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBIsochronousInTransferResult.json b/api/USBIsochronousInTransferResult.json
index 8e576022084445..0f9a7b26844535 100644
--- a/api/USBIsochronousInTransferResult.json
+++ b/api/USBIsochronousInTransferResult.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBIsochronousInTransferResult": {
         "__compat": {
-          "description": "<code>USBIsochronousInTransferResult()</code> constructor",
+          "description": "`USBIsochronousInTransferResult()` constructor",
           "tags": [
             "web-features:webusb"
           ],
@@ -68,7 +69,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,7 +198,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBIsochronousOutTransferPacket.json b/api/USBIsochronousOutTransferPacket.json
index dbe88d771de1ce..ca8177e6aa0815 100644
--- a/api/USBIsochronousOutTransferPacket.json
+++ b/api/USBIsochronousOutTransferPacket.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBIsochronousOutTransferPacket": {
         "__compat": {
-          "description": "<code>USBIsochronousOutTransferPacket()</code> constructor",
+          "description": "`USBIsochronousOutTransferPacket()` constructor",
           "tags": [
             "web-features:webusb"
           ],
@@ -68,7 +69,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,7 +198,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBIsochronousOutTransferResult.json b/api/USBIsochronousOutTransferResult.json
index 0fba86677e0573..fe57b7353aac05 100644
--- a/api/USBIsochronousOutTransferResult.json
+++ b/api/USBIsochronousOutTransferResult.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBIsochronousOutTransferResult": {
         "__compat": {
-          "description": "<code>USBIsochronousOutTransferResult()</code> constructor",
+          "description": "`USBIsochronousOutTransferResult()` constructor",
           "tags": [
             "web-features:webusb"
           ],
@@ -68,7 +69,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/USBOutTransferResult.json b/api/USBOutTransferResult.json
index 9effd5fda62705..010c83bff08739 100644
--- a/api/USBOutTransferResult.json
+++ b/api/USBOutTransferResult.json
@@ -30,8 +30,9 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false,
-            "notes": "WebView exposes this interface, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-          }
+            "notes": "WebView exposes this interface, but does not support WebUSB. See [bug 41441927](https://crbug.com/41441927)."
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,7 +42,7 @@
       },
       "USBOutTransferResult": {
         "__compat": {
-          "description": "<code>USBOutTransferResult()</code> constructor",
+          "description": "`USBOutTransferResult()` constructor",
           "tags": [
             "web-features:webusb"
           ],
@@ -68,7 +69,59 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "tags": [
+            "web-features:webusb"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes this interface, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,7 +159,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,7 +198,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/UserActivation.json b/api/UserActivation.json
index dd700447f28c9f..6e6395fd4f767e 100644
--- a/api/UserActivation.json
+++ b/api/UserActivation.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,7 +77,7 @@
       },
       "isActive": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/UserActivation/hasBeenActive",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/UserActivation/isActive",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-useractivation-isactive",
           "tags": [
             "web-features:user-activation"
@@ -101,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VRDisplay.json b/api/VRDisplay.json
index 8a60c98212e544..c1b76853c0e8f5 100644
--- a/api/VRDisplay.json
+++ b/api/VRDisplay.json
@@ -52,7 +52,8 @@
             "version_added": "6.0",
             "notes": "Google Cardboard supported in Samsung Internet 7.0."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -112,7 +113,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,7 +175,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -234,7 +237,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -295,7 +299,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -356,7 +361,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -417,7 +423,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -478,7 +485,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -539,7 +547,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -600,7 +609,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -655,7 +665,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -716,7 +727,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -777,7 +789,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -838,7 +851,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -899,7 +913,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -960,7 +975,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1021,7 +1037,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1082,7 +1099,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1143,7 +1161,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1204,7 +1223,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VRDisplayCapabilities.json b/api/VRDisplayCapabilities.json
index 3837eb9721a336..af59ac19592336 100644
--- a/api/VRDisplayCapabilities.json
+++ b/api/VRDisplayCapabilities.json
@@ -52,7 +52,8 @@
             "version_added": "6.0",
             "notes": "Google Cardboard supported in Samsung Internet 7.0."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -112,7 +113,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,7 +175,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -234,7 +237,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -295,7 +299,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -356,7 +361,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VRDisplayEvent.json b/api/VRDisplayEvent.json
index e9d473539b240f..82651db3f780d9 100644
--- a/api/VRDisplayEvent.json
+++ b/api/VRDisplayEvent.json
@@ -52,7 +52,8 @@
             "version_added": "6.0",
             "notes": "Google Cardboard supported in Samsung Internet 7.0."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,7 @@
       },
       "VRDisplayEvent": {
         "__compat": {
-          "description": "<code>VRDisplayEvent()</code> constructor",
+          "description": "`VRDisplayEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VRDisplayEvent/VRDisplayEvent",
           "support": {
             "chrome": {
@@ -113,7 +114,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,7 +176,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -235,7 +238,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VREyeParameters.json b/api/VREyeParameters.json
index bcc0d12e1c0443..78606c286d9d13 100644
--- a/api/VREyeParameters.json
+++ b/api/VREyeParameters.json
@@ -52,7 +52,8 @@
             "version_added": "6.0",
             "notes": "Google Cardboard supported in Samsung Internet 7.0."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -112,7 +113,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -167,7 +169,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -222,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -283,7 +287,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -344,7 +349,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -405,7 +411,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VRFieldOfView.json b/api/VRFieldOfView.json
index 5304f6f8ef9f4c..13e16cb6e33e5a 100644
--- a/api/VRFieldOfView.json
+++ b/api/VRFieldOfView.json
@@ -52,7 +52,8 @@
             "version_added": "6.0",
             "notes": "Google Cardboard supported in Samsung Internet 7.0."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -112,7 +113,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,7 +175,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -234,7 +237,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -295,7 +299,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VRFrameData.json b/api/VRFrameData.json
index d82dc2167fd5ba..51b3ff8770f417 100644
--- a/api/VRFrameData.json
+++ b/api/VRFrameData.json
@@ -52,7 +52,8 @@
             "version_added": "6.0",
             "notes": "Google Cardboard supported in Samsung Internet 7.0."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -62,7 +63,7 @@
       },
       "VRFrameData": {
         "__compat": {
-          "description": "<code>VRFrameData()</code> constructor",
+          "description": "`VRFrameData()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VRFrameData/VRFrameData",
           "support": {
             "chrome": {
@@ -113,7 +114,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,7 +176,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -235,7 +238,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -296,7 +300,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -357,7 +362,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -418,7 +424,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -479,7 +486,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VRPose.json b/api/VRPose.json
index aa7c8200f06cea..a60d9211740d26 100644
--- a/api/VRPose.json
+++ b/api/VRPose.json
@@ -52,7 +52,8 @@
             "version_added": "6.0",
             "notes": "Google Cardboard supported in Samsung Internet 7.0."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -112,7 +113,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,7 +175,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -234,7 +237,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -295,7 +299,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -356,7 +361,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -417,7 +423,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VRStageParameters.json b/api/VRStageParameters.json
index 9cd715fcaa5448..673ea028f6185d 100644
--- a/api/VRStageParameters.json
+++ b/api/VRStageParameters.json
@@ -52,7 +52,8 @@
             "version_added": "6.0",
             "notes": "Google Cardboard supported in Samsung Internet 7.0."
           },
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -112,7 +113,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,7 +175,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -234,7 +237,8 @@
               "version_added": "6.0",
               "notes": "Google Cardboard supported in Samsung Internet 7.0."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VTTCue.json b/api/VTTCue.json
index 3365ab37945524..e07a4d1a1b3b25 100644
--- a/api/VTTCue.json
+++ b/api/VTTCue.json
@@ -36,7 +36,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,7 +47,7 @@
       },
       "VTTCue": {
         "__compat": {
-          "description": "<code>VTTCue()</code> constructor",
+          "description": "`VTTCue()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VTTCue/VTTCue",
           "spec_url": "https://w3c.github.io/webvtt/#dom-vttcue-vttcue",
           "support": {
@@ -70,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,7 +158,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,7 +199,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,7 +219,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/633690"
+              "impl_url": "https://crbug.com/41267398"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -233,7 +238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -273,7 +279,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -292,7 +299,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/633690"
+              "impl_url": "https://crbug.com/41267398"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -311,7 +318,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -345,7 +353,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -385,7 +394,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -425,7 +435,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -470,7 +481,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -502,7 +514,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -539,7 +552,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VTTRegion.json b/api/VTTRegion.json
index c268474c273086..27b4acb4d0a154 100644
--- a/api/VTTRegion.json
+++ b/api/VTTRegion.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "VTTRegion": {
         "__compat": {
-          "description": "<code>VTTRegion()</code> constructor",
+          "description": "`VTTRegion()` constructor",
           "spec_url": "https://w3c.github.io/webvtt/#dom-vttregion-vttregion",
           "tags": [
             "web-features:webvtt-regions"
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,7 +102,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -133,7 +136,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -169,7 +173,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -205,7 +210,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -241,7 +247,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -277,7 +284,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -313,7 +321,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -349,7 +358,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ValidityState.json b/api/ValidityState.json
index 6388555bf569b6..4193c21196dc92 100644
--- a/api/ValidityState.json
+++ b/api/ValidityState.json
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -78,7 +79,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,7 +127,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -172,7 +175,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -219,7 +223,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -266,7 +271,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -313,7 +319,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -364,7 +371,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -407,7 +415,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "67"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -454,7 +463,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -501,7 +511,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -548,7 +559,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VideoColorSpace.json b/api/VideoColorSpace.json
index dd21d6a535878f..3f93a28fcbea53 100644
--- a/api/VideoColorSpace.json
+++ b/api/VideoColorSpace.json
@@ -14,11 +14,11 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": "preview",
-            "partial_implementation": true,
-            "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+            "version_added": "130"
+          },
+          "firefox_android": {
+            "version_added": false
           },
-          "firefox_android": "mirror",
           "ie": {
             "version_added": false
           },
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -40,7 +41,7 @@
       },
       "VideoColorSpace": {
         "__compat": {
-          "description": "<code>VideoColorSpace()</code> constructor",
+          "description": "`VideoColorSpace()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoColorSpace/VideoColorSpace",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-videocolorspace-videocolorspace",
           "tags": [
@@ -53,11 +54,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -92,11 +94,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,11 +134,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -147,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -170,11 +174,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -186,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -209,11 +214,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -225,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -248,11 +254,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -264,7 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VideoDecoder.json b/api/VideoDecoder.json
index edd0f3544fa94e..688b6f5b54cf23 100644
--- a/api/VideoDecoder.json
+++ b/api/VideoDecoder.json
@@ -14,12 +14,11 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": "preview",
-            "impl_url": "https://bugzil.la/1749045",
-            "partial_implementation": true,
-            "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+            "version_added": "130"
+          },
+          "firefox_android": {
+            "version_added": false
           },
-          "firefox_android": "mirror",
           "ie": {
             "version_added": false
           },
@@ -31,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +41,7 @@
       },
       "VideoDecoder": {
         "__compat": {
-          "description": "<code>VideoDecoder()</code> constructor",
+          "description": "`VideoDecoder()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoDecoder/VideoDecoder",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-videodecoder-videodecoder",
           "tags": [
@@ -54,12 +54,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -71,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -94,12 +94,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -111,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,12 +134,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -151,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,12 +174,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -191,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,12 +214,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -231,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -242,7 +242,7 @@
       },
       "dequeue_event": {
         "__compat": {
-          "description": "<code>dequeue</code> event",
+          "description": "`dequeue` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoDecoder/dequeue_event",
           "spec_url": "https://w3c.github.io/webcodecs/#eventdef-videodecoder-dequeue",
           "tags": [
@@ -255,12 +255,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -272,7 +271,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -295,12 +295,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -312,7 +311,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -323,7 +323,7 @@
       },
       "isConfigSupported_static": {
         "__compat": {
-          "description": "<code>isConfigSupported()</code> static method",
+          "description": "`isConfigSupported()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoDecoder/isConfigSupported_static",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-videodecoder-isconfigsupported",
           "tags": [
@@ -336,12 +336,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -353,7 +352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -376,12 +376,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -393,7 +392,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -416,12 +416,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749045",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -433,7 +432,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VideoEncoder.json b/api/VideoEncoder.json
index f96ddb3e634a01..04189242693318 100644
--- a/api/VideoEncoder.json
+++ b/api/VideoEncoder.json
@@ -14,12 +14,11 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": "preview",
-            "impl_url": "https://bugzil.la/1872733",
-            "partial_implementation": true,
-            "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+            "version_added": "130"
+          },
+          "firefox_android": {
+            "version_added": false
           },
-          "firefox_android": "mirror",
           "ie": {
             "version_added": false
           },
@@ -31,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +41,7 @@
       },
       "VideoEncoder": {
         "__compat": {
-          "description": "<code>VideoEncoder()</code> constructor",
+          "description": "`VideoEncoder()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoEncoder/VideoEncoder",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-videoencoder-videoencoder",
           "tags": [
@@ -54,12 +54,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -71,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -94,12 +94,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -111,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,12 +134,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -151,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -162,7 +162,7 @@
       },
       "dequeue_event": {
         "__compat": {
-          "description": "<code>dequeue</code> event",
+          "description": "`dequeue` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoEncoder/dequeue_event",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-videodecoder-ondequeue",
           "tags": [
@@ -175,12 +175,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -192,7 +191,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,12 +215,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -232,7 +231,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -255,12 +255,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -272,7 +271,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -295,12 +295,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -312,7 +311,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -323,7 +323,7 @@
       },
       "isConfigSupported_static": {
         "__compat": {
-          "description": "<code>isConfigSupported()</code> static method",
+          "description": "`isConfigSupported()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoEncoder/isConfigSupported_static",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-videoencoder-isconfigsupported",
           "tags": [
@@ -336,12 +336,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -353,7 +352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -376,12 +376,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -393,7 +392,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -416,12 +416,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1872733",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -433,7 +432,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VideoFrame.json b/api/VideoFrame.json
index 000b08575116de..02b445cd852052 100644
--- a/api/VideoFrame.json
+++ b/api/VideoFrame.json
@@ -14,12 +14,11 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": "preview",
-            "impl_url": "https://bugzil.la/1749539",
-            "partial_implementation": true,
-            "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+            "version_added": "130"
+          },
+          "firefox_android": {
+            "version_added": false
           },
-          "firefox_android": "mirror",
           "ie": {
             "version_added": false
           },
@@ -31,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +41,7 @@
       },
       "VideoFrame": {
         "__compat": {
-          "description": "<code>VideoFrame()</code> constructor",
+          "description": "`VideoFrame()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoFrame/VideoFrame",
           "spec_url": "https://w3c.github.io/webcodecs/#dom-videoframe-videoframe",
           "tags": [
@@ -54,12 +54,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -71,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -94,12 +94,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -111,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,12 +134,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -151,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,12 +174,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -191,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -214,12 +214,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -231,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,12 +254,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -271,7 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -294,12 +294,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -311,7 +310,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -334,12 +334,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -351,7 +350,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -374,12 +374,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -391,7 +390,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -414,12 +414,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -431,7 +430,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -454,12 +454,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -471,7 +470,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -494,12 +494,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -511,7 +510,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -534,12 +534,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -551,7 +550,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -574,12 +574,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -591,7 +590,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -614,12 +614,11 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "preview",
-              "impl_url": "https://bugzil.la/1749539",
-              "partial_implementation": true,
-              "notes": "Only supported on Linux, see <a href='https://bugzil.la/1749047'>bug 1749047</a>."
+              "version_added": "130"
+            },
+            "firefox_android": {
+              "version_added": false
             },
-            "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
@@ -631,7 +630,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VideoPlaybackQuality.json b/api/VideoPlaybackQuality.json
index e0ecd2332ff33b..ecd9c65c8bfeef 100644
--- a/api/VideoPlaybackQuality.json
+++ b/api/VideoPlaybackQuality.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -71,7 +72,8 @@
               "version_added": "12.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -112,7 +114,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -153,7 +156,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -192,7 +196,8 @@
               "version_added": "12.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,7 +238,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VideoTrack.json b/api/VideoTrack.json
index 40a264adf73eee..c0f3cd394ad043 100644
--- a/api/VideoTrack.json
+++ b/api/VideoTrack.json
@@ -57,7 +57,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -122,7 +123,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -188,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +257,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -320,7 +324,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -386,7 +391,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -442,11 +448,13 @@
             },
             "safari_ios": {
               "version_added": "13",
+              "impl_url": "https://webkit.org/b/200147",
               "partial_implementation": true,
               "notes": "Exposed in Mobile Safari on iPad but not on iPhone."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/VideoTrackGenerator.json b/api/VideoTrackGenerator.json
index cdfcd06d44e781..426d6a830201c5 100644
--- a/api/VideoTrackGenerator.json
+++ b/api/VideoTrackGenerator.json
@@ -24,7 +24,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -34,7 +35,7 @@
       },
       "VideoTrackGenerator": {
         "__compat": {
-          "description": "<code>VideoTrackGenerator()</code> constructor",
+          "description": "`VideoTrackGenerator()` constructor",
           "spec_url": "https://w3c.github.io/mediacapture-transform/#dom-videotrackgenerator-videotrackgenerator",
           "support": {
             "chrome": {
@@ -57,7 +58,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -90,7 +92,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -123,7 +126,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -156,7 +160,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/VideoTrackList.json b/api/VideoTrackList.json
index fd0c48bb9c090a..c14cc2c7e6d54a 100644
--- a/api/VideoTrackList.json
+++ b/api/VideoTrackList.json
@@ -57,7 +57,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -67,7 +68,7 @@
       },
       "addtrack_event": {
         "__compat": {
-          "description": "<code>addtrack</code> event",
+          "description": "`addtrack` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoTrackList/addtrack_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-addtrack",
@@ -126,7 +127,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,7 +139,7 @@
       },
       "change_event": {
         "__compat": {
-          "description": "<code>change</code> event",
+          "description": "`change` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoTrackList/change_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-change",
@@ -196,7 +198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -328,7 +332,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -339,7 +344,7 @@
       },
       "removetrack_event": {
         "__compat": {
-          "description": "<code>removetrack</code> event",
+          "description": "`removetrack` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VideoTrackList/removetrack_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/media.html#event-media-removetrack",
@@ -398,7 +403,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -464,7 +470,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ViewTimeline.json b/api/ViewTimeline.json
index b8551e248cda02..c5ed15da5e2ecf 100644
--- a/api/ViewTimeline.json
+++ b/api/ViewTimeline.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,7 +41,7 @@
       },
       "ViewTimeline": {
         "__compat": {
-          "description": "<code>ViewTimeline()</code> constructor",
+          "description": "`ViewTimeline()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/ViewTimeline/ViewTimeline",
           "spec_url": "https://drafts.csswg.org/scroll-animations/#dom-viewtimeline-viewtimeline",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -186,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/ViewTransition.json b/api/ViewTransition.json
index 700a5c8ee10465..ffb6bf29bedcc8 100644
--- a/api/ViewTransition.json
+++ b/api/ViewTransition.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1823896"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -28,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -138,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,6 +155,9 @@
       "types": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#dom-viewtransition-types",
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -157,7 +165,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1860854"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -167,14 +176,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -208,7 +218,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/ViewTransitionTypeSet.json b/api/ViewTransitionTypeSet.json
index 59e31fc0e8fde2..985e4cbec87659 100644
--- a/api/ViewTransitionTypeSet.json
+++ b/api/ViewTransitionTypeSet.json
@@ -3,6 +3,9 @@
     "ViewTransitionTypeSet": {
       "__compat": {
         "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#viewtransitiontypeset",
+        "tags": [
+          "web-features:active-view-transition"
+        ],
         "support": {
           "chrome": {
             "version_added": "125"
@@ -10,7 +13,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1860854"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -20,20 +24,24 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": "18.2"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
-          "experimental": true,
+          "experimental": false,
           "standard_track": true,
           "deprecated": false
         }
       },
       "add": {
         "__compat": {
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -51,14 +59,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -66,6 +75,9 @@
       },
       "clear": {
         "__compat": {
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -83,14 +95,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -98,6 +111,9 @@
       },
       "delete": {
         "__compat": {
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -115,14 +131,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -130,6 +147,9 @@
       },
       "entries": {
         "__compat": {
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -147,14 +167,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -162,6 +183,9 @@
       },
       "forEach": {
         "__compat": {
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -179,14 +203,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -194,6 +219,9 @@
       },
       "has": {
         "__compat": {
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -211,14 +239,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -226,6 +255,9 @@
       },
       "keys": {
         "__compat": {
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -243,14 +275,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -258,6 +291,9 @@
       },
       "size": {
         "__compat": {
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -275,14 +311,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -290,6 +327,9 @@
       },
       "values": {
         "__compat": {
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -307,14 +347,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -323,6 +364,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -340,14 +384,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/api/VirtualKeyboard.json b/api/VirtualKeyboard.json
index 3a6be4ad895fe4..651e9a1b9c6be3 100644
--- a/api/VirtualKeyboard.json
+++ b/api/VirtualKeyboard.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/VirtualKeyboard",
         "spec_url": "https://w3c.github.io/virtual-keyboard/#the-virtualkeyboard-interface",
+        "tags": [
+          "web-features:virtual-keyboard"
+        ],
         "support": {
           "chrome": {
             "version_added": "94"
@@ -11,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1730568"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -21,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/230225"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VirtualKeyboard/boundingRect",
           "spec_url": "https://w3c.github.io/virtual-keyboard/#dom-virtualkeyboard-boundingrect",
+          "tags": [
+            "web-features:virtual-keyboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -58,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -69,9 +79,12 @@
       },
       "geometrychange_event": {
         "__compat": {
-          "description": "<code>geometrychange</code> event",
+          "description": "`geometrychange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VirtualKeyboard/geometrychange_event",
           "spec_url": "https://w3c.github.io/virtual-keyboard/#dom-virtualkeyboard-ongeometrychange",
+          "tags": [
+            "web-features:virtual-keyboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -93,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,6 +120,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VirtualKeyboard/hide",
           "spec_url": "https://w3c.github.io/virtual-keyboard/#dom-virtualkeyboard-hide",
+          "tags": [
+            "web-features:virtual-keyboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -127,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -140,6 +158,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VirtualKeyboard/overlaysContent",
           "spec_url": "https://w3c.github.io/virtual-keyboard/#dom-virtualkeyboard-overlayscontent",
+          "tags": [
+            "web-features:virtual-keyboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -161,7 +182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -174,6 +196,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VirtualKeyboard/show",
           "spec_url": "https://w3c.github.io/virtual-keyboard/#dom-virtualkeyboard-show",
+          "tags": [
+            "web-features:virtual-keyboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -195,7 +220,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/VisibilityStateEntry.json b/api/VisibilityStateEntry.json
index 0aa7a953e4d46f..267c67bed58d49 100644
--- a/api/VisibilityStateEntry.json
+++ b/api/VisibilityStateEntry.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/VisibilityStateEntry",
         "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#the-visibilitystateentry-interface",
+        "tags": [
+          "web-features:page-visibility-state"
+        ],
         "support": {
           "chrome": {
             "version_added": "115"
@@ -11,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1827127"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -21,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/255200"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -36,6 +42,9 @@
       "duration": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#visibilitystateentry-duration",
+          "tags": [
+            "web-features:page-visibility-state"
+          ],
           "support": {
             "chrome": {
               "version_added": "115"
@@ -57,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -69,6 +79,9 @@
       "entryType": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#visibilitystateentry-entrytype",
+          "tags": [
+            "web-features:page-visibility-state"
+          ],
           "support": {
             "chrome": {
               "version_added": "115"
@@ -90,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -102,6 +116,9 @@
       "name": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#visibilitystateentry-name",
+          "tags": [
+            "web-features:page-visibility-state"
+          ],
           "support": {
             "chrome": {
               "version_added": "115"
@@ -123,7 +140,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -135,6 +153,9 @@
       "startTime": {
         "__compat": {
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#visibilitystateentry-starttime",
+          "tags": [
+            "web-features:page-visibility-state"
+          ],
           "support": {
             "chrome": {
               "version_added": "115"
@@ -156,7 +177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/VisualViewport.json b/api/VisualViewport.json
index bf7c327bcd9f00..981874007ed6fc 100644
--- a/api/VisualViewport.json
+++ b/api/VisualViewport.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -146,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -185,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -224,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -235,7 +241,7 @@
       },
       "resize_event": {
         "__compat": {
-          "description": "<code>resize</code> event",
+          "description": "`resize` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VisualViewport/resize_event",
           "spec_url": "https://drafts.csswg.org/cssom-view/#eventdef-window-resize",
           "tags": [
@@ -249,7 +255,7 @@
               {
                 "version_added": "61",
                 "partial_implementation": true,
-                "notes": "The <code>onresize</code> event handler property is not supported."
+                "notes": "The `onresize` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -275,7 +281,8 @@
             "samsunginternet_android": {
               "version_added": "8.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,7 +321,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -325,7 +333,7 @@
       },
       "scroll_event": {
         "__compat": {
-          "description": "<code>scroll</code> event",
+          "description": "`scroll` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/VisualViewport/scroll_event",
           "spec_url": "https://drafts.csswg.org/cssom-view/#eventdef-document-scroll",
           "tags": [
@@ -339,7 +347,7 @@
               {
                 "version_added": "61",
                 "partial_implementation": true,
-                "notes": "The <code>onscroll</code> event handler property is not supported."
+                "notes": "The `onscroll` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -365,7 +373,8 @@
             "samsunginternet_android": {
               "version_added": "8.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -376,7 +385,8 @@
       },
       "scrollend_event": {
         "__compat": {
-          "description": "<code>scrollend</code> event",
+          "description": "`scrollend` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/VisualViewport/scrollend_event",
           "spec_url": "https://drafts.csswg.org/cssom-view/#eventdef-document-scrollend",
           "tags": [
             "web-features:scrollend"
@@ -389,7 +399,7 @@
               {
                 "version_added": "114",
                 "partial_implementation": true,
-                "notes": "The <code>onscrollend</code> event handler property is not supported. See <a href='https://crbug.com/325307785'>bug 325307785</a>."
+                "notes": "The `onscrollend` event handler property is not supported. See [bug 325307785](https://crbug.com/325307785)."
               }
             ],
             "chrome_android": "mirror",
@@ -411,7 +421,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -450,7 +461,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WEBGL_color_buffer_float.json b/api/WEBGL_color_buffer_float.json
index acb552a04c488e..4a88afd6ab8c64 100644
--- a/api/WEBGL_color_buffer_float.json
+++ b/api/WEBGL_color_buffer_float.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_color_buffer_float",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_color_buffer_float/",
+        "tags": [
+          "web-features:webgl-color-buffer-float"
+        ],
         "support": {
           "chrome": {
             "version_added": "63"
@@ -29,7 +32,8 @@
             "version_added": "15"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WEBGL_compressed_texture_astc.json b/api/WEBGL_compressed_texture_astc.json
index e5b2cf4fa59c86..ad703b8e8bdce3 100644
--- a/api/WEBGL_compressed_texture_astc.json
+++ b/api/WEBGL_compressed_texture_astc.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_astc",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_astc/",
+        "tags": [
+          "web-features:webgl-compressed-texture-astc"
+        ],
         "support": {
           "chrome": {
             "version_added": "47"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_astc/getSupportedProfiles",
           "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_astc/",
+          "tags": [
+            "web-features:webgl-compressed-texture-astc"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WEBGL_compressed_texture_etc.json b/api/WEBGL_compressed_texture_etc.json
index 6fa4b7bdbf3308..e75125bdc25f38 100644
--- a/api/WEBGL_compressed_texture_etc.json
+++ b/api/WEBGL_compressed_texture_etc.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_etc",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_etc/",
+        "tags": [
+          "web-features:webgl-compressed-texture-etc"
+        ],
         "support": {
           "chrome": {
             "version_added": "63"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WEBGL_compressed_texture_etc1.json b/api/WEBGL_compressed_texture_etc1.json
index cc0745f2c0a40f..3deec3600960ad 100644
--- a/api/WEBGL_compressed_texture_etc1.json
+++ b/api/WEBGL_compressed_texture_etc1.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_etc1",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_etc1/",
+        "tags": [
+          "web-features:webgl-compressed-texture-etc1"
+        ],
         "support": {
           "chrome": {
             "version_added": "49"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WEBGL_compressed_texture_pvrtc.json b/api/WEBGL_compressed_texture_pvrtc.json
index c7bd59085f1f68..0f3e741a0df39f 100644
--- a/api/WEBGL_compressed_texture_pvrtc.json
+++ b/api/WEBGL_compressed_texture_pvrtc.json
@@ -4,9 +4,12 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_pvrtc",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_pvrtc/",
+        "tags": [
+          "web-features:webgl-compressed-texture-pvrtc"
+        ],
         "support": {
           "chrome": {
-            "version_added": false
+            "version_added": "128"
           },
           "chrome_android": {
             "version_added": "28"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WEBGL_compressed_texture_s3tc.json b/api/WEBGL_compressed_texture_s3tc.json
index 189e1440d47125..b2c10771dc4b38 100644
--- a/api/WEBGL_compressed_texture_s3tc.json
+++ b/api/WEBGL_compressed_texture_s3tc.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_s3tc",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_s3tc/",
+        "tags": [
+          "web-features:webgl-compressed-texture-s3tc"
+        ],
         "support": {
           "chrome": [
             {
@@ -47,7 +50,8 @@
             "version_added": false
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WEBGL_compressed_texture_s3tc_srgb.json b/api/WEBGL_compressed_texture_s3tc_srgb.json
index 4f4ff336159482..fe5756fa2582e0 100644
--- a/api/WEBGL_compressed_texture_s3tc_srgb.json
+++ b/api/WEBGL_compressed_texture_s3tc_srgb.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_s3tc_srgb",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_s3tc_srgb/",
+        "tags": [
+          "web-features:webgl-compressed-texture-s3tc-srgb"
+        ],
         "support": {
           "chrome": {
             "version_added": "60"
@@ -29,7 +32,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
diff --git a/api/WEBGL_debug_renderer_info.json b/api/WEBGL_debug_renderer_info.json
index 88fb50ee1d7104..743c818b61ad2a 100644
--- a/api/WEBGL_debug_renderer_info.json
+++ b/api/WEBGL_debug_renderer_info.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_debug_renderer_info",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_debug_renderer_info/",
+        "tags": [
+          "web-features:webgl-debug-renderer-info"
+        ],
         "support": {
           "chrome": {
             "version_added": "33"
@@ -14,7 +17,7 @@
           },
           "firefox": {
             "version_added": "53",
-            "notes": "Deprecated, and may be removed in a future release (see <a href='https://bugzil.la/1722782'>bug 1722782</a>)."
+            "notes": "Deprecated, and may be removed in a future release (see [bug 1722782](https://bugzil.la/1722782))."
           },
           "firefox_android": "mirror",
           "ie": {
@@ -30,7 +33,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WEBGL_debug_shaders.json b/api/WEBGL_debug_shaders.json
index 7e729c8490fa3b..81a4ae3eac02ad 100644
--- a/api/WEBGL_debug_shaders.json
+++ b/api/WEBGL_debug_shaders.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_debug_shaders",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_debug_shaders/",
+        "tags": [
+          "web-features:webgl-debug-shaders"
+        ],
         "support": {
           "chrome": {
             "version_added": "47"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_debug_shaders/getTranslatedShaderSource",
           "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_debug_shaders/",
+          "tags": [
+            "web-features:webgl-debug-shaders"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WEBGL_depth_texture.json b/api/WEBGL_depth_texture.json
index ea80fd46eb6314..a283bfdd09ad27 100644
--- a/api/WEBGL_depth_texture.json
+++ b/api/WEBGL_depth_texture.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_depth_texture",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_depth_texture/",
+        "tags": [
+          "web-features:webgl-depth-texture"
+        ],
         "support": {
           "chrome": [
             {
@@ -40,7 +43,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WEBGL_draw_buffers.json b/api/WEBGL_draw_buffers.json
index 8093459a089c17..8355ae0ccb2a0c 100644
--- a/api/WEBGL_draw_buffers.json
+++ b/api/WEBGL_draw_buffers.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_draw_buffers",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_draw_buffers/",
+        "tags": [
+          "web-features:webgl-draw-buffers"
+        ],
         "support": {
           "chrome": {
             "version_added": "36"
@@ -33,7 +36,8 @@
             "version_added": "15"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_draw_buffers/drawBuffersWEBGL",
           "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_draw_buffers/",
+          "tags": [
+            "web-features:webgl-draw-buffers"
+          ],
           "support": {
             "chrome": {
               "version_added": "36"
@@ -74,7 +81,8 @@
               "version_added": "15"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WEBGL_lose_context.json b/api/WEBGL_lose_context.json
index f6d8475e0cd9fc..80cb7400dbf375 100644
--- a/api/WEBGL_lose_context.json
+++ b/api/WEBGL_lose_context.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_lose_context",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_lose_context/",
+        "tags": [
+          "web-features:webgl-lose-context"
+        ],
         "support": {
           "chrome": [
             {
@@ -48,7 +51,8 @@
               "prefix": "WEBKIT_",
               "version_added": "≤37"
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -60,6 +64,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_lose_context/loseContext",
           "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_lose_context/",
+          "tags": [
+            "web-features:webgl-lose-context"
+          ],
           "support": {
             "chrome": {
               "version_added": "26"
@@ -90,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,6 +111,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_lose_context/restoreContext",
           "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_lose_context/",
+          "tags": [
+            "web-features:webgl-lose-context"
+          ],
           "support": {
             "chrome": {
               "version_added": "26"
@@ -133,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WEBGL_multi_draw.json b/api/WEBGL_multi_draw.json
index ffda7143e58517..ccf09b5c236046 100644
--- a/api/WEBGL_multi_draw.json
+++ b/api/WEBGL_multi_draw.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw",
         "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_multi_draw/",
+        "tags": [
+          "web-features:webgl-multi-draw"
+        ],
         "support": {
           "chrome": {
             "version_added": "86"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawArraysInstancedWEBGL",
           "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_multi_draw/",
+          "tags": [
+            "web-features:webgl-multi-draw"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawArraysWEBGL",
           "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_multi_draw/",
+          "tags": [
+            "web-features:webgl-multi-draw"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawElementsInstancedWEBGL",
           "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_multi_draw/",
+          "tags": [
+            "web-features:webgl-multi-draw"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WEBGL_multi_draw/multiDrawElementsWEBGL",
           "spec_url": "https://registry.khronos.org/webgl/extensions/WEBGL_multi_draw/",
+          "tags": [
+            "web-features:webgl-multi-draw"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -170,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WGSLLanguageFeatures.json b/api/WGSLLanguageFeatures.json
index 91f7b8273cb8e0..0489461c2e09a8 100644
--- a/api/WGSLLanguageFeatures.json
+++ b/api/WGSLLanguageFeatures.json
@@ -13,7 +13,7 @@
             "notes": "Currently supported on ChromeOS, macOS, and Windows only."
           },
           "chrome_android": {
-            "version_added": false
+            "version_added": "121"
           },
           "edge": "mirror",
           "firefox": {
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -47,10 +48,11 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "115"
+              "version_added": "115",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "121"
             },
             "edge": "mirror",
             "firefox": {
@@ -68,7 +70,123 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "extension_packed_4x8_integer_dot_product": {
+        "__compat": {
+          "description": "<code>packed_4x8_integer_dot_product</code> extension",
+          "spec_url": "https://gpuweb.github.io/gpuweb/wgsl/#language_extension-packed_4x8_integer_dot_product",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "123"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "extension_readonly_and_readwrite_storage_textures": {
+        "__compat": {
+          "description": "<code>readonly_and_readwrite_storage_textures</code> extension",
+          "spec_url": "https://gpuweb.github.io/gpuweb/wgsl/#language_extension-readonly_and_readwrite_storage_textures",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "124"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "extension_unrestricted_pointer_parameters": {
+        "__compat": {
+          "description": "<code>unrestricted_pointer_parameters</code> extension",
+          "spec_url": "https://gpuweb.github.io/gpuweb/wgsl/#language_extension-unrestricted_pointer_parameters",
+          "tags": [
+            "web-features:webgpu"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "123",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -85,10 +203,11 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "115"
+              "version_added": "115",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "121"
             },
             "edge": "mirror",
             "firefox": {
@@ -106,7 +225,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -123,10 +243,11 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "115"
+              "version_added": "115",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "121"
             },
             "edge": "mirror",
             "firefox": {
@@ -144,7 +265,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -161,10 +283,11 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "115"
+              "version_added": "115",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "121"
             },
             "edge": "mirror",
             "firefox": {
@@ -182,7 +305,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -199,10 +323,11 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "115"
+              "version_added": "115",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "121"
             },
             "edge": "mirror",
             "firefox": {
@@ -220,7 +345,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -237,10 +363,11 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "115"
+              "version_added": "115",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "121"
             },
             "edge": "mirror",
             "firefox": {
@@ -258,7 +385,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -276,10 +404,11 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "115"
+              "version_added": "115",
+              "notes": "Currently supported on ChromeOS, macOS, and Windows only."
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "121"
             },
             "edge": "mirror",
             "firefox": {
@@ -297,7 +426,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WakeLock.json b/api/WakeLock.json
index f73e32635b73e0..41e258c4ea9f8d 100644
--- a/api/WakeLock.json
+++ b/api/WakeLock.json
@@ -28,11 +28,11 @@
           },
           "safari_ios": {
             "version_added": "16.4",
-            "partial_implementation": true,
-            "notes": "Does not work in standalone Home Screen Web Apps. See <a href='https://webkit.org/b/254545#c32'>bug 254545</a>."
+            "notes": "Does not work in standalone Home Screen Web Apps. See [bug 254545](https://webkit.org/b/254545#c32)."
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -69,10 +69,11 @@
             "safari_ios": {
               "version_added": "16.4",
               "partial_implementation": true,
-              "notes": "Does not work in standalone Home Screen Web Apps. See <a href='https://webkit.org/b/254545#c32'>bug 254545</a>."
+              "notes": "Does not work in standalone Home Screen Web Apps. See [bug 254545](https://webkit.org/b/254545#c32)."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WakeLockSentinel.json b/api/WakeLockSentinel.json
index 27d4df26d734d6..e9cec6ec7420fc 100644
--- a/api/WakeLockSentinel.json
+++ b/api/WakeLockSentinel.json
@@ -29,10 +29,11 @@
           "safari_ios": {
             "version_added": "16.4",
             "partial_implementation": true,
-            "notes": "Does not work in standalone Home Screen Web Apps. See <a href='https://webkit.org/b/254545#c32'>bug 254545</a>."
+            "notes": "Does not work in standalone Home Screen Web Apps. See [bug 254545](https://webkit.org/b/254545#c32)."
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -69,10 +70,11 @@
             "safari_ios": {
               "version_added": "16.4",
               "partial_implementation": true,
-              "notes": "Does not work in standalone Home Screen Web Apps. See <a href='https://webkit.org/b/254545#c32'>bug 254545</a>."
+              "notes": "Does not work in standalone Home Screen Web Apps. See [bug 254545](https://webkit.org/b/254545#c32)."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,7 +85,7 @@
       },
       "release_event": {
         "__compat": {
-          "description": "<code>release</code> event",
+          "description": "`release` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WakeLockSentinel/release_event",
           "spec_url": "https://w3c.github.io/screen-wake-lock/#the-onrelease-attribute",
           "tags": [
@@ -111,10 +113,11 @@
             "safari_ios": {
               "version_added": "16.4",
               "partial_implementation": true,
-              "notes": "Does not work in standalone Home Screen Web Apps. See <a href='https://webkit.org/b/254545#c32'>bug 254545</a>."
+              "notes": "Does not work in standalone Home Screen Web Apps. See [bug 254545](https://webkit.org/b/254545#c32)."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -152,10 +155,11 @@
             "safari_ios": {
               "version_added": "16.4",
               "partial_implementation": true,
-              "notes": "Does not work in standalone Home Screen Web Apps. See <a href='https://webkit.org/b/254545#c32'>bug 254545</a>."
+              "notes": "Does not work in standalone Home Screen Web Apps. See [bug 254545](https://webkit.org/b/254545#c32)."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -193,10 +197,11 @@
             "safari_ios": {
               "version_added": "16.4",
               "partial_implementation": true,
-              "notes": "Does not work in standalone Home Screen Web Apps. See <a href='https://webkit.org/b/254545#c32'>bug 254545</a>."
+              "notes": "Does not work in standalone Home Screen Web Apps. See [bug 254545](https://webkit.org/b/254545#c32)."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WaveShaperNode.json b/api/WaveShaperNode.json
index 2385d651b7f4c9..01c47ed03cfb45 100644
--- a/api/WaveShaperNode.json
+++ b/api/WaveShaperNode.json
@@ -32,7 +32,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -42,7 +43,7 @@
       },
       "WaveShaperNode": {
         "__compat": {
-          "description": "<code>WaveShaperNode()</code> constructor",
+          "description": "`WaveShaperNode()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WaveShaperNode/WaveShaperNode",
           "spec_url": "https://webaudio.github.io/web-audio-api/#dom-waveshapernode-waveshapernode",
           "tags": [
@@ -69,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +112,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,7 +154,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebGL2RenderingContext.json b/api/WebGL2RenderingContext.json
index 099c6e9c4e4150..27d76d10419e92 100644
--- a/api/WebGL2RenderingContext.json
+++ b/api/WebGL2RenderingContext.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7",
+        "tags": [
+          "web-features:webgl2"
+        ],
         "support": {
           "chrome": {
             "version_added": "56"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/activeTexture",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/attachShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/beginQuery",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.12",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/beginTransformFeedback",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -170,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -183,6 +203,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindAttribLocation",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -206,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -222,6 +246,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.1"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -245,7 +272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -258,6 +286,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindBufferBase",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.16",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -281,7 +312,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -294,6 +326,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindBufferRange",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.16",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -317,7 +352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -333,6 +369,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.1"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -356,7 +395,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -369,6 +409,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindRenderbuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -392,7 +435,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -405,6 +449,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindSampler",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.13",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -428,7 +475,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -444,6 +492,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.1"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -467,7 +518,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -480,6 +532,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindTransformFeedback",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -503,7 +558,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -516,6 +572,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindVertexArray",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.17",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -539,7 +598,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -552,6 +612,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendColor",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -575,7 +638,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -588,6 +652,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendEquation",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -611,7 +678,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -624,6 +692,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendEquationSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -647,7 +718,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -660,6 +732,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendFunc",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -683,7 +758,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -696,6 +772,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendFuncSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -719,7 +798,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -732,6 +812,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/blitFramebuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.4",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -755,7 +838,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -768,6 +852,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bufferData",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -791,7 +878,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -801,7 +889,10 @@
         },
         "srcData_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>srcData</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`srcData` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -823,7 +914,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -837,6 +929,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bufferSubData",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -860,7 +955,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -870,7 +966,10 @@
         },
         "srcData_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>srcData</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`srcData` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -892,7 +991,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -906,6 +1006,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/canvas",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-canvas",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -929,7 +1032,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -945,6 +1049,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.4"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -968,7 +1075,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -981,6 +1089,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clear",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1004,7 +1115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1017,6 +1129,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1040,7 +1155,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1053,6 +1169,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1076,7 +1195,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1086,7 +1206,10 @@
         },
         "values_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>values</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`values` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -1108,7 +1231,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1122,6 +1246,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1145,7 +1272,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1155,7 +1283,10 @@
         },
         "values_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>values</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`values` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -1177,7 +1308,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1191,6 +1323,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1214,7 +1349,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1224,7 +1360,10 @@
         },
         "values_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>values</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`values` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -1246,7 +1385,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1260,6 +1400,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearColor",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1283,7 +1426,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1296,6 +1440,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearDepth",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1319,7 +1466,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1332,6 +1480,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearStencil",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1355,7 +1506,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1368,6 +1520,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clientWaitSync",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.14",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1391,7 +1546,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1404,6 +1560,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/colorMask",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1427,7 +1586,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1440,6 +1600,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compileShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1463,7 +1626,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1476,6 +1640,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexImage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#COMPRESSEDTEXIMAGE2D",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1499,7 +1666,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1509,7 +1677,10 @@
         },
         "pixels_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>pixels</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`pixels` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -1531,7 +1702,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1545,6 +1717,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexImage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1568,7 +1743,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1578,7 +1754,10 @@
         },
         "pixels_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>pixels</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`pixels` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -1600,7 +1779,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1614,6 +1794,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexSubImage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#COMPRESSEDTEXSUBIMAGE2D",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1637,7 +1820,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1647,7 +1831,10 @@
         },
         "srcData_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>srcData</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`srcData` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -1669,7 +1856,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1683,6 +1871,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/compressedTexSubImage3D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1706,7 +1897,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1719,6 +1911,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/copyBufferSubData",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1742,7 +1937,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1755,6 +1951,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/copyTexImage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1778,7 +1977,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1791,6 +1991,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/copyTexSubImage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1814,7 +2017,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1827,6 +2031,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/copyTexSubImage3D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1850,7 +2057,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1863,6 +2071,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1886,7 +2097,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1899,6 +2111,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createFramebuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1922,7 +2137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1935,6 +2151,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1958,7 +2177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1971,6 +2191,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createQuery",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.12",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -1994,7 +2217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2007,6 +2231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createRenderbuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2030,7 +2257,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2043,6 +2271,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createSampler",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.13",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2066,7 +2297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2079,6 +2311,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2102,7 +2337,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2115,6 +2351,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createTexture",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2138,7 +2377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2151,6 +2391,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createTransformFeedback",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2174,7 +2417,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2187,6 +2431,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createVertexArray",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.17",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2210,7 +2457,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2223,6 +2471,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/cullFace",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2246,7 +2497,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2259,6 +2511,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2282,7 +2537,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2295,6 +2551,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteFramebuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2318,7 +2577,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2331,6 +2591,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2354,7 +2617,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2367,6 +2631,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteQuery",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.12",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2390,7 +2657,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2403,6 +2671,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteRenderbuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2426,7 +2697,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2439,6 +2711,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteSampler",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.13",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2462,7 +2737,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2475,6 +2751,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2498,7 +2777,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2511,6 +2791,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteSync",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.13",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2534,7 +2817,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2547,6 +2831,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteTexture",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2570,7 +2857,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2583,6 +2871,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteTransformFeedback",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2606,7 +2897,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2619,6 +2911,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteVertexArray",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.17",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2642,7 +2937,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2655,6 +2951,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthFunc",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2678,7 +2977,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2691,6 +2991,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthMask",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2714,7 +3017,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2727,6 +3031,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthRange",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2750,7 +3057,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2763,6 +3071,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/detachShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2786,7 +3097,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2799,6 +3111,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/disable",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2822,7 +3137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2835,6 +3151,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/disableVertexAttribArray",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2858,7 +3177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2871,6 +3191,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawArrays",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2894,7 +3217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2907,6 +3231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawArraysInstanced",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2930,7 +3257,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2943,6 +3271,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawBuffers",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -2966,7 +3297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2979,6 +3311,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawElements",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3002,7 +3337,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3015,6 +3351,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawElementsInstanced",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3038,7 +3377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3051,18 +3391,26 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferColorSpace",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-drawingBufferColorSpace",
+          "tags": [
+            "web-features:webgl2-color-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "104"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
-            "firefox": {
-              "version_added": "127",
-              "version_removed": "130",
-              "partial_implementation": true,
-              "notes": "Accidental early exposure with no functionality."
-            },
+            "firefox": [
+              {
+                "version_added": "132"
+              },
+              {
+                "version_added": "127",
+                "version_removed": "130",
+                "partial_implementation": true,
+                "notes": "Accidental early exposure with no functionality."
+              }
+            ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
@@ -3075,7 +3423,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3087,6 +3436,9 @@
       "drawingBufferFormat": {
         "__compat": {
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.1",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "122"
@@ -3108,7 +3460,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3121,6 +3474,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferHeight",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-drawingBufferHeight",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3144,7 +3500,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3156,6 +3513,9 @@
       "drawingBufferStorage": {
         "__compat": {
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#2.2",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "122"
@@ -3177,7 +3537,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3190,6 +3551,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferWidth",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-drawingBufferWidth",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3213,7 +3577,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3226,6 +3591,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawRangeElements",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3249,7 +3617,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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             "experimental": false,
@@ -3262,6 +3631,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/enable",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3285,7 +3657,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3298,6 +3671,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/enableVertexAttribArray",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3321,7 +3697,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3334,6 +3711,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/endQuery",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.12",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3357,7 +3737,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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             "experimental": false,
@@ -3370,6 +3751,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/endTransformFeedback",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3393,7 +3777,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3406,6 +3791,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/fenceSync",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.14",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3429,7 +3817,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3442,6 +3831,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/finish",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3465,7 +3857,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3478,6 +3871,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/flush",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3501,7 +3897,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3514,6 +3911,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/framebufferRenderbuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3537,7 +3937,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3550,6 +3951,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/framebufferTexture2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3573,7 +3977,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3586,6 +3991,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/framebufferTextureLayer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.4",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3609,7 +4017,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3622,6 +4031,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/frontFace",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3645,7 +4057,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3658,6 +4071,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/generateMipmap",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3681,7 +4097,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3694,6 +4111,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getActiveAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3717,7 +4137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3730,6 +4151,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getActiveUniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3753,7 +4177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3766,6 +4191,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniformBlockName",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.16",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3789,7 +4217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3802,6 +4231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniformBlockParameter",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.16",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3825,7 +4257,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3838,6 +4271,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniforms",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.16",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3861,7 +4297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -3874,6 +4311,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getAttachedShaders",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3897,7 +4337,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3910,6 +4351,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getAttribLocation",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3933,7 +4377,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3949,6 +4394,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.3"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -3972,7 +4420,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3985,6 +4434,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getBufferSubData",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4008,7 +4460,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4018,7 +4471,10 @@
         },
         "dstData_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>dstData</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`dstData` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -4040,7 +4496,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
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@@ -4054,6 +4511,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getContextAttributes",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.2",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4077,7 +4537,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4090,6 +4551,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getError",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4113,7 +4577,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -4126,6 +4591,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getExtension",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.14",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4149,7 +4617,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4162,6 +4631,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getFragDataLocation",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.7",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4185,7 +4657,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4201,6 +4674,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.4"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4224,7 +4700,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4237,6 +4714,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getIndexedParameter",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.2",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4260,7 +4740,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4273,6 +4754,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getInternalformatParameter",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.5",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4296,7 +4780,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4312,6 +4797,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.2"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4335,7 +4823,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4348,6 +4837,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getProgramInfoLog",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4371,7 +4863,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4387,6 +4880,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.7"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -4410,7 +4906,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -4423,6 +4920,9 @@
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.12",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -4446,7 +4946,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -4459,6 +4960,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.12",
+          "tags": [
+            "web-features:webgl2"
+          ],
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@@ -4482,7 +4986,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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@@ -4498,6 +5003,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.5"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -4521,7 +5029,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -4534,6 +5043,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.13",
+          "tags": [
+            "web-features:webgl2"
+          ],
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@@ -4557,7 +5069,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -4570,6 +5083,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
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@@ -4593,7 +5109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -4606,6 +5123,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
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@@ -4629,7 +5149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -4642,6 +5163,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
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@@ -4665,7 +5189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -4678,6 +5203,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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@@ -4701,7 +5229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -4714,6 +5243,9 @@
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.14",
+          "tags": [
+            "web-features:webgl2"
+          ],
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@@ -4737,7 +5269,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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@@ -4750,6 +5283,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.14",
+          "tags": [
+            "web-features:webgl2"
+          ],
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@@ -4773,7 +5309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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@@ -4789,6 +5326,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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@@ -4812,7 +5352,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -4825,6 +5366,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -4848,7 +5392,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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           },
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@@ -4864,6 +5409,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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@@ -4887,7 +5435,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -4900,6 +5449,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.16",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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@@ -4923,7 +5475,8 @@
             },
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             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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@@ -4936,6 +5489,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.16",
+          "tags": [
+            "web-features:webgl2"
+          ],
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@@ -4959,7 +5515,8 @@
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             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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@@ -4972,6 +5529,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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@@ -4995,7 +5555,8 @@
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             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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@@ -5011,6 +5572,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5034,7 +5598,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -5047,6 +5612,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5070,7 +5638,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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@@ -5083,6 +5652,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5106,7 +5678,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -5119,6 +5692,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.4",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5142,7 +5718,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -5155,6 +5732,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.4",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5178,7 +5758,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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@@ -5191,6 +5772,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5214,7 +5798,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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           },
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@@ -5227,6 +5812,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isContextLost",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.13",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5250,7 +5838,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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           },
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@@ -5266,6 +5855,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.2"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5289,7 +5881,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -5302,6 +5895,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5325,7 +5921,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -5338,6 +5935,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5361,7 +5961,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -5374,6 +5975,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.12",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5397,7 +6001,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -5410,6 +6015,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5433,7 +6041,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -5446,6 +6055,9 @@
         "__compat": {
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           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.13",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5469,7 +6081,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
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@@ -5482,6 +6095,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5505,7 +6121,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -5518,6 +6135,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isSync",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.14",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5541,7 +6161,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
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@@ -5554,6 +6175,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isTexture",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
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               "version_added": "56"
@@ -5577,7 +6201,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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@@ -5590,6 +6215,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isTransformFeedback",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5613,7 +6241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5626,6 +6255,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isVertexArray",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.17",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5649,7 +6281,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5660,7 +6293,11 @@
       },
       "lineWidth": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/lineWidth",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5684,7 +6321,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5697,6 +6335,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/linkProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5720,7 +6361,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5733,6 +6375,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/makeXRCompatible",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-webglrenderingcontextbase-makexrcompatible",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -5757,8 +6402,10 @@
               "version_added": "11.2"
             },
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40652382"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5771,6 +6418,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/pauseTransformFeedback",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5794,7 +6444,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5811,6 +6462,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#PIXEL_STORAGE_PARAMETERS",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.2"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5834,7 +6488,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5847,6 +6502,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/polygonOffset",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5870,7 +6528,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5883,6 +6542,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/readBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.4",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5906,7 +6568,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5919,6 +6582,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/readPixels",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.12",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -5942,7 +6608,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5952,7 +6619,10 @@
         },
         "pixels_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>pixels</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`pixels` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -5974,7 +6644,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5991,6 +6662,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.5"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6014,7 +6688,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6027,6 +6702,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/renderbufferStorageMultisample",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.5",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6050,7 +6728,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6063,6 +6742,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/resumeTransformFeedback",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6086,7 +6768,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6099,6 +6782,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/sampleCoverage",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6122,7 +6808,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6135,6 +6822,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/samplerParameter",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.13",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6158,7 +6848,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6171,6 +6862,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/samplerParameter",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.13",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6194,7 +6888,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6207,6 +6902,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/scissor",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.4",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6230,7 +6928,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6243,6 +6942,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/shaderSource",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6266,7 +6968,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6279,6 +6982,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilFunc",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6302,7 +7008,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6315,6 +7022,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilFuncSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6338,7 +7048,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6351,6 +7062,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilMask",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6374,7 +7088,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6387,6 +7102,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilMaskSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6410,7 +7128,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6423,6 +7142,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilOp",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6446,7 +7168,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6459,6 +7182,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilOpSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6482,7 +7208,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6498,6 +7225,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6509,7 +7239,11 @@
             "firefox": {
               "version_added": "51"
             },
-            "firefox_android": "mirror",
+            "firefox_android": {
+              "version_added": "51",
+              "partial_implementation": true,
+              "notes": "Textures from video elements are not supported. See [bug 1884282](https://bugzil.la/1884282)."
+            },
             "ie": {
               "version_added": false
             },
@@ -6521,7 +7255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6534,6 +7269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texImage3D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6557,7 +7295,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6567,7 +7306,10 @@
         },
         "srcData_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>srcData</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`srcData` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -6589,7 +7331,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6606,6 +7349,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6629,7 +7375,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6645,6 +7392,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6668,7 +7418,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6681,6 +7432,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texStorage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6704,7 +7458,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6717,6 +7472,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texStorage3D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6740,7 +7498,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6756,6 +7515,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#TEXSUBIMAGE2D",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6767,7 +7529,11 @@
             "firefox": {
               "version_added": "51"
             },
-            "firefox_android": "mirror",
+            "firefox_android": {
+              "version_added": "51",
+              "partial_implementation": true,
+              "notes": "Textures from video elements are not supported. See [bug 1884282](https://bugzil.la/1884282)."
+            },
             "ie": {
               "version_added": false
             },
@@ -6779,7 +7545,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6792,6 +7559,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texSubImage3D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6815,7 +7585,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6825,7 +7596,10 @@
         },
         "srcData_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>srcData</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`srcData` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -6847,7 +7621,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6861,6 +7636,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/transformFeedbackVaryings",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.15",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6884,7 +7662,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6897,6 +7676,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6920,7 +7702,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6933,6 +7716,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6956,7 +7742,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6969,6 +7756,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -6992,7 +7782,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7005,6 +7796,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7028,7 +7822,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7041,6 +7836,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7064,7 +7862,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7077,6 +7876,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7100,7 +7902,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7113,6 +7916,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7136,7 +7942,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7149,6 +7956,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7172,7 +7982,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7185,6 +7996,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7208,7 +8022,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7221,6 +8036,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7244,7 +8062,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7257,6 +8076,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7280,7 +8102,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7293,6 +8116,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7316,7 +8142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7329,6 +8156,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7352,7 +8182,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7365,6 +8196,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7388,7 +8222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7401,6 +8236,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7424,7 +8262,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7437,6 +8276,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7460,7 +8302,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7473,6 +8316,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7496,7 +8342,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7509,6 +8356,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7532,7 +8382,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7545,6 +8396,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7568,7 +8422,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7581,6 +8436,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7604,7 +8462,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7617,6 +8476,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7640,7 +8502,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7653,6 +8516,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7676,7 +8542,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7689,6 +8556,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7712,7 +8582,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7725,6 +8596,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7748,7 +8622,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7761,6 +8636,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformBlockBinding",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.16",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7784,7 +8662,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7797,6 +8676,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7820,7 +8702,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7830,7 +8713,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -7852,7 +8738,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7866,6 +8753,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7889,7 +8779,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7899,7 +8790,10 @@
         },
         "data_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>data</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`data` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -7921,7 +8815,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -7935,6 +8830,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -7958,7 +8856,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7968,7 +8867,10 @@
         },
         "data_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>data</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`data` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -7990,7 +8892,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8004,6 +8907,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8027,7 +8933,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8037,7 +8944,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8059,7 +8969,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8073,6 +8984,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8096,7 +9010,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8106,7 +9021,10 @@
         },
         "data_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>data</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`data` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8128,7 +9046,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8142,6 +9061,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8165,7 +9087,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8175,7 +9098,10 @@
         },
         "data_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>data</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`data` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8197,7 +9123,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8211,6 +9138,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8234,7 +9164,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8244,7 +9175,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8266,7 +9200,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8280,6 +9215,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8303,7 +9241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8313,7 +9252,10 @@
         },
         "data_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>data</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`data` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8335,7 +9277,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8349,6 +9292,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8372,7 +9318,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8382,7 +9329,10 @@
         },
         "data_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>data</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`data` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8404,7 +9354,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8416,7 +9367,11 @@
       },
       "unpackColorSpace": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/unpackColorSpace",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-unpackColorSpace",
+          "tags": [
+            "web-features:webgl2-color-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "104"
@@ -8424,7 +9379,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -8438,10 +9393,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -8451,6 +9407,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/useProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8474,7 +9433,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8487,6 +9447,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/validateProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8510,7 +9473,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8523,6 +9487,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8546,7 +9513,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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             "experimental": false,
@@ -8559,6 +9527,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8582,7 +9553,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8592,7 +9564,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8614,7 +9589,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8628,6 +9604,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8651,7 +9630,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8664,6 +9644,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8687,7 +9670,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8697,7 +9681,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8719,7 +9706,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8733,6 +9721,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8756,7 +9747,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8769,6 +9761,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8792,7 +9787,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8802,7 +9798,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8824,7 +9823,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8838,6 +9838,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8861,7 +9864,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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             "experimental": false,
@@ -8874,6 +9878,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8897,7 +9904,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -8907,7 +9915,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -8929,7 +9940,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -8943,6 +9955,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribDivisor",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.9",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -8966,7 +9981,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
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             "experimental": false,
@@ -8979,6 +9995,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -9002,7 +10021,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9015,6 +10035,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -9038,7 +10061,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9048,7 +10072,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -9070,7 +10097,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -9084,6 +10112,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -9107,7 +10138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9120,6 +10152,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -9143,7 +10178,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9153,7 +10189,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -9175,7 +10214,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -9189,6 +10229,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribIPointer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -9212,7 +10255,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9225,6 +10269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttribPointer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -9248,7 +10295,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9261,6 +10309,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/viewport",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.4",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -9284,7 +10335,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -9297,6 +10349,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/waitSync",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.14",
+          "tags": [
+            "web-features:webgl2"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -9320,7 +10375,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebGLActiveInfo.json b/api/WebGLActiveInfo.json
index 83a9cb26a52903..f0fea8118219db 100644
--- a/api/WebGLActiveInfo.json
+++ b/api/WebGLActiveInfo.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.11",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -80,6 +88,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo/name",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLActiveInfo-name",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -111,7 +122,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -124,6 +136,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo/size",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLActiveInfo-size",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -155,7 +170,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,6 +184,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo/type",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLActiveInfo-type",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -199,7 +218,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebGLBuffer.json b/api/WebGLBuffer.json
index 11afb6ae41a098..fbeec9b227673e 100644
--- a/api/WebGLBuffer.json
+++ b/api/WebGLBuffer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLBuffer",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.4",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebGLContextEvent.json b/api/WebGLContextEvent.json
index 9b3f69fa1cebbc..1f94ba077f8b19 100644
--- a/api/WebGLContextEvent.json
+++ b/api/WebGLContextEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLContextEvent",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.15",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "9"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,9 +49,12 @@
       },
       "WebGLContextEvent": {
         "__compat": {
-          "description": "<code>WebGLContextEvent()</code> constructor",
+          "description": "`WebGLContextEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLContextEvent/WebGLContextEvent",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.15",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "17"
@@ -75,7 +82,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -108,7 +119,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -121,6 +133,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLContextEvent/statusMessage",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.15.1",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -152,7 +167,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebGLFramebuffer.json b/api/WebGLFramebuffer.json
index 89548280131a65..74df816370c163 100644
--- a/api/WebGLFramebuffer.json
+++ b/api/WebGLFramebuffer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLFramebuffer",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.5",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebGLObject.json b/api/WebGLObject.json
index a18d4a83ab2b7d..7860c99427230d 100644
--- a/api/WebGLObject.json
+++ b/api/WebGLObject.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLObject",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.3",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "126"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
diff --git a/api/WebGLProgram.json b/api/WebGLProgram.json
index 030cb021b28bf5..796fa7f17982af 100644
--- a/api/WebGLProgram.json
+++ b/api/WebGLProgram.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLProgram",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.6",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebGLQuery.json b/api/WebGLQuery.json
index f9851046d1aaa0..2027046d4cd35e 100644
--- a/api/WebGLQuery.json
+++ b/api/WebGLQuery.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLQuery",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.2",
+        "tags": [
+          "web-features:webgl2"
+        ],
         "support": {
           "chrome": {
             "version_added": "56"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WebGLRenderbuffer.json b/api/WebGLRenderbuffer.json
index 45b75e9795306c..f9134c076499aa 100644
--- a/api/WebGLRenderbuffer.json
+++ b/api/WebGLRenderbuffer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderbuffer",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.7",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebGLRenderingContext.json b/api/WebGLRenderingContext.json
index cbee94792d349a..d7aacf423b24b6 100644
--- a/api/WebGLRenderingContext.json
+++ b/api/WebGLRenderingContext.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "9"
@@ -13,7 +16,7 @@
           },
           "edge": {
             "version_added": "12",
-            "notes": "To access the WebGL context, use <code>experimental-webgl</code> rather than the standard <code>webgl</code> identifier."
+            "notes": "To access the WebGL context, use `experimental-webgl` rather than the standard `webgl` identifier."
           },
           "firefox": {
             "version_added": "4"
@@ -21,7 +24,7 @@
           "firefox_android": "mirror",
           "ie": {
             "version_added": "11",
-            "notes": "To access the WebGL context, use <code>experimental-webgl</code> rather than the standard <code>webgl</code> identifier."
+            "notes": "To access the WebGL context, use `experimental-webgl` rather than the standard `webgl` identifier."
           },
           "oculus": "mirror",
           "opera": {
@@ -39,7 +42,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "4.4.3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -50,6 +54,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -84,6 +92,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/activeTexture",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -117,7 +128,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,6 +142,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/attachShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -163,7 +178,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,6 +192,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindAttribLocation",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -209,7 +228,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -225,6 +245,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.1"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -258,7 +281,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,6 +298,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.1"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -307,7 +334,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -320,6 +348,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindRenderbuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -353,7 +384,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -369,6 +401,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.1"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -402,7 +437,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -415,6 +451,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendColor",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -448,7 +487,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -461,6 +501,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendEquation",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -494,7 +537,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -507,6 +551,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendEquationSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -540,7 +587,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -553,6 +601,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendFunc",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -586,7 +637,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -599,6 +651,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendFuncSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -632,7 +687,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -645,6 +701,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bufferData",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -678,7 +737,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -691,6 +751,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bufferSubData",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -724,7 +787,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -737,6 +801,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/canvas",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-canvas",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -770,7 +837,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -786,6 +854,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.4"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -819,7 +890,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -832,6 +904,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clear",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -865,7 +940,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -878,6 +954,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearColor",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -911,7 +990,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -924,6 +1004,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearDepth",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -957,7 +1040,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -970,6 +1054,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearStencil",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1003,7 +1090,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1016,6 +1104,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/colorMask",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1049,7 +1140,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1062,6 +1154,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compileShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1095,7 +1190,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1108,6 +1204,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexImage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#COMPRESSEDTEXIMAGE2D",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1141,7 +1240,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1151,7 +1251,10 @@
         },
         "pixels_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>pixels</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`pixels` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -1175,7 +1278,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1189,6 +1293,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexSubImage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#COMPRESSEDTEXSUBIMAGE2D",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1222,7 +1329,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1235,6 +1343,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/copyTexImage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1268,7 +1379,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1281,6 +1393,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/copyTexSubImage2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1314,7 +1429,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1327,6 +1443,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1360,7 +1479,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1373,6 +1493,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createFramebuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1406,7 +1529,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1419,6 +1543,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1452,7 +1579,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1465,6 +1593,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createRenderbuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1498,7 +1629,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1511,6 +1643,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1544,7 +1679,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1557,6 +1693,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createTexture",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1590,7 +1729,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1603,6 +1743,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/cullFace",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1636,7 +1779,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1649,6 +1793,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1682,7 +1829,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1695,6 +1843,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteFramebuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1728,7 +1879,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1741,6 +1893,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1774,7 +1929,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1787,6 +1943,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteRenderbuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1820,7 +1979,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1833,6 +1993,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1866,7 +2029,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1879,6 +2043,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteTexture",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1912,7 +2079,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1925,6 +2093,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthFunc",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -1958,7 +2129,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1971,6 +2143,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthMask",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2004,7 +2179,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2017,6 +2193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthRange",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2050,7 +2229,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2063,6 +2243,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/detachShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2096,7 +2279,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2109,6 +2293,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/disable",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2142,7 +2329,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2155,6 +2343,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/disableVertexAttribArray",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2188,7 +2379,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2201,6 +2393,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawArrays",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2234,7 +2429,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2247,6 +2443,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawElements",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2280,7 +2479,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2293,18 +2493,26 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferColorSpace",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-drawingBufferColorSpace",
+          "tags": [
+            "web-features:webgl-color-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "104"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
-            "firefox": {
-              "version_added": "127",
-              "version_removed": "130",
-              "partial_implementation": true,
-              "notes": "Accidental early exposure with no functionality."
-            },
+            "firefox": [
+              {
+                "version_added": "132"
+              },
+              {
+                "version_added": "127",
+                "version_removed": "130",
+                "partial_implementation": true,
+                "notes": "Accidental early exposure with no functionality."
+              }
+            ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
@@ -2317,7 +2525,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2329,6 +2538,9 @@
       "drawingBufferFormat": {
         "__compat": {
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.1",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "122"
@@ -2350,7 +2562,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2363,6 +2576,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferHeight",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-drawingBufferHeight",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2396,7 +2612,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2408,6 +2625,9 @@
       "drawingBufferStorage": {
         "__compat": {
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#2.2",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "122"
@@ -2429,7 +2649,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2442,6 +2663,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferWidth",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-drawingBufferWidth",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2475,7 +2699,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2488,6 +2713,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/enable",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2521,7 +2749,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2534,6 +2763,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/enableVertexAttribArray",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2567,7 +2799,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2580,6 +2813,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/finish",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2613,7 +2849,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2626,6 +2863,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/flush",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.11",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2659,7 +2899,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2672,6 +2913,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/framebufferRenderbuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2705,7 +2949,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2718,6 +2963,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/framebufferTexture2D",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2751,7 +2999,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2764,6 +3013,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/frontFace",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2797,7 +3049,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2810,6 +3063,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/generateMipmap",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2843,7 +3099,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2856,6 +3113,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getActiveAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2889,7 +3149,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2902,6 +3163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getActiveUniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2935,7 +3199,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2948,6 +3213,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getAttachedShaders",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -2981,7 +3249,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2994,6 +3263,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getAttribLocation",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3027,7 +3299,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3043,6 +3316,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.3"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3076,7 +3352,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3089,6 +3366,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getContextAttributes",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.2",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3122,7 +3402,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3135,6 +3416,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getError",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3168,7 +3452,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -3181,6 +3466,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getExtension",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.14",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3214,7 +3502,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3230,6 +3519,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.4"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3263,7 +3555,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3279,6 +3572,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.2"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3312,7 +3608,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3325,6 +3622,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getProgramInfoLog",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3358,7 +3658,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3374,6 +3675,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.7"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3407,7 +3711,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3423,6 +3728,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.5"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3456,7 +3764,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3469,6 +3778,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderInfoLog",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3502,7 +3814,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3515,6 +3828,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderParameter",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3548,7 +3864,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -3561,6 +3878,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderPrecisionFormat",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
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               "version_added": "9"
@@ -3594,7 +3914,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -3607,6 +3928,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderSource",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3640,7 +3964,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -3653,6 +3978,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getSupportedExtensions",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.14",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
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               "version_added": "9"
@@ -3686,7 +4014,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3702,6 +4031,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3735,7 +4067,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3751,6 +4084,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3784,7 +4120,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -3797,6 +4134,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getUniformLocation",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3830,7 +4170,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -3846,6 +4187,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.8"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3879,7 +4223,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -3892,6 +4237,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getVertexAttribOffset",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3925,7 +4273,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -3938,6 +4287,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/hint",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -3971,7 +4323,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -3984,6 +4337,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isBuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.5",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4017,7 +4373,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4030,6 +4387,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isContextLost",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.13",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4063,7 +4423,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -4079,6 +4440,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.2"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4112,7 +4476,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4125,6 +4490,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isFramebuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.6",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4158,7 +4526,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4171,6 +4540,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4204,7 +4576,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4217,6 +4590,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isRenderbuffer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4250,7 +4626,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4263,6 +4640,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isShader",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4296,7 +4676,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4309,6 +4690,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isTexture",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4342,7 +4726,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4355,6 +4740,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/lineWidth",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4388,7 +4776,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4401,6 +4790,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/linkProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4434,7 +4826,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4447,6 +4840,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/makeXRCompatible",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-webglrenderingcontextbase-makexrcompatible",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -4475,8 +4871,10 @@
               "version_added": "11.2"
             },
             "webview_android": {
-              "version_added": false
-            }
+              "version_added": false,
+              "impl_url": "https://crbug.com/40652382"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4493,6 +4891,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#PIXEL_STORAGE_PARAMETERS",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.2"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4526,7 +4927,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4539,6 +4941,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/polygonOffset",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4572,7 +4977,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4585,6 +4991,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/readPixels",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.12",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4618,7 +5027,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
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@@ -4634,6 +5044,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.7",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.5"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4667,7 +5080,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4680,6 +5094,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/sampleCoverage",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4713,7 +5130,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
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@@ -4726,6 +5144,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/scissor",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.4",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4759,7 +5180,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4772,6 +5194,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/shaderSource",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4805,7 +5230,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4818,6 +5244,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilFunc",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4851,7 +5280,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4864,6 +5294,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilFuncSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4897,7 +5330,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4910,6 +5344,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilMask",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4943,7 +5380,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4956,6 +5394,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilMaskSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -4989,7 +5430,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5002,6 +5444,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilOp",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5035,7 +5480,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5048,6 +5494,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilOpSeparate",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.3",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5081,7 +5530,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5097,6 +5547,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5110,7 +5563,11 @@
             "firefox": {
               "version_added": "4"
             },
-            "firefox_android": "mirror",
+            "firefox_android": {
+              "version_added": "4",
+              "partial_implementation": true,
+              "notes": "Textures from video elements are not supported. See [bug 1884282](https://bugzil.la/1884282)."
+            },
             "ie": {
               "version_added": "11"
             },
@@ -5130,7 +5587,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5146,6 +5604,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5179,7 +5640,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5195,6 +5657,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.8",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5228,7 +5693,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5244,6 +5710,9 @@
             "https://registry.khronos.org/webgl/specs/latest/1.0/#TEXSUBIMAGE2D",
             "https://registry.khronos.org/webgl/specs/latest/2.0/#3.7.6"
           ],
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5257,7 +5726,11 @@
             "firefox": {
               "version_added": "4"
             },
-            "firefox_android": "mirror",
+            "firefox_android": {
+              "version_added": "4",
+              "partial_implementation": true,
+              "notes": "Textures from video elements are not supported. See [bug 1884282](https://bugzil.la/1884282)."
+            },
             "ie": {
               "version_added": "11"
             },
@@ -5277,7 +5750,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5290,6 +5764,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5323,7 +5800,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5336,6 +5814,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5369,7 +5850,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5382,6 +5864,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5415,7 +5900,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5428,6 +5914,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5461,7 +5950,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5474,6 +5964,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5507,7 +6000,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5520,6 +6014,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5553,7 +6050,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5566,6 +6064,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5599,7 +6100,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5612,6 +6114,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5645,7 +6150,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5658,6 +6164,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5691,7 +6200,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5704,6 +6214,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5737,7 +6250,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5750,6 +6264,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5783,7 +6300,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5796,6 +6314,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5829,7 +6350,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5842,6 +6364,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5875,7 +6400,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5888,6 +6414,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5921,7 +6450,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5934,6 +6464,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -5967,7 +6500,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5980,6 +6514,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6013,7 +6550,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6026,6 +6564,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6059,7 +6600,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6072,6 +6614,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6105,7 +6650,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6118,6 +6664,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6151,7 +6700,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6164,6 +6714,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/unpackColorSpace",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLRenderingContext-unpackColorSpace",
+          "tags": [
+            "web-features:webgl-color-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "104"
@@ -6171,7 +6724,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "132"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -6185,10 +6738,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -6198,6 +6752,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/useProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6231,7 +6788,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6244,6 +6802,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/validateProgram",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.9",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6277,7 +6838,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6290,6 +6852,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6323,7 +6888,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6336,6 +6902,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6369,7 +6938,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6379,7 +6949,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -6403,7 +6976,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6417,6 +6991,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6450,7 +7027,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6463,6 +7041,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6496,7 +7077,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6506,7 +7088,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -6530,7 +7115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6544,6 +7130,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6577,7 +7166,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6590,6 +7180,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6623,7 +7216,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6633,7 +7227,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -6657,7 +7254,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6671,6 +7269,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6704,7 +7305,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6717,6 +7319,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6750,7 +7355,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6760,7 +7366,10 @@
         },
         "value_param_accepts_SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>value</code> parameter accepts <code>SharedArrayBuffer</code> type",
+            "description": "`value` parameter accepts `SharedArrayBuffer` type",
+            "tags": [
+              "web-features:webgl-sab"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -6784,7 +7393,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -6798,6 +7408,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttribPointer",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.10",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6831,7 +7444,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6844,6 +7458,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/viewport",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.14.4",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -6877,7 +7494,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebGLSampler.json b/api/WebGLSampler.json
index 3b1cc8199cb50b..30ba796a41d8f4 100644
--- a/api/WebGLSampler.json
+++ b/api/WebGLSampler.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLSampler",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.3",
+        "tags": [
+          "web-features:webgl2"
+        ],
         "support": {
           "chrome": {
             "version_added": "56"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WebGLShader.json b/api/WebGLShader.json
index 2a70194096184b..510332b97b685b 100644
--- a/api/WebGLShader.json
+++ b/api/WebGLShader.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLShader",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.8",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebGLShaderPrecisionFormat.json b/api/WebGLShaderPrecisionFormat.json
index 567f54e5f34b03..107cfee260004d 100644
--- a/api/WebGLShaderPrecisionFormat.json
+++ b/api/WebGLShaderPrecisionFormat.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.12",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "9"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -80,6 +88,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat/precision",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLShaderPrecisionFormat-precision",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -111,7 +122,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -124,6 +136,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat/rangeMax",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLShaderPrecisionFormat-rangeMax",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -155,7 +170,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,6 +184,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat/rangeMin",
           "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#DOM-WebGLShaderPrecisionFormat-rangeMin",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": "9"
@@ -199,7 +218,8 @@
               "version_added": "8"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebGLSync.json b/api/WebGLSync.json
index 679b79943c3408..d3ae190f312a8c 100644
--- a/api/WebGLSync.json
+++ b/api/WebGLSync.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLSync",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.4",
+        "tags": [
+          "web-features:webgl2"
+        ],
         "support": {
           "chrome": {
             "version_added": "56"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WebGLTexture.json b/api/WebGLTexture.json
index ba5a18d775ed1c..580ffd7ea587b4 100644
--- a/api/WebGLTexture.json
+++ b/api/WebGLTexture.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLTexture",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.9",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebGLTimerQueryEXT.json b/api/WebGLTimerQueryEXT.json
index 5701cf3b940e53..f9de9659cf9755 100644
--- a/api/WebGLTimerQueryEXT.json
+++ b/api/WebGLTimerQueryEXT.json
@@ -3,6 +3,9 @@
     "WebGLTimerQueryEXT": {
       "__compat": {
         "spec_url": "https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query/",
+        "tags": [
+          "web-features:ext-disjoint-timer-query"
+        ],
         "support": {
           "chrome": [
             {
@@ -13,19 +16,19 @@
             {
               "version_added": "47",
               "version_removed": "65",
-              "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+              "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
             }
           ],
           "chrome_android": {
             "version_added": "47",
             "version_removed": "65",
-            "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+            "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
           },
           "edge": "mirror",
           "firefox": {
             "version_added": "51",
             "version_removed": "59",
-            "notes": "Removed due to the <a href='https://www.vusec.net/projects/glitch/'>GLitch exploit</a>."
+            "notes": "Removed due to the [GLitch exploit](https://www.vusec.net/projects/glitch/)."
           },
           "firefox_android": {
             "version_added": false
@@ -41,7 +44,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WebGLTransformFeedback.json b/api/WebGLTransformFeedback.json
index b86ffcd9e6405c..f86985b2336cbf 100644
--- a/api/WebGLTransformFeedback.json
+++ b/api/WebGLTransformFeedback.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLTransformFeedback",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.5",
+        "tags": [
+          "web-features:webgl2"
+        ],
         "support": {
           "chrome": {
             "version_added": "56"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WebGLUniformLocation.json b/api/WebGLUniformLocation.json
index b9c19b43c7d44a..5fd5106238108c 100644
--- a/api/WebGLUniformLocation.json
+++ b/api/WebGLUniformLocation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLUniformLocation",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/1.0/#5.10",
+        "tags": [
+          "web-features:webgl"
+        ],
         "support": {
           "chrome": {
             "version_added": "10"
@@ -35,7 +38,8 @@
             "version_added": "8"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:webgl"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -67,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebGLVertexArrayObject.json b/api/WebGLVertexArrayObject.json
index b24839167009b7..094f95c21ff460 100644
--- a/api/WebGLVertexArrayObject.json
+++ b/api/WebGLVertexArrayObject.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLVertexArrayObject",
         "spec_url": "https://registry.khronos.org/webgl/specs/latest/2.0/#3.6",
+        "tags": [
+          "web-features:webgl2"
+        ],
         "support": {
           "chrome": {
             "version_added": "56"
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WebGLVertexArrayObjectOES.json b/api/WebGLVertexArrayObjectOES.json
index b5da5bd4721430..39d25a62c209be 100644
--- a/api/WebGLVertexArrayObjectOES.json
+++ b/api/WebGLVertexArrayObjectOES.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebGLVertexArrayObject",
         "spec_url": "https://registry.khronos.org/webgl/extensions/OES_vertex_array_object/",
+        "tags": [
+          "web-features:oes-vertex-array-object"
+        ],
         "support": {
           "chrome": {
             "version_added": "24"
@@ -29,7 +32,8 @@
             "version_added": "9"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WebKitPoint.json b/api/WebKitPoint.json
index dabf8bfaf304d2..e319d08bdfac83 100644
--- a/api/WebKitPoint.json
+++ b/api/WebKitPoint.json
@@ -31,7 +31,8 @@
           "webview_android": {
             "version_added": "2",
             "version_removed": "39"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +42,7 @@
       },
       "WebKitPoint": {
         "__compat": {
-          "description": "<code>WebKitPoint()</code> constructor",
+          "description": "`WebKitPoint()` constructor",
           "support": {
             "chrome": {
               "version_added": "2",
@@ -70,7 +71,8 @@
             "webview_android": {
               "version_added": "2",
               "version_removed": "39"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,7 +111,8 @@
             "webview_android": {
               "version_added": "2",
               "version_removed": "39"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -148,7 +151,8 @@
             "webview_android": {
               "version_added": "2",
               "version_removed": "39"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebSocket.json b/api/WebSocket.json
index ec8b46bfdecbe6..df1c4a671f191e 100644
--- a/api/WebSocket.json
+++ b/api/WebSocket.json
@@ -26,7 +26,7 @@
               "prefix": "Moz",
               "version_added": "7",
               "version_removed": "11",
-              "notes": "Message size limited to 16 MB (see <a href='https://bugzil.la/711205'>bug 711205</a>)."
+              "notes": "Message size limited to 16 MB (see [bug 711205](https://bugzil.la/711205))."
             }
           ],
           "firefox_android": "mirror",
@@ -48,7 +48,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -58,7 +59,7 @@
       },
       "WebSocket": {
         "__compat": {
-          "description": "<code>WebSocket()</code> constructor",
+          "description": "`WebSocket()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocket/WebSocket",
           "spec_url": "https://websockets.spec.whatwg.org/#ref-for-dom-websocket-websocket①",
           "tags": [
@@ -104,13 +105,57 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "url_parameter_http_https_relative": {
+          "__compat": {
+            "description": "`url` parameter allows `https`, `http`, and relative URLs",
+            "tags": [
+              "web-features:websockets"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "125"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "124"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "17.3"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       },
       "worker_support": {
@@ -156,7 +201,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -205,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +301,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -303,7 +351,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -314,7 +363,7 @@
       },
       "close_event": {
         "__compat": {
-          "description": "<code>close</code> event",
+          "description": "`close` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocket/close_event",
           "spec_url": "https://websockets.spec.whatwg.org/#dom-websocket-onclose",
           "tags": [
@@ -355,7 +404,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -366,7 +416,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocket/error_event",
           "spec_url": "https://websockets.spec.whatwg.org/#dom-websocket-onerror",
           "tags": [
@@ -407,7 +457,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -456,7 +507,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -467,7 +519,7 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocket/message_event",
           "spec_url": "https://websockets.spec.whatwg.org/#dom-websocket-onmessage",
           "tags": [
@@ -508,7 +560,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -519,7 +572,7 @@
       },
       "open_event": {
         "__compat": {
-          "description": "<code>open</code> event",
+          "description": "`open` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocket/open_event",
           "spec_url": "https://websockets.spec.whatwg.org/#dom-websocket-onopen",
           "tags": [
@@ -560,7 +613,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -609,7 +663,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -621,6 +676,9 @@
       "protocol_rfc_6455": {
         "__compat": {
           "description": "Supports protocol as specified by RFC 6455",
+          "tags": [
+            "web-features:websockets"
+          ],
           "support": {
             "chrome": {
               "version_added": "16"
@@ -652,7 +710,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -701,7 +760,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -736,17 +796,17 @@
               {
                 "version_added": "11",
                 "version_removed": "18",
-                "notes": "Only parameter of type <code>ArrayBuffer</code> and <code>String</code> supported."
+                "notes": "Only parameter of type `ArrayBuffer` and `String` supported."
               },
               {
                 "version_added": "8",
                 "version_removed": "11",
-                "notes": "Only parameter of type <code>String</code> supported."
+                "notes": "Only parameter of type `String` supported."
               },
               {
                 "version_added": "7",
                 "version_removed": "8",
-                "notes": "Only parameter of type <code>String</code> supported. Returns <code>boolean</code>."
+                "notes": "Only parameter of type `String` supported. Returns `boolean`."
               }
             ],
             "firefox_android": "mirror",
@@ -768,7 +828,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -817,7 +878,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebSocketError.json b/api/WebSocketError.json
index 83454721d3c557..9a59f9a7c82803 100644
--- a/api/WebSocketError.json
+++ b/api/WebSocketError.json
@@ -3,7 +3,7 @@
     "WebSocketError": {
       "__compat": {
         "tags": [
-          "web-features:web-features:web-socket-stream",
+          "web-features:web-socket-stream",
           "web-features:websockets"
         ],
         "support": {
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +38,9 @@
       },
       "WebSocketError": {
         "__compat": {
-          "description": "<code>WebSocketError()</code> constructor",
+          "description": "`WebSocketError()` constructor",
           "tags": [
-            "web-features:web-features:web-socket-stream",
+            "web-features:web-socket-stream",
             "web-features:websockets"
           ],
           "support": {
@@ -63,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,7 +77,7 @@
       "closeCode": {
         "__compat": {
           "tags": [
-            "web-features:web-features:web-socket-stream",
+            "web-features:web-socket-stream",
             "web-features:websockets"
           ],
           "support": {
@@ -99,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,7 +114,7 @@
       "reason": {
         "__compat": {
           "tags": [
-            "web-features:web-features:web-socket-stream",
+            "web-features:web-socket-stream",
             "web-features:websockets"
           ],
           "support": {
@@ -135,7 +138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebSocketStream.json b/api/WebSocketStream.json
index efcf489c5aec62..730daef83c3445 100644
--- a/api/WebSocketStream.json
+++ b/api/WebSocketStream.json
@@ -2,8 +2,9 @@
   "api": {
     "WebSocketStream": {
       "__compat": {
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocketStream",
         "tags": [
-          "web-features:web-features:web-socket-stream"
+          "web-features:web-socket-stream"
         ],
         "support": {
           "chrome": {
@@ -26,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -36,9 +38,10 @@
       },
       "WebSocketStream": {
         "__compat": {
-          "description": "<code>WebSocketStream()</code> constructor",
+          "description": "`WebSocketStream()` constructor",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocketStream/WebSocketStream",
           "tags": [
-            "web-features:web-features:web-socket-stream"
+            "web-features:web-socket-stream"
           ],
           "support": {
             "chrome": {
@@ -61,7 +64,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -72,8 +76,9 @@
       },
       "close": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocketStream/close",
           "tags": [
-            "web-features:web-features:web-socket-stream"
+            "web-features:web-socket-stream"
           ],
           "support": {
             "chrome": {
@@ -96,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -107,8 +113,9 @@
       },
       "closed": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocketStream/closed",
           "tags": [
-            "web-features:web-features:web-socket-stream"
+            "web-features:web-socket-stream"
           ],
           "support": {
             "chrome": {
@@ -131,7 +138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -142,8 +150,9 @@
       },
       "opened": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocketStream/opened",
           "tags": [
-            "web-features:web-features:web-socket-stream"
+            "web-features:web-socket-stream"
           ],
           "support": {
             "chrome": {
@@ -166,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -177,8 +187,9 @@
       },
       "url": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebSocketStream/url",
           "tags": [
-            "web-features:web-features:web-socket-stream"
+            "web-features:web-socket-stream"
           ],
           "support": {
             "chrome": {
@@ -201,7 +212,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebTransport.json b/api/WebTransport.json
index ce46440f1196d3..3d96bfbc7bff60 100644
--- a/api/WebTransport.json
+++ b/api/WebTransport.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "WebTransport": {
         "__compat": {
-          "description": "<code>WebTransport()</code> constructor",
+          "description": "`WebTransport()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebTransport/WebTransport",
           "spec_url": "https://w3c.github.io/webtransport/#dom-webtransport-webtransport",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,7 +77,7 @@
         },
         "options_allowPooling_parameter": {
           "__compat": {
-            "description": "<code>options.allowPooling</code> parameter",
+            "description": "`options.allowPooling` parameter",
             "spec_url": "https://w3c.github.io/webtransport/#dom-webtransportoptions-allowpooling",
             "support": {
               "chrome": {
@@ -98,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -109,7 +112,7 @@
         },
         "options_congestionControl_parameter": {
           "__compat": {
-            "description": "<code>options.congestionControl</code> parameter",
+            "description": "`options.congestionControl` parameter",
             "spec_url": "https://w3c.github.io/webtransport/#dom-webtransportoptions-congestioncontrol",
             "support": {
               "chrome": {
@@ -132,7 +135,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -143,7 +147,7 @@
         },
         "options_requireUnreliable_parameter": {
           "__compat": {
-            "description": "<code>options.requireUnreliable</code> parameter",
+            "description": "`options.requireUnreliable` parameter",
             "spec_url": "https://w3c.github.io/webtransport/#dom-webtransportoptions-requireunreliable",
             "support": {
               "chrome": {
@@ -166,7 +170,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -177,7 +182,7 @@
         },
         "options_serverCertificateHashes_parameter": {
           "__compat": {
-            "description": "<code>options.serverCertificateHashes</code> parameter",
+            "description": "`options.serverCertificateHashes` parameter",
             "spec_url": "https://w3c.github.io/webtransport/#dom-webtransportoptions-servercertificatehashes",
             "support": {
               "chrome": {
@@ -200,7 +205,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -234,7 +240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -271,7 +278,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -308,7 +316,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -342,7 +351,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -379,7 +389,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -389,7 +400,7 @@
         },
         "options_sendOrder_parameter": {
           "__compat": {
-            "description": "<code>options.sendOrder</code> parameter",
+            "description": "`options.sendOrder` parameter",
             "spec_url": "https://w3c.github.io/webtransport/#dom-webtransportsendstreamoptions-sendorder",
             "support": {
               "chrome": {
@@ -412,7 +423,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -438,7 +450,7 @@
             "firefox": {
               "version_added": "114",
               "partial_implementation": true,
-              "notes": "Returns a <code>WritableStream</code> instead of a <code>WebTransportSendStream</code>."
+              "notes": "Returns a `WritableStream` instead of a `WebTransportSendStream`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -452,7 +464,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -484,7 +497,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -495,7 +509,7 @@
         },
         "options_sendOrder_parameter": {
           "__compat": {
-            "description": "<code>options.sendOrder</code> parameter",
+            "description": "`options.sendOrder` parameter",
             "spec_url": "https://w3c.github.io/webtransport/#dom-webtransportsendstreamoptions-sendorder",
             "support": {
               "chrome": {
@@ -518,7 +532,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -556,7 +571,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -593,7 +609,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -630,7 +647,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -667,7 +685,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -704,7 +723,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -738,7 +758,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebTransportBidirectionalStream.json b/api/WebTransportBidirectionalStream.json
index 7166959c78f6fc..d0d10a496c2fdf 100644
--- a/api/WebTransportBidirectionalStream.json
+++ b/api/WebTransportBidirectionalStream.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -64,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,7 +76,7 @@
         },
         "returns_WebTransportReceiveStream": {
           "__compat": {
-            "description": "Returns <code>WebTransportReceiveStream</code> (earlier spec returned <code>WritableStream</code>)",
+            "description": "Returns `WebTransportReceiveStream` (earlier spec returned `WritableStream`)",
             "spec_url": "https://w3c.github.io/webtransport/#dom-webtransportbidirectionalstream-readable",
             "support": {
               "chrome": {
@@ -97,7 +99,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -135,7 +138,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -145,7 +149,7 @@
         },
         "returns_WebTransportSendStream": {
           "__compat": {
-            "description": "Returns <code>WebTransportSendStream</code> (earlier spec returned <code>WritableStream</code>)",
+            "description": "Returns `WebTransportSendStream` (earlier spec returned `WritableStream`)",
             "spec_url": "https://w3c.github.io/webtransport/#dom-webtransportbidirectionalstream-readable",
             "support": {
               "chrome": {
@@ -168,7 +172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/api/WebTransportDatagramDuplexStream.json b/api/WebTransportDatagramDuplexStream.json
index ace812c58ee545..c9517270a360d6 100644
--- a/api/WebTransportDatagramDuplexStream.json
+++ b/api/WebTransportDatagramDuplexStream.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -60,7 +61,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -97,7 +99,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,7 +137,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,7 +213,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -245,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -282,7 +289,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -319,7 +327,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebTransportError.json b/api/WebTransportError.json
index d670e637754d9d..e2eba9f57d877e 100644
--- a/api/WebTransportError.json
+++ b/api/WebTransportError.json
@@ -28,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -38,7 +39,7 @@
       },
       "WebTransportError": {
         "__compat": {
-          "description": "<code>WebTransportError()</code> constructor",
+          "description": "`WebTransportError()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WebTransportError/WebTransportError",
           "spec_url": "https://w3c.github.io/webtransport/#dom-webtransporterror-webtransporterror",
           "tags": [
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -139,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WebTransportReceiveStream.json b/api/WebTransportReceiveStream.json
index 6735cd453824a9..f135ae51bb5825 100644
--- a/api/WebTransportReceiveStream.json
+++ b/api/WebTransportReceiveStream.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WebTransportSendStream.json b/api/WebTransportSendStream.json
index f8b2e809c73ff2..d6357eaab58507 100644
--- a/api/WebTransportSendStream.json
+++ b/api/WebTransportSendStream.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -91,7 +93,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -125,7 +128,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WheelEvent.json b/api/WheelEvent.json
index 7ecc50c8017fce..3d11aa309a582a 100644
--- a/api/WheelEvent.json
+++ b/api/WheelEvent.json
@@ -31,7 +31,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,7 +42,7 @@
       },
       "WheelEvent": {
         "__compat": {
-          "description": "<code>WheelEvent()</code> constructor",
+          "description": "`WheelEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WheelEvent/WheelEvent",
           "spec_url": "https://w3c.github.io/uievents/#dom-wheelevent-wheelevent",
           "support": {
@@ -69,7 +70,8 @@
             "samsunginternet_android": {
               "version_added": "1.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,7 +109,8 @@
             "samsunginternet_android": {
               "version_added": "1.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,7 +137,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "IE9 supports an old draft of the spec where this value was a <code>long</code> instead of a <code>double</code>."
+              "notes": "IE9 supports an old draft of the spec where this value was a `long` instead of a `double`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -144,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,7 +175,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "IE9 supports an old draft of the spec where this value was a <code>long</code> instead of a <code>double</code>."
+              "notes": "IE9 supports an old draft of the spec where this value was a `long` instead of a `double`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -181,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -208,7 +213,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "IE9 supports an old draft of the spec where this value was a <code>long</code> instead of a <code>double</code>."
+              "notes": "IE9 supports an old draft of the spec where this value was a `long` instead of a `double`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -218,7 +223,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -229,7 +235,7 @@
       },
       "pinch_to_zoom_support": {
         "__compat": {
-          "description": "Pinch-to-zoom maps to <code>WheelEvent</code> + <code>ctrl</code> key.",
+          "description": "Pinch-to-zoom maps to `WheelEvent` + `ctrl` key.",
           "support": {
             "chrome": {
               "version_added": "31"
@@ -253,7 +259,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,7 +298,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -329,7 +337,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -367,7 +376,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/Window.json b/api/Window.json
index 5c0e2daf8f2aec..1f4f73ec6319b5 100644
--- a/api/Window.json
+++ b/api/Window.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-window-object",
+        "tags": [
+          "web-features:window"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -36,7 +39,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,9 +50,12 @@
       },
       "DOMContentLoaded_event": {
         "__compat": {
-          "description": "<code>DOMContentLoaded</code> event",
+          "description": "`DOMContentLoaded` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/DOMContentLoaded_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-domcontentloaded",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -78,7 +85,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,7 +97,7 @@
       },
       "afterprint_event": {
         "__compat": {
-          "description": "<code>afterprint</code> event",
+          "description": "`afterprint` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/afterprint_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-afterprint",
@@ -121,7 +129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,10 +143,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/alert",
           "spec_url": "https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-alert-dev",
+          "tags": [
+            "web-features:alerts"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Starting with Chrome 46, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Chrome 46, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "chrome_android": "mirror",
             "deno": {
@@ -156,18 +168,19 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "3",
-              "notes": "Starting with Opera 33, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Opera 33, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "opera_android": {
               "version_added": "10.1",
-              "notes": "Starting with Opera 33, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Opera 33, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "safari": {
               "version_added": "1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,7 +191,7 @@
       },
       "appinstalled_event": {
         "__compat": {
-          "description": "<code>appinstalled</code> event",
+          "description": "`appinstalled` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/appinstalled_event",
           "spec_url": "https://wicg.github.io/manifest-incubations/#dom-window-onappinstalled",
           "support": {
@@ -199,18 +212,19 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "Opera exposes the <code>onappinstalled</code> event handler, but the event is never fired."
+              "notes": "Opera exposes the `onappinstalled` event handler, but the event is never fired."
             },
             "opera_android": {
               "version_added": false,
-              "notes": "Opera exposes the <code>onappinstalled</code> event handler, but the event is never fired."
+              "notes": "Opera exposes the `onappinstalled` event handler, but the event is never fired."
             },
             "safari": {
               "version_added": false
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -221,7 +235,7 @@
       },
       "beforeinstallprompt_event": {
         "__compat": {
-          "description": "<code>beforeinstallprompt</code> event",
+          "description": "`beforeinstallprompt` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/beforeinstallprompt_event",
           "spec_url": "https://wicg.github.io/manifest-incubations/#onbeforeinstallprompt-attribute",
           "support": {
@@ -233,7 +247,7 @@
                 "version_added": "44",
                 "version_removed": "61",
                 "partial_implementation": true,
-                "notes": "The <code>onbeforeinstallprompt</code> event handler property is not supported."
+                "notes": "The `onbeforeinstallprompt` event handler property is not supported."
               }
             ],
             "chrome_android": "mirror",
@@ -260,10 +274,11 @@
                 "version_added": "5.0",
                 "version_removed": "8.0",
                 "partial_implementation": true,
-                "notes": "The <code>onbeforeinstallprompt</code> event handler property is not supported."
+                "notes": "The `onbeforeinstallprompt` event handler property is not supported."
               }
             ],
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +289,7 @@
       },
       "beforeprint_event": {
         "__compat": {
-          "description": "<code>beforeprint</code> event",
+          "description": "`beforeprint` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/beforeprint_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-beforeprint",
@@ -306,7 +321,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -317,12 +333,15 @@
       },
       "beforeunload_event": {
         "__compat": {
-          "description": "<code>beforeunload</code> event",
+          "description": "`beforeunload` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/beforeunload_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-beforeunload",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-window-onbeforeunload"
           ],
+          "tags": [
+            "web-features:beforeunload"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -352,7 +371,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -362,7 +382,7 @@
         },
         "event_returnvalue_activation": {
           "__compat": {
-            "description": "Activation by setting <code>event.returnValue</code> to any truthy value",
+            "description": "Activation by setting `event.returnValue` to any truthy value",
             "support": {
               "chrome": [
                 {
@@ -397,7 +417,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -432,7 +453,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -443,7 +465,10 @@
         },
         "preventdefault_activation": {
           "__compat": {
-            "description": "Activation using <code>event.preventDefault()</code>",
+            "description": "Activation using `event.preventDefault()`",
+            "tags": [
+              "web-features:beforeunload"
+            ],
             "support": {
               "chrome": {
                 "version_added": "119"
@@ -478,7 +503,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -522,7 +548,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -566,7 +593,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -577,12 +605,15 @@
       },
       "blur_event": {
         "__compat": {
-          "description": "<code>blur</code> event",
+          "description": "`blur` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/blur_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-blur",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onblur"
           ],
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -594,8 +625,8 @@
             "firefox": {
               "version_added": "6",
               "notes": [
-                "Apart from firing the event on <code>window</code> as other browsers do, Firefox also fires the event on the <code>document</code> object. See <a href='https://bugzil.la/1228802'>bug 1228802</a>.",
-                "Before Firefox 24, the interface for this event is a plain <a href='https://developer.mozilla.org/docs/Web/API/Event'><code>Event</code></a>, not <a href='https://developer.mozilla.org/docs/Web/API/FocusEvent'><code>FocusEvent</code></a>."
+                "Apart from firing the event on `window` as other browsers do, Firefox also fires the event on the `document` object. See [bug 1228802](https://bugzil.la/1228802).",
+                "Before Firefox 24, the interface for this event is a plain [`Event`](https://developer.mozilla.org/docs/Web/API/Event), not [`FocusEvent`](https://developer.mozilla.org/docs/Web/API/FocusEvent)."
               ]
             },
             "firefox_android": "mirror",
@@ -616,7 +647,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -669,7 +701,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -682,6 +715,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/cancelIdleCallback",
           "spec_url": "https://w3c.github.io/requestidlecallback/#the-cancelidlecallback-method",
+          "tags": [
+            "web-features:requestidlecallback"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -704,7 +740,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -744,7 +781,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -775,7 +813,7 @@
             "nodejs": {
               "version_added": "0.10.0",
               "partial_implementation": true,
-              "notes": "Takes an <code>Immediate</code> object instead of the <code>immediateID</code>."
+              "notes": "Takes an `Immediate` object instead of the `immediateID`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -785,7 +823,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -798,6 +837,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/close",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-close-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -830,7 +872,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -843,6 +886,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/closed",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-closed-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -870,7 +916,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -883,10 +930,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/confirm",
           "spec_url": "https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-confirm-dev",
+          "tags": [
+            "web-features:alerts"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Starting with Chrome 46, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Chrome 46, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "chrome_android": "mirror",
             "deno": {
@@ -905,11 +955,11 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "3",
-              "notes": "Starting with Opera 33, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Opera 33, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "opera_android": {
               "version_added": "10.1",
-              "notes": "Starting with Opera 33, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Opera 33, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "safari": {
               "version_added": "1"
@@ -918,8 +968,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1",
-              "notes": "Starting with Chrome 46, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
-            }
+              "notes": "Starting with Chrome 46, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -939,8 +990,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1475599"
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -955,7 +1005,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -992,7 +1043,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1029,7 +1081,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1040,7 +1093,7 @@
       },
       "devicemotion_event": {
         "__compat": {
-          "description": "<code>devicemotion</code> event",
+          "description": "`devicemotion` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/devicemotion_event",
           "spec_url": [
             "https://w3c.github.io/deviceorientation/#devicemotion",
@@ -1074,7 +1127,8 @@
               "version_added": "4.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1085,7 +1139,7 @@
       },
       "deviceorientation_event": {
         "__compat": {
-          "description": "<code>deviceorientation</code> event",
+          "description": "`deviceorientation` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/deviceorientation_event",
           "spec_url": [
             "https://w3c.github.io/deviceorientation/#deviceorientation",
@@ -1132,7 +1186,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1143,7 +1198,7 @@
       },
       "deviceorientationabsolute_event": {
         "__compat": {
-          "description": "<code>deviceorientationabsolute</code> event",
+          "description": "`deviceorientationabsolute` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/deviceorientationabsolute_event",
           "spec_url": "https://w3c.github.io/deviceorientation/#dom-window-ondeviceorientationabsolute",
           "support": {
@@ -1167,7 +1222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1205,11 +1261,12 @@
             "safari": {
               "version_added": "3",
               "partial_implementation": true,
-              "notes": "In Safari, the <code>devicePixelRatio</code> does not change when the page is zoomed. See <a href='https://webkit.org/b/124862'>bug 124862</a>."
+              "notes": "In Safari, the `devicePixelRatio` does not change when the page is zoomed. See [bug 124862](https://webkit.org/b/124862)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1222,6 +1279,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/document",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-document-dev",
+          "tags": [
+            "web-features:dom"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1249,7 +1309,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1288,7 +1349,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1339,7 +1401,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1350,12 +1413,15 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/error_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-error",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onerror"
           ],
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -1384,7 +1450,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1424,7 +1491,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1448,7 +1516,7 @@
             "firefox": [
               {
                 "version_added": "2",
-                "notes": "From Firefox 78 <code>AddSearchProvider()</code> does nothing, as the specification requires."
+                "notes": "From Firefox 78 `AddSearchProvider()` does nothing, as the specification requires."
               },
               {
                 "alternative_name": "sidebar",
@@ -1456,17 +1524,7 @@
                 "version_removed": "102"
               }
             ],
-            "firefox_android": [
-              {
-                "version_added": "4",
-                "notes": "From Firefox for Android 79 <code>AddSearchProvider()</code> does nothing, as the specification requires."
-              },
-              {
-                "alternative_name": "sidebar",
-                "version_added": "4",
-                "version_removed": "102"
-              }
-            ],
+            "firefox_android": "mirror",
             "ie": {
               "version_added": "4"
             },
@@ -1480,7 +1538,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1493,9 +1552,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/fence",
           "spec_url": "https://wicg.github.io/fenced-frame/#dom-window-fence",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -1514,7 +1576,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1549,7 +1612,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1562,6 +1626,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/focus",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#dom-window-focus-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
@@ -1592,7 +1659,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1603,12 +1671,15 @@
       },
       "focus_event": {
         "__compat": {
-          "description": "<code>focus</code> event",
+          "description": "`focus` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/focus_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-focus",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-onfocus"
           ],
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -1620,8 +1691,8 @@
             "firefox": {
               "version_added": "6",
               "notes": [
-                "Apart from firing the event on <code>window</code> as other browsers do, Firefox also fires the event on the <code>document</code> object. See <a href='https://bugzil.la/1228802'>bug 1228802</a>.",
-                "Before Firefox 24, the interface for this event is a plain <a href='https://developer.mozilla.org/docs/Web/API/Event'><code>Event</code></a>, not <a href='https://developer.mozilla.org/docs/Web/API/FocusEvent'><code>FocusEvent</code></a>."
+                "Apart from firing the event on `window` as other browsers do, Firefox also fires the event on the `document` object. See [bug 1228802](https://bugzil.la/1228802).",
+                "Before Firefox 24, the interface for this event is a plain [`Event`](https://developer.mozilla.org/docs/Web/API/Event), not [`FocusEvent`](https://developer.mozilla.org/docs/Web/API/FocusEvent)."
               ]
             },
             "firefox_android": "mirror",
@@ -1642,7 +1713,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1655,6 +1727,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/frameElement",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-frameelement-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1684,7 +1759,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1697,6 +1773,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/frames",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-frames-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1724,7 +1803,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1757,7 +1837,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1768,24 +1849,24 @@
       },
       "gamepadconnected_event": {
         "__compat": {
-          "description": "<code>gamepadconnected</code> event",
+          "description": "`gamepadconnected` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/gamepadconnected_event",
           "spec_url": "https://w3c.github.io/gamepad/#event-gamepadconnected",
           "support": {
             "chrome": {
               "version_added": "35",
               "partial_implementation": true,
-              "notes": "The <code>ongamepadconnected</code> event handler property is not supported. See <a href='https://crbug.com/1192878'>bug 1192878</a>."
+              "notes": "The `ongamepadconnected` event handler property is not supported. See [bug 40175074](https://crbug.com/40175074)."
             },
             "chrome_android": {
               "version_added": "37",
               "partial_implementation": true,
-              "notes": "The <code>ongamepadconnected</code> event handler property is not supported. See <a href='https://crbug.com/1192878'>bug 1192878</a>."
+              "notes": "The `ongamepadconnected` event handler property is not supported. See [bug 40175074](https://crbug.com/40175074)."
             },
             "edge": {
               "version_added": "≤18",
               "partial_implementation": true,
-              "notes": "The <code>ongamepadconnected</code> event handler property is not supported. See <a href='https://crbug.com/1192878'>bug 1192878</a>."
+              "notes": "The `ongamepadconnected` event handler property is not supported. See [bug 40175074](https://crbug.com/40175074)."
             },
             "firefox": [
               {
@@ -1795,7 +1876,7 @@
                 "version_added": "29",
                 "version_removed": "89",
                 "partial_implementation": true,
-                "notes": "The <code>ongamepadconnected</code> event handler property is not supported. See <a href='https://bugzil.la/1697093'>bug 1697093</a>."
+                "notes": "The `ongamepadconnected` event handler property is not supported. See [bug 1697093](https://bugzil.la/1697093)."
               }
             ],
             "firefox_android": [
@@ -1806,7 +1887,7 @@
                 "version_added": "32",
                 "version_removed": "89",
                 "partial_implementation": true,
-                "notes": "The <code>ongamepadconnected</code> event handler property is not supported. See <a href='https://bugzil.la/1697093'>bug 1697093</a>."
+                "notes": "The `ongamepadconnected` event handler property is not supported. See [bug 1697093](https://bugzil.la/1697093)."
               }
             ],
             "ie": {
@@ -1823,12 +1904,13 @@
                 "version_added": "10.1",
                 "version_removed": "16",
                 "partial_implementation": true,
-                "notes": "The <code>ongamepadconnected</code> event handler property is not supported. See <a href='https://webkit.org/b/223860'>bug 223860</a>."
+                "notes": "The `ongamepadconnected` event handler property is not supported. See [bug 223860](https://webkit.org/b/223860)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1839,24 +1921,24 @@
       },
       "gamepaddisconnected_event": {
         "__compat": {
-          "description": "<code>gamepaddisconnected</code> event",
+          "description": "`gamepaddisconnected` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/gamepaddisconnected_event",
           "spec_url": "https://w3c.github.io/gamepad/#event-gamepaddisconnected",
           "support": {
             "chrome": {
               "version_added": "35",
               "partial_implementation": true,
-              "notes": "The <code>ongamepaddisconnected</code> event handler property is not supported. See <a href='https://crbug.com/1192878'>bug 1192878</a>."
+              "notes": "The `ongamepaddisconnected` event handler property is not supported. See [bug 40175074](https://crbug.com/40175074)."
             },
             "chrome_android": {
               "version_added": "37",
               "partial_implementation": true,
-              "notes": "The <code>ongamepaddisconnected</code> event handler property is not supported. See <a href='https://crbug.com/1192878'>bug 1192878</a>."
+              "notes": "The `ongamepaddisconnected` event handler property is not supported. See [bug 40175074](https://crbug.com/40175074)."
             },
             "edge": {
               "version_added": "≤18",
               "partial_implementation": true,
-              "notes": "The <code>ongamepaddisconnected</code> event handler property is not supported. See <a href='https://crbug.com/1192878'>bug 1192878</a>."
+              "notes": "The `ongamepaddisconnected` event handler property is not supported. See [bug 40175074](https://crbug.com/40175074)."
             },
             "firefox": [
               {
@@ -1866,7 +1948,7 @@
                 "version_added": "29",
                 "version_removed": "89",
                 "partial_implementation": true,
-                "notes": "The <code>ongamepaddisconnected</code> event handler property is not supported. See <a href='https://bugzil.la/1697093'>bug 1697093</a>."
+                "notes": "The `ongamepaddisconnected` event handler property is not supported. See [bug 1697093](https://bugzil.la/1697093)."
               }
             ],
             "firefox_android": [
@@ -1877,7 +1959,7 @@
                 "version_added": "32",
                 "version_removed": "89",
                 "partial_implementation": true,
-                "notes": "The <code>ongamepaddisconnected</code> event handler property is not supported. See <a href='https://bugzil.la/1697093'>bug 1697093</a>."
+                "notes": "The `ongamepaddisconnected` event handler property is not supported. See [bug 1697093](https://bugzil.la/1697093)."
               }
             ],
             "ie": {
@@ -1894,12 +1976,13 @@
                 "version_added": "10.1",
                 "version_removed": "16",
                 "partial_implementation": true,
-                "notes": "The <code>ongamepaddisconnected</code> event handler property is not supported. See <a href='https://webkit.org/b/223860'>bug 223860</a>."
+                "notes": "The `ongamepaddisconnected` event handler property is not supported. See [bug 223860](https://webkit.org/b/223860)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1912,6 +1995,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle",
           "spec_url": "https://drafts.csswg.org/cssom/#dom-window-getcomputedstyle",
+          "tags": [
+            "web-features:get-computed-style"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1922,7 +2008,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before version 62 this function returned <code>null</code> when called on a Window with no presentation (e.g. an iframe with <code>display: none;</code> set). Since 62 it returns a <code>CSSStyleDeclaration</code> object with <code>length</code> 0, containing empty strings (<a href='https://bugzil.la/1467722'>bug 1467722</a>; also see <a href='https://bugzil.la/1471231'>bug 1471231</a> for further work)."
+              "notes": "Before version 62 this function returned `null` when called on a Window with no presentation (e.g. an iframe with `display: none;` set). Since 62 it returns a `CSSStyleDeclaration` object with `length` 0, containing empty strings ([bug 1467722](https://bugzil.la/1467722); also see [bug 1471231](https://bugzil.la/1471231) for further work)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1942,7 +2028,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1953,6 +2040,9 @@
         "pseudo_element_support": {
           "__compat": {
             "description": "Pseudo-element support",
+            "tags": [
+              "web-features:get-computed-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "11"
@@ -1982,7 +2072,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2016,7 +2107,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2048,7 +2140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2086,7 +2179,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2099,6 +2193,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/getScreenDetails",
           "spec_url": "https://w3c.github.io/window-management/#api-window-getScreenDetails-method",
+          "tags": [
+            "web-features:window-management"
+          ],
           "support": {
             "chrome": {
               "version_added": "100"
@@ -2120,7 +2217,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2133,6 +2231,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/getSelection",
           "spec_url": "https://w3c.github.io/selection-api/#dom-window-getselection",
+          "tags": [
+            "web-features:selection-api"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2160,7 +2261,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2171,12 +2273,15 @@
       },
       "hashchange_event": {
         "__compat": {
-          "description": "<code>hashchange</code> event",
+          "description": "`hashchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/hashchange_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-hashchange",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-window-onhashchange"
           ],
+          "tags": [
+            "web-features:hashchange"
+          ],
           "support": {
             "chrome": [
               {
@@ -2185,7 +2290,7 @@
               {
                 "version_added": "4",
                 "version_removed": "8",
-                "notes": "A regular <code>Event</code> object is fired, rather than a <code>HashChangeEvent</code> object."
+                "notes": "A regular `Event` object is fired, rather than a `HashChangeEvent` object."
               }
             ],
             "chrome_android": "mirror",
@@ -2215,7 +2320,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2228,6 +2334,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/history",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-history-interface",
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2255,7 +2364,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2278,11 +2388,11 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "From version 4 to 24, this property could give a wrong value before page load in certain circumstances (see <a href='https://bugzil.la/641188'>bug 641188</a>)."
+              "notes": "From version 4 to 24, this property could give a wrong value before page load in certain circumstances (see [bug 641188](https://bugzil.la/641188))."
             },
             "firefox_android": {
               "version_added": "4",
-              "notes": "Before version 24, this property could give a wrong value before page load in certain circumstances (see <a href='https://bugzil.la/641188'>bug 641188</a>)."
+              "notes": "Before version 24, this property could give a wrong value before page load in certain circumstances (see [bug 641188](https://bugzil.la/641188))."
             },
             "ie": {
               "version_added": "9"
@@ -2299,10 +2409,11 @@
             },
             "safari_ios": {
               "version_added": "1",
-              "notes": "This property returns the height of the <a href='https://developer.mozilla.org/docs/Glossary/visual_viewport'>visual viewport</a> instead of the layout viewport. See <a href='https://webkit.org/b/174362'>bug 174362</a> for details."
+              "notes": "This property returns the height of the [visual viewport](https://developer.mozilla.org/docs/Glossary/visual_viewport) instead of the layout viewport. See [bug 174362](https://webkit.org/b/174362) for details."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2325,11 +2436,11 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "From version 4 to 24, this property could give a wrong value before page load in certain circumstances (see <a href='https://bugzil.la/641188'>bug 641188</a>)."
+              "notes": "From version 4 to 24, this property could give a wrong value before page load in certain circumstances (see [bug 641188](https://bugzil.la/641188))."
             },
             "firefox_android": {
               "version_added": "4",
-              "notes": "Before version 24, this property could give a wrong value before page load in certain circumstances (see <a href='https://bugzil.la/641188'>bug 641188</a>)."
+              "notes": "Before version 24, this property could give a wrong value before page load in certain circumstances (see [bug 641188](https://bugzil.la/641188))."
             },
             "ie": {
               "version_added": "9"
@@ -2346,10 +2457,11 @@
             },
             "safari_ios": {
               "version_added": "1",
-              "notes": "This property returns the width of the <a href='https://developer.mozilla.org/docs/Glossary/visual_viewport'>visual viewport</a> instead of the layout viewport. See <a href='https://webkit.org/b/174362'>bug 174362</a> for details."
+              "notes": "This property returns the width of the [visual viewport](https://developer.mozilla.org/docs/Glossary/visual_viewport) instead of the layout viewport. See [bug 174362](https://webkit.org/b/174362) for details."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2360,12 +2472,15 @@
       },
       "languagechange_event": {
         "__compat": {
-          "description": "<code>languagechange</code> event",
+          "description": "`languagechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/languagechange_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-languagechange",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-window-onlanguagechange"
           ],
+          "tags": [
+            "web-features:language"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -2391,7 +2506,8 @@
             "samsunginternet_android": {
               "version_added": "4.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2427,7 +2543,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -2440,6 +2557,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/length",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-length-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2467,7 +2587,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2478,12 +2599,15 @@
       },
       "load_event": {
         "__compat": {
-          "description": "<code>load</code> event",
+          "description": "`load` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/load_event",
           "spec_url": [
             "https://w3c.github.io/uievents/#event-type-load",
             "https://html.spec.whatwg.org/multipage/parsing.html#delay-the-load-event"
           ],
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2514,7 +2638,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2527,6 +2652,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/localStorage",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-localstorage-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -2534,7 +2662,7 @@
             "chrome_android": "mirror",
             "deno": {
               "version_added": "1.16",
-              "notes": "The key used for the Web Storage bucket is based on various factors. See <a href='https://deno.land/manual/runtime/web_storage_api'>the Deno manual</a>."
+              "notes": "The key used for the Web Storage bucket is based on various factors. See [the Deno manual](https://deno.land/manual/runtime/web_storage_api)."
             },
             "edge": {
               "version_added": "12"
@@ -2560,7 +2688,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2573,6 +2702,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/location",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-location-interface",
+          "tags": [
+            "web-features:location"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2593,7 +2725,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 57, single quotes contained in URLs were escaped when accessed via URL APIs. See <a href='https://bugzil.la/1386683'>bug 1386683</a>."
+              "notes": "Before Firefox 57, single quotes contained in URLs were escaped when accessed via URL APIs. See [bug 1386683](https://bugzil.la/1386683)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2611,7 +2743,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2624,6 +2757,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/locationbar",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-locationbar-dev",
+          "tags": [
+            "web-features:barprop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2649,7 +2785,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2691,7 +2828,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2704,6 +2842,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/menubar",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-menubar-dev",
+          "tags": [
+            "web-features:barprop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2729,7 +2870,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2740,12 +2882,15 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/message_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-message",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-window-onmessage"
           ],
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -2773,7 +2918,8 @@
               "version_added": "4"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2784,7 +2930,7 @@
       },
       "messageerror_event": {
         "__compat": {
-          "description": "<code>messageerror</code> event",
+          "description": "`messageerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/messageerror_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-messageerror",
@@ -2814,12 +2960,12 @@
               "version_added": "47"
             },
             "safari": {
-              "version_added": "16.4",
-              "impl_url": "https://webkit.org/b/171216"
+              "version_added": "16.4"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2859,7 +3005,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2899,7 +3046,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2909,11 +3057,11 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Moved relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Moved relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
             "support": {
               "chrome": {
                 "version_added": "100",
-                "notes": "Without the <code>window-management</code> permission, multi-screen coordinates are used, but windows are clamped to their existing displays."
+                "notes": "Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -2935,7 +3083,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2969,7 +3118,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3002,7 +3152,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3015,6 +3166,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/name",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-name-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -3028,7 +3182,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 86, if a new page from another domain is loaded into a tab, then <code>window.name</code> is not set to an empty string, which can allow some cross-site attacks. See <a href='https://bugzil.la/1685089'>bug 1685089</a> and <a href='https://bugzil.la/444222'>bug 444222</a>."
+              "notes": "Before Firefox 86, if a new page from another domain is loaded into a tab, then `window.name` is not set to an empty string, which can allow some cross-site attacks. See [bug 1685089](https://bugzil.la/1685089) and [bug 444222](https://bugzil.la/444222)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -3046,7 +3200,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3086,7 +3241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3099,6 +3255,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/navigator",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator",
+          "tags": [
+            "web-features:navigator"
+          ],
           "support": {
             "chrome": [
               {
@@ -3171,7 +3330,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3182,12 +3342,15 @@
       },
       "offline_event": {
         "__compat": {
-          "description": "<code>offline</code> event",
+          "description": "`offline` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/offline_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-offline",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-window-onoffline"
           ],
+          "tags": [
+            "web-features:online"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -3215,7 +3378,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3226,12 +3390,15 @@
       },
       "online_event": {
         "__compat": {
-          "description": "<code>online</code> event",
+          "description": "`online` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/online_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-online",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-window-ononline"
           ],
+          "tags": [
+            "web-features:online"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -3259,7 +3426,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3275,6 +3443,9 @@
             "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-open-dev",
             "https://drafts.csswg.org/cssom-view/#the-features-argument-to-the-open()-method"
           ],
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -3300,9 +3471,14 @@
             "safari": {
               "version_added": "1"
             },
-            "safari_ios": "mirror",
+            "safari_ios": {
+              "version_added": "1",
+              "partial_implementation": true,
+              "notes": "This method will not function if the `target` parameter is unspecified or set to `_blank`."
+            },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3312,10 +3488,10 @@
         },
         "features_parameter_attributionsrc": {
           "__compat": {
-            "description": "<code>features</code> parameter accepts <code>\"attributionsrc\"</code> value",
+            "description": "`features` parameter accepts `\"attributionsrc\"` value",
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "125"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -3334,7 +3510,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -3345,7 +3522,10 @@
         },
         "features_parameter_popup": {
           "__compat": {
-            "description": "<code>features</code> parameter accepts <code>\"popup\"</code> value",
+            "description": "`features` parameter accepts `\"popup\"` value",
+            "tags": [
+              "web-features:window"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -3371,7 +3551,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3382,7 +3563,10 @@
         },
         "once_per_event": {
           "__compat": {
-            "description": "One <code>Window.open()</code> call per event",
+            "description": "One `Window.open()` call per event",
+            "tags": [
+              "web-features:window"
+            ],
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -3410,7 +3594,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3421,11 +3606,14 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Opened relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Opened relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
+            "tags": [
+              "web-features:window-management"
+            ],
             "support": {
               "chrome": {
                 "version_added": "100",
-                "notes": "Without the <code>window-management</code> permission, multi-screen coordinates are used, but windows are clamped to their existing displays."
+                "notes": "Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -3446,7 +3634,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3460,6 +3649,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/opener",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-opener-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -3487,7 +3679,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3531,7 +3724,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3542,7 +3736,7 @@
       },
       "orientationchange_event": {
         "__compat": {
-          "description": "<code>orientationchange</code> event",
+          "description": "`orientationchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/orientationchange_event",
           "spec_url": "https://compat.spec.whatwg.org/#event-orientationchange",
           "support": {
@@ -3576,7 +3770,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3610,7 +3805,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -3652,7 +3848,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3694,7 +3891,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3705,9 +3903,12 @@
       },
       "pagehide_event": {
         "__compat": {
-          "description": "<code>pagehide</code> event",
+          "description": "`pagehide` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/pagehide_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-pagehide",
+          "tags": [
+            "web-features:page-transition-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -3733,7 +3934,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3744,18 +3946,21 @@
       },
       "pagereveal_event": {
         "__compat": {
-          "description": "<code>pagereveal</code> event",
+          "description": "`pagereveal` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/pagereveal_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-pagereveal",
+          "tags": [
+            "web-features:view-transitions"
+          ],
           "support": {
             "chrome": {
-              "version_added": "123",
-              "impl_url": "https://crbug.com/40276316"
+              "version_added": "123"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1860854"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -3765,14 +3970,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -3780,9 +3986,12 @@
       },
       "pageshow_event": {
         "__compat": {
-          "description": "<code>pageshow</code> event",
+          "description": "`pageshow` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/pageshow_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-pageshow",
+          "tags": [
+            "web-features:page-transition-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -3808,7 +4017,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3819,18 +4029,21 @@
       },
       "pageswap_event": {
         "__compat": {
-          "description": "<code>pageswap</code> event",
+          "description": "`pageswap` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/pageswap_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-pageswap",
+          "tags": [
+            "web-features:view-transitions"
+          ],
           "support": {
             "chrome": {
-              "version_added": "124",
-              "impl_url": "https://crbug.com/41495176"
+              "version_added": "124"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1881438"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -3840,14 +4053,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -3857,6 +4071,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/parent",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-parent-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -3884,7 +4101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3897,6 +4115,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/personalbar",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-personalbar-dev",
+          "tags": [
+            "web-features:barprop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -3926,7 +4147,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3937,16 +4159,19 @@
       },
       "popstate_event": {
         "__compat": {
-          "description": "<code>popstate</code> event",
+          "description": "`popstate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/popstate_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-popstate",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-window-onpopstate"
           ],
+          "tags": [
+            "web-features:history"
+          ],
           "support": {
             "chrome": {
               "version_added": "5",
-              "notes": "Before version 34, Chrome would fire a <code>popstate</code> event on page load."
+              "notes": "Before version 34, Chrome would fire a `popstate` event on page load."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -3968,14 +4193,15 @@
             },
             "safari": {
               "version_added": "5",
-              "notes": "Before version 10, Safari would fire a <code>popstate</code> event on page load."
+              "notes": "Before version 10, Safari would fire a `popstate` event on page load."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37",
-              "notes": "Before version 37, WebView would fire a <code>popstate</code> event on page load."
-            }
+              "notes": "Before version 37, WebView would fire a `popstate` event on page load."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -3988,6 +4214,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/postMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/web-messaging.html#dom-window-postmessage-options-dev",
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -3999,21 +4228,21 @@
             "firefox": {
               "version_added": "3",
               "notes": [
-                "Firefox 8 and up supports sending <code>File</code> and <code>FileList</code> objects between windows. This is only allowed if the recipient's principal is contained within the sender's principal for security reasons.",
-                "Before Firefox 6, the <code>message</code> parameter must be a string. Since Firefox 6, the <code>message</code> parameter is serialized using the <a href='https://developer.mozilla.org/docs/Web/API/Web_Workers_API/Structured_clone_algorithm'>structured clone algorithm</a>. This means you can pass a broad variety of data objects safely to the destination window without having to serialize them yourself."
+                "Firefox 8 and up supports sending `File` and `FileList` objects between windows. This is only allowed if the recipient's principal is contained within the sender's principal for security reasons.",
+                "Before Firefox 6, the `message` parameter must be a string. Since Firefox 6, the `message` parameter is serialized using the [structured clone algorithm](https://developer.mozilla.org/docs/Web/API/Web_Workers_API/Structured_clone_algorithm). This means you can pass a broad variety of data objects safely to the destination window without having to serialize them yourself."
               ]
             },
             "firefox_android": "mirror",
             "ie": [
               {
                 "version_added": "10",
-                "notes": "IE10 had an important limitation: see this <a href='https://stackoverflow.com/questions/16226924/is-cross-origin-postmessage-broken-in-ie10'>article</a> for details."
+                "notes": "IE10 had an important limitation: see this [article](https://stackoverflow.com/questions/16226924/is-cross-origin-postmessage-broken-in-ie10) for details."
               },
               {
                 "version_added": "8",
                 "version_removed": "10",
                 "partial_implementation": true,
-                "notes": "Support only for <code>&lt;frame&gt;</code> and <code>&lt;iframe&gt;</code>."
+                "notes": "Support only for `&lt;frame&gt;` and `&lt;iframe&gt;`."
               }
             ],
             "oculus": "mirror",
@@ -4030,7 +4259,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4038,9 +4268,49 @@
             "deprecated": false
           }
         },
+        "options_includeUserActivation_parameter": {
+          "__compat": {
+            "description": "`options.includeUserActivation` parameter",
+            "support": {
+              "chrome": {
+                "version_added": "72"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": false,
+              "deprecated": false
+            }
+          }
+        },
         "transfer_parameter": {
           "__compat": {
-            "description": "<code>transfer</code> parameter",
+            "description": "`transfer` parameter",
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -4072,7 +4342,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4092,7 +4363,7 @@
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Starting with Chrome 46, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Chrome 46, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -4110,18 +4381,19 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "6",
-              "notes": "Starting with Opera 33, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Opera 33, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "opera_android": {
               "version_added": "10.1",
-              "notes": "Starting with Opera 33, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Opera 33, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "safari": {
               "version_added": "1.1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4134,10 +4406,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/prompt",
           "spec_url": "https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-prompt-dev",
+          "tags": [
+            "web-features:alerts"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Starting with Chrome 46, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Chrome 46, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "chrome_android": "mirror",
             "deno": {
@@ -4148,28 +4423,29 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Firefox strips newline characters from the prompt response; see <a href='https://bugzil.la/1716229'>bug 1716229</a>."
+              "notes": "Firefox strips newline characters from the prompt response; see [bug 1716229](https://bugzil.la/1716229)."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "4",
-              "notes": "This function has no effect in the Modern UI/Metro version of Internet Explorer for Windows 8. It does not display a prompt to the user, and always returns <code>undefined</code>. It is not clear whether this is a bug or intended behavior. Desktop versions of IE do implement this function."
+              "notes": "This function has no effect in the Modern UI/Metro version of Internet Explorer for Windows 8. It does not display a prompt to the user, and always returns `undefined`. It is not clear whether this is a bug or intended behavior. Desktop versions of IE do implement this function."
             },
             "oculus": "mirror",
             "opera": {
               "version_added": "3",
-              "notes": "Starting with Opera 33, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Opera 33, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "opera_android": {
               "version_added": "10.1",
-              "notes": "Starting with Opera 33, this method is blocked inside an <code>&lt;iframe&gt;</code> unless its sandbox attribute has the value <code>allow-modals</code>."
+              "notes": "Starting with Opera 33, this method is blocked inside an `&lt;iframe&gt;` unless its sandbox attribute has the value `allow-modals`."
             },
             "safari": {
               "version_added": "1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4182,12 +4458,16 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/queryLocalFonts",
           "spec_url": "https://wicg.github.io/local-font-access/#dom-window-querylocalfonts",
+          "tags": [
+            "web-features:local-fonts"
+          ],
           "support": {
             "chrome": {
               "version_added": "103"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://crbug.com/40840834"
             },
             "edge": "mirror",
             "firefox": {
@@ -4207,7 +4487,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4218,7 +4499,7 @@
       },
       "rejectionhandled_event": {
         "__compat": {
-          "description": "<code>rejectionhandled</code> event",
+          "description": "`rejectionhandled` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/rejectionhandled_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/webappapis.html#unhandled-promise-rejections",
@@ -4250,7 +4531,8 @@
               "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4290,7 +4572,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4319,18 +4602,18 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Before version 17, Edge does not reliably fire <code>requestAnimationFrame</code> before the paint cycle."
+              "notes": "Before version 17, Edge does not reliably fire `requestAnimationFrame` before the paint cycle."
             },
             "firefox": [
               {
                 "version_added": "23",
-                "notes": "Callback parameter is a <code>DOMHighResTimestamp</code>. This means ten microsecond precision and zero time as <code>performance.now()</code>."
+                "notes": "Callback parameter is a `DOMHighResTimestamp`. This means ten microsecond precision and zero time as `performance.now()`."
               },
               {
                 "prefix": "moz",
                 "version_added": "11",
                 "version_removed": "42",
-                "notes": "Callback parameter is a <code>DOMTimestamp</code>. This means millisecond precision and zero time as <code>Date.now()</code>."
+                "notes": "Callback parameter is a `DOMTimestamp`. This means millisecond precision and zero time as `Date.now()`."
               },
               {
                 "prefix": "moz",
@@ -4351,7 +4634,7 @@
             ],
             "ie": {
               "version_added": "10",
-              "notes": "Internet Explorer does not reliably fire <code>requestAnimationFrame</code> before the paint cycle."
+              "notes": "Internet Explorer does not reliably fire `requestAnimationFrame` before the paint cycle."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -4375,7 +4658,8 @@
                 "prefix": "webkit",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4416,7 +4700,8 @@
             "webview_android": {
               "prefix": "webkit",
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4429,6 +4714,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/requestIdleCallback",
           "spec_url": "https://w3c.github.io/requestidlecallback/#the-requestidlecallback-method",
+          "tags": [
+            "web-features:requestidlecallback"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -4451,7 +4739,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4462,22 +4751,22 @@
       },
       "resize_event": {
         "__compat": {
-          "description": "<code>resize</code> event",
+          "description": "`resize` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/resize_event",
           "spec_url": "https://drafts.csswg.org/cssom-view/#eventdef-window-resize",
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Chrome does not fire a <code>resize</code> event on page load."
+              "notes": "Chrome does not fire a `resize` event on page load."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Before Edge 79, Edge fired a <code>resize</code> event on page load. This is no longer the case."
+              "notes": "Before Edge 79, Edge fired a `resize` event on page load. This is no longer the case."
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 68, Firefox fired a <code>resize</code> event on page load. This is no longer the case."
+              "notes": "Before Firefox 68, Firefox fired a `resize` event on page load. This is no longer the case."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -4486,11 +4775,11 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "7",
-              "notes": "Opera does not fire a <code>resize</code> event on page load."
+              "notes": "Opera does not fire a `resize` event on page load."
             },
             "opera_android": {
               "version_added": "10.1",
-              "notes": "Opera does not fire a <code>resize</code> event on page load."
+              "notes": "Opera does not fire a `resize` event on page load."
             },
             "safari": {
               "version_added": "1.1"
@@ -4499,8 +4788,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1",
-              "notes": "WebView does not fire a <code>resize</code> event on page load."
-            }
+              "notes": "WebView does not fire a `resize` event on page load."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4523,7 +4813,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn't created by <code>window.open</code> or contains more than one tab. <a href='https://bugzil.la/565541#c24'>See here</a> for more details."
+              "notes": "Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn't created by `window.open` or contains more than one tab. [See here](https://bugzil.la/565541#c24) for more details."
             },
             "firefox_android": {
               "version_added": "4"
@@ -4543,7 +4833,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4566,7 +4857,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn't created by <code>window.open</code> or contains more than one tab. <a href='https://bugzil.la/565541#c24'>See here</a> for more details."
+              "notes": "Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn't created by `window.open` or contains more than one tab. [See here](https://bugzil.la/565541#c24) for more details."
             },
             "firefox_android": {
               "version_added": "4"
@@ -4586,7 +4877,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4624,7 +4916,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -4664,7 +4957,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4704,7 +4998,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4714,7 +5009,7 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
             "support": {
               "chrome": {
                 "version_added": "100"
@@ -4738,7 +5033,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4779,7 +5075,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4789,7 +5086,7 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
             "support": {
               "chrome": {
                 "version_added": "100"
@@ -4813,7 +5110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4837,7 +5135,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of <code>screenPixelsPerCSSPixel</code> of 1 for any device."
+              "notes": "Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of `screenPixelsPerCSSPixel` of 1 for any device."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -4855,7 +5153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4865,7 +5164,7 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
             "support": {
               "chrome": {
                 "version_added": "100"
@@ -4889,7 +5188,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -4913,7 +5213,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of <code>screenPixelsPerCSSPixel</code> of 1 for any device."
+              "notes": "Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of `screenPixelsPerCSSPixel` of 1 for any device."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -4931,7 +5231,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -4941,7 +5242,7 @@
         },
         "relative-multi-screen": {
           "__compat": {
-            "description": "Relative to the <a href='https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin'>Multi-screen origin</a>",
+            "description": "Relative to the [Multi-screen origin](https://developer.mozilla.org/docs/Web/API/Window_Management_API/Multi-screen_origin)",
             "support": {
               "chrome": {
                 "version_added": "100"
@@ -4965,7 +5266,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5006,7 +5308,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5016,7 +5319,7 @@
         },
         "options_behavior_parameter": {
           "__compat": {
-            "description": "<code>options.behavior</code> parameter",
+            "description": "`options.behavior` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -5035,11 +5338,12 @@
               "opera_android": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "Safari does not have support for the <code>smooth</code> scroll behavior."
+                "notes": "Safari does not have support for the `smooth` scroll behavior."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5050,7 +5354,7 @@
         },
         "options_left_parameter": {
           "__compat": {
-            "description": "<code>options.left</code> parameter",
+            "description": "`options.left` parameter",
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -5072,7 +5376,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5083,7 +5388,7 @@
         },
         "options_top_parameter": {
           "__compat": {
-            "description": "<code>options.top</code> parameter",
+            "description": "`options.top` parameter",
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -5105,7 +5410,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5119,6 +5425,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/scrollbars",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-scrollbars-dev",
+          "tags": [
+            "web-features:barprop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5148,7 +5457,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5188,7 +5498,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5198,7 +5509,7 @@
         },
         "options_behavior_parameter": {
           "__compat": {
-            "description": "<code>options.behavior</code> parameter",
+            "description": "`options.behavior` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -5217,11 +5528,12 @@
               "opera_android": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "Safari does not have support for the <code>smooth</code> scroll behavior."
+                "notes": "Safari does not have support for the `smooth` scroll behavior."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5232,7 +5544,7 @@
         },
         "options_left_parameter": {
           "__compat": {
-            "description": "<code>options.left</code> parameter",
+            "description": "`options.left` parameter",
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -5254,7 +5566,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5265,7 +5578,7 @@
         },
         "options_top_parameter": {
           "__compat": {
-            "description": "<code>options.top</code> parameter",
+            "description": "`options.top` parameter",
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -5287,7 +5600,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5321,7 +5635,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5354,7 +5669,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5387,7 +5703,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5420,7 +5737,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5429,6 +5747,86 @@
           }
         }
       },
+      "scrollsnapchange_event": {
+        "__compat": {
+          "description": "`scrollsnapchange` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/scrollsnapchange_event",
+          "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#scrollsnapchange",
+          "tags": [
+            "web-features:scroll-snap-events"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1843961"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "scrollsnapchanging_event": {
+        "__compat": {
+          "description": "`scrollsnapchanging` event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/scrollsnapchanging_event",
+          "spec_url": "https://drafts.csswg.org/css-scroll-snap-2/#scrollsnapchanging",
+          "tags": [
+            "web-features:scroll-snap-events"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1843961"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "scrollTo": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/scrollTo",
@@ -5460,7 +5858,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5470,7 +5869,7 @@
         },
         "options_behavior_parameter": {
           "__compat": {
-            "description": "<code>options.behavior</code> parameter",
+            "description": "`options.behavior` parameter",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -5489,11 +5888,12 @@
               "opera_android": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "Before version 15.4, Safari did not have support for the <code>smooth</code> scroll behavior."
+                "notes": "Before version 15.4, Safari did not have support for the `smooth` scroll behavior."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5504,7 +5904,7 @@
         },
         "options_left_parameter": {
           "__compat": {
-            "description": "<code>options.left</code> parameter",
+            "description": "`options.left` parameter",
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -5526,7 +5926,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5537,7 +5938,7 @@
         },
         "options_top_parameter": {
           "__compat": {
-            "description": "<code>options.top</code> parameter",
+            "description": "`options.top` parameter",
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -5559,7 +5960,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5637,7 +6039,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5671,7 +6074,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5749,7 +6153,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5783,7 +6188,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -5797,6 +6203,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/self",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-self-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -5826,7 +6235,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5839,6 +6249,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/sessionStorage",
           "spec_url": "https://html.spec.whatwg.org/multipage/webstorage.html#dom-sessionstorage-dev",
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -5871,7 +6284,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5902,7 +6316,7 @@
             "nodejs": {
               "version_added": "0.10.0",
               "partial_implementation": true,
-              "notes": "Returns an <code>Immediate</code> object instead of the <code>immediateID</code>."
+              "notes": "Returns an `Immediate` object instead of the `immediateID`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -5912,7 +6326,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5945,7 +6360,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -5958,6 +6374,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/sharedStorage",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-window-sharedstorage",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -5979,7 +6398,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -5992,12 +6412,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/showDirectoryPicker",
           "spec_url": "https://wicg.github.io/file-system-access/#api-showdirectorypicker",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "132"
             },
             "edge": "mirror",
             "firefox": {
@@ -6015,7 +6438,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -6059,7 +6483,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6072,12 +6497,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/showOpenFilePicker",
           "spec_url": "https://wicg.github.io/file-system-access/#api-showopenfilepicker",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "132"
             },
             "edge": "mirror",
             "firefox": {
@@ -6095,7 +6523,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -6108,12 +6537,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/showSaveFilePicker",
           "spec_url": "https://wicg.github.io/file-system-access/#api-showsavefilepicker",
+          "tags": [
+            "web-features:file-system-access"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
             },
             "chrome_android": {
-              "version_added": false
+              "version_added": "132"
             },
             "edge": "mirror",
             "firefox": {
@@ -6131,7 +6563,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -6169,7 +6602,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6214,8 +6648,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/487255"
-            }
+              "impl_url": "https://crbug.com/40417848"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6255,7 +6690,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6268,6 +6704,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/statusbar",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-statusbar-dev",
+          "tags": [
+            "web-features:barprop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6293,7 +6732,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6306,6 +6746,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/stop",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-stop-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6335,7 +6778,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6346,12 +6790,15 @@
       },
       "storage_event": {
         "__compat": {
-          "description": "<code>storage</code> event",
+          "description": "`storage` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/storage_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-storage",
             "https://html.spec.whatwg.org/multipage/webappapis.html#handler-window-onstorage"
           ],
+          "tags": [
+            "web-features:localstorage"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6379,7 +6826,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6417,7 +6865,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6430,6 +6879,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/toolbar",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-toolbar-dev",
+          "tags": [
+            "web-features:barprop"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6455,7 +6907,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6468,6 +6921,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/top",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-top-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -6500,7 +6956,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6511,7 +6968,7 @@
       },
       "unhandledrejection_event": {
         "__compat": {
-          "description": "<code>unhandledrejection</code> event",
+          "description": "`unhandledrejection` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/unhandledrejection_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-unhandledrejection",
@@ -6528,7 +6985,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "69",
-              "notes": "<code>event.preventDefault()</code> does not prevent Firefox from logging the error message in the console, see <a href='https://bugzil.la/1642147'>bug 1642147</a>."
+              "notes": "`event.preventDefault()` does not prevent Firefox from logging the error message in the console, see [bug 1642147](https://bugzil.la/1642147)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -6544,7 +7001,8 @@
               "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6555,7 +7013,7 @@
       },
       "unload_event": {
         "__compat": {
-          "description": "<code>unload</code> event",
+          "description": "`unload` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/unload_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-unload",
@@ -6593,7 +7051,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6604,7 +7063,7 @@
       },
       "updateCommands": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/updateCommands",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window",
           "support": {
             "chrome": {
               "version_added": false
@@ -6626,7 +7085,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6665,7 +7125,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6676,7 +7137,7 @@
       },
       "vrdisplayactivate_event": {
         "__compat": {
-          "description": "<code>vrdisplayactivate</code> event",
+          "description": "`vrdisplayactivate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/vrdisplayactivate_event",
           "support": {
             "chrome": {
@@ -6723,7 +7184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6734,7 +7196,7 @@
       },
       "vrdisplayconnect_event": {
         "__compat": {
-          "description": "<code>vrdisplayconnect</code> event",
+          "description": "`vrdisplayconnect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/vrdisplayconnect_event",
           "support": {
             "chrome": {
@@ -6785,7 +7247,8 @@
               "version_removed": "13.0",
               "notes": "Supported on Samsung Internet for GearVR."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6796,7 +7259,7 @@
       },
       "vrdisplaydeactivate_event": {
         "__compat": {
-          "description": "<code>vrdisplaydeactivate</code> event",
+          "description": "`vrdisplaydeactivate` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/vrdisplaydeactivate_event",
           "support": {
             "chrome": {
@@ -6843,7 +7306,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6854,7 +7318,7 @@
       },
       "vrdisplaydisconnect_event": {
         "__compat": {
-          "description": "<code>vrdisplaydisconnect</code> event",
+          "description": "`vrdisplaydisconnect` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/vrdisplaydisconnect_event",
           "support": {
             "chrome": {
@@ -6915,7 +7379,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -6926,7 +7391,7 @@
       },
       "vrdisplaypresentchange_event": {
         "__compat": {
-          "description": "<code>vrdisplaypresentchange</code> event",
+          "description": "`vrdisplaypresentchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/vrdisplaypresentchange_event",
           "support": {
             "chrome": {
@@ -6988,7 +7453,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7030,7 +7496,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "39"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7072,7 +7539,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "39"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -7085,6 +7553,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/window",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-window-dev",
+          "tags": [
+            "web-features:window"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -7114,7 +7585,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WindowClient.json b/api/WindowClient.json
index b18934a85d6558..11f550c8f891fc 100644
--- a/api/WindowClient.json
+++ b/api/WindowClient.json
@@ -27,7 +27,10 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": {
+            "version_added": false
+          }
         },
         "status": {
           "experimental": false,
@@ -60,7 +63,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": true,
@@ -96,7 +102,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -132,7 +141,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -171,7 +183,7 @@
                 "version_added": "11.1",
                 "version_removed": "16",
                 "partial_implementation": true,
-                "notes": "This method exists, but always throws <code>NotSupportedError</code>."
+                "notes": "This method exists, but always throws `NotSupportedError`."
               }
             ],
             "safari_ios": "mirror",
@@ -180,6 +192,9 @@
             },
             "webview_android": {
               "version_added": "42"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
@@ -216,7 +231,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/api/WindowControlsOverlay.json b/api/WindowControlsOverlay.json
index df91ec0d7673ef..61850c05408126 100644
--- a/api/WindowControlsOverlay.json
+++ b/api/WindowControlsOverlay.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowControlsOverlay",
         "spec_url": "https://wicg.github.io/window-controls-overlay/#windowcontrolsoverlay-interface",
+        "tags": [
+          "web-features:window-controls-overlay"
+        ],
         "support": {
           "chrome": {
             "version_added": "105"
@@ -23,11 +26,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/257782"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +42,12 @@
       },
       "geometrychange_event": {
         "__compat": {
-          "description": "<code>geometrychange</code> event",
+          "description": "`geometrychange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowControlsOverlay/geometrychange_event",
           "spec_url": "https://wicg.github.io/window-controls-overlay/#the-ongeometrychange-attribute",
+          "tags": [
+            "web-features:window-controls-overlay"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -63,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -76,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowControlsOverlay/getTitlebarAreaRect",
           "spec_url": "https://wicg.github.io/window-controls-overlay/#the-gettitlebararearect-method",
+          "tags": [
+            "web-features:window-controls-overlay"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -99,7 +111,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -112,6 +125,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowControlsOverlay/visible",
           "spec_url": "https://wicg.github.io/window-controls-overlay/#the-visible-attribute",
+          "tags": [
+            "web-features:window-controls-overlay"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -135,7 +151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WindowControlsOverlayGeometryChangeEvent.json b/api/WindowControlsOverlayGeometryChangeEvent.json
index 25c2343309abcc..c08f8a61c1f3b3 100644
--- a/api/WindowControlsOverlayGeometryChangeEvent.json
+++ b/api/WindowControlsOverlayGeometryChangeEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowControlsOverlayGeometryChangeEvent",
         "spec_url": "https://wicg.github.io/window-controls-overlay/#windowcontrolsoverlay-interface",
+        "tags": [
+          "web-features:window-controls-overlay"
+        ],
         "support": {
           "chrome": {
             "version_added": "105"
@@ -23,11 +26,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/257782"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +42,12 @@
       },
       "WindowControlsOverlayGeometryChangeEvent": {
         "__compat": {
-          "description": "<code>WindowControlsOverlayGeometryChangeEvent()</code> constructor",
+          "description": "`WindowControlsOverlayGeometryChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowControlsOverlayGeometryChangeEvent/WindowControlsOverlayGeometryChangeEvent",
           "spec_url": "https://wicg.github.io/window-controls-overlay/#windowcontrolsoverlay-interface",
+          "tags": [
+            "web-features:window-controls-overlay"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -63,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -76,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowControlsOverlayGeometryChangeEvent/titlebarAreaRect",
           "spec_url": "https://wicg.github.io/window-controls-overlay/#windowcontrolsoverlay-interface",
+          "tags": [
+            "web-features:window-controls-overlay"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -99,7 +111,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -112,6 +125,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowControlsOverlayGeometryChangeEvent/visible",
           "spec_url": "https://wicg.github.io/window-controls-overlay/#windowcontrolsoverlay-interface",
+          "tags": [
+            "web-features:window-controls-overlay"
+          ],
           "support": {
             "chrome": {
               "version_added": "105"
@@ -135,7 +151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WindowSharedStorage.json b/api/WindowSharedStorage.json
index bdd2efb8a4b2af..66827f8de935a0 100644
--- a/api/WindowSharedStorage.json
+++ b/api/WindowSharedStorage.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowSharedStorage",
         "spec_url": "https://wicg.github.io/shared-storage/#windowsharedstorage",
+        "tags": [
+          "web-features:shared-storage"
+        ],
         "support": {
           "chrome": {
             "version_added": "117"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +41,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowSharedStorage/run",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-windowsharedstorage-run",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -58,7 +65,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,6 +79,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowSharedStorage/selectURL",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-windowsharedstorage-selecturl",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -92,7 +103,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,6 +117,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WindowSharedStorage/worklet",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-windowsharedstorage-worklet",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -126,7 +141,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Worker.json b/api/Worker.json
index 51fea50ad6baeb..8f463536222584 100644
--- a/api/Worker.json
+++ b/api/Worker.json
@@ -27,18 +27,18 @@
               "version_added": "12.17.0",
               "partial_implementation": true,
               "notes": [
-                "Is a Node <code>EventEmitter</code> instead of DOM <code>EventTarget</code>.",
+                "Is a Node `EventEmitter` instead of DOM `EventTarget`.",
                 "Worker script environment expects CommonJS modules or ECMAScript modules.",
-                "Must be imported from the <code>worker_threads</code> module."
+                "Must be imported from the `worker_threads` module."
               ]
             },
             {
               "version_added": "11.7.0",
               "partial_implementation": true,
               "notes": [
-                "Is a Node <code>EventEmitter</code> instead of DOM <code>EventTarget</code>.",
+                "Is a Node `EventEmitter` instead of DOM `EventTarget`.",
                 "Worker script environment expects CommonJS modules.",
-                "Must be imported from the <code>worker_threads</code> module."
+                "Must be imported from the `worker_threads` module."
               ]
             }
           ],
@@ -56,7 +56,8 @@
             "version_added": "5"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -66,7 +67,7 @@
       },
       "Worker": {
         "__compat": {
-          "description": "<code>Worker()</code> constructor",
+          "description": "`Worker()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Worker/Worker",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#dom-worker-dev",
           "support": {
@@ -113,7 +114,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -146,7 +148,7 @@
               "nodejs": {
                 "version_added": "12.17.0",
                 "partial_implementation": true,
-                "notes": "ECMAScript modules are enabled for files ending with <code>.mjs</code> and for files ending with <code>.js</code> when the nearest parent <code>package.json</code> file contains a top-level field <code>\"type\"</code> with a value of <code>\"module\"</code>."
+                "notes": "ECMAScript modules are enabled for files ending with `.mjs` and for files ending with `.js` when the nearest parent `package.json` file contains a top-level field `\"type\"` with a value of `\"module\"`."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -160,7 +162,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -175,7 +178,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/794548"
+                "impl_url": "https://crbug.com/40554522"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -200,7 +203,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -211,7 +215,7 @@
         },
         "options_name_parameter": {
           "__compat": {
-            "description": "<code>options.name</code> parameter",
+            "description": "`options.name` parameter",
             "support": {
               "chrome": {
                 "version_added": "70"
@@ -241,7 +245,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -252,7 +257,7 @@
         },
         "options_type_parameter": {
           "__compat": {
-            "description": "<code>options.type</code> parameter",
+            "description": "`options.type` parameter",
             "tags": [
               "web-features:js-modules-workers"
             ],
@@ -263,7 +268,7 @@
               "chrome_android": "mirror",
               "deno": {
                 "version_added": "1.0",
-                "notes": "Only supports <code>module</code>"
+                "notes": "Only supports `module`"
               },
               "edge": "mirror",
               "firefox": {
@@ -284,7 +289,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -294,9 +300,47 @@
           }
         }
       },
+      "worker_support": {
+        "__compat": {
+          "description": "Available in workers",
+          "support": {
+            "chrome": {
+              "version_added": "69",
+              "partial_implementation": true,
+              "notes": "Not available in Shared Workers. See [bug 40695450](https://crbug.com/40695450)."
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "34"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "16.4",
+              "partial_implementation": true,
+              "notes": "Not available in Shared Workers. See [bug 265263](https://webkit.org/b/265263)."
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Worker/error_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#handler-abstractworker-onerror",
           "support": {
@@ -331,7 +375,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -342,9 +387,12 @@
       },
       "message_event": {
         "__compat": {
-          "description": "<code>message</code> event",
+          "description": "`message` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Worker/message_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-message",
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -367,12 +415,12 @@
               {
                 "version_added": "12.17.0",
                 "partial_implementation": true,
-                "notes": "Supports the event, but only via Node <code>EventEmitter</code>."
+                "notes": "Supports the event, but only via Node `EventEmitter`."
               },
               {
                 "version_added": "11.7.0",
                 "partial_implementation": true,
-                "notes": "Supports the event, but only via Node <code>EventEmitter</code>."
+                "notes": "Supports the event, but only via Node `EventEmitter`."
               }
             ],
             "oculus": "mirror",
@@ -389,7 +437,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -400,7 +449,7 @@
       },
       "messageerror_event": {
         "__compat": {
-          "description": "<code>messageerror</code> event",
+          "description": "`messageerror` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Worker/messageerror_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-messageerror",
           "support": {
@@ -429,12 +478,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "16.4",
-              "impl_url": "https://webkit.org/b/171216"
+              "version_added": "16.4"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -447,6 +496,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Worker/postMessage",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#dom-worker-postmessage-dev",
+          "tags": [
+            "web-features:postmessage"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -455,15 +507,15 @@
             "deno": [
               {
                 "version_added": "1.14",
-                "notes": "The <code>message</code> parameter does not support cloning <code>Blob</code> values."
+                "notes": "The `message` parameter does not support cloning `Blob` values."
               },
               {
                 "version_added": "1.12",
                 "version_removed": "1.14",
                 "partial_implementation": true,
                 "notes": [
-                  "The <code>message</code> parameter does not support cloning <code>Blob</code> values.",
-                  "The <code>transfer</code> parameter does not accept <code>ArrayBuffer</code> items. Passing an <code>ArrayBuffer</code> results in an error being thrown."
+                  "The `message` parameter does not support cloning `Blob` values.",
+                  "The `transfer` parameter does not accept `ArrayBuffer` items. Passing an `ArrayBuffer` results in an error being thrown."
                 ]
               },
               {
@@ -471,8 +523,8 @@
                 "version_removed": "1.12",
                 "partial_implementation": true,
                 "notes": [
-                  "The <code>message</code> parameter does not support <code>SharedArrayBuffer</code>.",
-                  "The <code>transfer</code> parameter is not supported, and results in an error being thrown."
+                  "The `message` parameter does not support `SharedArrayBuffer`.",
+                  "The `transfer` parameter is not supported, and results in an error being thrown."
                 ]
               },
               {
@@ -480,8 +532,8 @@
                 "version_removed": "1.10",
                 "partial_implementation": true,
                 "notes": [
-                  "Data passed in the <code>message</code> parameter is serialized with JSON, not the structured clone algorithm.",
-                  "The <code>transfer</code> parameter is not supported, and results in an error being thrown."
+                  "Data passed in the `message` parameter is serialized with JSON, not the structured clone algorithm.",
+                  "The `transfer` parameter is not supported, and results in an error being thrown."
                 ]
               }
             ],
@@ -494,18 +546,18 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
-              "notes": "Internet Explorer does not support <code>Transferable</code> objects."
+              "notes": "Internet Explorer does not support `Transferable` objects."
             },
             "nodejs": [
               {
                 "version_added": "12.17.0",
                 "partial_implementation": true,
-                "notes": "Supports <code>transferList</code> argument for transferring <code>ArrayBuffer</code> and <code>MessagePort</code> objects"
+                "notes": "Supports `transferList` argument for transferring `ArrayBuffer` and `MessagePort` objects"
               },
               {
                 "version_added": "11.7.0",
                 "partial_implementation": true,
-                "notes": "Supports <code>transferList</code> argument for transferring <code>ArrayBuffer</code> and <code>MessagePort</code> objects"
+                "notes": "Supports `transferList` argument for transferring `ArrayBuffer` and `MessagePort` objects"
               }
             ],
             "oculus": "mirror",
@@ -522,13 +574,54 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "options_includeUserActivation_parameter": {
+          "__compat": {
+            "description": "`options.includeUserActivation` parameter",
+            "support": {
+              "chrome": {
+                "version_added": "72"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": false,
+              "deprecated": false
+            }
+          }
         }
       },
       "terminate": {
@@ -579,7 +672,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WorkerGlobalScope.json b/api/WorkerGlobalScope.json
index 1427ad5f79c663..ee1f58d0d85951 100644
--- a/api/WorkerGlobalScope.json
+++ b/api/WorkerGlobalScope.json
@@ -36,7 +36,8 @@
             "version_added": "5"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -73,7 +74,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -84,7 +86,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/error_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#handler-workerglobalscope-onerror",
           "support": {
@@ -117,7 +119,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -151,7 +154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -196,7 +200,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -206,7 +211,7 @@
         },
         "mime_checks": {
           "__compat": {
-            "description": "Strict MIME type checks for <code>importScripts()</code>",
+            "description": "Strict MIME type checks for `importScripts()`",
             "support": {
               "chrome": {
                 "version_added": "71"
@@ -231,7 +236,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -243,12 +249,15 @@
       },
       "languagechange_event": {
         "__compat": {
-          "description": "<code>languagechange</code> event",
+          "description": "`languagechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/languagechange_event",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/indices.html#event-languagechange",
             "https://html.spec.whatwg.org/multipage/workers.html#handler-workerglobalscope-onlanguagechange"
           ],
+          "tags": [
+            "web-features:language"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -273,13 +282,12 @@
             "safari": {
               "version_added": false
             },
-            "safari_ios": {
-              "version_added": "5"
-            },
+            "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -322,7 +330,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -365,7 +374,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -376,13 +386,16 @@
       },
       "offline_event": {
         "__compat": {
-          "description": "<code>offline</code> event",
+          "description": "`offline` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/offline_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#handler-workerglobalscope-onoffline",
+          "tags": [
+            "web-features:online"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/114475"
+              "impl_url": "https://crbug.com/40155587"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -404,7 +417,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -415,13 +429,16 @@
       },
       "online_event": {
         "__compat": {
-          "description": "<code>online</code> event",
+          "description": "`online` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/online_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#handler-workerglobalscope-ononline",
+          "tags": [
+            "web-features:online"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/114475"
+              "impl_url": "https://crbug.com/40155587"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -443,7 +460,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -454,7 +472,7 @@
       },
       "rejectionhandled_event": {
         "__compat": {
-          "description": "<code>rejectionhandled</code> event",
+          "description": "`rejectionhandled` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/rejectionhandled_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#handler-workerglobalscope-onrejectionhandled",
           "support": {
@@ -478,7 +496,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -489,9 +508,12 @@
       },
       "securitypolicyviolation_event": {
         "__compat": {
-          "description": "<code>securitypolicyviolation</code> event",
+          "description": "`securitypolicyviolation` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/securitypolicyviolation_event",
           "spec_url": "https://w3c.github.io/webappsec-csp/#eventdef-globaleventhandlers-securitypolicyviolation",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -515,7 +537,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -560,7 +583,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -571,7 +595,7 @@
       },
       "unhandledrejection_event": {
         "__compat": {
-          "description": "<code>unhandledrejection</code> event",
+          "description": "`unhandledrejection` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/unhandledrejection_event",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#handler-workerglobalscope-onunhandledrejection",
           "support": {
@@ -595,7 +619,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WorkerLocation.json b/api/WorkerLocation.json
index 5c0d8999f6fc02..b108458a2a211a 100644
--- a/api/WorkerLocation.json
+++ b/api/WorkerLocation.json
@@ -36,7 +36,8 @@
             "version_added": "5"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -80,7 +81,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -125,7 +127,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -170,7 +173,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,7 +219,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -254,7 +259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -299,7 +305,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -344,7 +351,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -389,7 +397,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -434,7 +443,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -481,7 +491,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WorkerNavigator.json b/api/WorkerNavigator.json
index 6db7ef416568dd..1a0a3f1bc73866 100644
--- a/api/WorkerNavigator.json
+++ b/api/WorkerNavigator.json
@@ -36,7 +36,8 @@
             "version_added": "5"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -71,7 +72,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +115,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,7 +158,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -168,6 +172,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/connection",
           "spec_url": "https://wicg.github.io/netinfo/#connection-attribute",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -202,7 +209,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "50"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -239,7 +247,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -251,6 +260,7 @@
       "globalPrivacyControl": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/globalPrivacyControl",
+          "spec_url": "https://w3c.github.io/gpc/#dom-globalprivacycontrol-globalprivacycontrol",
           "support": {
             "chrome": {
               "version_added": false
@@ -259,7 +269,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "120",
-              "notes": "Opt-in to GPC by setting the preference <code>privacy.globalprivacycontrol.enabled</code> to <code>true</code>."
+              "notes": "Opt-in to GPC by setting the preference `privacy.globalprivacycontrol.enabled` to `true`."
             },
             "firefox_android": {
               "version_added": false
@@ -275,11 +285,12 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
-            "standard_track": false,
+            "standard_track": true,
             "deprecated": false
           }
         }
@@ -330,7 +341,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -343,6 +355,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Navigator/hardwareConcurrency",
           "spec_url": "https://html.spec.whatwg.org/multipage/workers.html#dom-navigator-hardwareconcurrency-dev",
+          "tags": [
+            "web-features:hardware-concurrency"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -364,16 +379,67 @@
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
+            "safari": [
+              {
+                "version_added": "15.4",
+                "notes": "The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See [bug 233381](https://webkit.org/b/233381)."
+              },
+              {
+                "version_added": "10.1",
+                "version_removed": "11"
+              }
+            ],
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "hid": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/hid",
+          "spec_url": "https://wicg.github.io/webhid/#hid-attribute-0",
+          "tags": [
+            "web-features:webhid"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "131"
+            },
+            "chrome_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40628009"
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
             "safari": {
-              "version_added": "10.1",
-              "version_removed": "11"
+              "version_added": false
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40163407"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": false,
+            "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
@@ -383,6 +449,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/language",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-language-dev",
+          "tags": [
+            "web-features:language"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -393,14 +462,14 @@
             },
             "firefox": {
               "version_added": "3.5",
-              "notes": "Before Firefox 4, this property's value was also part of the user agent string, as reported by <code>navigator.userAgent</code>. Starting in Firefox 5, this property's value is based on the value of the <code>Accept-Language</code> <a href='https://developer.mozilla.org/docs/Web/HTTP/Headers'>HTTP header</a>."
+              "notes": "Before Firefox 4, this property's value was also part of the user agent string, as reported by `navigator.userAgent`. Starting in Firefox 5, this property's value is based on the value of the `Accept-Language` [HTTP header](https://developer.mozilla.org/docs/Web/HTTP/Headers)."
             },
             "firefox_android": {
               "version_added": "4"
             },
             "ie": {
               "version_added": "11",
-              "notes": "Closest available (non-standard) properties are <code>userLanguage</code> and <code>browserLanguage</code>."
+              "notes": "Closest available (non-standard) properties are `userLanguage` and `browserLanguage`."
             },
             "oculus": "mirror",
             "opera": {
@@ -414,7 +483,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -427,10 +497,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/languages",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-languages-dev",
+          "tags": [
+            "web-features:language"
+          ],
           "support": {
             "chrome": {
               "version_added": "37",
-              "notes": "Before Chrome 65, <code>navigator.languages[0]</code> is not guaranteed to equal <code>navigator.language</code>."
+              "notes": "Before Chrome 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -438,12 +511,12 @@
             },
             "firefox": {
               "version_added": "32",
-              "notes": "In Firefox, the <code>navigator.languages</code> property's value is taken from the <code>intl.accept_languages</code> preference."
+              "notes": "In Firefox, the `navigator.languages` property's value is taken from the `intl.accept_languages` preference."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false,
-              "notes": "Closest available (non-standard) properties are <code>userLanguage</code> and <code>browserLanguage</code>."
+              "notes": "Closest available (non-standard) properties are `userLanguage` and `browserLanguage`."
             },
             "oculus": "mirror",
             "opera": {
@@ -461,8 +534,9 @@
             },
             "webview_android": {
               "version_added": "37",
-              "notes": "Before version 65, <code>navigator.languages[0]</code> is not guaranteed to equal <code>navigator.language</code>."
-            }
+              "notes": "Before version 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -502,7 +576,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -536,7 +611,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -560,8 +636,7 @@
                   "name": "#web-machine-learning-neural-network",
                   "value_to_set": "Enabled"
                 }
-              ],
-              "notes": "Currently supported on ChromeOS and Windows only."
+              ]
             },
             "chrome_android": {
               "version_added": false
@@ -585,7 +660,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -598,6 +674,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/onLine",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-online-dev",
+          "tags": [
+            "web-features:online"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -608,7 +687,7 @@
             },
             "firefox": {
               "version_added": "3.5",
-              "notes": "Since Firefox 4 the browser returns <code>true</code> when 'Work Offline' mode is disabled and <code>false</code> when it is enabled, regardless of actual connectivity. Since Firefox 41, on OS X and Windows, the returned values follow the actual network connectivity, unless 'Work offline' mode is selected (where it will always return <code>false</code>)."
+              "notes": "Since Firefox 4 the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity. Since Firefox 41, on OS X and Windows, the returned values follow the actual network connectivity, unless 'Work offline' mode is selected (where it will always return `false`)."
             },
             "firefox_android": {
               "version_added": "4"
@@ -619,11 +698,11 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "10.6",
-              "notes": "From Opera 11.1 until Opera 12.1, the browser returns <code>true</code> when 'Work Offline' mode is disabled and <code>false</code> when it is enabled, regardless of actual connectivity."
+              "notes": "From Opera 11.1 until Opera 12.1, the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity."
             },
             "opera_android": {
               "version_added": "11",
-              "notes": "From Opera 11.1 until Opera 12.1, the browser returns <code>true</code> when 'Work Offline' mode is disabled and <code>false</code> when it is enabled, regardless of actual connectivity."
+              "notes": "From Opera 11.1 until Opera 12.1, the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity."
             },
             "safari": {
               "version_added": "4"
@@ -635,8 +714,9 @@
             "webview_android": {
               "version_added": "4.4",
               "partial_implementation": true,
-              "notes": "Can incorrectly return true, see <a href='https://crbug.com/811122'>bug 811122</a>."
-            }
+              "notes": "Can incorrectly return true, see [bug 41369933](https://crbug.com/41369933)."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -656,7 +736,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -672,8 +752,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/490120"
-            }
+              "impl_url": "https://crbug.com/40418964"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -697,8 +778,8 @@
             "firefox": {
               "version_added": "3.5",
               "notes": [
-                "Before Firefox 69, <code>platform</code> would report running on a 32-bit CPU if running the 32-bit version of Firefox on a 64-bit system.",
-                "You can override the value returned by <code>platform</code> by setting the preference <code>general.platform.override</code> to the string you wish to be returned instead."
+                "Before Firefox 69, `platform` would report running on a 32-bit CPU if running the 32-bit version of Firefox on a 64-bit system.",
+                "You can override the value returned by `platform` by setting the preference `general.platform.override` to the string you wish to be returned instead."
               ]
             },
             "firefox_android": {
@@ -721,7 +802,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -757,7 +839,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -770,6 +853,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/serial",
           "spec_url": "https://wicg.github.io/serial/#dom-workernavigator-serial",
+          "tags": [
+            "web-features:serial"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -793,7 +879,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false,
+              "impl_url": "https://crbug.com/40740509"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -814,7 +904,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -828,7 +918,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
@@ -841,6 +934,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/storage",
           "spec_url": "https://storage.spec.whatwg.org/#dom-navigatorstorage-storage",
+          "tags": [
+            "web-features:storage-manager"
+          ],
           "support": {
             "chrome": {
               "version_added": "55"
@@ -862,7 +958,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -884,7 +981,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1594740"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -898,7 +996,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -915,9 +1014,19 @@
             "web-features:webusb"
           ],
           "support": {
-            "chrome": {
-              "version_added": "70"
-            },
+            "chrome": [
+              {
+                "version_added": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers and WebExtension service workers, not available in shared workers and normal service workers."
+              },
+              {
+                "version_added": "70",
+                "version_removed": "118",
+                "partial_implementation": true,
+                "notes": "Available in dedicated workers, not available in shared workers and service workers."
+              }
+            ],
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
@@ -937,8 +1046,10 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "notes": "WebView exposes <code>navigator.usb</code>, but does not support WebUSB. See <a href='https://crbug.com/933055'>bug 933055</a>."
-            }
+              "impl_url": "https://crbug.com/41441927",
+              "notes": "WebView exposes `navigator.usb`, but does not support WebUSB."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -951,6 +1062,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/userAgent",
           "spec_url": "https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-useragent-dev",
+          "tags": [
+            "web-features:user-agent-sniffing"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -980,7 +1094,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -993,6 +1108,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkerNavigator/userAgentData",
           "spec_url": "https://wicg.github.io/ua-client-hints/#dom-navigatorua-useragentdata",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -1016,8 +1134,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false,
-              "impl_url": "https://crbug.com/921655"
-            }
+              "impl_url": "https://crbug.com/40609350"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/Worklet.json b/api/Worklet.json
index ce863c360c5d04..d1a1f7b0be368a 100644
--- a/api/Worklet.json
+++ b/api/Worklet.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -58,7 +59,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -97,7 +99,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WorkletGlobalScope.json b/api/WorkletGlobalScope.json
index 3098e484f024fd..2b05e01eb601f6 100644
--- a/api/WorkletGlobalScope.json
+++ b/api/WorkletGlobalScope.json
@@ -25,7 +25,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/WorkletSharedStorage.json b/api/WorkletSharedStorage.json
index ac4412d899dbd9..e6d3165d62cdc3 100644
--- a/api/WorkletSharedStorage.json
+++ b/api/WorkletSharedStorage.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkletSharedStorage",
         "spec_url": "https://wicg.github.io/shared-storage/#workletsharedstorage",
+        "tags": [
+          "web-features:shared-storage"
+        ],
         "support": {
           "chrome": {
             "version_added": "117"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -59,7 +63,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -72,6 +77,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkletSharedStorage/entries",
           "spec_url": "https://wicg.github.io/shared-storage/#worklet-shared-storage",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -93,7 +101,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -106,6 +115,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkletSharedStorage/get",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-workletsharedstorage-get",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -127,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -140,6 +153,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkletSharedStorage/keys",
           "spec_url": "https://wicg.github.io/shared-storage/#worklet-shared-storage",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -161,7 +177,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -174,6 +191,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkletSharedStorage/length",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-workletsharedstorage-length",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -195,7 +215,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -208,6 +229,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WorkletSharedStorage/remainingBudget",
           "spec_url": "https://wicg.github.io/shared-storage/#dom-workletsharedstorage-remainingbudget",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -229,7 +253,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -241,6 +266,9 @@
       "@@asyncIterator": {
         "__compat": {
           "description": "[Symbol.asyncIterator]",
+          "tags": [
+            "web-features:shared-storage"
+          ],
           "support": {
             "chrome": {
               "version_added": "117"
@@ -262,7 +290,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/WritableStream.json b/api/WritableStream.json
index 61f5078c2ff668..d0d66f147578d5 100644
--- a/api/WritableStream.json
+++ b/api/WritableStream.json
@@ -31,11 +31,8 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -50,7 +47,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -60,7 +58,7 @@
       },
       "WritableStream": {
         "__compat": {
-          "description": "<code>WritableStream()</code> constructor",
+          "description": "`WritableStream()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WritableStream/WritableStream",
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-ws-constructor④",
           "tags": [
@@ -99,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -148,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -188,7 +188,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,7 +238,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,7 +288,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -316,7 +319,7 @@
               "version_added": false
             },
             "nodejs": {
-              "version_added": false
+              "version_added": "16.5.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -326,7 +329,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WritableStreamDefaultController.json b/api/WritableStreamDefaultController.json
index 6593b1965acee8..4c613577796aa9 100644
--- a/api/WritableStreamDefaultController.json
+++ b/api/WritableStreamDefaultController.json
@@ -31,11 +31,8 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -46,7 +43,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -90,7 +88,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,7 +129,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/WritableStreamDefaultWriter.json b/api/WritableStreamDefaultWriter.json
index b2117a51c8d7c2..a9e363f8ccabe5 100644
--- a/api/WritableStreamDefaultWriter.json
+++ b/api/WritableStreamDefaultWriter.json
@@ -31,11 +31,8 @@
             },
             {
               "version_added": "16.5.0",
-              "version_removed": "18.0.0",
-              "notes": [
-                "Must be imported using either <code>require('stream/web')</code> or <code>import * from 'stream/web'</code>.",
-                "Experimental implementation."
-              ]
+              "partial_implementation": true,
+              "notes": "Available as a part of the `stream/web` module."
             }
           ],
           "oculus": "mirror",
@@ -46,7 +43,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -56,7 +54,7 @@
       },
       "WritableStreamDefaultWriter": {
         "__compat": {
-          "description": "<code>WritableStreamDefaultWriter()</code> constructor",
+          "description": "`WritableStreamDefaultWriter()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultWriter/WritableStreamDefaultWriter",
           "spec_url": "https://streams.spec.whatwg.org/#ref-for-default-writer-constructor①",
           "support": {
@@ -86,7 +84,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,7 +130,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,7 +176,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -221,7 +222,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -266,7 +268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -311,7 +314,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -356,7 +360,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -401,7 +406,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XMLDocument.json b/api/XMLDocument.json
index 0ed9266ef44378..e0e783a7e75d01 100644
--- a/api/XMLDocument.json
+++ b/api/XMLDocument.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLDocument",
         "spec_url": "https://dom.spec.whatwg.org/#xmldocument",
+        "tags": [
+          "web-features:dom"
+        ],
         "support": {
           "chrome": [
             {
@@ -13,7 +16,7 @@
               "version_added": "1",
               "version_removed": "34",
               "partial_implementation": true,
-              "notes": "Implemented as an alias for <code>Document</code>."
+              "notes": "Implemented as an alias for `Document`."
             }
           ],
           "chrome_android": "mirror",
@@ -36,7 +39,7 @@
               "version_added": "≤12.1",
               "version_removed": "21",
               "partial_implementation": true,
-              "notes": "Implemented as an alias for <code>Document</code>."
+              "notes": "Implemented as an alias for `Document`."
             }
           ],
           "opera_android": [
@@ -47,7 +50,7 @@
               "version_added": "≤12.1",
               "version_removed": "21",
               "partial_implementation": true,
-              "notes": "Implemented as an alias for <code>Document</code>."
+              "notes": "Implemented as an alias for `Document`."
             }
           ],
           "safari": [
@@ -58,7 +61,7 @@
               "version_added": "3",
               "version_removed": "10",
               "partial_implementation": true,
-              "notes": "Implemented as an alias for <code>Document</code>."
+              "notes": "Implemented as an alias for `Document`."
             }
           ],
           "safari_ios": [
@@ -69,7 +72,7 @@
               "version_added": "1",
               "version_removed": "10",
               "partial_implementation": true,
-              "notes": "Implemented as an alias for <code>Document</code>."
+              "notes": "Implemented as an alias for `Document`."
             }
           ],
           "samsunginternet_android": "mirror",
@@ -81,9 +84,10 @@
               "version_added": "1",
               "version_removed": "37",
               "partial_implementation": true,
-              "notes": "Implemented as an alias for <code>Document</code>."
+              "notes": "Implemented as an alias for `Document`."
             }
-          ]
+          ],
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/XMLHttpRequest.json b/api/XMLHttpRequest.json
index 20298b7a4d1f95..f71002c2fd6dc2 100644
--- a/api/XMLHttpRequest.json
+++ b/api/XMLHttpRequest.json
@@ -26,7 +26,7 @@
             {
               "version_added": "5",
               "partial_implementation": true,
-              "notes": "Implemented via <code>ActiveXObject('Microsoft.XMLHTTP')</code>"
+              "notes": "Implemented via `ActiveXObject('Microsoft.XMLHTTP')`"
             }
           ],
           "oculus": "mirror",
@@ -43,7 +43,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -53,7 +54,7 @@
       },
       "XMLHttpRequest": {
         "__compat": {
-          "description": "<code>XMLHttpRequest()</code> constructor",
+          "description": "`XMLHttpRequest()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/XMLHttpRequest",
           "spec_url": "https://xhr.spec.whatwg.org/#dom-xmlhttprequest",
           "tags": [
@@ -88,7 +89,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -134,7 +136,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,7 +180,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -188,7 +192,7 @@
       },
       "abort_event": {
         "__compat": {
-          "description": "<code>abort</code> event",
+          "description": "`abort` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/abort_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-abort",
@@ -226,7 +230,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -237,7 +242,7 @@
       },
       "authorization_removed_cross_origin": {
         "__compat": {
-          "description": "<code>Authorization</code> header removed from cross-origin redirects",
+          "description": "`Authorization` header removed from cross-origin redirects",
           "spec_url": "https://fetch.spec.whatwg.org/#http-redirect-fetch",
           "support": {
             "chrome": {
@@ -263,7 +268,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -274,7 +280,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/error_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-error",
@@ -312,7 +318,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -338,7 +345,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Starting from Firefox 49, empty headers are returned as empty strings in case the preference <code>network.http.keep_empty_response_headers_as_empty_string</code> is set to <code>true</code>, defaulting to <code>false</code>. Before Firefox 49 empty headers had been ignored. Since Firefox 50 the preference defaults to <code>true</code>."
+              "notes": "Starting from Firefox 49, empty headers are returned as empty strings in case the preference `network.http.keep_empty_response_headers_as_empty_string` is set to `true`, defaulting to `false`. Before Firefox 49 empty headers had been ignored. Since Firefox 50 the preference defaults to `true`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -356,7 +363,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -367,6 +375,9 @@
         "header_names_lowercase": {
           "__compat": {
             "description": "Header names returned in all lower case",
+            "tags": [
+              "web-features:xhr"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -388,7 +399,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -415,7 +427,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Starting from Firefox 49, empty headers are returned as empty strings in case the preference <code>network.http.keep_empty_response_headers_as_empty_string</code> is set to <code>true</code>, defaulting to <code>false</code>. Before Firefox 49 empty headers had been ignored. Since Firefox 50 the preference defaults to <code>true</code>."
+              "notes": "Starting from Firefox 49, empty headers are returned as empty strings in case the preference `network.http.keep_empty_response_headers_as_empty_string` is set to `true`, defaulting to `false`. Before Firefox 49 empty headers had been ignored. Since Firefox 50 the preference defaults to `true`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -433,7 +445,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -444,7 +457,7 @@
       },
       "load_event": {
         "__compat": {
-          "description": "<code>load</code> event",
+          "description": "`load` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/load_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-load",
@@ -482,7 +495,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -493,7 +507,7 @@
       },
       "loadend_event": {
         "__compat": {
-          "description": "<code>loadend</code> event",
+          "description": "`loadend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/loadend_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-loadend",
@@ -531,7 +545,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -542,7 +557,7 @@
       },
       "loadstart_event": {
         "__compat": {
-          "description": "<code>loadstart</code> event",
+          "description": "`loadstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/loadstart_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-loadstart",
@@ -578,7 +593,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -604,7 +620,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Starting in Firefox 30, synchronous requests on the main thread have been deprecated due to their negative impact on performance and the user experience. Therefore, the <code>async</code> parameter may not be <code>false</code> except in a <code>Worker</code>."
+              "notes": "Starting in Firefox 30, synchronous requests on the main thread have been deprecated due to their negative impact on performance and the user experience. Therefore, the `async` parameter may not be `false` except in a `Worker`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -622,7 +638,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -657,7 +674,7 @@
               {
                 "version_added": "5",
                 "partial_implementation": true,
-                "notes": "Implemented via <code>ActiveXObject</code>"
+                "notes": "Implemented via `ActiveXObject`"
               }
             ],
             "oculus": "mirror",
@@ -672,7 +689,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -683,7 +701,7 @@
       },
       "progress_event": {
         "__compat": {
-          "description": "<code>progress</code> event",
+          "description": "`progress` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/progress_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-progress",
@@ -723,7 +741,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -766,7 +785,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -777,7 +797,7 @@
       },
       "readystatechange_event": {
         "__compat": {
-          "description": "<code>readystatechange</code> event",
+          "description": "`readystatechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/readystatechange_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-readystatechange",
@@ -813,7 +833,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -858,7 +879,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -888,7 +910,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5",
-              "notes": "Before Internet Explorer 10, the value of <code>XMLHttpRequest.responseText</code> could be read only once the request was complete."
+              "notes": "Before Internet Explorer 10, the value of `XMLHttpRequest.responseText` could be read only once the request was complete."
             },
             "oculus": "mirror",
             "opera": {
@@ -902,7 +924,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -915,6 +938,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseType",
           "spec_url": "https://xhr.spec.whatwg.org/#the-responsetype-attribute",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "31"
@@ -956,7 +982,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -967,6 +994,9 @@
         "arraybuffer_value": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseType#arraybuffer",
+            "tags": [
+              "web-features:xhr"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -1008,7 +1038,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1020,6 +1051,9 @@
         "blob_value": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseType#blob",
+            "tags": [
+              "web-features:xhr"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -1061,7 +1095,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1073,6 +1108,9 @@
         "document_value": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseType#document",
+            "tags": [
+              "web-features:xhr"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -1114,7 +1152,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1126,6 +1165,9 @@
         "json_value": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseType#json",
+            "tags": [
+              "web-features:xhr"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -1165,7 +1207,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1179,6 +1222,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseURL",
           "spec_url": "https://xhr.spec.whatwg.org/#the-responseurl-attribute",
+          "tags": [
+            "web-features:xhr"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -1202,7 +1248,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1228,7 +1275,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 51, an error parsing the received data added a <code>&lt;parsererror&gt;</code> node to the top of the <code>Document</code> and then returned the <code>Document</code> in whatever state it happens to be in. This was inconsistent with the specification. Starting with Firefox 51, this scenario now correctly returns <code>null</code> as per the spec."
+              "notes": "Before Firefox 51, an error parsing the received data added a `&lt;parsererror&gt;` node to the top of the `Document` and then returned the `Document` in whatever state it happens to be in. This was inconsistent with the specification. Starting with Firefox 51, this scenario now correctly returns `null` as per the spec."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1250,7 +1297,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1293,7 +1341,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1337,7 +1386,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1380,7 +1430,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1423,7 +1474,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1468,7 +1520,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1481,6 +1534,9 @@
           "__compat": {
             "description": "URLSearchParams as parameter to send()",
             "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/send#URLSearchParams",
+            "tags": [
+              "web-features:xhr"
+            ],
             "support": {
               "chrome": {
                 "version_added": "59"
@@ -1507,12 +1563,13 @@
                   "version_added": "10.1",
                   "version_removed": "15",
                   "partial_implementation": true,
-                  "notes": "Doesn't send the correct <code>Content-Type</code> header by default. See <a href='https://webkit.org/b/227477'>bug 227477</a>."
+                  "notes": "Doesn't send the correct `Content-Type` header by default. See [bug 227477](https://webkit.org/b/227477)."
                 }
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1528,7 +1585,7 @@
           "spec_url": "https://wicg.github.io/attribution-reporting-api/#dom-xmlhttprequest-setattributionreporting",
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "125"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -1547,7 +1604,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1580,7 +1638,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1623,7 +1682,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1653,7 +1713,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "7",
-              "notes": "Internet Explorer version 5 and 6 supported ajax calls using <code>ActiveXObject()</code>"
+              "notes": "Internet Explorer version 5 and 6 supported ajax calls using `ActiveXObject()`"
             },
             "oculus": "mirror",
             "opera": {
@@ -1667,7 +1727,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1697,7 +1758,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "7",
-              "notes": "Internet Explorer version 5 and 6 supported ajax calls using <code>ActiveXObject()</code>"
+              "notes": "Internet Explorer version 5 and 6 supported ajax calls using `ActiveXObject()`"
             },
             "oculus": "mirror",
             "opera": {
@@ -1711,7 +1772,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1766,7 +1828,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1777,7 +1840,7 @@
       },
       "timeout_event": {
         "__compat": {
-          "description": "<code>timeout</code> event",
+          "description": "`timeout` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/timeout_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-timeout",
@@ -1811,7 +1874,8 @@
             "samsunginternet_android": {
               "version_added": "1.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1856,7 +1920,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1882,12 +1947,12 @@
             },
             "firefox": {
               "version_added": "3.5",
-              "notes": "Starting with Firefox 11, it's no longer supported to use the <code>withCredentials</code> attribute when performing synchronous requests. Attempting to do so throws an <code>NS_ERROR_DOM_INVALID_ACCESS_ERR</code> exception."
+              "notes": "Starting with Firefox 11, it's no longer supported to use the `withCredentials` attribute when performing synchronous requests. Attempting to do so throws an `NS_ERROR_DOM_INVALID_ACCESS_ERR` exception."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
-              "notes": "Internet Explorer versions 8 and 9 supported cross-domain requests (CORS) using <a href='https://developer.mozilla.org/docs/Web/API/XDomainRequest'><code>XDomainRequest</code></a>."
+              "notes": "Internet Explorer versions 8 and 9 supported cross-domain requests (CORS) using [`XDomainRequest`](https://developer.mozilla.org/docs/Web/API/XDomainRequest)."
             },
             "oculus": "mirror",
             "opera": {
@@ -1903,7 +1968,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XMLHttpRequestEventTarget.json b/api/XMLHttpRequestEventTarget.json
index b556004c7cfb53..4a94890ea45a11 100644
--- a/api/XMLHttpRequestEventTarget.json
+++ b/api/XMLHttpRequestEventTarget.json
@@ -34,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/XMLHttpRequestUpload.json b/api/XMLHttpRequestUpload.json
index b76eddc131b540..d0cd239154c241 100644
--- a/api/XMLHttpRequestUpload.json
+++ b/api/XMLHttpRequestUpload.json
@@ -38,7 +38,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,7 +49,7 @@
       },
       "abort_event": {
         "__compat": {
-          "description": "<code>abort</code> event",
+          "description": "`abort` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequestUpload/abort_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-abort",
@@ -88,7 +89,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,7 +101,7 @@
       },
       "error_event": {
         "__compat": {
-          "description": "<code>error</code> event",
+          "description": "`error` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequestUpload/error_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-error",
@@ -139,7 +141,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,7 +153,7 @@
       },
       "load_event": {
         "__compat": {
-          "description": "<code>load</code> event",
+          "description": "`load` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequestUpload/load_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-load",
@@ -190,7 +193,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -201,7 +205,7 @@
       },
       "loadend_event": {
         "__compat": {
-          "description": "<code>loadend</code> event",
+          "description": "`loadend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequestUpload/loadend_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-loadend",
@@ -239,7 +243,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -250,7 +255,7 @@
       },
       "loadstart_event": {
         "__compat": {
-          "description": "<code>loadstart</code> event",
+          "description": "`loadstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequestUpload/loadstart_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-loadstart",
@@ -288,7 +293,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -299,7 +305,7 @@
       },
       "progress_event": {
         "__compat": {
-          "description": "<code>progress</code> event",
+          "description": "`progress` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequestUpload/progress_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-progress",
@@ -339,7 +345,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -350,7 +357,7 @@
       },
       "timeout_event": {
         "__compat": {
-          "description": "<code>timeout</code> event",
+          "description": "`timeout` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequestUpload/timeout_event",
           "spec_url": [
             "https://xhr.spec.whatwg.org/#event-xhr-timeout",
@@ -384,7 +391,8 @@
             "samsunginternet_android": {
               "version_added": "1.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XMLSerializer.json b/api/XMLSerializer.json
index de5fbedde23eeb..9d27216803fdb8 100644
--- a/api/XMLSerializer.json
+++ b/api/XMLSerializer.json
@@ -36,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,7 +47,7 @@
       },
       "XMLSerializer": {
         "__compat": {
-          "description": "<code>XMLSerializer()</code> constructor",
+          "description": "`XMLSerializer()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XMLSerializer/XMLSerializer",
           "spec_url": "https://w3c.github.io/DOM-Parsing/#dom-xmlserializer-constructor",
           "tags": [
@@ -81,7 +82,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -126,7 +128,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XPathEvaluator.json b/api/XPathEvaluator.json
index d2301fceb9f841..03bc9d5ccec063 100644
--- a/api/XPathEvaluator.json
+++ b/api/XPathEvaluator.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathEvaluator",
         "spec_url": "https://dom.spec.whatwg.org/#interface-xpathevaluator",
+        "tags": [
+          "web-features:xpath"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,9 +47,12 @@
       },
       "XPathEvaluator": {
         "__compat": {
-          "description": "<code>XPathEvaluator()</code> constructor",
+          "description": "`XPathEvaluator()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathEvaluator/XPathEvaluator",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathevaluator-xpathevaluator",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -75,7 +82,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,6 +96,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathEvaluator/createExpression",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathevaluatorbase-createexpression",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -117,7 +128,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -159,7 +171,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -172,6 +185,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathEvaluator/evaluate",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathevaluatorbase-evaluate",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -201,7 +217,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XPathExpression.json b/api/XPathExpression.json
index a97b6b0b99577f..74233db9b19e4a 100644
--- a/api/XPathExpression.json
+++ b/api/XPathExpression.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathExpression",
         "spec_url": "https://dom.spec.whatwg.org/#interface-xpathexpression",
+        "tags": [
+          "web-features:xpath"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathExpression/evaluate",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathexpression-evaluate",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -74,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XPathResult.json b/api/XPathResult.json
index 66f75c7e8aee7b..fe5787fa70d82a 100644
--- a/api/XPathResult.json
+++ b/api/XPathResult.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult",
         "spec_url": "https://dom.spec.whatwg.org/#interface-xpathresult",
+        "tags": [
+          "web-features:xpath"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
             "version_added": "1"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -45,6 +49,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult/booleanValue",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathresult-booleanvalue",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -74,7 +81,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -87,6 +95,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult/invalidIteratorState",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathresult-invaliditeratorstate",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -118,7 +129,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,6 +143,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult/iterateNext",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathresult-iteratenext",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -160,7 +175,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -173,6 +189,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult/numberValue",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathresult-numbervalue",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -202,7 +221,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -215,6 +235,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult/resultType",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathresult-resulttype",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -246,7 +269,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -259,6 +283,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult/singleNodeValue",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathresult-singlenodevalue",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -288,7 +315,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -301,6 +329,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult/snapshotItem",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathresult-snapshotitem-index-index",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -330,7 +361,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -343,6 +375,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult/snapshotLength",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathresult-snapshotlength",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -372,7 +407,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -385,6 +421,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XPathResult/stringValue",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xpathresult-stringvalue",
+          "tags": [
+            "web-features:xpath"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -414,7 +453,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRAnchor.json b/api/XRAnchor.json
index 29732fd7e1ccbe..5dda71526c425c 100644
--- a/api/XRAnchor.json
+++ b/api/XRAnchor.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRAnchor",
         "spec_url": "https://immersive-web.github.io/anchors/#xr-anchor",
+        "tags": [
+          "web-features:webxr-anchors"
+        ],
         "support": {
           "chrome": {
             "version_added": "85"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRAnchor/anchorSpace",
           "spec_url": "https://immersive-web.github.io/anchors/#dom-xranchor-anchorspace",
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRAnchor/delete",
           "spec_url": "https://immersive-web.github.io/anchors/#dom-xranchor-delete",
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -98,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRAnchorSet.json b/api/XRAnchorSet.json
index 774d8c8af8c9a5..8874f8ee487e75 100644
--- a/api/XRAnchorSet.json
+++ b/api/XRAnchorSet.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRAnchorSet",
         "spec_url": "https://immersive-web.github.io/anchors/#xranchorset",
+        "tags": [
+          "web-features:webxr-anchors"
+        ],
         "support": {
           "chrome": {
             "version_added": "85"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +42,9 @@
       },
       "entries": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -60,7 +68,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -71,6 +80,9 @@
       },
       "forEach": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -94,7 +106,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -105,6 +118,9 @@
       },
       "has": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -128,7 +144,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -139,6 +156,9 @@
       },
       "keys": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -162,7 +182,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -173,6 +194,9 @@
       },
       "size": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -196,7 +220,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -207,6 +232,9 @@
       },
       "values": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -230,7 +258,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -242,6 +271,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -265,7 +297,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRBoundedReferenceSpace.json b/api/XRBoundedReferenceSpace.json
index 46848633a62502..cfd8176480fb62 100644
--- a/api/XRBoundedReferenceSpace.json
+++ b/api/XRBoundedReferenceSpace.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRBoundedReferenceSpace",
         "spec_url": "https://immersive-web.github.io/webxr/#xrboundedreferencespace-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRBoundedReferenceSpace/boundsGeometry",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrboundedreferencespace-boundsgeometry",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -66,7 +74,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRCPUDepthInformation.json b/api/XRCPUDepthInformation.json
index 35e74ab7660ae5..f3be1738dafc91 100644
--- a/api/XRCPUDepthInformation.json
+++ b/api/XRCPUDepthInformation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCPUDepthInformation",
         "spec_url": "https://immersive-web.github.io/depth-sensing/#xr-cpu-depth-info-section",
+        "tags": [
+          "web-features:webxr-depth-sensing"
+        ],
         "support": {
           "chrome": {
             "version_added": "90"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCPUDepthInformation/data",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrcpudepthinformation-data",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCPUDepthInformation/getDepthInMeters",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrcpudepthinformation-getdepthinmeters",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -98,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRCamera.json b/api/XRCamera.json
index 6fdb62a26fba6b..f44c62f6d592f3 100644
--- a/api/XRCamera.json
+++ b/api/XRCamera.json
@@ -3,6 +3,9 @@
     "XRCamera": {
       "__compat": {
         "spec_url": "https://immersive-web.github.io/raw-camera-access/#xrcamera",
+        "tags": [
+          "web-features:webxr-camera"
+        ],
         "support": {
           "chrome": {
             "version_added": "107"
@@ -25,8 +28,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,6 +42,9 @@
       "height": {
         "__compat": {
           "spec_url": "https://immersive-web.github.io/raw-camera-access/#dom-xrcamera-height",
+          "tags": [
+            "web-features:webxr-camera"
+          ],
           "support": {
             "chrome": {
               "version_added": "107"
@@ -60,7 +68,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -72,6 +81,9 @@
       "width": {
         "__compat": {
           "spec_url": "https://immersive-web.github.io/raw-camera-access/#dom-xrcamera-width",
+          "tags": [
+            "web-features:webxr-camera"
+          ],
           "support": {
             "chrome": {
               "version_added": "107"
@@ -95,7 +107,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRCompositionLayer.json b/api/XRCompositionLayer.json
index 9d649b746c17bd..e422fac609c9b0 100644
--- a/api/XRCompositionLayer.json
+++ b/api/XRCompositionLayer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCompositionLayer",
         "spec_url": "https://immersive-web.github.io/layers/#xrcompositionlayertype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCompositionLayer/blendTextureSourceAlpha",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcompositionlayer-blendtexturesourcealpha",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCompositionLayer/destroy",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcompositionlayer-destroy",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCompositionLayer/layout",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcompositionlayer-layout",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCompositionLayer/mipLevels",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcompositionlayer-miplevels",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -170,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -183,6 +203,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCompositionLayer/needsRedraw",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcompositionlayer-needsredraw",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -206,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRCubeLayer.json b/api/XRCubeLayer.json
index baede72d25a6ae..f587e659c36c7d 100644
--- a/api/XRCubeLayer.json
+++ b/api/XRCubeLayer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCubeLayer",
         "spec_url": "https://immersive-web.github.io/layers/#xcubelayertype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCubeLayer/orientation",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcubelayer-orientation",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -73,9 +81,12 @@
       },
       "redraw_event": {
         "__compat": {
-          "description": "<code>redraw</code> event",
+          "description": "`redraw` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCubeLayer/redraw_event",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcubelayer-onredraw",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -99,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -112,6 +124,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCubeLayer/space",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcubelayer-space",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -135,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRCylinderLayer.json b/api/XRCylinderLayer.json
index 7c2e5ffd1ed4f4..ab6239512ab379 100644
--- a/api/XRCylinderLayer.json
+++ b/api/XRCylinderLayer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCylinderLayer",
         "spec_url": "https://immersive-web.github.io/layers/#xrcylinderayertype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCylinderLayer/aspectRatio",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcylinderlayer-aspectratio",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCylinderLayer/centralAngle",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcylinderlayer-centralangle",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCylinderLayer/radius",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcylinderlayer-radius",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -145,9 +161,12 @@
       },
       "redraw_event": {
         "__compat": {
-          "description": "<code>redraw</code> event",
+          "description": "`redraw` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCylinderLayer/redraw_event",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcylinderlayer-onredraw",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -171,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -184,6 +204,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCylinderLayer/space",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcylinderlayer-space",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -207,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -220,6 +244,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRCylinderLayer/transform",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrcylinderlayer-transform",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -243,7 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRDepthInformation.json b/api/XRDepthInformation.json
index 9ff2ea4013f73e..01f2fd9c90d700 100644
--- a/api/XRDepthInformation.json
+++ b/api/XRDepthInformation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRDepthInformation",
         "spec_url": "https://immersive-web.github.io/depth-sensing/#xrdepthinformation",
+        "tags": [
+          "web-features:webxr-depth-sensing"
+        ],
         "support": {
           "chrome": {
             "version_added": "90"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRDepthInformation/height",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrdepthinformation-height",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRDepthInformation/normDepthBufferFromNormView",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrdepthinformation-normdepthbufferfromnormview",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -98,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +124,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRDepthInformation/rawValueToMeters",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrdepthinformation-rawvaluetometers",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -134,7 +150,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,6 +164,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRDepthInformation/width",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrdepthinformation-width",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -170,7 +190,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XREquirectLayer.json b/api/XREquirectLayer.json
index c1cf3498f8df91..7d9ff08210d5e5 100644
--- a/api/XREquirectLayer.json
+++ b/api/XREquirectLayer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XREquirectLayer",
         "spec_url": "https://immersive-web.github.io/layers/#xrequirectlayertype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XREquirectLayer/centralHorizontalAngle",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrequirectlayer-centralhorizontalangle",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XREquirectLayer/lowerVerticalAngle",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrequirectlayer-lowerverticalangle",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XREquirectLayer/radius",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrequirectlayer-radius",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -145,9 +161,12 @@
       },
       "redraw_event": {
         "__compat": {
-          "description": "<code>redraw</code> event",
+          "description": "`redraw` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XREquirectLayer/redraw_event",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrequirectlayer-onredraw",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -171,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -184,6 +204,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XREquirectLayer/space",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrequirectlayer-space",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -207,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -220,6 +244,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XREquirectLayer/transform",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrequirectlayer-transform",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -243,7 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -256,6 +284,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XREquirectLayer/upperVerticalAngle",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrequirectlayer-upperverticalangle",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -279,7 +310,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRFrame.json b/api/XRFrame.json
index c7c8697966e6bf..64e90e99717268 100644
--- a/api/XRFrame.json
+++ b/api/XRFrame.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame",
         "spec_url": "https://immersive-web.github.io/webxr/#xrframe-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -41,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/createAnchor",
           "spec_url": "https://immersive-web.github.io/anchors/#dom-xrframe-createanchor",
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -64,7 +72,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -77,9 +86,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/fillJointRadii",
           "spec_url": "https://immersive-web.github.io/webxr-hand-input/#dom-xrframe-filljointradii",
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -104,7 +116,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -117,9 +132,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/fillPoses",
           "spec_url": "https://immersive-web.github.io/webxr-hand-input/#dom-xrframe-fillposes",
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -144,7 +162,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -157,6 +178,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/getDepthInformation",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrframe-getdepthinformation",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -180,7 +204,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -193,6 +218,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/getHitTestResults",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrframe-gethittestresults",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -216,7 +244,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -229,6 +258,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/getHitTestResultsForTransientInput",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrframe-gethittestresultsfortransientinput",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -252,7 +284,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -265,9 +298,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/getJointPose",
           "spec_url": "https://immersive-web.github.io/webxr-hand-input/#dom-xrframe-getjointpose",
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -292,7 +328,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -305,6 +344,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/getLightEstimate",
           "spec_url": "https://immersive-web.github.io/lighting-estimation/#dom-xrframe-getlightestimate",
+          "tags": [
+            "web-features:webxr-lighting-estimation"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -328,7 +370,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -339,9 +382,12 @@
       },
       "getPose": {
         "__compat": {
-          "description": "<code>getPose()</code>",
+          "description": "`getPose()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/getPose",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrframe-getpose",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -367,7 +413,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -378,9 +425,12 @@
       },
       "getViewerPose": {
         "__compat": {
-          "description": "<code>getViewerPose()</code>",
+          "description": "`getViewerPose()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/getViewerPose",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrframe-getviewerpose",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -406,7 +456,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -419,6 +470,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/session",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrframe-session",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -444,7 +498,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -457,6 +512,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRFrame/trackedAnchors",
           "spec_url": "https://immersive-web.github.io/anchors/#dom-xrframe-trackedanchors",
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -480,7 +538,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRHand.json b/api/XRHand.json
index c6944babb24f41..852233f9e131a2 100644
--- a/api/XRHand.json
+++ b/api/XRHand.json
@@ -4,9 +4,12 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRHand",
         "spec_url": "https://immersive-web.github.io/webxr-hand-input/#xrhand-interface",
+        "tags": [
+          "web-features:webxr-hand-input"
+        ],
         "support": {
           "chrome": {
-            "version_added": false
+            "version_added": "131"
           },
           "chrome_android": "mirror",
           "edge": {
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,9 +45,12 @@
       },
       "entries": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -66,7 +73,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -77,9 +85,12 @@
       },
       "forEach": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -102,7 +113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -113,9 +125,12 @@
       },
       "get": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -138,7 +153,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -149,9 +165,12 @@
       },
       "keys": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -174,7 +193,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -185,9 +205,12 @@
       },
       "size": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -210,7 +233,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -221,9 +245,12 @@
       },
       "values": {
         "__compat": {
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -246,7 +273,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -258,9 +286,12 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -283,7 +314,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRHitTestResult.json b/api/XRHitTestResult.json
index a298bc9a30f3cd..e66c9476c56705 100644
--- a/api/XRHitTestResult.json
+++ b/api/XRHitTestResult.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRHitTestResult",
         "spec_url": "https://immersive-web.github.io/hit-test/#xr-hit-test-result-interface",
+        "tags": [
+          "web-features:webxr-hit-test"
+        ],
         "support": {
           "chrome": {
             "version_added": "81"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRHitTestResult/createAnchor",
           "spec_url": "https://immersive-web.github.io/anchors/#dom-xrhittestresult-createanchor",
+          "tags": [
+            "web-features:webxr-anchors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRHitTestResult/getPose",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrhittestresult-getpose",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -98,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRHitTestSource.json b/api/XRHitTestSource.json
index 618c2089f824cc..50e027493cd1b0 100644
--- a/api/XRHitTestSource.json
+++ b/api/XRHitTestSource.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRHitTestSource",
         "spec_url": "https://immersive-web.github.io/hit-test/#hit-test-source-interface",
+        "tags": [
+          "web-features:webxr-hit-test"
+        ],
         "support": {
           "chrome": {
             "version_added": "81"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRHitTestSource/cancel",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrhittestsource-cancel",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRInputSource.json b/api/XRInputSource.json
index 4d85cb073e705d..bfae81723ec62d 100644
--- a/api/XRInputSource.json
+++ b/api/XRInputSource.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSource",
         "spec_url": "https://immersive-web.github.io/webxr/#xrinputsource-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSource/gamepad",
           "spec_url": "https://immersive-web.github.io/webxr-gamepads-module/#dom-xrinputsource-gamepad",
+          "tags": [
+            "web-features:webxr-gamepads"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -66,7 +74,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,6 +88,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSource/gripSpace",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsource-gripspace",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -104,7 +116,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,9 +130,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSource/hand",
           "spec_url": "https://immersive-web.github.io/webxr-hand-input/#dom-xrinputsource-hand",
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -144,7 +160,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -157,6 +176,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSource/handedness",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsource-handedness",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -182,7 +204,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -195,6 +218,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSource/profiles",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsource-profiles",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -220,7 +246,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -233,6 +260,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSource/targetRayMode",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsource-targetraymode",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -258,7 +288,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -271,6 +302,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSource/targetRaySpace",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsource-targetrayspace",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -296,7 +330,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRInputSourceArray.json b/api/XRInputSourceArray.json
index 52ff8ce0082743..62e461043b9a0e 100644
--- a/api/XRInputSourceArray.json
+++ b/api/XRInputSourceArray.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceArray",
         "spec_url": "https://immersive-web.github.io/webxr/#xrinputsourcearray-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,8 +44,11 @@
       },
       "entries": {
         "__compat": {
-          "description": "<code>entries()</code>",
+          "description": "`entries()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceArray/entries",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -66,7 +74,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -77,8 +86,11 @@
       },
       "forEach": {
         "__compat": {
-          "description": "<code>forEach()</code>",
+          "description": "`forEach()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceArray/forEach",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -104,7 +116,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -116,6 +129,9 @@
       "keys": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceArray/keys",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -141,7 +157,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -154,6 +171,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceArray/length",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsourcearray-length",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -179,7 +199,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -191,6 +212,9 @@
       "values": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceArray/values",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -216,7 +240,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -228,6 +253,9 @@
       "@@iterator": {
         "__compat": {
           "description": "[Symbol.iterator]",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -251,7 +279,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRInputSourceEvent.json b/api/XRInputSourceEvent.json
index 61603c20ac65f5..4ca160548ec065 100644
--- a/api/XRInputSourceEvent.json
+++ b/api/XRInputSourceEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceEvent",
         "spec_url": "https://immersive-web.github.io/webxr/#xrinputsourceevent-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,9 +44,12 @@
       },
       "XRInputSourceEvent": {
         "__compat": {
-          "description": "<code>XRInputSourceEvent()</code> constructor",
+          "description": "`XRInputSourceEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceEvent/XRInputSourceEvent",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsourceevent-xrinputsourceevent",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -67,7 +75,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -80,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceEvent/frame",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsourceevent-frame",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -105,7 +117,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +131,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourceEvent/inputSource",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsourceevent-inputsource",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -143,7 +159,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRInputSourcesChangeEvent.json b/api/XRInputSourcesChangeEvent.json
index 013b69ccbf3a4d..eeebd3cb3fd450 100644
--- a/api/XRInputSourcesChangeEvent.json
+++ b/api/XRInputSourcesChangeEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourcesChangeEvent",
         "spec_url": "https://immersive-web.github.io/webxr/#xrinputsourceschangeevent-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,9 +44,12 @@
       },
       "XRInputSourcesChangeEvent": {
         "__compat": {
-          "description": "<code>XRInputSourcesChangeEvent()</code> constructor",
+          "description": "`XRInputSourcesChangeEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourcesChangeEvent/XRInputSourcesChangeEvent",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsourceschangeevent-xrinputsourceschangeevent",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -67,7 +75,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -80,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourcesChangeEvent/added",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsourceschangeevent-added",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -105,7 +117,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +131,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourcesChangeEvent/removed",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsourceschangeevent-removed",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -143,7 +159,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,6 +173,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRInputSourcesChangeEvent/session",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrinputsourceschangeevent-session",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -181,7 +201,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRJointPose.json b/api/XRJointPose.json
index 5e600c01039163..3e829df0449493 100644
--- a/api/XRJointPose.json
+++ b/api/XRJointPose.json
@@ -4,9 +4,12 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRJointPose",
         "spec_url": "https://immersive-web.github.io/webxr-hand-input/#xrjointpose-interface",
+        "tags": [
+          "web-features:webxr-hand-input"
+        ],
         "support": {
           "chrome": {
-            "version_added": false
+            "version_added": "131"
           },
           "chrome_android": "mirror",
           "edge": {
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,9 +47,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRJointPose/radius",
           "spec_url": "https://immersive-web.github.io/webxr-hand-input/#dom-xrjointpose-radius",
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRJointSpace.json b/api/XRJointSpace.json
index ef9a5f39653fe6..2bea4da01f7404 100644
--- a/api/XRJointSpace.json
+++ b/api/XRJointSpace.json
@@ -4,9 +4,12 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRJointSpace",
         "spec_url": "https://immersive-web.github.io/webxr-hand-input/#xrhand-interface",
+        "tags": [
+          "web-features:webxr-hand-input"
+        ],
         "support": {
           "chrome": {
-            "version_added": false
+            "version_added": "131"
           },
           "chrome_android": "mirror",
           "edge": {
@@ -31,7 +34,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,9 +47,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRJointSpace/jointName",
           "spec_url": "https://immersive-web.github.io/webxr-hand-input/#dom-xrjointspace-jointname",
+          "tags": [
+            "web-features:webxr-hand-input"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": {
@@ -70,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRLayer.json b/api/XRLayer.json
index 5cf1adc40cecf1..76b39cb4b980ac 100644
--- a/api/XRLayer.json
+++ b/api/XRLayer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLayer",
         "spec_url": "https://immersive-web.github.io/webxr/#xrlayer-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "84"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
diff --git a/api/XRLayerEvent.json b/api/XRLayerEvent.json
index dde7d5f6377bb8..63e95794c455fe 100644
--- a/api/XRLayerEvent.json
+++ b/api/XRLayerEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLayerEvent",
         "spec_url": "https://immersive-web.github.io/layers/#xrlayerevent-interface",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +41,12 @@
       },
       "XRLayerEvent": {
         "__compat": {
-          "description": "<code>XRLayerEvent()</code> constructor",
+          "description": "`XRLayerEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLayerEvent/XRLayerEvent",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrlayerevent-xrlayerevent",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -63,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -76,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLayerEvent/layer",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrlayerevent-layer",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -99,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRLightEstimate.json b/api/XRLightEstimate.json
index 1a6fb65d8189c4..ecde5bb7a01a1f 100644
--- a/api/XRLightEstimate.json
+++ b/api/XRLightEstimate.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLightEstimate",
         "spec_url": "https://immersive-web.github.io/lighting-estimation/#xrlightestimate-interface",
+        "tags": [
+          "web-features:webxr-lighting-estimation"
+        ],
         "support": {
           "chrome": {
             "version_added": "90"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLightEstimate/primaryLightDirection",
           "spec_url": "https://immersive-web.github.io/lighting-estimation/#dom-xrlightestimate-primarylightdirection",
+          "tags": [
+            "web-features:webxr-lighting-estimation"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLightEstimate/primaryLightIntensity",
           "spec_url": "https://immersive-web.github.io/lighting-estimation/#dom-xrlightestimate-primarylightintensity",
+          "tags": [
+            "web-features:webxr-lighting-estimation"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -98,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +124,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLightEstimate/sphericalHarmonicsCoefficients",
           "spec_url": "https://immersive-web.github.io/lighting-estimation/#dom-xrlightestimate-sphericalharmonicscoefficients",
+          "tags": [
+            "web-features:webxr-lighting-estimation"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -134,7 +150,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRLightProbe.json b/api/XRLightProbe.json
index 816c51b1bc2538..879eb46f08a20e 100644
--- a/api/XRLightProbe.json
+++ b/api/XRLightProbe.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLightProbe",
         "spec_url": "https://immersive-web.github.io/lighting-estimation/#xrlightprobe-interface",
+        "tags": [
+          "web-features:webxr-lighting-estimation"
+        ],
         "support": {
           "chrome": {
             "version_added": "90"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLightProbe/probeSpace",
           "spec_url": "https://immersive-web.github.io/lighting-estimation/#dom-xrlightprobe-probespace",
+          "tags": [
+            "web-features:webxr-lighting-estimation"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -73,12 +82,15 @@
       },
       "reflectionchange_event": {
         "__compat": {
-          "description": "<code>reflectionchange</code> event",
+          "description": "`reflectionchange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRLightProbe/reflectionchange_event",
           "spec_url": [
             "https://immersive-web.github.io/lighting-estimation/#eventdef-xrlightprobe-reflectionchange",
             "https://immersive-web.github.io/lighting-estimation/#dom-xrlightprobe-onreflectionchange"
           ],
+          "tags": [
+            "web-features:webxr-lighting-estimation"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -102,7 +114,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRMediaBinding.json b/api/XRMediaBinding.json
index b54555473aa8cf..5da920e952bde2 100644
--- a/api/XRMediaBinding.json
+++ b/api/XRMediaBinding.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRMediaBinding",
         "spec_url": "https://immersive-web.github.io/layers/#XRWebGLBindingtype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +41,12 @@
       },
       "XRMediaBinding": {
         "__compat": {
-          "description": "<code>XRMediaBinding()</code> constructor",
+          "description": "`XRMediaBinding()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRMediaBinding/XRMediaBinding",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrmediabinding-xrmediabinding",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -63,7 +70,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -76,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRMediaBinding/createCylinderLayer",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrmediabinding-createcylinderlayer",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -99,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -112,6 +124,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRMediaBinding/createEquirectLayer",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrmediabinding-createequirectlayer",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -135,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -148,6 +164,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRMediaBinding/createQuadLayer",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrmediabinding-createquadlayer",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -171,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRPose.json b/api/XRPose.json
index a9a4ce5edd3f55..06bbb183b70b50 100644
--- a/api/XRPose.json
+++ b/api/XRPose.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRPose",
         "spec_url": "https://immersive-web.github.io/webxr/#xrpose-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,10 +46,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRPose/angularVelocity",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrpose-angularvelocity",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/1202213"
+              "impl_url": "https://crbug.com/40762775"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -67,7 +75,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -80,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRPose/emulatedPosition",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrpose-emulatedposition",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -105,7 +117,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,10 +131,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRPose/linearVelocity",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrpose-linearvelocity",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/1202213"
+              "impl_url": "https://crbug.com/40762775"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -144,7 +160,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -157,6 +174,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRPose/transform",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrpose-transform",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -182,7 +202,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRProjectionLayer.json b/api/XRProjectionLayer.json
index 93c13bdb07f418..a048aaff710319 100644
--- a/api/XRProjectionLayer.json
+++ b/api/XRProjectionLayer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRProjectionLayer",
         "spec_url": "https://immersive-web.github.io/layers/#xrprojectionlayertype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRProjectionLayer/fixedFoveation",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrprojectionlayer-fixedfoveation",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRProjectionLayer/ignoreDepthValues",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrprojectionlayer-ignoredepthvalues",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRProjectionLayer/textureArrayLength",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrprojectionlayer-texturearraylength",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRProjectionLayer/textureHeight",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrprojectionlayer-textureheight",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -170,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -183,6 +203,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRProjectionLayer/textureWidth",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrprojectionlayer-texturewidth",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -206,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRQuadLayer.json b/api/XRQuadLayer.json
index c84cbf5c2673d6..44c13f1e2707eb 100644
--- a/api/XRQuadLayer.json
+++ b/api/XRQuadLayer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRQuadLayer",
         "spec_url": "https://immersive-web.github.io/layers/#xrquadlayertype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRQuadLayer/height",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrquadlayer-height",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -73,9 +81,12 @@
       },
       "redraw_event": {
         "__compat": {
-          "description": "<code>redraw</code> event",
+          "description": "`redraw` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRQuadLayer/redraw_event",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrquadlayer-onredraw",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -99,7 +110,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -112,6 +124,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRQuadLayer/space",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrquadlayer-space",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -135,7 +150,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -148,6 +164,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRQuadLayer/transform",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrquadlayer-transform",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -171,7 +190,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -184,6 +204,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRQuadLayer/width",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrquadlayer-width",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -207,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRRay.json b/api/XRRay.json
index 3199c0b8bfa30f..31b74628bf37ee 100644
--- a/api/XRRay.json
+++ b/api/XRRay.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRay",
         "spec_url": "https://immersive-web.github.io/hit-test/#xrray-interface",
+        "tags": [
+          "web-features:webxr-hit-test"
+        ],
         "support": {
           "chrome": {
             "version_added": "81"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,9 +42,12 @@
       },
       "XRRay": {
         "__compat": {
-          "description": "<code>XRRay()</code> constructor",
+          "description": "`XRRay()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRay/XRRay",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrray-xrray",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -63,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -76,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRay/direction",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrray-direction",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -99,7 +111,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -112,6 +125,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRay/matrix",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrray-matrix",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -135,7 +151,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -148,6 +165,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRay/origin",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrray-origin",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -171,7 +191,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRReferenceSpace.json b/api/XRReferenceSpace.json
index 121d10cc5d209b..122c9c646f4bf4 100644
--- a/api/XRReferenceSpace.json
+++ b/api/XRReferenceSpace.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRReferenceSpace",
         "spec_url": "https://immersive-web.github.io/webxr/#xrreferencespace-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,9 +44,12 @@
       },
       "getOffsetReferenceSpace": {
         "__compat": {
-          "description": "<code>getOffsetReferenceSpace()</code>",
+          "description": "`getOffsetReferenceSpace()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRReferenceSpace/getOffsetReferenceSpace",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrreferencespace-getoffsetreferencespace",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -67,7 +75,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,12 +87,15 @@
       },
       "reset_event": {
         "__compat": {
-          "description": "<code>reset</code> event",
+          "description": "`reset` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRReferenceSpace/reset_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrreferencespace-reset",
             "https://immersive-web.github.io/webxr/#dom-xrreferencespace-onreset"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -109,7 +121,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRReferenceSpaceEvent.json b/api/XRReferenceSpaceEvent.json
index 7688f55fc4b997..1a16595e241fae 100644
--- a/api/XRReferenceSpaceEvent.json
+++ b/api/XRReferenceSpaceEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRReferenceSpaceEvent",
         "spec_url": "https://immersive-web.github.io/webxr/#xrreferencespaceevent-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,9 +44,12 @@
       },
       "XRReferenceSpaceEvent": {
         "__compat": {
-          "description": "<code>XRReferenceSpaceEvent()</code> constructor",
+          "description": "`XRReferenceSpaceEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRReferenceSpaceEvent/XRReferenceSpaceEvent",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrreferencespaceevent-xrreferencespaceevent",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -67,7 +75,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -80,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRReferenceSpaceEvent/referenceSpace",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrreferencespaceevent-referencespace",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -105,7 +117,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +131,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRReferenceSpaceEvent/transform",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrreferencespaceevent-transform",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -143,7 +159,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRRenderState.json b/api/XRRenderState.json
index 592a9ed57e3543..5a0c422dc4f32e 100644
--- a/api/XRRenderState.json
+++ b/api/XRRenderState.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRenderState",
         "spec_url": "https://immersive-web.github.io/webxr/#xrrenderstate-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRenderState/baseLayer",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrrenderstate-baselayer",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRenderState/depthFar",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrrenderstate-depthfar",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -98,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +124,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRenderState/depthNear",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrrenderstate-depthnear",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -134,7 +150,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,6 +164,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRenderState/inlineVerticalFieldOfView",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrrenderstate-inlineverticalfieldofview",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -170,7 +190,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -183,6 +204,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRenderState/layers",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrrenderstate-layers",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -206,7 +230,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRRigidTransform.json b/api/XRRigidTransform.json
index 4c7314f22fd95e..da661343753c93 100644
--- a/api/XRRigidTransform.json
+++ b/api/XRRigidTransform.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRigidTransform",
         "spec_url": "https://immersive-web.github.io/webxr/#xrrigidtransform-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,9 +44,12 @@
       },
       "XRRigidTransform": {
         "__compat": {
-          "description": "<code>XRRigidTransform()</code> constructor",
+          "description": "`XRRigidTransform()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRigidTransform/XRRigidTransform",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrrigidtransform-xrrigidtransform",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -67,7 +75,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -80,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRigidTransform/inverse",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrrigidtransform-inverse",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -105,7 +117,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +131,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRigidTransform/matrix",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrrigidtransform-matrix",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -143,7 +159,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -156,6 +173,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRigidTransform/orientation",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrrigidtransform-orientation",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -181,7 +201,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -194,6 +215,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRRigidTransform/position",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrrigidtransform-position",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -219,7 +243,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRSession.json b/api/XRSession.json
index acd453d5b4c107..e62734564b63da 100644
--- a/api/XRSession.json
+++ b/api/XRSession.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession",
         "spec_url": "https://immersive-web.github.io/webxr/#xrsession-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,9 +44,12 @@
       },
       "cancelAnimationFrame": {
         "__compat": {
-          "description": "<code>cancelAnimationFrame()</code>",
+          "description": "`cancelAnimationFrame()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/cancelAnimationFrame",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsession-cancelanimationframe",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -67,7 +75,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -80,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/depthDataFormat",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrsession-depthdataformat",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -103,7 +115,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -116,6 +129,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/depthUsage",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrsession-depthusage",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -139,7 +155,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -152,6 +169,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/domOverlayState",
           "spec_url": "https://immersive-web.github.io/dom-overlays/#dom-xrsession-domoverlaystate",
+          "tags": [
+            "web-features:webxr-dom-overlays"
+          ],
           "support": {
             "chrome": {
               "version_added": "83"
@@ -175,7 +195,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -187,6 +208,9 @@
       "enabledFeatures": {
         "__compat": {
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsession-enabledfeatures",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "111"
@@ -210,7 +234,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -221,9 +246,12 @@
       },
       "end": {
         "__compat": {
-          "description": "<code>end()</code>",
+          "description": "`end()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/end",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsession-end",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -249,7 +277,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -260,12 +289,15 @@
       },
       "end_event": {
         "__compat": {
-          "description": "<code>end</code> event",
+          "description": "`end` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/end_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsession-end",
             "https://immersive-web.github.io/webxr/#dom-xrsession-onend"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -291,7 +323,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -304,6 +337,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/environmentBlendMode",
           "spec_url": "https://immersive-web.github.io/webxr-ar-module/#dom-xrsession-environmentblendmode",
+          "tags": [
+            "web-features:webxr-ar"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -329,7 +365,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -342,6 +379,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/inputSources",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsession-inputsources",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -367,7 +407,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -378,12 +419,15 @@
       },
       "inputsourceschange_event": {
         "__compat": {
-          "description": "<code>inputsourceschange</code> event",
+          "description": "`inputsourceschange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/inputsourceschange_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsession-inputsourceschange",
             "https://immersive-web.github.io/webxr/#dom-xrsession-oninputsourceschange"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -409,7 +453,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -422,6 +467,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/interactionMode",
           "spec_url": "https://immersive-web.github.io/webxr-ar-module/#dom-xrsession-interactionmode",
+          "tags": [
+            "web-features:webxr-ar"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -445,7 +493,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -458,6 +507,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/preferredReflectionFormat",
           "spec_url": "https://immersive-web.github.io/lighting-estimation/#dom-xrsession-preferredreflectionformat",
+          "tags": [
+            "web-features:webxr-lighting-estimation"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -481,7 +533,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -494,6 +547,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/renderState",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsession-renderstate",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -519,7 +575,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -530,9 +587,12 @@
       },
       "requestAnimationFrame": {
         "__compat": {
-          "description": "<code>requestAnimationFrame()</code>",
+          "description": "`requestAnimationFrame()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/requestAnimationFrame",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsession-requestanimationframe",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -558,7 +618,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -571,6 +632,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/requestHitTestSource",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrsession-requesthittestsource",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -596,7 +660,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -609,6 +674,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/requestHitTestSourceForTransientInput",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrsession-requesthittestsourcefortransientinput",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -632,7 +700,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -645,6 +714,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/requestLightProbe",
           "spec_url": "https://immersive-web.github.io/lighting-estimation/#dom-xrsession-requestlightprobe",
+          "tags": [
+            "web-features:webxr-lighting-estimation"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -668,7 +740,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -679,9 +752,12 @@
       },
       "requestReferenceSpace": {
         "__compat": {
-          "description": "<code>requestReferenceSpace()</code>",
+          "description": "`requestReferenceSpace()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/requestReferenceSpace",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsession-requestreferencespace",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -707,7 +783,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -718,12 +795,15 @@
       },
       "select_event": {
         "__compat": {
-          "description": "<code>select</code> event",
+          "description": "`select` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/select_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsession-select",
             "https://immersive-web.github.io/webxr/#dom-xrsession-onselect"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -749,7 +829,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -760,12 +841,15 @@
       },
       "selectend_event": {
         "__compat": {
-          "description": "<code>selectend</code> event",
+          "description": "`selectend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/selectend_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsession-selectend",
             "https://immersive-web.github.io/webxr/#dom-xrsession-onselectend"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -791,7 +875,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -802,12 +887,15 @@
       },
       "selectstart_event": {
         "__compat": {
-          "description": "<code>selectstart</code> event",
+          "description": "`selectstart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/selectstart_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsession-selectstart",
             "https://immersive-web.github.io/webxr/#dom-xrsession-onselectstart"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -833,7 +921,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -844,12 +933,15 @@
       },
       "squeeze_event": {
         "__compat": {
-          "description": "<code>squeeze</code> event",
+          "description": "`squeeze` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/squeeze_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsession-squeeze",
             "https://immersive-web.github.io/webxr/#dom-xrsession-onsqueeze"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "83"
@@ -873,7 +965,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -884,12 +977,15 @@
       },
       "squeezeend_event": {
         "__compat": {
-          "description": "<code>squeezeend</code> event",
+          "description": "`squeezeend` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/squeezeend_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsession-squeezeend",
             "https://immersive-web.github.io/webxr/#dom-xrsession-onsqueezeend"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "83"
@@ -913,7 +1009,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -924,12 +1021,15 @@
       },
       "squeezestart_event": {
         "__compat": {
-          "description": "<code>squeezestart</code> event",
+          "description": "`squeezestart` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/squeezestart_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsession-squeezestart",
             "https://immersive-web.github.io/webxr/#dom-xrsession-onsqueezestart"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "83"
@@ -953,7 +1053,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -964,9 +1065,12 @@
       },
       "updateRenderState": {
         "__compat": {
-          "description": "<code>updateRenderState()</code>",
+          "description": "`updateRenderState()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/updateRenderState",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsession-updaterenderstate",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -992,7 +1096,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1003,12 +1108,15 @@
       },
       "visibilitychange_event": {
         "__compat": {
-          "description": "<code>visibilitychange</code> event",
+          "description": "`visibilitychange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/visibilitychange_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsession-visibilitychange",
             "https://immersive-web.github.io/webxr/#dom-xrsession-onvisibilitychange"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -1034,7 +1142,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1047,6 +1156,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSession/visibilityState",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsession-visibilitystate",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -1072,7 +1184,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRSessionEvent.json b/api/XRSessionEvent.json
index ac296545ad186c..1a7403d4aa3c2c 100644
--- a/api/XRSessionEvent.json
+++ b/api/XRSessionEvent.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSessionEvent",
         "spec_url": "https://immersive-web.github.io/webxr/#xrsessionevent-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,9 +44,12 @@
       },
       "XRSessionEvent": {
         "__compat": {
-          "description": "<code>XRSessionEvent()</code> constructor",
+          "description": "`XRSessionEvent()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSessionEvent/XRSessionEvent",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsessionevent-xrsessionevent",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -67,7 +75,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -80,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSessionEvent/session",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsessionevent-session",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -105,7 +117,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRSpace.json b/api/XRSpace.json
index 1dfd7915a4083d..8eeeb35537abaa 100644
--- a/api/XRSpace.json
+++ b/api/XRSpace.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSpace",
         "spec_url": "https://immersive-web.github.io/webxr/#xrspace-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/XRSubImage.json b/api/XRSubImage.json
index 9ea599d3ba2d2e..ace96af92af71e 100644
--- a/api/XRSubImage.json
+++ b/api/XRSubImage.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSubImage",
         "spec_url": "https://immersive-web.github.io/layers/#xrsubimagetype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSubImage/viewport",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrsubimage-viewport",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRSystem.json b/api/XRSystem.json
index 886ad6b73677e5..bc04756d213da4 100644
--- a/api/XRSystem.json
+++ b/api/XRSystem.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSystem",
         "spec_url": "https://immersive-web.github.io/webxr/#xrsystem-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -37,12 +42,15 @@
       },
       "devicechange_event": {
         "__compat": {
-          "description": "<code>devicechange</code> event",
+          "description": "`devicechange` event",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSystem/devicechange_event",
           "spec_url": [
             "https://immersive-web.github.io/webxr/#eventdef-xrsystem-devicechange",
             "https://immersive-web.github.io/webxr/#dom-xrsystem-ondevicechange"
           ],
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -66,7 +74,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -77,9 +86,12 @@
       },
       "isSessionSupported": {
         "__compat": {
-          "description": "<code>isSessionSupported()</code>",
+          "description": "`isSessionSupported()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSystem/isSessionSupported",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsystem-issessionsupported",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -103,7 +115,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -114,9 +127,12 @@
       },
       "requestSession": {
         "__compat": {
-          "description": "<code>requestSession()</code>",
+          "description": "`requestSession()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRSystem/requestSession",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrsystem-requestsession",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -140,7 +156,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRTransientInputHitTestResult.json b/api/XRTransientInputHitTestResult.json
index abe4c5e58b20e6..f4a0cd08c08141 100644
--- a/api/XRTransientInputHitTestResult.json
+++ b/api/XRTransientInputHitTestResult.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRTransientInputHitTestResult",
         "spec_url": "https://immersive-web.github.io/hit-test/#xr-transient-input-hit-test-result-interface",
+        "tags": [
+          "web-features:webxr-hit-test"
+        ],
         "support": {
           "chrome": {
             "version_added": "81"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRTransientInputHitTestResult/inputSource",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrtransientinputhittestresult-inputsource",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +84,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRTransientInputHitTestResult/results",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrtransientinputhittestresult-results",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -98,7 +110,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRTransientInputHitTestSource.json b/api/XRTransientInputHitTestSource.json
index 07b6984c183215..bf49041df699ee 100644
--- a/api/XRTransientInputHitTestSource.json
+++ b/api/XRTransientInputHitTestSource.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRTransientInputHitTestSource",
         "spec_url": "https://immersive-web.github.io/hit-test/#transient-input-hit-test-source-interface",
+        "tags": [
+          "web-features:webxr-hit-test"
+        ],
         "support": {
           "chrome": {
             "version_added": "81"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRTransientInputHitTestSource/cancel",
           "spec_url": "https://immersive-web.github.io/hit-test/#dom-xrtransientinputhittestsource-cancel",
+          "tags": [
+            "web-features:webxr-hit-test"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRView.json b/api/XRView.json
index f8605729592de8..09210d2dbdb6ef 100644
--- a/api/XRView.json
+++ b/api/XRView.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRView",
         "spec_url": "https://immersive-web.github.io/webxr/#xrview-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -40,6 +45,9 @@
       "camera": {
         "__compat": {
           "spec_url": "https://immersive-web.github.io/raw-camera-access/#dom-xrview-camera",
+          "tags": [
+            "web-features:webxr-camera"
+          ],
           "support": {
             "chrome": {
               "version_added": "107"
@@ -63,7 +71,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -76,6 +85,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRView/eye",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrview-eye",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -101,7 +113,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -114,10 +127,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRView/isFirstPersonObserver",
           "spec_url": "https://immersive-web.github.io/webxr-ar-module/#dom-xrview-isfirstpersonobserver",
+          "tags": [
+            "web-features:webxr-ar"
+          ],
           "support": {
             "chrome": {
               "version_added": "86",
-              "notes": "Always returns <code>false</code> since no headset with first-person view is supported."
+              "notes": "Always returns `false` since no headset with first-person view is supported."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -137,11 +153,12 @@
             "safari_ios": "mirror",
             "samsunginternet_android": {
               "version_added": "13.0",
-              "notes": "Always returns <code>false</code> since no headset with first-person view is supported."
+              "notes": "Always returns `false` since no headset with first-person view is supported."
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -154,6 +171,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRView/projectionMatrix",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrview-projectionmatrix",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -179,7 +199,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -192,6 +213,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRView/recommendedViewportScale",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrview-recommendedviewportscale",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -215,7 +239,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -228,6 +253,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRView/requestViewportScale",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrview-requestviewportscale",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -251,7 +279,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -264,6 +293,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRView/transform",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrview-transform",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -289,7 +321,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRViewerPose.json b/api/XRViewerPose.json
index 2d37213c7a9394..9aa834478ffeaa 100644
--- a/api/XRViewerPose.json
+++ b/api/XRViewerPose.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRViewerPose",
         "spec_url": "https://immersive-web.github.io/webxr/#xrviewerpose-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRViewerPose/views",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrviewerpose-views",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -66,7 +74,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRViewport.json b/api/XRViewport.json
index 1d1640b2406519..40bff31039a55d 100644
--- a/api/XRViewport.json
+++ b/api/XRViewport.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRViewport",
         "spec_url": "https://immersive-web.github.io/webxr/#xrviewport-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -41,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRViewport/height",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrviewport-height",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -66,7 +74,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,6 +88,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRViewport/width",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrviewport-width",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -104,7 +116,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -117,6 +130,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRViewport/x",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrviewport-x",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -142,7 +158,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -155,6 +172,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRViewport/y",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrviewport-y",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -180,7 +200,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/XRWebGLBinding.json b/api/XRWebGLBinding.json
index 0d9d6e28d584f9..10bc97e9a487de 100644
--- a/api/XRWebGLBinding.json
+++ b/api/XRWebGLBinding.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding",
         "spec_url": "https://immersive-web.github.io/layers/#XRWebGLBindingtype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": "89"
@@ -25,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -35,9 +39,12 @@
       },
       "XRWebGLBinding": {
         "__compat": {
-          "description": "<code>XRWebGLBinding()</code> constructor",
+          "description": "`XRWebGLBinding()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/XRWebGLBinding",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglbinding-xrwebglbinding",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -72,6 +80,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/createCubeLayer",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglbinding-createcubelayer",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -95,7 +106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -108,6 +120,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/createCylinderLayer",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglbinding-createcylinderlayer",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -131,7 +146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -144,6 +160,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/createEquirectLayer",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglbinding-createequirectlayer",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -167,7 +186,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -180,6 +200,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/createProjectionLayer",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglbinding-createprojectionlayer",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -203,7 +226,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -216,6 +240,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/createQuadLayer",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglbinding-createquadlayer",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -239,7 +266,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -251,6 +279,9 @@
       "getCameraImage": {
         "__compat": {
           "spec_url": "https://immersive-web.github.io/raw-camera-access/#dom-xrwebglbinding-getcameraimage",
+          "tags": [
+            "web-features:webxr-camera"
+          ],
           "support": {
             "chrome": {
               "version_added": "107"
@@ -274,7 +305,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -287,6 +319,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/getDepthInformation",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrwebglbinding-getdepthinformation",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -310,7 +345,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -323,6 +359,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/getReflectionCubeMap",
           "spec_url": "https://immersive-web.github.io/lighting-estimation/#dom-xrwebglbinding-getreflectioncubemap",
+          "tags": [
+            "web-features:webxr-lighting-estimation"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -346,7 +385,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -359,6 +399,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/getSubImage",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglbinding-getsubimage",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -382,7 +425,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -395,6 +439,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/getViewSubImage",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglbinding-getviewsubimage",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -418,7 +465,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -431,6 +479,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLBinding/nativeProjectionScaleFactor",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglbinding-nativeprojectionscalefactor",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -454,7 +505,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRWebGLDepthInformation.json b/api/XRWebGLDepthInformation.json
index facf3ce75b8b50..cd9004b02e75ab 100644
--- a/api/XRWebGLDepthInformation.json
+++ b/api/XRWebGLDepthInformation.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLDepthInformation",
         "spec_url": "https://immersive-web.github.io/depth-sensing/#xrwebgldepthinformation",
+        "tags": [
+          "web-features:webxr-depth-sensing"
+        ],
         "support": {
           "chrome": {
             "version_added": "90"
@@ -26,8 +29,10 @@
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +44,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLDepthInformation/texture",
           "spec_url": "https://immersive-web.github.io/depth-sensing/#dom-xrwebgldepthinformation-texture",
+          "tags": [
+            "web-features:webxr-depth-sensing"
+          ],
           "support": {
             "chrome": {
               "version_added": "90"
@@ -62,7 +70,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRWebGLLayer.json b/api/XRWebGLLayer.json
index 0d5352903fb99c..beab75b8d17049 100644
--- a/api/XRWebGLLayer.json
+++ b/api/XRWebGLLayer.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer",
         "spec_url": "https://immersive-web.github.io/webxr/#xrwebgllayer-interface",
+        "tags": [
+          "web-features:webxr-device"
+        ],
         "support": {
           "chrome": {
             "version_added": "79"
@@ -28,8 +31,10 @@
             "version_added": "11.2"
           },
           "webview_android": {
-            "version_added": false
-          }
+            "version_added": false,
+            "impl_url": "https://crbug.com/40652382"
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,9 +44,12 @@
       },
       "XRWebGLLayer": {
         "__compat": {
-          "description": "<code>XRWebGLLayer()</code> constructor",
+          "description": "`XRWebGLLayer()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/XRWebGLLayer",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrwebgllayer-xrwebgllayer",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -67,7 +75,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -80,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/antialias",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrwebgllayer-antialias",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -105,7 +117,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -118,6 +131,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/fixedFoveation",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrwebgllayer-fixedfoveation",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -141,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -154,6 +171,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/framebuffer",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrwebgllayer-framebuffer",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -179,7 +199,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -192,6 +213,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/framebufferHeight",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrwebgllayer-framebufferheight",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -217,7 +241,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -230,6 +255,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/framebufferWidth",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrwebgllayer-framebufferwidth",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -255,7 +283,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -266,9 +295,12 @@
       },
       "getNativeFramebufferScaleFactor_static": {
         "__compat": {
-          "description": "<code>getNativeFramebufferScaleFactor()</code> static method",
+          "description": "`getNativeFramebufferScaleFactor()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/getNativeFramebufferScaleFactor_static",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrwebgllayer-getnativeframebufferscalefactor",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -294,7 +326,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -305,9 +338,12 @@
       },
       "getViewport": {
         "__compat": {
-          "description": "<code>getViewport()</code>",
+          "description": "`getViewport()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/getViewport",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrwebgllayer-getviewport",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -333,7 +369,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -346,6 +383,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/ignoreDepthValues",
           "spec_url": "https://immersive-web.github.io/webxr/#dom-xrwebgllayer-ignoredepthvalues",
+          "tags": [
+            "web-features:webxr-device"
+          ],
           "support": {
             "chrome": {
               "version_added": "79"
@@ -371,7 +411,8 @@
             },
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XRWebGLSubImage.json b/api/XRWebGLSubImage.json
index 67096c0786073c..366ee654ce42e7 100644
--- a/api/XRWebGLSubImage.json
+++ b/api/XRWebGLSubImage.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLSubImage",
         "spec_url": "https://immersive-web.github.io/layers/#xrwebglsubimagetype",
+        "tags": [
+          "web-features:webxr-layers"
+        ],
         "support": {
           "chrome": {
             "version_added": false
@@ -27,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
@@ -39,6 +43,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLSubImage/colorTexture",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglsubimage-colortexture",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -62,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,6 +83,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLSubImage/colorTextureHeight",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglsubimage-colortextureheight",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -98,7 +109,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -111,6 +123,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLSubImage/colorTextureWidth",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglsubimage-colortexturewidth",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -134,7 +149,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -147,6 +163,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLSubImage/depthStencilTexture",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglsubimage-depthstenciltexture",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -170,7 +189,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -183,6 +203,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XRWebGLSubImage/imageIndex",
           "spec_url": "https://immersive-web.github.io/layers/#dom-xrwebglsubimage-imageindex",
+          "tags": [
+            "web-features:webxr-layers"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -206,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/api/XSLTProcessor.json b/api/XSLTProcessor.json
index c016ff40a0725a..45ae383f80291d 100644
--- a/api/XSLTProcessor.json
+++ b/api/XSLTProcessor.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor",
         "spec_url": "https://dom.spec.whatwg.org/#interface-xsltprocessor",
+        "tags": [
+          "web-features:xslt"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -33,7 +36,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "3"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,9 +47,12 @@
       },
       "XSLTProcessor": {
         "__compat": {
-          "description": "<code>XSLTProcessor()</code> constructor",
+          "description": "`XSLTProcessor()` constructor",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor/XSLTProcessor",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xsltprocessor-xsltprocessor",
+          "tags": [
+            "web-features:xslt"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -75,7 +82,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,6 +96,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor/clearParameters",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xsltprocessor-clearparameters",
+          "tags": [
+            "web-features:xslt"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -117,7 +128,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -130,6 +142,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor/getParameter",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xsltprocessor-getparameter",
+          "tags": [
+            "web-features:xslt"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
@@ -165,7 +180,8 @@
             "webview_android": {
               "version_added": "3",
               "notes": "WebView only supports string values."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,6 +194,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor/importStylesheet",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xsltprocessor-importstylesheet",
+          "tags": [
+            "web-features:xslt"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -207,7 +226,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -220,6 +240,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor/removeParameter",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xsltprocessor-removeparameter",
+          "tags": [
+            "web-features:xslt"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -249,7 +272,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -262,6 +286,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor/reset",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xsltprocessor-reset",
+          "tags": [
+            "web-features:xslt"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -291,7 +318,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -304,6 +332,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor/setParameter",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xsltprocessor-setparameter",
+          "tags": [
+            "web-features:xslt"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
@@ -339,7 +370,8 @@
             "webview_android": {
               "version_added": "3",
               "notes": "WebView only supports string values."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -352,15 +384,18 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor/transformToDocument",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xsltprocessor-transformtodocument",
+          "tags": [
+            "web-features:xslt"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Chrome returns <code>null</code> if an error occurs."
+              "notes": "Chrome returns `null` if an error occurs."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Edge returns <code>null</code> if an error occurs."
+              "notes": "Edge returns `null` if an error occurs."
             },
             "firefox": {
               "version_added": "1",
@@ -375,26 +410,27 @@
               "version_added": "≤12.1",
               "notes": [
                 "Opera 12.1 and earlier throws an exception if an error occurs.",
-                "Opera 15 and later returns <code>null</code> if an error occurs."
+                "Opera 15 and later returns `null` if an error occurs."
               ]
             },
             "opera_android": {
               "version_added": "≤12.1",
               "notes": [
                 "Opera Android 12.1 and earlier throws an exception if an error occurs.",
-                "Opera Android 14 and later returns <code>null</code> if an error occurs."
+                "Opera Android 14 and later returns `null` if an error occurs."
               ]
             },
             "safari": {
               "version_added": "3.1",
-              "notes": "Safari returns <code>null</code> if an error occurs."
+              "notes": "Safari returns `null` if an error occurs."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3",
-              "notes": "WebView returns <code>null</code> if an error occurs."
-            }
+              "notes": "WebView returns `null` if an error occurs."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -407,15 +443,18 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/XSLTProcessor/transformToFragment",
           "spec_url": "https://dom.spec.whatwg.org/#dom-xsltprocessor-transformtofragment",
+          "tags": [
+            "web-features:xslt"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Chrome returns <code>null</code> if an error occurs."
+              "notes": "Chrome returns `null` if an error occurs."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Edge returns <code>null</code> if an error occurs."
+              "notes": "Edge returns `null` if an error occurs."
             },
             "firefox": {
               "version_added": "1",
@@ -430,26 +469,27 @@
               "version_added": "≤12.1",
               "notes": [
                 "Opera 12.1 and earlier throws an exception if an error occurs.",
-                "Opera 15 and later returns <code>null</code> if an error occurs."
+                "Opera 15 and later returns `null` if an error occurs."
               ]
             },
             "opera_android": {
               "version_added": "≤12.1",
               "notes": [
                 "Opera Android 12.1 and earlier throws an exception if an error occurs.",
-                "Opera Android 14 and later returns <code>null</code> if an error occurs."
+                "Opera Android 14 and later returns `null` if an error occurs."
               ]
             },
             "safari": {
               "version_added": "3.1",
-              "notes": "Safari returns <code>null</code> if an error occurs."
+              "notes": "Safari returns `null` if an error occurs."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3",
-              "notes": "WebView returns <code>null</code> if an error occurs."
-            }
+              "notes": "WebView returns `null` if an error occurs."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/atob.json b/api/_globals/atob.json
index bcd4d2c74dcbf7..1201f9df16373e 100644
--- a/api/_globals/atob.json
+++ b/api/_globals/atob.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/atob",
         "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#dom-atob-dev",
+        "tags": [
+          "web-features:base64encodedecode"
+        ],
         "support": {
           "chrome": {
             "version_added": "4"
@@ -41,7 +44,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -81,7 +85,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/btoa.json b/api/_globals/btoa.json
index a0b79cf3b24478..236b95bb6df7bc 100644
--- a/api/_globals/btoa.json
+++ b/api/_globals/btoa.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/btoa",
         "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#dom-btoa-dev",
+        "tags": [
+          "web-features:base64encodedecode"
+        ],
         "support": {
           "chrome": {
             "version_added": "4"
@@ -41,7 +44,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -81,7 +85,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/caches.json b/api/_globals/caches.json
index ab484518059cac..a60f4a59e87a34 100644
--- a/api/_globals/caches.json
+++ b/api/_globals/caches.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +105,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/clearInterval.json b/api/_globals/clearInterval.json
index d9ba446b5b6a77..4790d441a2ab6a 100644
--- a/api/_globals/clearInterval.json
+++ b/api/_globals/clearInterval.json
@@ -2,8 +2,11 @@
   "api": {
     "clearInterval": {
       "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/clearInterval",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/clearInterval",
         "spec_url": "https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-clearinterval-dev",
+        "tags": [
+          "web-features:setinterval"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -21,12 +24,12 @@
           "firefox_android": "mirror",
           "ie": {
             "version_added": "4",
-            "notes": "From Internet Explorer 4 through 8, <code>clearInterval</code> is an Object rather than a Function. This behavior was fixed in Internet Explorer 9."
+            "notes": "From Internet Explorer 4 through 8, `clearInterval` is an Object rather than a Function. This behavior was fixed in Internet Explorer 9."
           },
           "nodejs": {
             "version_added": "0.10.0",
             "partial_implementation": true,
-            "notes": "Takes a <code>Timeout</code> object instead of the <code>intervalID</code>."
+            "notes": "Takes a `Timeout` object instead of the `intervalID`."
           },
           "oculus": "mirror",
           "opera": {
@@ -42,7 +45,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +76,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -90,7 +94,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/clearTimeout.json b/api/_globals/clearTimeout.json
index 3a4da43732f8fa..5ec8e3ef3fdcc7 100644
--- a/api/_globals/clearTimeout.json
+++ b/api/_globals/clearTimeout.json
@@ -2,8 +2,11 @@
   "api": {
     "clearTimeout": {
       "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/clearTimeout",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/clearTimeout",
         "spec_url": "https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-cleartimeout-dev",
+        "tags": [
+          "web-features:settimeout"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -21,12 +24,12 @@
           "firefox_android": "mirror",
           "ie": {
             "version_added": "4",
-            "notes": "From Internet Explorer 4 through 8, <code>clearTimeout</code> is an Object rather than a Function. This behavior was fixed in Internet Explorer 9."
+            "notes": "From Internet Explorer 4 through 8, `clearTimeout` is an Object rather than a Function. This behavior was fixed in Internet Explorer 9."
           },
           "nodejs": {
             "version_added": "0.10.0",
             "partial_implementation": true,
-            "notes": "Takes a <code>Timeout</code> object instead of the <code>timeoutID</code>."
+            "notes": "Takes a `Timeout` object instead of the `timeoutID`."
           },
           "oculus": "mirror",
           "opera": {
@@ -44,7 +47,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -74,7 +78,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -92,7 +96,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/console.json b/api/_globals/console.json
index 557b0c3d7bafae..c7d0f150bf8e3c 100644
--- a/api/_globals/console.json
+++ b/api/_globals/console.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/console",
         "spec_url": "https://console.spec.whatwg.org/#console-namespace",
+        "tags": [
+          "web-features:console"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -21,7 +24,7 @@
           "firefox_android": "mirror",
           "ie": {
             "version_added": "8",
-            "notes": "In Internet Explorer 8 and 9, the <code>console</code> object is <code>undefined</code> when the developer tools are not open. This behavior was fixed in Internet Explorer 10."
+            "notes": "In Internet Explorer 8 and 9, the `console` object is `undefined` when the developer tools are not open. This behavior was fixed in Internet Explorer 10."
           },
           "nodejs": {
             "version_added": "0.10.0"
@@ -42,7 +45,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -53,6 +57,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "31"
@@ -72,7 +79,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -86,7 +93,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -97,9 +105,12 @@
       },
       "assert_static": {
         "__compat": {
-          "description": "<code>assert()</code> static method",
+          "description": "`assert()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/assert_static",
           "spec_url": "https://console.spec.whatwg.org/#assert",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -142,7 +153,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -153,9 +165,12 @@
       },
       "clear_static": {
         "__compat": {
-          "description": "<code>clear()</code> static method",
+          "description": "`clear()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/clear_static",
           "spec_url": "https://console.spec.whatwg.org/#clear",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "25"
@@ -189,7 +204,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,9 +216,12 @@
       },
       "count_static": {
         "__compat": {
-          "description": "<code>count()</code> static method",
+          "description": "`count()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/count_static",
           "spec_url": "https://console.spec.whatwg.org/#count",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -238,7 +257,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -249,9 +269,12 @@
       },
       "countReset_static": {
         "__compat": {
-          "description": "<code>countReset()</code> static method",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/countreset_static",
+          "description": "`countReset()` static method",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/countReset_static",
           "spec_url": "https://console.spec.whatwg.org/#countreset",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "68"
@@ -279,7 +302,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -290,9 +314,12 @@
       },
       "debug_static": {
         "__compat": {
-          "description": "<code>debug()</code> static method",
+          "description": "`debug()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/debug_static",
           "spec_url": "https://console.spec.whatwg.org/#debug",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -313,7 +340,7 @@
             },
             "nodejs": {
               "version_added": "8.0.0",
-              "notes": "Since Node.js 8.10.0, this method is an alias for <code>console.log</code>."
+              "notes": "Since Node.js 8.10.0, this method is an alias for `console.log`."
             },
             "oculus": "mirror",
             "opera": {
@@ -329,7 +356,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -340,9 +368,12 @@
       },
       "dir_static": {
         "__compat": {
-          "description": "<code>dir()</code> static method",
+          "description": "`dir()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/dir_static",
           "spec_url": "https://console.spec.whatwg.org/#dir",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -378,7 +409,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -388,7 +420,7 @@
         },
         "options_colors_parameter": {
           "__compat": {
-            "description": "<code>options.colors</code> parameter",
+            "description": "`options.colors` parameter",
             "support": {
               "chrome": {
                 "version_added": false
@@ -416,7 +448,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -427,7 +460,7 @@
         },
         "options_depth_parameter": {
           "__compat": {
-            "description": "<code>options.depth</code> parameter",
+            "description": "`options.depth` parameter",
             "support": {
               "chrome": {
                 "version_added": false
@@ -455,7 +488,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -466,7 +500,7 @@
         },
         "options_showHidden_parameter": {
           "__compat": {
-            "description": "<code>options.showHidden</code> parameter",
+            "description": "`options.showHidden` parameter",
             "support": {
               "chrome": {
                 "version_added": false
@@ -494,7 +528,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -506,9 +541,12 @@
       },
       "dirxml_static": {
         "__compat": {
-          "description": "<code>dirxml()</code> static method",
+          "description": "`dirxml()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/dirxml_static",
           "spec_url": "https://console.spec.whatwg.org/#dirxml",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -551,7 +589,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -562,9 +601,12 @@
       },
       "error_static": {
         "__compat": {
-          "description": "<code>error()</code> static method",
+          "description": "`error()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/error_static",
           "spec_url": "https://console.spec.whatwg.org/#error",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -600,7 +642,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -611,7 +654,7 @@
       },
       "exception_static": {
         "__compat": {
-          "description": "<code>exception()</code> static method (an alias for <code>error()</code>)",
+          "description": "`exception()` static method (an alias for `error()`)",
           "support": {
             "chrome": {
               "version_added": false
@@ -642,7 +685,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -653,9 +697,12 @@
       },
       "group_static": {
         "__compat": {
-          "description": "<code>group()</code> static method",
+          "description": "`group()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/group_static",
           "spec_url": "https://console.spec.whatwg.org/#group",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -691,7 +738,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -702,9 +750,12 @@
       },
       "groupCollapsed_static": {
         "__compat": {
-          "description": "<code>groupCollapsed()</code> static method",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/groupcollapsed_static",
+          "description": "`groupCollapsed()` static method",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/groupCollapsed_static",
           "spec_url": "https://console.spec.whatwg.org/#groupcollapsed",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -725,7 +776,7 @@
             },
             "nodejs": {
               "version_added": "8.5.0",
-              "notes": "Alias for <code>console.group</code>"
+              "notes": "Alias for `console.group`"
             },
             "oculus": "mirror",
             "opera": {
@@ -741,7 +792,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -752,9 +804,12 @@
       },
       "groupEnd_static": {
         "__compat": {
-          "description": "<code>groupEnd()</code> static method",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/groupend_static",
+          "description": "`groupEnd()` static method",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/groupEnd_static",
           "spec_url": "https://console.spec.whatwg.org/#groupend",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -790,7 +845,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -801,9 +857,12 @@
       },
       "info_static": {
         "__compat": {
-          "description": "<code>info()</code> static method",
+          "description": "`info()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/info_static",
           "spec_url": "https://console.spec.whatwg.org/#info",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -824,7 +883,7 @@
             },
             "nodejs": {
               "version_added": "0.10.0",
-              "notes": "Alias for <code>console.log</code>"
+              "notes": "Alias for `console.log`"
             },
             "oculus": "mirror",
             "opera": {
@@ -840,7 +899,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -851,9 +911,12 @@
       },
       "log_static": {
         "__compat": {
-          "description": "<code>log()</code> static method",
+          "description": "`log()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/log_static",
           "spec_url": "https://console.spec.whatwg.org/#log",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -889,7 +952,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -900,7 +964,7 @@
       },
       "profile_static": {
         "__compat": {
-          "description": "<code>profile()</code> static method",
+          "description": "`profile()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/profile_static",
           "support": {
             "chrome": {
@@ -944,7 +1008,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -955,8 +1020,8 @@
       },
       "profileEnd_static": {
         "__compat": {
-          "description": "<code>profileEnd()</code> static method",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/profileend_static",
+          "description": "`profileEnd()` static method",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/profileEnd_static",
           "support": {
             "chrome": {
               "version_added": "5"
@@ -969,7 +1034,8 @@
               "version_added": "12"
             },
             "firefox": {
-              "version_added": "16"
+              "version_added": "16",
+              "version_removed": "102"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -998,7 +1064,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1010,6 +1077,9 @@
       "substitution_strings": {
         "__compat": {
           "description": "Substitution strings",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
@@ -1019,15 +1089,15 @@
             "deno": {
               "version_added": "1.0",
               "notes": [
-                "Before Deno 1.4, <code>%c</code> is not supported.",
-                "<code>%c</code> only supports CSS properties <code>color</code>, <code>background-color</code>, <code>font-weight</code>, <code>font-style</code>, <code>text-decoration-color</code>, and <code>text-decoration-line</code>."
+                "Before Deno 1.4, `%c` is not supported.",
+                "`%c` only supports CSS properties `color`, `background-color`, `font-weight`, `font-style`, `text-decoration-color`, and `text-decoration-line`."
               ]
             },
             "edge": {
               "version_added": "12",
               "notes": [
-                "Before Edge 79, <code>%c</code> is not supported.",
-                "Before Edge 79, <code>%d</code> outputs a 0 if the specified value isn't a number."
+                "Before Edge 79, `%c` is not supported.",
+                "Before Edge 79, `%d` outputs a 0 if the specified value isn't a number."
               ]
             },
             "firefox": {
@@ -1037,8 +1107,8 @@
             "ie": {
               "version_added": "10",
               "notes": [
-                "<code>%c</code> is not supported.",
-                "<code>%d</code> outputs a 0 if the specified value isn't a number."
+                "`%c` is not supported.",
+                "`%d` outputs a 0 if the specified value isn't a number."
               ]
             },
             "nodejs": {
@@ -1064,7 +1134,8 @@
             "webview_android": {
               "version_added": "≤37",
               "notes": "In version 28, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1."
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1075,9 +1146,12 @@
       },
       "table_static": {
         "__compat": {
-          "description": "<code>table()</code> static method",
+          "description": "`table()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/table_static",
           "spec_url": "https://console.spec.whatwg.org/#table",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "27"
@@ -1111,7 +1185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1122,9 +1197,12 @@
       },
       "time_static": {
         "__compat": {
-          "description": "<code>time()</code> static method",
+          "description": "`time()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/time_static",
           "spec_url": "https://console.spec.whatwg.org/#time",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -1160,7 +1238,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1171,9 +1250,12 @@
       },
       "timeEnd_static": {
         "__compat": {
-          "description": "<code>timeEnd()</code> static method",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/timeend_static",
+          "description": "`timeEnd()` static method",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/timeEnd_static",
           "spec_url": "https://console.spec.whatwg.org/#timeend",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -1209,7 +1291,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1220,9 +1303,12 @@
       },
       "timeLog_static": {
         "__compat": {
-          "description": "<code>timeLog()</code> static method",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/timelog_static",
+          "description": "`timeLog()` static method",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/timeLog_static",
           "spec_url": "https://console.spec.whatwg.org/#timelog",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "71"
@@ -1252,7 +1338,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1263,8 +1350,8 @@
       },
       "timeStamp_static": {
         "__compat": {
-          "description": "<code>timeStamp()</code> static method",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/timestamp_static",
+          "description": "`timeStamp()` static method",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/timeStamp_static",
           "support": {
             "chrome": {
               "version_added": "15"
@@ -1302,7 +1389,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1313,9 +1401,12 @@
       },
       "trace_static": {
         "__compat": {
-          "description": "<code>trace()</code> static method",
+          "description": "`trace()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/trace_static",
           "spec_url": "https://console.spec.whatwg.org/#trace",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -1351,7 +1442,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1362,9 +1454,12 @@
       },
       "warn_static": {
         "__compat": {
-          "description": "<code>warn()</code> static method",
+          "description": "`warn()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/console/warn_static",
           "spec_url": "https://console.spec.whatwg.org/#warn",
+          "tags": [
+            "web-features:console"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1385,7 +1480,7 @@
             },
             "nodejs": {
               "version_added": "0.10.0",
-              "notes": "Alias for <code>console.error</code>"
+              "notes": "Alias for `console.error`"
             },
             "oculus": "mirror",
             "opera": {
@@ -1401,7 +1496,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/createImageBitmap.json b/api/_globals/createImageBitmap.json
index e4a36ff90f734d..595631bfee1f2b 100644
--- a/api/_globals/createImageBitmap.json
+++ b/api/_globals/createImageBitmap.json
@@ -2,8 +2,11 @@
   "api": {
     "createImageBitmap": {
       "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/createImageBitmap",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/createImageBitmap",
         "spec_url": "https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#dom-createimagebitmap-dev",
+        "tags": [
+          "web-features:createimagebitmap"
+        ],
         "support": {
           "chrome": {
             "version_added": "50"
@@ -29,7 +32,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -39,7 +43,10 @@
       },
       "options_colorSpaceConversion_parameter": {
         "__compat": {
-          "description": "<code>options.colorSpaceConversion</code> parameter",
+          "description": "`options.colorSpaceConversion` parameter",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "58"
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,7 +83,10 @@
       },
       "options_imageOrientation_parameter": {
         "__compat": {
-          "description": "<code>options.imageOrientation</code> parameter",
+          "description": "`options.imageOrientation` parameter",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -100,7 +111,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,7 +122,7 @@
         },
         "from-image": {
           "__compat": {
-            "description": "Value <code>from-image</code>",
+            "description": "Value `from-image`",
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -135,7 +147,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -146,7 +159,7 @@
         },
         "none": {
           "__compat": {
-            "description": "Value <code>none</code>",
+            "description": "Value `none`",
             "support": {
               "chrome": {
                 "version_added": false
@@ -171,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -183,7 +197,10 @@
       },
       "options_premultiplyAlpha_parameter": {
         "__compat": {
-          "description": "<code>options.premultiplyAlpha</code> parameter",
+          "description": "`options.premultiplyAlpha` parameter",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -203,12 +220,21 @@
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
-            "safari": {
-              "version_added": "15"
-            },
+            "safari": [
+              {
+                "version_added": "17"
+              },
+              {
+                "version_added": "15",
+                "version_removed": "17",
+                "partial_implementation": true,
+                "notes": "If the source image is an `ImageData` object, then the `premultiplyAlpha` option does nothing. See [bug 237082](https://webkit.org/b/237082)."
+              }
+            ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -219,7 +245,10 @@
       },
       "options_resizeHeight_parameter": {
         "__compat": {
-          "description": "<code>options.resizeHeight</code> parameter",
+          "description": "`options.resizeHeight` parameter",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -244,7 +273,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -255,7 +285,10 @@
       },
       "options_resizeQuality_parameter": {
         "__compat": {
-          "description": "<code>options.resizeQuality</code> parameter",
+          "description": "`options.resizeQuality` parameter",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -280,7 +313,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,7 +325,10 @@
       },
       "options_resizeWidth_parameter": {
         "__compat": {
-          "description": "<code>options.resizeWidth</code> parameter",
+          "description": "`options.resizeWidth` parameter",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -316,7 +353,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -327,7 +365,10 @@
       },
       "svgimageelement_as_source_image": {
         "__compat": {
-          "description": "<code>SVGImageElement</code> as source image",
+          "description": "`SVGImageElement` as source image",
+          "tags": [
+            "web-features:createimagebitmap"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -352,7 +393,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/crossOriginIsolated.json b/api/_globals/crossOriginIsolated.json
index 83b7932c91387f..06401586a3574b 100644
--- a/api/_globals/crossOriginIsolated.json
+++ b/api/_globals/crossOriginIsolated.json
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/_globals/crypto.json b/api/_globals/crypto.json
index 17e7471c918eb2..2d24e69ead874e 100644
--- a/api/_globals/crypto.json
+++ b/api/_globals/crypto.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/crypto",
         "spec_url": "https://w3c.github.io/webcrypto/#dom-windoworworkerglobalscope-crypto",
+        "tags": [
+          "web-features:web-cryptography"
+        ],
         "support": {
           "chrome": {
             "version_added": "37"
@@ -23,9 +26,17 @@
             "prefix": "ms",
             "version_added": "11"
           },
-          "nodejs": {
-            "version_added": "15.0.0"
-          },
+          "nodejs": [
+            {
+              "version_added": "19.0.0"
+            },
+            {
+              "alternative_name": "webcrypto",
+              "version_added": "15.0.0",
+              "partial_implementation": true,
+              "notes": "Available as a part of the `crypto` module."
+            }
+          ],
           "oculus": "mirror",
           "opera": "mirror",
           "opera_android": "mirror",
@@ -36,7 +47,8 @@
             "version_added": "5"
           },
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,6 +59,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:web-cryptography"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -71,7 +86,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/fetch.json b/api/_globals/fetch.json
index 3edcaf05f88618..0da68e0fc5221a 100644
--- a/api/_globals/fetch.json
+++ b/api/_globals/fetch.json
@@ -14,7 +14,7 @@
           "chrome_android": "mirror",
           "deno": {
             "version_added": "1.0",
-            "notes": "Fetching with a <code>\"manual\"</code> redirect mode does not result in a <code>\"opaqueredirect\"</code> response, but a regular response."
+            "notes": "Fetching with a `\"manual\"` redirect mode does not result in a `\"opaqueredirect\"` response, but a regular response."
           },
           "edge": {
             "version_added": "14"
@@ -37,7 +37,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -47,8 +48,11 @@
       },
       "authorization_removed_cross_origin": {
         "__compat": {
-          "description": "<code>Authorization</code> header removed from cross-origin redirects",
+          "description": "`Authorization` header removed from cross-origin redirects",
           "spec_url": "https://fetch.spec.whatwg.org/#http-redirect-fetch",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -73,7 +77,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,6 +90,9 @@
       "blob_data_support": {
         "__compat": {
           "description": "Support for blob: and data:",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "48"
@@ -111,7 +119,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "43"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -122,11 +131,14 @@
       },
       "init_attributionReporting_parameter": {
         "__compat": {
-          "description": "<code>init.attributionReporting</code> parameter",
+          "description": "`init.attributionReporting` parameter",
           "spec_url": "https://wicg.github.io/attribution-reporting-api/#dom-requestinit-attributionreporting",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "125"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -145,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -156,7 +169,7 @@
       },
       "init_browsingTopics_parameter": {
         "__compat": {
-          "description": "<code>init.browsingTopics</code> parameter",
+          "description": "`init.browsingTopics` parameter",
           "support": {
             "chrome": {
               "version_added": "115"
@@ -178,7 +191,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -189,7 +203,10 @@
       },
       "init_keepalive_parameter": {
         "__compat": {
-          "description": "<code>init.keepalive</code> parameter",
+          "description": "`init.keepalive` parameter",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "66"
@@ -202,12 +219,15 @@
               "version_added": "15"
             },
             "firefox": {
-              "version_added": false
+              "version_added": "133"
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
+            "nodejs": {
+              "version_added": "18.0.0"
+            },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -216,7 +236,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -227,7 +248,7 @@
       },
       "init_priority_parameter": {
         "__compat": {
-          "description": "<code>init.priority</code> parameter",
+          "description": "`init.priority` parameter",
           "tags": [
             "web-features:fetch-priority"
           ],
@@ -255,7 +276,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -266,7 +288,10 @@
       },
       "init_referrerPolicy_parameter": {
         "__compat": {
-          "description": "<code>init.referrerPolicy</code> parameter",
+          "description": "`init.referrerPolicy` parameter",
+          "tags": [
+            "web-features:fetch"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -293,7 +318,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -304,7 +330,7 @@
       },
       "init_signal_parameter": {
         "__compat": {
-          "description": "<code>init.signal</code> parameter",
+          "description": "`init.signal` parameter",
           "tags": [
             "web-features:abortable-fetch"
           ],
@@ -337,7 +363,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/indexedDB.json b/api/_globals/indexedDB.json
index 77da8e69aa9e89..5601ff1ea45f83 100644
--- a/api/_globals/indexedDB.json
+++ b/api/_globals/indexedDB.json
@@ -38,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -75,7 +76,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/isSecureContext.json b/api/_globals/isSecureContext.json
index ee362a00f9362b..b983cb31857fd4 100644
--- a/api/_globals/isSecureContext.json
+++ b/api/_globals/isSecureContext.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -65,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/origin.json b/api/_globals/origin.json
index d7d978c4bfa513..34345a203a6fc4 100644
--- a/api/_globals/origin.json
+++ b/api/_globals/origin.json
@@ -30,7 +30,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/_globals/performance.json b/api/_globals/performance.json
index 3b5c6b9ff4c782..a54aa09dd3c97e 100644
--- a/api/_globals/performance.json
+++ b/api/_globals/performance.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/performance",
         "spec_url": "https://w3c.github.io/hr-time/#the-performance-attribute",
+        "tags": [
+          "web-features:performance"
+        ],
         "support": {
           "chrome": {
             "version_added": "6"
@@ -22,9 +25,16 @@
           "ie": {
             "version_added": "9"
           },
-          "nodejs": {
-            "version_added": "16.0.0"
-          },
+          "nodejs": [
+            {
+              "version_added": "16.0.0"
+            },
+            {
+              "version_added": "8.5.0",
+              "partial_implementation": true,
+              "notes": "Available as a part of the <code>perf_hooks</code> module."
+            }
+          ],
           "oculus": "mirror",
           "opera": "mirror",
           "opera_android": "mirror",
@@ -37,7 +47,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": "≤37"
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -48,6 +59,9 @@
       "worker_support": {
         "__compat": {
           "description": "Available in workers",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "30"
@@ -66,6 +80,16 @@
             "ie": {
               "version_added": false
             },
+            "nodejs": [
+              {
+                "version_added": "16.0.0"
+              },
+              {
+                "version_added": "11.7.0",
+                "partial_implementation": true,
+                "notes": "Available as a part of the <code>perf_hooks</code> module."
+              }
+            ],
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
@@ -74,7 +98,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/queueMicrotask.json b/api/_globals/queueMicrotask.json
index c0d5ddbf8d79a5..0bc1286e7e1475 100644
--- a/api/_globals/queueMicrotask.json
+++ b/api/_globals/queueMicrotask.json
@@ -2,7 +2,7 @@
   "api": {
     "queueMicrotask": {
       "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/queueMicrotask",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/queueMicrotask",
         "spec_url": "https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#microtask-queuing",
         "support": {
           "chrome": {
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/_globals/reportError.json b/api/_globals/reportError.json
index 61603918112c44..95414820aca890 100644
--- a/api/_globals/reportError.json
+++ b/api/_globals/reportError.json
@@ -2,7 +2,7 @@
   "api": {
     "reportError": {
       "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/reportError",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/reportError",
         "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#runtime-script-errors",
         "support": {
           "chrome": {
@@ -31,7 +31,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/_globals/scheduler.json b/api/_globals/scheduler.json
index 9fc6279345c47d..4bbaab1c2e43cc 100644
--- a/api/_globals/scheduler.json
+++ b/api/_globals/scheduler.json
@@ -35,7 +35,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/_globals/setInterval.json b/api/_globals/setInterval.json
index a392b6faeddee2..9f800c2bfad841 100644
--- a/api/_globals/setInterval.json
+++ b/api/_globals/setInterval.json
@@ -2,8 +2,11 @@
   "api": {
     "setInterval": {
       "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/setInterval",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/setInterval",
         "spec_url": "https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-setinterval-dev",
+        "tags": [
+          "web-features:setinterval"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -26,8 +29,8 @@
             "version_added": "0.10.0",
             "partial_implementation": true,
             "notes": [
-              "Returns a <code>Timeout</code> object instead of the <code>intervalID</code>.",
-              "Does not support passing a <code>code</code> string and throws when the first parameter is not a function."
+              "Returns a `Timeout` object instead of the `intervalID`.",
+              "Does not support passing a `code` string and throws when the first parameter is not a function."
             ]
           },
           "oculus": "mirror",
@@ -42,7 +45,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +76,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -88,7 +92,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,7 +140,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/setTimeout.json b/api/_globals/setTimeout.json
index ce0f8269c354ac..fca234ed59cfd0 100644
--- a/api/_globals/setTimeout.json
+++ b/api/_globals/setTimeout.json
@@ -2,8 +2,11 @@
   "api": {
     "setTimeout": {
       "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/setTimeout",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/setTimeout",
         "spec_url": "https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-settimeout-dev",
+        "tags": [
+          "web-features:settimeout"
+        ],
         "support": {
           "chrome": {
             "version_added": "1"
@@ -26,8 +29,8 @@
             "version_added": "0.10.0",
             "partial_implementation": true,
             "notes": [
-              "Returns a <code>Timeout</code> object instead of the <code>timeoutID</code>.",
-              "Does not support passing a <code>code</code> string and throws when the first parameter is not a function."
+              "Returns a `Timeout` object instead of the `timeoutID`.",
+              "Does not support passing a `code` string and throws when the first parameter is not a function."
             ]
           },
           "oculus": "mirror",
@@ -42,7 +45,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -72,7 +76,7 @@
               "version_added": "10"
             },
             "nodejs": {
-              "version_added": "10.5.0"
+              "version_added": "11.7.0"
             },
             "oculus": "mirror",
             "opera": {
@@ -88,7 +92,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,7 +140,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/api/_globals/structuredClone.json b/api/_globals/structuredClone.json
index 36389f2e5a64f2..19cea3a48b897a 100644
--- a/api/_globals/structuredClone.json
+++ b/api/_globals/structuredClone.json
@@ -2,7 +2,7 @@
   "api": {
     "structuredClone": {
       "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/structuredClone",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/structuredClone",
         "spec_url": "https://html.spec.whatwg.org/multipage/structured-data.html#dom-structuredclone",
         "tags": [
           "web-features:structured-clone"
@@ -15,15 +15,15 @@
           "deno": [
             {
               "version_added": "1.14",
-              "notes": "The <code>message</code> parameter does not support cloning <code>Blob</code> values."
+              "notes": "The `message` parameter does not support cloning `Blob` values."
             },
             {
               "version_added": "1.13",
               "version_removed": "1.14",
               "partial_implementation": true,
               "notes": [
-                "The <code>message</code> parameter does not support cloning <code>Blob</code> values.",
-                "The <code>transfer</code> parameter does not accept <code>ArrayBuffer</code> items. Passing an <code>ArrayBuffer</code> results in an error being thrown."
+                "The `message` parameter does not support cloning `Blob` values.",
+                "The `transfer` parameter does not accept `ArrayBuffer` items. Passing an `ArrayBuffer` results in an error being thrown."
               ]
             }
           ],
@@ -46,7 +46,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/api/_globals/trustedTypes.json b/api/_globals/trustedTypes.json
index 5138be915636e8..c9c3df04b2a49c 100644
--- a/api/_globals/trustedTypes.json
+++ b/api/_globals/trustedTypes.json
@@ -14,7 +14,8 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://bugzil.la/1508286"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -24,11 +25,13 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": false,
+            "impl_url": "https://webkit.org/b/266630"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/browsers/chrome.json b/browsers/chrome.json
index 767af8583d2415..563ca131204ead 100644
--- a/browsers/chrome.json
+++ b/browsers/chrome.json
@@ -892,15 +892,48 @@
         },
         "128": {
           "release_date": "2024-08-20",
-          "status": "current",
+          "release_notes": "https://developer.chrome.com/release-notes/128",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "128"
         },
         "129": {
           "release_date": "2024-09-17",
-          "status": "beta",
+          "release_notes": "https://developer.chrome.com/release-notes/129",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "129"
+        },
+        "130": {
+          "release_date": "2024-10-15",
+          "release_notes": "https://developer.chrome.com/release-notes/130",
+          "status": "retired",
+          "engine": "Blink",
+          "engine_version": "130"
+        },
+        "131": {
+          "release_date": "2024-11-12",
+          "release_notes": "https://developer.chrome.com/release-notes/131",
+          "status": "current",
+          "engine": "Blink",
+          "engine_version": "131"
+        },
+        "132": {
+          "release_date": "2025-01-14",
+          "status": "beta",
+          "engine": "Blink",
+          "engine_version": "132"
+        },
+        "133": {
+          "release_date": "2025-02-04",
+          "status": "nightly",
+          "engine": "Blink",
+          "engine_version": "133"
+        },
+        "134": {
+          "status": "planned",
+          "engine": "Blink",
+          "engine_version": "134"
         }
       }
     }
diff --git a/browsers/chrome_android.json b/browsers/chrome_android.json
index bdd95534eb0bba..0ca54461fecf81 100644
--- a/browsers/chrome_android.json
+++ b/browsers/chrome_android.json
@@ -729,15 +729,48 @@
         },
         "128": {
           "release_date": "2024-08-20",
-          "status": "current",
+          "release_notes": "https://developer.chrome.com/release-notes/128",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "128"
         },
         "129": {
           "release_date": "2024-09-17",
-          "status": "beta",
+          "release_notes": "https://developer.chrome.com/release-notes/129",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "129"
+        },
+        "130": {
+          "release_date": "2024-10-15",
+          "release_notes": "https://developer.chrome.com/release-notes/130",
+          "status": "retired",
+          "engine": "Blink",
+          "engine_version": "130"
+        },
+        "131": {
+          "release_date": "2024-11-12",
+          "release_notes": "https://developer.chrome.com/release-notes/131",
+          "status": "current",
+          "engine": "Blink",
+          "engine_version": "131"
+        },
+        "132": {
+          "release_date": "2025-01-14",
+          "status": "beta",
+          "engine": "Blink",
+          "engine_version": "132"
+        },
+        "133": {
+          "release_date": "2025-02-04",
+          "status": "nightly",
+          "engine": "Blink",
+          "engine_version": "133"
+        },
+        "134": {
+          "status": "planned",
+          "engine": "Blink",
+          "engine_version": "134"
         }
       }
     }
diff --git a/browsers/edge.json b/browsers/edge.json
index 539cc057533353..45568ecdb1b39d 100644
--- a/browsers/edge.json
+++ b/browsers/edge.json
@@ -374,42 +374,70 @@
         },
         "125": {
           "release_date": "2024-05-17",
-          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-stable-channel#version-1250253551-may-17-2024",
+          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-archive-stable-channel#version-1250253551-may-17-2024",
           "status": "retired",
           "engine": "Blink",
           "engine_version": "125"
         },
         "126": {
           "release_date": "2024-06-13",
-          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-stable-channel#version-1260259256-june-13-2024",
+          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-archive-stable-channel#version-1260259256-june-13-2024",
           "status": "retired",
           "engine": "Blink",
           "engine_version": "126"
         },
         "127": {
           "release_date": "2024-07-25",
-          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-stable-channel#version-1270265174-july-25-2024",
-          "status": "current",
+          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-archive-stable-channel#version-1270265174-july-25-2024",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "127"
         },
         "128": {
           "release_date": "2024-08-22",
-          "status": "beta",
+          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-archive-stable-channel#version-1280273942-august-22-2024",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "128"
         },
         "129": {
           "release_date": "2024-09-19",
-          "status": "nightly",
+          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-stable-channel#version-1290279252-september-19-2024",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "129"
         },
         "130": {
           "release_date": "2024-10-17",
-          "status": "planned",
+          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-stable-channel#version-1300284946-october-17-2024",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "130"
+        },
+        "131": {
+          "release_date": "2024-11-14",
+          "release_notes": "https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnote-stable-channel#version-1310290348-november-14-2024",
+          "status": "current",
+          "engine": "Blink",
+          "engine_version": "131"
+        },
+        "132": {
+          "release_date": "2025-01-16",
+          "status": "beta",
+          "engine": "Blink",
+          "engine_version": "132"
+        },
+        "133": {
+          "release_date": "2025-02-06",
+          "status": "nightly",
+          "engine": "Blink",
+          "engine_version": "133"
+        },
+        "134": {
+          "release_date": "2025-03-06",
+          "status": "planned",
+          "engine": "Blink",
+          "engine_version": "134"
         }
       }
     }
diff --git a/browsers/firefox.json b/browsers/firefox.json
index aca4e312938f61..d0c9425f5b06d6 100644
--- a/browsers/firefox.json
+++ b/browsers/firefox.json
@@ -928,30 +928,58 @@
         "129": {
           "release_date": "2024-08-06",
           "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/129",
-          "status": "current",
+          "status": "retired",
           "engine": "Gecko",
           "engine_version": "129"
         },
         "130": {
           "release_date": "2024-09-03",
           "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/130",
-          "status": "beta",
+          "status": "retired",
           "engine": "Gecko",
           "engine_version": "130"
         },
         "131": {
           "release_date": "2024-10-01",
           "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/131",
-          "status": "nightly",
+          "status": "retired",
           "engine": "Gecko",
           "engine_version": "131"
         },
         "132": {
           "release_date": "2024-10-29",
           "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/132",
-          "status": "planned",
+          "status": "retired",
           "engine": "Gecko",
           "engine_version": "132"
+        },
+        "133": {
+          "release_date": "2024-11-26",
+          "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/133",
+          "status": "current",
+          "engine": "Gecko",
+          "engine_version": "133"
+        },
+        "134": {
+          "release_date": "2025-01-07",
+          "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/134",
+          "status": "beta",
+          "engine": "Gecko",
+          "engine_version": "134"
+        },
+        "135": {
+          "release_date": "2025-02-04",
+          "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/135",
+          "status": "nightly",
+          "engine": "Gecko",
+          "engine_version": "135"
+        },
+        "136": {
+          "release_date": "2025-03-04",
+          "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/136",
+          "status": "planned",
+          "engine": "Gecko",
+          "engine_version": "136"
         }
       }
     }
diff --git a/browsers/firefox_android.json b/browsers/firefox_android.json
index 755c016e6e092e..0950d4dfb54042 100644
--- a/browsers/firefox_android.json
+++ b/browsers/firefox_android.json
@@ -795,30 +795,58 @@
         "129": {
           "release_date": "2024-08-06",
           "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/129",
-          "status": "current",
+          "status": "retired",
           "engine": "Gecko",
           "engine_version": "129"
         },
         "130": {
           "release_date": "2024-09-03",
           "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/130",
-          "status": "beta",
+          "status": "retired",
           "engine": "Gecko",
           "engine_version": "130"
         },
         "131": {
           "release_date": "2024-10-01",
           "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/131",
-          "status": "nightly",
+          "status": "retired",
           "engine": "Gecko",
           "engine_version": "131"
         },
         "132": {
           "release_date": "2024-10-29",
           "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/132",
-          "status": "planned",
+          "status": "retired",
           "engine": "Gecko",
           "engine_version": "132"
+        },
+        "133": {
+          "release_date": "2024-11-26",
+          "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/133",
+          "status": "current",
+          "engine": "Gecko",
+          "engine_version": "133"
+        },
+        "134": {
+          "release_date": "2025-01-07",
+          "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/134",
+          "status": "beta",
+          "engine": "Gecko",
+          "engine_version": "134"
+        },
+        "135": {
+          "release_date": "2025-02-04",
+          "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/135",
+          "status": "nightly",
+          "engine": "Gecko",
+          "engine_version": "135"
+        },
+        "136": {
+          "release_date": "2025-03-04",
+          "release_notes": "https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/136",
+          "status": "planned",
+          "engine": "Gecko",
+          "engine_version": "136"
         }
       }
     }
diff --git a/browsers/nodejs.json b/browsers/nodejs.json
index 82dd311311a1b2..c889e576f3ca2d 100644
--- a/browsers/nodejs.json
+++ b/browsers/nodejs.json
@@ -139,13 +139,6 @@
           "engine": "V8",
           "engine_version": "6.7"
         },
-        "10.5.0": {
-          "release_date": "2018-06-20",
-          "release_notes": "https://nodejs.org/en/blog/release/v10.5.0/",
-          "status": "retired",
-          "engine": "V8",
-          "engine_version": "6.7"
-        },
         "10.7.0": {
           "release_date": "2018-07-18",
           "release_notes": "https://nodejs.org/en/blog/release/v10.7.0/",
@@ -216,6 +209,13 @@
           "engine": "V8",
           "engine_version": "7.8"
         },
+        "12.19.0": {
+          "release_date": "2020-10-06",
+          "release_notes": "https://nodejs.org/en/blog/release/v12.19.0/",
+          "status": "retired",
+          "engine": "V8",
+          "engine_version": "7.8"
+        },
         "13.0.0": {
           "release_date": "2019-10-10",
           "release_notes": "https://nodejs.org/en/blog/release/v13.0.0/",
@@ -272,6 +272,13 @@
           "engine": "V8",
           "engine_version": "8.4"
         },
+        "14.17.0": {
+          "release_date": "2021-05-11",
+          "release_notes": "https://nodejs.org/en/blog/release/v14.17.0/",
+          "status": "retired",
+          "engine": "V8",
+          "engine_version": "8.4"
+        },
         "15.0.0": {
           "release_date": "2020-10-20",
           "release_notes": "https://nodejs.org/en/blog/release/v15.0.0/",
@@ -447,6 +454,13 @@
           "engine": "V8",
           "engine_version": "10.1"
         },
+        "18.13.0": {
+          "release_date": "2023-01-06",
+          "release_notes": "https://nodejs.org/en/blog/release/v18.13.0/",
+          "status": "retired",
+          "engine": "V8",
+          "engine_version": "10.1"
+        },
         "18.16.0": {
           "release_date": "2023-04-13",
           "release_notes": "https://nodejs.org/en/blog/release/v18.16.0/",
@@ -478,7 +492,7 @@
         "18.20.0": {
           "release_date": "2024-03-26",
           "release_notes": "https://nodejs.org/en/blog/release/v18.20.0/",
-          "status": "esr",
+          "status": "retired",
           "engine": "V8",
           "engine_version": "10.2"
         },
@@ -489,6 +503,13 @@
           "engine": "V8",
           "engine_version": "10.7"
         },
+        "19.2.0": {
+          "release_date": "2022-11-29",
+          "release_notes": "https://nodejs.org/en/blog/release/v19.2.0/",
+          "status": "retired",
+          "engine": "V8",
+          "engine_version": "10.7"
+        },
         "19.5.0": {
           "release_date": "2023-01-24",
           "release_notes": "https://nodejs.org/en/blog/release/v19.5.0/",
@@ -552,6 +573,13 @@
           "engine": "V8",
           "engine_version": "11.3"
         },
+        "20.8.0": {
+          "release_date": "2023-09-29",
+          "release_notes": "https://nodejs.org/en/blog/release/v20.8.0",
+          "status": "retired",
+          "engine": "V8",
+          "engine_version": "11.3"
+        },
         "20.10.0": {
           "release_date": "2023-11-22",
           "release_notes": "https://nodejs.org/en/blog/release/v20.10.0",
@@ -562,7 +590,14 @@
         "20.12.0": {
           "release_date": "2024-03-26",
           "release_notes": "https://nodejs.org/en/blog/release/v20.12.0",
-          "status": "esr",
+          "status": "retired",
+          "engine": "V8",
+          "engine_version": "11.3"
+        },
+        "20.17.0": {
+          "release_date": "2024-08-21",
+          "release_notes": "https://nodejs.org/en/blog/release/v20.17.0",
+          "status": "retired",
           "engine": "V8",
           "engine_version": "11.3"
         },
@@ -573,6 +608,13 @@
           "engine": "V8",
           "engine_version": "11.8"
         },
+        "21.1.0": {
+          "release_date": "2023-10-24",
+          "release_notes": "https://nodejs.org/en/blog/release/v21.1.0",
+          "status": "retired",
+          "engine": "V8",
+          "engine_version": "11.8"
+        },
         "21.2.0": {
           "release_date": "2023-11-14",
           "release_notes": "https://nodejs.org/en/blog/release/v21.2.0",
@@ -580,12 +622,33 @@
           "engine": "V8",
           "engine_version": "11.8"
         },
+        "21.7.0": {
+          "release_date": "2024-03-06",
+          "release_notes": "https://nodejs.org/en/blog/release/v21.7.0",
+          "status": "retired",
+          "engine": "V8",
+          "engine_version": "11.8"
+        },
         "22.0.0": {
-          "release_date": "2024-04-25",
+          "release_date": "2024-04-24",
           "release_notes": "https://nodejs.org/en/blog/release/v22.0.0",
-          "status": "current",
+          "status": "retired",
+          "engine": "V8",
+          "engine_version": "12.4"
+        },
+        "22.1.0": {
+          "release_date": "2024-05-02",
+          "release_notes": "https://nodejs.org/en/blog/release/v22.1.0",
+          "status": "esr",
           "engine": "V8",
           "engine_version": "12.4"
+        },
+        "23.0.0": {
+          "release_date": "2024-10-16",
+          "release_notes": "https://nodejs.org/en/blog/release/v23.0.0",
+          "status": "current",
+          "engine": "V8",
+          "engine_version": "12.9"
         }
       }
     }
diff --git a/browsers/opera.json b/browsers/opera.json
index 24b453fdb25f48..a4b611c32371aa 100644
--- a/browsers/opera.json
+++ b/browsers/opera.json
@@ -837,19 +837,47 @@
         "111": {
           "release_date": "2024-06-12",
           "release_notes": "https://blogs.opera.com/desktop/2024/06/opera-111/",
-          "status": "current",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "125"
         },
         "112": {
-          "status": "beta",
+          "release_date": "2024-07-11",
+          "release_notes": "https://blogs.opera.com/desktop/2024/07/opera-112/",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "126"
         },
         "113": {
-          "status": "nightly",
+          "release_date": "2024-08-22",
+          "release_notes": "https://blogs.opera.com/desktop/2024/08/opera-113/",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "127"
+        },
+        "114": {
+          "release_date": "2024-09-25",
+          "release_notes": "https://blogs.opera.com/desktop/2024/09/opera-114/",
+          "status": "retired",
+          "engine": "Blink",
+          "engine_version": "128"
+        },
+        "115": {
+          "release_date": "2024-11-27",
+          "release_notes": "https://blogs.opera.com/desktop/2024/11/opera-115/",
+          "status": "current",
+          "engine": "Blink",
+          "engine_version": "130"
+        },
+        "116": {
+          "status": "beta",
+          "engine": "Blink",
+          "engine_version": "131"
+        },
+        "117": {
+          "status": "nightly",
+          "engine": "Blink",
+          "engine_version": "132"
         }
       }
     }
diff --git a/browsers/opera_android.json b/browsers/opera_android.json
index a9238b161b4d62..9185f306ded17c 100644
--- a/browsers/opera_android.json
+++ b/browsers/opera_android.json
@@ -480,9 +480,28 @@
         "83": {
           "release_date": "2024-06-25",
           "release_notes": "https://blogs.opera.com/mobile/2024/06/opera-android-version-image-generation/",
-          "status": "current",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "126"
+        },
+        "84": {
+          "release_date": "2024-08-26",
+          "status": "retired",
+          "engine": "Blink",
+          "engine_version": "127"
+        },
+        "85": {
+          "release_date": "2024-10-29",
+          "release_notes": "https://blogs.opera.com/mobile/2024/10/opera-for-android-adds-image-understanding/",
+          "status": "retired",
+          "engine": "Blink",
+          "engine_version": "128"
+        },
+        "86": {
+          "release_date": "2024-12-02",
+          "status": "current",
+          "engine": "Blink",
+          "engine_version": "130"
         }
       }
     }
diff --git a/browsers/safari.json b/browsers/safari.json
index 8403cdc2fc6884..7b2a3aaad1f55c 100644
--- a/browsers/safari.json
+++ b/browsers/safari.json
@@ -312,17 +312,31 @@
           "engine_version": "618.2.12"
         },
         "17.6": {
-          "release_date": "2024-07-22",
+          "release_date": "2024-07-29",
           "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-17_6-release-notes",
-          "status": "current",
+          "status": "retired",
           "engine": "WebKit",
           "engine_version": "618.3.11"
         },
         "18": {
+          "release_date": "2024-09-16",
           "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-18-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "619.1.26"
+        },
+        "18.1": {
+          "release_date": "2024-10-28",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-18_1-release-notes",
+          "status": "current",
+          "engine": "WebKit",
+          "engine_version": "619.2.8"
+        },
+        "18.2": {
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-18_2-release-notes",
           "status": "beta",
           "engine": "WebKit",
-          "engine_version": "619.1.15"
+          "engine_version": "620.1.16"
         }
       }
     }
diff --git a/browsers/safari_ios.json b/browsers/safari_ios.json
index a05722181e7bf0..e7a52f7e97b49f 100644
--- a/browsers/safari_ios.json
+++ b/browsers/safari_ios.json
@@ -284,17 +284,31 @@
           "engine_version": "618.2.12"
         },
         "17.6": {
-          "release_date": "2024-07-22",
+          "release_date": "2024-07-29",
           "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-17_6-release-notes",
-          "status": "current",
+          "status": "retired",
           "engine": "WebKit",
           "engine_version": "618.3.11"
         },
         "18": {
+          "release_date": "2024-09-16",
           "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-18-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "619.1.26"
+        },
+        "18.1": {
+          "release_date": "2024-10-28",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-18_1-release-notes",
+          "status": "current",
+          "engine": "WebKit",
+          "engine_version": "619.2.8"
+        },
+        "18.2": {
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-18_2-release-notes",
           "status": "beta",
           "engine": "WebKit",
-          "engine_version": "619.1.15"
+          "engine_version": "620.1.16"
         }
       }
     }
diff --git a/browsers/samsunginternet_android.json b/browsers/samsunginternet_android.json
index cd8a8a4ed4e678..1681b2b6fc6438 100644
--- a/browsers/samsunginternet_android.json
+++ b/browsers/samsunginternet_android.json
@@ -285,9 +285,21 @@
         },
         "25.0": {
           "release_date": "2024-04-24",
-          "status": "current",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "121"
+        },
+        "26.0": {
+          "release_date": "2024-06-07",
+          "status": "retired",
+          "engine": "Blink",
+          "engine_version": "122"
+        },
+        "27.0": {
+          "release_date": "2024-11-06",
+          "status": "current",
+          "engine": "Blink",
+          "engine_version": "125"
         }
       }
     }
diff --git a/browsers/webview_android.json b/browsers/webview_android.json
index 25d08ed3e1941e..2be23e9b37d808 100644
--- a/browsers/webview_android.json
+++ b/browsers/webview_android.json
@@ -691,15 +691,48 @@
         },
         "128": {
           "release_date": "2024-08-20",
-          "status": "current",
+          "release_notes": "https://developer.chrome.com/release-notes/128",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "128"
         },
         "129": {
           "release_date": "2024-09-17",
-          "status": "beta",
+          "release_notes": "https://developer.chrome.com/release-notes/129",
+          "status": "retired",
           "engine": "Blink",
           "engine_version": "129"
+        },
+        "130": {
+          "release_date": "2024-10-15",
+          "release_notes": "https://developer.chrome.com/release-notes/130",
+          "status": "retired",
+          "engine": "Blink",
+          "engine_version": "130"
+        },
+        "131": {
+          "release_date": "2024-11-12",
+          "release_notes": "https://developer.chrome.com/release-notes/131",
+          "status": "current",
+          "engine": "Blink",
+          "engine_version": "131"
+        },
+        "132": {
+          "release_date": "2025-01-14",
+          "status": "beta",
+          "engine": "Blink",
+          "engine_version": "132"
+        },
+        "133": {
+          "release_date": "2025-02-04",
+          "status": "nightly",
+          "engine": "Blink",
+          "engine_version": "133"
+        },
+        "134": {
+          "status": "planned",
+          "engine": "Blink",
+          "engine_version": "134"
         }
       }
     }
diff --git a/browsers/webview_ios.json b/browsers/webview_ios.json
new file mode 100644
index 00000000000000..dcc5d60948ab33
--- /dev/null
+++ b/browsers/webview_ios.json
@@ -0,0 +1,316 @@
+{
+  "browsers": {
+    "webview_ios": {
+      "name": "WebView on iOS",
+      "type": "mobile",
+      "upstream": "safari_ios",
+      "accepts_flags": false,
+      "accepts_webextensions": false,
+      "releases": {
+        "1": {
+          "release_date": "2007-06-29",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "522.11"
+        },
+        "2": {
+          "release_date": "2008-07-11",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "525.18"
+        },
+        "3": {
+          "release_date": "2009-06-17",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "528.18"
+        },
+        "3.2": {
+          "release_date": "2010-04-03",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "531.21"
+        },
+        "4": {
+          "release_date": "2010-06-21",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "532.9"
+        },
+        "4.2": {
+          "release_date": "2010-11-22",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "533.17"
+        },
+        "5": {
+          "release_date": "2011-10-12",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "534.46"
+        },
+        "6": {
+          "release_date": "2012-09-10",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "536.26"
+        },
+        "7": {
+          "release_date": "2013-09-18",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "537.51"
+        },
+        "8": {
+          "release_date": "2014-09-17",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "600.1.4"
+        },
+        "9": {
+          "release_date": "2015-09-16",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "601.1.56"
+        },
+        "9.3": {
+          "release_date": "2016-03-21",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "601.5.17"
+        },
+        "10": {
+          "release_date": "2016-09-13",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "602.1.50"
+        },
+        "10.3": {
+          "release_date": "2017-03-27",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "603.2.1"
+        },
+        "11": {
+          "release_date": "2017-09-19",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "604.2.4"
+        },
+        "11.3": {
+          "release_date": "2018-03-29",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "605.1.33"
+        },
+        "12": {
+          "release_date": "2018-09-17",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-12-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "606.1.36"
+        },
+        "12.2": {
+          "release_date": "2019-03-25",
+          "release_notes": "https://developer.apple.com/documentation/safari_release_notes/safari_12_1_release_notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "607.1.40"
+        },
+        "13": {
+          "release_date": "2019-09-19",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-13-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "608.2.11"
+        },
+        "13.4": {
+          "release_date": "2020-03-24",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-13_1-release_notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "609.1.20"
+        },
+        "14": {
+          "release_date": "2020-09-16",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-14-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "610.1.28"
+        },
+        "14.5": {
+          "release_date": "2021-04-26",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-14_1-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "611.1.21"
+        },
+        "15": {
+          "release_date": "2021-09-20",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-15-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "612.1.27"
+        },
+        "15.1": {
+          "release_date": "2021-10-25",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "612.2.9"
+        },
+        "15.2": {
+          "release_date": "2021-12-13",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-15_2-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "612.3.6"
+        },
+        "15.3": {
+          "release_date": "2022-01-26",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "612.4.9"
+        },
+        "15.4": {
+          "release_date": "2022-03-14",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-15_4-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "613.1.17"
+        },
+        "15.5": {
+          "release_date": "2022-05-16",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-15_5-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "613.2.7"
+        },
+        "15.6": {
+          "release_date": "2022-07-20",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-15_6-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "613.3.9"
+        },
+        "16": {
+          "release_date": "2022-09-12",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-16-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "614.1.25"
+        },
+        "16.1": {
+          "release_date": "2022-10-24",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-16_1-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "614.2.9"
+        },
+        "16.2": {
+          "release_date": "2022-12-13",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-16_2-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "614.3.7"
+        },
+        "16.3": {
+          "release_date": "2023-01-23",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-16_3-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "614.4.6"
+        },
+        "16.4": {
+          "release_date": "2023-03-27",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-16_4-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "615.1.26"
+        },
+        "16.5": {
+          "release_date": "2023-05-18",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-16_5-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "615.2.9"
+        },
+        "16.6": {
+          "release_date": "2023-07-24",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-16_6-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "615.3.12"
+        },
+        "17": {
+          "release_date": "2023-09-18",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-17-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "616.1.27"
+        },
+        "17.1": {
+          "release_date": "2023-10-25",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-17_1-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "616.2.9"
+        },
+        "17.2": {
+          "release_date": "2023-12-11",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-17_2-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "617.1.17"
+        },
+        "17.3": {
+          "release_date": "2024-01-22",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-17_3-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "617.2.4"
+        },
+        "17.4": {
+          "release_date": "2024-03-05",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-17_4-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "618.1.15"
+        },
+        "17.5": {
+          "release_date": "2024-05-13",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-17_5-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "618.2.12"
+        },
+        "17.6": {
+          "release_date": "2024-07-29",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-17_6-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "618.3.11"
+        },
+        "18": {
+          "release_date": "2024-09-16",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-18-release-notes",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "619.1.26"
+        },
+        "18.1": {
+          "release_date": "2024-10-28",
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-18_1-release-notes",
+          "status": "current",
+          "engine": "WebKit",
+          "engine_version": "619.2.8"
+        },
+        "18.2": {
+          "release_notes": "https://developer.apple.com/documentation/safari-release-notes/safari-18_2-release-notes",
+          "status": "beta",
+          "engine": "WebKit",
+          "engine_version": "620.1.16"
+        }
+      }
+    }
+  }
+}
diff --git a/css/at-rules/charset.json b/css/at-rules/charset.json
index 57d07e51a3c21e..5f75be42f41ccb 100644
--- a/css/at-rules/charset.json
+++ b/css/at-rules/charset.json
@@ -3,9 +3,12 @@
     "at-rules": {
       "charset": {
         "__compat": {
-          "description": "<code>@charset</code>",
+          "description": "`@charset`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@charset",
           "spec_url": "https://drafts.csswg.org/css2/#charset①",
+          "tags": [
+            "web-features:charset"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -41,7 +44,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/at-rules/container.json b/css/at-rules/container.json
index 541336ae716055..11f885b36840c7 100644
--- a/css/at-rules/container.json
+++ b/css/at-rules/container.json
@@ -3,9 +3,9 @@
     "at-rules": {
       "container": {
         "__compat": {
-          "description": "<code>@container</code>",
+          "description": "`@container`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@container",
-          "spec_url": "https://drafts.csswg.org/css-contain-3/#container-rule",
+          "spec_url": "https://drafts.csswg.org/css-conditional-5/#container-rule",
           "tags": [
             "web-features:container-queries"
           ],
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,14 +43,14 @@
           "__compat": {
             "description": "Style queries for custom properties",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@container",
-            "spec_url": "https://drafts.csswg.org/css-contain-3/#style-container",
+            "spec_url": "https://drafts.csswg.org/css-conditional-5/#style-container",
             "tags": [
               "web-features:container-style-queries"
             ],
             "support": {
               "chrome": {
                 "version_added": "111",
-                "impl_url": "https://crbug.com/1302630"
+                "impl_url": "https://crbug.com/40217044"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -65,11 +66,13 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "18"
+                "version_added": "18",
+                "notes": "The document element cannot be a container. See [bug 271040](https://webkit.org/b/271040)."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/at-rules/counter-style.json b/css/at-rules/counter-style.json
index a1b9b89ad7376d..b4d0c7f797cbdf 100644
--- a/css/at-rules/counter-style.json
+++ b/css/at-rules/counter-style.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "counter-style": {
         "__compat": {
-          "description": "<code>@counter-style</code>",
+          "description": "`@counter-style`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@counter-style",
           "spec_url": "https://drafts.csswg.org/css-counter-styles/#the-counter-style-rule",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -66,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -177,7 +181,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -214,7 +219,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -251,7 +257,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -288,7 +295,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -325,7 +333,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -345,14 +354,14 @@
               "chrome": {
                 "version_added": "91",
                 "partial_implementation": true,
-                "notes": "Does not support <code>&lt;image&gt;</code> as a value for the <code>symbols</code> descriptor."
+                "notes": "Does not support `&lt;image&gt;` as a value for the `symbols` descriptor."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
                 "version_added": "33",
                 "partial_implementation": true,
-                "notes": "Does not support <code>&lt;image&gt;</code> as a value for the <code>symbols</code> descriptor."
+                "notes": "Does not support `&lt;image&gt;` as a value for the `symbols` descriptor."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -366,7 +375,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -403,7 +413,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/at-rules/document.json b/css/at-rules/document.json
index b2befdf5b61353..12c27d2473d4cd 100644
--- a/css/at-rules/document.json
+++ b/css/at-rules/document.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "document": {
         "__compat": {
-          "description": "<code>@document</code>",
+          "description": "`@document`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@document",
           "support": {
             "chrome": {
@@ -16,7 +16,7 @@
                 "prefix": "-moz-",
                 "version_added": "61",
                 "partial_implementation": true,
-                "notes": "Only supports an empty <code>url-prefix()</code> value, which is supported due to its <a href='https://css-tricks.com/snippets/css/css-hacks-targeting-firefox/'>use in Firefox browser detection</a>. Still supported in user stylesheets."
+                "notes": "Only supports an empty `url-prefix()` value, which is supported due to its [use in Firefox browser detection](https://css-tricks.com/snippets/css/css-hacks-targeting-firefox/). Still supported in user stylesheets."
               },
               {
                 "prefix": "-moz-",
@@ -36,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/at-rules/font-face.json b/css/at-rules/font-face.json
index 001194338d2b3d..6fff2303dc400c 100644
--- a/css/at-rules/font-face.json
+++ b/css/at-rules/font-face.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "font-face": {
         "__compat": {
-          "description": "<code>@font-face</code>",
+          "description": "`@font-face`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-face-rule",
           "tags": [
@@ -38,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,6 +50,9 @@
         "OpenType_CBDT_CBLC": {
           "__compat": {
             "description": "OpenType CBDT and CBLC rendering",
+            "tags": [
+              "web-features:font-face"
+            ],
             "support": {
               "chrome": {
                 "version_added": "66"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,6 +87,9 @@
         "OpenType_COLRv0": {
           "__compat": {
             "description": "OpenType COLRv0 rendering",
+            "tags": [
+              "web-features:colrv0"
+            ],
             "support": {
               "chrome": {
                 "version_added": "53"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -139,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -151,6 +161,9 @@
         "OpenType_SBIX": {
           "__compat": {
             "description": "OpenType SBIX rendering",
+            "tags": [
+              "web-features:font-face"
+            ],
             "support": {
               "chrome": {
                 "version_added": "66"
@@ -172,7 +185,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -184,6 +198,9 @@
         "OpenType_SVG": {
           "__compat": {
             "description": "OpenType SVG rendering",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -205,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -244,7 +262,8 @@
               "webview_android": {
                 "version_added": "≤37",
                 "version_removed": "38"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -288,7 +307,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -331,7 +351,8 @@
                 "version_added": "10"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -344,6 +365,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/ascent-override",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-metrics-override-desc",
+            "tags": [
+              "web-features:font-metric-overrides"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -365,7 +389,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -378,6 +403,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/descent-override",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-metrics-override-desc",
+            "tags": [
+              "web-features:font-metric-overrides"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -399,7 +427,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -412,6 +441,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/font-display",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-display-desc",
+            "tags": [
+              "web-features:font-display"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -435,7 +467,8 @@
               "samsunginternet_android": {
                 "version_added": "11.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -480,7 +513,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2.2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -493,6 +527,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/font-feature-settings",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-rend-desc",
+            "tags": [
+              "web-features:font-feature-settings"
+            ],
             "support": {
               "chrome": {
                 "version_added": false,
@@ -503,12 +540,12 @@
               "firefox": [
                 {
                   "version_added": "34",
-                  "notes": "The <a href='https://mpeg.chiariglione.org/standards/mpeg-4/open-font-format/text-isoiec-cd-14496-22-3rd-edition'>ISO/IEC CD 14496-22 3rd edition</a> suggests using the <code>ssty</code> feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the <a href='https://developer.mozilla.org/docs/Web/MathML'>MathML</a> rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the <code>dtls</code> feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS."
+                  "notes": "The [ISO/IEC CD 14496-22 3rd edition](https://mpeg.chiariglione.org/standards/mpeg-4/open-font-format/text-isoiec-cd-14496-22-3rd-edition) suggests using the `ssty` feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the [MathML](https://developer.mozilla.org/docs/Web/MathML) rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the `dtls` feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS."
                 },
                 {
                   "prefix": "-moz-",
                   "version_added": "15",
-                  "notes": "From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See <a href='https://hacks.mozilla.org/2010/11/firefox-4-font-feature-support/'>OpenType Font Feature support in Firefox 4</a>."
+                  "notes": "From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See [OpenType Font Feature support in Firefox 4](https://hacks.mozilla.org/2010/11/firefox-4-font-feature-support/)."
                 }
               ],
               "firefox_android": "mirror",
@@ -523,7 +560,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -536,6 +574,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/font-stretch",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-prop-desc",
+            "tags": [
+              "web-features:font-stretch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "62"
@@ -563,7 +604,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -576,6 +618,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/font-style",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-prop-desc",
+            "tags": [
+              "web-features:font-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -605,7 +650,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -618,6 +664,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-prop",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -647,7 +696,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -660,6 +710,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/font-variation-settings",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-rend-desc",
+            "tags": [
+              "web-features:font-variation-settings"
+            ],
             "support": {
               "chrome": {
                 "version_added": false,
@@ -682,7 +735,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -695,6 +749,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/font-weight",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-prop-desc",
+            "tags": [
+              "web-features:font-weight"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -724,7 +781,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -737,6 +795,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/line-gap-override",
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-metrics-override-desc",
+            "tags": [
+              "web-features:font-metric-overrides"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -758,7 +819,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -771,6 +833,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/size-adjust",
             "spec_url": "https://drafts.csswg.org/css-fonts-5/#size-adjust-desc",
+            "tags": [
+              "web-features:font-size-adjust"
+            ],
             "support": {
               "chrome": {
                 "version_added": "92"
@@ -794,7 +859,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -839,7 +905,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2.2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -850,11 +917,14 @@
           "drop_invalid_item": {
             "__compat": {
               "description": "Drop invalid item (not src string)",
+              "tags": [
+                "web-features:font-face"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "108",
                   "partial_implementation": true,
-                  "notes": "Chrome drops invalid item for <code>tech()</code> but not other invalid values"
+                  "notes": "Chrome drops invalid item for `tech()` but not other invalid values"
                 },
                 "chrome_android": "mirror",
                 "edge": "mirror",
@@ -873,7 +943,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -884,7 +955,10 @@
           },
           "format_keyword": {
             "__compat": {
-              "description": "<code>format(keyword)</code>",
+              "description": "`format(keyword)`",
+              "tags": [
+                "web-features:font-face"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "108"
@@ -908,7 +982,8 @@
                   "version_added": "5"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -919,7 +994,10 @@
           },
           "format_variations": {
             "__compat": {
-              "description": "<code>format('*-variations')</code>",
+              "description": "`format('*-variations')`",
+              "tags": [
+                "web-features:font-face"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "66"
@@ -943,7 +1021,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -954,7 +1033,10 @@
           },
           "tech_keyword": {
             "__compat": {
-              "description": "<code>tech(keyword)</code>",
+              "description": "`tech(keyword)`",
+              "tags": [
+                "web-features:font-face"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "108"
@@ -976,7 +1058,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -990,6 +1073,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face/unicode-range",
             "spec_url": "https://drafts.csswg.org/css-fonts/#unicode-range-desc",
+            "tags": [
+              "web-features:font-face"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1017,7 +1103,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/at-rules/font-feature-values.json b/css/at-rules/font-feature-values.json
index 0b671ce4b0bcc3..af6460f126aba2 100644
--- a/css/at-rules/font-feature-values.json
+++ b/css/at-rules/font-feature-values.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "font-feature-values": {
         "__compat": {
-          "description": "<code>@font-feature-values</code>",
+          "description": "`@font-feature-values`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-feature-values",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-feature-values",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,7 +41,7 @@
         },
         "annotation": {
           "__compat": {
-            "description": "<code>@annotation</code>",
+            "description": "`@annotation`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-feature-values#annotation",
             "tags": [
               "web-features:font-variant-alternates"
@@ -66,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,7 +79,7 @@
         },
         "character-variant": {
           "__compat": {
-            "description": "<code>@character-variant</code>",
+            "description": "`@character-variant`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-feature-values#character-variant",
             "tags": [
               "web-features:font-variant-alternates"
@@ -103,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,7 +117,7 @@
         },
         "historical-forms": {
           "__compat": {
-            "description": "<code>@historical-forms</code>",
+            "description": "`@historical-forms`",
             "tags": [
               "web-features:font-variant-alternates"
             ],
@@ -139,7 +142,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +154,7 @@
         },
         "ornaments": {
           "__compat": {
-            "description": "<code>@ornaments</code>",
+            "description": "`@ornaments`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-feature-values#ornaments",
             "tags": [
               "web-features:font-variant-alternates"
@@ -176,7 +180,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -187,7 +192,7 @@
         },
         "styleset": {
           "__compat": {
-            "description": "<code>@styleset</code>",
+            "description": "`@styleset`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-feature-values#styleset",
             "tags": [
               "web-features:font-variant-alternates"
@@ -213,7 +218,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -224,7 +230,7 @@
         },
         "stylistic": {
           "__compat": {
-            "description": "<code>@stylistic</code>",
+            "description": "`@stylistic`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-feature-values#stylistic",
             "tags": [
               "web-features:font-variant-alternates"
@@ -250,7 +256,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -261,7 +268,7 @@
         },
         "swash": {
           "__compat": {
-            "description": "<code>@swash</code>",
+            "description": "`@swash`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-feature-values#swash",
             "tags": [
               "web-features:font-variant-alternates"
@@ -287,7 +294,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/at-rules/font-palette-values.json b/css/at-rules/font-palette-values.json
index 6df8e24ba62121..419d06d44a3498 100644
--- a/css/at-rules/font-palette-values.json
+++ b/css/at-rules/font-palette-values.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "font-palette-values": {
         "__compat": {
-          "description": "<code>@font-palette-values</code>",
+          "description": "`@font-palette-values`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-palette-values",
           "spec_url": "https://drafts.csswg.org/css-fonts/#at-ruledef-font-palette-values",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -65,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -101,7 +103,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -137,7 +140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/at-rules/import.json b/css/at-rules/import.json
index d19308dc04a786..9be16189b2a88e 100644
--- a/css/at-rules/import.json
+++ b/css/at-rules/import.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "import": {
         "__compat": {
-          "description": "<code>@import</code>",
+          "description": "`@import`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@import",
           "spec_url": "https://drafts.csswg.org/css-cascade-5/#at-import",
           "tags": [
@@ -38,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,7 +49,8 @@
         },
         "layer": {
           "__compat": {
-            "description": "<code>layer(&lt;layer-name&gt;)</code>",
+            "description": "`layer(&lt;layer-name&gt;)`",
+            "spec_url": "https://drafts.csswg.org/css-cascade-5/#ref-for-typedef-layer-name",
             "tags": [
               "web-features:cascade-layers"
             ],
@@ -73,7 +75,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -84,7 +87,7 @@
         },
         "supports": {
           "__compat": {
-            "description": "<code>supports()</code> as import condition",
+            "description": "`supports()` as import condition",
             "spec_url": "https://drafts.csswg.org/css-cascade-5/#typedef-import-conditions",
             "tags": [
               "web-features:supports"
@@ -111,7 +114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/at-rules/keyframes.json b/css/at-rules/keyframes.json
index 27bf6796e9ebd0..55492daa6d6a07 100644
--- a/css/at-rules/keyframes.json
+++ b/css/at-rules/keyframes.json
@@ -3,9 +3,12 @@
     "at-rules": {
       "keyframes": {
         "__compat": {
-          "description": "<code>@keyframes</code>",
+          "description": "`@keyframes`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@keyframes",
           "spec_url": "https://drafts.csswg.org/css-animations/#keyframes",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -93,7 +96,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +107,10 @@
         },
         "ignore_important_declarations": {
           "__compat": {
-            "description": "Ignore <code>!important</code> declarations",
+            "description": "Ignore `!important` declarations",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "45"
@@ -125,7 +132,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -139,7 +147,7 @@
             "description": "Named timeline range keyframe selectors",
             "spec_url": "https://drafts.csswg.org/scroll-animations/#named-range-keyframes",
             "tags": [
-              "web-features:scroll-driven-animations"
+              "web-features:animations-css"
             ],
             "support": {
               "chrome": {
@@ -164,7 +172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/at-rules/layer.json b/css/at-rules/layer.json
index 54a6eb4b555d3d..54d3b464e31474 100644
--- a/css/at-rules/layer.json
+++ b/css/at-rules/layer.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "layer": {
         "__compat": {
-          "description": "<code>@layer</code>",
+          "description": "`@layer`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@layer",
           "spec_url": "https://drafts.csswg.org/css-cascade-5/#layering",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/at-rules/media.json b/css/at-rules/media.json
index 31359353062000..62c723c7114eb5 100644
--- a/css/at-rules/media.json
+++ b/css/at-rules/media.json
@@ -3,12 +3,15 @@
     "at-rules": {
       "media": {
         "__compat": {
-          "description": "<code>@media</code>",
+          "description": "`@media`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media",
           "spec_url": [
             "https://drafts.csswg.org/mediaqueries/#media-descriptor-table",
             "https://drafts.csswg.org/css-conditional-3/#at-media"
           ],
+          "tags": [
+            "web-features:media-queries"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -50,9 +54,12 @@
         },
         "any-hover": {
           "__compat": {
-            "description": "<code>any-hover</code> media feature",
+            "description": "`any-hover` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/any-hover",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#any-input",
+            "tags": [
+              "web-features:interaction"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -78,7 +85,8 @@
               "samsunginternet_android": {
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -89,9 +97,12 @@
         },
         "any-pointer": {
           "__compat": {
-            "description": "<code>any-pointer</code> media feature",
+            "description": "`any-pointer` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/any-pointer",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#any-input",
+            "tags": [
+              "web-features:interaction"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -115,7 +126,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -126,9 +138,12 @@
         },
         "aspect-ratio": {
           "__compat": {
-            "description": "<code>aspect-ratio</code> media feature",
+            "description": "`aspect-ratio` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/aspect-ratio",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#aspect-ratio",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -158,7 +173,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -169,9 +185,12 @@
         },
         "calc": {
           "__compat": {
-            "description": "<code>calc()</code> expressions",
+            "description": "`calc()` expressions",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/calc",
             "spec_url": "https://drafts.csswg.org/css-values/#calc-notation",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "66"
@@ -193,7 +212,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -204,9 +224,12 @@
         },
         "color": {
           "__compat": {
-            "description": "<code>color</code> media feature",
+            "description": "`color` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/color",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#color",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -238,7 +261,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -249,9 +273,12 @@
         },
         "color-gamut": {
           "__compat": {
-            "description": "<code>color-gamut</code> media feature",
+            "description": "`color-gamut` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/color-gamut",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#color-gamut",
+            "tags": [
+              "web-features:color-gamut"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -273,7 +300,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -284,9 +312,12 @@
         },
         "color-index": {
           "__compat": {
-            "description": "<code>color-index</code> media feature",
+            "description": "`color-index` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/color-index",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#color-index",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "29"
@@ -308,7 +339,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -319,9 +351,12 @@
         },
         "device-aspect-ratio": {
           "__compat": {
-            "description": "<code>device-aspect-ratio</code> media feature",
+            "description": "`device-aspect-ratio` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/device-aspect-ratio",
-            "spec_url": "https://drafts.csswg.org/mediaqueries/#device-aspect-ratio",
+            "spec_url": [
+              "https://drafts.csswg.org/mediaqueries/#device-aspect-ratio",
+              "https://drafts.csswg.org/mediaqueries-4/#device-aspect-ratio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -353,7 +388,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -364,9 +400,12 @@
         },
         "device-height": {
           "__compat": {
-            "description": "<code>device-height</code> media feature",
+            "description": "`device-height` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/device-height",
-            "spec_url": "https://drafts.csswg.org/mediaqueries/#device-height",
+            "spec_url": [
+              "https://drafts.csswg.org/mediaqueries/#device-height",
+              "https://drafts.csswg.org/mediaqueries-4/#device-height"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -398,7 +437,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -409,7 +449,7 @@
         },
         "device-posture": {
           "__compat": {
-            "description": "<code>device-posture</code> media feature",
+            "description": "`device-posture` media feature",
             "spec_url": "https://w3c.github.io/device-posture/#the-device-posture-media-feature",
             "tags": [
               "web-features:device-posture"
@@ -437,7 +477,8 @@
               "samsunginternet_android": {
                 "version_added": "16.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -448,9 +489,12 @@
         },
         "device-width": {
           "__compat": {
-            "description": "<code>device-width</code> media feature",
+            "description": "`device-width` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/device-width",
-            "spec_url": "https://drafts.csswg.org/mediaqueries/#device-width",
+            "spec_url": [
+              "https://drafts.csswg.org/mediaqueries/#device-width",
+              "https://drafts.csswg.org/mediaqueries-4/#device-width"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -482,7 +526,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -493,9 +538,12 @@
         },
         "display-mode": {
           "__compat": {
-            "description": "<code>display-mode</code> media feature",
+            "description": "`display-mode` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/display-mode",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#display-modes",
+            "tags": [
+              "web-features:display-mode"
+            ],
             "support": {
               "chrome": {
                 "version_added": "42"
@@ -504,12 +552,12 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "47",
-                "notes": "Firefox 47 and later support <code>display-mode</code> values <code>fullscreen</code> and <code>browser</code>. Firefox 57 added support for <code>minimal-ui</code> and <code>standalone</code> values."
+                "notes": "Firefox 47 and later support `display-mode` values `fullscreen` and `browser`. Firefox 57 added support for `minimal-ui` and `standalone` values."
               },
               "firefox_android": {
                 "version_added": "47",
                 "partial_implementation": true,
-                "notes": "Only supports the <code>browser</code> value, which always reports <code>true</code>."
+                "notes": "Only supports the `browser` value, which always reports `true`."
               },
               "ie": {
                 "version_added": false
@@ -524,7 +572,8 @@
                 "version_added": "12.2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -534,8 +583,11 @@
           },
           "picture-in-picture": {
             "__compat": {
-              "description": "<code>picture-in-picture</code> value",
+              "description": "`picture-in-picture` value",
               "spec_url": "https://drafts.csswg.org/mediaqueries-5/#valdef-media-display-mode-picture-in-picture",
+              "tags": [
+                "web-features:display-mode"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "123"
@@ -559,7 +611,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -571,9 +624,12 @@
         },
         "dynamic-range": {
           "__compat": {
-            "description": "<code>dynamic-range</code> media feature",
+            "description": "`dynamic-range` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/dynamic-range",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#dynamic-range",
+            "tags": [
+              "web-features:dynamic-range"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -595,7 +651,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -606,9 +663,12 @@
         },
         "forced-colors": {
           "__compat": {
-            "description": "<code>forced-colors</code> media feature",
+            "description": "`forced-colors` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/forced-colors",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#forced-colors",
+            "tags": [
+              "web-features:forced-colors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -632,7 +692,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -643,9 +704,12 @@
         },
         "grid": {
           "__compat": {
-            "description": "<code>grid</code> media feature",
+            "description": "`grid` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/grid",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#grid",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -677,7 +741,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -688,9 +753,12 @@
         },
         "height": {
           "__compat": {
-            "description": "<code>height</code> media feature",
+            "description": "`height` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/height",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#height",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -722,7 +790,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -733,13 +802,16 @@
         },
         "hover": {
           "__compat": {
-            "description": "<code>hover</code> media feature",
+            "description": "`hover` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/hover",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#hover",
+            "tags": [
+              "web-features:interaction"
+            ],
             "support": {
               "chrome": {
                 "version_added": "38",
-                "notes": "Before Chrome 41, the implementation was buggy and reported <code>(hover: none)</code> on non-touch-based computers with a mouse/trackpad. See <a href='https://crbug.com/441613'>bug 441613</a>."
+                "notes": "Before Chrome 41, the implementation was buggy and reported `(hover: none)` on non-touch-based computers with a mouse/trackpad. See [bug 40397980](https://crbug.com/40397980)."
               },
               "chrome_android": {
                 "version_added": "50"
@@ -762,7 +834,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -773,9 +846,12 @@
         },
         "inverted-colors": {
           "__compat": {
-            "description": "<code>inverted-colors</code> media feature",
+            "description": "`inverted-colors` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/inverted-colors",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#inverted",
+            "tags": [
+              "web-features:inverted-colors"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -806,7 +882,8 @@
                 "version_added": "10"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -818,6 +895,9 @@
         "media_features": {
           "__compat": {
             "description": "Media feature expressions",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -847,7 +927,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -859,6 +940,9 @@
         "media_query_values": {
           "__compat": {
             "description": "Media query value support",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "66"
@@ -880,7 +964,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -891,9 +976,12 @@
         },
         "monochrome": {
           "__compat": {
-            "description": "<code>monochrome</code> media feature",
+            "description": "`monochrome` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/monochrome",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#monochrome",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -923,7 +1011,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -935,6 +1024,9 @@
         "nested-queries": {
           "__compat": {
             "description": "Nested media queries",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "26"
@@ -962,7 +1054,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -973,8 +1066,11 @@
         },
         "or_syntax": {
           "__compat": {
-            "description": "<code>or</code> syntax from Media Queries Level 4",
+            "description": "`or` syntax from Media Queries Level 4",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/CSS_media_queries/Using_media_queries#testing_for_multiple_features_with_or",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -996,7 +1092,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1007,9 +1104,12 @@
         },
         "orientation": {
           "__compat": {
-            "description": "<code>orientation</code> media feature",
+            "description": "`orientation` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/orientation",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#orientation",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -1039,7 +1139,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1050,9 +1151,12 @@
         },
         "overflow-block": {
           "__compat": {
-            "description": "<code>overflow-block</code> media feature",
+            "description": "`overflow-block` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/overflow-block",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#mf-overflow-block",
+            "tags": [
+              "web-features:overflow"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113"
@@ -1074,7 +1178,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1085,9 +1190,12 @@
         },
         "overflow-inline": {
           "__compat": {
-            "description": "<code>overflow-inline</code> media feature",
+            "description": "`overflow-inline` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/overflow-inline",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#mf-overflow-inline",
+            "tags": [
+              "web-features:overflow"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113"
@@ -1109,7 +1217,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1120,9 +1229,12 @@
         },
         "pointer": {
           "__compat": {
-            "description": "<code>pointer</code> media feature",
+            "description": "`pointer` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/pointer",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#pointer",
+            "tags": [
+              "web-features:interaction"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -1152,7 +1264,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "41"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1163,7 +1276,7 @@
         },
         "prefers-color-scheme": {
           "__compat": {
-            "description": "<code>prefers-color-scheme</code> media feature",
+            "description": "`prefers-color-scheme` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/prefers-color-scheme",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#prefers-color-scheme",
             "tags": [
@@ -1196,7 +1309,8 @@
               "samsunginternet_android": {
                 "version_added": "14.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1206,7 +1320,10 @@
           },
           "no-preference": {
             "__compat": {
-              "description": "<code>no-preference</code> value",
+              "description": "`no-preference` value",
+              "tags": [
+                "web-features:prefers-color-scheme"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "76",
@@ -1231,15 +1348,18 @@
                   "version_added": "54"
                 },
                 "safari": {
-                  "version_added": "12.1"
+                  "version_added": "12.1",
+                  "version_removed": "15"
                 },
                 "safari_ios": {
-                  "version_added": "13"
+                  "version_added": "13",
+                  "version_removed": "15"
                 },
                 "samsunginternet_android": {
                   "version_added": "14.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1250,11 +1370,21 @@
           },
           "respects-inherited-scheme": {
             "__compat": {
-              "description": "Respects <code>color-scheme</code> inherited from parent",
+              "description": "Respects `color-scheme` inherited from parent",
+              "tags": [
+                "web-features:prefers-color-scheme"
+              ],
               "support": {
-                "chrome": {
-                  "version_added": false
-                },
+                "chrome": [
+                  {
+                    "version_added": "129"
+                  },
+                  {
+                    "version_added": "111",
+                    "partial_implementation": true,
+                    "notes": "Only supports SVG images, not iframes."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "edge": "mirror",
                 "firefox": {
@@ -1272,7 +1402,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1284,9 +1415,12 @@
         },
         "prefers-contrast": {
           "__compat": {
-            "description": "<code>prefers-contrast</code> media feature",
+            "description": "`prefers-contrast` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/prefers-contrast",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#prefers-contrast",
+            "tags": [
+              "web-features:prefers-contrast"
+            ],
             "support": {
               "chrome": {
                 "version_added": "96"
@@ -1310,7 +1444,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1321,9 +1456,12 @@
         },
         "prefers-reduced-data": {
           "__compat": {
-            "description": "<code>prefers-reduced-data</code> media feature",
+            "description": "`prefers-reduced-data` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/prefers-reduced-data",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#prefers-reduced-data",
+            "tags": [
+              "web-features:prefers-reduced-data"
+            ],
             "support": {
               "chrome": {
                 "version_added": "85",
@@ -1334,7 +1472,7 @@
                     "value_to_set": "Enabled"
                   }
                 ],
-                "impl_url": "https://crbug.com/1051189"
+                "impl_url": "https://crbug.com/40118365"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1355,8 +1493,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/1051189"
-              }
+                "impl_url": "https://crbug.com/40118365"
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1367,9 +1506,12 @@
         },
         "prefers-reduced-motion": {
           "__compat": {
-            "description": "<code>prefers-reduced-motion</code> media feature",
+            "description": "`prefers-reduced-motion` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/prefers-reduced-motion",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#prefers-reduced-motion",
+            "tags": [
+              "web-features:prefers-reduced-motion"
+            ],
             "support": {
               "chrome": {
                 "version_added": "74"
@@ -1393,7 +1535,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1404,9 +1547,12 @@
         },
         "prefers-reduced-transparency": {
           "__compat": {
-            "description": "<code>prefers-reduced-transparency</code> media feature",
+            "description": "`prefers-reduced-transparency` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/prefers-reduced-transparency",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#prefers-reduced-transparency",
+            "tags": [
+              "web-features:prefers-reduced-transparency"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -1437,7 +1583,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1466,7 +1613,7 @@
                 {
                   "version_added": "63",
                   "partial_implementation": true,
-                  "notes": "Only supports range notations where the feature name comes before any value <code>(width &#62; 500px)</code>"
+                  "notes": "Only supports range notations where the feature name comes before any value `(width &#62; 500px)`"
                 }
               ],
               "firefox_android": "mirror",
@@ -1481,7 +1628,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1492,9 +1640,12 @@
         },
         "resolution": {
           "__compat": {
-            "description": "<code>resolution</code> media feature",
+            "description": "`resolution` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/resolution",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#resolution",
+            "tags": [
+              "web-features:resolution"
+            ],
             "support": {
               "chrome": {
                 "version_added": "29"
@@ -1510,7 +1661,7 @@
                 {
                   "version_added": "3.5",
                   "partial_implementation": true,
-                  "notes": "Supports <a href='https://developer.mozilla.org/docs/Web/CSS/integer'><code>&lt;integer&gt;</code></a> values only."
+                  "notes": "Supports [`&lt;integer&gt;`](https://developer.mozilla.org/docs/Web/CSS/integer) values only."
                 }
               ],
               "firefox_android": "mirror",
@@ -1541,7 +1692,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1552,9 +1704,12 @@
         },
         "scripting": {
           "__compat": {
-            "description": "<code>scripting</code> media feature",
+            "description": "`scripting` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/scripting",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#scripting",
+            "tags": [
+              "web-features:scripting"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -1576,7 +1731,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1587,9 +1743,12 @@
         },
         "update": {
           "__compat": {
-            "description": "<code>update</code> media feature",
+            "description": "`update` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/update",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#update",
+            "tags": [
+              "web-features:update"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113"
@@ -1611,7 +1770,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1622,9 +1782,12 @@
         },
         "video-dynamic-range": {
           "__compat": {
-            "description": "<code>video-dynamic-range</code> media feature",
+            "description": "`video-dynamic-range` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/video-dynamic-range",
             "spec_url": "https://drafts.csswg.org/mediaqueries-5/#video-dynamic-range",
+            "tags": [
+              "web-features:video-dynamic-range"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98",
@@ -1653,7 +1816,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1664,9 +1828,12 @@
         },
         "width": {
           "__compat": {
-            "description": "<code>width</code> media feature",
+            "description": "`width` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/width",
             "spec_url": "https://drafts.csswg.org/mediaqueries/#width",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1698,7 +1865,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1709,7 +1877,7 @@
         },
         "-moz-device-pixel-ratio": {
           "__compat": {
-            "description": "<code>-moz-device-pixel-ratio</code> media feature",
+            "description": "`-moz-device-pixel-ratio` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/-moz-device-pixel-ratio",
             "support": {
               "chrome": {
@@ -1732,7 +1900,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1743,7 +1912,7 @@
         },
         "-webkit-animation": {
           "__compat": {
-            "description": "<code>-webkit-animation</code> media feature",
+            "description": "`-webkit-animation` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/-webkit-animation",
             "support": {
               "chrome": {
@@ -1770,7 +1939,8 @@
               "webview_android": {
                 "version_added": "2",
                 "version_removed": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1781,9 +1951,12 @@
         },
         "-webkit-device-pixel-ratio": {
           "__compat": {
-            "description": "<code>-webkit-device-pixel-ratio</code> media feature",
+            "description": "`-webkit-device-pixel-ratio` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/-webkit-device-pixel-ratio",
             "spec_url": "https://compat.spec.whatwg.org/#css-media-queries-webkit-device-pixel-ratio",
+            "tags": [
+              "web-features:resolution-compat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1794,7 +1967,7 @@
               },
               "firefox": {
                 "version_added": "63",
-                "notes": "Implemented as an alias for <code>-moz-device-pixel-ratio</code>."
+                "notes": "Implemented as an alias for `-moz-device-pixel-ratio`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1812,7 +1985,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1823,9 +1997,12 @@
         },
         "-webkit-max-device-pixel-ratio": {
           "__compat": {
-            "description": "<code>-webkit-max-device-pixel-ratio</code> media feature",
+            "description": "`-webkit-max-device-pixel-ratio` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/-webkit-device-pixel-ratio",
             "spec_url": "https://compat.spec.whatwg.org/#css-media-queries-webkit-device-pixel-ratio",
+            "tags": [
+              "web-features:resolution-compat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1836,7 +2013,7 @@
               },
               "firefox": {
                 "version_added": "63",
-                "notes": "Implemented as an alias for <code>max--moz-device-pixel-ratio</code>."
+                "notes": "Implemented as an alias for `max--moz-device-pixel-ratio`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1854,7 +2031,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1865,9 +2043,12 @@
         },
         "-webkit-min-device-pixel-ratio": {
           "__compat": {
-            "description": "<code>-webkit-min-device-pixel-ratio</code> media feature",
+            "description": "`-webkit-min-device-pixel-ratio` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/-webkit-device-pixel-ratio",
             "spec_url": "https://compat.spec.whatwg.org/#css-media-queries-webkit-device-pixel-ratio",
+            "tags": [
+              "web-features:resolution-compat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1878,7 +2059,7 @@
               },
               "firefox": {
                 "version_added": "63",
-                "notes": "Implemented as an alias for <code>min--moz-device-pixel-ratio</code>."
+                "notes": "Implemented as an alias for `min--moz-device-pixel-ratio`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1896,7 +2077,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1907,7 +2089,7 @@
         },
         "-webkit-transform-2d": {
           "__compat": {
-            "description": "<code>-webkit-transform-2d</code> media feature",
+            "description": "`-webkit-transform-2d` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/-webkit-transform-2d",
             "support": {
               "chrome": {
@@ -1934,7 +2116,8 @@
               "webview_android": {
                 "version_added": "2",
                 "version_removed": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1945,9 +2128,12 @@
         },
         "-webkit-transform-3d": {
           "__compat": {
-            "description": "<code>-webkit-transform-3d</code> media feature",
+            "description": "`-webkit-transform-3d` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/-webkit-transform-3d",
             "spec_url": "https://compat.spec.whatwg.org/#css-media-queries-webkit-transform-3d",
+            "tags": [
+              "web-features:supports-compat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -1971,7 +2157,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1982,7 +2169,7 @@
         },
         "-webkit-transition": {
           "__compat": {
-            "description": "<code>-webkit-transition</code> media feature",
+            "description": "`-webkit-transition` media feature",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media/-webkit-transition",
             "support": {
               "chrome": {
@@ -2009,7 +2196,8 @@
               "webview_android": {
                 "version_added": "2",
                 "version_removed": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/at-rules/namespace.json b/css/at-rules/namespace.json
index a5ff838eeb9285..3fd2f1636a2aef 100644
--- a/css/at-rules/namespace.json
+++ b/css/at-rules/namespace.json
@@ -3,9 +3,12 @@
     "at-rules": {
       "namespace": {
         "__compat": {
-          "description": "<code>@namespace</code>",
+          "description": "`@namespace`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@namespace",
           "spec_url": "https://drafts.csswg.org/css-namespaces/#declaration",
+          "tags": [
+            "web-features:namespace"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -33,7 +36,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/at-rules/page.json b/css/at-rules/page.json
index 3232075618fa4b..4e30e031daee3d 100644
--- a/css/at-rules/page.json
+++ b/css/at-rules/page.json
@@ -3,12 +3,15 @@
     "at-rules": {
       "page": {
         "__compat": {
-          "description": "<code>@page</code>",
+          "description": "`@page`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@page",
           "spec_url": [
             "https://drafts.csswg.org/css-page/#at-page-rule",
             "https://drafts.csswg.org/css-logical/#page"
           ],
+          "tags": [
+            "web-features:page-setup"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -30,13 +33,15 @@
             },
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "18.2",
+              "impl_url": "https://webkit.org/b/15548"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,11 +49,350 @@
             "deprecated": false
           }
         },
+        "bottom-center": {
+          "__compat": {
+            "description": "`@bottom-center` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-bottom-center",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "bottom-left": {
+          "__compat": {
+            "description": "`@bottom-left` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-bottom-left",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "bottom-left-corner": {
+          "__compat": {
+            "description": "`@bottom-left-corner` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-bottom-left-corner",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "bottom-right": {
+          "__compat": {
+            "description": "`@bottom-right` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-bottom-right",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "bottom-right-corner": {
+          "__compat": {
+            "description": "`@bottom-right-corner` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-bottom-right-corner",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "left-bottom": {
+          "__compat": {
+            "description": "`@left-bottom` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-left-bottom",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "left-middle": {
+          "__compat": {
+            "description": "`@left-middle` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-left-middle",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "left-top": {
+          "__compat": {
+            "description": "`@left-top` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-left-top",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "page-orientation": {
           "__compat": {
-            "description": "<code>page-orientation</code> descriptor",
+            "description": "`page-orientation` descriptor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@page/page-orientation",
             "spec_url": "https://drafts.csswg.org/css-page/#page-orientation-prop",
+            "tags": [
+              "web-features:page-orientation"
+            ],
             "support": {
               "chrome": {
                 "version_added": "85"
@@ -56,7 +400,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "preview"
+                "version_added": "122"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -70,7 +414,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -79,11 +424,140 @@
             }
           }
         },
+        "right-bottom": {
+          "__compat": {
+            "description": "`@right-bottom` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-right-bottom",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "right-middle": {
+          "__compat": {
+            "description": "`@right-middle` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-right-middle",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "right-top": {
+          "__compat": {
+            "description": "`@right-top` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-right-top",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "size": {
           "__compat": {
-            "description": "<code>size</code> descriptor",
+            "description": "`size` descriptor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@page/size",
             "spec_url": "https://drafts.csswg.org/css-page/#page-size-prop",
+            "tags": [
+              "web-features:page-setup"
+            ],
             "support": {
               "chrome": {
                 "version_added": "15"
@@ -101,7 +575,7 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": {
@@ -109,7 +583,8 @@
               },
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -119,9 +594,12 @@
           },
           "jis-b4": {
             "__compat": {
-              "description": "<code>jis-b4</code> page size",
+              "description": "`jis-b4` page size",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@page/size",
               "spec_url": "https://drafts.csswg.org/css-page/#page-size-prop",
+              "tags": [
+                "web-features:page-setup"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "83"
@@ -139,11 +617,12 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": false
+                  "version_added": "18.2"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -154,9 +633,12 @@
           },
           "jis-b5": {
             "__compat": {
-              "description": "<code>jis-b5</code> page size",
+              "description": "`jis-b5` page size",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@page/size",
               "spec_url": "https://drafts.csswg.org/css-page/#page-size-prop",
+              "tags": [
+                "web-features:page-setup"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "83"
@@ -174,11 +656,12 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": false
+                  "version_added": "18.2"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -187,6 +670,216 @@
               }
             }
           }
+        },
+        "top-center": {
+          "__compat": {
+            "description": "`@top-center` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-top-center",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "top-left": {
+          "__compat": {
+            "description": "`@top-left` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-top-left",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "top-left-corner": {
+          "__compat": {
+            "description": "`@top-left-corner` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-top-left-corner",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "top-right": {
+          "__compat": {
+            "description": "`@top-right` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-top-right",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "top-right-corner": {
+          "__compat": {
+            "description": "`@top-right-corner` page-margin box",
+            "spec_url": "https://drafts.csswg.org/css-page-3/#at-ruledef-top-right-corner",
+            "tags": [
+              "web-features:page-setup"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/css/at-rules/position-try.json b/css/at-rules/position-try.json
index d375bce9012203..30c93aa569dd28 100644
--- a/css/at-rules/position-try.json
+++ b/css/at-rules/position-try.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "position-try": {
         "__compat": {
-          "description": "<code>@position-try</code>",
+          "description": "`@position-try`",
           "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#at-ruledef-position-try",
           "tags": [
             "web-features:anchor-positioning"
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/at-rules/property.json b/css/at-rules/property.json
index 12167dc387a8ff..c71b2ab04373f0 100644
--- a/css/at-rules/property.json
+++ b/css/at-rules/property.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "property": {
         "__compat": {
-          "description": "<code>@property</code>",
+          "description": "`@property`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@property",
           "spec_url": "https://drafts.css-houdini.org/css-properties-values-api/#at-property-rule",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,7 +41,7 @@
         },
         "inherits": {
           "__compat": {
-            "description": "<code>inherits</code> descriptor",
+            "description": "`inherits` descriptor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@property/inherits",
             "spec_url": "https://drafts.css-houdini.org/css-properties-values-api/#inherits-descriptor",
             "tags": [
@@ -67,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,7 +80,7 @@
         },
         "initial-value": {
           "__compat": {
-            "description": "<code>initial-value</code> descriptor",
+            "description": "`initial-value` descriptor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@property/initial-value",
             "spec_url": "https://drafts.css-houdini.org/css-properties-values-api/#initial-value-descriptor",
             "tags": [
@@ -105,7 +107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -116,7 +119,7 @@
         },
         "syntax": {
           "__compat": {
-            "description": "<code>syntax</code> descriptor",
+            "description": "`syntax` descriptor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@property/syntax",
             "spec_url": "https://drafts.css-houdini.org/css-properties-values-api/#the-syntax-descriptor",
             "tags": [
@@ -143,7 +146,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/at-rules/scope.json b/css/at-rules/scope.json
index c29583de1dd8ed..7bdd6cda6c3855 100644
--- a/css/at-rules/scope.json
+++ b/css/at-rules/scope.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "scope": {
         "__compat": {
-          "description": "<code>@scope</code>",
+          "description": "`@scope`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@scope",
           "spec_url": "https://drafts.csswg.org/css-cascade-6/#scoped-styles",
           "tags": [
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/at-rules/starting-style.json b/css/at-rules/starting-style.json
index 94edc0e4b9064d..42a454154022f4 100644
--- a/css/at-rules/starting-style.json
+++ b/css/at-rules/starting-style.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "starting-style": {
         "__compat": {
-          "description": "<code>@starting-style</code>",
+          "description": "`@starting-style`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@starting-style",
           "spec_url": "https://drafts.csswg.org/css-transitions-2/#defining-before-change-style",
           "tags": [
@@ -19,7 +19,7 @@
               "version_added": "129",
               "impl_url": "https://bugzil.la/1834877",
               "partial_implementation": true,
-              "notes": "Does not yet support animating from <code>display: none</code>"
+              "notes": "Does not yet support animating from `display: none`"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/at-rules/supports.json b/css/at-rules/supports.json
index 9f8cbfc87d634d..84399cad370586 100644
--- a/css/at-rules/supports.json
+++ b/css/at-rules/supports.json
@@ -3,7 +3,7 @@
     "at-rules": {
       "supports": {
         "__compat": {
-          "description": "<code>@supports</code>",
+          "description": "`@supports`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@supports",
           "spec_url": [
             "https://drafts.csswg.org/css-conditional-4/#at-supports-ext",
@@ -39,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,7 +50,7 @@
         },
         "font-format": {
           "__compat": {
-            "description": "<code>font-format()</code>",
+            "description": "`font-format()`",
             "tags": [
               "web-features:supports"
             ],
@@ -74,7 +75,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -85,7 +87,7 @@
         },
         "font-tech": {
           "__compat": {
-            "description": "<code>font-tech()</code>",
+            "description": "`font-tech()`",
             "tags": [
               "web-features:supports"
             ],
@@ -110,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -121,7 +124,7 @@
         },
         "selector": {
           "__compat": {
-            "description": "<code>selector()</code>",
+            "description": "`selector()`",
             "tags": [
               "web-features:supports"
             ],
@@ -142,14 +145,15 @@
               "opera": "mirror",
               "opera_android": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/979041"
+                "impl_url": "https://crbug.com/40633900"
               },
               "safari": {
                 "version_added": "14.1"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/at-rules/view-transition.json b/css/at-rules/view-transition.json
index 7355a08c212d4c..3b0da8267fcd24 100644
--- a/css/at-rules/view-transition.json
+++ b/css/at-rules/view-transition.json
@@ -3,17 +3,20 @@
     "at-rules": {
       "view-transition": {
         "__compat": {
-          "description": "<code>@view-transition</code>",
+          "description": "`@view-transition`",
           "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#view-transition-rule",
+          "tags": [
+            "web-features:cross-document-view-transitions"
+          ],
           "support": {
             "chrome": {
-              "version_added": "126",
-              "impl_url": "https://crbug.com/1463966"
+              "version_added": "126"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1860854"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -23,11 +26,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "preview",
+              "impl_url": "https://webkit.org/b/278247"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-moz-float-edge.json b/css/properties/-moz-float-edge.json
index 7b1390de538a3b..31f6db3dbf2648 100644
--- a/css/properties/-moz-float-edge.json
+++ b/css/properties/-moz-float-edge.json
@@ -25,7 +25,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-moz-force-broken-image-icon.json b/css/properties/-moz-force-broken-image-icon.json
index 75e1770e44e93d..81b624e63950f7 100644
--- a/css/properties/-moz-force-broken-image-icon.json
+++ b/css/properties/-moz-force-broken-image-icon.json
@@ -25,7 +25,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-moz-image-region.json b/css/properties/-moz-image-region.json
index 62393fdeffd26a..cdce1c5306c574 100644
--- a/css/properties/-moz-image-region.json
+++ b/css/properties/-moz-image-region.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-moz-orient.json b/css/properties/-moz-orient.json
index c9c5efc926cf8a..371a8fddb070ce 100644
--- a/css/properties/-moz-orient.json
+++ b/css/properties/-moz-orient.json
@@ -25,7 +25,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -35,7 +36,7 @@
         },
         "block": {
           "__compat": {
-            "description": "<code>block</code> value",
+            "description": "`block` value",
             "support": {
               "chrome": {
                 "version_added": false
@@ -57,7 +58,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -68,7 +70,7 @@
         },
         "inline": {
           "__compat": {
-            "description": "<code>inline</code> value",
+            "description": "`inline` value",
             "support": {
               "chrome": {
                 "version_added": false
@@ -90,7 +92,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/-moz-user-focus.json b/css/properties/-moz-user-focus.json
index ed15111586a569..25d3784d4b7be2 100644
--- a/css/properties/-moz-user-focus.json
+++ b/css/properties/-moz-user-focus.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-moz-user-input.json b/css/properties/-moz-user-input.json
index a96e2349f3704a..daa8e05a9f4fa2 100644
--- a/css/properties/-moz-user-input.json
+++ b/css/properties/-moz-user-input.json
@@ -25,7 +25,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -88,7 +90,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/-webkit-app-region.json b/css/properties/-webkit-app-region.json
index 68ce25a016e721..839e13f6358af7 100644
--- a/css/properties/-webkit-app-region.json
+++ b/css/properties/-webkit-app-region.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-border-before.json b/css/properties/-webkit-border-before.json
index 9609f4530e8c1d..60b23c280194f9 100644
--- a/css/properties/-webkit-border-before.json
+++ b/css/properties/-webkit-border-before.json
@@ -29,7 +29,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-border-horizontal-spacing.json b/css/properties/-webkit-border-horizontal-spacing.json
index b01d76f31999d1..c64c4708684647 100644
--- a/css/properties/-webkit-border-horizontal-spacing.json
+++ b/css/properties/-webkit-border-horizontal-spacing.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-border-vertical-spacing.json b/css/properties/-webkit-border-vertical-spacing.json
index 0cb530dead0c3e..ba4efce29c6718 100644
--- a/css/properties/-webkit-border-vertical-spacing.json
+++ b/css/properties/-webkit-border-vertical-spacing.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-box-reflect.json b/css/properties/-webkit-box-reflect.json
index 6ae45a80def974..3e5e36e632fda9 100644
--- a/css/properties/-webkit-box-reflect.json
+++ b/css/properties/-webkit-box-reflect.json
@@ -27,7 +27,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-column-axis.json b/css/properties/-webkit-column-axis.json
index 14046d09b66c3c..61d76574049c6e 100644
--- a/css/properties/-webkit-column-axis.json
+++ b/css/properties/-webkit-column-axis.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-column-break-after.json b/css/properties/-webkit-column-break-after.json
index bc33d3f42d3048..4ebf236cb5ba19 100644
--- a/css/properties/-webkit-column-break-after.json
+++ b/css/properties/-webkit-column-break-after.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-column-break-before.json b/css/properties/-webkit-column-break-before.json
index 74549570ee6b9a..64af0a4660e0e1 100644
--- a/css/properties/-webkit-column-break-before.json
+++ b/css/properties/-webkit-column-break-before.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-column-break-inside.json b/css/properties/-webkit-column-break-inside.json
index 9757891ccba603..dba4535438b6a0 100644
--- a/css/properties/-webkit-column-break-inside.json
+++ b/css/properties/-webkit-column-break-inside.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-column-progression.json b/css/properties/-webkit-column-progression.json
index 2f97563dfd1361..5f7082bcdfcda7 100644
--- a/css/properties/-webkit-column-progression.json
+++ b/css/properties/-webkit-column-progression.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-cursor-visibility.json b/css/properties/-webkit-cursor-visibility.json
index 7726b850adb902..45c61f3803dd8d 100644
--- a/css/properties/-webkit-cursor-visibility.json
+++ b/css/properties/-webkit-cursor-visibility.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-hyphenate-limit-after.json b/css/properties/-webkit-hyphenate-limit-after.json
index c41940a439c5fc..b1f574ab02433c 100644
--- a/css/properties/-webkit-hyphenate-limit-after.json
+++ b/css/properties/-webkit-hyphenate-limit-after.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-hyphenate-limit-before.json b/css/properties/-webkit-hyphenate-limit-before.json
index 4a78212aaf42af..78ee222bc34090 100644
--- a/css/properties/-webkit-hyphenate-limit-before.json
+++ b/css/properties/-webkit-hyphenate-limit-before.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-hyphenate-limit-lines.json b/css/properties/-webkit-hyphenate-limit-lines.json
index 62862ce8e560bd..d23f5e690393fe 100644
--- a/css/properties/-webkit-hyphenate-limit-lines.json
+++ b/css/properties/-webkit-hyphenate-limit-lines.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-initial-letter.json b/css/properties/-webkit-initial-letter.json
deleted file mode 100644
index a144252c1c975b..00000000000000
--- a/css/properties/-webkit-initial-letter.json
+++ /dev/null
@@ -1,38 +0,0 @@
-{
-  "css": {
-    "properties": {
-      "-webkit-initial-letter": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": false
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "≤13.1"
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": false,
-            "deprecated": false
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/css/properties/-webkit-line-align.json b/css/properties/-webkit-line-align.json
index 37be1aaa5398bb..254f0d02c9df58 100644
--- a/css/properties/-webkit-line-align.json
+++ b/css/properties/-webkit-line-align.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-line-box-contain.json b/css/properties/-webkit-line-box-contain.json
index 2edc99d3765db9..9fbd97249ea490 100644
--- a/css/properties/-webkit-line-box-contain.json
+++ b/css/properties/-webkit-line-box-contain.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-line-grid.json b/css/properties/-webkit-line-grid.json
index ca49f55365f39d..111725da544f33 100644
--- a/css/properties/-webkit-line-grid.json
+++ b/css/properties/-webkit-line-grid.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-line-snap.json b/css/properties/-webkit-line-snap.json
index efafb42a443bb8..2bb7dfe77616f9 100644
--- a/css/properties/-webkit-line-snap.json
+++ b/css/properties/-webkit-line-snap.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-locale.json b/css/properties/-webkit-locale.json
index 31f29e2d5f5e3f..45869c79d82934 100644
--- a/css/properties/-webkit-locale.json
+++ b/css/properties/-webkit-locale.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-logical-height.json b/css/properties/-webkit-logical-height.json
index 4ccd7ca57b3660..42b90cc7300474 100644
--- a/css/properties/-webkit-logical-height.json
+++ b/css/properties/-webkit-logical-height.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-logical-width.json b/css/properties/-webkit-logical-width.json
index 982200cb9f782f..4aa89f72080692 100644
--- a/css/properties/-webkit-logical-width.json
+++ b/css/properties/-webkit-logical-width.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-margin-after.json b/css/properties/-webkit-margin-after.json
index 1b344a86210744..0d5815075d2310 100644
--- a/css/properties/-webkit-margin-after.json
+++ b/css/properties/-webkit-margin-after.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-margin-before.json b/css/properties/-webkit-margin-before.json
index 2a8e140a7bbfe1..12e0ec78c6638f 100644
--- a/css/properties/-webkit-margin-before.json
+++ b/css/properties/-webkit-margin-before.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-mask-box-image-outset.json b/css/properties/-webkit-mask-box-image-outset.json
deleted file mode 100644
index feba426d30846c..00000000000000
--- a/css/properties/-webkit-mask-box-image-outset.json
+++ /dev/null
@@ -1,38 +0,0 @@
-{
-  "css": {
-    "properties": {
-      "-webkit-mask-box-image-outset": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "≤80"
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "≤13.1"
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/css/properties/-webkit-mask-box-image-repeat.json b/css/properties/-webkit-mask-box-image-repeat.json
deleted file mode 100644
index 7661e72de03bde..00000000000000
--- a/css/properties/-webkit-mask-box-image-repeat.json
+++ /dev/null
@@ -1,38 +0,0 @@
-{
-  "css": {
-    "properties": {
-      "-webkit-mask-box-image-repeat": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "≤80"
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "≤13.1"
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/css/properties/-webkit-mask-box-image-width.json b/css/properties/-webkit-mask-box-image-width.json
deleted file mode 100644
index 747ee2f45542b3..00000000000000
--- a/css/properties/-webkit-mask-box-image-width.json
+++ /dev/null
@@ -1,38 +0,0 @@
-{
-  "css": {
-    "properties": {
-      "-webkit-mask-box-image-width": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "≤80"
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "≤13.1"
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/css/properties/-webkit-mask-box-image.json b/css/properties/-webkit-mask-box-image.json
index e0fdb5198230c5..f463d2cbd2d3bd 100644
--- a/css/properties/-webkit-mask-box-image.json
+++ b/css/properties/-webkit-mask-box-image.json
@@ -29,7 +29,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-mask-composite.json b/css/properties/-webkit-mask-composite.json
index 06fccea9489ee5..c7a4e83058d0a8 100644
--- a/css/properties/-webkit-mask-composite.json
+++ b/css/properties/-webkit-mask-composite.json
@@ -29,7 +29,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-mask-position-x.json b/css/properties/-webkit-mask-position-x.json
index 585182b49cef2e..4aab5f64111f44 100644
--- a/css/properties/-webkit-mask-position-x.json
+++ b/css/properties/-webkit-mask-position-x.json
@@ -29,7 +29,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-mask-position-y.json b/css/properties/-webkit-mask-position-y.json
index efdac8445acaca..cd6d5be92a5e1c 100644
--- a/css/properties/-webkit-mask-position-y.json
+++ b/css/properties/-webkit-mask-position-y.json
@@ -29,7 +29,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-mask-repeat-x.json b/css/properties/-webkit-mask-repeat-x.json
index c3f2d347aa634a..cbe70515b5808b 100644
--- a/css/properties/-webkit-mask-repeat-x.json
+++ b/css/properties/-webkit-mask-repeat-x.json
@@ -30,7 +30,8 @@
               "version_removed": "15"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-mask-repeat-y.json b/css/properties/-webkit-mask-repeat-y.json
index b612c1de8eb2d6..6ded41dee5f13b 100644
--- a/css/properties/-webkit-mask-repeat-y.json
+++ b/css/properties/-webkit-mask-repeat-y.json
@@ -30,7 +30,8 @@
               "version_removed": "15"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-mask-source-type.json b/css/properties/-webkit-mask-source-type.json
index bf81661c389d53..01a9263493d376 100644
--- a/css/properties/-webkit-mask-source-type.json
+++ b/css/properties/-webkit-mask-source-type.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-max-logical-height.json b/css/properties/-webkit-max-logical-height.json
index 4597245e5f8903..67a276329fe106 100644
--- a/css/properties/-webkit-max-logical-height.json
+++ b/css/properties/-webkit-max-logical-height.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-max-logical-width.json b/css/properties/-webkit-max-logical-width.json
index c1d3adfc9e9b5e..c2eaf3dd4c3668 100644
--- a/css/properties/-webkit-max-logical-width.json
+++ b/css/properties/-webkit-max-logical-width.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-min-logical-height.json b/css/properties/-webkit-min-logical-height.json
index f3361f1a37886d..3a1114b3629465 100644
--- a/css/properties/-webkit-min-logical-height.json
+++ b/css/properties/-webkit-min-logical-height.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-min-logical-width.json b/css/properties/-webkit-min-logical-width.json
index 6775b5ab209745..a426563b4468e7 100644
--- a/css/properties/-webkit-min-logical-width.json
+++ b/css/properties/-webkit-min-logical-width.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-nbsp-mode.json b/css/properties/-webkit-nbsp-mode.json
index 2380ed98f20423..7acc14f55d0836 100644
--- a/css/properties/-webkit-nbsp-mode.json
+++ b/css/properties/-webkit-nbsp-mode.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-perspective-origin-x.json b/css/properties/-webkit-perspective-origin-x.json
index 1b90e635c63fb1..87162fe49cdf4a 100644
--- a/css/properties/-webkit-perspective-origin-x.json
+++ b/css/properties/-webkit-perspective-origin-x.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-perspective-origin-y.json b/css/properties/-webkit-perspective-origin-y.json
index 978ce33ac1e0c8..a815b66de0216a 100644
--- a/css/properties/-webkit-perspective-origin-y.json
+++ b/css/properties/-webkit-perspective-origin-y.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-rtl-ordering.json b/css/properties/-webkit-rtl-ordering.json
index d43643e69db565..18f77ba1d58d04 100644
--- a/css/properties/-webkit-rtl-ordering.json
+++ b/css/properties/-webkit-rtl-ordering.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-tap-highlight-color.json b/css/properties/-webkit-tap-highlight-color.json
index 660992fdccef26..666e7560206d18 100644
--- a/css/properties/-webkit-tap-highlight-color.json
+++ b/css/properties/-webkit-tap-highlight-color.json
@@ -29,7 +29,8 @@
               "version_added": "4"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-text-combine.json b/css/properties/-webkit-text-combine.json
index 943fa1bf6a562f..96d9d5f0793227 100644
--- a/css/properties/-webkit-text-combine.json
+++ b/css/properties/-webkit-text-combine.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-text-decoration-skip.json b/css/properties/-webkit-text-decoration-skip.json
deleted file mode 100644
index f688dbd8eaec6f..00000000000000
--- a/css/properties/-webkit-text-decoration-skip.json
+++ /dev/null
@@ -1,38 +0,0 @@
-{
-  "css": {
-    "properties": {
-      "-webkit-text-decoration-skip": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": false
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "≤13.1"
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": false,
-            "deprecated": false
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/css/properties/-webkit-text-decorations-in-effect.json b/css/properties/-webkit-text-decorations-in-effect.json
index f7afa2034bd991..2d58e179ed793d 100644
--- a/css/properties/-webkit-text-decorations-in-effect.json
+++ b/css/properties/-webkit-text-decorations-in-effect.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-text-fill-color.json b/css/properties/-webkit-text-fill-color.json
index 97062c37a9d7e3..a793efeb784cf3 100644
--- a/css/properties/-webkit-text-fill-color.json
+++ b/css/properties/-webkit-text-fill-color.json
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-text-security.json b/css/properties/-webkit-text-security.json
index 5040c5c71a4d72..736de6196f4535 100644
--- a/css/properties/-webkit-text-security.json
+++ b/css/properties/-webkit-text-security.json
@@ -27,7 +27,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-text-stroke-color.json b/css/properties/-webkit-text-stroke-color.json
index 6248a397d76e21..244beb03ce6582 100644
--- a/css/properties/-webkit-text-stroke-color.json
+++ b/css/properties/-webkit-text-stroke-color.json
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-text-stroke-width.json b/css/properties/-webkit-text-stroke-width.json
index 608efe2169108a..56b172ab8afcb5 100644
--- a/css/properties/-webkit-text-stroke-width.json
+++ b/css/properties/-webkit-text-stroke-width.json
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "38"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-text-stroke.json b/css/properties/-webkit-text-stroke.json
index 0552069fdc24e1..7aee1becea733c 100644
--- a/css/properties/-webkit-text-stroke.json
+++ b/css/properties/-webkit-text-stroke.json
@@ -30,7 +30,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-text-zoom.json b/css/properties/-webkit-text-zoom.json
index f7df2418a0ad54..25886ee01e547d 100644
--- a/css/properties/-webkit-text-zoom.json
+++ b/css/properties/-webkit-text-zoom.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/-webkit-touch-callout.json b/css/properties/-webkit-touch-callout.json
index 1aaeaeac34e480..5251d908c8778a 100644
--- a/css/properties/-webkit-touch-callout.json
+++ b/css/properties/-webkit-touch-callout.json
@@ -27,7 +27,8 @@
               "version_added": "2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-transform-origin-x.json b/css/properties/-webkit-transform-origin-x.json
index 580d640efc2386..3ca1ac633f5aad 100644
--- a/css/properties/-webkit-transform-origin-x.json
+++ b/css/properties/-webkit-transform-origin-x.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-transform-origin-y.json b/css/properties/-webkit-transform-origin-y.json
index 1391d31c22f6eb..b9747112c7c47a 100644
--- a/css/properties/-webkit-transform-origin-y.json
+++ b/css/properties/-webkit-transform-origin-y.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-transform-origin-z.json b/css/properties/-webkit-transform-origin-z.json
index c97f219ef9596d..345381d3150f69 100644
--- a/css/properties/-webkit-transform-origin-z.json
+++ b/css/properties/-webkit-transform-origin-z.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-user-drag.json b/css/properties/-webkit-user-drag.json
index 0ddc5e626aed83..709cc4a09191f0 100644
--- a/css/properties/-webkit-user-drag.json
+++ b/css/properties/-webkit-user-drag.json
@@ -24,7 +24,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/-webkit-user-modify.json b/css/properties/-webkit-user-modify.json
deleted file mode 100644
index b5e174ee417186..00000000000000
--- a/css/properties/-webkit-user-modify.json
+++ /dev/null
@@ -1,38 +0,0 @@
-{
-  "css": {
-    "properties": {
-      "-webkit-user-modify": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "≤80"
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "≤13.1"
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": false
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/css/properties/accent-color.json b/css/properties/accent-color.json
index 9cec1671b4c855..82d7cd1684ab84 100644
--- a/css/properties/accent-color.json
+++ b/css/properties/accent-color.json
@@ -25,11 +25,14 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "15.4"
+              "version_added": "15.4",
+              "partial_implementation": true,
+              "notes": "Safari does not adjust the color of glyphs (such as checkmarks) on form controls to maintain contrast. See [bug 244233](https://webkit.org/b/244233)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -63,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/align-content.json b/css/properties/align-content.json
index f4545fd1452fff..acac3279809729 100644
--- a/css/properties/align-content.json
+++ b/css/properties/align-content.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-align/#align-justify-content",
             "https://drafts.csswg.org/css-flexbox/#align-content-property"
           ],
+          "tags": [
+            "web-features:flexbox"
+          ],
           "support": {
             "chrome": [
               {
@@ -55,7 +58,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -67,6 +71,9 @@
           "__compat": {
             "description": "Supported in Block Layout",
             "spec_url": "https://drafts.csswg.org/css-align/#align-justify-content",
+            "tags": [
+              "web-features:align-content-block"
+            ],
             "support": {
               "chrome": {
                 "version_added": "123"
@@ -88,7 +95,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -130,7 +138,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,6 +149,9 @@
           },
           "baseline": {
             "__compat": {
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "57"
@@ -163,7 +175,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -174,7 +187,10 @@
           },
           "first_baseline": {
             "__compat": {
-              "description": "<code>first baseline</code>",
+              "description": "`first baseline`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "59"
@@ -198,7 +214,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -209,7 +226,10 @@
           },
           "last_baseline": {
             "__compat": {
-              "description": "<code>last baseline</code>",
+              "description": "`last baseline`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false,
@@ -234,7 +254,7 @@
                 "safari": {
                   "version_added": "11",
                   "partial_implementation": true,
-                  "notes": "This value is recognized, but has no effect. See <a href='https://webkit.org/b/235005'>bug 235005</a>."
+                  "notes": "This value is recognized, but has no effect. See [bug 235005](https://webkit.org/b/235005)."
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": {
@@ -242,7 +262,8 @@
                 },
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -253,7 +274,10 @@
           },
           "safe_unsafe": {
             "__compat": {
-              "description": "<code>safe</code> and <code>unsafe</code>",
+              "description": "`safe` and `unsafe`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "115",
@@ -272,11 +296,12 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": "18"
+                  "version_added": "17.6"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -287,6 +312,9 @@
           },
           "space-evenly": {
             "__compat": {
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "60"
@@ -308,7 +336,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -319,7 +348,10 @@
           },
           "start_end": {
             "__compat": {
-              "description": "<code>start</code> and <code>end</code>",
+              "description": "`start` and `end`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "93"
@@ -347,7 +379,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -382,7 +415,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -433,7 +467,8 @@
               },
               "webview_android": {
                 "version_added": "57"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -450,7 +485,7 @@
               "https://drafts.csswg.org/css-multicol/#the-multi-column-model"
             ],
             "tags": [
-              "web-features:multicol"
+              "web-features:multi-column"
             ],
             "support": {
               "chrome": {
@@ -473,7 +508,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/align-items.json b/css/properties/align-items.json
index 9f60d58ca617e8..18baec25abd8e2 100644
--- a/css/properties/align-items.json
+++ b/css/properties/align-items.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-align/#align-items-property",
             "https://drafts.csswg.org/css-flexbox/#align-items-property"
           ],
+          "tags": [
+            "web-features:flexbox"
+          ],
           "support": {
             "chrome": [
               {
@@ -55,7 +58,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,7 +95,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -133,7 +138,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "11",
-                "notes": "In Internet Explorer 10 and 11, if column flex items have <code>align-items: center;</code> set on them and their content is too large, then they will overflow the bounds of their container. See <a href='https://github.com/philipwalton/flexbugs#2-column-flex-items-set-to-align-itemscenter-overflow-their-container'>Flexbug #2</a>."
+                "notes": "In Internet Explorer 10 and 11, if column flex items have `align-items: center;` set on them and their content is too large, then they will overflow the bounds of their container. See [Flexbug #2](https://github.com/philipwalton/flexbugs#2-column-flex-items-set-to-align-itemscenter-overflow-their-container)."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -143,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -187,7 +193,8 @@
                 },
                 "webview_android": {
                   "version_added": "57"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -198,7 +205,10 @@
           },
           "first_baseline": {
             "__compat": {
-              "description": "<code>first baseline</code>",
+              "description": "`first baseline`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "59"
@@ -222,7 +232,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -233,7 +244,10 @@
           },
           "last_baseline": {
             "__compat": {
-              "description": "<code>last baseline</code>",
+              "description": "`last baseline`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "108"
@@ -255,7 +269,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -266,7 +281,10 @@
           },
           "safe_unsafe": {
             "__compat": {
-              "description": "<code>safe</code> and <code>unsafe</code>",
+              "description": "`safe` and `unsafe`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "115",
@@ -285,11 +303,12 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": "18"
+                  "version_added": "17.6"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -300,7 +319,10 @@
           },
           "start_end": {
             "__compat": {
-              "description": "<code>start</code> and <code>end</code>",
+              "description": "`start` and `end`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "93"
@@ -322,7 +344,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -373,7 +396,8 @@
               },
               "webview_android": {
                 "version_added": "57"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -383,7 +407,7 @@
           },
           "start_end": {
             "__compat": {
-              "description": "<code>start</code> and <code>end</code>",
+              "description": "`start` and `end`",
               "tags": [
                 "web-features:grid"
               ],
@@ -408,7 +432,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/css/properties/align-self.json b/css/properties/align-self.json
index 014cf740b38406..4f5e3c13b7d177 100644
--- a/css/properties/align-self.json
+++ b/css/properties/align-self.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-align/#align-self-property",
             "https://drafts.csswg.org/css-flexbox/#align-items-property"
           ],
+          "tags": [
+            "web-features:flexbox"
+          ],
           "support": {
             "chrome": [
               {
@@ -59,7 +62,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -95,7 +99,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -150,7 +155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -194,7 +200,8 @@
                 },
                 "webview_android": {
                   "version_added": "57"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -205,7 +212,10 @@
           },
           "first_baseline": {
             "__compat": {
-              "description": "<code>first baseline</code>",
+              "description": "`first baseline`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "59"
@@ -229,7 +239,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -240,7 +251,10 @@
           },
           "last_baseline": {
             "__compat": {
-              "description": "<code>last baseline</code>",
+              "description": "`last baseline`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "108"
@@ -262,7 +276,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -273,7 +288,10 @@
           },
           "safe_unsafe": {
             "__compat": {
-              "description": "<code>safe</code> and <code>unsafe</code>",
+              "description": "`safe` and `unsafe`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "115",
@@ -292,11 +310,12 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": "18"
+                  "version_added": "17.6"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -307,7 +326,10 @@
           },
           "start_end": {
             "__compat": {
-              "description": "<code>start</code> and <code>end</code>",
+              "description": "`start` and `end`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "93"
@@ -334,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -369,7 +392,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -407,7 +431,7 @@
                 "prefix": "-ms-",
                 "version_added": "10",
                 "partial_implementation": true,
-                "notes": "Internet Explorer 10 and 11 have the property <code>-ms-grid-row-align</code>, which acts in a similar way to <code>align-self</code>."
+                "notes": "Internet Explorer 10 and 11 have the property `-ms-grid-row-align`, which acts in a similar way to `align-self`."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -423,7 +447,46 @@
               },
               "webview_android": {
                 "version_added": "57"
-              }
+              },
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "position_absolute_context": {
+          "__compat": {
+            "description": "Supported for absolutely-positioned boxes",
+            "spec_url": "https://drafts.csswg.org/css-align/#align-self-property",
+            "tags": [
+              "web-features:absolute-positioning"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "122"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "134"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/alignment-baseline.json b/css/properties/alignment-baseline.json
index 2b06499e4fcb02..74ad2ceb4272ed 100644
--- a/css/properties/alignment-baseline.json
+++ b/css/properties/alignment-baseline.json
@@ -7,14 +7,15 @@
             "https://drafts.csswg.org/css-inline-3/#alignment-baseline-property",
             "https://svgwg.org/svg2-draft/text.html#AlignmentBaselineProperty"
           ],
+          "tags": [
+            "web-features:alignment-baseline"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": false
             },
@@ -30,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +42,9 @@
         },
         "alphabetic": {
           "__compat": {
+            "tags": [
+              "web-features:alignment-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -61,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,6 +78,9 @@
         },
         "baseline": {
           "__compat": {
+            "tags": [
+              "web-features:alignment-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -93,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -104,6 +114,9 @@
         },
         "central": {
           "__compat": {
+            "tags": [
+              "web-features:alignment-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -125,7 +138,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,6 +150,9 @@
         },
         "ideographic": {
           "__compat": {
+            "tags": [
+              "web-features:alignment-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -157,7 +174,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -168,6 +186,9 @@
         },
         "mathematical": {
           "__compat": {
+            "tags": [
+              "web-features:alignment-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -189,7 +210,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -200,6 +222,9 @@
         },
         "middle": {
           "__compat": {
+            "tags": [
+              "web-features:alignment-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -221,7 +246,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/all.json b/css/properties/all.json
index 5b80a5717281a4..4592a6d02609c0 100644
--- a/css/properties/all.json
+++ b/css/properties/all.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/all",
           "spec_url": "https://drafts.csswg.org/css-cascade/#all-shorthand",
+          "tags": [
+            "web-features:all"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/alt.json b/css/properties/alt.json
index c0db2c374527b7..8c164589fa3e18 100644
--- a/css/properties/alt.json
+++ b/css/properties/alt.json
@@ -32,7 +32,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/anchor-name.json b/css/properties/anchor-name.json
index c159f3d40e8125..9fe696a090a427 100644
--- a/css/properties/anchor-name.json
+++ b/css/properties/anchor-name.json
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -66,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/anchor-scope.json b/css/properties/anchor-scope.json
new file mode 100644
index 00000000000000..2c2fcaf31180f8
--- /dev/null
+++ b/css/properties/anchor-scope.json
@@ -0,0 +1,123 @@
+{
+  "css": {
+    "properties": {
+      "anchor-scope": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#propdef-anchor-scope",
+          "tags": [
+            "web-features:anchor-positioning"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "131"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        },
+        "all": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#valdef-anchor-scope-all",
+            "tags": [
+              "web-features:anchor-positioning"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "none": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#valdef-anchor-scope-none",
+            "tags": [
+              "web-features:anchor-positioning"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/css/properties/animation-composition.json b/css/properties/animation-composition.json
index f054887fefe985..c94a8361036fbb 100644
--- a/css/properties/animation-composition.json
+++ b/css/properties/animation-composition.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/animation-delay.json b/css/properties/animation-delay.json
index adf828fb8830e5..4a1076c5f0deb5 100644
--- a/css/properties/animation-delay.json
+++ b/css/properties/animation-delay.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-delay",
           "spec_url": "https://drafts.csswg.org/css-animations/#animation-delay",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -103,7 +106,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/animation-direction.json b/css/properties/animation-direction.json
index 1ba4b1b67c6c6d..fa23aab7664cbe 100644
--- a/css/properties/animation-direction.json
+++ b/css/properties/animation-direction.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-direction",
           "spec_url": "https://drafts.csswg.org/css-animations/#animation-direction",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -90,7 +93,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,6 +105,9 @@
         "alternate": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-direction-alternate",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -124,7 +131,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,6 +144,9 @@
         "alternate-reverse": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-direction-alternate-reverse",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -163,7 +174,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -175,6 +187,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-direction-normal",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -198,7 +213,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -210,6 +226,9 @@
         "reverse": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-direction-reverse",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -237,7 +256,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/animation-duration.json b/css/properties/animation-duration.json
index 8457e13746db48..74a2bd25a14943 100644
--- a/css/properties/animation-duration.json
+++ b/css/properties/animation-duration.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-duration",
           "spec_url": "https://drafts.csswg.org/css-animations/#animation-duration",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -108,7 +111,8 @@
                 "prefix": "-webkit-",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,9 +122,12 @@
         },
         "auto": {
           "__compat": {
-            "description": "<code>auto</code> value",
+            "description": "`auto` value",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-duration#Values",
             "spec_url": "https://drafts.csswg.org/css-animations-2/#valdef-animation-duration-auto",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "115"
@@ -129,7 +136,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": false,
-                "notes": "Firefox does not currently support the <code>auto</code> value and only accepts values in seconds or milliseconds. It's recommended that <em>1ms</em> is used until <code>auto</code> is supported."
+                "notes": "Firefox does not currently support the `auto` value and only accepts values in seconds or milliseconds. It's recommended that _1ms_ is used until `auto` is supported."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -143,7 +150,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/animation-fill-mode.json b/css/properties/animation-fill-mode.json
index ebb617c5dfae5e..ec18514cd817af 100644
--- a/css/properties/animation-fill-mode.json
+++ b/css/properties/animation-fill-mode.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-fill-mode",
           "spec_url": "https://drafts.csswg.org/css-animations/#animation-fill-mode",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -98,7 +101,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,6 +113,9 @@
         "backwards": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-fill-mode-backwards",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -132,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,6 +152,9 @@
         "both": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-fill-mode-both",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -167,7 +178,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -179,6 +191,9 @@
         "forwards": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-fill-mode-forwards",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -202,7 +217,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -214,6 +230,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-fill-mode-none",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -237,7 +256,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/animation-iteration-count.json b/css/properties/animation-iteration-count.json
index a7ad7c2b6eb31b..d5b7b1a3cde835 100644
--- a/css/properties/animation-iteration-count.json
+++ b/css/properties/animation-iteration-count.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-iteration-count",
           "spec_url": "https://drafts.csswg.org/css-animations/#animation-iteration-count",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -90,7 +93,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,6 +105,9 @@
         "infinite": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-iteration-count-infinite",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -124,7 +131,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/animation-name.json b/css/properties/animation-name.json
index efcd645ed4b3e5..0a4b28084cc8f8 100644
--- a/css/properties/animation-name.json
+++ b/css/properties/animation-name.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-name",
           "spec_url": "https://drafts.csswg.org/css-animations/#animation-name",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -90,7 +93,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,6 +105,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-name-none",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -124,7 +131,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/animation-play-state.json b/css/properties/animation-play-state.json
index 7a0c88e723ec41..d1e3ab23ce691d 100644
--- a/css/properties/animation-play-state.json
+++ b/css/properties/animation-play-state.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-play-state",
           "spec_url": "https://drafts.csswg.org/css-animations/#animation-play-state",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -98,7 +101,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,6 +113,9 @@
         "paused": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-play-state-paused",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -132,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,6 +152,9 @@
         "running": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-animations/#valdef-animation-play-state-running",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -167,7 +178,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/animation-range-end.json b/css/properties/animation-range-end.json
index 568ac8ce863696..4d543d43fe2e41 100644
--- a/css/properties/animation-range-end.json
+++ b/css/properties/animation-range-end.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/animation-range-start.json b/css/properties/animation-range-start.json
index 0070293f4b375e..07c16508a3725c 100644
--- a/css/properties/animation-range-start.json
+++ b/css/properties/animation-range-start.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/animation-range.json b/css/properties/animation-range.json
index 18ea47540daaa2..52c37c4728656c 100644
--- a/css/properties/animation-range.json
+++ b/css/properties/animation-range.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/animation-timeline.json b/css/properties/animation-timeline.json
index 0e0194d2d655e8..3dd22a243b9b54 100644
--- a/css/properties/animation-timeline.json
+++ b/css/properties/animation-timeline.json
@@ -37,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -47,7 +48,7 @@
         },
         "scroll": {
           "__compat": {
-            "description": "<code>scroll()</code>",
+            "description": "`scroll()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-timeline/scroll",
             "spec_url": "https://drafts.csswg.org/scroll-animations/#scroll-notation",
             "tags": [
@@ -69,8 +70,8 @@
                   }
                 ],
                 "notes": [
-                  "Zero scroll range is treated as 100% but should be 0% (see <a href='https://bugzil.la/1780865'>bug 1780865</a>).",
-                  "Supports the deprecated <code>horizontal</code> and <code>vertical</code> axis values, and not the <code>x</code> and <code>y</code> values."
+                  "Zero scroll range is treated as 100% but should be 0% (see [bug 1780865](https://bugzil.la/1780865)).",
+                  "Supports the deprecated `horizontal` and `vertical` axis values, and not the `x` and `y` values."
                 ]
               },
               "firefox_android": "mirror",
@@ -86,7 +87,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -97,7 +99,7 @@
         },
         "view": {
           "__compat": {
-            "description": "<code>view()</code>",
+            "description": "`view()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-timeline/view",
             "spec_url": "https://drafts.csswg.org/scroll-animations/#view-notation",
             "tags": [
@@ -132,7 +134,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/animation-timing-function.json b/css/properties/animation-timing-function.json
index a9a951636d95b7..e86b33f411bcbb 100644
--- a/css/properties/animation-timing-function.json
+++ b/css/properties/animation-timing-function.json
@@ -4,7 +4,13 @@
       "animation-timing-function": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-timing-function",
-          "spec_url": "https://drafts.csswg.org/css-animations/#animation-timing-function",
+          "spec_url": [
+            "https://drafts.csswg.org/css-animations/#animation-timing-function",
+            "https://drafts.csswg.org/css-easing/#linear-easing-function-parsin"
+          ],
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -90,7 +96,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,7 +107,10 @@
         },
         "jump": {
           "__compat": {
-            "description": "<code>jump-</code> keywords for <code>steps()</code>",
+            "description": "`jump-` keywords for `steps()`",
+            "tags": [
+              "web-features:animations-css"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -122,7 +132,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/animation.json b/css/properties/animation.json
index 84dab642c3cb80..8e21bab876fb72 100644
--- a/css/properties/animation.json
+++ b/css/properties/animation.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation",
           "spec_url": "https://drafts.csswg.org/css-animations/#animation",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": [
               {
@@ -97,9 +100,10 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "2",
-                "notes": "The <a href='https://developer.mozilla.org/docs/Web/CSS/animation-fill-mode'><code>animation-fill-mode</code></a> property is not supported in Android browsers below 2.3."
+                "notes": "The [`animation-fill-mode`](https://developer.mozilla.org/docs/Web/CSS/animation-fill-mode) property is not supported in Android browsers below 2.3."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,7 +113,7 @@
         },
         "animation-timeline_included": {
           "__compat": {
-            "description": "<code>animation-timeline</code> included in shorthand",
+            "description": "`animation-timeline` included in shorthand",
             "tags": [
               "web-features:scroll-driven-animations"
             ],
@@ -117,7 +121,7 @@
               "chrome": {
                 "version_added": "115",
                 "partial_implementation": true,
-                "notes": "Support is currently reset-only. Including <code>animation</code> resets a previously-declared <code>animation-timeline</code> value to <code>auto</code>, but <code>animation-timeline</code> cannot be set via <code>animation</code>."
+                "notes": "Support is currently reset-only. Including `animation` resets a previously-declared `animation-timeline` value to `auto`, but `animation-timeline` cannot be set via `animation`."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -136,7 +140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/appearance.json b/css/properties/appearance.json
index 9ba6e83d96663f..b5a63608241978 100644
--- a/css/properties/appearance.json
+++ b/css/properties/appearance.json
@@ -67,7 +67,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +103,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +142,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -178,7 +181,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -216,7 +220,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -254,7 +259,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -284,7 +290,7 @@
                 {
                   "version_added": "1",
                   "partial_implementation": true,
-                  "notes": "See <a href='https://bugzil.la/1481615'>bug 1481615</a>."
+                  "notes": "See [bug 1481615](https://bugzil.la/1481615)."
                 }
               ],
               "firefox_android": "mirror",
@@ -301,7 +307,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -339,7 +346,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -369,7 +377,7 @@
                 {
                   "version_added": "1",
                   "partial_implementation": true,
-                  "notes": "Doesn't work with <code>&lt;input type=\"checkbox\"&gt;</code> and <code>&lt;input type=\"radio\"&gt;</code>."
+                  "notes": "Doesn't work with `&lt;input type=\"checkbox\"&gt;` and `&lt;input type=\"radio\"&gt;`."
                 }
               ],
               "firefox_android": "mirror",
@@ -386,7 +394,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -424,7 +433,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -462,7 +472,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -500,7 +511,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -538,7 +550,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -578,7 +591,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/aspect-ratio.json b/css/properties/aspect-ratio.json
index 845367c64916a2..2a55f87d2b0b3a 100644
--- a/css/properties/aspect-ratio.json
+++ b/css/properties/aspect-ratio.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-aspect-ratio-auto",
+            "tags": [
+              "web-features:aspect-ratio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "88"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/backdrop-filter.json b/css/properties/backdrop-filter.json
index 0dc6136f259766..37f518814c3fdd 100644
--- a/css/properties/backdrop-filter.json
+++ b/css/properties/backdrop-filter.json
@@ -44,7 +44,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/backface-visibility.json b/css/properties/backface-visibility.json
index 5cfc989d3f1fe6..63a7520aee21f5 100644
--- a/css/properties/backface-visibility.json
+++ b/css/properties/backface-visibility.json
@@ -38,8 +38,7 @@
               },
               {
                 "prefix": "-moz-",
-                "version_added": "10",
-                "version_removed": "preview"
+                "version_added": "10"
               }
             ],
             "firefox_android": "mirror",
@@ -68,7 +67,8 @@
                 "prefix": "-webkit-",
                 "version_added": "3"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/background-attachment.json b/css/properties/background-attachment.json
index 31d7819aca1b6d..e9d4c0dc53986d 100644
--- a/css/properties/background-attachment.json
+++ b/css/properties/background-attachment.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-attachment",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-background-attachment",
+          "tags": [
+            "web-features:background-attachment"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
               "version_added": "3.2"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,6 +49,9 @@
         "fixed": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-attachment-fixed",
+            "tags": [
+              "web-features:background-attachment"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -73,7 +80,7 @@
                   "version_added": "14",
                   "version_removed": "15.4",
                   "partial_implementation": true,
-                  "notes": "<code>local</code> is recognized but has no effect. See <a href='https://webkit.org/b/219324'>bug 219324</a>."
+                  "notes": "`local` is recognized but has no effect. See [bug 219324](https://webkit.org/b/219324)."
                 },
                 {
                   "version_added": "3.1",
@@ -88,13 +95,14 @@
                   "version_added": "5",
                   "version_removed": "15.4",
                   "partial_implementation": true,
-                  "notes": "<code>fixed</code> is recognized but has no effect. See <a href='https://webkit.org/b/219324'>bug 219324</a>."
+                  "notes": "`fixed` is recognized but has no effect. See [bug 219324](https://webkit.org/b/219324)."
                 }
               ],
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -106,6 +114,9 @@
         "local": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-attachment-local",
+            "tags": [
+              "web-features:background-attachment"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -134,7 +145,7 @@
                   "version_added": "13",
                   "version_removed": "15.4",
                   "partial_implementation": true,
-                  "notes": "<code>local</code> is recognized but has no effect. See <a href='https://webkit.org/b/219324'>bug 219324</a>."
+                  "notes": "`local` is recognized but has no effect. See [bug 219324](https://webkit.org/b/219324)."
                 },
                 {
                   "version_added": "5",
@@ -149,18 +160,19 @@
                   "version_added": "13",
                   "version_removed": "15.4",
                   "partial_implementation": true,
-                  "notes": "<code>local</code> is recognized but has no effect. See <a href='https://webkit.org/b/219324'>bug 219324</a>."
+                  "notes": "`local` is recognized but has no effect. See [bug 219324](https://webkit.org/b/219324)."
                 },
                 {
                   "version_added": "4.2",
                   "version_removed": "13",
-                  "notes": "If <code>-webkit-overflow-scrolling: touch</code> is set, then <code>local</code> has no effect."
+                  "notes": "If `-webkit-overflow-scrolling: touch` is set, then `local` has no effect."
                 }
               ],
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -172,6 +184,9 @@
         "multiple_backgrounds": {
           "__compat": {
             "description": "Multiple backgrounds",
+            "tags": [
+              "web-features:background-attachment"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -201,7 +216,8 @@
                 "version_added": "3.2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -213,6 +229,9 @@
         "scroll": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-attachment-scroll",
+            "tags": [
+              "web-features:background-attachment"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -238,7 +257,8 @@
                 "version_added": "3.2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/background-blend-mode.json b/css/properties/background-blend-mode.json
index 008d6b67e699c6..2026048d4000e2 100644
--- a/css/properties/background-blend-mode.json
+++ b/css/properties/background-blend-mode.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-blend-mode",
           "spec_url": "https://drafts.fxtf.org/compositing/#background-blend-mode",
+          "tags": [
+            "web-features:background-blend-mode"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/background-clip.json b/css/properties/background-clip.json
index 03affee6e5b3bb..8dffc27daafbe7 100644
--- a/css/properties/background-clip.json
+++ b/css/properties/background-clip.json
@@ -4,7 +4,10 @@
       "background-clip": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-clip",
-          "spec_url": "https://drafts.csswg.org/css-backgrounds/#background-clip",
+          "spec_url": [
+            "https://drafts.csswg.org/css-backgrounds/#background-clip",
+            "https://drafts.csswg.org/css-backgrounds-4/#background-clip"
+          ],
           "tags": [
             "web-features:background-clip"
           ],
@@ -16,7 +19,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "Chrome accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Chrome accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "chrome_android": "mirror",
@@ -27,7 +30,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "12",
-                "notes": "Since Edge 79, accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Since Edge 79, accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "firefox": [
@@ -43,13 +46,13 @@
                 "version_added": "1",
                 "version_removed": "4",
                 "partial_implementation": true,
-                "notes": "Used the <code>-moz-background-clip: padding | border</code> syntax."
+                "notes": "Used the `-moz-background-clip: padding | border` syntax."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "In IE 7 and IE 8 of Internet Explorer, this property always behaved like <code>background-clip: padding</code> when <code>overflow</code> was <code>hidden</code>, <code>auto</code>, or <code>scroll</code>."
+              "notes": "In IE 7 and IE 8 of Internet Explorer, this property always behaved like `background-clip: padding-box` when `overflow` was `hidden`, `auto`, or `scroll`."
             },
             "oculus": "mirror",
             "opera": [
@@ -59,7 +62,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "15",
-                "notes": "Opera accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Opera accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "opera_android": [
@@ -69,7 +72,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "14",
-                "notes": "Opera accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Opera accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "safari": [
@@ -79,7 +82,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "3",
-                "notes": "Safari accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Safari accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "safari_ios": [
@@ -89,11 +92,12 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "Safari accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Safari accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -101,6 +105,43 @@
             "deprecated": false
           }
         },
+        "border-area": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-backgrounds-4/#valdef-background-clip-border-area",
+            "tags": [
+              "web-features:background-clip-border-area"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "border-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-clip-border-box",
@@ -130,7 +171,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -159,7 +201,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "9",
-                "notes": "In IE 7 and IE 9 of Internet Explorer, it always behaved like <code>background-clip: padding</code> if <code>overflow: hidden | auto | scroll</code>"
+                "notes": "In IE 7 and IE 9 of Internet Explorer, it always behaved like `background-clip: padding-box` if `overflow: hidden | auto | scroll`"
               },
               "oculus": "mirror",
               "opera": {
@@ -175,7 +217,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -213,7 +256,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -224,6 +268,7 @@
         },
         "text": {
           "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-backgrounds-4/#valdef-background-clip-text",
             "tags": [
               "web-features:background-clip-text"
             ],
@@ -235,7 +280,7 @@
                 {
                   "version_added": "3",
                   "partial_implementation": true,
-                  "notes": "The <code>text</code> value is only supported by <code>-webkit-background-clip</code> (and not by <code>background-clip</code>; see <a href='https://crbug.com/1339290'>bug 1339290</a>)."
+                  "notes": "The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see [bug 40229927](https://crbug.com/40229927))."
                 }
               ],
               "chrome_android": "mirror",
@@ -246,7 +291,7 @@
                 {
                   "version_added": "79",
                   "partial_implementation": true,
-                  "notes": "The <code>text</code> value is only supported by <code>-webkit-background-clip</code> (and not by <code>background-clip</code>; see <a href='https://crbug.com/1339290'>bug 1339290</a>)."
+                  "notes": "The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see [bug 40229927](https://crbug.com/40229927))."
                 },
                 {
                   "version_added": "15",
@@ -260,7 +305,9 @@
                 }
               ],
               "firefox": {
-                "version_added": "49"
+                "version_added": "49",
+                "partial_implementation": true,
+                "notes": "Does not work with `background-attachment: fixed` ([bug 1313757](https://bugzil.la/1313757)), in multi-layer backgrounds with other values ([bug 1481498](https://bugzil.la/1481498)), and in some other special cases (see [bug 1656784](https://bugzil.la/1656784))."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -276,12 +323,13 @@
                 {
                   "version_added": "4",
                   "partial_implementation": true,
-                  "notes": "The <code>text</code> value is only supported by <code>-webkit-background-clip</code> (and not by <code>background-clip</code>)."
+                  "notes": "The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`)."
                 }
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/background-color.json b/css/properties/background-color.json
index 65bca7f5728483..cce019df48dd89 100644
--- a/css/properties/background-color.json
+++ b/css/properties/background-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-color",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#background-color",
+          "tags": [
+            "web-features:background-color"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -19,7 +22,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "4",
-              "notes": "In Internet Explorer 8 and 9, there is a bug where a computed <code>background-color</code> of <code>transparent</code> causes <code>click</code> events to not get fired on overlaid elements."
+              "notes": "In Internet Explorer 8 and 9, there is a bug where a computed `background-color` of `transparent` causes `click` events to not get fired on overlaid elements."
             },
             "oculus": "mirror",
             "opera": {
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/background-image.json b/css/properties/background-image.json
index af213ac55e743f..bf55c52a03c7e2 100644
--- a/css/properties/background-image.json
+++ b/css/properties/background-image.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-image",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#background-image",
+          "tags": [
+            "web-features:background-image"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "If the <code>browser.display.use_document_colors</code> user preference in <code>about:config</code> is set to <code>false</code>, background images will not be displayed."
+              "notes": "If the `browser.display.use_document_colors` user preference in `about:config` is set to `false`, background images will not be displayed."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,9 +45,12 @@
         },
         "element": {
           "__compat": {
-            "description": "<code>element()</code>",
+            "description": "`element()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/element",
             "spec_url": "https://drafts.csswg.org/css-images-4/#element-notation",
+            "tags": [
+              "web-features:element"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -80,10 +88,13 @@
             "description": "Gradients",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient",
             "spec_url": "https://drafts.csswg.org/css-images-4/#gradients",
+            "tags": [
+              "web-features:gradients"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1",
-                "notes": "Some versions support only experimental gradients prefixed with <code>-webkit</code>."
+                "notes": "Some versions support only experimental gradients prefixed with `-webkit`."
               },
               "chrome_android": "mirror",
               "edge": {
@@ -91,7 +102,7 @@
               },
               "firefox": {
                 "version_added": "3.6",
-                "notes": "Some versions support only experimental gradients prefixed with <code>-moz</code>."
+                "notes": "Some versions support only experimental gradients prefixed with `-moz`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -100,16 +111,17 @@
               "oculus": "mirror",
               "opera": {
                 "version_added": "11",
-                "notes": "Some versions support only experimental gradients prefixed with <code>-o</code>."
+                "notes": "Some versions support only experimental gradients prefixed with `-o`."
               },
               "opera_android": "mirror",
               "safari": {
                 "version_added": "4",
-                "notes": "Some versions support only experimental gradients prefixed with <code>-webkit</code>."
+                "notes": "Some versions support only experimental gradients prefixed with `-webkit`."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -120,7 +132,7 @@
         },
         "image-rect": {
           "__compat": {
-            "description": "<code>image-rect()</code>",
+            "description": "`image-rect()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/-moz-image-rect",
             "support": {
               "chrome": {
@@ -145,7 +157,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,7 +169,7 @@
         },
         "image-set": {
           "__compat": {
-            "description": "<code>image-set()</code>",
+            "description": "`image-set()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image/image-set",
             "spec_url": "https://drafts.csswg.org/css-images-4/#image-set-notation",
             "tags": [
@@ -176,7 +189,7 @@
                   "version_added": "20",
                   "version_removed": "113",
                   "partial_implementation": true,
-                  "notes": "Support for <code>url</code> images only and <code>x</code> is the only supported resolution unit."
+                  "notes": "Support for `url` images only and `x` is the only supported resolution unit."
                 }
               ],
               "chrome_android": "mirror",
@@ -193,7 +206,7 @@
                   "version_added": "88",
                   "version_removed": "89",
                   "partial_implementation": true,
-                  "notes": "The <code>type()</code> function is not supported as an argument to <code>image-set()</code>."
+                  "notes": "The `type()` function is not supported as an argument to `image-set()`."
                 }
               ],
               "firefox_android": "mirror",
@@ -215,32 +228,33 @@
                   "version_added": "14",
                   "version_removed": "17",
                   "partial_implementation": true,
-                  "notes": "The <code>type()</code> function is not supported as an argument to <code>image-set()</code>."
+                  "notes": "The `type()` function is not supported as an argument to `image-set()`."
                 },
                 {
                   "prefix": "-webkit-",
                   "version_added": "14",
                   "version_removed": "17",
                   "partial_implementation": true,
-                  "notes": "The <code>type()</code> function is not supported as an argument to <code>image-set()</code>."
+                  "notes": "The `type()` function is not supported as an argument to `image-set()`."
                 },
                 {
                   "version_added": "10.1",
                   "version_removed": "14",
                   "partial_implementation": true,
-                  "notes": "Support for <code>url</code> images only and <code>x</code> is the only supported resolution unit."
+                  "notes": "Support for `url` images only and `x` is the only supported resolution unit."
                 },
                 {
                   "prefix": "-webkit-",
                   "version_added": "6",
                   "version_removed": "14",
                   "partial_implementation": true,
-                  "notes": "Support for <code>url</code> images only and <code>x</code> is the only supported resolution unit."
+                  "notes": "Support for `url` images only and `x` is the only supported resolution unit."
                 }
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -252,6 +266,9 @@
         "multiple_backgrounds": {
           "__compat": {
             "description": "Multiple backgrounds",
+            "tags": [
+              "web-features:background-image"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -277,7 +294,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -289,6 +307,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-image-none",
+            "tags": [
+              "web-features:background-image"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -312,7 +333,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -324,6 +346,9 @@
         "svg_images": {
           "__compat": {
             "description": "SVG images",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "8"
@@ -353,7 +378,8 @@
                 "notes": "Support of SVG in CSS background is incomplete."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/background-origin.json b/css/properties/background-origin.json
index fa40845c59be63..73fb01f96ba88d 100644
--- a/css/properties/background-origin.json
+++ b/css/properties/background-origin.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-origin",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-background-origin",
+          "tags": [
+            "web-features:background-origin"
+          ],
           "support": {
             "chrome": [
               {
@@ -13,7 +16,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "Chrome accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Chrome accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "chrome_android": "mirror",
@@ -24,7 +27,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "12",
-                "notes": "Since Edge 79, accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Since Edge 79, accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "firefox": [
@@ -40,13 +43,13 @@
                 "version_added": "1",
                 "version_removed": "4",
                 "partial_implementation": true,
-                "notes": "Used the <code>-moz-background-clip: padding | border</code> syntax."
+                "notes": "Used the `-moz-background-clip: padding | border` syntax."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "In IE 7 and before, Internet explorer was behaving as if <code>background-origin: border-box</code> was set. In Internet Explorer 8, as if <code>background-origin: padding-box</code>, the regular default value, was set."
+              "notes": "In IE 7 and before, Internet explorer was behaving as if `background-origin: border-box` was set. In Internet Explorer 8, as if `background-origin: padding-box`, the regular default value, was set."
             },
             "oculus": "mirror",
             "opera": [
@@ -56,7 +59,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "15",
-                "notes": "Opera accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Opera accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "opera_android": [
@@ -66,7 +69,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "14",
-                "notes": "Opera accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Opera accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "safari": [
@@ -76,7 +79,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "3",
-                "notes": "Webkit accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Webkit accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "safari_ios": [
@@ -86,7 +89,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "Webkit accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "Webkit accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
             ],
             "samsunginternet_android": "mirror",
@@ -97,9 +100,10 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "4",
-                "notes": "WebView accepts alternate synonyms to its values: <code>padding</code>, <code>border</code>, and <code>content</code>."
+                "notes": "WebView accepts alternate synonyms to its values: `padding`, `border`, and `content`."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -110,6 +114,9 @@
         "border-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-origin-border-box",
+            "tags": [
+              "web-features:background-origin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -133,7 +140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -145,6 +153,9 @@
         "content-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-origin-content-box",
+            "tags": [
+              "web-features:background-origin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -159,7 +170,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "9",
-                "notes": "In IE 7 and IE 9 of Internet Explorer, it always behaved like <code>background-clip: padding</code> if <code>overflow: hidden | auto | scroll</code>."
+                "notes": "In IE 7 and IE 9 of Internet Explorer, it always behaved like `background-clip: padding` if `overflow: hidden | auto | scroll`."
               },
               "oculus": "mirror",
               "opera": {
@@ -177,7 +188,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -189,6 +201,9 @@
         "padding-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-origin-padding-box",
+            "tags": [
+              "web-features:background-origin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -212,7 +227,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/background-position-x.json b/css/properties/background-position-x.json
index 490bcc25e7e55f..6499d5c7ca2981 100644
--- a/css/properties/background-position-x.json
+++ b/css/properties/background-position-x.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-position-x",
           "spec_url": "https://drafts.csswg.org/css-backgrounds-4/#background-position-longhands",
+          "tags": [
+            "web-features:background-position"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,7 +42,10 @@
         },
         "side-relative_values": {
           "__compat": {
-            "description": "Side-relative values (such as <code>bottom 10%</code>)",
+            "description": "Side-relative values (such as `bottom 10%`)",
+            "tags": [
+              "web-features:background-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -63,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/background-position-y.json b/css/properties/background-position-y.json
index b216fa54e2b8cd..0c3117a2e2bbfc 100644
--- a/css/properties/background-position-y.json
+++ b/css/properties/background-position-y.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-position-y",
           "spec_url": "https://drafts.csswg.org/css-backgrounds-4/#background-position-longhands",
+          "tags": [
+            "web-features:background-position"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,7 +42,10 @@
         },
         "side-relative_values": {
           "__compat": {
-            "description": "Side-relative values (such as <code>bottom 10%</code>)",
+            "description": "Side-relative values (such as `bottom 10%`)",
+            "tags": [
+              "web-features:background-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -63,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/background-position.json b/css/properties/background-position.json
index c87410ead597d9..3af4dfb184986a 100644
--- a/css/properties/background-position.json
+++ b/css/properties/background-position.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-position",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#background-position",
+          "tags": [
+            "web-features:background-position"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,14 +45,17 @@
         "bottom": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-position-bottom",
+            "tags": [
+              "web-features:background-position"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "1"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -62,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,14 +82,17 @@
         "center": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-position-center",
+            "tags": [
+              "web-features:background-position"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "1"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -95,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,14 +119,17 @@
         "left": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-position-left",
+            "tags": [
+              "web-features:background-position"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "1"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -128,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,6 +156,9 @@
         "multiple_backgrounds": {
           "__compat": {
             "description": "Multiple backgrounds",
+            "tags": [
+              "web-features:background-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -165,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -177,14 +197,17 @@
         "right": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-position-right",
+            "tags": [
+              "web-features:background-position"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "1"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -198,7 +221,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -209,7 +233,10 @@
         },
         "side-relative_values": {
           "__compat": {
-            "description": "Side-relative values (such as <code>bottom 10% right 20%</code>)",
+            "description": "Side-relative values (such as `bottom 10% right 20%`)",
+            "tags": [
+              "web-features:background-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -235,7 +262,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -247,14 +275,17 @@
         "top": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-position-top",
+            "tags": [
+              "web-features:background-position"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "1"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -268,7 +299,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/background-repeat.json b/css/properties/background-repeat.json
index 824d55bba056bc..7485a8e7629ec3 100644
--- a/css/properties/background-repeat.json
+++ b/css/properties/background-repeat.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-repeat",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-background-repeat",
+          "tags": [
+            "web-features:background-repeat"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
         "multiple_backgrounds": {
           "__compat": {
             "description": "Multiple backgrounds",
+            "tags": [
+              "web-features:background-repeat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -70,7 +77,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,6 +90,9 @@
         "no-repeat": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-repeat-no-repeat",
+            "tags": [
+              "web-features:background-repeat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -105,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -117,6 +129,9 @@
         "repeat": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-repeat-repeat",
+            "tags": [
+              "web-features:background-repeat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -140,7 +155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -152,6 +168,9 @@
         "repeat-x": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-repeat-repeat-x",
+            "tags": [
+              "web-features:background-repeat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -175,7 +194,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -187,6 +207,9 @@
         "repeat-y": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-repeat-repeat-y",
+            "tags": [
+              "web-features:background-repeat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -210,7 +233,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -222,6 +246,9 @@
         "round": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-repeat-round",
+            "tags": [
+              "web-features:background-repeat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -253,7 +280,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -265,6 +293,9 @@
         "space": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-repeat-space",
+            "tags": [
+              "web-features:background-repeat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -296,7 +327,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -308,6 +340,9 @@
         "2-value": {
           "__compat": {
             "description": "Two-value syntax (different values for x &amp; y directions)",
+            "tags": [
+              "web-features:background-repeat"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -337,7 +372,8 @@
                 "version_added": "4"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/background-size.json b/css/properties/background-size.json
index 4f4872b0f19a01..1e5de907bbeea4 100644
--- a/css/properties/background-size.json
+++ b/css/properties/background-size.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background-size",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-background-size",
+          "tags": [
+            "web-features:background-size"
+          ],
           "support": {
             "chrome": [
               {
@@ -13,7 +16,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 <code>background-size</code> in which an omitted second value is treated as duplicating the first value; this draft does not include the <code>contain</code> or <code>cover</code> keywords."
+                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords."
               }
             ],
             "chrome_android": "mirror",
@@ -52,7 +55,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "15",
-                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 <code>background-size</code> in which an omitted second value is treated as duplicating the first value; this draft does not include the <code>contain</code> or <code>cover</code> keywords."
+                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords."
               },
               {
                 "prefix": "-o-",
@@ -68,7 +71,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "14",
-                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 <code>background-size</code> in which an omitted second value is treated as duplicating the first value; this draft does not include the <code>contain</code> or <code>cover</code> keywords."
+                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords."
               },
               {
                 "prefix": "-o-",
@@ -84,7 +87,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "3",
-                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 <code>background-size</code> in which an omitted second value is treated as duplicating the first value; this draft does not include the <code>contain</code> or <code>cover</code> keywords."
+                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords."
               }
             ],
             "safari_ios": [
@@ -94,7 +97,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 <code>background-size</code> in which an omitted second value is treated as duplicating the first value; this draft does not include the <code>contain</code> or <code>cover</code> keywords."
+                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords."
               }
             ],
             "samsunginternet_android": "mirror",
@@ -105,9 +108,10 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "≤37",
-                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 <code>background-size</code> in which an omitted second value is treated as duplicating the first value; this draft does not include the <code>contain</code> or <code>cover</code> keywords."
+                "notes": "WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -118,6 +122,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-size-auto",
+            "tags": [
+              "web-features:background-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -127,7 +134,7 @@
                 "version_added": "12"
               },
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "3.6"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -141,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -153,6 +161,9 @@
         "contain": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-size-contain",
+            "tags": [
+              "web-features:background-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -180,7 +191,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -192,6 +204,9 @@
         "cover": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-background-size-cover",
+            "tags": [
+              "web-features:background-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -219,7 +234,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/background.json b/css/properties/background.json
index f22eff9f2a7412..a4779746a1754f 100644
--- a/css/properties/background.json
+++ b/css/properties/background.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/background",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-background",
+          "tags": [
+            "web-features:background"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,6 +49,9 @@
         "SVG_image_as_background": {
           "__compat": {
             "description": "SVG image as background",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -74,7 +81,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -85,7 +93,10 @@
         },
         "background-clip": {
           "__compat": {
-            "description": "Values of <code>background-clip</code> longhand",
+            "description": "Values of `background-clip` longhand",
+            "tags": [
+              "web-features:background-clip"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -113,7 +124,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -124,7 +136,10 @@
         },
         "background-origin": {
           "__compat": {
-            "description": "Values of <code>background-origin</code> longhand",
+            "description": "Values of `background-origin` longhand",
+            "tags": [
+              "web-features:background-origin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -152,7 +167,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -163,7 +179,10 @@
         },
         "background-size": {
           "__compat": {
-            "description": "Values of <code>background-size</code> longhand",
+            "description": "Values of `background-size` longhand",
+            "tags": [
+              "web-features:background-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -195,7 +214,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -207,6 +227,9 @@
         "multiple_backgrounds": {
           "__compat": {
             "description": "Multiple backgrounds",
+            "tags": [
+              "web-features:background"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -234,7 +257,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/baseline-shift.json b/css/properties/baseline-shift.json
index 363c8f687582d9..4300f9fb054afe 100644
--- a/css/properties/baseline-shift.json
+++ b/css/properties/baseline-shift.json
@@ -7,6 +7,9 @@
             "https://drafts.csswg.org/css-inline-3/#baseline-shift-property",
             "https://svgwg.org/svg2-draft/text.html#BaselineShiftProperty"
           ],
+          "tags": [
+            "web-features:baseline-shift"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
         "baseline": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline-3/#valdef-baseline-shift-baseline",
+            "tags": [
+              "web-features:baseline-shift"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -60,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,6 +80,9 @@
         "sub": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline-3/#valdef-baseline-shift-sub",
+            "tags": [
+              "web-features:baseline-shift"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -93,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,6 +117,9 @@
         "super": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline-3/#valdef-baseline-shift-super",
+            "tags": [
+              "web-features:baseline-shift"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -126,7 +141,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/baseline-source.json b/css/properties/baseline-source.json
index 451a17e600e17e..a8c57e49c2c8cf 100644
--- a/css/properties/baseline-source.json
+++ b/css/properties/baseline-source.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -63,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -99,7 +101,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,7 +138,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/block-size.json b/css/properties/block-size.json
index dfcfbe3e31cb8b..bcb863fa514b0b 100644
--- a/css/properties/block-size.json
+++ b/css/properties/block-size.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-logical/#dimension-properties",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -31,7 +34,8 @@
             "samsunginternet_android": {
               "version_added": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,7 +45,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -68,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -79,6 +84,9 @@
         },
         "fit-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -106,7 +114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -117,7 +126,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -145,7 +157,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -156,6 +169,9 @@
         },
         "max-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -185,7 +201,8 @@
               "samsunginternet_android": {
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -196,6 +213,9 @@
         },
         "min-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -225,7 +245,8 @@
               "samsunginternet_android": {
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-block-color.json b/css/properties/border-block-color.json
index 85363f7d2e266f..fb4c1bed94f942 100644
--- a/css/properties/border-block-color.json
+++ b/css/properties/border-block-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-color",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-border-block-color",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-end-color.json b/css/properties/border-block-end-color.json
index 8c8bdc80c49991..0a5a4c9f9b06e0 100644
--- a/css/properties/border-block-end-color.json
+++ b/css/properties/border-block-end-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-end-color",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-color",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-end-style.json b/css/properties/border-block-end-style.json
index 06a020cfb044f4..84fb2dced29801 100644
--- a/css/properties/border-block-end-style.json
+++ b/css/properties/border-block-end-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-end-style",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-style",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-end-width.json b/css/properties/border-block-end-width.json
index d80a5c188f2408..da08f06cfa5b1c 100644
--- a/css/properties/border-block-end-width.json
+++ b/css/properties/border-block-end-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-end-width",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-width",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-end.json b/css/properties/border-block-end.json
index 8aa1804094ec12..bcebc461a430f5 100644
--- a/css/properties/border-block-end.json
+++ b/css/properties/border-block-end.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-end",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-shorthands",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-start-color.json b/css/properties/border-block-start-color.json
index 2e4bed09435269..d1a93ecc75d0e4 100644
--- a/css/properties/border-block-start-color.json
+++ b/css/properties/border-block-start-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-start-color",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-color",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-start-style.json b/css/properties/border-block-start-style.json
index af580bee1e4c7c..86f9fdce773c7a 100644
--- a/css/properties/border-block-start-style.json
+++ b/css/properties/border-block-start-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-start-style",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-style",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-start-width.json b/css/properties/border-block-start-width.json
index d2390a9df6f05b..b1fa8fbe047a48 100644
--- a/css/properties/border-block-start-width.json
+++ b/css/properties/border-block-start-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-start-width",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-width",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-start.json b/css/properties/border-block-start.json
index c971cfc501b3e0..21c4d3467264e2 100644
--- a/css/properties/border-block-start.json
+++ b/css/properties/border-block-start.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-start",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-shorthands",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-style.json b/css/properties/border-block-style.json
index 4403b0b25b0f5c..bac7ed2338f450 100644
--- a/css/properties/border-block-style.json
+++ b/css/properties/border-block-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-style",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-border-block-style",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block-width.json b/css/properties/border-block-width.json
index 147027dcd23693..5e585c783f1647 100644
--- a/css/properties/border-block-width.json
+++ b/css/properties/border-block-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block-width",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-border-block-width",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-block.json b/css/properties/border-block.json
index 372f20cbe842f7..65df0c9cac2ec1 100644
--- a/css/properties/border-block.json
+++ b/css/properties/border-block.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-block",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-border-block",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-bottom-color.json b/css/properties/border-bottom-color.json
index d012ad4d51da52..1a1c1fa0d595aa 100644
--- a/css/properties/border-bottom-color.json
+++ b/css/properties/border-bottom-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-bottom-color",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-color",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-bottom-left-radius.json b/css/properties/border-bottom-left-radius.json
index aa00fa7790a3de..48cf122107cb04 100644
--- a/css/properties/border-bottom-left-radius.json
+++ b/css/properties/border-bottom-left-radius.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-bottom-left-radius",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-radius",
+          "tags": [
+            "web-features:border-radius"
+          ],
           "support": {
             "chrome": [
               {
@@ -28,7 +31,7 @@
             "firefox": [
               {
                 "version_added": "4",
-                "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if <code>border-style</code> was solid. This has been fixed in Firefox 50."
+                "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50."
               },
               {
                 "prefix": "-webkit-",
@@ -82,7 +85,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,6 +97,9 @@
         "elliptical_corners": {
           "__compat": {
             "description": "Elliptical corners",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -120,7 +127,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,6 +140,9 @@
         "percentages": {
           "__compat": {
             "description": "Percentages",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -148,7 +159,7 @@
                   "version_added": "1",
                   "version_removed": "4",
                   "partial_implementation": true,
-                  "notes": "Before Firefox 4, the <a href='https://developer.mozilla.org/docs/Web/CSS/percentage'><code>&lt;percentage&gt;</code></a> was relative to the width of the box even when specifying the radius for a height. This implied that <code>-moz-border-radius-bottomright</code> was always drawing an arc of circle, and never an ellipse, when followed by a single value."
+                  "notes": "Before Firefox 4, the [`&lt;percentage&gt;`](https://developer.mozilla.org/docs/Web/CSS/percentage) was relative to the width of the box even when specifying the radius for a height. This implied that `-moz-border-radius-bottomright` was always drawing an arc of circle, and never an ellipse, when followed by a single value."
                 }
               ],
               "firefox_android": "mirror",
@@ -165,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-bottom-right-radius.json b/css/properties/border-bottom-right-radius.json
index 0f45975044fde8..42fede91d04d3f 100644
--- a/css/properties/border-bottom-right-radius.json
+++ b/css/properties/border-bottom-right-radius.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-bottom-right-radius",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-radius",
+          "tags": [
+            "web-features:border-radius"
+          ],
           "support": {
             "chrome": [
               {
@@ -28,7 +31,7 @@
             "firefox": [
               {
                 "version_added": "4",
-                "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if <code>border-style</code> was solid. This has been fixed in Firefox 50."
+                "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50."
               },
               {
                 "prefix": "-webkit-",
@@ -82,7 +85,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,6 +97,9 @@
         "elliptical_corners": {
           "__compat": {
             "description": "Elliptical corners",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -120,7 +127,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,6 +140,9 @@
         "percentages": {
           "__compat": {
             "description": "Percentages",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -148,7 +159,7 @@
                   "version_added": "1",
                   "version_removed": "4",
                   "partial_implementation": true,
-                  "notes": "Before Firefox 4, the <a href='https://developer.mozilla.org/docs/Web/CSS/percentage'><code>&lt;percentage&gt;</code></a> was relative to the width of the box even when specifying the radius for a height. This implied that <code>-moz-border-radius-bottomright</code> was always drawing an arc of circle, and never an ellipse, when followed by a single value."
+                  "notes": "Before Firefox 4, the [`&lt;percentage&gt;`](https://developer.mozilla.org/docs/Web/CSS/percentage) was relative to the width of the box even when specifying the radius for a height. This implied that `-moz-border-radius-bottomright` was always drawing an arc of circle, and never an ellipse, when followed by a single value."
                 }
               ],
               "firefox_android": "mirror",
@@ -165,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-bottom-style.json b/css/properties/border-bottom-style.json
index 9b32f25809f8ff..586dfc206543b4 100644
--- a/css/properties/border-bottom-style.json
+++ b/css/properties/border-bottom-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-bottom-style",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-style",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 50, border styles of rounded corners (with <a href='https://developer.mozilla.org/docs/Web/CSS/border-radius'><code>border-radius</code></a>) were always rendered as if <code>border-bottom-style</code> was <code>solid</code>. This has been fixed in Firefox 50."
+              "notes": "Before Firefox 50, border styles of rounded corners (with [`border-radius`](https://developer.mozilla.org/docs/Web/CSS/border-radius)) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-bottom-width.json b/css/properties/border-bottom-width.json
index b53785e0440de4..4c2afe11cd6f6e 100644
--- a/css/properties/border-bottom-width.json
+++ b/css/properties/border-bottom-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-bottom-width",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-width",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-bottom.json b/css/properties/border-bottom.json
index 55d041a7a24429..1f0470502db7fe 100644
--- a/css/properties/border-bottom.json
+++ b/css/properties/border-bottom.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-bottom",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-shorthands",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-collapse.json b/css/properties/border-collapse.json
index 7d521e642565e4..5bd246dfd424af 100644
--- a/css/properties/border-collapse.json
+++ b/css/properties/border-collapse.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-collapse",
           "spec_url": "https://drafts.csswg.org/css2/#propdef-border-collapse",
+          "tags": [
+            "web-features:table"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,13 +39,84 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "collapse": {
+          "__compat": {
+            "tags": [
+              "web-features:table"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "≤80"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "≤72"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "≤13.1"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "separate": {
+          "__compat": {
+            "tags": [
+              "web-features:table"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "≤80"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "≤72"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "≤13.1"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/css/properties/border-color.json b/css/properties/border-color.json
index ccddfe0b5d16df..965e55ba44e83a 100644
--- a/css/properties/border-color.json
+++ b/css/properties/border-color.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-logical/#logical-shorthand-keyword",
             "https://drafts.csswg.org/css-backgrounds/#border-color"
           ],
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -37,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-end-end-radius.json b/css/properties/border-end-end-radius.json
index 460902c05c3c5e..c81cb9ef736047 100644
--- a/css/properties/border-end-end-radius.json
+++ b/css/properties/border-end-end-radius.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-end-end-radius",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-radius-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-end-start-radius.json b/css/properties/border-end-start-radius.json
index 69b7073546ba3e..640cd782213618 100644
--- a/css/properties/border-end-start-radius.json
+++ b/css/properties/border-end-start-radius.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-end-start-radius",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-radius-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-image-outset.json b/css/properties/border-image-outset.json
index 881f556ed2f154..5c482ba42acdcf 100644
--- a/css/properties/border-image-outset.json
+++ b/css/properties/border-image-outset.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-image-repeat.json b/css/properties/border-image-repeat.json
index 14e62d81f36565..acfedb01fd7209 100644
--- a/css/properties/border-image-repeat.json
+++ b/css/properties/border-image-repeat.json
@@ -33,7 +33,8 @@
               "version_added": "9.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +45,9 @@
         "repeat": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-border-image-repeat-repeat",
+            "tags": [
+              "web-features:border-image"
+            ],
             "support": {
               "chrome": {
                 "version_added": "15"
@@ -69,7 +73,8 @@
                 "version_added": "9.3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -145,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -157,6 +164,9 @@
         "stretch": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-border-image-repeat-stretch",
+            "tags": [
+              "web-features:border-image"
+            ],
             "support": {
               "chrome": {
                 "version_added": "15"
@@ -182,7 +192,8 @@
                 "version_added": "9.3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-image-slice.json b/css/properties/border-image-slice.json
index 773e100adbc3d9..5e2246b3b5c1d6 100644
--- a/css/properties/border-image-slice.json
+++ b/css/properties/border-image-slice.json
@@ -19,10 +19,10 @@
             "firefox": {
               "version_added": "15",
               "notes": [
-                "Small SVGs are incorrectly stretched, because percentages in <a href='https://developer.mozilla.org/docs/Web/CSS/border-image-slice'><code>border-image-slice</code></a> are computed to integers instead of floats (<a href='https://bugzil.la/1284797'>bug 1284797</a>).",
-                "Until Firefox 47, SVGs without viewport were not sliced correctly (<a href='https://bugzil.la/619500'>bug 619500</a>).",
-                "From Firefox 48 until Firefox 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (<a href='https://bugzil.la/1264809'>bug 1264809</a>).",
-                "Until Firefox 57, an issue persisted for SVGs without viewport when <a href='https://wiki.mozilla.org/Electrolysis'>e10s</a> was disabled (<a href='https://bugzil.la/1290782'>bug 1290782</a>)."
+                "Small SVGs are incorrectly stretched, because percentages in [`border-image-slice`](https://developer.mozilla.org/docs/Web/CSS/border-image-slice) are computed to integers instead of floats ([bug 1284797](https://bugzil.la/1284797)).",
+                "Until Firefox 47, SVGs without viewport were not sliced correctly ([bug 619500](https://bugzil.la/619500)).",
+                "From Firefox 48 until Firefox 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched ([bug 1264809](https://bugzil.la/1264809)).",
+                "Until Firefox 57, an issue persisted for SVGs without viewport when [e10s](https://wiki.mozilla.org/Electrolysis) was disabled ([bug 1290782](https://bugzil.la/1290782))."
               ]
             },
             "firefox_android": "mirror",
@@ -45,7 +45,8 @@
                 "prefix": "-webkit-",
                 "version_added": "4"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-image-source.json b/css/properties/border-image-source.json
index 20feedd475efa9..0f19a7b0159071 100644
--- a/css/properties/border-image-source.json
+++ b/css/properties/border-image-source.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-image-width.json b/css/properties/border-image-width.json
index dbd0f314002614..8d661b87784aa1 100644
--- a/css/properties/border-image-width.json
+++ b/css/properties/border-image-width.json
@@ -10,13 +10,13 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "15",
-              "notes": "Before Chrome 112, a border image's absolute or percentage length width may not take precedence over a narrower <code>border-width</code> (<a href='https://crbug.com/767352'>bug 767352</a>)."
+              "version_added": "16",
+              "notes": "Before Chrome 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` ([bug 40541033](https://crbug.com/40541033))."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Before Edge 112, a border image's absolute or percentage length width may not take precedence over a narrower <code>border-width</code> (<a href='https://crbug.com/767352'>bug 767352</a>)."
+              "notes": "Before Edge 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` ([bug 40541033](https://crbug.com/40541033))."
             },
             "firefox": {
               "version_added": "13"
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,16 +45,19 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-border-image-width-auto",
+            "tags": [
+              "web-features:border-image"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "16"
               },
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12"
               },
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "15"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -63,11 +67,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "6"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-image.json b/css/properties/border-image.json
index 92ebdca2d9ddcf..554615e9789b7f 100644
--- a/css/properties/border-image.json
+++ b/css/properties/border-image.json
@@ -12,7 +12,7 @@
             "chrome": [
               {
                 "version_added": "16",
-                "notes": "Before Chrome 112, a border image's absolute or percentage length width may not take precedence over a narrower <code>border-width</code> (<a href='https://crbug.com/767352'>bug 767352</a>)."
+                "notes": "Before Chrome 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` ([bug 40541033](https://crbug.com/40541033))."
               },
               {
                 "prefix": "-webkit-",
@@ -23,7 +23,7 @@
             "edge": [
               {
                 "version_added": "12",
-                "notes": "Before Edge 112, a border image's absolute or percentage length width may not take precedence over a narrower <code>border-width</code> (<a href='https://crbug.com/767352'>bug 767352</a>)."
+                "notes": "Before Edge 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` ([bug 40541033](https://crbug.com/40541033))."
               },
               {
                 "prefix": "-webkit-",
@@ -34,10 +34,10 @@
               {
                 "version_added": "15",
                 "notes": [
-                  "Small SVGs are incorrectly stretched, because percentages in <a href='https://developer.mozilla.org/docs/Web/CSS/border-image-slice'><code>border-image-slice</code></a> are computed to integers instead of floats (<a href='https://bugzil.la/1284797'>bug 1284797</a>).",
-                  "Until Firefox 47, SVGs without viewport were not sliced correctly (<a href='https://bugzil.la/619500'>bug 619500</a>).",
-                  "From Firefox 48 until Firefox 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (<a href='https://bugzil.la/1264809'>bug 1264809</a>).",
-                  "Until Firefox 57, an issue persisted for SVGs without viewport when <a href='https://wiki.mozilla.org/Electrolysis'>e10s</a> was disabled (<a href='https://bugzil.la/1290782'>bug 1290782</a>)."
+                  "Small SVGs are incorrectly stretched, because percentages in [`border-image-slice`](https://developer.mozilla.org/docs/Web/CSS/border-image-slice) are computed to integers instead of floats ([bug 1284797](https://bugzil.la/1284797)).",
+                  "Until Firefox 47, SVGs without viewport were not sliced correctly ([bug 619500](https://bugzil.la/619500)).",
+                  "From Firefox 48 until Firefox 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched ([bug 1264809](https://bugzil.la/1264809)).",
+                  "Until Firefox 57, an issue persisted for SVGs without viewport when [e10s](https://wiki.mozilla.org/Electrolysis) was disabled ([bug 1290782](https://bugzil.la/1290782))."
                 ]
               },
               {
@@ -54,7 +54,7 @@
             "opera": [
               {
                 "version_added": "11",
-                "notes": "Before Opera 98, a border image's absolute or percentage length width may not take precedence over a narrower <code>border-width</code> (<a href='https://crbug.com/767352'>bug 767352</a>)."
+                "notes": "Before Opera 98, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` ([bug 40541033](https://crbug.com/40541033))."
               },
               {
                 "prefix": "-o-",
@@ -65,7 +65,7 @@
             "opera_android": [
               {
                 "version_added": "11",
-                "notes": "A border image's absolute or percentage length width may not take precedence over a narrower <code>border-width</code> (<a href='https://crbug.com/767352'>bug 767352</a>)."
+                "notes": "A border image's absolute or percentage length width may not take precedence over a narrower `border-width` ([bug 40541033](https://crbug.com/40541033))."
               },
               {
                 "prefix": "-o-",
@@ -95,13 +95,14 @@
             "webview_android": [
               {
                 "version_added": "4.4",
-                "notes": "Before WebView 112, a border image's absolute or percentage length width may not take precedence over a narrower <code>border-width</code> (<a href='https://crbug.com/767352'>bug 767352</a>)."
+                "notes": "Before WebView 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` ([bug 40541033](https://crbug.com/40541033))."
               },
               {
                 "prefix": "-webkit-",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,7 +138,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -148,7 +150,7 @@
         },
         "gradient": {
           "__compat": {
-            "description": "<code>&lt;gradient&gt;</code>",
+            "description": "`&lt;gradient&gt;`",
             "tags": [
               "web-features:border-image"
             ],
@@ -175,7 +177,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -186,7 +189,7 @@
         },
         "optional_border_image_slice": {
           "__compat": {
-            "description": "optional <code>&lt;border-image-slice&gt;</code>",
+            "description": "optional `&lt;border-image-slice&gt;`",
             "tags": [
               "web-features:border-image"
             ],
@@ -213,7 +216,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-inline-color.json b/css/properties/border-inline-color.json
index d85d6bcc2d2f91..508fcd58ab1076 100644
--- a/css/properties/border-inline-color.json
+++ b/css/properties/border-inline-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-color",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-border-inline-color",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-end-color.json b/css/properties/border-inline-end-color.json
index a64ee07fde450b..5a581211e59cd0 100644
--- a/css/properties/border-inline-end-color.json
+++ b/css/properties/border-inline-end-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-end-color",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-color",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-end-style.json b/css/properties/border-inline-end-style.json
index f1a495348ce3cb..f4ca95a5ccb255 100644
--- a/css/properties/border-inline-end-style.json
+++ b/css/properties/border-inline-end-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-end-style",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-style",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-end-width.json b/css/properties/border-inline-end-width.json
index 80699c8212c023..f2f5e9af633bc4 100644
--- a/css/properties/border-inline-end-width.json
+++ b/css/properties/border-inline-end-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-end-width",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-width",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-end.json b/css/properties/border-inline-end.json
index 8542f8ec2b8c75..84974978feb9f9 100644
--- a/css/properties/border-inline-end.json
+++ b/css/properties/border-inline-end.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-end",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-shorthands",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-start-color.json b/css/properties/border-inline-start-color.json
index 5d127ce2aa07e8..7b105d2c35c5df 100644
--- a/css/properties/border-inline-start-color.json
+++ b/css/properties/border-inline-start-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-start-color",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-color",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-start-style.json b/css/properties/border-inline-start-style.json
index 68e8df5cbbad4e..fe0d1769dac57d 100644
--- a/css/properties/border-inline-start-style.json
+++ b/css/properties/border-inline-start-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-start-style",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-style",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-start-width.json b/css/properties/border-inline-start-width.json
index 743d2c459861ac..0a86b0115dcbe7 100644
--- a/css/properties/border-inline-start-width.json
+++ b/css/properties/border-inline-start-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-start-width",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-width",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-start.json b/css/properties/border-inline-start.json
index b29343c2f21463..8319211a893fe6 100644
--- a/css/properties/border-inline-start.json
+++ b/css/properties/border-inline-start.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-start",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-shorthands",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-style.json b/css/properties/border-inline-style.json
index 652df7d38f7b70..a290079ea2edef 100644
--- a/css/properties/border-inline-style.json
+++ b/css/properties/border-inline-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-style",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-border-inline-style",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline-width.json b/css/properties/border-inline-width.json
index b51395d9466988..f83b35c8e620b7 100644
--- a/css/properties/border-inline-width.json
+++ b/css/properties/border-inline-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline-width",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-border-inline-width",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-inline.json b/css/properties/border-inline.json
index 981f4a66a23708..bbf6c5c6bfc499 100644
--- a/css/properties/border-inline.json
+++ b/css/properties/border-inline.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-inline",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-border-inline",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-left-color.json b/css/properties/border-left-color.json
index ccb5af2b8786a9..abff795ed05a5f 100644
--- a/css/properties/border-left-color.json
+++ b/css/properties/border-left-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-left-color",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-color",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-left-style.json b/css/properties/border-left-style.json
index 38dbfd1a5d935c..9e306412107056 100644
--- a/css/properties/border-left-style.json
+++ b/css/properties/border-left-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-left-style",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-style",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,11 +18,11 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 50, border styles of rounded corners (with <a href='https://developer.mozilla.org/docs/Web/CSS/border-radius'><code>border-radius</code></a>) were always rendered as if <code>border-bottom-style</code> was <code>solid</code>. This has been fixed in Firefox 50."
+              "notes": "Before Firefox 50, border styles of rounded corners (with [`border-radius`](https://developer.mozilla.org/docs/Web/CSS/border-radius)) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50."
             },
             "firefox_android": {
               "version_added": "14",
-              "notes": "Before Firefox 50, border styles of rounded corners (with <a href='https://developer.mozilla.org/docs/Web/CSS/border-radius'><code>border-radius</code></a>) were always rendered as if <code>border-bottom-style</code> was <code>solid</code>. This has been fixed in Firefox 50."
+              "notes": "Before Firefox 50, border styles of rounded corners (with [`border-radius`](https://developer.mozilla.org/docs/Web/CSS/border-radius)) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50."
             },
             "ie": {
               "version_added": "5.5"
@@ -36,7 +39,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-left-width.json b/css/properties/border-left-width.json
index 2f108c868f46aa..b9ea052d9080f7 100644
--- a/css/properties/border-left-width.json
+++ b/css/properties/border-left-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-left-width",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-width",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-left.json b/css/properties/border-left.json
index eee5a99dacde54..fc4fd63bcd6470 100644
--- a/css/properties/border-left.json
+++ b/css/properties/border-left.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-left",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-shorthands",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-radius.json b/css/properties/border-radius.json
index f5e11df28835aa..8946f52ceab0cd 100644
--- a/css/properties/border-radius.json
+++ b/css/properties/border-radius.json
@@ -5,11 +5,14 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-radius",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-radius",
+          "tags": [
+            "web-features:border-radius"
+          ],
           "support": {
             "chrome": [
               {
                 "version_added": "4",
-                "notes": "Chrome ignores <code>border-radius</code> on <code>&lt;select&gt;</code> elements unless <code>-webkit-appearance</code> is overridden to an appropriate value."
+                "notes": "Chrome ignores `border-radius` on `&lt;select&gt;` elements unless `-webkit-appearance` is overridden to an appropriate value."
               },
               {
                 "prefix": "-webkit-",
@@ -32,8 +35,8 @@
               {
                 "version_added": "4",
                 "notes": [
-                  "Before Firefox 50, border styles of rounded corners (with <code>border-radius</code>) were always rendered as if <code>border-style</code> was <code>solid</code>. This has been fixed in Firefox 50.",
-                  "To conform to the CSS3 standard, Firefox 4 changes the handling of <a href='https://developer.mozilla.org/docs/Web/CSS/percentage'><code>&lt;percentage&gt;</code></a> values to match the specification. You can specify an ellipse as a border on an arbitrary sized element with <code>border-radius: 50%;</code>. Firefox 4 also makes rounded corners clip content and images if <a href='https://developer.mozilla.org/docs/Web/CSS/overflow'><code>overflow</code></a><code>: visible</code> is not set."
+                  "Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-style` was `solid`. This has been fixed in Firefox 50.",
+                  "To conform to the CSS3 standard, Firefox 4 changes the handling of [`&lt;percentage&gt;`](https://developer.mozilla.org/docs/Web/CSS/percentage) values to match the specification. You can specify an ellipse as a border on an arbitrary sized element with `border-radius: 50%;`. Firefox 4 also makes rounded corners clip content and images if [`overflow`](https://developer.mozilla.org/docs/Web/CSS/overflow)`: visible` is not set."
                 ]
               },
               {
@@ -45,7 +48,7 @@
             "firefox_android": [
               {
                 "version_added": "4",
-                "notes": "Before Firefox 50, border styles of rounded corners (with <code>border-radius</code>) were always rendered as if <code>border-style</code> was <code>solid</code>. This has been fixed in Firefox 50."
+                "notes": "Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-style` was `solid`. This has been fixed in Firefox 50."
               },
               {
                 "prefix": "-moz-",
@@ -59,7 +62,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "10.5",
-              "notes": "Before Opera 11.60, replaced elements with <code>border-radius</code> do not have rounded corners."
+              "notes": "Before Opera 11.60, replaced elements with `border-radius` do not have rounded corners."
             },
             "opera_android": {
               "version_added": "11"
@@ -67,7 +70,7 @@
             "safari": [
               {
                 "version_added": "5",
-                "notes": "Safari ignores <code>border-radius</code> on <code>&lt;select&gt;</code> elements unless <code>-webkit-appearance</code> is overridden to an appropriate value."
+                "notes": "Safari ignores `border-radius` on `&lt;select&gt;` elements unless `-webkit-appearance` is overridden to an appropriate value."
               },
               {
                 "prefix": "-webkit-",
@@ -77,7 +80,7 @@
             "safari_ios": [
               {
                 "version_added": "4.2",
-                "notes": "Safari ignores <code>border-radius</code> on <code>&lt;select&gt;</code> elements unless <code>-webkit-appearance</code> is overridden to an appropriate value."
+                "notes": "Safari ignores `border-radius` on `&lt;select&gt;` elements unless `-webkit-appearance` is overridden to an appropriate value."
               },
               {
                 "prefix": "-webkit-",
@@ -93,7 +96,8 @@
                 "prefix": "-webkit-",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,10 +108,13 @@
         "elliptical_borders": {
           "__compat": {
             "description": "Elliptical borders",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1",
-                "notes": "Before Chrome 4, the slash <code>/</code> notation is unsupported. If two values are specified, then an elliptical border is drawn on all four corners. <code>-webkit-border-radius: 40px 10px;</code> is equivalent to <code>border-radius: 40px / 10px;</code>."
+                "notes": "Before Chrome 4, the slash `/` notation is unsupported. If two values are specified, then an elliptical border is drawn on all four corners. `-webkit-border-radius: 40px 10px;` is equivalent to `border-radius: 40px / 10px;`."
               },
               "chrome_android": {
                 "version_added": "18"
@@ -131,13 +138,14 @@
               },
               "safari": {
                 "version_added": "3",
-                "notes": "Before Safari 5, the slash <code>/</code> notation is unsupported. If two values are specified, then an elliptical border is drawn on all four corners. <code>-webkit-border-radius: 40px 10px;</code> is equivalent to <code>border-radius: 40px / 10px;</code>."
+                "notes": "Before Safari 5, the slash `/` notation is unsupported. If two values are specified, then an elliptical border is drawn on all four corners. `-webkit-border-radius: 40px 10px;` is equivalent to `border-radius: 40px / 10px;`."
               },
               "safari_ios": {
                 "version_added": "4.2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -149,6 +157,9 @@
         "percentages": {
           "__compat": {
             "description": "Percentages",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "8"
@@ -159,7 +170,7 @@
               },
               "firefox": {
                 "version_added": "4",
-                "notes": "Before Firefox 4, <code>&lt;percentage&gt;</code> values are implemented in a non-standard way. Both horizontal and vertical radii were relative to the width of the border box."
+                "notes": "Before Firefox 4, `&lt;percentage&gt;` values are implemented in a non-standard way. Both horizontal and vertical radii were relative to the width of the border box."
               },
               "firefox_android": {
                 "version_added": "4"
@@ -170,7 +181,7 @@
               "oculus": "mirror",
               "opera": {
                 "version_added": "11.5",
-                "notes": "Before Opera 11.5, the implementation of <code>&lt;percentage&gt;</code> values was buggy."
+                "notes": "Before Opera 11.5, the implementation of `&lt;percentage&gt;` values was buggy."
               },
               "opera_android": {
                 "version_added": "11.5"
@@ -180,7 +191,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -192,6 +204,9 @@
         "4_values_for_4_corners": {
           "__compat": {
             "description": "4 values for 4 corners",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -219,7 +234,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-right-color.json b/css/properties/border-right-color.json
index 2bc3dd85200c88..b094feabd9ba82 100644
--- a/css/properties/border-right-color.json
+++ b/css/properties/border-right-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-right-color",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-color",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-right-style.json b/css/properties/border-right-style.json
index ab281408cc3a93..cf78e4ce62fc35 100644
--- a/css/properties/border-right-style.json
+++ b/css/properties/border-right-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-right-style",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-style",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,11 +18,11 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 50, border styles of rounded corners (with <a href='https://developer.mozilla.org/docs/Web/CSS/border-radius'><code>border-radius</code></a>) were always rendered as if <code>border-bottom-style</code> was <code>solid</code>. This has been fixed in Firefox 50."
+              "notes": "Before Firefox 50, border styles of rounded corners (with [`border-radius`](https://developer.mozilla.org/docs/Web/CSS/border-radius)) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50."
             },
             "firefox_android": {
               "version_added": "14",
-              "notes": "Before Firefox 50, border styles of rounded corners (with <a href='https://developer.mozilla.org/docs/Web/CSS/border-radius'><code>border-radius</code></a>) were always rendered as if <code>border-bottom-style</code> was <code>solid</code>. This has been fixed in Firefox 50."
+              "notes": "Before Firefox 50, border styles of rounded corners (with [`border-radius`](https://developer.mozilla.org/docs/Web/CSS/border-radius)) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50."
             },
             "ie": {
               "version_added": "5.5"
@@ -34,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-right-width.json b/css/properties/border-right-width.json
index c5b76ee4cf50ba..6392d75ebd2290 100644
--- a/css/properties/border-right-width.json
+++ b/css/properties/border-right-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-right-width",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-width",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-right.json b/css/properties/border-right.json
index ca9f612dabf639..79932f776ec82e 100644
--- a/css/properties/border-right.json
+++ b/css/properties/border-right.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-right",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-shorthands",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-spacing.json b/css/properties/border-spacing.json
index 9a8707565b7495..f1dab5de2eea53 100644
--- a/css/properties/border-spacing.json
+++ b/css/properties/border-spacing.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-spacing",
           "spec_url": "https://drafts.csswg.org/css2/#separated-borders",
+          "tags": [
+            "web-features:table"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-start-end-radius.json b/css/properties/border-start-end-radius.json
index f35e46a91473ef..c506204a48f3d9 100644
--- a/css/properties/border-start-end-radius.json
+++ b/css/properties/border-start-end-radius.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-start-end-radius",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-radius-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-start-start-radius.json b/css/properties/border-start-start-radius.json
index 6904d9b82bd79f..509ac7f4367312 100644
--- a/css/properties/border-start-start-radius.json
+++ b/css/properties/border-start-start-radius.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-start-start-radius",
           "spec_url": "https://drafts.csswg.org/css-logical/#border-radius-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-style.json b/css/properties/border-style.json
index 3d7348585ca288..b1d50acdf3781c 100644
--- a/css/properties/border-style.json
+++ b/css/properties/border-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-style",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-style",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if <code>border-style</code> was solid. This has been fixed in Firefox 50."
+              "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         "dashed": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-dashed",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,6 +85,9 @@
         "dotted": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-dotted",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -100,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,6 +124,9 @@
         "double": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-double",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -135,7 +150,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -147,6 +163,9 @@
         "groove": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-groove",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -170,7 +189,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -182,6 +202,9 @@
         "hidden": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-hidden",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -205,7 +228,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -217,6 +241,9 @@
         "inset": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-inset",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -240,7 +267,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -252,6 +280,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-none",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -275,7 +306,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -287,6 +319,9 @@
         "outset": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-outset",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -310,7 +345,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -322,6 +358,9 @@
         "ridge": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-ridge",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -345,7 +384,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -357,6 +397,9 @@
         "solid": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds/#valdef-line-style-solid",
+            "tags": [
+              "web-features:borders"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -380,7 +423,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-top-color.json b/css/properties/border-top-color.json
index 1a8bdf931a34f7..18ae62395f42d4 100644
--- a/css/properties/border-top-color.json
+++ b/css/properties/border-top-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-top-color",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-color",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-top-left-radius.json b/css/properties/border-top-left-radius.json
index 5e48fe751031c5..45c73adb814d7a 100644
--- a/css/properties/border-top-left-radius.json
+++ b/css/properties/border-top-left-radius.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-top-left-radius",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-radius",
+          "tags": [
+            "web-features:border-radius"
+          ],
           "support": {
             "chrome": [
               {
@@ -28,7 +31,7 @@
             "firefox": [
               {
                 "version_added": "4",
-                "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if <code>border-style</code> was solid. This has been fixed in Firefox 50."
+                "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50."
               },
               {
                 "prefix": "-webkit-",
@@ -82,7 +85,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,6 +97,9 @@
         "elliptical_corners": {
           "__compat": {
             "description": "Elliptical corners",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -120,7 +127,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,6 +140,9 @@
         "percentages": {
           "__compat": {
             "description": "Percentages",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -148,7 +159,7 @@
                   "version_added": "1",
                   "version_removed": "4",
                   "partial_implementation": true,
-                  "notes": "Before Firefox 4, the <a href='https://developer.mozilla.org/docs/Web/CSS/percentage'><code>&lt;percentage&gt;</code></a> was relative to the width of the box even when specifying the radius for a height. This implied that <code>-moz-border-radius-bottomright</code> was always drawing an arc of circle, and never an ellipse, when followed by a single value."
+                  "notes": "Before Firefox 4, the [`&lt;percentage&gt;`](https://developer.mozilla.org/docs/Web/CSS/percentage) was relative to the width of the box even when specifying the radius for a height. This implied that `-moz-border-radius-bottomright` was always drawing an arc of circle, and never an ellipse, when followed by a single value."
                 }
               ],
               "firefox_android": "mirror",
@@ -165,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-top-right-radius.json b/css/properties/border-top-right-radius.json
index fa16e7d0e1c195..c13cc140696aeb 100644
--- a/css/properties/border-top-right-radius.json
+++ b/css/properties/border-top-right-radius.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-top-right-radius",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-radius",
+          "tags": [
+            "web-features:border-radius"
+          ],
           "support": {
             "chrome": [
               {
@@ -28,7 +31,7 @@
             "firefox": [
               {
                 "version_added": "4",
-                "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if <code>border-style</code> was solid. This has been fixed in Firefox 50."
+                "notes": "Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50."
               },
               {
                 "prefix": "-webkit-",
@@ -82,7 +85,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,6 +97,9 @@
         "elliptical_corners": {
           "__compat": {
             "description": "Elliptical corners",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -120,7 +127,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,6 +140,9 @@
         "percentages": {
           "__compat": {
             "description": "Percentages",
+            "tags": [
+              "web-features:border-radius"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -148,7 +159,7 @@
                   "version_added": "1",
                   "version_removed": "4",
                   "partial_implementation": true,
-                  "notes": "Before Firefox 4, the <a href='https://developer.mozilla.org/docs/Web/CSS/percentage'><code>&lt;percentage&gt;</code></a> was relative to the width of the box even when specifying the radius for a height. This implied that <code>-moz-border-radius-bottomright</code> was always drawing an arc of circle, and never an ellipse, when followed by a single value."
+                  "notes": "Before Firefox 4, the [`&lt;percentage&gt;`](https://developer.mozilla.org/docs/Web/CSS/percentage) was relative to the width of the box even when specifying the radius for a height. This implied that `-moz-border-radius-bottomright` was always drawing an arc of circle, and never an ellipse, when followed by a single value."
                 }
               ],
               "firefox_android": "mirror",
@@ -165,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/border-top-style.json b/css/properties/border-top-style.json
index 4b5aaa7bd074fe..63bb6e37b29f58 100644
--- a/css/properties/border-top-style.json
+++ b/css/properties/border-top-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-top-style",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-style",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 50, border styles of rounded corners (with <a href='https://developer.mozilla.org/docs/Web/CSS/border-radius'><code>border-radius</code></a>) were always rendered as if <code>border-top-style</code> was <code>solid</code>. This has been fixed in Firefox 50."
+              "notes": "Before Firefox 50, border styles of rounded corners (with [`border-radius`](https://developer.mozilla.org/docs/Web/CSS/border-radius)) were always rendered as if `border-top-style` was `solid`. This has been fixed in Firefox 50."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-top-width.json b/css/properties/border-top-width.json
index ec404caaef6f1d..22784614a77958 100644
--- a/css/properties/border-top-width.json
+++ b/css/properties/border-top-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-top-width",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-width",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-top.json b/css/properties/border-top.json
index 5ad5e6e5d3c33a..337e88bd4173f1 100644
--- a/css/properties/border-top.json
+++ b/css/properties/border-top.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-top",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#border-shorthands",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border-width.json b/css/properties/border-width.json
index bc0573a2a61a69..d1117d79cb2abc 100644
--- a/css/properties/border-width.json
+++ b/css/properties/border-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border-width",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#the-border-width",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,7 +39,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/border.json b/css/properties/border.json
index 4e2588b6e3ea75..02a50c9da65d30 100644
--- a/css/properties/border.json
+++ b/css/properties/border.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/border",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#propdef-border",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/bottom.json b/css/properties/bottom.json
index bdb0e6c06c78e4..cf64748199dd09 100644
--- a/css/properties/bottom.json
+++ b/css/properties/bottom.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/bottom",
           "spec_url": "https://drafts.csswg.org/css-position/#insets",
+          "tags": [
+            "web-features:physical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -19,7 +22,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5",
-              "notes": "In Internet Explorer versions before 7, when both <code>top</code> and <code>bottom</code> are specified, the element position is overconstrained and the <code>top</code> property has precedence; the computed value of <code>bottom</code> is set to <code>-top</code>, while its specified value is ignored."
+              "notes": "In Internet Explorer versions before 7, when both `top` and `bottom` are specified, the element position is overconstrained and the `top` property has precedence; the computed value of `bottom` is set to `-top`, while its specified value is ignored."
             },
             "oculus": "mirror",
             "opera": {
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,7 +45,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -68,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -80,6 +85,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-3/#valdef-top-auto",
+            "tags": [
+              "web-features:physical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/box-align.json b/css/properties/box-align.json
index 390007d47b967f..4823612638804b 100644
--- a/css/properties/box-align.json
+++ b/css/properties/box-align.json
@@ -47,7 +47,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/box-decoration-break.json b/css/properties/box-decoration-break.json
index 2c9c2474e7b68a..2c2469ed5c9264 100644
--- a/css/properties/box-decoration-break.json
+++ b/css/properties/box-decoration-break.json
@@ -5,12 +5,21 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/box-decoration-break",
           "spec_url": "https://drafts.csswg.org/css-break/#break-decoration",
+          "tags": [
+            "web-features:box-decoration-break"
+          ],
           "support": {
-            "chrome": {
-              "prefix": "-webkit-",
-              "version_added": "22",
-              "notes": "This property is only supported for inline elements."
-            },
+            "chrome": [
+              {
+                "version_added": "130"
+              },
+              {
+                "prefix": "-webkit-",
+                "version_added": "22",
+                "partial_implementation": true,
+                "notes": "This property is only supported for inline elements."
+              }
+            ],
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
@@ -22,6 +31,9 @@
             },
             "oculus": "mirror",
             "opera": [
+              {
+                "version_added": "115"
+              },
               {
                 "prefix": "-webkit-",
                 "version_added": "15"
@@ -32,6 +44,9 @@
               }
             ],
             "opera_android": [
+              {
+                "version_added": "86"
+              },
               {
                 "prefix": "-webkit-",
                 "version_added": "14"
@@ -44,11 +59,13 @@
             "safari": {
               "prefix": "-webkit-",
               "version_added": "7",
+              "partial_implementation": true,
               "notes": "This property is only supported for inline elements."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -59,10 +76,20 @@
         "clone": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-break/#valdef-box-decoration-break-clone",
+            "tags": [
+              "web-features:box-decoration-break"
+            ],
             "support": {
-              "chrome": {
-                "version_added": "22"
-              },
+              "chrome": [
+                {
+                  "version_added": "130"
+                },
+                {
+                  "version_added": "22",
+                  "partial_implementation": true,
+                  "notes": "This value was only supported with the -webkit- prefix."
+                }
+              ],
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
@@ -80,7 +107,10 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
@@ -92,10 +122,20 @@
         "slice": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-break/#valdef-box-decoration-break-slice",
+            "tags": [
+              "web-features:box-decoration-break"
+            ],
             "support": {
-              "chrome": {
-                "version_added": "22"
-              },
+              "chrome": [
+                {
+                  "version_added": "130"
+                },
+                {
+                  "version_added": "22",
+                  "partial_implementation": true,
+                  "notes": "This value was only supported with the -webkit- prefix."
+                }
+              ],
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
@@ -113,7 +153,10 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/box-direction.json b/css/properties/box-direction.json
index c9e2ccd7eaf6ca..6277f43ae10485 100644
--- a/css/properties/box-direction.json
+++ b/css/properties/box-direction.json
@@ -47,7 +47,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/box-flex-group.json b/css/properties/box-flex-group.json
index ab801f01387447..1ba441abc83d24 100644
--- a/css/properties/box-flex-group.json
+++ b/css/properties/box-flex-group.json
@@ -38,7 +38,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/box-flex.json b/css/properties/box-flex.json
index 789e7be516a48c..c1e0e2eed681bb 100644
--- a/css/properties/box-flex.json
+++ b/css/properties/box-flex.json
@@ -47,7 +47,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/box-lines.json b/css/properties/box-lines.json
index 8de86d5ce22fef..6e701ada023aea 100644
--- a/css/properties/box-lines.json
+++ b/css/properties/box-lines.json
@@ -38,7 +38,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/box-ordinal-group.json b/css/properties/box-ordinal-group.json
index 002bcb56805a55..3e8e3705f02e0a 100644
--- a/css/properties/box-ordinal-group.json
+++ b/css/properties/box-ordinal-group.json
@@ -47,7 +47,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/box-orient.json b/css/properties/box-orient.json
index 1714e4a6cf0a3a..210b1d23a920a8 100644
--- a/css/properties/box-orient.json
+++ b/css/properties/box-orient.json
@@ -47,7 +47,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/box-pack.json b/css/properties/box-pack.json
index 3e58088c57f251..8af521fe38d858 100644
--- a/css/properties/box-pack.json
+++ b/css/properties/box-pack.json
@@ -47,7 +47,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/box-shadow.json b/css/properties/box-shadow.json
index 543b8f61463cec..1e14616db8d92f 100644
--- a/css/properties/box-shadow.json
+++ b/css/properties/box-shadow.json
@@ -5,11 +5,14 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/box-shadow",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#box-shadow",
+          "tags": [
+            "web-features:box-shadow"
+          ],
           "support": {
             "chrome": [
               {
                 "version_added": "10",
-                "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a <code>width</code> of <code>100%</code>, then you'll see a scrollbar."
+                "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar."
               },
               {
                 "prefix": "-webkit-",
@@ -23,7 +26,7 @@
             "firefox": [
               {
                 "version_added": "4",
-                "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a <code>width</code> of <code>100%</code>, then you'll see a scrollbar."
+                "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar."
               },
               {
                 "prefix": "-webkit-",
@@ -39,20 +42,20 @@
             "ie": {
               "version_added": "9",
               "notes": [
-                "To use <code>box-shadow</code> in Internet Explorer 9 or later, you must set <a href='https://developer.mozilla.org/docs/Web/CSS/border-collapse'><code>border-collapse</code></a> to <code>separate</code>.",
-                "Since version 5.5, Internet Explorer supports Microsoft's <a href='https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/ms532985(v=vs.85)'>DropShadow</a> and <a href='https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/ms533086(v=vs.85)'>Shadow Filter</a>. You can use this proprietary extension to cast a drop shadow (though the syntax and the effect are different from CSS3)"
+                "To use `box-shadow` in Internet Explorer 9 or later, you must set [`border-collapse`](https://developer.mozilla.org/docs/Web/CSS/border-collapse) to `separate`.",
+                "Since version 5.5, Internet Explorer supports Microsoft's [DropShadow](https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/ms532985(v=vs.85)) and [Shadow Filter](https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/ms533086(v=vs.85)). You can use this proprietary extension to cast a drop shadow (though the syntax and the effect are different from CSS3)"
               ]
             },
             "oculus": "mirror",
             "opera": {
               "version_added": "10.5",
-              "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a <code>width</code> of <code>100%</code>, then you'll see a scrollbar."
+              "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar."
             },
             "opera_android": "mirror",
             "safari": [
               {
                 "version_added": "5.1",
-                "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a <code>width</code> of <code>100%</code>, then you'll see a scrollbar."
+                "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar."
               },
               {
                 "prefix": "-webkit-",
@@ -62,7 +65,7 @@
             "safari_ios": [
               {
                 "version_added": "5",
-                "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a <code>width</code> of <code>100%</code>, then you'll see a scrollbar."
+                "notes": "Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar."
               },
               {
                 "prefix": "-webkit-",
@@ -70,7 +73,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -80,6 +84,9 @@
         },
         "inset": {
           "__compat": {
+            "tags": [
+              "web-features:box-shadow"
+            ],
             "support": {
               "chrome": [
                 {
@@ -109,8 +116,8 @@
                 "version_added": "9",
                 "partial_implementation": true,
                 "notes": [
-                  "To use <code>box-shadow</code> in Internet Explorer 9 or later, you must set <a href='https://developer.mozilla.org/docs/Web/CSS/border-collapse'><code>border-collapse</code></a> to <code>separate</code>.",
-                  "<code>inset</code> must be the last keyword in the declaration."
+                  "To use `box-shadow` in Internet Explorer 9 or later, you must set [`border-collapse`](https://developer.mozilla.org/docs/Web/CSS/border-collapse) to `separate`.",
+                  "`inset` must be the last keyword in the declaration."
                 ]
               },
               "oculus": "mirror",
@@ -129,7 +136,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -141,6 +149,9 @@
         "multiple_shadows": {
           "__compat": {
             "description": "Multiple shadows",
+            "tags": [
+              "web-features:box-shadow"
+            ],
             "support": {
               "chrome": [
                 {
@@ -168,7 +179,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "9",
-                "notes": "To use <code>box-shadow</code> in Internet Explorer 9 or later, you must set <a href='https://developer.mozilla.org/docs/Web/CSS/border-collapse'><code>border-collapse</code></a> to <code>separate</code>."
+                "notes": "To use `box-shadow` in Internet Explorer 9 or later, you must set [`border-collapse`](https://developer.mozilla.org/docs/Web/CSS/border-collapse) to `separate`."
               },
               "oculus": "mirror",
               "opera": {
@@ -194,7 +205,8 @@
                 }
               ],
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -206,6 +218,9 @@
         "spread_radius": {
           "__compat": {
             "description": "Spread radius",
+            "tags": [
+              "web-features:box-shadow"
+            ],
             "support": {
               "chrome": [
                 {
@@ -233,7 +248,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "9",
-                "notes": "To use <code>box-shadow</code> in Internet Explorer 9 or later, you must set <a href='https://developer.mozilla.org/docs/Web/CSS/border-collapse'><code>border-collapse</code></a> to <code>separate</code>."
+                "notes": "To use `box-shadow` in Internet Explorer 9 or later, you must set [`border-collapse`](https://developer.mozilla.org/docs/Web/CSS/border-collapse) to `separate`."
               },
               "oculus": "mirror",
               "opera": {
@@ -251,7 +266,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/box-sizing.json b/css/properties/box-sizing.json
index 1e3e0534ec8d56..d05e152385cdf0 100644
--- a/css/properties/box-sizing.json
+++ b/css/properties/box-sizing.json
@@ -5,11 +5,14 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/box-sizing",
           "spec_url": "https://drafts.csswg.org/css-sizing/#box-sizing",
+          "tags": [
+            "web-features:box-sizing"
+          ],
           "support": {
             "chrome": [
               {
                 "version_added": "10",
-                "notes": "<code>box-sizing</code> is not respected when the height is calculated from <a href='https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle'><code>window.getComputedStyle()</code></a>."
+                "notes": "`box-sizing` is not respected when the height is calculated from [`window.getComputedStyle()`](https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle)."
               },
               {
                 "prefix": "-webkit-",
@@ -37,13 +40,13 @@
               {
                 "prefix": "-moz-",
                 "version_added": "1",
-                "notes": "Before Firefox 23, <code>box-sizing</code> is not respected when the height is calculated from <a href='https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle'><code>window.getComputedStyle()</code></a>."
+                "notes": "Before Firefox 23, `box-sizing` is not respected when the height is calculated from [`window.getComputedStyle()`](https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle)."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "8",
-              "notes": "<code>box-sizing</code> is not respected when the height is calculated from <a href='https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle'><code>window.getComputedStyle()</code></a>."
+              "notes": "`box-sizing` is not respected when the height is calculated from [`window.getComputedStyle()`](https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle)."
             },
             "oculus": "mirror",
             "opera": {
@@ -72,13 +75,14 @@
             "webview_android": [
               {
                 "version_added": "4",
-                "notes": "<code>box-sizing</code> is not respected when the height is calculated from <a href='https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle'><code>window.getComputedStyle()</code></a>."
+                "notes": "`box-sizing` is not respected when the height is calculated from [`window.getComputedStyle()`](https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle)."
               },
               {
                 "prefix": "-webkit-",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +93,9 @@
         "border-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing/#valdef-box-sizing-border-box",
+            "tags": [
+              "web-features:box-sizing"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -112,7 +119,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -124,6 +132,9 @@
         "content-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing/#valdef-box-sizing-content-box",
+            "tags": [
+              "web-features:box-sizing"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -147,7 +158,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/break-after.json b/css/properties/break-after.json
index 4e9876be595043..7771e9eb2634e0 100644
--- a/css/properties/break-after.json
+++ b/css/properties/break-after.json
@@ -51,7 +51,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,6 +62,9 @@
         },
         "always": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -82,7 +86,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -93,14 +98,15 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -116,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -127,14 +134,15 @@
         },
         "avoid": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -150,7 +158,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -161,14 +170,15 @@
         },
         "avoid-column": {
           "__compat": {
+            "tags": [
+              "web-features:column-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -184,7 +194,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -195,14 +206,15 @@
         },
         "avoid-page": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -218,7 +230,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -229,14 +242,15 @@
         },
         "column": {
           "__compat": {
+            "tags": [
+              "web-features:column-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -252,7 +266,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -263,14 +278,15 @@
         },
         "left": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -286,7 +302,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -317,7 +334,7 @@
               "firefox": {
                 "version_added": "65",
                 "partial_implementation": true,
-                "notes": "Only supported in print mode. See <a href='https://bugzil.la/1675322'>bug 1675322</a>."
+                "notes": "Only supported in print mode. See [bug 1675322](https://bugzil.la/1675322)."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -347,7 +364,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -366,7 +384,7 @@
                 "firefox": {
                   "version_added": "65",
                   "partial_implementation": true,
-                  "notes": "Only supported in print mode. See <a href='https://bugzil.la/1675322'>bug 1675322</a>."
+                  "notes": "Only supported in print mode. See [bug 1675322](https://bugzil.la/1675322)."
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -380,7 +398,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -431,7 +450,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -490,7 +510,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -543,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -555,14 +577,15 @@
         },
         "page": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -578,7 +601,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -637,7 +661,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -676,7 +701,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "50"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -687,6 +713,9 @@
           },
           "avoid-page": {
             "__compat": {
+              "tags": [
+                "web-features:page-breaks"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "50"
@@ -713,7 +742,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -753,7 +783,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -764,11 +795,14 @@
           },
           "recto": {
             "__compat": {
-              "description": "<code>recto</code> and <code>verso</code>",
+              "description": "`recto` and `verso`",
+              "tags": [
+                "web-features:page-breaks"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/538475"
+                  "impl_url": "https://crbug.com/40438447"
                 },
                 "chrome_android": "mirror",
                 "edge": "mirror",
@@ -787,7 +821,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -799,14 +834,15 @@
         },
         "recto": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -822,7 +858,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -833,14 +870,15 @@
         },
         "right": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -856,7 +894,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -867,14 +906,15 @@
         },
         "verso": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -890,7 +930,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/break-before.json b/css/properties/break-before.json
index a83d831c8d51bf..09e858c8ec55d9 100644
--- a/css/properties/break-before.json
+++ b/css/properties/break-before.json
@@ -51,7 +51,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,6 +62,9 @@
         },
         "always": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -82,7 +86,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -93,14 +98,15 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -116,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -127,14 +134,15 @@
         },
         "avoid": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -150,7 +158,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -161,14 +170,15 @@
         },
         "avoid-column": {
           "__compat": {
+            "tags": [
+              "web-features:column-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -184,7 +194,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -195,14 +206,15 @@
         },
         "avoid-page": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -218,7 +230,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -229,14 +242,15 @@
         },
         "column": {
           "__compat": {
+            "tags": [
+              "web-features:column-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -252,7 +266,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -263,14 +278,15 @@
         },
         "left": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -286,7 +302,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -317,7 +334,7 @@
               "firefox": {
                 "version_added": "65",
                 "partial_implementation": true,
-                "notes": "Only supported in print mode. See <a href='https://bugzil.la/1675322'>bug 1675322</a>."
+                "notes": "Only supported in print mode. See [bug 1675322](https://bugzil.la/1675322)."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -347,7 +364,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -366,7 +384,7 @@
                 "firefox": {
                   "version_added": "65",
                   "partial_implementation": true,
-                  "notes": "Only supported in print mode. See <a href='https://bugzil.la/1675322'>bug 1675322</a>."
+                  "notes": "Only supported in print mode. See [bug 1675322](https://bugzil.la/1675322)."
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -380,7 +398,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -431,7 +450,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -490,7 +510,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -527,7 +548,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -539,14 +561,15 @@
         },
         "page": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -562,7 +585,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -621,7 +645,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -660,7 +685,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "50"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -671,7 +697,7 @@
           },
           "page": {
             "__compat": {
-              "description": "<code>page</code> and <code>avoid-page</code>",
+              "description": "`page` and `avoid-page`",
               "tags": [
                 "web-features:page-breaks"
               ],
@@ -701,7 +727,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -712,11 +739,14 @@
           },
           "recto": {
             "__compat": {
-              "description": "<code>recto</code> and <code>verso</code>",
+              "description": "`recto` and `verso`",
+              "tags": [
+                "web-features:page-breaks"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/538475"
+                  "impl_url": "https://crbug.com/40438447"
                 },
                 "chrome_android": "mirror",
                 "edge": "mirror",
@@ -735,7 +765,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -747,14 +778,15 @@
         },
         "recto": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -770,7 +802,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -781,14 +814,15 @@
         },
         "right": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -804,7 +838,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -815,14 +850,15 @@
         },
         "verso": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": false
               },
@@ -838,7 +874,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/break-inside.json b/css/properties/break-inside.json
index 2a9e30b35178a8..b930cea636ce22 100644
--- a/css/properties/break-inside.json
+++ b/css/properties/break-inside.json
@@ -51,7 +51,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,14 +62,15 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -84,7 +86,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,14 +98,15 @@
         },
         "avoid": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -118,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,14 +134,15 @@
         },
         "avoid-column": {
           "__compat": {
+            "tags": [
+              "web-features:column-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "92"
               },
@@ -152,7 +158,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -163,14 +170,15 @@
         },
         "avoid-page": {
           "__compat": {
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "92"
               },
@@ -186,7 +194,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -245,7 +254,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -297,7 +307,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -357,7 +368,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -367,6 +379,9 @@
           },
           "avoid-page": {
             "__compat": {
+              "tags": [
+                "web-features:page-breaks"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -406,7 +421,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/css/properties/caption-side.json b/css/properties/caption-side.json
index 38d5b453da6b6c..7e77ae879b44ec 100644
--- a/css/properties/caption-side.json
+++ b/css/properties/caption-side.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css2/#propdef-caption-side",
             "https://drafts.csswg.org/css-logical/#caption-side"
           ],
+          "tags": [
+            "web-features:table"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,8 +45,47 @@
             "deprecated": false
           }
         },
+        "bottom": {
+          "__compat": {
+            "tags": [
+              "web-features:table"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "≤80"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "≤72"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "≤13.1"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "bottom-outside": {
           "__compat": {
+            "tags": [
+              "web-features:table"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -65,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -94,11 +138,13 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "preview"
+                "version_added": "≤13.1",
+                "version_removed": "17"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -127,11 +173,13 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "preview"
+                "version_added": "≤13.1",
+                "version_removed": "17"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,8 +188,47 @@
             }
           }
         },
+        "top": {
+          "__compat": {
+            "tags": [
+              "web-features:table"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "≤80"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "≤72"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "≤13.1"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "top-outside": {
           "__compat": {
+            "tags": [
+              "web-features:table"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -164,7 +251,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -175,7 +263,10 @@
         },
         "writing-mode_relative_values": {
           "__compat": {
-            "description": "<code>top</code> and <code>bottom</code> are relative to the <code>writing-mode</code> value",
+            "description": "`top` and `bottom` are relative to the `writing-mode` value",
+            "tags": [
+              "web-features:table"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -197,7 +288,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/caret-color.json b/css/properties/caret-color.json
index e33d3b1885afba..090e1eb04b1ec5 100644
--- a/css/properties/caret-color.json
+++ b/css/properties/caret-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/caret-color",
           "spec_url": "https://drafts.csswg.org/css-ui/#caret-color",
+          "tags": [
+            "web-features:caret-color"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/clear.json b/css/properties/clear.json
index 2d4412ab0910d6..1174c6cc0f0549 100644
--- a/css/properties/clear.json
+++ b/css/properties/clear.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css2/#propdef-clear",
             "https://drafts.csswg.org/css-logical/#float-clear"
           ],
+          "tags": [
+            "web-features:float-clear"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "both": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-clear-both",
+            "tags": [
+              "web-features:float-clear"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -81,6 +89,9 @@
         "inline-end": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-logical/#float-clear",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -102,7 +113,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,6 +126,9 @@
         "inline-start": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-logical/#float-clear",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -135,7 +150,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -147,6 +163,9 @@
         "left": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-clear-left",
+            "tags": [
+              "web-features:float-clear"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -170,7 +189,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -182,6 +202,9 @@
         "right": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-clear-right",
+            "tags": [
+              "web-features:float-clear"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -205,7 +228,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/clip-path.json b/css/properties/clip-path.json
index 19093fb2686a57..f4223fe64b265c 100644
--- a/css/properties/clip-path.json
+++ b/css/properties/clip-path.json
@@ -8,6 +8,9 @@
             "https://drafts.fxtf.org/css-masking/#the-clip-path",
             "https://drafts.csswg.org/css-shapes/#supported-basic-shapes"
           ],
+          "tags": [
+            "web-features:clip-path"
+          ],
           "support": {
             "chrome": [
               {
@@ -26,7 +29,7 @@
               {
                 "version_added": "12",
                 "partial_implementation": true,
-                "notes": "Only supports clip paths defined by <code>url()</code>."
+                "notes": "Only supports clip paths defined by `url()`."
               }
             ],
             "firefox": {
@@ -36,7 +39,7 @@
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "Only supports clip paths defined by <code>url()</code>."
+              "notes": "Only supports clip paths defined by `url()`."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -52,7 +55,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -62,7 +66,10 @@
         },
         "basic_shape": {
           "__compat": {
-            "description": "<code>&lt;basic-shape&gt;</code>",
+            "description": "`&lt;basic-shape&gt;`",
+            "tags": [
+              "web-features:clip-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -84,7 +91,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -96,6 +104,9 @@
         "fill-box": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-clip-path-fill-box",
+            "tags": [
+              "web-features:clip-path-boxes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "119"
@@ -104,7 +115,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "51",
-                "notes": "This value was supported before Firefox 51, but as an alias to <code>border-box</code>."
+                "notes": "This value was supported before Firefox 51, but as an alias to `border-box`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -118,7 +129,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -130,6 +142,9 @@
         "html_elements": {
           "__compat": {
             "description": "On HTML elements",
+            "tags": [
+              "web-features:clip-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -151,7 +166,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -163,6 +179,9 @@
         "is_animatable": {
           "__compat": {
             "description": "Is animatable",
+            "tags": [
+              "web-features:clip-path-animatable"
+            ],
             "support": {
               "chrome": {
                 "version_added": "55"
@@ -184,7 +203,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -195,7 +215,10 @@
         },
         "path": {
           "__compat": {
-            "description": "<code>path()</code>",
+            "description": "`path()`",
+            "tags": [
+              "web-features:clip-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "88"
@@ -231,7 +254,8 @@
                 }
               ],
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -243,6 +267,9 @@
         "stroke-box": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-clip-path-stroke-box",
+            "tags": [
+              "web-features:clip-path-boxes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "119"
@@ -251,7 +278,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "51",
-                "notes": "This value was supported before Firefox 51, but as an alias to <code>border-box</code>."
+                "notes": "This value was supported before Firefox 51, but as an alias to `border-box`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -265,7 +292,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -277,6 +305,9 @@
         "svg_elements": {
           "__compat": {
             "description": "On SVG elements",
+            "tags": [
+              "web-features:clip-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -300,7 +331,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -312,6 +344,9 @@
         "view-box": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-clip-path-view-box",
+            "tags": [
+              "web-features:clip-path-boxes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "119"
@@ -333,7 +368,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/clip-rule.json b/css/properties/clip-rule.json
index 59fec18ef9da02..125c17cb6a78ab 100644
--- a/css/properties/clip-rule.json
+++ b/css/properties/clip-rule.json
@@ -5,16 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/clip-rule",
           "spec_url": "https://drafts.fxtf.org/css-masking-1/#the-clip-rule",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "≤15"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "3.5"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -24,11 +25,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "≤5"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,14 +41,17 @@
         "evenodd": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking-1/#valdef-clip-rule-evenodd",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "≤15"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "3.5"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -56,11 +61,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "≤5"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,14 +78,17 @@
         "nonzero": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking-1/#valdef-clip-rule-nonzero",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "≤15"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "3.5"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -89,11 +98,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "≤5"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/clip.json b/css/properties/clip.json
index 7b2420624864d5..3d53e2a9ee7b7b 100644
--- a/css/properties/clip.json
+++ b/css/properties/clip.json
@@ -19,7 +19,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "4",
-              "notes": "Before Internet Explorer 7, Internet Explorer incorrectly interprets <code>clip: auto</code> as <code>clip: rect(auto, auto, auto, auto)</code>."
+              "notes": "Before Internet Explorer 7, Internet Explorer incorrectly interprets `clip: auto` as `clip: rect(auto, auto, auto, auto)`."
             },
             "oculus": "mirror",
             "opera": {
@@ -28,19 +28,52 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "1",
-              "notes": "Safari incorrectly interprets <code>clip: auto</code> as <code>clip: rect(auto, auto, auto, auto)</code>."
+              "notes": "Safari incorrectly interprets `clip: auto` as `clip: rect(auto, auto, auto, auto)`."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": true
           }
+        },
+        "auto": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": "≤80"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "≤72"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "≤13.1"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": true
+            }
+          }
         }
       }
     }
diff --git a/css/properties/color-adjust.json b/css/properties/color-adjust.json
index 7601123eadd04d..f90eb2ed69b54f 100644
--- a/css/properties/color-adjust.json
+++ b/css/properties/color-adjust.json
@@ -25,7 +25,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/color-interpolation-filters.json b/css/properties/color-interpolation-filters.json
index e41450ab3e2010..65a3eff926c09a 100644
--- a/css/properties/color-interpolation-filters.json
+++ b/css/properties/color-interpolation-filters.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color-interpolation-filters",
           "spec_url": "https://drafts.fxtf.org/filter-effects-1/#ColorInterpolationFiltersProperty",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "1"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "3"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -22,11 +25,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "3"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,14 +41,17 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/filter-effects-1/#valdef-color-interpolation-filters-auto",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "1"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "3"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -54,11 +61,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "3"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,14 +78,17 @@
         "linearRGB": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/filter-effects-1/#valdef-color-interpolation-filters-linearrgb",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "28"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "22"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -87,11 +98,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "9"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,14 +115,17 @@
         "sRGB": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/filter-effects-1/#valdef-color-interpolation-filters-srgb",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "28"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "22"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -120,11 +135,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "9"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/color-interpolation.json b/css/properties/color-interpolation.json
index 61c3e24d9a118d..16886154f4dde0 100644
--- a/css/properties/color-interpolation.json
+++ b/css/properties/color-interpolation.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color-interpolation",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#ColorInterpolation",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80",
@@ -12,11 +15,7 @@
               "notes": "Only the default value of `sRGB` is implemented"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80",
-              "partial_implementation": true,
-              "notes": "Only the default value of `sRGB` is implemented"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -34,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,7 +44,10 @@
         },
         "linearGradient": {
           "__compat": {
-            "description": "<code>linearGradient</code> value",
+            "description": "`linearGradient` value",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -66,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,15 +81,16 @@
         },
         "sRGB": {
           "__compat": {
-            "description": "<code>sRGB</code> value",
+            "description": "`sRGB` value",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -101,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/color-scheme.json b/css/properties/color-scheme.json
index f1e4f1f6d94762..bae3db26f846af 100644
--- a/css/properties/color-scheme.json
+++ b/css/properties/color-scheme.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,9 +38,117 @@
             "deprecated": false
           }
         },
+        "dark": {
+          "__compat": {
+            "tags": [
+              "web-features:color-scheme"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "81"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "96"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "13"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "light": {
+          "__compat": {
+            "tags": [
+              "web-features:color-scheme"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "81"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "96"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "13"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "normal": {
+          "__compat": {
+            "tags": [
+              "web-features:color-scheme"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "81"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "96"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "13"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "only_dark": {
           "__compat": {
-            "description": "<code>only dark</code> keyword",
+            "description": "`only dark` keyword",
             "tags": [
               "web-features:color-scheme"
             ],
@@ -70,7 +179,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -81,7 +191,7 @@
         },
         "only_light": {
           "__compat": {
-            "description": "<code>only light</code> keyword",
+            "description": "`only light` keyword",
             "tags": [
               "web-features:color-scheme"
             ],
@@ -112,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/color.json b/css/properties/color.json
index 20106630e3beb3..95a1fee887bd2d 100644
--- a/css/properties/color.json
+++ b/css/properties/color.json
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/column-count.json b/css/properties/column-count.json
index 67a9cd118a1a65..5372c91bf6fbf0 100644
--- a/css/properties/column-count.json
+++ b/css/properties/column-count.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/column-count",
           "spec_url": "https://drafts.csswg.org/css-multicol/#cc",
+          "tags": [
+            "web-features:multi-column"
+          ],
           "support": {
             "chrome": [
               {
@@ -33,7 +36,7 @@
                 "prefix": "-moz-",
                 "version_added": "1.5",
                 "version_removed": "74",
-                "notes": "Before version 37, multiple columns didn't work with <code>display: table-caption</code> elements."
+                "notes": "Before version 37, multiple columns didn't work with `display: table-caption` elements."
               }
             ],
             "firefox_android": "mirror",
@@ -54,7 +57,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -65,12 +69,17 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-multicol/#valdef-column-count-auto",
+            "tags": [
+              "web-features:multi-column"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
               "firefox": {
                 "version_added": "1.5"
               },
@@ -86,7 +95,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/column-fill.json b/css/properties/column-fill.json
index bdf4c9985db829..7ea09740d2e42b 100644
--- a/css/properties/column-fill.json
+++ b/css/properties/column-fill.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/column-fill",
           "spec_url": "https://drafts.csswg.org/css-multicol/#cf",
+          "tags": [
+            "web-features:column-fill"
+          ],
           "support": {
             "chrome": {
               "version_added": "50"
@@ -19,19 +22,11 @@
               },
               {
                 "prefix": "-moz-",
-                "version_added": "13",
+                "version_added": "17",
                 "version_removed": "74"
               }
             ],
-            "firefox_android": [
-              {
-                "version_added": "52"
-              },
-              {
-                "prefix": "-moz-",
-                "version_added": "14"
-              }
-            ],
+            "firefox_android": "mirror",
             "ie": {
               "version_added": "10"
             },
@@ -49,7 +44,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -60,6 +56,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-multicol/#valdef-column-fill-auto",
+            "tags": [
+              "web-features:column-fill"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -69,7 +68,7 @@
                 "version_added": "12"
               },
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "17"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -83,7 +82,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,6 +95,9 @@
         "balance": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-multicol/#valdef-column-fill-balance",
+            "tags": [
+              "web-features:column-fill"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -104,7 +107,7 @@
                 "version_added": "12"
               },
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "17"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -118,7 +121,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -126,40 +130,6 @@
               "deprecated": false
             }
           }
-        },
-        "balance-all": {
-          "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-multicol/#valdef-column-fill-balance-all",
-            "support": {
-              "chrome": {
-                "version_added": false,
-                "impl_url": "https://crbug.com/909596"
-              },
-              "chrome_android": "mirror",
-              "edge": "mirror",
-              "firefox": {
-                "version_added": false
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": false
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": false
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": true,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
         }
       }
     }
diff --git a/css/properties/column-gap.json b/css/properties/column-gap.json
index 535c51167e5209..0a5ddcde1177be 100644
--- a/css/properties/column-gap.json
+++ b/css/properties/column-gap.json
@@ -9,6 +9,9 @@
             "https://drafts.csswg.org/css-grid/#gutters",
             "https://drafts.csswg.org/css-multicol/#column-gap"
           ],
+          "tags": [
+            "web-features:multi-column"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -76,7 +80,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -151,7 +156,8 @@
                   "version_added": "6.0"
                 }
               ],
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -168,6 +174,9 @@
               "https://drafts.csswg.org/css-grid/#gutters",
               "https://drafts.csswg.org/css-multicol/#column-gap"
             ],
+            "tags": [
+              "web-features:multi-column"
+            ],
             "support": {
               "chrome": [
                 {
@@ -196,7 +205,7 @@
                   "prefix": "-moz-",
                   "version_added": "1.5",
                   "version_removed": "74",
-                  "notes": "Before Firefox 3, the default value for the <code>normal</code> keyword was <code>0</code> and not <code>1em</code>."
+                  "notes": "Before Firefox 3, the default value for the `normal` keyword was `0` and not `1em`."
                 }
               ],
               "firefox_android": [
@@ -257,7 +266,8 @@
                 }
               ],
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -267,7 +277,10 @@
           },
           "calc_values": {
             "__compat": {
-              "description": "<code>calc()</code> values",
+              "description": "`calc()` values",
+              "tags": [
+                "web-features:multi-column"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "66"
@@ -291,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -302,7 +316,10 @@
           },
           "percentage_values": {
             "__compat": {
-              "description": "<code>&lt;percentage&gt;</code> values",
+              "description": "`&lt;percentage&gt;` values",
+              "tags": [
+                "web-features:multi-column"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "66"
@@ -326,7 +343,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/css/properties/column-rule-color.json b/css/properties/column-rule-color.json
index 8fccf0bb93dfe2..f091fb38990e86 100644
--- a/css/properties/column-rule-color.json
+++ b/css/properties/column-rule-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/column-rule-color",
           "spec_url": "https://drafts.csswg.org/css-multicol/#crc",
+          "tags": [
+            "web-features:multi-column"
+          ],
           "support": {
             "chrome": [
               {
@@ -85,7 +88,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/column-rule-style.json b/css/properties/column-rule-style.json
index 66a737d2a0014a..ca807d8eef28b8 100644
--- a/css/properties/column-rule-style.json
+++ b/css/properties/column-rule-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/column-rule-style",
           "spec_url": "https://drafts.csswg.org/css-multicol/#crs",
+          "tags": [
+            "web-features:multi-column"
+          ],
           "support": {
             "chrome": [
               {
@@ -85,7 +88,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/column-rule-width.json b/css/properties/column-rule-width.json
index b043453c5f2ab0..18d293e32e462c 100644
--- a/css/properties/column-rule-width.json
+++ b/css/properties/column-rule-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/column-rule-width",
           "spec_url": "https://drafts.csswg.org/css-multicol/#crw",
+          "tags": [
+            "web-features:multi-column"
+          ],
           "support": {
             "chrome": [
               {
@@ -85,7 +88,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/column-rule.json b/css/properties/column-rule.json
index 0397e5f6d50da1..a6eadb9460a33e 100644
--- a/css/properties/column-rule.json
+++ b/css/properties/column-rule.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/column-rule",
           "spec_url": "https://drafts.csswg.org/css-multicol/#column-rule",
+          "tags": [
+            "web-features:multi-column"
+          ],
           "support": {
             "chrome": [
               {
@@ -33,7 +36,7 @@
                 "prefix": "-moz-",
                 "version_added": "3.5",
                 "version_removed": "74",
-                "notes": "Before Firefox 3, the default value for the <code>normal</code> keyword was <code>0</code> and not <code>1em</code>."
+                "notes": "Before Firefox 3, the default value for the `normal` keyword was `0` and not `1em`."
               }
             ],
             "firefox_android": [
@@ -86,7 +89,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/column-span.json b/css/properties/column-span.json
index 715910d9f3647b..639c340a6187d9 100644
--- a/css/properties/column-span.json
+++ b/css/properties/column-span.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/column-span",
           "spec_url": "https://drafts.csswg.org/css-multicol/#column-span",
+          "tags": [
+            "web-features:column-span"
+          ],
           "support": {
             "chrome": [
               {
@@ -46,7 +49,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -57,12 +61,17 @@
         "all": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-multicol/#valdef-column-span-all",
+            "tags": [
+              "web-features:column-span"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
               "firefox": {
                 "version_added": "71"
               },
@@ -78,7 +87,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -90,12 +100,17 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-multicol/#valdef-column-span-none",
+            "tags": [
+              "web-features:column-span"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
               "firefox": {
                 "version_added": "71"
               },
@@ -111,7 +126,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/column-width.json b/css/properties/column-width.json
index 9fb7eeb2b369c4..b23106030b11cd 100644
--- a/css/properties/column-width.json
+++ b/css/properties/column-width.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-sizing/#column-sizing",
             "https://drafts.csswg.org/css-multicol/#cw"
           ],
+          "tags": [
+            "web-features:multi-column"
+          ],
           "support": {
             "chrome": [
               {
@@ -36,7 +39,7 @@
                 "prefix": "-moz-",
                 "version_added": "1.5",
                 "version_removed": "74",
-                "notes": "Before version 37, multiple columns didn't work with <code>display: table-caption</code> elements."
+                "notes": "Before version 37, multiple columns didn't work with `display: table-caption` elements."
               }
             ],
             "firefox_android": [
@@ -46,7 +49,7 @@
               {
                 "prefix": "-moz-",
                 "version_added": "4",
-                "notes": "Before version 37, multiple columns didn't work with <code>display: table-caption</code> elements."
+                "notes": "Before version 37, multiple columns didn't work with `display: table-caption` elements."
               }
             ],
             "ie": {
@@ -90,13 +93,51 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "auto": {
+          "__compat": {
+            "tags": [
+              "web-features:multi-column"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "1"
+              },
+              "chrome_android": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
+              "firefox": {
+                "version_added": "1.5"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "3"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/css/properties/columns.json b/css/properties/columns.json
index 198bb6c20e43d6..69bc6c0ec37734 100644
--- a/css/properties/columns.json
+++ b/css/properties/columns.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/columns",
           "spec_url": "https://drafts.csswg.org/css-multicol/#columns",
+          "tags": [
+            "web-features:multi-column"
+          ],
           "support": {
             "chrome": [
               {
@@ -35,7 +38,7 @@
                 "prefix": "-moz-",
                 "version_added": "9",
                 "version_removed": "74",
-                "notes": "Before version 37, multiple columns didn't work with <code>display: table-caption</code> elements."
+                "notes": "Before version 37, multiple columns didn't work with `display: table-caption` elements."
               }
             ],
             "firefox_android": [
@@ -45,7 +48,7 @@
               {
                 "prefix": "-moz-",
                 "version_added": "22",
-                "notes": "Before version 37, multiple columns didn't work with <code>display: table-caption</code> elements."
+                "notes": "Before version 37, multiple columns didn't work with `display: table-caption` elements."
               }
             ],
             "ie": {
@@ -97,7 +100,8 @@
                 "prefix": "-webkit-",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/contain-intrinsic-block-size.json b/css/properties/contain-intrinsic-block-size.json
index 905ebc3a1510ca..14826e2c479b0a 100644
--- a/css/properties/contain-intrinsic-block-size.json
+++ b/css/properties/contain-intrinsic-block-size.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-contain-intrinsic-width-none",
+            "tags": [
+              "web-features:contain-intrinsic-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/contain-intrinsic-height.json b/css/properties/contain-intrinsic-height.json
index 153f6a862e27c7..388023abca151c 100644
--- a/css/properties/contain-intrinsic-height.json
+++ b/css/properties/contain-intrinsic-height.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-contain-intrinsic-width-none",
+            "tags": [
+              "web-features:contain-intrinsic-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/contain-intrinsic-inline-size.json b/css/properties/contain-intrinsic-inline-size.json
index 0c16c806f2c898..6c89f48d504186 100644
--- a/css/properties/contain-intrinsic-inline-size.json
+++ b/css/properties/contain-intrinsic-inline-size.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-contain-intrinsic-width-none",
+            "tags": [
+              "web-features:contain-intrinsic-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/contain-intrinsic-size.json b/css/properties/contain-intrinsic-size.json
index c527f9aa9a5a80..3052daa22b2a39 100644
--- a/css/properties/contain-intrinsic-size.json
+++ b/css/properties/contain-intrinsic-size.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +40,7 @@
         },
         "auto_none": {
           "__compat": {
-            "description": "<code>auto none</code> value",
+            "description": "`auto none` value",
             "tags": [
               "web-features:contain-intrinsic-size"
             ],
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +78,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-contain-intrinsic-width-none",
+            "tags": [
+              "web-features:contain-intrinsic-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -97,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/contain-intrinsic-width.json b/css/properties/contain-intrinsic-width.json
index 86ed5a06c78a69..64b1bb5c05c659 100644
--- a/css/properties/contain-intrinsic-width.json
+++ b/css/properties/contain-intrinsic-width.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-contain-intrinsic-width-none",
+            "tags": [
+              "web-features:contain-intrinsic-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "98"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/contain.json b/css/properties/contain.json
index 7c2a13dcba9e22..18fa6392a4d9cf 100644
--- a/css/properties/contain.json
+++ b/css/properties/contain.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -73,7 +75,7 @@
         "inline-size": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/contain#inline-size",
-            "spec_url": "https://drafts.csswg.org/css-contain-3/#valdef-contain-inline-size",
+            "spec_url": "https://drafts.csswg.org/css-contain-2/#valdef-contain-inline-size",
             "tags": [
               "web-features:contain-inline-size"
             ],
@@ -98,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -134,7 +137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -167,7 +171,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -203,7 +208,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -239,7 +245,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -272,7 +279,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -291,7 +299,7 @@
             "support": {
               "chrome": {
                 "version_added": "52",
-                "notes": "Before Chrome 115, style containment did not affect quotes, see <a href='https://crbug.com/882385'>bug 882385</a>."
+                "notes": "Before Chrome 115, style containment did not affect quotes, see [bug 40592922](https://crbug.com/40592922)."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -307,11 +315,12 @@
               "opera_android": "mirror",
               "safari": {
                 "version_added": "15.4",
-                "notes": "Style containment does not affect quotes, see <a href='https://webkit.org/b/232083'>bug 232083</a>."
+                "notes": "Style containment does not affect quotes, see [bug 232083](https://webkit.org/b/232083)."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/container-name.json b/css/properties/container-name.json
index 92be967fff336d..0f4fdb5ec7f736 100644
--- a/css/properties/container-name.json
+++ b/css/properties/container-name.json
@@ -4,7 +4,7 @@
       "container-name": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/container-name",
-          "spec_url": "https://drafts.csswg.org/css-contain-3/#container-name",
+          "spec_url": "https://drafts.csswg.org/css-conditional-5/#container-name",
           "tags": [
             "web-features:container-queries"
           ],
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +40,7 @@
         },
         "none": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-contain-3/#valdef-container-name-none",
+            "spec_url": "https://drafts.csswg.org/css-conditional-5/#valdef-container-name-none",
             "tags": [
               "web-features:container-queries"
             ],
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/container-type.json b/css/properties/container-type.json
index 3bb9621025d9a4..c34f8ba1e5702e 100644
--- a/css/properties/container-type.json
+++ b/css/properties/container-type.json
@@ -4,7 +4,7 @@
       "container-type": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/container-type",
-          "spec_url": "https://drafts.csswg.org/css-contain-3/#container-type",
+          "spec_url": "https://drafts.csswg.org/css-conditional-5/#container-type",
           "tags": [
             "web-features:container-queries"
           ],
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +40,7 @@
         },
         "inline-size": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-contain-3/#valdef-container-type-inline-size",
+            "spec_url": "https://drafts.csswg.org/css-conditional-5/#valdef-container-type-inline-size",
             "tags": [
               "web-features:container-queries"
             ],
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -75,7 +77,7 @@
         },
         "normal": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-contain-3/#valdef-container-type-normal",
+            "spec_url": "https://drafts.csswg.org/css-conditional-5/#valdef-container-type-normal",
             "tags": [
               "web-features:container-queries"
             ],
@@ -100,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -111,7 +114,7 @@
         },
         "size": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-contain-3/#valdef-container-type-size",
+            "spec_url": "https://drafts.csswg.org/css-conditional-5/#valdef-container-type-size",
             "tags": [
               "web-features:container-queries"
             ],
@@ -136,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/container.json b/css/properties/container.json
index c457a6235c9c38..f9ce061ac5d6f5 100644
--- a/css/properties/container.json
+++ b/css/properties/container.json
@@ -4,7 +4,7 @@
       "container": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/container",
-          "spec_url": "https://drafts.csswg.org/css-contain-3/#container-shorthand",
+          "spec_url": "https://drafts.csswg.org/css-conditional-5/#container-shorthand",
           "tags": [
             "web-features:container-queries"
           ],
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/content-visibility.json b/css/properties/content-visibility.json
index bf3f0f4305577c..6a4707673caa49 100644
--- a/css/properties/content-visibility.json
+++ b/css/properties/content-visibility.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -94,7 +96,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,7 +108,7 @@
         },
         "is_transitionable": {
           "__compat": {
-            "description": "Transitionable when setting <code>transition-behavior: allow-discrete</code>",
+            "description": "Transitionable when setting `transition-behavior: allow-discrete`",
             "spec_url": "https://drafts.csswg.org/css-contain/#content-visibility-animation",
             "tags": [
               "web-features:display-animation"
@@ -131,7 +134,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,7 +146,7 @@
         },
         "keyframe_animatable": {
           "__compat": {
-            "description": "<code>@keyframe</code> animatable",
+            "description": "`@keyframe` animatable",
             "spec_url": "https://drafts.csswg.org/css-contain/#content-visibility-animation",
             "tags": [
               "web-features:display-animation"
@@ -168,7 +172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -201,7 +206,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/content.json b/css/properties/content.json
index 2e98e5a20540c5..48d5cf21a0d870 100644
--- a/css/properties/content.json
+++ b/css/properties/content.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/content",
           "spec_url": "https://drafts.csswg.org/css-content/#content-property",
+          "tags": [
+            "web-features:content"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,7 +46,10 @@
         },
         "alt_text": {
           "__compat": {
-            "description": "Alternative text after <code>/</code>",
+            "description": "Alternative text after `/`",
+            "tags": [
+              "web-features:alt-text-generated-content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -64,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +84,9 @@
         "element_replacement": {
           "__compat": {
             "description": "Element replacement",
+            "tags": [
+              "web-features:content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "28"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,9 +124,12 @@
         },
         "gradient": {
           "__compat": {
-            "description": "<code>&lt;gradient&gt;</code>",
+            "description": "`&lt;gradient&gt;`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient",
             "spec_url": "https://drafts.csswg.org/css-images-4/#gradients",
+            "tags": [
+              "web-features:content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "26"
@@ -126,7 +141,7 @@
               "firefox": {
                 "version_added": "113",
                 "partial_implementation": true,
-                "notes": "<code>content: &lt;gradient&gt;</code>` doesn't paint on ::before/::after pseudo elements. See <a href='https://bugzil.la/1832901'>bug 1832901</a>."
+                "notes": "`content: &lt;gradient&gt;` doesn't paint on ::before/::after pseudo elements. See [bug 1832901](https://bugzil.la/1832901)."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -140,7 +155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -151,7 +167,7 @@
         },
         "image-set": {
           "__compat": {
-            "description": "<code>image-set()</code>",
+            "description": "`image-set()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image/image-set",
             "spec_url": "https://drafts.csswg.org/css-images-4/#image-set-notation",
             "tags": [
@@ -171,7 +187,7 @@
                   "version_added": "20",
                   "version_removed": "113",
                   "partial_implementation": true,
-                  "notes": "Support for <code>url</code> images only and <code>x</code> is the only supported resolution unit."
+                  "notes": "Support for `url` images only and `x` is the only supported resolution unit."
                 }
               ],
               "chrome_android": "mirror",
@@ -188,7 +204,7 @@
                   "version_added": "88",
                   "version_removed": "89",
                   "partial_implementation": true,
-                  "notes": "The <code>type()</code> function is not supported as an argument to <code>image-set()</code>."
+                  "notes": "The `type()` function is not supported as an argument to `image-set()`."
                 }
               ],
               "firefox_android": "mirror",
@@ -210,32 +226,33 @@
                   "version_added": "14",
                   "version_removed": "17",
                   "partial_implementation": true,
-                  "notes": "The <code>type()</code> function is not supported as an argument to <code>image-set()</code>."
+                  "notes": "The `type()` function is not supported as an argument to `image-set()`."
                 },
                 {
                   "prefix": "-webkit-",
                   "version_added": "14",
                   "version_removed": "17",
                   "partial_implementation": true,
-                  "notes": "The <code>type()</code> function is not supported as an argument to <code>image-set()</code>."
+                  "notes": "The `type()` function is not supported as an argument to `image-set()`."
                 },
                 {
                   "version_added": "10.1",
                   "version_removed": "14",
                   "partial_implementation": true,
-                  "notes": "Support for <code>url</code> images only and <code>x</code> is the only supported resolution unit."
+                  "notes": "Support for `url` images only and `x` is the only supported resolution unit."
                 },
                 {
                   "prefix": "-webkit-",
                   "version_added": "6",
                   "version_removed": "14",
                   "partial_implementation": true,
-                  "notes": "Support for <code>url</code> images only and <code>x</code> is the only supported resolution unit."
+                  "notes": "Support for `url` images only and `x` is the only supported resolution unit."
                 }
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -247,6 +264,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-content/#valdef-content-none",
+            "tags": [
+              "web-features:content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -270,7 +290,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -281,7 +302,10 @@
         },
         "none_applies_to_elements": {
           "__compat": {
-            "description": "<code>content: none</code> for elements",
+            "description": "`content: none` for elements",
+            "tags": [
+              "web-features:content"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -309,7 +333,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -321,6 +346,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-content/#valdef-content-normal",
+            "tags": [
+              "web-features:content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -344,7 +372,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -355,9 +384,12 @@
         },
         "url": {
           "__compat": {
-            "description": "<code>url()</code>",
-            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/url",
+            "description": "`url()`",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/url_value",
             "spec_url": "https://drafts.csswg.org/css-values/#urls",
+            "tags": [
+              "web-features:content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -385,7 +417,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/counter-increment.json b/css/properties/counter-increment.json
index 71558c928e1fea..7c5692db2a8b23 100644
--- a/css/properties/counter-increment.json
+++ b/css/properties/counter-increment.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/counter-increment",
           "spec_url": "https://drafts.csswg.org/css-lists/#increment-set",
+          "tags": [
+            "web-features:counters"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -36,7 +39,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,9 +51,12 @@
         "list-item": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-lists-3/#valdef-counter-increment-list-item",
+            "tags": [
+              "web-features:counters"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "28"
               },
               "chrome_android": "mirror",
               "edge": {
@@ -68,11 +75,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "9"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -84,6 +92,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-lists/#valdef-counter-set-none",
+            "tags": [
+              "web-features:counters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -109,7 +120,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/counter-reset.json b/css/properties/counter-reset.json
index 82690590fef1e2..3978cd23b4cc7d 100644
--- a/css/properties/counter-reset.json
+++ b/css/properties/counter-reset.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/counter-reset",
           "spec_url": "https://drafts.csswg.org/css-lists/#counter-reset",
+          "tags": [
+            "web-features:counters"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -36,7 +39,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,9 +51,14 @@
         "list-item": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-lists-3/#valdef-counter-increment-list-item",
+            "tags": [
+              "web-features:counters"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "28",
+                "partial_implementation": true,
+                "notes": "Overriding the initial value of the implicit `list-item` counter has _no_ effect when the default marker string for list items (`::marker`) is generated; see [bug 338233131](https://crbug.com/338233131)."
               },
               "chrome_android": "mirror",
               "edge": {
@@ -68,11 +77,14 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "9",
+                "partial_implementation": true,
+                "notes": "Overriding the initial value of the implicit `list-item` counter results in incorrect values for the `counter()` function used to generate content, as it is _not_ fully implemented; see [bug 260436](https://webkit.org/b/260436)."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -84,6 +96,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-lists/#valdef-counter-reset-none",
+            "tags": [
+              "web-features:counters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -109,7 +124,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -121,6 +137,9 @@
         "reset_does_not_affect_siblings": {
           "__compat": {
             "description": "Resets counter on current element (not sibling elements).",
+            "tags": [
+              "web-features:counters"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -141,7 +160,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -152,8 +172,11 @@
         },
         "reversed": {
           "__compat": {
-            "description": "<code>reversed()</code>",
+            "description": "`reversed()`",
             "spec_url": "https://drafts.csswg.org/css-lists/#css-counter-reversed",
+            "tags": [
+              "web-features:counter-reset-reversed"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -175,7 +198,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/counter-set.json b/css/properties/counter-set.json
index 82df2e81aaa5fd..0dbae759ad52fb 100644
--- a/css/properties/counter-set.json
+++ b/css/properties/counter-set.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/cursor.json b/css/properties/cursor.json
index 145866d0197707..926f6a8634461c 100644
--- a/css/properties/cursor.json
+++ b/css/properties/cursor.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/cursor",
           "spec_url": "https://drafts.csswg.org/css-ui/#cursor",
+          "tags": [
+            "web-features:cursor"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -22,7 +25,7 @@
             },
             "ie": {
               "version_added": "4",
-              "notes": "In Internet Explorer 11, when <code>cursor</code> is applied to an element and this element is underneath an open <a href='https://developer.mozilla.org/docs/Web/HTML/Element/select'><code>&lt;select&gt;</code></a> menu and the user hovers over a <a href='https://developer.mozilla.org/docs/Web/HTML/Element/select'><code>&lt;select&gt;</code></a> menu item that's on top of said element, the cursor for said element will be displayed rather than the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/select'><code>&lt;select&gt;</code></a>'s normal cursor. See <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/817822/'>bug 817822</a>."
+              "notes": "In Internet Explorer 11, when `cursor` is applied to an element and this element is underneath an open [`&lt;select&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/select) menu and the user hovers over a [`&lt;select&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/select) menu item that's on top of said element, the cursor for said element will be displayed rather than the [`&lt;select&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/select)'s normal cursor. See [bug 817822](https://developer.microsoft.com/microsoft-edge/platform/issues/817822/)."
             },
             "oculus": "mirror",
             "opera": {
@@ -32,9 +35,16 @@
             "safari": {
               "version_added": "1.2"
             },
-            "safari_ios": "mirror",
+            "safari_ios": {
+              "version_added": "13.4",
+              "notes": [
+                "This property is only supported on iPads with an external pointing device.",
+                "Unsupported values use the `default` pointer as a fallback."
+              ]
+            },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,6 +55,9 @@
         "alias": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-alias",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -71,10 +84,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -86,6 +101,9 @@
         "all-scroll": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-all-scroll",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -112,10 +130,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -127,6 +147,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-auto",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -152,9 +175,12 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": "13.4"
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -166,6 +192,9 @@
         "cell": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-cell",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -192,10 +221,11 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": "13.4"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -207,6 +237,9 @@
         "col-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-col-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -233,10 +266,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -248,6 +283,9 @@
         "context-menu": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-context-menu",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1",
@@ -276,10 +314,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -291,6 +331,9 @@
         "copy": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-copy",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -317,10 +360,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -332,6 +377,9 @@
         "crosshair": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-crosshair",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -357,9 +405,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -371,6 +423,9 @@
         "default": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-default",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -396,9 +451,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -410,6 +469,9 @@
         "e-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-e-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -435,9 +497,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -449,6 +515,9 @@
         "ew-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-ew-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -475,10 +544,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -489,7 +560,10 @@
         },
         "grab": {
           "__compat": {
-            "description": "Grab cursors (<code>grab</code> and <code>grabbing</code>)",
+            "description": "Grab cursors (`grab` and `grabbing`)",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": [
                 {
@@ -554,7 +628,8 @@
                 }
               ],
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": [
                 {
@@ -565,7 +640,8 @@
                   "version_added": "1.0"
                 }
               ],
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -577,14 +653,24 @@
         "grabbing": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-grabbing",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
-              "chrome": {
-                "version_added": "≤83"
-              },
+              "chrome": [
+                {
+                  "version_added": "68"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "1",
+                  "notes": "Chrome 22 added Windows support."
+                }
+              ],
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "27"
               },
               "firefox_android": {
                 "version_added": "95"
@@ -596,11 +682,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "11"
+              },
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
-              "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -612,6 +702,9 @@
         "help": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-help",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -637,9 +730,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -651,6 +748,9 @@
         "move": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-move",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -676,9 +776,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -690,6 +794,9 @@
         "n-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-n-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -715,9 +822,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -729,6 +840,9 @@
         "ne-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-ne-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -754,9 +868,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -768,6 +886,9 @@
         "nesw-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-nesw-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -794,10 +915,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -809,6 +932,9 @@
         "no-drop": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-no-drop",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -835,10 +961,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -850,6 +978,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-none",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -873,9 +1004,13 @@
               "safari": {
                 "version_added": "5"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -887,6 +1022,9 @@
         "not-allowed": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-not-allowed",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -913,10 +1051,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -928,6 +1068,9 @@
         "ns-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-ns-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -954,10 +1097,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -969,6 +1114,9 @@
         "nw-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-nw-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -994,9 +1142,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1008,6 +1160,9 @@
         "nwse-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-nwse-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1034,10 +1189,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1049,6 +1206,9 @@
         "pointer": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-pointer",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1074,9 +1234,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1088,6 +1252,9 @@
         "progress": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-progress",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1113,9 +1280,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1127,6 +1298,9 @@
         "row-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-row-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1153,10 +1327,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1168,6 +1344,9 @@
         "s-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-s-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1193,9 +1372,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1207,6 +1390,9 @@
         "se-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-se-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1232,9 +1418,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1246,6 +1436,9 @@
         "sw-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-sw-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1271,9 +1464,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1285,6 +1482,9 @@
         "text": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-text",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1310,9 +1510,12 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": "13.4"
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1323,7 +1526,10 @@
         },
         "url": {
           "__compat": {
-            "description": "<code>url()</code>",
+            "description": "`url()`",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1349,10 +1555,11 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": "13.4"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1363,7 +1570,10 @@
         },
         "url_positioning_syntax": {
           "__compat": {
-            "description": "<code>url()</code> positioning syntax",
+            "description": "`url()` positioning syntax",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1387,10 +1597,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1402,6 +1614,9 @@
         "vertical-text": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-vertical-text",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1428,10 +1643,12 @@
                 "version_added": "3"
               },
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1443,6 +1660,9 @@
         "w-resize": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-w-resize",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1468,9 +1688,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1482,6 +1706,9 @@
         "wait": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-wait",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1507,9 +1734,13 @@
               "safari": {
                 "version_added": "1.2"
               },
-              "safari_ios": "mirror",
+              "safari_ios": {
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
+              },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1521,6 +1752,9 @@
         "zoom-in": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-zoom-in",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": [
                 {
@@ -1581,10 +1815,12 @@
                 }
               ],
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1596,6 +1832,9 @@
         "zoom-out": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#valdef-cursor-zoom-out",
+            "tags": [
+              "web-features:cursor"
+            ],
             "support": {
               "chrome": [
                 {
@@ -1656,10 +1895,12 @@
                 }
               ],
               "safari_ios": {
-                "version_added": "1"
+                "version_added": false,
+                "notes": "If this value is used, the iPad will display the `default` pointer instead."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/custom-property.json b/css/properties/custom-property.json
index 9daa6480e4fc06..bfcef06e9b856c 100644
--- a/css/properties/custom-property.json
+++ b/css/properties/custom-property.json
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,9 +43,12 @@
         },
         "env": {
           "__compat": {
-            "description": "<code>env()</code>",
+            "description": "`env()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env",
             "spec_url": "https://drafts.csswg.org/css-env/#env-function",
+            "tags": [
+              "web-features:safe-area-inset"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -73,7 +77,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -83,9 +88,12 @@
           },
           "safe-area-inset-bottom": {
             "__compat": {
-              "description": "Safe area inset variable <code>safe-area-inset-bottom</code>",
+              "description": "Safe area inset variable `safe-area-inset-bottom`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env",
               "spec_url": "https://drafts.csswg.org/css-env/#safe-area-insets",
+              "tags": [
+                "web-features:safe-area-inset"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "69"
@@ -107,7 +115,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -118,9 +127,12 @@
           },
           "safe-area-inset-left": {
             "__compat": {
-              "description": "Safe area inset variable <code>safe-area-inset-left</code>",
+              "description": "Safe area inset variable `safe-area-inset-left`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env",
               "spec_url": "https://drafts.csswg.org/css-env/#safe-area-insets",
+              "tags": [
+                "web-features:safe-area-inset"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "69"
@@ -142,7 +154,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -153,9 +166,12 @@
           },
           "safe-area-inset-right": {
             "__compat": {
-              "description": "Safe area inset variable <code>safe-area-inset-right</code>",
+              "description": "Safe area inset variable `safe-area-inset-right`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env",
               "spec_url": "https://drafts.csswg.org/css-env/#safe-area-insets",
+              "tags": [
+                "web-features:safe-area-inset"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "69"
@@ -177,7 +193,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -188,9 +205,12 @@
           },
           "safe-area-inset-top": {
             "__compat": {
-              "description": "Safe area inset variable <code>safe-area-inset-top</code>",
+              "description": "Safe area inset variable `safe-area-inset-top`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env",
               "spec_url": "https://drafts.csswg.org/css-env/#safe-area-insets",
+              "tags": [
+                "web-features:safe-area-inset"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "69"
@@ -212,7 +232,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -223,9 +244,12 @@
           },
           "titlebar-area-height": {
             "__compat": {
-              "description": "Window Controls Overlay variable <code>titlebar-area-height</code>",
+              "description": "Window Controls Overlay variable `titlebar-area-height`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env",
               "spec_url": "https://wicg.github.io/window-controls-overlay/#title-bar-area-env-variables",
+              "tags": [
+                "web-features:window-controls-overlay"
+              ],
               "support": {
                 "chrome": [
                   {
@@ -263,7 +287,8 @@
                 },
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -274,9 +299,12 @@
           },
           "titlebar-area-width": {
             "__compat": {
-              "description": "Window Controls Overlay variable <code>titlebar-area-width</code>",
+              "description": "Window Controls Overlay variable `titlebar-area-width`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env",
               "spec_url": "https://wicg.github.io/window-controls-overlay/#title-bar-area-env-variables",
+              "tags": [
+                "web-features:window-controls-overlay"
+              ],
               "support": {
                 "chrome": [
                   {
@@ -314,7 +342,8 @@
                 },
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -325,9 +354,12 @@
           },
           "titlebar-area-x": {
             "__compat": {
-              "description": "Window Controls Overlay variable <code>titlebar-area-x</code>",
+              "description": "Window Controls Overlay variable `titlebar-area-x`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env",
               "spec_url": "https://wicg.github.io/window-controls-overlay/#title-bar-area-env-variables",
+              "tags": [
+                "web-features:window-controls-overlay"
+              ],
               "support": {
                 "chrome": [
                   {
@@ -365,7 +397,8 @@
                 },
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -376,9 +409,12 @@
           },
           "titlebar-area-y": {
             "__compat": {
-              "description": "Window Controls Overlay variable <code>titlebar-area-y</code>",
+              "description": "Window Controls Overlay variable `titlebar-area-y`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env",
               "spec_url": "https://wicg.github.io/window-controls-overlay/#title-bar-area-env-variables",
+              "tags": [
+                "web-features:window-controls-overlay"
+              ],
               "support": {
                 "chrome": [
                   {
@@ -416,7 +452,8 @@
                 },
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -428,7 +465,7 @@
         },
         "var": {
           "__compat": {
-            "description": "<code>var()</code>",
+            "description": "`var()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/var",
             "spec_url": "https://drafts.csswg.org/css-variables/#using-variables",
             "tags": [
@@ -459,7 +496,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "50"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/cx.json b/css/properties/cx.json
index 10f71678c3c8c8..e1cfaaf84b5f11 100644
--- a/css/properties/cx.json
+++ b/css/properties/cx.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/cx",
           "spec_url": "https://svgwg.org/svg2-draft/geometry.html#CX",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/cy.json b/css/properties/cy.json
index 0f78e6c92fb48e..187c547c55d0d1 100644
--- a/css/properties/cy.json
+++ b/css/properties/cy.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/cy",
           "spec_url": "https://svgwg.org/svg2-draft/geometry.html#CY",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/d.json b/css/properties/d.json
index 41866ca7e79a55..80e51d279dc62b 100644
--- a/css/properties/d.json
+++ b/css/properties/d.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/d",
           "spec_url": "https://svgwg.org/svg2-draft/paths.html#TheDProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "97"
             },
@@ -29,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/direction.json b/css/properties/direction.json
index 090157d5606250..1079210f3a5644 100644
--- a/css/properties/direction.json
+++ b/css/properties/direction.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/direction",
           "spec_url": "https://drafts.csswg.org/css-writing-modes/#direction",
+          "tags": [
+            "web-features:layout-direction-override"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
         "ltr": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-direction-ltr",
+            "tags": [
+              "web-features:layout-direction-override"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
         "rtl": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-direction-rtl",
+            "tags": [
+              "web-features:layout-direction-override"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -113,6 +125,9 @@
         "vertical_slider_direction": {
           "__compat": {
             "description": "Control direction of vertical range sliders, meters, and progress bars",
+            "tags": [
+              "web-features:vertical-form-controls"
+            ],
             "support": {
               "chrome": {
                 "version_added": "124"
@@ -138,7 +153,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/display.json b/css/properties/display.json
index c5a70a7eb7e62e..6f5f9927becbac 100644
--- a/css/properties/display.json
+++ b/css/properties/display.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/display",
           "spec_url": "https://drafts.csswg.org/css-display/#the-display-properties",
+          "tags": [
+            "web-features:display"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
         "block": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-display/#typedef-display-outside",
+            "tags": [
+              "web-features:display"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -70,7 +77,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -81,6 +89,10 @@
         },
         "contents": {
           "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-display/#valdef-display-contents",
+            "tags": [
+              "web-features:display-contents"
+            ],
             "support": {
               "chrome": {
                 "version_added": "65"
@@ -102,7 +114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,7 +125,10 @@
           },
           "contents_unusual": {
             "__compat": {
-              "description": "Specific behavior of unusual elements when <code>display: contents</code> is applied to them",
+              "description": "Specific behavior of unusual elements when `display: contents` is applied to them",
+              "tags": [
+                "web-features:display-contents"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "65"
@@ -134,7 +150,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -142,6 +159,49 @@
                 "deprecated": false
               }
             }
+          },
+          "focusable_elements": {
+            "__compat": {
+              "description": "Elements with `display: contents` are focusable",
+              "tags": [
+                "web-features:display-contents"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": false,
+                  "impl_url": "https://crbug.com/40866683"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false,
+                  "impl_url": [
+                    "https://bugzil.la/1791648",
+                    "https://bugzil.la/1553549"
+                  ]
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false,
+                  "impl_url": "https://webkit.org/b/255149"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
           }
         },
         "flex": {
@@ -172,13 +232,13 @@
                 {
                   "version_added": "11",
                   "partial_implementation": true,
-                  "notes": "IE incorrectly positions inline block content inside flex containers. See the <a href='https://answers.microsoft.com/en-us/ie/forum/ie11-iewindows_10/inline-block-content-in-a-flex-container-not/deea64e2-933b-4bd2-a98c-62be16d04b57'>discussion on Microsoft Answers</a>."
+                  "notes": "IE incorrectly positions inline block content inside flex containers. See the [discussion on Microsoft Answers](https://answers.microsoft.com/en-us/ie/forum/ie11-iewindows_10/inline-block-content-in-a-flex-container-not/deea64e2-933b-4bd2-a98c-62be16d04b57)."
                 },
                 {
                   "alternative_name": "-ms-flexbox",
                   "version_added": "8",
                   "partial_implementation": true,
-                  "notes": "IE incorrectly positions inline block content inside flex containers. See the <a href='https://answers.microsoft.com/en-us/ie/forum/ie11-iewindows_10/inline-block-content-in-a-flex-container-not/deea64e2-933b-4bd2-a98c-62be16d04b57'>discussion on Microsoft Answers</a>."
+                  "notes": "IE incorrectly positions inline block content inside flex containers. See the [discussion on Microsoft Answers](https://answers.microsoft.com/en-us/ie/forum/ie11-iewindows_10/inline-block-content-in-a-flex-container-not/deea64e2-933b-4bd2-a98c-62be16d04b57)."
                 }
               ],
               "oculus": "mirror",
@@ -219,7 +279,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -230,6 +291,9 @@
         },
         "flow-root": {
           "__compat": {
+            "tags": [
+              "web-features:display-flow-root"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -251,7 +315,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -300,7 +365,8 @@
                 "version_added": "6.0",
                 "notes": "Samsung Internet added this earlier than the corresponding Chrome version would indicate."
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -312,6 +378,9 @@
         "inline": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-display/#typedef-display-outside",
+            "tags": [
+              "web-features:display"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -339,7 +408,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -350,6 +420,9 @@
         },
         "inline-block": {
           "__compat": {
+            "tags": [
+              "web-features:display"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -369,7 +442,7 @@
                 {
                   "version_added": "6",
                   "partial_implementation": true,
-                  "notes": "Until Internet Explorer 8, <code>inline-block</code> is only for natural inline elements."
+                  "notes": "Until Internet Explorer 8, `inline-block` is only for natural inline elements."
                 }
               ],
               "oculus": "mirror",
@@ -382,7 +455,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -438,7 +512,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -487,7 +562,8 @@
                 "version_added": "6.0",
                 "notes": "Samsung Internet added this earlier than the corresponding Chrome version would indicate."
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -498,6 +574,9 @@
         },
         "inline-table": {
           "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -523,7 +602,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -534,7 +614,7 @@
         },
         "is_transitionable": {
           "__compat": {
-            "description": "Transitionable when setting <code>transition-behavior: allow-discrete</code>",
+            "description": "Transitionable when setting `transition-behavior: allow-discrete`",
             "spec_url": "https://drafts.csswg.org/css-display-4/#display-animation",
             "tags": [
               "web-features:display-animation"
@@ -560,7 +640,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -571,7 +652,7 @@
         },
         "keyframe_animatable": {
           "__compat": {
-            "description": "<code>@keyframe</code> animatable",
+            "description": "`@keyframe` animatable",
             "spec_url": "https://drafts.csswg.org/css-display-4/#display-animation",
             "tags": [
               "web-features:display-animation"
@@ -597,7 +678,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -610,6 +692,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/display-listitem",
             "spec_url": "https://drafts.csswg.org/css-display/#typedef-display-listitem",
+            "tags": [
+              "web-features:display-list-item"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -635,7 +720,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -645,7 +731,10 @@
           },
           "legend-support": {
             "__compat": {
-              "description": "Supported on <code>&lt;legend&gt;</code>",
+              "description": "Supported on `&lt;legend&gt;`",
+              "tags": [
+                "web-features:display-list-item"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "71"
@@ -667,7 +756,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -679,6 +769,9 @@
         },
         "math": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -700,7 +793,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -736,7 +830,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -747,10 +842,14 @@
         },
         "none": {
           "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-display/#valdef-display-none",
+            "tags": [
+              "web-features:display"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1",
-                "notes": "Chrome 65 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
+                "notes": "Chrome 65 stopped creating layout objects for elements inside an `&lt;iframe&gt;` with `display:none` applied."
               },
               "chrome_android": "mirror",
               "edge": {
@@ -766,11 +865,11 @@
               "oculus": "mirror",
               "opera": {
                 "version_added": "7",
-                "notes": "Opera 52 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
+                "notes": "Opera 52 stopped creating layout objects for elements inside an `&lt;iframe&gt;` with `display:none` applied."
               },
               "opera_android": {
                 "version_added": "10.1",
-                "notes": "Opera Android 47 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
+                "notes": "Opera Android 47 stopped creating layout objects for elements inside an `&lt;iframe&gt;` with `display:none` applied."
               },
               "safari": {
                 "version_added": "1"
@@ -778,19 +877,59 @@
               "safari_ios": "mirror",
               "samsunginternet_android": {
                 "version_added": "1.0",
-                "notes": "Chrome 65 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
+                "notes": "Chrome 65 stopped creating layout objects for elements inside an `&lt;iframe&gt;` with `display:none` applied."
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
+          },
+          "option_is_hidden": {
+            "__compat": {
+              "description": "Setting `display: none` on an `&lt;option&gt;` element hides it from the dropdown.",
+              "tags": [
+                "web-features:display"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "1"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "1"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": false,
+                "deprecated": false
+              }
+            }
           }
         },
         "ruby": {
           "__compat": {
+            "tags": [
+              "web-features:display-ruby"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -815,7 +954,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -826,6 +966,9 @@
         },
         "ruby-base": {
           "__compat": {
+            "tags": [
+              "web-features:display-ruby"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -850,7 +993,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -861,6 +1005,9 @@
         },
         "ruby-base-container": {
           "__compat": {
+            "tags": [
+              "web-features:display-ruby"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -885,7 +1032,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -896,6 +1044,9 @@
         },
         "ruby-text": {
           "__compat": {
+            "tags": [
+              "web-features:display-ruby"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -920,7 +1071,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -931,6 +1083,9 @@
         },
         "ruby-text-container": {
           "__compat": {
+            "tags": [
+              "web-features:display-ruby"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -955,7 +1110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -966,6 +1122,9 @@
         },
         "table": {
           "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -991,7 +1150,44 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "table-caption": {
+          "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "≤80"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "1"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "≤13.1"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1002,6 +1198,9 @@
         },
         "table-cell": {
           "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1027,7 +1226,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1038,6 +1238,9 @@
         },
         "table-column": {
           "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1063,7 +1266,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1074,6 +1278,9 @@
         },
         "table-column-group": {
           "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1099,7 +1306,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1110,6 +1318,9 @@
         },
         "table-footer-group": {
           "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1135,7 +1346,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1146,6 +1358,9 @@
         },
         "table-header-group": {
           "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1171,7 +1386,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1182,6 +1398,9 @@
         },
         "table-row": {
           "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1207,7 +1426,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1218,6 +1438,9 @@
         },
         "table-row-group": {
           "__compat": {
+            "tags": [
+              "web-features:display-table"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1243,7 +1466,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/dominant-baseline.json b/css/properties/dominant-baseline.json
index c82e450e53e4cf..d4c6b2e7333528 100644
--- a/css/properties/dominant-baseline.json
+++ b/css/properties/dominant-baseline.json
@@ -3,10 +3,14 @@
     "properties": {
       "dominant-baseline": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/dominant-baseline",
           "spec_url": [
             "https://svgwg.org/svg2-draft/text.html#DominantBaselineProperty",
             "https://drafts.csswg.org/css-inline/#dominant-baseline-property"
           ],
+          "tags": [
+            "web-features:dominant-baseline"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -14,7 +18,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -28,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +44,9 @@
         "alphabetic": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline/#valdef-dominant-baseline-alphabetic",
+            "tags": [
+              "web-features:dominant-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -46,7 +54,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -60,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,6 +81,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline/#valdef-dominant-baseline-auto",
+            "tags": [
+              "web-features:dominant-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -79,7 +91,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -93,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,6 +118,9 @@
         "central": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline/#valdef-dominant-baseline-central",
+            "tags": [
+              "web-features:dominant-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -112,7 +128,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -126,7 +142,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -138,6 +155,9 @@
         "hanging": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline/#valdef-dominant-baseline-hanging",
+            "tags": [
+              "web-features:dominant-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -145,7 +165,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -159,7 +179,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -171,6 +192,9 @@
         "ideographic": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline/#valdef-dominant-baseline-ideographic",
+            "tags": [
+              "web-features:dominant-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -178,7 +202,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -192,7 +216,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -204,6 +229,9 @@
         "mathematical": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline/#valdef-dominant-baseline-mathematical",
+            "tags": [
+              "web-features:dominant-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -211,7 +239,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -225,7 +253,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -237,6 +266,9 @@
         "middle": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline/#valdef-dominant-baseline-middle",
+            "tags": [
+              "web-features:dominant-baseline"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -244,7 +276,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "1"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -258,7 +290,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/empty-cells.json b/css/properties/empty-cells.json
index 75079810f65b85..799fb21830a86f 100644
--- a/css/properties/empty-cells.json
+++ b/css/properties/empty-cells.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/empty-cells",
           "spec_url": "https://drafts.csswg.org/css2/#empty-cells",
+          "tags": [
+            "web-features:table"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/field-sizing.json b/css/properties/field-sizing.json
index de8ee85fbc99f5..ea258855637d01 100644
--- a/css/properties/field-sizing.json
+++ b/css/properties/field-sizing.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -106,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/fill-opacity.json b/css/properties/fill-opacity.json
index bd67400e4d758c..3dee94faae7d20 100644
--- a/css/properties/fill-opacity.json
+++ b/css/properties/fill-opacity.json
@@ -5,16 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/fill-opacity",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#fill-opacity",
+          "tags": [
+            "web-features:opacity-svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/fill-rule.json b/css/properties/fill-rule.json
index 01c94f14d31a1b..506ed45cd1ec2c 100644
--- a/css/properties/fill-rule.json
+++ b/css/properties/fill-rule.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/fill-rule",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#fill-rule",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "evenodd": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#valdef-fill-rule-evenodd",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "nonzero": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#valdef-fill-rule-nonzero",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/fill.json b/css/properties/fill.json
index 5d63ace7f80e64..5c7bb6f8661b17 100644
--- a/css/properties/fill.json
+++ b/css/properties/fill.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/fill",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#fill-shorthand",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/filter.json b/css/properties/filter.json
index a82d473095c344..76f3207b2e7dfb 100644
--- a/css/properties/filter.json
+++ b/css/properties/filter.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#FilterProperty",
+          "tags": [
+            "web-features:filter"
+          ],
           "support": {
             "chrome": [
               {
@@ -13,7 +16,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "18",
-                "notes": "In Chrome 18 to 19, the <code>saturate()</code> function only takes integers instead of decimal or percentage values. From Chrome 20, this bug is fixed."
+                "notes": "In Chrome 18 to 19, the `saturate()` function only takes integers instead of decimal or percentage values. From Chrome 20, this bug is fixed."
               }
             ],
             "chrome_android": {
@@ -40,7 +43,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": false,
-              "notes": "Internet Explorer 4 to 9 implemented a non-standard <code>filter</code> property. The syntax was completely different from this one and is not documented here."
+              "notes": "Internet Explorer 4 to 9 implemented a non-standard `filter` property. The syntax was completely different from this one and is not documented here."
             },
             "oculus": "mirror",
             "opera": [
@@ -80,7 +83,8 @@
                 "prefix": "-webkit-",
                 "version_added": "4.4"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,6 +95,9 @@
         "svg_elements": {
           "__compat": {
             "description": "On SVG elements",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -113,7 +120,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/flex-basis.json b/css/properties/flex-basis.json
index b6f223284bb810..44e854b93492bb 100644
--- a/css/properties/flex-basis.json
+++ b/css/properties/flex-basis.json
@@ -41,7 +41,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "11",
-              "notes": "When a non-<code>auto</code> <code>flex-basis</code> is specified, Internet Explorer 10 and 11 always uses a <code>content-box</code> box model to calculate the size of a flex item, even if <a href='https://developer.mozilla.org/docs/Web/CSS/box-sizing'><code>box-sizing: border-box</code></a> is applied to the element. See <a href='https://github.com/philipwalton/flexbugs#7-flex-basis-doesnt-account-for-box-sizingborder-box'>Flexbug #7</a> for more info."
+              "notes": "When a non-`auto` `flex-basis` is specified, Internet Explorer 10 and 11 always uses a `content-box` box model to calculate the size of a flex item, even if [`box-sizing: border-box`](https://developer.mozilla.org/docs/Web/CSS/box-sizing) is applied to the element. See [Flexbug #7](https://github.com/philipwalton/flexbugs#7-flex-basis-doesnt-account-for-box-sizingborder-box) for more info."
             },
             "oculus": "mirror",
             "opera": [
@@ -73,7 +73,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -119,7 +120,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -130,6 +132,9 @@
         },
         "content": {
           "__compat": {
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "94"
@@ -159,7 +164,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -170,6 +176,9 @@
         },
         "fit-content": {
           "__compat": {
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "94"
@@ -197,7 +206,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -208,6 +218,9 @@
         },
         "max-content": {
           "__compat": {
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "94"
@@ -235,7 +248,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -246,6 +260,9 @@
         },
         "min-content": {
           "__compat": {
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "94"
@@ -273,7 +290,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/flex-direction.json b/css/properties/flex-direction.json
index 660089a0f3f56a..21f47475049270 100644
--- a/css/properties/flex-direction.json
+++ b/css/properties/flex-direction.json
@@ -78,7 +78,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +90,9 @@
         "column": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-flexbox/#valdef-flex-direction-column",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -112,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -124,6 +129,9 @@
         "column-reverse": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-flexbox/#valdef-flex-direction-column-reverse",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -139,7 +147,7 @@
                 {
                   "version_added": "≤72",
                   "partial_implementation": true,
-                  "notes": "Before Firefox 81, overflow with <code>column-reverse</code> was unsupported. See <a href='https://bugzil.la/1042151'>bug 1042151</a>."
+                  "notes": "Before Firefox 81, overflow with `column-reverse` was unsupported. See [bug 1042151](https://bugzil.la/1042151)."
                 }
               ],
               "firefox_android": "mirror",
@@ -154,7 +162,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -166,6 +175,9 @@
         "row": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-flexbox/#valdef-flex-direction-row",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -189,7 +201,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -201,6 +214,9 @@
         "row-reverse": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-flexbox/#valdef-flex-direction-row-reverse",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -216,7 +232,7 @@
                 {
                   "version_added": "≤72",
                   "partial_implementation": true,
-                  "notes": "Before Firefox 81, overflow with <code>column-reverse</code> was unsupported. See <a href='https://bugzil.la/1042151'>bug 1042151</a>."
+                  "notes": "Before Firefox 81, overflow with `column-reverse` was unsupported. See [bug 1042151](https://bugzil.la/1042151)."
                 }
               ],
               "firefox_android": "mirror",
@@ -231,7 +247,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/flex-flow.json b/css/properties/flex-flow.json
index b1ba06f1258094..32c01b346fc3b7 100644
--- a/css/properties/flex-flow.json
+++ b/css/properties/flex-flow.json
@@ -65,7 +65,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/flex-grow.json b/css/properties/flex-grow.json
index e85906d8a7fb24..78b7e29dc8257f 100644
--- a/css/properties/flex-grow.json
+++ b/css/properties/flex-grow.json
@@ -72,7 +72,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +84,9 @@
         "less_than_zero_animate": {
           "__compat": {
             "description": "&lt;0 animate",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -91,7 +95,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "32",
-                "notes": "Before Firefox 32, Firefox wasn't able to animate values starting or stopping at <code>0</code>."
+                "notes": "Before Firefox 32, Firefox wasn't able to animate values starting or stopping at `0`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -105,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/flex-shrink.json b/css/properties/flex-shrink.json
index 0f83fcbcc075c9..d0c26b667fef96 100644
--- a/css/properties/flex-shrink.json
+++ b/css/properties/flex-shrink.json
@@ -33,7 +33,7 @@
                 "version_added": "20",
                 "notes": [
                   "Since Firefox 28, multi-line flexbox is supported.",
-                  "Before Firefox 32, Firefox wasn't able to animate values starting or stopping at <code>0</code>."
+                  "Before Firefox 32, Firefox wasn't able to animate values starting or stopping at `0`."
                 ]
               },
               {
@@ -44,7 +44,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
-              "notes": "Internet Explorer 10 uses <code>0</code> instead of <code>1</code> as the initial value for the <code>flex-shrink</code> property. A workaround is to always set an explicit value for <code>flex-shrink</code>. See <a href='https://github.com/philipwalton/flexbugs#6-the-default-flex-value-has-changed'>Flexbug #6</a> for more info."
+              "notes": "Internet Explorer 10 uses `0` instead of `1` as the initial value for the `flex-shrink` property. A workaround is to always set an explicit value for `flex-shrink`. See [Flexbug #6](https://github.com/philipwalton/flexbugs#6-the-default-flex-value-has-changed) for more info."
             },
             "oculus": "mirror",
             "opera": [
@@ -76,7 +76,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/flex-wrap.json b/css/properties/flex-wrap.json
index a0235041a32cc2..1b84b8380a1a54 100644
--- a/css/properties/flex-wrap.json
+++ b/css/properties/flex-wrap.json
@@ -29,7 +29,7 @@
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "Partial support due to large number of bugs present. See <a href='https://github.com/philipwalton/flexbugs'>Flexbugs</a>."
+              "notes": "Partial support due to large number of bugs present. See [Flexbugs](https://github.com/philipwalton/flexbugs)."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -45,7 +45,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,6 +57,9 @@
         "nowrap": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-flexbox/#valdef-flex-wrap-nowrap",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -79,7 +83,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -91,6 +96,9 @@
         "wrap": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-flexbox/#valdef-flex-wrap-wrap",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -114,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -126,6 +135,9 @@
         "wrap-reverse": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-flexbox/#valdef-flex-wrap-wrap-reverse",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -149,7 +161,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/flex.json b/css/properties/flex.json
index fdf284fba7ed7a..91376bdffd80e1 100644
--- a/css/properties/flex.json
+++ b/css/properties/flex.json
@@ -33,8 +33,8 @@
                 "version_added": "20",
                 "notes": [
                   "Since Firefox 28, multi-line flexbox is supported.",
-                  "Before Firefox 32, Firefox wasn't able to animate values starting or stopping at <code>0</code>.",
-                  "Until Firefox 61, flex items that are sized according to their content are sized using <a href='https://drafts.csswg.org/css-sizing-3/#column-sizing'><code>fit-content</code>, not <code>max-content</code></a>."
+                  "Before Firefox 32, Firefox wasn't able to animate values starting or stopping at `0`.",
+                  "Until Firefox 61, flex items that are sized according to their content are sized using [`fit-content`, not `max-content`](https://drafts.csswg.org/css-sizing-3/#column-sizing)."
                 ]
               },
               {
@@ -47,16 +47,16 @@
               {
                 "version_added": "11",
                 "notes": [
-                  "Internet Explorer 11 ignores uses of <a href='https://developer.mozilla.org/docs/Web/CSS/calc'><code>calc()</code></a> in the <code>flex-basis</code> part of the <code>flex</code> syntax. This can be worked around by using the longhand properties instead of the shorthand. See <a href='https://github.com/philipwalton/flexbugs#8-flex-basis-doesnt-support-calc'>Flexbug #8</a> for more info.",
-                  "Internet Explorer 11 considers a unitless value in the <code>flex-basis</code> part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the <code>flex-basis</code> part of the <code>flex</code> shorthand value. See <a href='https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored'>Flexbug #4</a> for more info."
+                  "Internet Explorer 11 ignores uses of [`calc()`](https://developer.mozilla.org/docs/Web/CSS/calc) in the `flex-basis` part of the `flex` syntax. This can be worked around by using the longhand properties instead of the shorthand. See [Flexbug #8](https://github.com/philipwalton/flexbugs#8-flex-basis-doesnt-support-calc) for more info.",
+                  "Internet Explorer 11 considers a unitless value in the `flex-basis` part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the `flex-basis` part of the `flex` shorthand value. See [Flexbug #4](https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored) for more info."
                 ]
               },
               {
                 "prefix": "-ms-",
                 "version_added": "10",
                 "notes": [
-                  "Internet Explorer 10 and 11 ignore uses of <a href='https://developer.mozilla.org/docs/Web/CSS/calc'><code>calc()</code></a> in the <code>flex-basis</code> part of the <code>flex</code> syntax. This can be worked around by using the longhand properties instead of the shorthand. See <a href='https://github.com/philipwalton/flexbugs#8-flex-basis-doesnt-support-calc'>Flexbug #8</a> for more info.",
-                  "Internet Explorer 10 and 11 consider a unitless value in the <code>flex-basis</code> part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the <code>flex-basis</code> part of the <code>flex</code> shorthand value. See <a href='https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored'>Flexbug #4</a> for more info."
+                  "Internet Explorer 10 and 11 ignore uses of [`calc()`](https://developer.mozilla.org/docs/Web/CSS/calc) in the `flex-basis` part of the `flex` syntax. This can be worked around by using the longhand properties instead of the shorthand. See [Flexbug #8](https://github.com/philipwalton/flexbugs#8-flex-basis-doesnt-support-calc) for more info.",
+                  "Internet Explorer 10 and 11 consider a unitless value in the `flex-basis` part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the `flex-basis` part of the `flex` shorthand value. See [Flexbug #4](https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored) for more info."
                 ]
               }
             ],
@@ -78,7 +78,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,6 +90,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-flexbox/#valdef-flex-none",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
@@ -112,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/float.json b/css/properties/float.json
index 9c8e9a10ed7d76..03794f8374f5ee 100644
--- a/css/properties/float.json
+++ b/css/properties/float.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css2/#propdef-float",
             "https://drafts.csswg.org/css-logical/#float-clear"
           ],
+          "tags": [
+            "web-features:float-clear"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "inline-end": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-logical/#float-clear",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -79,6 +87,9 @@
         "inline-start": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-logical/#float-clear",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -100,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,6 +124,9 @@
         "left": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-float-left",
+            "tags": [
+              "web-features:float-clear"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -135,7 +150,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -147,6 +163,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-float-none",
+            "tags": [
+              "web-features:float-clear"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -170,7 +189,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -182,6 +202,9 @@
         "right": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-float-right",
+            "tags": [
+              "web-features:float-clear"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -205,7 +228,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/flood-color.json b/css/properties/flood-color.json
index 9b5c168a0225e1..5d6ace5b2a9ae4 100644
--- a/css/properties/flood-color.json
+++ b/css/properties/flood-color.json
@@ -3,7 +3,11 @@
     "properties": {
       "flood-color": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/flood-color",
           "spec_url": "https://drafts.fxtf.org/filter-effects-1/#FloodColorProperty",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -27,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/flood-opacity.json b/css/properties/flood-opacity.json
index f33aa7b60532cb..fec81b3f4dc43b 100644
--- a/css/properties/flood-opacity.json
+++ b/css/properties/flood-opacity.json
@@ -3,7 +3,11 @@
     "properties": {
       "flood-opacity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/flood-opacity",
           "spec_url": "https://drafts.fxtf.org/filter-effects-1/#FloodOpacityProperty",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -27,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/font-family.json b/css/properties/font-family.json
index cbc28a3c7310fd..470136c5f6b163 100644
--- a/css/properties/font-family.json
+++ b/css/properties/font-family.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-fonts/#generic-font-families",
             "https://drafts.csswg.org/css-fonts/#font-family-prop"
           ],
+          "tags": [
+            "web-features:font-family"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -18,7 +21,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Not supported on <code>option</code> elements. See <a href='https://bugzil.la/1536148'>bug 1536148</a>."
+              "notes": "Not supported on `option` elements. See [bug 1536148](https://bugzil.la/1536148)."
             },
             "firefox_android": {
               "version_added": "4"
@@ -38,7 +41,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,6 +52,9 @@
         },
         "math": {
           "__compat": {
+            "tags": [
+              "web-features:font-family-math"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -80,6 +88,9 @@
         },
         "system-ui": {
           "__compat": {
+            "tags": [
+              "web-features:font-family-system"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56"
@@ -116,7 +127,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-feature-settings.json b/css/properties/font-feature-settings.json
index 0429da4cd56c02..dc5c9e2eb9964f 100644
--- a/css/properties/font-feature-settings.json
+++ b/css/properties/font-feature-settings.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-feature-settings",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-feature-settings-prop",
+          "tags": [
+            "web-features:font-feature-settings"
+          ],
           "support": {
             "chrome": [
               {
@@ -22,17 +25,17 @@
             "firefox": [
               {
                 "version_added": "34",
-                "notes": "The <a href='https://mpeg.chiariglione.org/standards/mpeg-4/open-font-format/text-isoiec-cd-14496-22-3rd-edition'>ISO/IEC CD 14496-22 3rd edition</a> suggests using the <code>ssty</code> feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the <a href='https://developer.mozilla.org/docs/Web/MathML'>MathML</a> rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the <code>dtls</code> feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS."
+                "notes": "The [ISO/IEC CD 14496-22 3rd edition](https://mpeg.chiariglione.org/standards/mpeg-4/open-font-format/text-isoiec-cd-14496-22-3rd-edition) suggests using the `ssty` feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the [MathML](https://developer.mozilla.org/docs/Web/MathML) rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the `dtls` feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS."
               },
               {
                 "prefix": "-webkit-",
                 "version_added": "129",
-                "notes": "From Firefox 129 the <code>-webkit-font-feature-settings</code> alias has been added to support sites that are still supporting the vendor prefix."
+                "notes": "From Firefox 129 the `-webkit-font-feature-settings` alias has been added to support sites that are still supporting the vendor prefix."
               },
               {
                 "prefix": "-moz-",
                 "version_added": "15",
-                "notes": "From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See <a href='https://hacks.mozilla.org/2010/11/firefox-4-font-feature-support/'>OpenType Font Feature support in Firefox 4</a>."
+                "notes": "From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See [OpenType Font Feature support in Firefox 4](https://hacks.mozilla.org/2010/11/firefox-4-font-feature-support/)."
               }
             ],
             "firefox_android": "mirror",
@@ -49,7 +52,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -60,6 +64,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-feature-settings-normal-value",
+            "tags": [
+              "web-features:font-feature-settings"
+            ],
             "support": {
               "chrome": {
                 "version_added": "16"
@@ -83,7 +90,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-kerning.json b/css/properties/font-kerning.json
index ce280d0991bde6..ad67c2ddf916a9 100644
--- a/css/properties/font-kerning.json
+++ b/css/properties/font-kerning.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-kerning",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-kerning-prop",
+          "tags": [
+            "web-features:font-kerning"
+          ],
           "support": {
             "chrome": [
               {
@@ -48,7 +51,8 @@
                 "version_removed": "2.0"
               }
             ],
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/font-language-override.json b/css/properties/font-language-override.json
index ca8a0cff6ab968..d340bc011176d1 100644
--- a/css/properties/font-language-override.json
+++ b/css/properties/font-language-override.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-language-override",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-language-override-prop",
+          "tags": [
+            "web-features:font-language-override"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/font-optical-sizing.json b/css/properties/font-optical-sizing.json
index ecb381b37cea4f..4488df0711b890 100644
--- a/css/properties/font-optical-sizing.json
+++ b/css/properties/font-optical-sizing.json
@@ -27,11 +27,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "11"
+              "version_added": "13.1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,14 +43,19 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-optical-sizing-auto-value",
+            "tags": [
+              "web-features:font-optical-sizing"
+            ],
             "support": {
               "chrome": {
                 "version_added": "79"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": {
+                "version_added": "17"
+              },
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "62"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -59,11 +65,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "13.1"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -75,14 +82,19 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-optical-sizing-none-value",
+            "tags": [
+              "web-features:font-optical-sizing"
+            ],
             "support": {
               "chrome": {
                 "version_added": "79"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": {
+                "version_added": "17"
+              },
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "62"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -92,11 +104,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "13.1"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-palette.json b/css/properties/font-palette.json
index 373e4f103b76ec..e62984ea5137b2 100644
--- a/css/properties/font-palette.json
+++ b/css/properties/font-palette.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +40,7 @@
         },
         "animation_computed": {
           "__compat": {
-            "description": "Animation of <code>font-palette</code> by computed value",
+            "description": "Animation of `font-palette` by computed value",
             "tags": [
               "web-features:font-palette-animation"
             ],
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -76,6 +78,9 @@
         "dark": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-palette-dark",
+            "tags": [
+              "web-features:font-palette"
+            ],
             "support": {
               "chrome": {
                 "version_added": "101"
@@ -97,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -109,6 +115,9 @@
         "light": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-palette-light",
+            "tags": [
+              "web-features:font-palette"
+            ],
             "support": {
               "chrome": {
                 "version_added": "101"
@@ -130,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,6 +152,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-palette-normal",
+            "tags": [
+              "web-features:font-palette"
+            ],
             "support": {
               "chrome": {
                 "version_added": "101"
@@ -163,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -174,7 +188,7 @@
         },
         "palette-mix_function": {
           "__compat": {
-            "description": "<code>palette-mix()</code>",
+            "description": "`palette-mix()`",
             "spec_url": "https://drafts.csswg.org/css-fonts/#typedef-font-palette-palette-mix",
             "tags": [
               "web-features:font-palette-animation"
@@ -200,7 +214,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/font-size-adjust.json b/css/properties/font-size-adjust.json
index f70ea10e449cdc..3befa5b4406013 100644
--- a/css/properties/font-size-adjust.json
+++ b/css/properties/font-size-adjust.json
@@ -17,7 +17,7 @@
             "firefox": [
               {
                 "version_added": "3",
-                "notes": "Before Firefox 40, <code>font-size-adjust: 0</code> was incorrectly interpreted as <code>font-size-adjust: none</code> (<a href='https://bugzil.la/1144885'>bug 1144885</a>)."
+                "notes": "Before Firefox 40, `font-size-adjust: 0` was incorrectly interpreted as `font-size-adjust: none` ([bug 1144885](https://bugzil.la/1144885))."
               },
               {
                 "version_added": "1",
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -109,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -145,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-size.json b/css/properties/font-size.json
index 2ad6fd786a14ab..f21bfd3876a8cc 100644
--- a/css/properties/font-size.json
+++ b/css/properties/font-size.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-size",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-size-prop",
+          "tags": [
+            "web-features:font-size"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,7 +46,10 @@
         },
         "math": {
           "__compat": {
-            "description": "<code>math</code> keyword",
+            "description": "`math` keyword",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -64,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -75,7 +83,10 @@
         },
         "rem_values": {
           "__compat": {
-            "description": "<code>rem</code> values",
+            "description": "`rem` values",
+            "tags": [
+              "web-features:font-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -89,8 +100,8 @@
               "firefox": {
                 "version_added": "31",
                 "notes": [
-                  "Before Firefox 57, animations using em units are not affected by changes to the <code>font-size</code> of the animated element's parent (<a href='https://bugzil.la/1254424'>bug 1254424</a>).",
-                  "Before Firefox 57, some language settings' inherited <code>font-size</code> is smaller than expected (<a href='https://bugzil.la/1391341'>bug 1391341</a>)."
+                  "Before Firefox 57, animations using em units are not affected by changes to the `font-size` of the animated element's parent ([bug 1254424](https://bugzil.la/1254424)).",
+                  "Before Firefox 57, some language settings' inherited `font-size` is smaller than expected ([bug 1391341](https://bugzil.la/1391341))."
                 ]
               },
               "firefox_android": {
@@ -111,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -122,7 +134,10 @@
         },
         "xxx-large": {
           "__compat": {
-            "description": "<code>xxx-large</code> keyword",
+            "description": "`xxx-large` keyword",
+            "tags": [
+              "web-features:font-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "79"
@@ -144,7 +159,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-smooth.json b/css/properties/font-smooth.json
index e86d45f8907af9..37e2e7741b0b76 100644
--- a/css/properties/font-smooth.json
+++ b/css/properties/font-smooth.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/font-stretch.json b/css/properties/font-stretch.json
index a099062193d442..c5d313997b8ef5 100644
--- a/css/properties/font-stretch.json
+++ b/css/properties/font-stretch.json
@@ -5,10 +5,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-stretch",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-stretch-prop",
+          "tags": [
+            "web-features:font-stretch"
+          ],
           "support": {
             "chrome": {
               "version_added": "60",
-              "notes": "A <code>font-stretch</code> definition must be added to the <code>@font-face</code> before this property will function."
+              "notes": "A `font-stretch` definition must be added to the `@font-face` before this property will function."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -29,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +43,10 @@
         },
         "percentage": {
           "__compat": {
-            "description": "<code>&lt;percentage&gt;</code> syntax",
+            "description": "`&lt;percentage&gt;` syntax",
+            "tags": [
+              "web-features:font-stretch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "62"
@@ -63,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-style.json b/css/properties/font-style.json
index 520147176a4c80..9060c4caf15c65 100644
--- a/css/properties/font-style.json
+++ b/css/properties/font-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-style",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-style-prop",
+          "tags": [
+            "web-features:font-style"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 44, <code>oblique</code> was not distinguished from <code>italic</code>."
+              "notes": "Before Firefox 44, `oblique` was not distinguished from `italic`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         "italic": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-style-italic",
+            "tags": [
+              "web-features:font-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -79,6 +87,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-style-normal",
+            "tags": [
+              "web-features:font-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -102,7 +113,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -113,8 +125,11 @@
         },
         "oblique-angle": {
           "__compat": {
-            "description": "<code>oblique</code> can accept an <code>&lt;angle&gt;</code>",
+            "description": "`oblique` can accept an `&lt;angle&gt;`",
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-style-oblique-angle--90deg-90deg",
+            "tags": [
+              "web-features:font-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "62"
@@ -136,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-synthesis-position.json b/css/properties/font-synthesis-position.json
index 9dcbbdaf1f910b..05ea8fb5a825be 100644
--- a/css/properties/font-synthesis-position.json
+++ b/css/properties/font-synthesis-position.json
@@ -29,10 +29,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": false,
+            "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -100,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/font-synthesis-small-caps.json b/css/properties/font-synthesis-small-caps.json
index 3a7a6b121501a3..eeee737f6aae05 100644
--- a/css/properties/font-synthesis-small-caps.json
+++ b/css/properties/font-synthesis-small-caps.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-synthesis-style.json b/css/properties/font-synthesis-style.json
index 8878431b2dff25..83299e87116b3d 100644
--- a/css/properties/font-synthesis-style.json
+++ b/css/properties/font-synthesis-style.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-synthesis-weight.json b/css/properties/font-synthesis-weight.json
index 4e5834230744e1..181cc9714581d9 100644
--- a/css/properties/font-synthesis-weight.json
+++ b/css/properties/font-synthesis-weight.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-synthesis.json b/css/properties/font-synthesis.json
index 99fd3ccfdc621f..74d23ced0981c3 100644
--- a/css/properties/font-synthesis.json
+++ b/css/properties/font-synthesis.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +40,9 @@
         },
         "position": {
           "__compat": {
+            "tags": [
+              "web-features:font-synthesis"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -60,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -71,6 +76,9 @@
         },
         "small-caps": {
           "__compat": {
+            "tags": [
+              "web-features:font-synthesis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "97"
@@ -92,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +112,9 @@
         },
         "style": {
           "__compat": {
+            "tags": [
+              "web-features:font-synthesis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "97"
@@ -124,7 +136,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,6 +148,9 @@
         },
         "weight": {
           "__compat": {
+            "tags": [
+              "web-features:font-synthesis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "97"
@@ -156,7 +172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-variant-alternates.json b/css/properties/font-variant-alternates.json
index 8aa53250f8c4f5..263b22086331d8 100644
--- a/css/properties/font-variant-alternates.json
+++ b/css/properties/font-variant-alternates.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +40,7 @@
         },
         "annotation": {
           "__compat": {
-            "description": "<code>annotation()</code>",
+            "description": "`annotation()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-alternates#annotation()",
             "spec_url": "https://drafts.csswg.org/css-fonts/#annotation",
             "tags": [
@@ -66,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,7 +79,7 @@
         },
         "character_variant": {
           "__compat": {
-            "description": "<code>character-variant()</code>",
+            "description": "`character-variant()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-alternates#character-variant()",
             "spec_url": "https://drafts.csswg.org/css-fonts/#character-variant",
             "tags": [
@@ -104,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -116,6 +119,9 @@
         "historical-forms": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-alternates-historical-forms",
+            "tags": [
+              "web-features:font-variant-alternates"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -137,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -149,6 +156,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-alternates-normal-value",
+            "tags": [
+              "web-features:font-variant-alternates"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -170,7 +180,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -181,7 +192,7 @@
         },
         "ornaments": {
           "__compat": {
-            "description": "<code>ornaments()</code>",
+            "description": "`ornaments()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-alternates#ornaments()",
             "spec_url": "https://drafts.csswg.org/css-fonts/#ornaments",
             "tags": [
@@ -208,7 +219,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -219,7 +231,7 @@
         },
         "styleset": {
           "__compat": {
-            "description": "<code>styleset()</code>",
+            "description": "`styleset()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-alternates#styleset()",
             "spec_url": "https://drafts.csswg.org/css-fonts/#styleset",
             "tags": [
@@ -246,7 +258,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -257,7 +270,7 @@
         },
         "stylistic": {
           "__compat": {
-            "description": "<code>stylistic()</code>",
+            "description": "`stylistic()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-alternates#stylistic()",
             "spec_url": "https://drafts.csswg.org/css-fonts/#stylistic",
             "tags": [
@@ -284,7 +297,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -295,7 +309,7 @@
         },
         "swash": {
           "__compat": {
-            "description": "<code>swash()</code>",
+            "description": "`swash()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-alternates#swash()",
             "spec_url": "https://drafts.csswg.org/css-fonts/#swash",
             "tags": [
@@ -322,7 +336,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-variant-caps.json b/css/properties/font-variant-caps.json
index 1a26b647c2e806..d5e301576d9653 100644
--- a/css/properties/font-variant-caps.json
+++ b/css/properties/font-variant-caps.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-caps",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-caps-prop",
+          "tags": [
+            "web-features:font-variant-caps"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "all-petite-caps": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-caps-all-petite-caps",
+            "tags": [
+              "web-features:font-variant-caps"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "all-small-caps": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-caps-all-small-caps",
+            "tags": [
+              "web-features:font-variant-caps"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +115,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-caps-all-small-caps",
+            "tags": [
+              "web-features:font-variant-caps"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,6 +152,9 @@
         "petite-caps": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-caps-petite-caps",
+            "tags": [
+              "web-features:font-variant-caps"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -157,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -169,6 +189,9 @@
         "small-caps": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-caps-small-caps",
+            "tags": [
+              "web-features:font-variant-caps"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -190,7 +213,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -202,6 +226,9 @@
         "titling-caps": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-caps-titling-caps",
+            "tags": [
+              "web-features:font-variant-caps"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -223,7 +250,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -235,6 +263,9 @@
         "unicase": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-caps-unicase",
+            "tags": [
+              "web-features:font-variant-caps"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -256,7 +287,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-variant-east-asian.json b/css/properties/font-variant-east-asian.json
index 3085ec5163403c..3e55c5b3a4eb70 100644
--- a/css/properties/font-variant-east-asian.json
+++ b/css/properties/font-variant-east-asian.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-east-asian",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-east-asian-prop",
+          "tags": [
+            "web-features:font-variant-east-asian"
+          ],
           "support": {
             "chrome": {
               "version_added": "63"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "full-width": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-east-asian-full-width",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "jis04": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-east-asian-jis04",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +115,9 @@
         "jis78": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-east-asian-jis78",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,6 +152,9 @@
         "jis83": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-east-asian-jis83",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -157,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -169,6 +189,9 @@
         "jis90": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-east-asian-jis90",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -190,7 +213,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -202,6 +226,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-east-asian-normal-value",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -223,7 +250,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -235,6 +263,9 @@
         "proportional-width": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-east-asian-proportional-width",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -256,7 +287,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -268,6 +300,9 @@
         "ruby": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-east-asian-ruby",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -289,7 +324,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -301,6 +337,9 @@
         "simplified": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-east-asian-simplified",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -322,7 +361,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -334,6 +374,9 @@
         "traditional": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-east-asian-traditional",
+            "tags": [
+              "web-features:font-variant-east-asian"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -355,7 +398,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-variant-emoji.json b/css/properties/font-variant-emoji.json
index 0d4bf47963e8bd..9490f1dcad7096 100644
--- a/css/properties/font-variant-emoji.json
+++ b/css/properties/font-variant-emoji.json
@@ -5,9 +5,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-emoji",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-emoji-prop",
+          "tags": [
+            "web-features:font-variant-emoji"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -40,13 +43,170 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "emoji": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-emoji-emoji",
+            "tags": [
+              "web-features:font-variant-emoji"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "normal": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-emoji-normal",
+            "tags": [
+              "web-features:font-variant-emoji"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "text": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-emoji-text",
+            "tags": [
+              "web-features:font-variant-emoji"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "unicode": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-emoji-unicode",
+            "tags": [
+              "web-features:font-variant-emoji"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/css/properties/font-variant-ligatures.json b/css/properties/font-variant-ligatures.json
index 1ed094a0527cad..6e36d47c51dcd0 100644
--- a/css/properties/font-variant-ligatures.json
+++ b/css/properties/font-variant-ligatures.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-ligatures",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-ligatures-prop",
+          "tags": [
+            "web-features:font-variant-ligatures"
+          ],
           "support": {
             "chrome": [
               {
@@ -46,7 +49,8 @@
                 "prefix": "-webkit-",
                 "version_added": "4.4"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -57,6 +61,9 @@
         "common-ligatures": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-ligatures-common-ligatures",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -78,7 +85,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -90,6 +98,9 @@
         "contextual": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-ligatures-contextual",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -111,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -123,6 +135,9 @@
         "discretionary-ligatures": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-ligatures-discretionary-ligatures",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -144,7 +159,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,6 +172,9 @@
         "historical-ligatures": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-ligatures-historical-ligatures",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -177,7 +196,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -189,6 +209,9 @@
         "no-common-ligatures": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-ligatures-no-historical-ligatures",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -210,7 +233,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -222,6 +246,9 @@
         "no-contextual": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-ligatures-no-contextual",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -243,7 +270,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -255,6 +283,9 @@
         "no-discretionary-ligatures": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-ligatures-no-discretionary-ligatures",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -276,7 +307,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -288,6 +320,9 @@
         "no-historical-ligatures": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-ligatures-no-historical-ligatures",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -309,7 +344,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -321,6 +357,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-ligatures-none-value",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -342,7 +381,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -354,6 +394,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-ligatures-normal-value",
+            "tags": [
+              "web-features:font-variant-ligatures"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -375,7 +418,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-variant-numeric.json b/css/properties/font-variant-numeric.json
index b65dad1196b7ca..38abc078d6b4ea 100644
--- a/css/properties/font-variant-numeric.json
+++ b/css/properties/font-variant-numeric.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-numeric",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-numeric-prop",
+          "tags": [
+            "web-features:font-variant-numeric"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "diagonal-fractions": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-numeric-diagonal-fractions",
+            "tags": [
+              "web-features:font-variant-numeric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "lining-nums": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-numeric-lining-nums",
+            "tags": [
+              "web-features:font-variant-numeric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +115,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-numeric-normal-value",
+            "tags": [
+              "web-features:font-variant-numeric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,6 +152,9 @@
         "oldstyle-nums": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-numeric-oldstyle-nums",
+            "tags": [
+              "web-features:font-variant-numeric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -157,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -169,6 +189,9 @@
         "ordinal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-numeric-ordinal",
+            "tags": [
+              "web-features:font-variant-numeric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -190,7 +213,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -202,6 +226,9 @@
         "proportional-nums": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-numeric-proportional-nums",
+            "tags": [
+              "web-features:font-variant-numeric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -223,7 +250,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -235,6 +263,9 @@
         "slashed-zero": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-numeric-slashed-zero",
+            "tags": [
+              "web-features:font-variant-numeric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -256,7 +287,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -268,6 +300,9 @@
         "stacked-fractions": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-numeric-stacked-fractions",
+            "tags": [
+              "web-features:font-variant-numeric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -289,7 +324,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -301,6 +337,9 @@
         "tabular-nums": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-numeric-tabular-nums",
+            "tags": [
+              "web-features:font-variant-numeric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -322,7 +361,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-variant-position.json b/css/properties/font-variant-position.json
index 7caaa73c348c18..d4485e158fd724 100644
--- a/css/properties/font-variant-position.json
+++ b/css/properties/font-variant-position.json
@@ -5,9 +5,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant-position",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-position-prop",
+          "tags": [
+            "web-features:font-variant-position"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": false,
+              "notes": "The property is recognized, but has no effect."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -26,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,9 +42,13 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-position-normal-value",
+            "tags": [
+              "web-features:font-variant-position"
+            ],
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": false,
+                "notes": "The property is recognized, but has no effect."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -58,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,9 +80,13 @@
         "sub": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-position-sub",
+            "tags": [
+              "web-features:font-variant-position"
+            ],
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": false,
+                "notes": "The property is recognized, but has no effect."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -91,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,9 +118,13 @@
         "super": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-position-super",
+            "tags": [
+              "web-features:font-variant-position"
+            ],
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": false,
+                "notes": "The property is recognized, but has no effect."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -124,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-variant.json b/css/properties/font-variant.json
index bf9881357f1553..df75b1e3a2d46b 100644
--- a/css/properties/font-variant.json
+++ b/css/properties/font-variant.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variant",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-prop",
+          "tags": [
+            "web-features:font-variant"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -19,7 +22,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "4",
-              "notes": "Only supports the <code>small-caps</code> and <code>normal</code> keywords."
+              "notes": "Only supports the `small-caps` and `normal` keywords."
             },
             "oculus": "mirror",
             "opera": {
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         "css_fonts_shorthand": {
           "__compat": {
             "description": "CSS Fonts Module Level 3 shorthand",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,6 +85,9 @@
         "greek_accented_characters": {
           "__compat": {
             "description": "Greek accented characters",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
                 "version_added": false,
@@ -103,7 +114,8 @@
               "webview_android": {
                 "version_added": false,
                 "notes": "Some operating systems may correctly omit accents in all-uppercase Greek."
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -115,6 +127,9 @@
         "historical-forms": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-alternates-historical-forms",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -136,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -148,14 +164,17 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-size-adjust-none-value",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "52"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "34"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -165,11 +184,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "9"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -181,6 +201,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-normal-value",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -204,7 +227,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -216,6 +240,9 @@
         "sub": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-position-sub",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
                 "version_added": "110"
@@ -237,7 +264,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -249,6 +277,9 @@
         "super": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-variant-position-super",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
                 "version_added": "110"
@@ -270,7 +301,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -281,7 +313,10 @@
         },
         "turkic_is": {
           "__compat": {
-            "description": "<code>i</code> → <code>İ</code> and <code>ı</code> → <code>I</code>",
+            "description": "`i` → `İ` and `ı` → `I`",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -305,7 +340,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -316,17 +352,20 @@
         },
         "uppercase_eszett": {
           "__compat": {
-            "description": "<code>ß</code> → <code>SS</code>",
+            "description": "`ß` → `SS`",
+            "tags": [
+              "web-features:font-variant"
+            ],
             "support": {
               "chrome": {
                 "version_added": false,
-                "notes": "Some operating systems may capitalize <code>ß</code> as <code>SS</code>."
+                "notes": "Some operating systems may capitalize `ß` as `SS`."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
                 "version_added": false,
-                "notes": "Some operating systems may capitalize <code>ß</code> as <code>SS</code>."
+                "notes": "Some operating systems may capitalize `ß` as `SS`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -340,7 +379,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font-variation-settings.json b/css/properties/font-variation-settings.json
index 0c9c7ffb8f9fc3..7ad5dd8b2dca5e 100644
--- a/css/properties/font-variation-settings.json
+++ b/css/properties/font-variation-settings.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-variation-settings",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-variation-settings-def",
+          "tags": [
+            "web-features:font-variation-settings"
+          ],
           "support": {
             "chrome": {
               "version_added": "62"
@@ -32,7 +35,8 @@
               "notes": "Requires iOS 11 or later."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/font-weight.json b/css/properties/font-weight.json
index 763f1ae48db313..2113b41e2c781e 100644
--- a/css/properties/font-weight.json
+++ b/css/properties/font-weight.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-weight",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-weight-prop",
+          "tags": [
+            "web-features:font-weight"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
         "bold": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-weight-bold",
+            "tags": [
+              "web-features:font-weight"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
         "bolder": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-weight-bolder",
+            "tags": [
+              "web-features:font-weight"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -113,6 +125,9 @@
         "lighter": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-weight-lighter",
+            "tags": [
+              "web-features:font-weight"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -136,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -148,6 +164,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-fonts/#valdef-font-weight-normal",
+            "tags": [
+              "web-features:font-weight"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -171,7 +190,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -182,7 +202,10 @@
         },
         "number": {
           "__compat": {
-            "description": "<code>&lt;number&gt;</code> syntax",
+            "description": "`&lt;number&gt;` syntax",
+            "tags": [
+              "web-features:font-weight"
+            ],
             "support": {
               "chrome": {
                 "version_added": "62"
@@ -206,7 +229,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/font.json b/css/properties/font.json
index 67a784cc50ff24..c18d4414fbfd37 100644
--- a/css/properties/font.json
+++ b/css/properties/font.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-prop",
+          "tags": [
+            "web-features:font-shorthand"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,9 @@
         },
         "caption": {
           "__compat": {
+            "tags": [
+              "web-features:font-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -67,7 +74,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,7 +86,10 @@
         },
         "font_stretch_support": {
           "__compat": {
-            "description": "Support for <code>font-stretch</code> values in shorthand",
+            "description": "Support for `font-stretch` values in shorthand",
+            "tags": [
+              "web-features:font-stretch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -100,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -111,6 +123,9 @@
         },
         "icon": {
           "__compat": {
+            "tags": [
+              "web-features:font-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -138,7 +153,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -149,6 +165,9 @@
         },
         "menu": {
           "__compat": {
+            "tags": [
+              "web-features:font-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -176,7 +195,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -187,6 +207,9 @@
         },
         "message-box": {
           "__compat": {
+            "tags": [
+              "web-features:font-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -214,7 +237,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -225,6 +249,9 @@
         },
         "small-caption": {
           "__compat": {
+            "tags": [
+              "web-features:font-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -252,7 +279,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -263,6 +291,9 @@
         },
         "status-bar": {
           "__compat": {
+            "tags": [
+              "web-features:font-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -290,7 +321,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/forced-color-adjust.json b/css/properties/forced-color-adjust.json
index 5d45423e24079e..f3e09a8ae086f1 100644
--- a/css/properties/forced-color-adjust.json
+++ b/css/properties/forced-color-adjust.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/forced-color-adjust",
           "spec_url": "https://drafts.csswg.org/css-color-adjust/#forced-color-adjust-prop",
+          "tags": [
+            "web-features:forced-colors"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -35,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-color-adjust/#valdef-forced-color-adjust-auto",
+            "tags": [
+              "web-features:forced-colors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -81,6 +89,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-color-adjust/#valdef-forced-color-adjust-none",
+            "tags": [
+              "web-features:forced-colors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -104,7 +115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -116,6 +128,9 @@
         "preserve-parent-color": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-color-adjust/#valdef-forced-color-adjust-preserve-parent-color",
+            "tags": [
+              "web-features:forced-colors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "106"
@@ -137,7 +152,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/gap.json b/css/properties/gap.json
index 94f80980c8ede6..829d2aa984353b 100644
--- a/css/properties/gap.json
+++ b/css/properties/gap.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gap",
           "spec_url": "https://drafts.csswg.org/css-align/#gap-shorthand",
+          "tags": [
+            "web-features:grid"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -127,7 +132,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -137,7 +143,7 @@
           },
           "calc_values": {
             "__compat": {
-              "description": "<code>calc()</code> values",
+              "description": "`calc()` values",
               "tags": [
                 "web-features:grid"
               ],
@@ -164,7 +170,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -175,7 +182,7 @@
           },
           "percentage_values": {
             "__compat": {
-              "description": "<code>&lt;percentage&gt;</code> values",
+              "description": "`&lt;percentage&gt;` values",
               "tags": [
                 "web-features:grid"
               ],
@@ -202,7 +209,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -216,6 +224,9 @@
           "__compat": {
             "description": "Supported in Multi-column Layout",
             "spec_url": "https://drafts.csswg.org/css-align/#gap-shorthand",
+            "tags": [
+              "web-features:multi-column"
+            ],
             "support": {
               "chrome": {
                 "version_added": "66"
@@ -239,7 +250,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/glyph-orientation-vertical.json b/css/properties/glyph-orientation-vertical.json
index 352b40366a7b26..6f89cdede24abb 100644
--- a/css/properties/glyph-orientation-vertical.json
+++ b/css/properties/glyph-orientation-vertical.json
@@ -25,7 +25,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-area.json b/css/properties/grid-area.json
index 9017174e057ea4..6ef5310e8879dc 100644
--- a/css/properties/grid-area.json
+++ b/css/properties/grid-area.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-auto-columns.json b/css/properties/grid-auto-columns.json
index 94e5e789fc7bdc..a83c7d83e77ba0 100644
--- a/css/properties/grid-auto-columns.json
+++ b/css/properties/grid-auto-columns.json
@@ -31,7 +31,7 @@
                 "version_added": "52",
                 "version_removed": "70",
                 "partial_implementation": true,
-                "notes": "Does not accept multiple track-size values. See <a href='https://bugzil.la/1339672'>bug 1339672</a>."
+                "notes": "Does not accept multiple track-size values. See [bug 1339672](https://bugzil.la/1339672)."
               }
             ],
             "firefox_android": "mirror",
@@ -49,7 +49,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-auto-flow.json b/css/properties/grid-auto-flow.json
index 640301ff0d34ee..05e1da75a59496 100644
--- a/css/properties/grid-auto-flow.json
+++ b/css/properties/grid-auto-flow.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +45,9 @@
         "column": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid/#valdef-grid-auto-flow-column",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -61,11 +65,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "10.1"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,6 +82,9 @@
         "dense": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid/#valdef-grid-auto-flow-dense",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -94,11 +102,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "10.1"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,6 +119,9 @@
         "row": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid/#valdef-grid-auto-flow-row",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -127,11 +139,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "10.1"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/grid-auto-rows.json b/css/properties/grid-auto-rows.json
index 77fa1b6d8d4d29..ac96a5cf1e3e6f 100644
--- a/css/properties/grid-auto-rows.json
+++ b/css/properties/grid-auto-rows.json
@@ -31,7 +31,7 @@
                 "version_added": "52",
                 "version_removed": "70",
                 "partial_implementation": true,
-                "notes": "Does not accept multiple track-size values. See <a href='https://bugzil.la/1339672'>bug 1339672</a>."
+                "notes": "Does not accept multiple track-size values. See [bug 1339672](https://bugzil.la/1339672)."
               }
             ],
             "firefox_android": "mirror",
@@ -49,7 +49,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-column-end.json b/css/properties/grid-column-end.json
index 48e5bf84d0f1f0..b9f588562d3d19 100644
--- a/css/properties/grid-column-end.json
+++ b/css/properties/grid-column-end.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-column-start.json b/css/properties/grid-column-start.json
index 35f6cd8fc22b09..a8813bb9197712 100644
--- a/css/properties/grid-column-start.json
+++ b/css/properties/grid-column-start.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-column.json b/css/properties/grid-column.json
index 42404da33ae08b..d6e9cc1e6e3aa3 100644
--- a/css/properties/grid-column.json
+++ b/css/properties/grid-column.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-row-end.json b/css/properties/grid-row-end.json
index fc2a63e8c3a525..aa5da627e3e9a3 100644
--- a/css/properties/grid-row-end.json
+++ b/css/properties/grid-row-end.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-row-start.json b/css/properties/grid-row-start.json
index 8ada02a60c0555..79e2c5d02fa159 100644
--- a/css/properties/grid-row-start.json
+++ b/css/properties/grid-row-start.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-row.json b/css/properties/grid-row.json
index e616526910ee49..c9fe6f2615b771 100644
--- a/css/properties/grid-row.json
+++ b/css/properties/grid-row.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/grid-template-areas.json b/css/properties/grid-template-areas.json
index 78f0137e252695..112da52fb7efd7 100644
--- a/css/properties/grid-template-areas.json
+++ b/css/properties/grid-template-areas.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +45,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid/#valdef-grid-template-areas-none",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -65,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/grid-template-columns.json b/css/properties/grid-template-columns.json
index b582c05d3ecc32..6dbeee232110b9 100644
--- a/css/properties/grid-template-columns.json
+++ b/css/properties/grid-template-columns.json
@@ -44,7 +44,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,7 +80,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -91,6 +93,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-columns-auto",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -112,7 +117,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -123,7 +129,7 @@
         },
         "fit-content": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/fit-content",
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#sizing-values",
             "tags": [
@@ -154,7 +160,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -200,7 +207,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -212,6 +220,9 @@
         "max-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-columns-max-content",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -233,7 +244,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -245,6 +257,9 @@
         "min-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-columns-min-content",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -266,7 +281,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -277,7 +293,7 @@
         },
         "minmax": {
           "__compat": {
-            "description": "<code>minmax()</code>",
+            "description": "`minmax()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/minmax",
             "spec_url": "https://drafts.csswg.org/css-grid/#funcdef-grid-template-columns-minmax",
             "tags": [
@@ -308,7 +324,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -320,6 +337,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-rows-none",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -341,7 +361,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -352,7 +373,7 @@
         },
         "repeat": {
           "__compat": {
-            "description": "<code>repeat()</code>",
+            "description": "`repeat()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/repeat",
             "spec_url": "https://drafts.csswg.org/css-grid/#repeat-notation",
             "tags": [
@@ -374,13 +395,13 @@
                   "version_added": "57",
                   "version_removed": "76",
                   "partial_implementation": true,
-                  "notes": "<code>repeat(auto-fill, ...)</code> and <code>repeat(auto-fit, ...)</code> only support one repeated column (see <a href='https://bugzil.la/1341507'>bug 1341507</a>)."
+                  "notes": "`repeat(auto-fill, ...)` and `repeat(auto-fit, ...)` only support one repeated column (see [bug 1341507](https://bugzil.la/1341507))."
                 },
                 {
                   "version_added": "52",
                   "version_removed": "57",
                   "partial_implementation": true,
-                  "notes": "<a href='https://developer.mozilla.org/docs/Web/CSS/calc'><code>calc()</code></a> doesn't work in <code>repeat()</code> (see <a href='https://bugzil.la/1350069'>bug 1350069</a>)."
+                  "notes": "[`calc()`](https://developer.mozilla.org/docs/Web/CSS/calc) doesn't work in `repeat()` (see [bug 1350069](https://bugzil.la/1350069))."
                 }
               ],
               "firefox_android": "mirror",
@@ -397,7 +418,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -434,7 +456,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/grid-template-rows.json b/css/properties/grid-template-rows.json
index 8fad673174c598..5ebb8dd29c37c9 100644
--- a/css/properties/grid-template-rows.json
+++ b/css/properties/grid-template-rows.json
@@ -44,7 +44,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,7 +80,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -91,6 +93,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-columns-auto",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -112,7 +117,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -123,7 +129,7 @@
         },
         "fit-content": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/fit-content",
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#sizing-values",
             "tags": [
@@ -154,7 +160,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -201,7 +208,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -213,6 +221,9 @@
         "max-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-columns-max-content",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -234,7 +245,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -246,6 +258,9 @@
         "min-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-columns-min-content",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -267,7 +282,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -278,7 +294,7 @@
         },
         "minmax": {
           "__compat": {
-            "description": "<code>minmax()</code>",
+            "description": "`minmax()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/minmax",
             "spec_url": "https://drafts.csswg.org/css-grid/#funcdef-grid-template-columns-minmax",
             "tags": [
@@ -309,7 +325,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -321,6 +338,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid/#valdef-grid-template-rows-none",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -342,7 +362,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -353,7 +374,7 @@
         },
         "repeat": {
           "__compat": {
-            "description": "<code>repeat()</code>",
+            "description": "`repeat()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/repeat",
             "spec_url": "https://drafts.csswg.org/css-grid/#repeat-notation",
             "tags": [
@@ -375,13 +396,13 @@
                   "version_added": "57",
                   "version_removed": "76",
                   "partial_implementation": true,
-                  "notes": "<code>repeat(auto-fill, ...)</code> and <code>repeat(auto-fit, ...)</code> only support one repeated column (see <a href='https://bugzil.la/1341507'>bug 1341507</a>)."
+                  "notes": "`repeat(auto-fill, ...)` and `repeat(auto-fit, ...)` only support one repeated column (see [bug 1341507](https://bugzil.la/1341507))."
                 },
                 {
                   "version_added": "52",
                   "version_removed": "57",
                   "partial_implementation": true,
-                  "notes": "<a href='https://developer.mozilla.org/docs/Web/CSS/calc'><code>calc()</code></a> doesn't work in <code>repeat()</code> (see <a href='https://bugzil.la/1350069'>bug 1350069</a>)."
+                  "notes": "[`calc()`](https://developer.mozilla.org/docs/Web/CSS/calc) doesn't work in `repeat()` (see [bug 1350069](https://bugzil.la/1350069))."
                 }
               ],
               "firefox_android": "mirror",
@@ -398,7 +419,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -435,7 +457,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/grid-template.json b/css/properties/grid-template.json
index 6cf9389f7f050e..7212cce3c44d52 100644
--- a/css/properties/grid-template.json
+++ b/css/properties/grid-template.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +45,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-grid/#valdef-grid-template-none",
+            "tags": [
+              "web-features:grid"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -65,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/grid.json b/css/properties/grid.json
index b7e7a729421e92..0c81ca9a51e33a 100644
--- a/css/properties/grid.json
+++ b/css/properties/grid.json
@@ -34,7 +34,8 @@
               "version_added": "6.0",
               "notes": "This was added early so is out of sync with the equivalent Chromium version."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/hanging-punctuation.json b/css/properties/hanging-punctuation.json
index 891c86d8db66db..7719f5e359933e 100644
--- a/css/properties/hanging-punctuation.json
+++ b/css/properties/hanging-punctuation.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/hanging-punctuation",
           "spec_url": "https://drafts.csswg.org/css-text/#hanging-punctuation-property",
+          "tags": [
+            "web-features:hanging-punctuation"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -24,11 +27,12 @@
             "safari": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The characters <code>U+0027</code> and <code>U+0022</code> are not supported by the <code>first</code> and <code>last</code> keywords."
+              "notes": "The characters `U+0027` and `U+0022` are not supported by the `first` and `last` keywords."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
         "allow-end": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-hanging-punctuation-allow-end",
+            "tags": [
+              "web-features:hanging-punctuation"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -60,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,6 +80,9 @@
         "first": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-hanging-punctuation-first",
+            "tags": [
+              "web-features:hanging-punctuation"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -93,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,6 +117,9 @@
         "last": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-hanging-punctuation-last",
+            "tags": [
+              "web-features:hanging-punctuation"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -126,7 +141,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -138,6 +154,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-hanging-punctuation-none",
+            "tags": [
+              "web-features:hanging-punctuation"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -159,7 +178,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/height.json b/css/properties/height.json
index e868dcf5dd5fca..69c00efc6c3176 100644
--- a/css/properties/height.json
+++ b/css/properties/height.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-sizing/#preferred-size-properties",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -72,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -84,6 +89,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#preferred-size-properties",
+            "tags": [
+              "web-features:width-height"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -107,7 +115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -119,6 +128,9 @@
         "fit-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-width-fit-content",
+            "tags": [
+              "web-features:fit-content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -152,7 +164,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -163,8 +176,11 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
             "spec_url": "https://drafts.csswg.org/css-sizing/#funcdef-width-fit-content",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -192,7 +208,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -204,6 +221,9 @@
         "max-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing/#valdef-width-max-content",
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -235,7 +255,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -247,6 +268,9 @@
         "min-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing/#valdef-width-min-content",
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -278,7 +302,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -290,6 +315,9 @@
         "stretch": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-width-stretch",
+            "tags": [
+              "web-features:stretch"
+            ],
             "support": {
               "chrome": {
                 "alternative_name": "-webkit-fill-available",
@@ -316,7 +344,8 @@
                 "alternative_name": "-webkit-fill-available",
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/hyphenate-character.json b/css/properties/hyphenate-character.json
index c4f96f709c0b16..1e3f3425d2269c 100644
--- a/css/properties/hyphenate-character.json
+++ b/css/properties/hyphenate-character.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/hyphenate-character",
           "spec_url": "https://drafts.csswg.org/css-text-4/#propdef-hyphenate-character",
+          "tags": [
+            "web-features:hyphenate-character"
+          ],
           "support": {
             "chrome": [
               {
@@ -38,7 +41,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,6 +53,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-hyphenate-character-auto",
+            "tags": [
+              "web-features:hyphenate-character"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -70,7 +77,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/hyphenate-limit-chars.json b/css/properties/hyphenate-limit-chars.json
index ec924e0d7130dc..050b005c1006f0 100644
--- a/css/properties/hyphenate-limit-chars.json
+++ b/css/properties/hyphenate-limit-chars.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/hyphenate-limit-chars",
           "spec_url": "https://drafts.csswg.org/css-text-4/#propdef-hyphenate-limit-chars",
+          "tags": [
+            "web-features:hyphenate-limit-chars"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-hyphenate-limit-chars-auto",
+            "tags": [
+              "web-features:hyphenate-limit-chars"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/hyphens.json b/css/properties/hyphens.json
index ae84a86e89234c..0c2c24fc46e5ad 100644
--- a/css/properties/hyphens.json
+++ b/css/properties/hyphens.json
@@ -73,7 +73,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,7 +84,10 @@
         },
         "auto": {
           "__compat": {
-            "description": "<code>auto</code> value",
+            "description": "`auto` value",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": [
                 {
@@ -116,7 +120,8 @@
                 "version_added": "4.2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -128,6 +133,9 @@
         "language_afrikaans": {
           "__compat": {
             "description": "Hyphenation dictionary for Afrikaans (af, af-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -149,7 +157,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -161,6 +170,9 @@
         "language_albanian": {
           "__compat": {
             "description": "Hyphenation dictionary for Albanian (sq, sq-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -182,7 +194,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -194,6 +207,9 @@
         "language_amharic": {
           "__compat": {
             "description": "Hyphenation dictionary for Ahmaric (am, am-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -215,7 +231,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -227,6 +244,9 @@
         "language_armenian": {
           "__compat": {
             "description": "Hyphenation dictionary for Armenian (hy, hy-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -248,7 +268,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -260,6 +281,9 @@
         "language_assamese": {
           "__compat": {
             "description": "Hyphenation dictionary for Assamese (as, as-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -281,7 +305,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -293,6 +318,9 @@
         "language_basque": {
           "__compat": {
             "description": "Hyphenation dictionary for Basque (be, be-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -314,7 +342,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -326,6 +355,9 @@
         "language_belarusian": {
           "__compat": {
             "description": "Hyphenation dictionary for Belarusian (be, be-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -347,7 +379,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -359,6 +392,9 @@
         "language_bengali": {
           "__compat": {
             "description": "Hyphenation dictionary for Bengali (bn, bn-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -380,7 +416,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -391,7 +428,10 @@
         },
         "language_bosnian": {
           "__compat": {
-            "description": "Hyphenation dictionary for Bosnian, Serbian, and Serbo-Croatian (sh, sh-*, sr, sr-*, bs, bs-*)",
+            "description": "Hyphenation dictionary for Bosnian, Serbian, and Serbo-Croatian (sh, sh-\\*, sr, sr-\\*, bs, bs-\\*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -413,7 +453,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -425,6 +466,9 @@
         "language_bulgarian": {
           "__compat": {
             "description": "Hyphenation dictionary for Bulgarian (bg, bg-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -446,7 +490,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -458,6 +503,9 @@
         "language_catalan": {
           "__compat": {
             "description": "Hyphenation dictionary for Catalan (ca, ca-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -479,7 +527,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -491,6 +540,9 @@
         "language_croatian": {
           "__compat": {
             "description": "Hyphenation dictionary for Croatian (hr, hr-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -512,7 +564,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -524,6 +577,9 @@
         "language_cyrillic_mongolian": {
           "__compat": {
             "description": "Hyphenation dictionary for Mongolian (Cyrillic) (mn-cyrl, mn-cyrl-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -545,7 +601,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -557,6 +614,9 @@
         "language_czech": {
           "__compat": {
             "description": "Hyphenation dictionary for Czech (cs, cs-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -578,7 +638,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -590,6 +651,9 @@
         "language_danish": {
           "__compat": {
             "description": "Hyphenation dictionary for Danish (da, da-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -611,7 +675,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -623,6 +688,9 @@
         "language_dutch": {
           "__compat": {
             "description": "Hyphenation dictionary for Dutch (nl, nl-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -644,7 +712,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -656,6 +725,9 @@
         "language_english": {
           "__compat": {
             "description": "Hyphenation dictionary for English (en, en-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "55"
@@ -685,7 +757,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -697,6 +770,9 @@
         "language_esperanto": {
           "__compat": {
             "description": "Hyphenation dictionary for Esperanto (eo, eo-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -718,7 +794,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -730,6 +807,9 @@
         "language_estonian": {
           "__compat": {
             "description": "Hyphenation dictionary for Estonian (et, et-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -751,7 +831,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -763,6 +844,9 @@
         "language_ethiopic_script_mul": {
           "__compat": {
             "description": "Hyphenation dictionary for Ethiopic script (mul-ethi, mul-ethi-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -784,7 +868,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -796,6 +881,9 @@
         "language_ethiopic_script_und": {
           "__compat": {
             "description": "Hyphenation dictionary for Ethiopic script (und-ethi, und-ethi-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -817,7 +905,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -829,6 +918,9 @@
         "language_finnish": {
           "__compat": {
             "description": "Hyphenation dictionary for Finnish (fi, fi-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -850,7 +942,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -862,6 +955,9 @@
         "language_french": {
           "__compat": {
             "description": "Hyphenation dictionary for French (fr, fr-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -883,7 +979,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -895,6 +992,9 @@
         "language_galician": {
           "__compat": {
             "description": "Hyphenation dictionary for Galician (gl, gl-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -916,7 +1016,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -928,6 +1029,9 @@
         "language_georgian": {
           "__compat": {
             "description": "Hyphenation dictionary for Georgian (ka, ka-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -949,7 +1053,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -961,6 +1066,9 @@
         "language_german_reformed_orthography": {
           "__compat": {
             "description": "Hyphenation dictionary for German, Reformed Orthography of 1996 (de, de-1996, de-DE, de-AT, de-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -982,7 +1090,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -994,6 +1103,9 @@
         "language_german_swiss_orthography": {
           "__compat": {
             "description": "Hyphenation dictionary for German, Swiss Orthography (de-CH, de-CH-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1015,7 +1127,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1027,6 +1140,9 @@
         "language_german_traditional_orthography": {
           "__compat": {
             "description": "Hyphenation dictionary for German, Traditional Orthography of 1901 (de-1901, de-AT-1901, de-DE-1901)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1048,7 +1164,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1060,6 +1177,9 @@
         "language_gujarati": {
           "__compat": {
             "description": "Hyphenation dictionary for Gujarati (gu, gu-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1081,7 +1201,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1093,6 +1214,9 @@
         "language_hindi": {
           "__compat": {
             "description": "Hyphenation dictionary for Hindi (hi, hi-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1114,7 +1238,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1126,6 +1251,9 @@
         "language_hungarian": {
           "__compat": {
             "description": "Hyphenation dictionary for Hungarian (hu, hu-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1147,7 +1275,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1159,6 +1288,9 @@
         "language_icelandic": {
           "__compat": {
             "description": "Hyphenation dictionary for Icelandic (is, is-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -1180,7 +1312,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1192,6 +1325,9 @@
         "language_interlingua": {
           "__compat": {
             "description": "Hyphenation dictionary for Interlingua (ia, ia-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -1213,7 +1349,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1225,6 +1362,9 @@
         "language_irish": {
           "__compat": {
             "description": "Hyphenation dictionary for Irish (ga, ga-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1246,7 +1386,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1258,6 +1399,9 @@
         "language_italian": {
           "__compat": {
             "description": "Hyphenation dictionary for Italian (it, it-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -1279,7 +1423,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1291,6 +1436,9 @@
         "language_kannada": {
           "__compat": {
             "description": "Hyphenation dictionary for Kannada (kn, kn-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1312,7 +1460,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1324,6 +1473,9 @@
         "language_kurmanji": {
           "__compat": {
             "description": "Hyphenation dictionary for Kurmanji (kmr, kmr-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -1345,7 +1497,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1357,6 +1510,9 @@
         "language_latin": {
           "__compat": {
             "description": "Hyphenation dictionary for Latin (la, la-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1378,7 +1534,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1390,6 +1547,9 @@
         "language_latvian": {
           "__compat": {
             "description": "Hyphenation dictionary for Latvian (lv, lv-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -1411,7 +1571,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1423,6 +1584,9 @@
         "language_lithuanian": {
           "__compat": {
             "description": "Hyphenation dictionary for Lithuanian (lt, lt-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -1444,7 +1608,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1456,6 +1621,9 @@
         "language_malayalam": {
           "__compat": {
             "description": "Hyphenation dictionary for Malayalam (ml, ml-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1477,7 +1645,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1489,6 +1658,9 @@
         "language_marathi": {
           "__compat": {
             "description": "Hyphenation dictionary for Marathi (mr, mr-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1510,7 +1682,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1522,6 +1695,9 @@
         "language_modern_greek": {
           "__compat": {
             "description": "Hyphenation dictionary for Modern Greek (el, el-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -1543,7 +1719,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1555,6 +1732,9 @@
         "language_mongolian": {
           "__compat": {
             "description": "Hyphenation dictionary for Mongolian (mn, mn-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -1576,7 +1756,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1587,7 +1768,10 @@
         },
         "language_norwegian_nn": {
           "__compat": {
-            "description": "Hyphenation dictionary for Norwegian (Nynorsk) (nn, nn-*)",
+            "description": "Hyphenation dictionary for Norwegian (Nynorsk) (nn, nn-\\*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1611,7 +1795,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1622,7 +1807,10 @@
         },
         "language_norwegian_no": {
           "__compat": {
-            "description": "Hyphenation dictionary for Norwegian (Bokmål) (no, no-*, nb, nb-*)",
+            "description": "Hyphenation dictionary for Norwegian (Bokmål) (no, no-\\*, nb, nb-\\*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1644,7 +1832,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1656,6 +1845,9 @@
         "language_old_slavonic": {
           "__compat": {
             "description": "Hyphenation dictionary for Old Slavonic (cu, cu-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1677,7 +1869,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1689,6 +1882,9 @@
         "language_oriya": {
           "__compat": {
             "description": "Hyphenation dictionary for Oriya (or, or-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1710,7 +1906,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1722,6 +1919,9 @@
         "language_polish": {
           "__compat": {
             "description": "Hyphenation dictionary for Polish (pl, pl-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -1743,7 +1943,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1755,6 +1956,9 @@
         "language_portuguese": {
           "__compat": {
             "description": "Hyphenation dictionary for Portuguese (pt, pt-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1776,7 +1980,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1788,6 +1993,9 @@
         "language_punjabi": {
           "__compat": {
             "description": "Hyphenation dictionary for Punjabi/Panjabi (pa, pa-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1809,7 +2017,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1821,6 +2030,9 @@
         "language_russian": {
           "__compat": {
             "description": "Hyphenation dictionary for Russian (ru, ru-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -1842,7 +2054,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1854,6 +2067,9 @@
         "language_slovak": {
           "__compat": {
             "description": "Hyphenation dictionary for Slovak (sk, sk-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -1875,7 +2091,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1887,6 +2104,9 @@
         "language_slovenian": {
           "__compat": {
             "description": "Hyphenation dictionary for Slovenian (sl, sl-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1908,7 +2128,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1920,6 +2141,9 @@
         "language_spanish": {
           "__compat": {
             "description": "Hyphenation dictionary for Spanish (es, es-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -1941,7 +2165,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1953,6 +2178,9 @@
         "language_swedish": {
           "__compat": {
             "description": "Hyphenation dictionary for Swedish (sv, sv-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -1974,7 +2202,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1986,6 +2215,9 @@
         "language_tamil": {
           "__compat": {
             "description": "Hyphenation dictionary for Tamil (ta, ta-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -2007,7 +2239,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2019,6 +2252,9 @@
         "language_telugu": {
           "__compat": {
             "description": "Hyphenation dictionary for Telugu (te, te-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -2040,7 +2276,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2052,6 +2289,9 @@
         "language_turkish": {
           "__compat": {
             "description": "Hyphenation dictionary for Turkish (tr, tr-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -2073,7 +2313,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2085,6 +2326,9 @@
         "language_turkmen": {
           "__compat": {
             "description": "Hyphenation dictionary for Turkmen (tk, tk-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -2106,7 +2350,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2118,6 +2363,9 @@
         "language_ukrainian": {
           "__compat": {
             "description": "Hyphenation dictionary for Ukrainian (uk, uk-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -2139,7 +2387,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2151,6 +2400,9 @@
         "language_upper_sorbian": {
           "__compat": {
             "description": "Hyphenation dictionary for Upper Sorbian (hsb, hsb-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -2172,7 +2424,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2184,6 +2437,9 @@
         "language_welsh": {
           "__compat": {
             "description": "Hyphenation dictionary for Welsh (cy, cy-*)",
+            "tags": [
+              "web-features:hyphens"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -2205,7 +2461,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/image-orientation.json b/css/properties/image-orientation.json
index 09d4bfe22a8c98..192dba51c35b73 100644
--- a/css/properties/image-orientation.json
+++ b/css/properties/image-orientation.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image-orientation",
           "spec_url": "https://drafts.csswg.org/css-images/#the-image-orientation",
+          "tags": [
+            "web-features:image-orientation"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
         "from-image": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-image-orientation-from-image",
+            "tags": [
+              "web-features:image-orientation"
+            ],
             "support": {
               "chrome": {
                 "version_added": "81"
@@ -60,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,6 +80,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-image-orientation-none",
+            "tags": [
+              "web-features:image-orientation"
+            ],
             "support": {
               "chrome": {
                 "version_added": "81"
@@ -93,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/image-rendering.json b/css/properties/image-rendering.json
index 994f62fc702279..c9da0fd4c5c799 100644
--- a/css/properties/image-rendering.json
+++ b/css/properties/image-rendering.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image-rendering",
           "spec_url": "https://drafts.csswg.org/css-images/#the-image-rendering",
+          "tags": [
+            "web-features:image-rendering"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -28,7 +31,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-image-rendering-auto",
+            "tags": [
+              "web-features:image-rendering"
+            ],
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -60,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,6 +80,9 @@
         "crisp-edges": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-image-rendering-crisp-edges",
+            "tags": [
+              "web-features:crisp-edges"
+            ],
             "support": {
               "chrome": {
                 "alternative_name": "-webkit-optimize-contrast",
@@ -106,7 +117,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -138,7 +150,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -170,7 +183,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -182,6 +196,9 @@
         "pixelated": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-image-rendering-pixelated",
+            "tags": [
+              "web-features:image-rendering"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -207,7 +224,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -219,6 +237,9 @@
         "smooth": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-image-rendering-smooth",
+            "tags": [
+              "web-features:smooth"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -240,7 +261,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/ime-mode.json b/css/properties/ime-mode.json
index 2f5dd590daa203..2bcff9fa0e85b5 100644
--- a/css/properties/ime-mode.json
+++ b/css/properties/ime-mode.json
@@ -41,7 +41,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/initial-letter.json b/css/properties/initial-letter.json
index 1e596d4d4eeadc..00a977a8446f07 100644
--- a/css/properties/initial-letter.json
+++ b/css/properties/initial-letter.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/initial-letter",
           "spec_url": "https://drafts.csswg.org/css-inline/#sizing-drop-initials",
+          "tags": [
+            "web-features:initial-letter"
+          ],
           "support": {
             "chrome": {
               "version_added": "110"
@@ -25,11 +28,12 @@
             "safari": {
               "prefix": "-webkit-",
               "version_added": "9",
-              "notes": "See <a href='https://webkit.org/b/229090'>bug 229090</a> for the unprefixed property."
+              "notes": "See [bug 229090](https://webkit.org/b/229090) for the unprefixed property."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline/#valdef-initial-letter-normal",
+            "tags": [
+              "web-features:initial-letter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "110"
@@ -61,7 +68,10 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/inline-size.json b/css/properties/inline-size.json
index b6aeaf1a99c62f..ef64bdb2b68d3f 100644
--- a/css/properties/inline-size.json
+++ b/css/properties/inline-size.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-logical/#dimension-properties",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -31,7 +34,8 @@
             "samsunginternet_android": {
               "version_added": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,7 +45,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -68,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -79,6 +84,9 @@
         },
         "fit-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -109,7 +117,8 @@
                 "alternative_name": "-webkit-fill-available",
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -120,7 +129,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -148,7 +160,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -159,6 +172,9 @@
         },
         "max-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -188,7 +204,8 @@
               "samsunginternet_android": {
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -199,6 +216,9 @@
         },
         "min-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -228,7 +248,8 @@
               "samsunginternet_android": {
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/inset-block-end.json b/css/properties/inset-block-end.json
index 28707ec513e936..743653032b41ad 100644
--- a/css/properties/inset-block-end.json
+++ b/css/properties/inset-block-end.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/inset-block-end",
           "spec_url": "https://drafts.csswg.org/css-logical/#position-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +47,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -82,6 +87,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-3/#valdef-top-auto",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/inset-block-start.json b/css/properties/inset-block-start.json
index 8b2c437dfb270e..edce7aaee46a81 100644
--- a/css/properties/inset-block-start.json
+++ b/css/properties/inset-block-start.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/inset-block-start",
           "spec_url": "https://drafts.csswg.org/css-logical/#position-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +47,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -82,6 +87,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-3/#valdef-top-auto",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/inset-block.json b/css/properties/inset-block.json
index c71585dce36043..aefa9166f67893 100644
--- a/css/properties/inset-block.json
+++ b/css/properties/inset-block.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/inset-block",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-inset-block",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +47,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -82,6 +87,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-3/#valdef-top-auto",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/inset-inline-end.json b/css/properties/inset-inline-end.json
index 6650c9af992840..9626fd7012c1a2 100644
--- a/css/properties/inset-inline-end.json
+++ b/css/properties/inset-inline-end.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/inset-inline-end",
           "spec_url": "https://drafts.csswg.org/css-logical/#position-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +47,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -82,6 +87,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-3/#valdef-top-auto",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/inset-inline-start.json b/css/properties/inset-inline-start.json
index 93cd8d023a78f1..3359e4b76ee780 100644
--- a/css/properties/inset-inline-start.json
+++ b/css/properties/inset-inline-start.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/inset-inline-start",
           "spec_url": "https://drafts.csswg.org/css-logical/#position-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +47,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -82,6 +87,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-3/#valdef-top-auto",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/inset-inline.json b/css/properties/inset-inline.json
index 3453e079905492..649edda43fce8c 100644
--- a/css/properties/inset-inline.json
+++ b/css/properties/inset-inline.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/inset-inline",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-inset-inline",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +47,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -82,6 +87,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-3/#valdef-top-auto",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/inset.json b/css/properties/inset.json
index 24558e12bf0d0f..fd6e8e14d2b73c 100644
--- a/css/properties/inset.json
+++ b/css/properties/inset.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/inset",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-inset",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,7 +40,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -63,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -75,6 +80,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-3/#valdef-top-auto",
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -96,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/interpolate-size.json b/css/properties/interpolate-size.json
new file mode 100644
index 00000000000000..49abe15f716256
--- /dev/null
+++ b/css/properties/interpolate-size.json
@@ -0,0 +1,118 @@
+{
+  "css": {
+    "properties": {
+      "interpolate-size": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/interpolate-size",
+          "spec_url": "https://drafts.csswg.org/css-values-5/#interpolate-size",
+          "tags": [
+            "web-features:interpolate-size"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        },
+        "allow-keywords": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-values-5/#valdef-interpolate-size-allow-keywords",
+            "tags": [
+              "web-features:interpolate-size"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "129"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "numeric-only": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-values-5/#valdef-interpolate-size-numeric-only",
+            "tags": [
+              "web-features:interpolate-size"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "129"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/css/properties/isolation.json b/css/properties/isolation.json
index 2cb9d899191dde..10a8808877afa9 100644
--- a/css/properties/isolation.json
+++ b/css/properties/isolation.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/isolation",
           "spec_url": "https://drafts.fxtf.org/compositing/#isolation",
+          "tags": [
+            "web-features:isolation"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/justify-content.json b/css/properties/justify-content.json
index adee434ab83d8c..34fe6c8b9f78b4 100644
--- a/css/properties/justify-content.json
+++ b/css/properties/justify-content.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-align/#align-justify-content",
             "https://drafts.csswg.org/css-flexbox/#justify-content-property"
           ],
+          "tags": [
+            "web-features:flexbox"
+          ],
           "support": {
             "chrome": [
               {
@@ -59,7 +62,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,7 +117,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -123,7 +128,10 @@
           },
           "left_right": {
             "__compat": {
-              "description": "<code>left</code> and <code>right</code>",
+              "description": "`left` and `right`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "93"
@@ -149,7 +157,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -160,7 +169,10 @@
           },
           "safe_unsafe": {
             "__compat": {
-              "description": "<code>safe</code> and <code>unsafe</code>",
+              "description": "`safe` and `unsafe`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "115",
@@ -179,11 +191,12 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": "18"
+                  "version_added": "17.6"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -194,6 +207,9 @@
           },
           "space-evenly": {
             "__compat": {
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "60"
@@ -215,7 +231,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -226,7 +243,10 @@
           },
           "start_end": {
             "__compat": {
-              "description": "<code>start</code> and <code>end</code>",
+              "description": "`start` and `end`",
+              "tags": [
+                "web-features:flexbox"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "93"
@@ -248,7 +268,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -283,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -334,7 +356,8 @@
               },
               "webview_android": {
                 "version_added": "57"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/justify-items.json b/css/properties/justify-items.json
index 5c99e95b9562c7..827488534d26c8 100644
--- a/css/properties/justify-items.json
+++ b/css/properties/justify-items.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/justify-items",
           "spec_url": "https://drafts.csswg.org/css-align/#justify-items-property",
+          "tags": [
+            "web-features:flexbox"
+          ],
           "support": {
             "chrome": {
               "version_added": "52"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -68,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -111,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -152,7 +158,8 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/justify-self.json b/css/properties/justify-self.json
index a99e78a7fccc57..4d978423e2e463 100644
--- a/css/properties/justify-self.json
+++ b/css/properties/justify-self.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/justify-self",
           "spec_url": "https://drafts.csswg.org/css-align/#justify-self-property",
+          "tags": [
+            "web-features:grid"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -30,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -66,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -98,7 +103,7 @@
                 "prefix": "-ms-",
                 "version_added": "10",
                 "partial_implementation": true,
-                "notes": "Internet Explorer 10 and 11 have the property <code>-ms-grid-column-align</code>, which acts in a similar way to <code>justify-self</code>."
+                "notes": "Internet Explorer 10 and 11 have the property `-ms-grid-column-align`, which acts in a similar way to `justify-self`."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -110,7 +115,46 @@
               "samsunginternet_android": {
                 "version_added": "6.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "position_absolute_context": {
+          "__compat": {
+            "description": "Supported for absolutely-positioned boxes",
+            "spec_url": "https://drafts.csswg.org/css-align/#justify-self-property",
+            "tags": [
+              "web-features:absolute-positioning"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "122"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "134"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/left.json b/css/properties/left.json
index 1706a1773bb041..2e1f6bbd17e274 100644
--- a/css/properties/left.json
+++ b/css/properties/left.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/left",
           "spec_url": "https://drafts.csswg.org/css-position/#insets",
+          "tags": [
+            "web-features:physical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,7 +44,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -67,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -79,6 +84,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position/#valdef-top-auto",
+            "tags": [
+              "web-features:physical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -102,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/letter-spacing.json b/css/properties/letter-spacing.json
index 4912c73c10bb60..2f1f901fffef5f 100644
--- a/css/properties/letter-spacing.json
+++ b/css/properties/letter-spacing.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/letter-spacing",
           "spec_url": "https://drafts.csswg.org/css-text/#letter-spacing-property",
+          "tags": [
+            "web-features:letter-spacing"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-letter-spacing-normal",
+            "tags": [
+              "web-features:letter-spacing"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
         "svg_elements": {
           "__compat": {
             "description": "On SVG elements",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -105,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/lighting-color.json b/css/properties/lighting-color.json
index 6171abfdbfeea9..10bbe2ee61b3cb 100644
--- a/css/properties/lighting-color.json
+++ b/css/properties/lighting-color.json
@@ -3,7 +3,11 @@
     "properties": {
       "lighting-color": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/lighting-color",
           "spec_url": "https://drafts.fxtf.org/filter-effects-1/#LightingColorProperty",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -27,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/line-break.json b/css/properties/line-break.json
index e978e1a2687eb2..c27e7ef2ab42d5 100644
--- a/css/properties/line-break.json
+++ b/css/properties/line-break.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/line-break",
           "spec_url": "https://drafts.csswg.org/css-text/#line-break-property",
+          "tags": [
+            "web-features:line-break"
+          ],
           "support": {
             "chrome": [
               {
@@ -59,7 +62,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,14 +74,17 @@
         "anywhere": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-line-break-anywhere",
+            "tags": [
+              "web-features:line-break"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "83"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "69"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -87,11 +94,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "13"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +111,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-line-break-auto",
+            "tags": [
+              "web-features:line-break"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤83"
@@ -112,7 +123,9 @@
               "firefox": {
                 "version_added": "≤72"
               },
-              "firefox_android": "mirror",
+              "firefox_android": {
+                "version_added": "79"
+              },
               "ie": {
                 "version_added": false
               },
@@ -124,7 +137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,6 +150,9 @@
         "loose": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-line-break-loose",
+            "tags": [
+              "web-features:line-break"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤83"
@@ -145,7 +162,9 @@
               "firefox": {
                 "version_added": "≤72"
               },
-              "firefox_android": "mirror",
+              "firefox_android": {
+                "version_added": "79"
+              },
               "ie": {
                 "version_added": false
               },
@@ -157,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -169,6 +189,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-line-break-normal",
+            "tags": [
+              "web-features:line-break"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -178,7 +201,9 @@
               "firefox": {
                 "version_added": "≤72"
               },
-              "firefox_android": "mirror",
+              "firefox_android": {
+                "version_added": "79"
+              },
               "ie": {
                 "version_added": false
               },
@@ -190,7 +215,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -202,6 +228,9 @@
         "strict": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-line-break-strict",
+            "tags": [
+              "web-features:line-break"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤83"
@@ -211,7 +240,9 @@
               "firefox": {
                 "version_added": "≤72"
               },
-              "firefox_android": "mirror",
+              "firefox_android": {
+                "version_added": "79"
+              },
               "ie": {
                 "version_added": false
               },
@@ -223,7 +254,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/line-clamp.json b/css/properties/line-clamp.json
index 3614f64b217bc2..325c2873adde2a 100644
--- a/css/properties/line-clamp.json
+++ b/css/properties/line-clamp.json
@@ -30,13 +30,19 @@
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
-            "safari": {
-              "prefix": "-webkit-",
-              "version_added": "5"
-            },
+            "safari": [
+              {
+                "version_added": "18.2"
+              },
+              {
+                "prefix": "-webkit-",
+                "version_added": "5"
+              }
+            ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +52,9 @@
         },
         "none": {
           "__compat": {
+            "tags": [
+              "web-features:line-clamp"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -63,14 +72,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
diff --git a/css/properties/line-height-step.json b/css/properties/line-height-step.json
index 13e467bbbd1bf6..5497b43ab35ae4 100644
--- a/css/properties/line-height-step.json
+++ b/css/properties/line-height-step.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/line-height-step",
           "spec_url": "https://drafts.csswg.org/css-rhythm/#line-height-step",
+          "tags": [
+            "web-features:rhythmic-sizing"
+          ],
           "support": {
             "chrome": {
               "version_added": "60",
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/line-height.json b/css/properties/line-height.json
index 8f40821b01e144..adcec07503b21e 100644
--- a/css/properties/line-height.json
+++ b/css/properties/line-height.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/line-height",
           "spec_url": "https://drafts.csswg.org/css-inline/#line-height-property",
+          "tags": [
+            "web-features:line-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-inline/#valdef-line-height-normal",
+            "tags": [
+              "web-features:line-height"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/list-style-image.json b/css/properties/list-style-image.json
index 592c67294b718f..9a627524a92c40 100644
--- a/css/properties/list-style-image.json
+++ b/css/properties/list-style-image.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/list-style-image",
           "spec_url": "https://drafts.csswg.org/css-lists/#image-markers",
+          "tags": [
+            "web-features:list-style"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 86, this property did not accept an <code>&lt;image&gt;</code> type, and required the URL of an image."
+              "notes": "Before Firefox 86, this property did not accept an `&lt;image&gt;` type, and required the URL of an image."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-lists/#valdef-list-style-image-none",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/list-style-position.json b/css/properties/list-style-position.json
index 5b87059bf455b3..6bd3cd6b4f9d4d 100644
--- a/css/properties/list-style-position.json
+++ b/css/properties/list-style-position.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/list-style-position",
           "spec_url": "https://drafts.csswg.org/css-lists/#list-style-position-property",
+          "tags": [
+            "web-features:list-style"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -27,11 +30,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "1",
-              "notes": "In Safari, if a block element is the first child of a list element declared as <code>list-style-position: inside</code>, then the marker box is placed on the same line as the block element."
+              "notes": "In Safari, if a block element is the first child of a list element declared as `list-style-position: inside`, then the marker box is placed on the same line as the block element."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         "inside": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-lists/#valdef-list-style-position-inside",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,6 +85,9 @@
         "outside": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-lists/#list-style-position-outside",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -100,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/list-style-type.json b/css/properties/list-style-type.json
index 6c8e5fff02aa33..9ac8f14cafb7bd 100644
--- a/css/properties/list-style-type.json
+++ b/css/properties/list-style-type.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-lists/#text-markers",
             "https://drafts.csswg.org/css-counter-styles/#extending-css2"
           ],
+          "tags": [
+            "web-features:list-style"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -37,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤4.4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,11 +81,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -118,11 +123,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -159,11 +165,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -171,6 +178,9 @@
         "arabic-indic": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-arabic-indic",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -198,7 +208,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -210,6 +221,9 @@
         "armenian": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#armenian",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -237,7 +251,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -275,11 +290,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -287,6 +303,9 @@
         "bengali": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-bengali",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -314,7 +333,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -352,11 +372,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -364,6 +385,9 @@
         "cambodian": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-cambodian",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -385,7 +409,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -397,6 +422,9 @@
         "circle": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#circle",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -424,7 +452,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -436,6 +465,9 @@
         "cjk-decimal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#cjk-decimal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -457,7 +489,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -469,6 +502,9 @@
         "cjk-earthly-branch": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-cjk-earthly-branch",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -496,7 +532,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -508,6 +545,9 @@
         "cjk-heavenly-stem": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-cjk-heavenly-stem",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -535,7 +575,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -547,6 +588,9 @@
         "cjk-ideographic": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#cjk-ideographic",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -586,7 +630,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -598,6 +643,9 @@
         "decimal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#decimal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -625,7 +673,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -637,6 +686,9 @@
         "decimal-leading-zero": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#decimal-leading-zero",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -664,7 +716,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -676,6 +729,9 @@
         "devanagari": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-devanagari",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -703,7 +759,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -715,6 +772,9 @@
         "disc": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#disc",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -742,7 +802,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -754,6 +815,9 @@
         "disclosure-closed": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#disclosure-closed",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -775,7 +839,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -787,6 +852,9 @@
         "disclosure-open": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#disclosure-open",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -808,7 +876,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -849,11 +918,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -890,11 +960,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -931,11 +1002,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -972,11 +1044,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1013,11 +1086,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1054,11 +1128,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1087,11 +1162,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1128,11 +1204,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1169,11 +1246,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1202,11 +1280,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1243,11 +1322,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1284,11 +1364,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1325,11 +1406,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1366,11 +1448,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1407,11 +1490,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1442,11 +1526,12 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1477,11 +1562,12 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1518,11 +1604,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1530,6 +1617,9 @@
         "ethiopic-numeric": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-ethiopic-numeric",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -1539,7 +1629,7 @@
               "firefox": [
                 {
                   "version_added": "33",
-                  "notes": "Before Firefox 38, Firefox added a dot as suffix of the number for <code>ethiopic-numeric</code> (for example, ፫. instead of ፫). The specification later defined the absence of a suffix, which Firefox 38 followed."
+                  "notes": "Before Firefox 38, Firefox added a dot as suffix of the number for `ethiopic-numeric` (for example, ፫. instead of ፫). The specification later defined the absence of a suffix, which Firefox 38 followed."
                 },
                 {
                   "prefix": "-moz-",
@@ -1558,7 +1648,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1596,11 +1687,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1608,6 +1700,9 @@
         "georgian": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#georgian",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1635,7 +1730,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1647,6 +1743,9 @@
         "gujarati": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-gujarati",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -1674,7 +1773,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1686,6 +1786,9 @@
         "gurmukhi": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-gurmukhi",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -1713,7 +1816,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1746,11 +1850,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1779,11 +1884,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -1791,6 +1897,9 @@
         "hebrew": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#hebrew",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1814,7 +1923,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1826,6 +1936,9 @@
         "hiragana": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#hiragana",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1849,7 +1962,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1861,6 +1975,9 @@
         "hiragana-iroha": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#hiragana-iroha",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1884,7 +2001,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1896,6 +2014,9 @@
         "japanese-formal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#japanese-formal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -1923,7 +2044,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1935,6 +2057,9 @@
         "japanese-informal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#japanese-informal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -1962,7 +2087,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1974,6 +2100,9 @@
         "kannada": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-kannada",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -2001,7 +2130,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2013,6 +2143,9 @@
         "katakana": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#katakana",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -2036,7 +2169,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2048,6 +2182,9 @@
         "katakana-iroha": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#katakana-iroha",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -2071,7 +2208,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2083,6 +2221,9 @@
         "khmer": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-khmer",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -2110,7 +2251,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2122,6 +2264,9 @@
         "korean-hangul-formal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#korean-hangul-formal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "45"
@@ -2143,7 +2288,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2155,6 +2301,9 @@
         "korean-hanja-formal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#korean-hanja-formal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "45"
@@ -2176,7 +2325,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2188,6 +2338,9 @@
         "korean-hanja-informal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#korean-hanja-informal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "45"
@@ -2209,7 +2362,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2221,6 +2375,9 @@
         "lao": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-lao",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -2248,7 +2405,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2260,6 +2418,9 @@
         "lower-alpha": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#lower-alpha",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -2287,7 +2448,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2299,6 +2461,9 @@
         "lower-armenian": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-lower-armenian",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -2320,7 +2485,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2332,6 +2498,9 @@
         "lower-greek": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#lower-greek",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -2359,7 +2528,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2400,11 +2570,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -2412,6 +2583,9 @@
         "lower-latin": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#lower-latin",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -2441,7 +2615,8 @@
               "samsunginternet_android": {
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2482,11 +2657,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -2494,6 +2670,9 @@
         "lower-roman": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#lower-roman",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -2521,7 +2700,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2533,6 +2713,9 @@
         "malayalam": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-malayalam",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -2560,7 +2743,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2572,6 +2756,9 @@
         "mongolian": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-mongolian",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -2593,7 +2780,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2605,6 +2793,9 @@
         "myanmar": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-myanmar",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -2632,7 +2823,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2644,6 +2836,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-lists-3/#valdef-list-style-type-none",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -2667,7 +2862,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2705,11 +2901,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -2717,6 +2914,9 @@
         "oriya": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-oriya",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -2744,7 +2944,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2782,11 +2983,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -2794,6 +2996,9 @@
         "persian": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-persian",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -2821,7 +3026,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2859,11 +3065,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -2871,6 +3078,9 @@
         "simp-chinese-formal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#simp-chinese-formal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "45"
@@ -2898,7 +3108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2910,6 +3121,9 @@
         "simp-chinese-informal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#simp-chinese-informal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "45"
@@ -2937,7 +3151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2975,11 +3190,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -2987,6 +3203,9 @@
         "square": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#square",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -3014,7 +3233,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3025,7 +3245,10 @@
         },
         "string": {
           "__compat": {
-            "description": "<code>&lt;string&gt;</code>",
+            "description": "`&lt;string&gt;`",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "79"
@@ -3047,7 +3270,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3060,6 +3284,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/symbols",
             "spec_url": "https://drafts.csswg.org/css-counter-styles/#symbols-function",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -3081,7 +3308,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3093,6 +3321,9 @@
         "tamil": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-tamil",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -3120,7 +3351,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3132,6 +3364,9 @@
         "telugu": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-telugu",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -3159,7 +3394,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3171,6 +3407,9 @@
         "thai": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-thai",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -3198,7 +3437,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3210,6 +3450,9 @@
         "tibetan": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-tibetan",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -3231,7 +3474,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3269,11 +3513,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -3307,11 +3552,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -3345,11 +3591,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -3383,11 +3630,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -3421,11 +3669,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -3433,6 +3682,9 @@
         "trad-chinese-formal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#trad-chinese-formal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "45"
@@ -3460,7 +3712,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3472,6 +3725,9 @@
         "trad-chinese-informal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#trad-chinese-informal",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "45"
@@ -3499,7 +3755,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3511,6 +3768,9 @@
         "upper-alpha": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#upper-alpha",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -3538,7 +3798,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3550,6 +3811,9 @@
         "upper-armenian": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#valdef-counter-style-name-upper-armenian",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -3571,7 +3835,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3621,11 +3886,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -3662,11 +3928,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -3674,6 +3941,9 @@
         "upper-latin": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#upper-latin",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -3701,7 +3971,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3742,11 +4013,12 @@
               "webview_android": {
                 "version_added": "3",
                 "version_removed": "45"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
@@ -3754,6 +4026,9 @@
         "upper-roman": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-counter-styles-3/#upper-roman",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -3781,7 +4056,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3814,11 +4090,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
+              "standard_track": false,
               "deprecated": false
             }
           }
diff --git a/css/properties/list-style.json b/css/properties/list-style.json
index aad3d629fcd57d..1d16ad11efd4e0 100644
--- a/css/properties/list-style.json
+++ b/css/properties/list-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/list-style",
           "spec_url": "https://drafts.csswg.org/css-lists/#list-style-property",
+          "tags": [
+            "web-features:list-style"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/symbols",
             "spec_url": "https://drafts.csswg.org/css-counter-styles/#symbols-function",
+            "tags": [
+              "web-features:list-style"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/margin-block-end.json b/css/properties/margin-block-end.json
index 5ead0dd6e9402d..fb6887f9a09c37 100644
--- a/css/properties/margin-block-end.json
+++ b/css/properties/margin-block-end.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-block-end",
           "spec_url": "https://drafts.csswg.org/css-logical/#margin-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/margin-block-start.json b/css/properties/margin-block-start.json
index 66b9658cb81d95..ffdda1c6138c02 100644
--- a/css/properties/margin-block-start.json
+++ b/css/properties/margin-block-start.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-block-start",
           "spec_url": "https://drafts.csswg.org/css-logical/#margin-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/margin-block.json b/css/properties/margin-block.json
index 15237e5266a3e5..eddb6e745ded21 100644
--- a/css/properties/margin-block.json
+++ b/css/properties/margin-block.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-block",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-margin-block",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/margin-bottom.json b/css/properties/margin-bottom.json
index a6cbaa7ac78a75..bcc4024df8450e 100644
--- a/css/properties/margin-bottom.json
+++ b/css/properties/margin-bottom.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-bottom",
           "spec_url": "https://drafts.csswg.org/css-box/#margin-physical",
+          "tags": [
+            "web-features:margin"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:margin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -49,7 +56,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "firefox": {
                 "version_added": "1"
@@ -57,7 +64,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "6",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "oculus": "mirror",
               "opera": {
@@ -71,7 +78,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/margin-inline-end.json b/css/properties/margin-inline-end.json
index c799a5c14429d5..e7d9c515594bf9 100644
--- a/css/properties/margin-inline-end.json
+++ b/css/properties/margin-inline-end.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-inline-end",
           "spec_url": "https://drafts.csswg.org/css-logical/#margin-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": [
               {
@@ -60,7 +63,8 @@
                 "alternative_name": "-webkit-margin-end",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/margin-inline-start.json b/css/properties/margin-inline-start.json
index 2d30eeb169ee60..2750a33f874f0f 100644
--- a/css/properties/margin-inline-start.json
+++ b/css/properties/margin-inline-start.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-inline-start",
           "spec_url": "https://drafts.csswg.org/css-logical/#margin-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": [
               {
@@ -60,7 +63,8 @@
                 "alternative_name": "-webkit-margin-start",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/margin-inline.json b/css/properties/margin-inline.json
index c79118853843cc..abcb5a8bac95de 100644
--- a/css/properties/margin-inline.json
+++ b/css/properties/margin-inline.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-inline",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-margin-inline",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/margin-left.json b/css/properties/margin-left.json
index 580b99419562d2..a82c674da2ad94 100644
--- a/css/properties/margin-left.json
+++ b/css/properties/margin-left.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-left",
           "spec_url": "https://drafts.csswg.org/css-box/#margin-physical",
+          "tags": [
+            "web-features:margin"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:margin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -49,7 +56,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "firefox": {
                 "version_added": "1"
@@ -57,7 +64,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "6",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "oculus": "mirror",
               "opera": {
@@ -71,7 +78,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/margin-right.json b/css/properties/margin-right.json
index 29dae94803680f..8510fdb42489ba 100644
--- a/css/properties/margin-right.json
+++ b/css/properties/margin-right.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-right",
           "spec_url": "https://drafts.csswg.org/css-box/#margin-physical",
+          "tags": [
+            "web-features:margin"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:margin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -49,7 +56,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "firefox": {
                 "version_added": "1"
@@ -57,7 +64,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "6",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "oculus": "mirror",
               "opera": {
@@ -71,7 +78,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/margin-top.json b/css/properties/margin-top.json
index a404c28d0947eb..75705514de3b19 100644
--- a/css/properties/margin-top.json
+++ b/css/properties/margin-top.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin-top",
           "spec_url": "https://drafts.csswg.org/css-box/#margin-physical",
+          "tags": [
+            "web-features:margin"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:margin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -49,7 +56,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "firefox": {
                 "version_added": "1"
@@ -57,7 +64,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "6",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "oculus": "mirror",
               "opera": {
@@ -71,7 +78,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/margin-trim.json b/css/properties/margin-trim.json
index 64a2c684743217..055f7ef6732911 100644
--- a/css/properties/margin-trim.json
+++ b/css/properties/margin-trim.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -106,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -144,7 +147,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -182,7 +186,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -220,7 +225,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -258,7 +264,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -296,7 +303,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/margin.json b/css/properties/margin.json
index 2d0fc99c7510e9..43283da0f4c9ab 100644
--- a/css/properties/margin.json
+++ b/css/properties/margin.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/margin",
           "spec_url": "https://drafts.csswg.org/css-box/#margin",
+          "tags": [
+            "web-features:margin"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:margin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -49,7 +56,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "firefox": {
                 "version_added": "1"
@@ -57,7 +64,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "6",
-                "notes": "The <code>auto</code> value is not supported in quirks mode."
+                "notes": "The `auto` value is not supported in quirks mode."
               },
               "oculus": "mirror",
               "opera": {
@@ -71,7 +78,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/marker-end.json b/css/properties/marker-end.json
index 654afb47efbfec..474794c9e4cabb 100644
--- a/css/properties/marker-end.json
+++ b/css/properties/marker-end.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/marker-end",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#VertexMarkerProperties",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/marker-mid.json b/css/properties/marker-mid.json
index e944b203a951dc..f2f312aa242a65 100644
--- a/css/properties/marker-mid.json
+++ b/css/properties/marker-mid.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/marker-mid",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#VertexMarkerProperties",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/marker-start.json b/css/properties/marker-start.json
index 895c6374d6fec8..1f5722ba566e7e 100644
--- a/css/properties/marker-start.json
+++ b/css/properties/marker-start.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/marker-start",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#VertexMarkerProperties",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/marker.json b/css/properties/marker.json
index ce0024eb98e29a..944cd63a247ec9 100644
--- a/css/properties/marker.json
+++ b/css/properties/marker.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/marker",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#MarkerShorthand",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-border-outset.json b/css/properties/mask-border-outset.json
index cc50685603b72f..ba73be435bb260 100644
--- a/css/properties/mask-border-outset.json
+++ b/css/properties/mask-border-outset.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/mask-border-outset",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-mask-border-outset",
+          "tags": [
+            "web-features:mask-border"
+          ],
           "support": {
             "chrome": {
               "alternative_name": "-webkit-mask-box-image-outset",
@@ -37,7 +40,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-border-repeat.json b/css/properties/mask-border-repeat.json
index 091ad3c02eb9bb..3c3ac5e0a211ab 100644
--- a/css/properties/mask-border-repeat.json
+++ b/css/properties/mask-border-repeat.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/mask-border-repeat",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-mask-border-repeat",
+          "tags": [
+            "web-features:mask-border"
+          ],
           "support": {
             "chrome": {
               "alternative_name": "-webkit-mask-box-image-repeat",
@@ -37,7 +40,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-border-slice.json b/css/properties/mask-border-slice.json
index e33a2a3cafd35a..5d39f600dd956d 100644
--- a/css/properties/mask-border-slice.json
+++ b/css/properties/mask-border-slice.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/mask-border-slice",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-mask-border-slice",
+          "tags": [
+            "web-features:mask-border"
+          ],
           "support": {
             "chrome": {
               "alternative_name": "-webkit-mask-box-image-slice",
@@ -37,7 +40,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-border-source.json b/css/properties/mask-border-source.json
index c7e762894df36d..66973eb42ee12a 100644
--- a/css/properties/mask-border-source.json
+++ b/css/properties/mask-border-source.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/mask-border-source",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-mask-border-source",
+          "tags": [
+            "web-features:mask-border"
+          ],
           "support": {
             "chrome": {
               "alternative_name": "-webkit-mask-box-image-source",
@@ -37,7 +40,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-border-width.json b/css/properties/mask-border-width.json
index 624fd54ce63af7..e73b0edd24248e 100644
--- a/css/properties/mask-border-width.json
+++ b/css/properties/mask-border-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/mask-border-width",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-mask-border-width",
+          "tags": [
+            "web-features:mask-border"
+          ],
           "support": {
             "chrome": {
               "alternative_name": "-webkit-mask-box-image-width",
@@ -37,7 +40,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-border.json b/css/properties/mask-border.json
index 9c010ea31b1318..c52e94ffa36141 100644
--- a/css/properties/mask-border.json
+++ b/css/properties/mask-border.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/mask-border",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-mask-border",
+          "tags": [
+            "web-features:mask-border"
+          ],
           "support": {
             "chrome": {
               "alternative_name": "-webkit-mask-box-image",
@@ -37,7 +40,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-clip.json b/css/properties/mask-clip.json
index ee6c6fbd0b8baa..f4626f38e4e5f2 100644
--- a/css/properties/mask-clip.json
+++ b/css/properties/mask-clip.json
@@ -44,7 +44,8 @@
             "webview_android": {
               "prefix": "-webkit-",
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -54,6 +55,9 @@
         },
         "border": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -77,6 +81,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
+              },
+              "webview_ios": {
+                "version_added": false
               }
             },
             "status": {
@@ -88,6 +95,9 @@
         },
         "content": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -111,6 +121,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
+              },
+              "webview_ios": {
+                "version_added": false
               }
             },
             "status": {
@@ -122,6 +135,9 @@
         },
         "padding": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -145,6 +161,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
+              },
+              "webview_ios": {
+                "version_added": false
               }
             },
             "status": {
@@ -156,6 +175,9 @@
         },
         "text": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -179,6 +201,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
+              },
+              "webview_ios": {
+                "version_added": false
               }
             },
             "status": {
diff --git a/css/properties/mask-composite.json b/css/properties/mask-composite.json
index 8de48b423479e1..2382adb62e1644 100644
--- a/css/properties/mask-composite.json
+++ b/css/properties/mask-composite.json
@@ -11,13 +11,13 @@
           "support": {
             "chrome": {
               "version_added": "120",
-              "notes": "See also <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-composite'><code>-webkit-mask-composite</code></a> for a similar non-standard property that uses different keywords."
+              "notes": "See also [`-webkit-mask-composite`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-composite) for a similar non-standard property that uses different keywords."
             },
             "chrome_android": "mirror",
             "edge": [
               {
                 "version_added": "120",
-                "notes": "See also <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-composite'><code>-webkit-mask-composite</code></a> for a similar non-standard property that uses different keywords."
+                "notes": "See also [`-webkit-mask-composite`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-composite) for a similar non-standard property that uses different keywords."
               },
               {
                 "version_added": "18",
@@ -42,11 +42,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "15.4",
-              "notes": "See also <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-composite'><code>-webkit-mask-composite</code></a> for a similar non-standard property that uses different keywords."
+              "notes": "See also [`-webkit-mask-composite`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-composite) for a similar non-standard property that uses different keywords."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -57,6 +58,9 @@
         "add": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-mask-composite-add",
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -78,7 +82,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -90,6 +95,9 @@
         "exclude": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-mask-composite-exclude",
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -111,7 +119,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -123,6 +132,9 @@
         "intersect": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-mask-composite-intersect",
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -144,7 +156,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,6 +169,9 @@
         "subtract": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-mask-composite-subtract",
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -177,7 +193,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/mask-image.json b/css/properties/mask-image.json
index 53c002d693f9ac..3d549811d0a9f0 100644
--- a/css/properties/mask-image.json
+++ b/css/properties/mask-image.json
@@ -16,7 +16,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "From version 8, Chrome added support for gradient values. Initially, Chrome supported only <code>-webkit-</code> prefixed values for gradients (such as <code>-webkit-linear-gradient()</code>). Later, support for unprefixed values was added."
+                "notes": "From version 8, Chrome added support for gradient values. Initially, Chrome supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added."
               }
             ],
             "chrome_android": "mirror",
@@ -56,7 +56,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "4",
-                "notes": "Initially, Safari supported only <code>-webkit-</code> prefixed values for gradients (such as <code>-webkit-linear-gradient()</code>). Later, support for unprefixed values was added."
+                "notes": "Initially, Safari supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added."
               }
             ],
             "safari_ios": "mirror",
@@ -67,8 +67,9 @@
             "webview_android": {
               "prefix": "-webkit-",
               "version_added": "2",
-              "notes": "Initially, Android supported only <code>-webkit-</code> prefixed values for gradients (such as <code>-webkit-linear-gradient()</code>). Later, support for unprefixed values was added."
-            }
+              "notes": "Initially, Android supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,6 +80,9 @@
         "multiple_mask_images": {
           "__compat": {
             "description": "Multiple mask images",
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -102,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,6 +119,9 @@
         "svg_masks": {
           "__compat": {
             "description": "SVG masks",
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "8"
@@ -137,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/mask-mode.json b/css/properties/mask-mode.json
index 2f536b6a181cd7..89ae93a1466c95 100644
--- a/css/properties/mask-mode.json
+++ b/css/properties/mask-mode.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "alpha": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-mask-mode-alpha",
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -73,6 +78,9 @@
         "luminance": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-mask-mode-luminance",
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -94,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -106,6 +115,9 @@
         "match-source": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-mask-mode-match-source",
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -127,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/mask-origin.json b/css/properties/mask-origin.json
index 059ac603059911..3186dfaeffed72 100644
--- a/css/properties/mask-origin.json
+++ b/css/properties/mask-origin.json
@@ -44,7 +44,8 @@
             "webview_android": {
               "prefix": "-webkit-",
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -54,6 +55,9 @@
         },
         "border": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "prefix": "-webkit-",
@@ -85,7 +89,8 @@
               "webview_android": {
                 "prefix": "-webkit-",
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -96,6 +101,9 @@
         },
         "content": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "prefix": "-webkit-",
@@ -127,7 +135,8 @@
               "webview_android": {
                 "prefix": "-webkit-",
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -138,6 +147,9 @@
         },
         "fill-box": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -160,7 +172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -171,6 +184,9 @@
         },
         "padding": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "prefix": "-webkit-",
@@ -202,7 +218,8 @@
               "webview_android": {
                 "prefix": "-webkit-",
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -213,6 +230,9 @@
         },
         "stroke-box": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -235,7 +255,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -246,6 +267,9 @@
         },
         "view-box": {
           "__compat": {
+            "tags": [
+              "web-features:masks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "120"
@@ -268,7 +292,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/mask-position.json b/css/properties/mask-position.json
index 2795cd95d945dc..9185dee9e2b585 100644
--- a/css/properties/mask-position.json
+++ b/css/properties/mask-position.json
@@ -56,7 +56,8 @@
             "webview_android": {
               "prefix": "-webkit-",
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-repeat.json b/css/properties/mask-repeat.json
index decbd609fbe34d..c14cf8b7465501 100644
--- a/css/properties/mask-repeat.json
+++ b/css/properties/mask-repeat.json
@@ -56,7 +56,8 @@
             "webview_android": {
               "prefix": "-webkit-",
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-size.json b/css/properties/mask-size.json
index e56a2f5874bcb6..860f94bb78a2cf 100644
--- a/css/properties/mask-size.json
+++ b/css/properties/mask-size.json
@@ -61,7 +61,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/mask-type.json b/css/properties/mask-type.json
index 9fe41788e2c1bb..27954eb59e1bbd 100644
--- a/css/properties/mask-type.json
+++ b/css/properties/mask-type.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/mask-type",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-mask-type",
+          "tags": [
+            "web-features:mask-type"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "alpha": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-mask-type-alpha",
+            "tags": [
+              "web-features:mask-type"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "luminance": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/css-masking/#valdef-mask-type-luminance",
+            "tags": [
+              "web-features:mask-type"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/mask.json b/css/properties/mask.json
index 0ca1ea4a0ed0fb..24c8a4a6c94082 100644
--- a/css/properties/mask.json
+++ b/css/properties/mask.json
@@ -16,7 +16,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment'><code>-webkit-mask-attachment</code></a> property."
+                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard [`-webkit-mask-attachment`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment) property."
               },
               {
                 "version_added": "1",
@@ -33,7 +33,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "79",
-                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment'><code>-webkit-mask-attachment</code></a> property."
+                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard [`-webkit-mask-attachment`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment) property."
               },
               {
                 "version_added": "79",
@@ -54,7 +54,7 @@
                 "version_added": "2",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "Only supports <code>mask: url(file.svg#mask_id)</code> or <code>mask: url(#mask_id)</code>, where the URL is a reference to an SVG <code>&lt;mask&gt;</code> element."
+                "notes": "Only supports `mask: url(file.svg#mask_id)` or `mask: url(#mask_id)`, where the URL is a reference to an SVG `&lt;mask&gt;` element."
               }
             ],
             "firefox_android": "mirror",
@@ -71,7 +71,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "3.1",
-                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment'><code>-webkit-mask-attachment</code></a> property."
+                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard [`-webkit-mask-attachment`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment) property."
               },
               {
                 "version_added": "3.1",
@@ -89,7 +89,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "2",
-                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment'><code>-webkit-mask-attachment</code></a> property."
+                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard [`-webkit-mask-attachment`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment) property."
               },
               {
                 "version_added": "2",
@@ -97,7 +97,8 @@
                 "partial_implementation": true,
                 "notes": "While the property is recognized, values applied to it don't have any effect."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/math-depth.json b/css/properties/math-depth.json
index 17c49b60297d51..3a0b3149bb2b89 100644
--- a/css/properties/math-depth.json
+++ b/css/properties/math-depth.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/math-depth",
           "spec_url": "https://w3c.github.io/mathml-core/#the-math-script-level-property",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/math-shift.json b/css/properties/math-shift.json
index 33bb3e69ab6c35..51e8a12165b1a7 100644
--- a/css/properties/math-shift.json
+++ b/css/properties/math-shift.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/math-shift",
           "spec_url": "https://w3c.github.io/mathml-core/#the-math-shift",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/math-style.json b/css/properties/math-style.json
index 3ad68d621b0749..ccb7f3aff27c02 100644
--- a/css/properties/math-style.json
+++ b/css/properties/math-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/math-style",
           "spec_url": "https://w3c.github.io/mathml-core/#the-math-style-property",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/max-block-size.json b/css/properties/max-block-size.json
index 08447260b2bb29..91512e0be344f0 100644
--- a/css/properties/max-block-size.json
+++ b/css/properties/max-block-size.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-logical/#propdef-max-block-size",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -31,7 +34,8 @@
             "samsunginternet_android": {
               "version_added": "5.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,7 +45,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -68,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -79,6 +84,9 @@
         },
         "fit-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -103,7 +111,8 @@
                 "alternative_name": "-webkit-fill-available",
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,7 +123,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -142,7 +154,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -153,6 +166,9 @@
         },
         "max-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -182,7 +198,8 @@
               "samsunginternet_android": {
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -193,6 +210,9 @@
         },
         "min-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -222,7 +242,8 @@
               "samsunginternet_android": {
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/max-height.json b/css/properties/max-height.json
index a6c90d23478398..2565afc9808209 100644
--- a/css/properties/max-height.json
+++ b/css/properties/max-height.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-sizing-4/#width-height-keywords",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:min-max-width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "18"
@@ -18,7 +21,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "CSS 2.1 leaves the behavior of <code>max-height</code> with <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>table</code></a> undefined. Firefox supports applying <code>max-height</code> to <code>table</code> elements."
+              "notes": "CSS 2.1 leaves the behavior of `max-height` with [`table`](https://developer.mozilla.org/docs/Web/HTML/Element/table) undefined. Firefox supports applying `max-height` to `table` elements."
             },
             "firefox_android": {
               "version_added": "4"
@@ -29,7 +32,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "7",
-              "notes": "CSS 2.1 leaves the behavior of <code>max-height</code> with <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>table</code></a> undefined. Opera supports applying <code>max-height</code> to <code>table</code> elements."
+              "notes": "CSS 2.1 leaves the behavior of `max-height` with [`table`](https://developer.mozilla.org/docs/Web/HTML/Element/table) undefined. Opera supports applying `max-height` to `table` elements."
             },
             "opera_android": "mirror",
             "safari": {
@@ -37,7 +40,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,7 +51,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -74,7 +78,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -86,6 +91,9 @@
         "fit-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-width-fit-content",
+            "tags": [
+              "web-features:fit-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -106,7 +114,7 @@
                   "prefix": "-moz-",
                   "version_added": "3",
                   "partial_implementation": true,
-                  "notes": "Firefox implements the definitions given in CSS3 Basic Box. This defines <code>available</code> and not <code>fit-available</code>. Also, the definition of <code>fit-content</code> is simpler than in CSS3 Sizing."
+                  "notes": "Firefox implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing."
                 }
               ],
               "firefox_android": "mirror",
@@ -135,7 +143,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -146,7 +155,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -174,7 +186,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -186,6 +199,9 @@
         "max-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#valdef-width-max-content",
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -223,7 +239,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -235,6 +252,9 @@
         "min-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content",
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -272,7 +292,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -284,12 +305,17 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#valdef-max-width-none",
+            "tags": [
+              "web-features:min-max-width-height"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
               "firefox": {
                 "version_added": "1"
               },
@@ -305,7 +331,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -317,6 +344,9 @@
         "stretch": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-width-stretch",
+            "tags": [
+              "web-features:stretch"
+            ],
             "support": {
               "chrome": {
                 "alternative_name": "-webkit-fill-available",
@@ -339,7 +369,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/max-inline-size.json b/css/properties/max-inline-size.json
index 73e549cff5e8ae..39cfd05f7aef16 100644
--- a/css/properties/max-inline-size.json
+++ b/css/properties/max-inline-size.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-logical/#propdef-max-inline-size",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -35,7 +38,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -72,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -83,6 +88,9 @@
         },
         "fit-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -113,7 +121,8 @@
                 "alternative_name": "-webkit-fill-available",
                 "version_added": "7.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -124,7 +133,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -152,7 +164,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -163,6 +176,9 @@
         },
         "max-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -190,7 +206,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -201,6 +218,9 @@
         },
         "min-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -228,7 +248,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/max-width.json b/css/properties/max-width.json
index 85a1e748af5908..34ffcdb103ed79 100644
--- a/css/properties/max-width.json
+++ b/css/properties/max-width.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-sizing-4/#width-height-keywords",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:min-max-width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -18,7 +21,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "CSS 2.1 leaves the behavior of <code>max-width</code> with <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>table</code></a> undefined. Firefox supports applying <code>max-width</code> to <code>table</code> elements."
+              "notes": "CSS 2.1 leaves the behavior of `max-width` with [`table`](https://developer.mozilla.org/docs/Web/HTML/Element/table) undefined. Firefox supports applying `max-width` to `table` elements."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "4",
-              "notes": "CSS 2.1 leaves the behavior of <code>max-width</code> with <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>table</code></a> undefined. Opera supports applying <code>max-width</code> to <code>table</code> elements."
+              "notes": "CSS 2.1 leaves the behavior of `max-width` with [`table`](https://developer.mozilla.org/docs/Web/HTML/Element/table) undefined. Opera supports applying `max-width` to `table` elements."
             },
             "opera_android": "mirror",
             "safari": {
@@ -35,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -72,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -84,6 +89,9 @@
         "fit-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-width-fit-content",
+            "tags": [
+              "web-features:fit-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -104,7 +112,7 @@
                   "prefix": "-moz-",
                   "version_added": "3",
                   "partial_implementation": true,
-                  "notes": "Firefox implements the definitions given in CSS3 Basic Box. This defines <code>available</code> and not <code>fit-available</code>. Also, the definition of <code>fit-content</code> is simpler than in CSS3 Sizing."
+                  "notes": "Firefox implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing."
                 }
               ],
               "firefox_android": "mirror",
@@ -133,7 +141,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,7 +153,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -172,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -184,6 +197,9 @@
         "max-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#valdef-width-max-content",
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -239,7 +255,8 @@
                   "prefix": "-webkit-",
                   "version_added": "≤37"
                 }
-              ]
+              ],
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -251,6 +268,9 @@
         "min-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content",
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -298,7 +318,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -310,6 +331,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#valdef-max-width-none",
+            "tags": [
+              "web-features:min-max-width-height"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -333,7 +357,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -345,6 +370,9 @@
         "stretch": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-width-stretch",
+            "tags": [
+              "web-features:stretch"
+            ],
             "support": {
               "chrome": {
                 "alternative_name": "-webkit-fill-available",
@@ -367,7 +395,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/min-block-size.json b/css/properties/min-block-size.json
index 644b3c5f29ce7e..b5dc2cbd599ed4 100644
--- a/css/properties/min-block-size.json
+++ b/css/properties/min-block-size.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-logical/#propdef-min-block-size",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -29,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +43,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -66,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -77,6 +82,9 @@
         },
         "fit-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -101,7 +109,8 @@
                 "alternative_name": "-webkit-fill-available",
                 "version_added": "7.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,7 +121,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -140,7 +152,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -151,6 +164,9 @@
         },
         "max-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -178,7 +194,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -189,6 +206,9 @@
         },
         "min-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -216,7 +236,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/min-height.json b/css/properties/min-height.json
index fc93853b68ab04..34c961c83d20ed 100644
--- a/css/properties/min-height.json
+++ b/css/properties/min-height.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-sizing/#width-height-keywords",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:min-max-width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -18,17 +21,17 @@
             },
             "firefox": {
               "version_added": "3",
-              "notes": "CSS 2.1 leaves the behavior of <code>min-height</code> with <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>table</code></a> undefined. Firefox supports applying <code>min-height</code> to <code>table</code> elements."
+              "notes": "CSS 2.1 leaves the behavior of `min-height` with [`table`](https://developer.mozilla.org/docs/Web/HTML/Element/table) undefined. Firefox supports applying `min-height` to `table` elements."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "7",
-              "notes": "In Internet Explorer 10 and 11, a <code>min-height</code> declaration on a column-direction flex container doesn't apply to the container's flex items. See <a href='https://github.com/philipwalton/flexbugs#3-min-height-on-a-column-flex-container-wont-apply-to-its-flex-items'>Flexbug #3</a> for more info."
+              "notes": "In Internet Explorer 10 and 11, a `min-height` declaration on a column-direction flex container doesn't apply to the container's flex items. See [Flexbug #3](https://github.com/philipwalton/flexbugs#3-min-height-on-a-column-flex-container-wont-apply-to-its-flex-items) for more info."
             },
             "oculus": "mirror",
             "opera": {
               "version_added": "4",
-              "notes": "CSS 2.1 leaves the behavior of <code>min-height</code> with <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>table</code></a> undefined. Opera supports applying <code>min-height</code> to <code>table</code> elements."
+              "notes": "CSS 2.1 leaves the behavior of `min-height` with [`table`](https://developer.mozilla.org/docs/Web/HTML/Element/table) undefined. Opera supports applying `min-height` to `table` elements."
             },
             "opera_android": "mirror",
             "safari": {
@@ -36,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,7 +50,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -73,7 +77,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -84,17 +89,27 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:min-max-width-height"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
-              "firefox": {
-                "version_added": "16",
-                "version_removed": "22",
-                "notes": "Firefox 18 and later used <code>auto</code> as the initial value for <code>min-height</code>."
+              "edge": {
+                "version_added": "12"
               },
+              "firefox": [
+                {
+                  "version_added": "34"
+                },
+                {
+                  "version_added": "16",
+                  "version_removed": "22",
+                  "notes": "Firefox 18 and later used `auto` as the initial value for `min-height`."
+                }
+              ],
               "firefox_android": "mirror",
               "ie": {
                 "version_added": false
@@ -109,7 +124,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -120,6 +136,9 @@
         },
         "fit-content": {
           "__compat": {
+            "tags": [
+              "web-features:fit-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -139,7 +158,7 @@
                 {
                   "prefix": "-moz-",
                   "version_added": "3",
-                  "notes": "Firefox implements the definitions given in CSS3 Basic Box. This defines <code>available</code> and not <code>fit-available</code>. Also, the definition of <code>fit-content</code> is simpler than in CSS3 Sizing."
+                  "notes": "Firefox implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing."
                 }
               ],
               "firefox_android": "mirror",
@@ -168,7 +187,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -179,7 +199,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -207,7 +230,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -218,6 +242,9 @@
         },
         "max-content": {
           "__compat": {
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -255,7 +282,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -266,6 +294,9 @@
         },
         "min-content": {
           "__compat": {
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -303,7 +334,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -314,6 +346,9 @@
         },
         "stretch": {
           "__compat": {
+            "tags": [
+              "web-features:stretch"
+            ],
             "support": {
               "chrome": {
                 "alternative_name": "-webkit-fill-available",
@@ -337,7 +372,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/min-inline-size.json b/css/properties/min-inline-size.json
index da2e55f2ea3d3a..5b1de010a89957 100644
--- a/css/properties/min-inline-size.json
+++ b/css/properties/min-inline-size.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-logical/#propdef-min-inline-size",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -29,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +43,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -66,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -77,6 +82,9 @@
         },
         "fit-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -107,7 +115,8 @@
                 "alternative_name": "-webkit-fill-available",
                 "version_added": "7.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -118,7 +127,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -146,7 +158,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -157,6 +170,9 @@
         },
         "max-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -184,7 +200,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -195,6 +212,9 @@
         },
         "min-content": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -222,7 +242,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/min-width.json b/css/properties/min-width.json
index 06d4706aaae8f0..56e54417be06a0 100644
--- a/css/properties/min-width.json
+++ b/css/properties/min-width.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-sizing/#min-size-properties",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:min-max-width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -18,7 +21,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "CSS 2.1 leaves the behavior of <code>min-width</code> with <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>table</code></a> undefined. Firefox supports applying <code>min-width</code> to <code>table</code> elements."
+              "notes": "CSS 2.1 leaves the behavior of `min-width` with [`table`](https://developer.mozilla.org/docs/Web/HTML/Element/table) undefined. Firefox supports applying `min-width` to `table` elements."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "4",
-              "notes": "CSS 2.1 leaves the behavior of <code>min-width</code> with <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>table</code></a> undefined. Opera supports applying <code>min-width</code> to <code>table</code> elements."
+              "notes": "CSS 2.1 leaves the behavior of `min-width` with [`table`](https://developer.mozilla.org/docs/Web/HTML/Element/table) undefined. Opera supports applying `min-width` to `table` elements."
             },
             "opera_android": {
               "version_added": "10.1"
@@ -37,7 +40,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,7 +51,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -74,7 +78,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -85,15 +90,18 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:min-max-width-height"
+            ],
             "support": {
               "chrome": {
                 "version_added": "21",
-                "notes": "Chrome uses <code>auto</code> as the initial value for <code>min-width</code>."
+                "notes": "Chrome uses `auto` as the initial value for `min-width`."
               },
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "Edge uses <code>auto</code> as the initial value for <code>min-width</code>."
+                "notes": "Edge uses `auto` as the initial value for `min-width`."
               },
               "firefox": [
                 {
@@ -102,7 +110,7 @@
                 {
                   "version_added": "16",
                   "version_removed": "22",
-                  "notes": "Firefox 18 and later (until the value was removed), used <code>auto</code> as the initial value for <code>min-width</code>."
+                  "notes": "Firefox 18 and later (until the value was removed), used `auto` as the initial value for `min-width`."
                 }
               ],
               "firefox_android": "mirror",
@@ -112,7 +120,7 @@
               "oculus": "mirror",
               "opera": {
                 "version_added": "12.1",
-                "notes": "Opera uses <code>auto</code> as the initial value for <code>min-width</code>."
+                "notes": "Opera uses `auto` as the initial value for `min-width`."
               },
               "opera_android": "mirror",
               "safari": {
@@ -120,7 +128,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -131,6 +140,9 @@
         },
         "fit-content": {
           "__compat": {
+            "tags": [
+              "web-features:fit-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -150,7 +162,7 @@
                 {
                   "prefix": "-moz-",
                   "version_added": "3",
-                  "notes": "Firefox implements the definitions given in CSS3 Basic Box. This defines <code>available</code> and not <code>fit-available</code>. Also, the definition of <code>fit-content</code> is simpler than in CSS3 Sizing."
+                  "notes": "Firefox implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing."
                 }
               ],
               "firefox_android": "mirror",
@@ -174,7 +186,8 @@
                 "alternative_name": "-webkit-fill-available",
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -185,7 +198,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -213,7 +229,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -224,6 +241,9 @@
         },
         "max-content": {
           "__compat": {
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -263,7 +283,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -274,6 +295,9 @@
         },
         "min-content": {
           "__compat": {
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -344,7 +368,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -355,6 +380,9 @@
         },
         "stretch": {
           "__compat": {
+            "tags": [
+              "web-features:stretch"
+            ],
             "support": {
               "chrome": {
                 "alternative_name": "-webkit-fill-available",
@@ -377,7 +405,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/mix-blend-mode.json b/css/properties/mix-blend-mode.json
index 1dcdc280e57417..08f5aaad6bb689 100644
--- a/css/properties/mix-blend-mode.json
+++ b/css/properties/mix-blend-mode.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/mix-blend-mode",
           "spec_url": "https://drafts.fxtf.org/compositing/#mix-blend-mode",
+          "tags": [
+            "web-features:mix-blend-mode"
+          ],
           "support": {
             "chrome": {
               "version_added": "41"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "plus-darker": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/compositing/#plus-darker",
+            "tags": [
+              "web-features:mix-blend-mode"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -70,6 +78,9 @@
         "plus-lighter": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/compositing/#plus-lighter",
+            "tags": [
+              "web-features:mix-blend-mode"
+            ],
             "support": {
               "chrome": {
                 "version_added": "100"
@@ -95,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,6 +119,9 @@
         "svg_elements": {
           "__compat": {
             "description": "On SVG elements",
+            "tags": [
+              "web-features:mix-blend-mode"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -130,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/object-fit.json b/css/properties/object-fit.json
index 22e53d2b64db34..0e63709fce0908 100644
--- a/css/properties/object-fit.json
+++ b/css/properties/object-fit.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/object-fit",
           "spec_url": "https://drafts.csswg.org/css-images/#the-object-fit",
+          "tags": [
+            "web-features:object-fit"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -18,7 +21,7 @@
                 "version_added": "16",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Only supported for <code>&lt;img&gt;</code> elements."
+                "notes": "Only supported for `&lt;img&gt;` elements."
               }
             ],
             "firefox": {
@@ -54,7 +57,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -65,6 +69,9 @@
         "contain": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-object-fit-contain",
+            "tags": [
+              "web-features:object-fit"
+            ],
             "support": {
               "chrome": {
                 "version_added": "32"
@@ -86,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -98,6 +106,9 @@
         "cover": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-object-fit-cover",
+            "tags": [
+              "web-features:object-fit"
+            ],
             "support": {
               "chrome": {
                 "version_added": "32"
@@ -119,7 +130,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -131,6 +143,9 @@
         "fill": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-object-fit-fill",
+            "tags": [
+              "web-features:object-fit"
+            ],
             "support": {
               "chrome": {
                 "version_added": "32"
@@ -152,7 +167,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -164,6 +180,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-object-fit-none",
+            "tags": [
+              "web-features:object-fit"
+            ],
             "support": {
               "chrome": {
                 "version_added": "32"
@@ -185,7 +204,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -197,6 +217,9 @@
         "scale-down": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images/#valdef-object-fit-scale-down",
+            "tags": [
+              "web-features:object-fit"
+            ],
             "support": {
               "chrome": {
                 "version_added": "32"
@@ -218,7 +241,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/object-position.json b/css/properties/object-position.json
index 75209d1d9fab5e..fa38cc718485a3 100644
--- a/css/properties/object-position.json
+++ b/css/properties/object-position.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/object-position",
           "spec_url": "https://drafts.csswg.org/css-images/#the-object-position",
+          "tags": [
+            "web-features:object-position"
+          ],
           "support": {
             "chrome": {
               "version_added": "32"
@@ -18,7 +21,7 @@
                 "version_added": "16",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Only supported for <code>&lt;img&gt;</code> elements."
+                "notes": "Only supported for `&lt;img&gt;` elements."
               }
             ],
             "firefox": {
@@ -54,7 +57,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/object-view-box.json b/css/properties/object-view-box.json
index a05764b3eca9f8..055554267e2d98 100644
--- a/css/properties/object-view-box.json
+++ b/css/properties/object-view-box.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -39,6 +40,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-images-5/#valdef-object-view-box-none",
+            "tags": [
+              "web-features:object-view-box"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -60,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/offset-anchor.json b/css/properties/offset-anchor.json
index a063d63edd7ed4..98081061061c16 100644
--- a/css/properties/offset-anchor.json
+++ b/css/properties/offset-anchor.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/motion/#valdef-offset-anchor-auto",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/offset-distance.json b/css/properties/offset-distance.json
index cf789b90086434..70906cf2d582b8 100644
--- a/css/properties/offset-distance.json
+++ b/css/properties/offset-distance.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/offset-path.json b/css/properties/offset-path.json
index c1510f3da4b8f1..c927d3a06fc413 100644
--- a/css/properties/offset-path.json
+++ b/css/properties/offset-path.json
@@ -53,14 +53,15 @@
             "samsunginternet_android": [
               {
                 "version_added": "6.0",
-                "notes": "<code>path()</code> is the only value type supported."
+                "notes": "`path()` is the only value type supported."
               },
               {
                 "alternative_name": "motion-path",
                 "version_added": "5.0"
               }
             ],
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,7 +71,10 @@
         },
         "basic_shape": {
           "__compat": {
-            "description": "<code>&lt;basic-shape&gt;</code>",
+            "description": "`&lt;basic-shape&gt;`",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -92,7 +96,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,7 +108,10 @@
         },
         "coord_box": {
           "__compat": {
-            "description": "<code>&lt;coord-box&gt;</code>",
+            "description": "`&lt;coord-box&gt;`",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -125,7 +133,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,7 +145,7 @@
         },
         "path": {
           "__compat": {
-            "description": "Support for <a href='https://developer.mozilla.org/docs/Web/CSS/path'><code>path()</code></a> function as a value",
+            "description": "Support for [`path()`](https://developer.mozilla.org/docs/Web/CSS/path) function as a value",
             "tags": [
               "web-features:motion-path"
             ],
@@ -161,7 +170,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -172,7 +182,10 @@
         },
         "ray": {
           "__compat": {
-            "description": "Support for <a href='https://developer.mozilla.org/docs/Web/CSS/ray'><code>ray()</code></a> function as a value",
+            "description": "Support for [`ray()`](https://developer.mozilla.org/docs/Web/CSS/ray) function as a value",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -194,7 +207,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -205,7 +219,10 @@
         },
         "url": {
           "__compat": {
-            "description": "<code>&lt;url&gt;</code>",
+            "description": "`&lt;url&gt;`",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -227,7 +244,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/offset-position.json b/css/properties/offset-position.json
index 3b4354c75f7d85..3e77b0ebffad43 100644
--- a/css/properties/offset-position.json
+++ b/css/properties/offset-position.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/offset-position",
           "spec_url": "https://drafts.fxtf.org/motion/#offset-position-property",
+          "tags": [
+            "web-features:motion-path"
+          ],
           "support": {
             "chrome": {
               "version_added": "116"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/motion/#valdef-offset-position-auto",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/motion/#valdef-offset-position-normal",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/offset-rotate.json b/css/properties/offset-rotate.json
index cbfbf589e312b4..b930dd8e83eff3 100644
--- a/css/properties/offset-rotate.json
+++ b/css/properties/offset-rotate.json
@@ -39,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -50,6 +51,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/motion/#valdef-offset-rotate-auto",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -71,7 +75,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -83,6 +88,9 @@
         "reverse": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/motion/#valdef-offset-rotate-reverse",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -104,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/offset.json b/css/properties/offset.json
index 3485f142bf0930..116916ed443b35 100644
--- a/css/properties/offset.json
+++ b/css/properties/offset.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/opacity.json b/css/properties/opacity.json
index 7e6e36ac5213ed..993b02ed2f70d6 100644
--- a/css/properties/opacity.json
+++ b/css/properties/opacity.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/opacity",
           "spec_url": "https://drafts.csswg.org/css-color/#transparency",
+          "tags": [
+            "web-features:opacity"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -46,7 +49,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -57,6 +61,9 @@
         "percentages": {
           "__compat": {
             "description": "Support for percentage opacity values",
+            "tags": [
+              "web-features:opacity"
+            ],
             "support": {
               "chrome": {
                 "version_added": "78"
@@ -78,7 +85,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/order.json b/css/properties/order.json
index 405e167bb80c38..65f495d7c44e4f 100644
--- a/css/properties/order.json
+++ b/css/properties/order.json
@@ -66,7 +66,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/orphans.json b/css/properties/orphans.json
index 22fb578c594ae7..4c908c894f4136 100644
--- a/css/properties/orphans.json
+++ b/css/properties/orphans.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/orphans",
           "spec_url": "https://drafts.csswg.org/css-break/#widows-orphans",
+          "tags": [
+            "web-features:widows-orphans"
+          ],
           "support": {
             "chrome": {
               "version_added": "25"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/outline-color.json b/css/properties/outline-color.json
index 560afe2a430a9e..dfb312f2700d52 100644
--- a/css/properties/outline-color.json
+++ b/css/properties/outline-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/outline-color",
           "spec_url": "https://drafts.csswg.org/css-ui/#outline-color",
+          "tags": [
+            "web-features:outlines"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -39,7 +42,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/outline-offset.json b/css/properties/outline-offset.json
index cc18bdd1ca026e..ca7c7adbfb8ba6 100644
--- a/css/properties/outline-offset.json
+++ b/css/properties/outline-offset.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/outline-offset",
           "spec_url": "https://drafts.csswg.org/css-ui/#outline-offset",
+          "tags": [
+            "web-features:outlines"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1.5",
-              "notes": "Before Firefox 88, an outline does not follow the shape of <code>border-radius</code>."
+              "notes": "Before Firefox 88, an outline does not follow the shape of `border-radius`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -33,7 +36,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/outline-style.json b/css/properties/outline-style.json
index 726934e75ad7e2..7c1a7daad420ad 100644
--- a/css/properties/outline-style.json
+++ b/css/properties/outline-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/outline-style",
           "spec_url": "https://drafts.csswg.org/css-ui/#outline-style",
+          "tags": [
+            "web-features:outlines"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -16,7 +19,7 @@
             "firefox": [
               {
                 "version_added": "1.5",
-                "notes": "Before Firefox 88, an outline does not follow the shape of <code>border-radius</code>."
+                "notes": "Before Firefox 88, an outline does not follow the shape of `border-radius`."
               },
               {
                 "prefix": "-moz-",
@@ -42,7 +45,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -53,6 +57,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ui/#outline-style",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -76,7 +83,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -88,6 +96,9 @@
         "dashed": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds-3/#valdef-line-style-dashed",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -111,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -123,6 +135,9 @@
         "dotted": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds-3/#valdef-line-style-dotted",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -146,7 +161,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -158,6 +174,9 @@
         "double": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds-3/#valdef-line-style-double",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -181,7 +200,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -193,6 +213,9 @@
         "groove": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds-3/#valdef-line-style-groove",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -216,7 +239,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -228,6 +252,9 @@
         "inset": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds-3/#valdef-line-style-inset",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -251,7 +278,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -263,6 +291,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds-3/#valdef-line-style-none",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -286,7 +317,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -298,6 +330,9 @@
         "outset": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds-3/#valdef-line-style-outset",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -321,7 +356,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -333,6 +369,9 @@
         "ridge": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds-3/#valdef-line-style-ridge",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -356,7 +395,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -368,6 +408,9 @@
         "solid": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-backgrounds-3/#valdef-line-style-solid",
+            "tags": [
+              "web-features:outlines"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -391,7 +434,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/outline-width.json b/css/properties/outline-width.json
index 48cefcf34c06cf..5736b38dd61422 100644
--- a/css/properties/outline-width.json
+++ b/css/properties/outline-width.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/outline-width",
           "spec_url": "https://drafts.csswg.org/css-ui/#outline-width",
+          "tags": [
+            "web-features:outlines"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -16,7 +19,7 @@
             "firefox": [
               {
                 "version_added": "1.5",
-                "notes": "Before Firefox 88, an outline does not follow the shape of <code>border-radius</code>."
+                "notes": "Before Firefox 88, an outline does not follow the shape of `border-radius`."
               },
               {
                 "prefix": "-moz-",
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/outline.json b/css/properties/outline.json
index c07e311481bb2a..99a25685142fc4 100644
--- a/css/properties/outline.json
+++ b/css/properties/outline.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/outline",
           "spec_url": "https://drafts.csswg.org/css-ui/#outline",
+          "tags": [
+            "web-features:outline"
+          ],
           "support": {
             "chrome": [
               {
@@ -14,7 +17,7 @@
                 "version_added": "1",
                 "version_removed": "94",
                 "partial_implementation": true,
-                "notes": "Before Chrome 94, <code>outline</code> does not follow the shape of <code>border-radius</code>."
+                "notes": "Before Chrome 94, `outline` does not follow the shape of `border-radius`."
               }
             ],
             "chrome_android": "mirror",
@@ -26,7 +29,7 @@
                 "version_added": "12",
                 "version_removed": "94",
                 "partial_implementation": true,
-                "notes": "Before Edge 94, <code>outline</code> does not follow the shape of <code>border-radius</code>."
+                "notes": "Before Edge 94, `outline` does not follow the shape of `border-radius`."
               }
             ],
             "firefox": [
@@ -37,7 +40,7 @@
                 "version_added": "1.5",
                 "version_removed": "88",
                 "partial_implementation": true,
-                "notes": "Before Firefox 88, <code>outline</code> does not follow the shape of <code>border-radius</code>."
+                "notes": "Before Firefox 88, `outline` does not follow the shape of `border-radius`."
               },
               {
                 "prefix": "-moz-",
@@ -58,7 +61,7 @@
                 "version_added": "7",
                 "version_removed": "80",
                 "partial_implementation": true,
-                "notes": "Before Opera 80, <code>outline</code> does not follow the shape of <code>border-radius</code>."
+                "notes": "Before Opera 80, `outline` does not follow the shape of `border-radius`."
               }
             ],
             "opera_android": {
@@ -72,7 +75,7 @@
                 "version_added": "1.2",
                 "version_removed": "16.4",
                 "partial_implementation": true,
-                "notes": "Before Safari 16.4, <code>outline</code> does not follow the shape of <code>border-radius</code>. See <a href='https://webkit.org/b/20807'>bug 20807</a>."
+                "notes": "Before Safari 16.4, `outline` does not follow the shape of `border-radius`. See [bug 20807](https://webkit.org/b/20807)."
               }
             ],
             "safari_ios": "mirror",
@@ -87,9 +90,10 @@
                 "version_added": "1",
                 "version_removed": "94",
                 "partial_implementation": true,
-                "notes": "Before Chrome 94, <code>outline</code> does not follow the shape of <code>border-radius</code>."
+                "notes": "Before Chrome 94, `outline` does not follow the shape of `border-radius`."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/overflow-anchor.json b/css/properties/overflow-anchor.json
index 30073a97c6c890..927e0053725afc 100644
--- a/css/properties/overflow-anchor.json
+++ b/css/properties/overflow-anchor.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overflow-anchor",
           "spec_url": "https://drafts.csswg.org/css-scroll-anchoring/#exclusion-api",
+          "tags": [
+            "web-features:overflow-anchor"
+          ],
           "support": {
             "chrome": {
               "version_added": "56"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-anchoring/#valdef-overflow-anchor-auto",
+            "tags": [
+              "web-features:overflow-anchor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-anchoring/#valdef-overflow-anchor-none",
+            "tags": [
+              "web-features:overflow-anchor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/overflow-block.json b/css/properties/overflow-block.json
index 7eee57f1b4d2a0..6e6f79c920d97b 100644
--- a/css/properties/overflow-block.json
+++ b/css/properties/overflow-block.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overflow-block",
           "spec_url": "https://drafts.csswg.org/css-overflow/#overflow-control",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         },
         "overlay": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -59,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/overflow-clip-margin.json b/css/properties/overflow-clip-margin.json
index a0788a1cd79a32..bacbcc9ad5cb99 100644
--- a/css/properties/overflow-clip-margin.json
+++ b/css/properties/overflow-clip-margin.json
@@ -5,18 +5,21 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overflow-clip-margin",
           "spec_url": "https://drafts.csswg.org/css-overflow/#overflow-clip-margin",
+          "tags": [
+            "web-features:overflow-clip-margin"
+          ],
           "support": {
             "chrome": {
               "version_added": "90",
               "partial_implementation": true,
-              "notes": "Only works when both axes are using <code>overflow: clip</code>. See <a href='https://crbug.com/1354474'>bug 1354474</a>."
+              "notes": "Only works when both axes are using `overflow: clip`. See [bug 40235584](https://crbug.com/40235584)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
               "version_added": "102",
               "partial_implementation": true,
-              "notes": "Only supports using a length, not a visual box. See <a href='https://bugzil.la/1661582'>bug 1661582</a>."
+              "notes": "Only supports using a length, not a visual box. See [bug 1661582](https://bugzil.la/1661582)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +45,9 @@
         "border-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#ref-for-typedef-visual-box③",
+            "tags": [
+              "web-features:overflow-clip-margin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -62,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -74,6 +82,9 @@
         "content-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#ref-for-typedef-visual-box③",
+            "tags": [
+              "web-features:overflow-clip-margin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -95,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -107,6 +119,9 @@
         "padding-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#ref-for-typedef-visual-box③",
+            "tags": [
+              "web-features:overflow-clip-margin"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -128,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/overflow-inline.json b/css/properties/overflow-inline.json
index 9fbd14de9df441..d22a13d99bc2e7 100644
--- a/css/properties/overflow-inline.json
+++ b/css/properties/overflow-inline.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overflow-inline",
           "spec_url": "https://drafts.csswg.org/css-overflow/#overflow-control",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         },
         "overlay": {
           "__compat": {
+            "tags": [
+              "web-features:logical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -59,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/overflow-wrap.json b/css/properties/overflow-wrap.json
index a3d3050c1461d0..e203d8012da00e 100644
--- a/css/properties/overflow-wrap.json
+++ b/css/properties/overflow-wrap.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overflow-wrap",
           "spec_url": "https://drafts.csswg.org/css-text/#overflow-wrap-property",
+          "tags": [
+            "web-features:overflow-wrap"
+          ],
           "support": {
             "chrome": [
               {
@@ -77,7 +80,8 @@
                 "alternative_name": "word-wrap",
                 "version_added": "1"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -88,6 +92,9 @@
         "anywhere": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-overflow-wrap-anywhere",
+            "tags": [
+              "web-features:overflow-wrap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "80"
@@ -109,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -121,6 +129,9 @@
         "break-word": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-overflow-wrap-break-word",
+            "tags": [
+              "web-features:overflow-wrap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -148,7 +159,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -160,6 +172,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-overflow-wrap-normal",
+            "tags": [
+              "web-features:overflow-wrap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -183,7 +198,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/overflow-x.json b/css/properties/overflow-x.json
index 5f621b8fbc680d..de8b4289dc71c9 100644
--- a/css/properties/overflow-x.json
+++ b/css/properties/overflow-x.json
@@ -41,7 +41,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -52,6 +53,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-auto",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": [
                 {
@@ -101,7 +105,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,7 +149,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,6 +162,9 @@
         "hidden": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-hidden",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -179,7 +188,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -191,6 +201,9 @@
         "scroll": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-scroll",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -214,7 +227,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -226,6 +240,9 @@
         "visible": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-visible",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -249,7 +266,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/overflow-y.json b/css/properties/overflow-y.json
index 7dd04075d2ed53..6aa306c1d2ff5a 100644
--- a/css/properties/overflow-y.json
+++ b/css/properties/overflow-y.json
@@ -41,7 +41,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -52,6 +53,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-auto",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": [
                 {
@@ -101,7 +105,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,7 +149,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,6 +162,9 @@
         "hidden": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-hidden",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -179,7 +188,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -191,6 +201,9 @@
         "scroll": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-scroll",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -214,7 +227,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -226,6 +240,9 @@
         "visible": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-visible",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -249,7 +266,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/overflow.json b/css/properties/overflow.json
index 5f99cd9f1a3f4c..7aa59060eec058 100644
--- a/css/properties/overflow.json
+++ b/css/properties/overflow.json
@@ -18,14 +18,14 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "After Firefox 3.6, the <code>overflow</code> property is correctly applied to table group elements (<code>&lt;thead&gt;</code>, <code>&lt;tbody&gt;</code>, <code>&lt;tfoot&gt;</code>)."
+              "notes": "After Firefox 3.6, the `overflow` property is correctly applied to table group elements (`&lt;thead&gt;`, `&lt;tbody&gt;`, `&lt;tfoot&gt;`)."
             },
             "firefox_android": {
               "version_added": "4"
             },
             "ie": {
               "version_added": "4",
-              "notes": "From version 4 to 6, Internet Explorer enlarges an element with <code>overflow: visible</code> (default value) to fit the content inside it. <code>height</code> and <code>width</code> behave like <code>min-height</code> and <code>min-width</code>, respectively."
+              "notes": "From version 4 to 6, Internet Explorer enlarges an element with `overflow: visible` (default value) to fit the content inside it. `height` and `width` behave like `min-height` and `min-width`, respectively."
             },
             "oculus": "mirror",
             "opera": {
@@ -37,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,6 +49,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-auto",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": [
                 {
@@ -97,7 +101,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -152,6 +158,9 @@
         "hidden": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-hidden",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -175,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -186,7 +196,7 @@
         },
         "multiple_keywords": {
           "__compat": {
-            "description": "Multiple keyword syntax for <code>overflow-x</code> and <code>overflow-y</code>",
+            "description": "Multiple keyword syntax for `overflow-x` and `overflow-y`",
             "tags": [
               "web-features:overflow-shorthand"
             ],
@@ -211,7 +221,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -223,6 +234,9 @@
         "scroll": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-scroll",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -246,7 +260,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -258,6 +273,9 @@
         "visible": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-overflow-visible",
+            "tags": [
+              "web-features:overflow-shorthand"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -281,7 +299,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/overlay.json b/css/properties/overlay.json
index 2496383f10d068..ea12ddfa663bd5 100644
--- a/css/properties/overlay.json
+++ b/css/properties/overlay.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -40,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-4/#valdef-overlay-auto",
+            "tags": [
+              "web-features:overlay"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -73,6 +78,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position-4/#valdef-overlay-none",
+            "tags": [
+              "web-features:overlay"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117"
@@ -94,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/overscroll-behavior-block.json b/css/properties/overscroll-behavior-block.json
index 6c411668431354..bdad5294b1ca1f 100644
--- a/css/properties/overscroll-behavior-block.json
+++ b/css/properties/overscroll-behavior-block.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior-block",
           "spec_url": "https://drafts.csswg.org/css-overscroll/#overscroll-behavior-longhands-logical",
+          "tags": [
+            "web-features:overscroll-behavior"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-auto",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "contain": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-contain",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +115,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-none",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/overscroll-behavior-inline.json b/css/properties/overscroll-behavior-inline.json
index a16cd31d210676..17fe5d63d9bdf0 100644
--- a/css/properties/overscroll-behavior-inline.json
+++ b/css/properties/overscroll-behavior-inline.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior-inline",
           "spec_url": "https://drafts.csswg.org/css-overscroll/#overscroll-behavior-longhands-logical",
+          "tags": [
+            "web-features:overscroll-behavior"
+          ],
           "support": {
             "chrome": {
               "version_added": "77"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-auto",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "contain": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-contain",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +115,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-none",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/overscroll-behavior-x.json b/css/properties/overscroll-behavior-x.json
index 14957dd9d994db..48133429c8d256 100644
--- a/css/properties/overscroll-behavior-x.json
+++ b/css/properties/overscroll-behavior-x.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior-x",
           "spec_url": "https://drafts.csswg.org/css-overscroll/#overscroll-behavior-longhands-physical",
+          "tags": [
+            "web-features:overscroll-behavior"
+          ],
           "support": {
             "chrome": {
               "version_added": "63"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-auto",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -62,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,6 +82,9 @@
         "contain": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-contain",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -97,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -109,15 +121,25 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-none",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "18",
-                "notes": "Before Edge 79, the <code>none</code> value incorrectly behaved as <code>contain</code> (allowing for the elastic bounce effect)."
-              },
+              "edge": [
+                {
+                  "version_added": "79"
+                },
+                {
+                  "version_added": "18",
+                  "version_removed": "79",
+                  "partial_implementation": true,
+                  "notes": "The `none` value incorrectly behaves as `contain` (allowing for the elastic bounce effect)."
+                }
+              ],
               "firefox": {
                 "version_added": "59"
               },
@@ -133,7 +155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/overscroll-behavior-y.json b/css/properties/overscroll-behavior-y.json
index 1099fcbdc46f7c..1bde88a2ac9d35 100644
--- a/css/properties/overscroll-behavior-y.json
+++ b/css/properties/overscroll-behavior-y.json
@@ -5,15 +5,16 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior-y",
           "spec_url": "https://drafts.csswg.org/css-overscroll/#overscroll-behavior-longhands-physical",
+          "tags": [
+            "web-features:overscroll-behavior"
+          ],
           "support": {
             "chrome": {
               "version_added": "63"
             },
             "chrome_android": "mirror",
             "edge": {
-              "version_added": "18",
-              "partial_implementation": true,
-              "notes": "Currently the <code>none</code> value incorrectly behaves as <code>contain</code> (allowing for the elastic bounce effect)."
+              "version_added": "18"
             },
             "firefox": {
               "version_added": "59"
@@ -30,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +43,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-auto",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -62,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,6 +80,9 @@
         "contain": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-contain",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤83"
@@ -95,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,12 +117,25 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-none",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤83"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": [
+                {
+                  "version_added": "79"
+                },
+                {
+                  "version_added": "18",
+                  "version_removed": "79",
+                  "partial_implementation": true,
+                  "notes": "The `none` value incorrectly behaves as `contain` (allowing for the elastic bounce effect)."
+                }
+              ],
               "firefox": {
                 "version_added": "59"
               },
@@ -128,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/overscroll-behavior.json b/css/properties/overscroll-behavior.json
index fca8dfc89d9db7..5b06835ac285e2 100644
--- a/css/properties/overscroll-behavior.json
+++ b/css/properties/overscroll-behavior.json
@@ -5,15 +5,16 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior",
           "spec_url": "https://drafts.csswg.org/css-overscroll/#overscroll-behavior-properties",
+          "tags": [
+            "web-features:overscroll-behavior"
+          ],
           "support": {
             "chrome": {
               "version_added": "63"
             },
             "chrome_android": "mirror",
             "edge": {
-              "version_added": "18",
-              "partial_implementation": true,
-              "notes": "Currently the <code>none</code> value incorrectly behaves as <code>contain</code> (allowing for the elastic bounce effect)."
+              "version_added": "18"
             },
             "firefox": {
               "version_added": "59"
@@ -30,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +43,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-auto",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -62,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,6 +80,9 @@
         "contain": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-contain",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -95,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,12 +117,25 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overscroll/#valdef-overscroll-behavior-none",
+            "tags": [
+              "web-features:overscroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": [
+                {
+                  "version_added": "79"
+                },
+                {
+                  "version_added": "18",
+                  "version_removed": "79",
+                  "partial_implementation": true,
+                  "notes": "The `none` value incorrectly behaves as `contain` (allowing for the elastic bounce effect)."
+                }
+              ],
               "firefox": {
                 "version_added": "59"
               },
@@ -128,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/padding-block-end.json b/css/properties/padding-block-end.json
index 2cae17075788c8..9babe8be0a8ed7 100644
--- a/css/properties/padding-block-end.json
+++ b/css/properties/padding-block-end.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-block-end",
           "spec_url": "https://drafts.csswg.org/css-logical/#padding-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding-block-start.json b/css/properties/padding-block-start.json
index 2c187387145ce0..072a8fea40cb0b 100644
--- a/css/properties/padding-block-start.json
+++ b/css/properties/padding-block-start.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-block-start",
           "spec_url": "https://drafts.csswg.org/css-logical/#padding-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding-block.json b/css/properties/padding-block.json
index 9d8c59c5871717..a6adbf379c7958 100644
--- a/css/properties/padding-block.json
+++ b/css/properties/padding-block.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-block",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-padding-block",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding-bottom.json b/css/properties/padding-bottom.json
index 014cdf6d14cae5..291b71ba2264c9 100644
--- a/css/properties/padding-bottom.json
+++ b/css/properties/padding-bottom.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-bottom",
           "spec_url": "https://drafts.csswg.org/css-box/#padding-physical",
+          "tags": [
+            "web-features:padding"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding-inline-end.json b/css/properties/padding-inline-end.json
index 02bb8dbb1e5f11..b0463b6dd1dae4 100644
--- a/css/properties/padding-inline-end.json
+++ b/css/properties/padding-inline-end.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-inline-end",
           "spec_url": "https://drafts.csswg.org/css-logical/#padding-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": [
               {
@@ -60,7 +63,8 @@
                 "alternative_name": "-webkit-padding-end",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding-inline-start.json b/css/properties/padding-inline-start.json
index f467c1fb7f1596..50c11d53cdb5d6 100644
--- a/css/properties/padding-inline-start.json
+++ b/css/properties/padding-inline-start.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-inline-start",
           "spec_url": "https://drafts.csswg.org/css-logical/#padding-properties",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": [
               {
@@ -60,7 +63,8 @@
                 "alternative_name": "-webkit-padding-start",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding-inline.json b/css/properties/padding-inline.json
index 81d59cb932b2c6..64dfba2905e97c 100644
--- a/css/properties/padding-inline.json
+++ b/css/properties/padding-inline.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-inline",
           "spec_url": "https://drafts.csswg.org/css-logical/#propdef-padding-inline",
+          "tags": [
+            "web-features:logical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding-left.json b/css/properties/padding-left.json
index e535792a11c105..83131bcd1429b7 100644
--- a/css/properties/padding-left.json
+++ b/css/properties/padding-left.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-left",
           "spec_url": "https://drafts.csswg.org/css-box/#padding-physical",
+          "tags": [
+            "web-features:padding"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding-right.json b/css/properties/padding-right.json
index 39d843b588d149..f5d33961b54e5a 100644
--- a/css/properties/padding-right.json
+++ b/css/properties/padding-right.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-right",
           "spec_url": "https://drafts.csswg.org/css-box/#padding-physical",
+          "tags": [
+            "web-features:padding"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding-top.json b/css/properties/padding-top.json
index bbc751b5086aad..26dfe227c84d7e 100644
--- a/css/properties/padding-top.json
+++ b/css/properties/padding-top.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding-top",
           "spec_url": "https://drafts.csswg.org/css-box/#padding-physical",
+          "tags": [
+            "web-features:padding"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/padding.json b/css/properties/padding.json
index e687d2d72dc0ae..555067253a9ce8 100644
--- a/css/properties/padding.json
+++ b/css/properties/padding.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/padding",
           "spec_url": "https://drafts.csswg.org/css-box/#padding-shorthand",
+          "tags": [
+            "web-features:padding"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/page-break-after.json b/css/properties/page-break-after.json
index a4090a65bf2357..270e6b164d36c4 100644
--- a/css/properties/page-break-after.json
+++ b/css/properties/page-break-after.json
@@ -36,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,6 +48,9 @@
         "always": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-page-break-always",
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,6 +87,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-page-break-auto",
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -105,7 +113,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -145,7 +154,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -157,6 +167,9 @@
         "left": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-page-break-left",
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -180,7 +193,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -192,6 +206,9 @@
         "right": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-page-break-right",
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -215,7 +232,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/page-break-before.json b/css/properties/page-break-before.json
index 134ae457606dd5..907a7bf4d189d3 100644
--- a/css/properties/page-break-before.json
+++ b/css/properties/page-break-before.json
@@ -36,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,6 +48,9 @@
         "always": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-page-break-always",
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,6 +87,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-page-break-auto",
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -105,7 +113,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -145,7 +154,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -157,6 +167,9 @@
         "left": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-page-break-left",
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -180,7 +193,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -192,6 +206,9 @@
         "right": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-page-break-right",
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -215,7 +232,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/page-break-inside.json b/css/properties/page-break-inside.json
index 01b029fc9295bf..ffe1ef10e8cbb6 100644
--- a/css/properties/page-break-inside.json
+++ b/css/properties/page-break-inside.json
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +45,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-page-break-auto",
+            "tags": [
+              "web-features:page-breaks"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -67,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -92,7 +97,7 @@
               },
               "firefox": {
                 "version_added": "19",
-                "notes": "Until Firefox 25, <code>page-break-inside: avoid</code> did not work with the height of a block."
+                "notes": "Until Firefox 25, `page-break-inside: avoid` did not work with the height of a block."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -106,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/page.json b/css/properties/page.json
index 4e5fc08729e81e..91d9c1e97f436e 100644
--- a/css/properties/page.json
+++ b/css/properties/page.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/page",
           "spec_url": "https://drafts.csswg.org/css-page/#using-named-pages",
+          "tags": [
+            "web-features:page-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "85"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/paint-order.json b/css/properties/paint-order.json
index 115641a59355bb..09738b0252f9cc 100644
--- a/css/properties/paint-order.json
+++ b/css/properties/paint-order.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/paint-order",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#PaintOrder",
+          "tags": [
+            "web-features:paint-order"
+          ],
           "support": {
             "chrome": [
               {
@@ -13,7 +16,7 @@
               {
                 "version_added": "35",
                 "partial_implementation": true,
-                "notes": "Does not affect stroked HTML text, see <a href='https://crbug.com/41372165'>bug 41372165</a>"
+                "notes": "Does not affect stroked HTML text, see [bug 41372165](https://crbug.com/41372165)"
               }
             ],
             "chrome_android": "mirror",
@@ -35,12 +38,13 @@
               {
                 "version_added": "8",
                 "partial_implementation": true,
-                "notes": "Does not affect stroked HTML text, see <a href='https://webkit.org/b/168601'>bug 168601</a>"
+                "notes": "Does not affect stroked HTML text, see [bug 168601](https://webkit.org/b/168601)"
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/perspective-origin.json b/css/properties/perspective-origin.json
index 84140ea8c10d69..372b5442604a27 100644
--- a/css/properties/perspective-origin.json
+++ b/css/properties/perspective-origin.json
@@ -38,8 +38,7 @@
               },
               {
                 "prefix": "-moz-",
-                "version_added": "10",
-                "version_removed": "preview"
+                "version_added": "10"
               }
             ],
             "firefox_android": "mirror",
@@ -76,7 +75,8 @@
                 "prefix": "-webkit-",
                 "version_added": "3"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -115,7 +115,8 @@
                 "version_added": "2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -155,7 +156,8 @@
                 "version_added": "2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -195,7 +197,8 @@
                 "version_added": "2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -235,7 +238,8 @@
                 "version_added": "2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -275,7 +279,8 @@
                 "version_added": "2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/perspective.json b/css/properties/perspective.json
index 93f66ee8d433af..c33a3e29e8a7b7 100644
--- a/css/properties/perspective.json
+++ b/css/properties/perspective.json
@@ -38,8 +38,7 @@
               },
               {
                 "prefix": "-moz-",
-                "version_added": "10",
-                "version_removed": "preview"
+                "version_added": "10"
               }
             ],
             "firefox_android": "mirror",
@@ -61,7 +60,7 @@
             "safari_ios": [
               {
                 "version_added": "9",
-                "notes": "In iOS 13, the <code>perspective</code> property did not function properly. The issues were fixed in iOS 14."
+                "notes": "In iOS 13, the `perspective` property did not function properly. The issues were fixed in iOS 14."
               },
               {
                 "prefix": "-webkit-",
@@ -77,7 +76,8 @@
                 "prefix": "-webkit-",
                 "version_added": "3"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -114,7 +114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/place-content.json b/css/properties/place-content.json
index 79c1ede7711eda..def1c289f79d39 100644
--- a/css/properties/place-content.json
+++ b/css/properties/place-content.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/place-content",
           "spec_url": "https://drafts.csswg.org/css-align/#place-content",
+          "tags": [
+            "web-features:flexbox"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,7 +52,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "45",
-                "notes": "Starting with version 60, you can only specify a single value if it is valid for both <code>align-content</code> and <code>justify-content</code>."
+                "notes": "Starting with version 60, you can only specify a single value if it is valid for both `align-content` and `justify-content`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -62,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -85,7 +90,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "53",
-                "notes": "Starting with version 60, you can only specify a single value if it is valid for both <code>align-content</code> and <code>justify-content</code>."
+                "notes": "Starting with version 60, you can only specify a single value if it is valid for both `align-content` and `justify-content`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -99,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/place-items.json b/css/properties/place-items.json
index 6008ff4cd73f15..ff3856df1fc1d1 100644
--- a/css/properties/place-items.json
+++ b/css/properties/place-items.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/place-items",
           "spec_url": "https://drafts.csswg.org/css-align/#place-items-property",
+          "tags": [
+            "web-features:flexbox"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -97,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -133,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/place-self.json b/css/properties/place-self.json
index 2dc50f85a32f0f..08097b0c45a6fe 100644
--- a/css/properties/place-self.json
+++ b/css/properties/place-self.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/place-self",
           "spec_url": "https://drafts.csswg.org/css-align/#place-self-property",
+          "tags": [
+            "web-features:flexbox"
+          ],
           "support": {
             "chrome": {
               "version_added": "59"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -97,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -133,7 +139,46 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "position_absolute_context": {
+          "__compat": {
+            "description": "Supported for absolutely-positioned boxes",
+            "spec_url": "https://drafts.csswg.org/css-align/#place-self-property",
+            "tags": [
+              "web-features:absolute-positioning"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "122"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "134"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/pointer-events.json b/css/properties/pointer-events.json
index f5a2b1a09876c0..5ac521938e50b2 100644
--- a/css/properties/pointer-events.json
+++ b/css/properties/pointer-events.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-ui/#pointer-events-control",
             "https://svgwg.org/svg2-draft/interact.html#PointerEventsProperty"
           ],
+          "tags": [
+            "web-features:pointer-events"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "html_elements": {
           "__compat": {
             "description": "Applies to HTML elements",
+            "tags": [
+              "web-features:pointer-events"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -71,7 +78,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/position-anchor.json b/css/properties/position-anchor.json
index 40f880226ed474..4af3745cc4a399 100644
--- a/css/properties/position-anchor.json
+++ b/css/properties/position-anchor.json
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -40,7 +41,7 @@
         },
         "auto": {
           "__compat": {
-            "description": "<code>auto</code> value",
+            "description": "`auto` value",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#position-anchor",
             "tags": [
               "web-features:anchor-positioning"
@@ -49,7 +50,7 @@
               "chrome": {
                 "version_added": "125",
                 "partial_implementation": true,
-                "notes": "The generic <code>auto</code> value exists, but it does not yet have the effect described in the spec."
+                "notes": "The generic `auto` value exists, but it does not yet have the effect described in the spec."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -69,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/position-area.json b/css/properties/position-area.json
index 5a998081861764..92578018cb8cfd 100644
--- a/css/properties/position-area.json
+++ b/css/properties/position-area.json
@@ -9,10 +9,15 @@
             "web-features:anchor-positioning"
           ],
           "support": {
-            "chrome": {
-              "alternative_name": "inset-area",
-              "version_added": "125"
-            },
+            "chrome": [
+              {
+                "version_added": "129"
+              },
+              {
+                "alternative_name": "inset-area",
+                "version_added": "125"
+              }
+            ],
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
@@ -31,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -47,7 +53,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -67,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -84,7 +91,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -104,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -121,7 +129,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -141,7 +149,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -158,7 +167,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -178,7 +187,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -195,7 +205,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -215,7 +225,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -232,7 +243,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -252,7 +263,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -269,7 +281,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -289,7 +301,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -306,7 +319,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -326,7 +339,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -343,7 +357,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -363,7 +377,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -380,7 +395,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -400,7 +415,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -417,7 +433,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -437,7 +453,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -454,7 +471,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -474,7 +491,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -491,7 +509,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -511,7 +529,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -528,7 +547,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -548,7 +567,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -565,7 +585,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -585,7 +605,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -602,7 +623,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -622,7 +643,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -639,7 +661,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -659,7 +681,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -676,7 +699,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -696,7 +719,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -713,7 +737,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -733,7 +757,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -750,7 +775,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -770,7 +795,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -787,7 +813,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -807,7 +833,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -824,7 +851,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -844,7 +871,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -861,7 +889,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -881,7 +909,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -898,7 +927,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -918,7 +947,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -935,7 +965,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -955,7 +985,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -972,7 +1003,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -992,7 +1023,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1009,7 +1041,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1029,7 +1061,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1046,7 +1079,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1066,7 +1099,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1083,7 +1117,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1103,7 +1137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1120,7 +1155,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1140,7 +1175,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1157,7 +1193,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1177,7 +1213,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1194,7 +1231,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1214,7 +1251,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1231,7 +1269,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1251,7 +1289,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1268,7 +1307,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1288,7 +1327,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1305,7 +1345,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -1325,7 +1365,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/position-try-fallbacks.json b/css/properties/position-try-fallbacks.json
index 2727d3da38eb54..9c74961254d998 100644
--- a/css/properties/position-try-fallbacks.json
+++ b/css/properties/position-try-fallbacks.json
@@ -37,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -53,7 +54,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "128"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -73,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -90,7 +92,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "128"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -110,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -127,7 +130,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "128"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -147,7 +150,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -164,7 +168,7 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "125"
+                "version_added": "128"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -184,7 +188,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -195,7 +200,7 @@
         },
         "position-area": {
           "__compat": {
-            "description": "<code>position-area</code> values",
+            "description": "`position-area` values",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#valdef-position-try-fallbacks-position-area",
             "tags": [
               "web-features:anchor-positioning"
@@ -208,7 +213,7 @@
                 {
                   "version_added": "125",
                   "version_removed": "128",
-                  "notes": "<code>inset-area</code> values had to be wrapped inside an <code>inset-area()</code> function."
+                  "notes": "`inset-area` values had to be wrapped inside an `inset-area()` function."
                 }
               ],
               "chrome_android": "mirror",
@@ -228,7 +233,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/position-try-order.json b/css/properties/position-try-order.json
index e949f08de7f454..af0c0c9803c5f8 100644
--- a/css/properties/position-try-order.json
+++ b/css/properties/position-try-order.json
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -66,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -103,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -140,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -177,7 +181,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -214,7 +219,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/position-try.json b/css/properties/position-try.json
index 386d4dda99a70a..afa4304f5b26c9 100644
--- a/css/properties/position-try.json
+++ b/css/properties/position-try.json
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/position-visibility.json b/css/properties/position-visibility.json
index bbc2427a76d0ee..14652a8c5e0de5 100644
--- a/css/properties/position-visibility.json
+++ b/css/properties/position-visibility.json
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -66,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -103,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -140,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/position.json b/css/properties/position.json
index 74bdf51efcf2a1..6cd5cda539e1fa 100644
--- a/css/properties/position.json
+++ b/css/properties/position.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/position",
           "spec_url": "https://drafts.csswg.org/css-position/#position-property",
+          "tags": [
+            "web-features:position"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +45,9 @@
         "absolute": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position/#valdef-position-absolute",
+            "tags": [
+              "web-features:absolute-positioning"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -52,8 +59,8 @@
               "firefox": {
                 "version_added": "1",
                 "notes": [
-                  "Before Firefox 57, absolute positioning did not work correctly when applied to elements inside tables that have <a href='https://developer.mozilla.org/docs/Web/CSS/border-collapse'><code>border-collapse</code></a> applied to them (<a href='https://bugzil.la/1379306'>bug 1379306</a>).",
-                  "Before Firefox 30, absolute positioning of table rows and row groups was not supported (<a href='https://bugzil.la/63895'>bug 63895</a>)."
+                  "Before Firefox 57, absolute positioning did not work correctly when applied to elements inside tables that have [`border-collapse`](https://developer.mozilla.org/docs/Web/CSS/border-collapse) applied to them ([bug 1379306](https://bugzil.la/1379306)).",
+                  "Before Firefox 30, absolute positioning of table rows and row groups was not supported ([bug 63895](https://bugzil.la/63895))."
                 ]
               },
               "firefox_android": "mirror",
@@ -68,7 +75,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +88,9 @@
         "absolutely_positioned_flex_children": {
           "__compat": {
             "description": "Absolutely-positioned flex children",
+            "tags": [
+              "web-features:flexbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -103,7 +114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -115,6 +127,9 @@
         "fixed": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position/#valdef-position-fixed",
+            "tags": [
+              "web-features:fixed-positioning"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -125,12 +140,12 @@
               },
               "firefox": {
                 "version_added": "1",
-                "notes": "Before Firefox 44, <code>position: fixed</code> didn't create a stacking context in most cases. Firefox and the specification have been modified to mimic Chrome and Safari's long-time behavior."
+                "notes": "Before Firefox 44, `position: fixed` didn't create a stacking context in most cases. Firefox and the specification have been modified to mimic Chrome and Safari's long-time behavior."
               },
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "7",
-                "notes": "In Internet Explorer, fixed positioning doesn't work if the document is in <a href='https://developer.mozilla.org/docs/Web/HTML/Quirks_Mode_and_Standards_Mode'>quirks mode</a>."
+                "notes": "In Internet Explorer, fixed positioning doesn't work if the document is in [quirks mode](https://developer.mozilla.org/docs/Web/HTML/Quirks_Mode_and_Standards_Mode)."
               },
               "oculus": "mirror",
               "opera": {
@@ -142,7 +157,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -153,7 +169,7 @@
         },
         "position_sticky_table_elements": {
           "__compat": {
-            "description": "Table elements as <code>sticky</code> positioning containers",
+            "description": "Table elements as `sticky` positioning containers",
             "tags": [
               "web-features:sticky-positioning"
             ],
@@ -167,7 +183,7 @@
               },
               "firefox": {
                 "version_added": "59",
-                "notes": "Borders do not display on table headers if <a href='https://developer.mozilla.org/docs/Web/CSS/border-collapse'><code>border-collapse</code></a> is set to <code>collapse</code> (<a href='https://bugzil.la/1727594'>bug 1727594</a>)."
+                "notes": "Borders do not display on table headers if [`border-collapse`](https://developer.mozilla.org/docs/Web/CSS/border-collapse) is set to `collapse` ([bug 1727594](https://bugzil.la/1727594))."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -181,7 +197,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -193,6 +210,9 @@
         "relative": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position/#valdef-position-relative",
+            "tags": [
+              "web-features:relative-positioning"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -216,7 +236,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -228,6 +249,9 @@
         "static": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position/#valdef-position-static",
+            "tags": [
+              "web-features:static-positioning"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -251,7 +275,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -295,7 +320,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/print-color-adjust.json b/css/properties/print-color-adjust.json
index 47aa9500ceefa1..66ef453ea8c9c3 100644
--- a/css/properties/print-color-adjust.json
+++ b/css/properties/print-color-adjust.json
@@ -5,20 +5,23 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/print-color-adjust",
           "spec_url": "https://drafts.csswg.org/css-color-adjust/#propdef-print-color-adjust",
+          "tags": [
+            "web-features:print-color-adjust"
+          ],
           "support": {
             "chrome": {
               "prefix": "-webkit-",
               "version_added": "17",
               "notes": [
-                "Chrome does not print backgrounds of the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/body'><code>&lt;body&gt;</code></a> element. If this property is set to <code>exact</code> for the <code>&lt;body&gt;</code> element, it will apply only to its descendants.",
-                "Before version 26, if background images are clipped (for example, when using <code>background-image</code> sprites) and <code>-webkit-print-color-adjust</code> is set to <code>exact</code>, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See <a href='https://crbug.com/131054'>bug 131054</a>."
+                "Chrome does not print backgrounds of the [`&lt;body&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/body) element. If this property is set to `exact` for the `&lt;body&gt;` element, it will apply only to its descendants.",
+                "Before version 26, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See [bug 40219905](https://crbug.com/40219905)."
               ]
             },
             "chrome_android": "mirror",
             "edge": {
               "prefix": "-webkit-",
               "version_added": "79",
-              "notes": "Edge does not print backgrounds of the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/body'><code>&lt;body&gt;</code></a> element. If this property is set to <code>exact</code> for the <code>&lt;body&gt;</code> element, it will apply only to its descendants."
+              "notes": "Edge does not print backgrounds of the [`&lt;body&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/body) element. If this property is set to `exact` for the `&lt;body&gt;` element, it will apply only to its descendants."
             },
             "firefox": [
               {
@@ -37,12 +40,12 @@
             "opera": {
               "prefix": "-webkit-",
               "version_added": "15",
-              "notes": "Opera does not print backgrounds of the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/body'><code>&lt;body&gt;</code></a> element. If this property is set to <code>exact</code> for the <code>&lt;body&gt;</code> element, it will apply only to its descendants."
+              "notes": "Opera does not print backgrounds of the [`&lt;body&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/body) element. If this property is set to `exact` for the `&lt;body&gt;` element, it will apply only to its descendants."
             },
             "opera_android": {
               "prefix": "-webkit-",
               "version_added": "15",
-              "notes": "Opera does not print backgrounds of the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/body'><code>&lt;body&gt;</code></a> element. If this property is set to <code>exact</code> for the <code>&lt;body&gt;</code> element, it will apply only to its descendants."
+              "notes": "Opera does not print backgrounds of the [`&lt;body&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/body) element. If this property is set to `exact` for the `&lt;body&gt;` element, it will apply only to its descendants."
             },
             "safari": [
               {
@@ -51,7 +54,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "6",
-                "notes": "Safari does not print backgrounds of the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/body'><code>&lt;body&gt;</code></a> element. If this property is set to <code>exact</code> for the <code>&lt;body&gt;</code> element, it will apply only to its descendants."
+                "notes": "Safari does not print backgrounds of the [`&lt;body&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/body) element. If this property is set to `exact` for the `&lt;body&gt;` element, it will apply only to its descendants."
               }
             ],
             "safari_ios": "mirror",
@@ -59,15 +62,16 @@
               "prefix": "-webkit-",
               "version_added": "1.0",
               "notes": [
-                "Samsung Internet does not print backgrounds of the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/body'><code>&lt;body&gt;</code></a> element. If this property is set to <code>exact</code> for the <code>&lt;body&gt;</code> element, it will apply only to its descendants.",
-                "In version 1, if background images are clipped (for example, when using <code>background-image</code> sprites) and <code>-webkit-print-color-adjust</code> is set to <code>exact</code>, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See <a href='https://crbug.com/131054'>bug 131054</a>."
+                "Samsung Internet does not print backgrounds of the [`&lt;body&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/body) element. If this property is set to `exact` for the `&lt;body&gt;` element, it will apply only to its descendants.",
+                "In version 1, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See [bug 40219905](https://crbug.com/40219905)."
               ]
             },
             "webview_android": {
               "prefix": "-webkit-",
               "version_added": "4.4",
-              "notes": "WebView does not print backgrounds of the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/body'><code>&lt;body&gt;</code></a> element. If this property is set to <code>exact</code> for the <code>&lt;body&gt;</code> element, it will apply only to its descendants."
-            }
+              "notes": "WebView does not print backgrounds of the [`&lt;body&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/body) element. If this property is set to `exact` for the `&lt;body&gt;` element, it will apply only to its descendants."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,6 +82,9 @@
         "economy": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-color-adjust/#valdef-print-color-adjust-economy",
+            "tags": [
+              "web-features:print-color-adjust"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -99,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -111,6 +119,9 @@
         "exact": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-color-adjust/#valdef-print-color-adjust-exact",
+            "tags": [
+              "web-features:print-color-adjust"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -132,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/quotes.json b/css/properties/quotes.json
index bf4e3a20a4f773..07dc3abb20600b 100644
--- a/css/properties/quotes.json
+++ b/css/properties/quotes.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/quotes",
           "spec_url": "https://drafts.csswg.org/css-content/#quotes",
+          "tags": [
+            "web-features:quotes"
+          ],
           "support": {
             "chrome": {
               "version_added": "11"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +45,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-content/#valdef-quotes-auto",
+            "tags": [
+              "web-features:quotes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -63,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -75,6 +83,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-content/#valdef-quotes-none",
+            "tags": [
+              "web-features:quotes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "11"
@@ -98,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/r.json b/css/properties/r.json
index 1420910e1bf24c..3068066c03b2fa 100644
--- a/css/properties/r.json
+++ b/css/properties/r.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/r",
           "spec_url": "https://svgwg.org/svg2-draft/geometry.html#R",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/reading-flow.json b/css/properties/reading-flow.json
index 871285945e14eb..2612941291f3b4 100644
--- a/css/properties/reading-flow.json
+++ b/css/properties/reading-flow.json
@@ -4,6 +4,9 @@
       "reading-flow": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-display-4/#reading-flow",
+          "tags": [
+            "web-features:reading-flow"
+          ],
           "support": {
             "chrome": {
               "version_added": "128",
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/resize.json b/css/properties/resize.json
index 2219618f5a1861..26e5744ee02a5a 100644
--- a/css/properties/resize.json
+++ b/css/properties/resize.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/resize",
           "spec_url": "https://drafts.csswg.org/css-ui/#resize",
+          "tags": [
+            "web-features:resize"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -33,7 +36,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
         },
         "block": {
           "__compat": {
+            "tags": [
+              "web-features:resize"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -66,7 +73,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
         "block_level_support": {
           "__compat": {
             "description": "Support on block level, replaced, table cell, or inline block elements",
+            "tags": [
+              "web-features:resize"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -86,7 +97,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "5",
-                "notes": "<code>resize</code> doesn't have any effect on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/iframe'><code>&lt;iframe&gt;</code></a>. See <a href='https://bugzil.la/680823'>bug 680823</a>)"
+                "notes": "`resize` doesn't have any effect on [`&lt;iframe&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/iframe). See [bug 680823](https://bugzil.la/680823))"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -104,7 +115,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -115,6 +127,9 @@
         },
         "inline": {
           "__compat": {
+            "tags": [
+              "web-features:resize"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -138,7 +153,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/right.json b/css/properties/right.json
index f791e518820a54..846152f270db8f 100644
--- a/css/properties/right.json
+++ b/css/properties/right.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/right",
           "spec_url": "https://drafts.csswg.org/css-position/#insets",
+          "tags": [
+            "web-features:physical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,7 +44,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -67,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -79,6 +84,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position/#valdef-top-auto",
+            "tags": [
+              "web-features:physical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -102,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/rotate.json b/css/properties/rotate.json
index e16e387389fbe2..222c2274c60843 100644
--- a/css/properties/rotate.json
+++ b/css/properties/rotate.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#valdef-translate-none",
+            "tags": [
+              "web-features:individual-transforms"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -73,6 +78,9 @@
         "x_y_z_angle": {
           "__compat": {
             "description": "x, y, or z axis name plus angle value",
+            "tags": [
+              "web-features:individual-transforms"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -94,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/row-gap.json b/css/properties/row-gap.json
index a3b7b73b8d9bdb..29b209220893d8 100644
--- a/css/properties/row-gap.json
+++ b/css/properties/row-gap.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/row-gap",
           "spec_url": "https://drafts.csswg.org/css-align/#column-row-gap",
+          "tags": [
+            "web-features:grid"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,7 +140,8 @@
                   "version_added": "6.0"
                 }
               ],
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/ruby-align.json b/css/properties/ruby-align.json
index f632d648e28b90..74e9340d6d6455 100644
--- a/css/properties/ruby-align.json
+++ b/css/properties/ruby-align.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/ruby-align",
           "spec_url": "https://drafts.csswg.org/css-ruby/#ruby-align-property",
+          "tags": [
+            "web-features:ruby-align"
+          ],
           "support": {
             "chrome": {
               "version_added": "128"
@@ -17,17 +20,18 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": false,
-              "notes": "Internet Explorer 9 and later supports an earlier draft of CSS Ruby with non-standard values for this property: <code>auto</code>, <code>left</code>, <code>center</code>, <code>right</code>, <code>distribute-letter</code>, <code>distribute-space</code>, and <code>line-edge</code>."
+              "notes": "Internet Explorer 9 and later supports an earlier draft of CSS Ruby with non-standard values for this property: `auto`, `left`, `center`, `right`, `distribute-letter`, `distribute-space`, and `line-edge`."
             },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,6 +42,9 @@
         "center": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ruby/#valdef-ruby-align-center",
+            "tags": [
+              "web-features:ruby-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "128"
@@ -55,11 +62,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -71,6 +79,9 @@
         "space-around": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ruby/#valdef-ruby-align-space-around",
+            "tags": [
+              "web-features:ruby-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "128"
@@ -88,11 +99,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -104,6 +116,9 @@
         "space-between": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ruby/#valdef-ruby-align-space-between",
+            "tags": [
+              "web-features:ruby-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "128"
@@ -121,11 +136,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -137,6 +153,9 @@
         "start": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-ruby/#valdef-ruby-align-start",
+            "tags": [
+              "web-features:ruby-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "128"
@@ -154,11 +173,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/frequency.json b/css/properties/ruby-overhang.json
similarity index 72%
rename from css/types/frequency.json
rename to css/properties/ruby-overhang.json
index c27d4b3024474c..d6f5cc9c40d3ce 100644
--- a/css/types/frequency.json
+++ b/css/properties/ruby-overhang.json
@@ -1,11 +1,12 @@
 {
   "css": {
-    "types": {
-      "frequency": {
+    "properties": {
+      "ruby-overhang": {
         "__compat": {
-          "description": "<code>&lt;frequency&gt;</code>",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/frequency",
-          "spec_url": "https://drafts.csswg.org/css-values/#frequency",
+          "spec_url": "https://drafts.csswg.org/css-ruby/#propdef-ruby-overhang",
+          "tags": [
+            "web-features:ruby-overhang"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -13,8 +14,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/741643"
+              "version_added": false
             },
             "firefox_android": "mirror",
             "ie": {
@@ -24,11 +24,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,9 +37,12 @@
             "deprecated": false
           }
         },
-        "hz": {
+        "auto": {
           "__compat": {
-            "description": "<code>Hz</code> unit",
+            "spec_url": "https://drafts.csswg.org/css-ruby/#valdef-ruby-overhang-auto",
+            "tags": [
+              "web-features:ruby-overhang"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -56,11 +60,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -69,9 +74,12 @@
             }
           }
         },
-        "khz": {
+        "none": {
           "__compat": {
-            "description": "<code>kHz</code> unit",
+            "spec_url": "https://drafts.csswg.org/css-ruby/#valdef-ruby-overhang-none",
+            "tags": [
+              "web-features:ruby-overhang"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -89,11 +97,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/ruby-position.json b/css/properties/ruby-position.json
index bd390c861a204a..d99ee1262c0f31 100644
--- a/css/properties/ruby-position.json
+++ b/css/properties/ruby-position.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/ruby-position",
           "spec_url": "https://drafts.csswg.org/css-ruby/#rubypos",
+          "tags": [
+            "web-features:ruby-position"
+          ],
           "support": {
             "chrome": [
               {
@@ -13,7 +16,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "Implemented as a non-standard, prefixed, version of <code>ruby-position</code>, <code>-webkit-ruby-position</code>: it has two properties: <code>before</code> and <code>after</code> (both equivalent, for ltr and rtl scripts to the standard <code>over</code> value used with <code>ruby-align: start</code>)."
+                "notes": "Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`)."
               }
             ],
             "chrome_android": "mirror",
@@ -24,7 +27,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "79",
-                "notes": "Implemented as a non-standard, prefixed, version of <code>ruby-position</code>, <code>-webkit-ruby-position</code>: it has two properties: <code>before</code> and <code>after</code> (both equivalent, for ltr and rtl scripts to the standard <code>over</code> value used with <code>ruby-align: start</code>)."
+                "notes": "Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`)."
               },
               {
                 "version_added": "12",
@@ -37,21 +40,27 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": false,
-              "notes": "Internet Explorer 9 and later support an old draft values: <code>inline</code> (equivalent of having <code>display: inline</code> on the ruby), and <code>above</code> (synonym of the modern <code>over</code>)."
+              "notes": "Internet Explorer 9 and later support an old draft values: `inline` (equivalent of having `display: inline` on the ruby), and `above` (synonym of the modern `over`)."
             },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
-            "safari": {
-              "prefix": "-webkit-",
-              "version_added": "7",
-              "notes": "Implemented as a non-standard, prefixed, version of <code>ruby-position</code>, <code>-webkit-ruby-position</code>: it has two properties: <code>before</code> and <code>after</code> (both equivalent, for ltr and rtl scripts to the standard <code>over</code> value used with <code>ruby-align: start</code>)."
-            },
+            "safari": [
+              {
+                "version_added": "18.2"
+              },
+              {
+                "prefix": "-webkit-",
+                "version_added": "7",
+                "notes": "Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`)."
+              }
+            ],
             "safari_ios": "mirror",
             "samsunginternet_android": {
               "version_added": "14.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,10 +70,13 @@
         },
         "alternate": {
           "__compat": {
+            "tags": [
+              "web-features:ruby-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/1191394"
+                "impl_url": "https://crbug.com/40174517"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -83,7 +95,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -91,6 +104,113 @@
               "deprecated": false
             }
           }
+        },
+        "inter-character": {
+          "__compat": {
+            "tags": [
+              "web-features:ruby-position"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "84",
+                "partial_implementation": true,
+                "notes": "This value is only supported with the prefixed version of the property."
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "over": {
+          "__compat": {
+            "tags": [
+              "web-features:ruby-position"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "84"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "≤72"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "under": {
+          "__compat": {
+            "tags": [
+              "web-features:ruby-position"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "84"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "≤72"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/css/properties/rx.json b/css/properties/rx.json
index 483f9126afba92..d17fbca0962df2 100644
--- a/css/properties/rx.json
+++ b/css/properties/rx.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/rx",
           "spec_url": "https://svgwg.org/svg2-draft/geometry.html#RX",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -25,11 +26,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": false,
-              "notes": "The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See <a href='https://webkit.org/b/266090'>bug 266090</a>."
+              "notes": "The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See [bug 266090](https://webkit.org/b/266090)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/ry.json b/css/properties/ry.json
index a47f1cde21730a..1e4fb5c2f8524d 100644
--- a/css/properties/ry.json
+++ b/css/properties/ry.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/ry",
           "spec_url": "https://svgwg.org/svg2-draft/geometry.html#RY",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -25,11 +26,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": false,
-              "notes": "The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See <a href='https://webkit.org/b/266090'>bug 266090</a>."
+              "notes": "The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See [bug 266090](https://webkit.org/b/266090)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scale.json b/css/properties/scale.json
index 938c3ddc3e2eea..df1d58f0c039d9 100644
--- a/css/properties/scale.json
+++ b/css/properties/scale.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#valdef-translate-none",
+            "tags": [
+              "web-features:individual-transforms"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-behavior.json b/css/properties/scroll-behavior.json
index e4db48b1a01b0a..e050b150a32842 100644
--- a/css/properties/scroll-behavior.json
+++ b/css/properties/scroll-behavior.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/scroll-behavior",
           "spec_url": "https://drafts.csswg.org/css-overflow/#smooth-scrolling",
+          "tags": [
+            "web-features:scroll-behavior"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-scroll-behavior-auto",
+            "tags": [
+              "web-features:scroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "smooth": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-scroll-behavior-smooth",
+            "tags": [
+              "web-features:scroll-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-margin-block-end.json b/css/properties/scroll-margin-block-end.json
index 497e4b176e21a0..d113088e02d403 100644
--- a/css/properties/scroll-margin-block-end.json
+++ b/css/properties/scroll-margin-block-end.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin-block-start.json b/css/properties/scroll-margin-block-start.json
index e60da67ba9e744..0eba89151ca2f3 100644
--- a/css/properties/scroll-margin-block-start.json
+++ b/css/properties/scroll-margin-block-start.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin-block.json b/css/properties/scroll-margin-block.json
index 3f2aa8607241eb..94dd38db2e2eb6 100644
--- a/css/properties/scroll-margin-block.json
+++ b/css/properties/scroll-margin-block.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin-bottom.json b/css/properties/scroll-margin-bottom.json
index 006d22f74ea386..472e75fb5da190 100644
--- a/css/properties/scroll-margin-bottom.json
+++ b/css/properties/scroll-margin-bottom.json
@@ -32,7 +32,7 @@
                 "alternative_name": "scroll-snap-margin-bottom",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "safari_ios": [
@@ -43,11 +43,12 @@
                 "alternative_name": "scroll-snap-margin-bottom",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin-inline-end.json b/css/properties/scroll-margin-inline-end.json
index 51824fe0737f49..97362e7e701297 100644
--- a/css/properties/scroll-margin-inline-end.json
+++ b/css/properties/scroll-margin-inline-end.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin-inline-start.json b/css/properties/scroll-margin-inline-start.json
index cc458a78abdcc8..d78ced84243890 100644
--- a/css/properties/scroll-margin-inline-start.json
+++ b/css/properties/scroll-margin-inline-start.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin-inline.json b/css/properties/scroll-margin-inline.json
index 07db54956d7297..1777feba572358 100644
--- a/css/properties/scroll-margin-inline.json
+++ b/css/properties/scroll-margin-inline.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin-left.json b/css/properties/scroll-margin-left.json
index 5224aff0e72f4f..87e37d0e46835c 100644
--- a/css/properties/scroll-margin-left.json
+++ b/css/properties/scroll-margin-left.json
@@ -32,7 +32,7 @@
                 "alternative_name": "scroll-snap-margin-left",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "safari_ios": [
@@ -43,11 +43,12 @@
                 "alternative_name": "scroll-snap-margin-left",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin-right.json b/css/properties/scroll-margin-right.json
index 6d66fa1192fe6e..c86c7da4cc948a 100644
--- a/css/properties/scroll-margin-right.json
+++ b/css/properties/scroll-margin-right.json
@@ -32,7 +32,7 @@
                 "alternative_name": "scroll-snap-margin-right",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "safari_ios": [
@@ -43,11 +43,12 @@
                 "alternative_name": "scroll-snap-margin-right",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin-top.json b/css/properties/scroll-margin-top.json
index 1920180a5378b7..9f6ed2825d2351 100644
--- a/css/properties/scroll-margin-top.json
+++ b/css/properties/scroll-margin-top.json
@@ -32,7 +32,7 @@
                 "alternative_name": "scroll-snap-margin-top",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "safari_ios": [
@@ -43,11 +43,12 @@
                 "alternative_name": "scroll-snap-margin-top",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-margin.json b/css/properties/scroll-margin.json
index 75ab18229f11b4..aeb8b3a5cf2232 100644
--- a/css/properties/scroll-margin.json
+++ b/css/properties/scroll-margin.json
@@ -22,7 +22,7 @@
                 "version_added": "68",
                 "version_removed": "90",
                 "partial_implementation": true,
-                "notes": "The <code>scroll-margin</code> property can cause an element's visibility to be incorrectly calculated for <code>element.focus()</code>. See <a href='https://bugzil.la/1708303'>bug 1708303</a>."
+                "notes": "The `scroll-margin` property can cause an element's visibility to be incorrectly calculated for `element.focus()`. See [bug 1708303](https://bugzil.la/1708303)."
               }
             ],
             "firefox_android": "mirror",
@@ -40,7 +40,7 @@
                 "alternative_name": "scroll-snap-margin",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "safari_ios": [
@@ -51,11 +51,12 @@
                 "alternative_name": "scroll-snap-margin",
                 "version_added": "11",
                 "partial_implementation": true,
-                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/189265'>bug 189265</a>."
+                "notes": "Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 189265](https://webkit.org/b/189265)."
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-padding-block-end.json b/css/properties/scroll-padding-block-end.json
index 7c604b182b9644..3083451b7da908 100644
--- a/css/properties/scroll-padding-block-end.json
+++ b/css/properties/scroll-padding-block-end.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-padding-auto",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-padding-block-start.json b/css/properties/scroll-padding-block-start.json
index 29d101e496e747..1de5db496a8019 100644
--- a/css/properties/scroll-padding-block-start.json
+++ b/css/properties/scroll-padding-block-start.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#propdef-scroll-padding-block-start",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-padding-block.json b/css/properties/scroll-padding-block.json
index e5e8c31193cf82..a2cdb31c2db6fb 100644
--- a/css/properties/scroll-padding-block.json
+++ b/css/properties/scroll-padding-block.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#propdef-scroll-padding-block",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-padding-bottom.json b/css/properties/scroll-padding-bottom.json
index b60578f5663c53..5897a8fd016330 100644
--- a/css/properties/scroll-padding-bottom.json
+++ b/css/properties/scroll-padding-bottom.json
@@ -32,12 +32,13 @@
                 "version_added": "11",
                 "version_removed": "14.1",
                 "partial_implementation": true,
-                "notes": "Scroll padding is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/179379'>bug 179379</a>."
+                "notes": "Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 179379](https://webkit.org/b/179379)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-padding-inline-end.json b/css/properties/scroll-padding-inline-end.json
index 8fae2802a3cb44..8325edde3303e4 100644
--- a/css/properties/scroll-padding-inline-end.json
+++ b/css/properties/scroll-padding-inline-end.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-padding-auto",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-padding-inline-start.json b/css/properties/scroll-padding-inline-start.json
index cbbd7b6024a95d..c16d3c8be01712 100644
--- a/css/properties/scroll-padding-inline-start.json
+++ b/css/properties/scroll-padding-inline-start.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-padding-auto",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-padding-inline.json b/css/properties/scroll-padding-inline.json
index 89392e798d2d2d..abb3baa5993ce8 100644
--- a/css/properties/scroll-padding-inline.json
+++ b/css/properties/scroll-padding-inline.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-padding-auto",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-padding-left.json b/css/properties/scroll-padding-left.json
index 2f90b1d4f4691b..fd49c86bbbd626 100644
--- a/css/properties/scroll-padding-left.json
+++ b/css/properties/scroll-padding-left.json
@@ -32,12 +32,13 @@
                 "version_added": "11",
                 "version_removed": "14.1",
                 "partial_implementation": true,
-                "notes": "Scroll padding is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/179379'>bug 179379</a>."
+                "notes": "Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 179379](https://webkit.org/b/179379)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-padding-right.json b/css/properties/scroll-padding-right.json
index 22f90ad6eb6c09..7ee7a51c99fb82 100644
--- a/css/properties/scroll-padding-right.json
+++ b/css/properties/scroll-padding-right.json
@@ -32,12 +32,13 @@
                 "version_added": "11",
                 "version_removed": "14.1",
                 "partial_implementation": true,
-                "notes": "Scroll padding is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/179379'>bug 179379</a>."
+                "notes": "Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 179379](https://webkit.org/b/179379)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-padding-top.json b/css/properties/scroll-padding-top.json
index 63f9591106ef4a..db34cda204f736 100644
--- a/css/properties/scroll-padding-top.json
+++ b/css/properties/scroll-padding-top.json
@@ -32,12 +32,13 @@
                 "version_added": "11",
                 "version_removed": "14.1",
                 "partial_implementation": true,
-                "notes": "Scroll padding is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/179379'>bug 179379</a>."
+                "notes": "Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 179379](https://webkit.org/b/179379)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/scroll-padding.json b/css/properties/scroll-padding.json
index fa774ff58901fb..705002737e7e0c 100644
--- a/css/properties/scroll-padding.json
+++ b/css/properties/scroll-padding.json
@@ -32,12 +32,13 @@
                 "version_added": "11",
                 "version_removed": "14.1",
                 "partial_implementation": true,
-                "notes": "Scroll padding is not applied for scrolls to fragment target or <code>scrollIntoView()</code>, see <a href='https://webkit.org/b/179379'>bug 179379</a>."
+                "notes": "Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see [bug 179379](https://webkit.org/b/179379)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,6 +49,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-padding-auto",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -69,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-snap-align.json b/css/properties/scroll-snap-align.json
index b3ce979fb22db4..579b946058762a 100644
--- a/css/properties/scroll-snap-align.json
+++ b/css/properties/scroll-snap-align.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "center": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-align-center",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -73,6 +78,9 @@
         "end": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-align-end",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -94,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -106,6 +115,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-align-none",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -127,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -139,6 +152,9 @@
         "start": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-align-start",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -160,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-snap-stop.json b/css/properties/scroll-snap-stop.json
index a57bf87282af42..1fcdfa29019e6b 100644
--- a/css/properties/scroll-snap-stop.json
+++ b/css/properties/scroll-snap-stop.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "always": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-stop-always",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "75"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -73,6 +78,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-stop-normal",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "75"
@@ -94,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-snap-type.json b/css/properties/scroll-snap-type.json
index a45ca89002fe1b..9db2cfc2736f31 100644
--- a/css/properties/scroll-snap-type.json
+++ b/css/properties/scroll-snap-type.json
@@ -32,7 +32,7 @@
                 "version_added": "68",
                 "version_removed": "99",
                 "partial_implementation": true,
-                "notes": "On macOS Monterey, scroll snapping does not complete reliably. See <a href='https://bugzil.la/1749352'>bug 1749352</a>."
+                "notes": "On macOS Monterey, scroll snapping does not complete reliably. See [bug 1749352](https://bugzil.la/1749352)."
               },
               {
                 "version_added": "39",
@@ -70,7 +70,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -81,6 +82,9 @@
         "block": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-type-block",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -102,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,6 +119,9 @@
         "both": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-type-both",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -135,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -147,6 +156,9 @@
         "inline": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-type-inline",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -168,7 +180,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -180,6 +193,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-type-none",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -201,7 +217,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -213,6 +230,9 @@
         "x": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-type-x",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -234,7 +254,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -246,6 +267,9 @@
         "y": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scroll-snap/#valdef-scroll-snap-type-y",
+            "tags": [
+              "web-features:scroll-snap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -267,7 +291,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scroll-timeline-axis.json b/css/properties/scroll-timeline-axis.json
index bdfc085a5b64a6..34cb76f424faff 100644
--- a/css/properties/scroll-timeline-axis.json
+++ b/css/properties/scroll-timeline-axis.json
@@ -25,7 +25,7 @@
               ],
               "notes": [
                 "The syntax of the shorthand property uses the fixed order of name and then the axis.",
-                "Supports the deprecated <code>horizontal</code> and <code>vertical</code> values, and not the <code>x</code> and <code>y</code> values.",
+                "Supports the deprecated `horizontal` and `vertical` values, and not the `x` and `y` values.",
                 "The `@scroll-timeline` at-rule is replaced with the longhand properties `scroll-timeline-name` and `scroll-timeline-axis` and the shorthand property `scroll-timeline`."
               ]
             },
@@ -42,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -78,7 +79,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -116,7 +118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -154,7 +157,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -192,7 +196,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/scroll-timeline-name.json b/css/properties/scroll-timeline-name.json
index ea2281e0dd43ef..b2646bb37babe6 100644
--- a/css/properties/scroll-timeline-name.json
+++ b/css/properties/scroll-timeline-name.json
@@ -41,7 +41,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/scroll-timeline.json b/css/properties/scroll-timeline.json
index de40172dc39680..1e3e6e33a232b9 100644
--- a/css/properties/scroll-timeline.json
+++ b/css/properties/scroll-timeline.json
@@ -25,8 +25,8 @@
               ],
               "notes": [
                 "The syntax of the shorthand property uses the fixed order of name and then the axis.",
-                "Supports the deprecated <code>horizontal</code> and <code>vertical</code> axis values, and not the <code>x</code> and <code>y</code> values.",
-                "The <code>@scroll-timeline</code> at-rule is replaced with the longhand properties <code>scroll-timeline-name</code> and <code>scroll-timeline-axis</code> and the shorthand property <code>scroll-timeline</code>."
+                "Supports the deprecated `horizontal` and `vertical` axis values, and not the `x` and `y` values.",
+                "The `@scroll-timeline` at-rule is replaced with the longhand properties `scroll-timeline-name` and `scroll-timeline-axis` and the shorthand property `scroll-timeline`."
               ]
             },
             "firefox_android": "mirror",
@@ -42,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/scrollbar-color.json b/css/properties/scrollbar-color.json
index 944c66618f54b5..6561f569e76e03 100644
--- a/css/properties/scrollbar-color.json
+++ b/css/properties/scrollbar-color.json
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +44,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scrollbars/#valdef-scrollbar-color-auto",
+            "tags": [
+              "web-features:scrollbar-color"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -66,7 +70,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scrollbar-gutter.json b/css/properties/scrollbar-gutter.json
index 49c0f8c8fc6760..8c7aba9d75f195 100644
--- a/css/properties/scrollbar-gutter.json
+++ b/css/properties/scrollbar-gutter.json
@@ -25,18 +25,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "17",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "CSS scrollerbar-gutter property",
-                  "value_to_set": "true"
-                }
-              ]
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-scrollbar-gutter-auto",
+            "tags": [
+              "web-features:scrollbar-gutter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "94"
@@ -64,11 +61,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +78,9 @@
         "stable": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#valdef-scrollbar-gutter-stable",
+            "tags": [
+              "web-features:scrollbar-gutter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "94"
@@ -97,11 +98,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/scrollbar-width.json b/css/properties/scrollbar-width.json
index f488caf38a2e33..70a3946ae3b529 100644
--- a/css/properties/scrollbar-width.json
+++ b/css/properties/scrollbar-width.json
@@ -25,14 +25,14 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false,
-              "impl_url": "https://webkit.org/b/231588"
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +43,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scrollbars/#valdef-scrollbar-width-auto",
+            "tags": [
+              "web-features:scrollbar-width"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -60,13 +63,14 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +82,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scrollbars/#valdef-scrollbar-width-none",
+            "tags": [
+              "web-features:scrollbar-width"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -95,13 +102,14 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -113,6 +121,9 @@
         "thin": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-scrollbars/#valdef-scrollbar-width-thin",
+            "tags": [
+              "web-features:scrollbar-width"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -130,13 +141,14 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/shape-image-threshold.json b/css/properties/shape-image-threshold.json
index f7c33a249d791b..55466b5e3c0f48 100644
--- a/css/properties/shape-image-threshold.json
+++ b/css/properties/shape-image-threshold.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/shape-image-threshold",
           "spec_url": "https://drafts.csswg.org/css-shapes/#shape-image-threshold-property",
+          "tags": [
+            "web-features:shape-outside"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "percentages": {
           "__compat": {
             "description": "Support for percentage opacity values",
+            "tags": [
+              "web-features:shape-outside"
+            ],
             "support": {
               "chrome": {
                 "version_added": "78"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/shape-margin.json b/css/properties/shape-margin.json
index e1e58c5ac5c026..f9ad6fa0c41d3e 100644
--- a/css/properties/shape-margin.json
+++ b/css/properties/shape-margin.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/shape-margin",
           "spec_url": "https://drafts.csswg.org/css-shapes/#shape-margin-property",
+          "tags": [
+            "web-features:shape-outside"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -34,7 +37,8 @@
               "version_added": "10.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/shape-outside.json b/css/properties/shape-outside.json
index 375188b23c4a8f..d8c284cbb1c975 100644
--- a/css/properties/shape-outside.json
+++ b/css/properties/shape-outside.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/shape-outside",
           "spec_url": "https://drafts.csswg.org/css-shapes/#shape-outside-property",
+          "tags": [
+            "web-features:shape-outside"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,8 +40,11 @@
         },
         "circle": {
           "__compat": {
-            "description": "<code>circle()</code>",
+            "description": "`circle()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape#circle()",
+            "tags": [
+              "web-features:shape-outside"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -59,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,9 +78,12 @@
         },
         "gradient": {
           "__compat": {
-            "description": "<code>&lt;gradient&gt;</code>",
+            "description": "`&lt;gradient&gt;`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient",
             "spec_url": "https://drafts.csswg.org/css-images/#gradients",
+            "tags": [
+              "web-features:shape-outside"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -94,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,9 +117,12 @@
         },
         "image": {
           "__compat": {
-            "description": "<code>&lt;image&gt;</code>",
+            "description": "`&lt;image&gt;`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image",
             "spec_url": "https://drafts.csswg.org/css-images/#image-values",
+            "tags": [
+              "web-features:shape-outside"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -129,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,8 +156,11 @@
         },
         "inset": {
           "__compat": {
-            "description": "<code>inset()</code>",
+            "description": "`inset()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape#inset()",
+            "tags": [
+              "web-features:shape-outside"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -163,7 +182,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -175,6 +195,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-shapes/#valdef-shape-outside-none",
+            "tags": [
+              "web-features:shape-outside"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -196,7 +219,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -207,9 +231,12 @@
         },
         "path": {
           "__compat": {
-            "description": "<code>path()</code>",
+            "description": "`path()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/path",
             "spec_url": "https://drafts.csswg.org/css-shapes/#funcdef-basic-shape-path",
+            "tags": [
+              "web-features:shape-outside"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -231,7 +258,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -242,8 +270,11 @@
         },
         "polygon": {
           "__compat": {
-            "description": "<code>polygon()</code>",
+            "description": "`polygon()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape#polygon()",
+            "tags": [
+              "web-features:shape-outside"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -265,7 +296,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/shape-rendering.json b/css/properties/shape-rendering.json
index f325d819b61f2e..8f2f4a873ca8cc 100644
--- a/css/properties/shape-rendering.json
+++ b/css/properties/shape-rendering.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/shape-rendering",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#ShapeRendering",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/speak-as.json b/css/properties/speak-as.json
index 468bfcbc607b43..1c621176ebce8a 100644
--- a/css/properties/speak-as.json
+++ b/css/properties/speak-as.json
@@ -4,6 +4,9 @@
       "speak-as": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-speech-1/#speaking-props-speak-as",
+          "tags": [
+            "web-features:speak-as"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -37,6 +41,9 @@
         "digits": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-speech-1/#valdef-speak-as-digits",
+            "tags": [
+              "web-features:speak-as"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -70,6 +78,9 @@
         "literal-punctuation": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-speech-1/#valdef-speak-as-literal-punctuation",
+            "tags": [
+              "web-features:speak-as"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -103,6 +115,9 @@
         "no-punctuation": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-speech-1/#valdef-speak-as-no-punctuation",
+            "tags": [
+              "web-features:speak-as"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -136,6 +152,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-speech-1/#valdef-speak-as-normal",
+            "tags": [
+              "web-features:speak-as"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -157,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -169,6 +189,9 @@
         "spell-out": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-speech-1/#valdef-speak-as-spell-out",
+            "tags": [
+              "web-features:speak-as"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -190,7 +213,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/speak.json b/css/properties/speak.json
index b41d5bc3fc5fc9..c289876b033cf8 100644
--- a/css/properties/speak.json
+++ b/css/properties/speak.json
@@ -4,16 +4,17 @@
       "speak": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-speech-1/#speaking-props-speak",
+          "tags": [
+            "web-features:speak"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80",
               "partial_implementation": true,
-              "notes": "The implementation is not compliant with the specification, see <a href='https://crbug.com/1283584'>bug 1283584</a>."
+              "notes": "The implementation is not compliant with the specification, see [bug 40813740](https://crbug.com/40813740)."
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": false,
               "impl_url": "https://bugzil.la/1748064"
@@ -30,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/stop-color.json b/css/properties/stop-color.json
index 3a531757262bfb..a6c59dc16bc22a 100644
--- a/css/properties/stop-color.json
+++ b/css/properties/stop-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stop-color",
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#StopColorProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/stop-opacity.json b/css/properties/stop-opacity.json
index 019218cf92c43c..07921c87e62c9e 100644
--- a/css/properties/stop-opacity.json
+++ b/css/properties/stop-opacity.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stop-opacity",
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#StopOpacityProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/stroke-color.json b/css/properties/stroke-color.json
index c2e89bc89490de..a35df644334176 100644
--- a/css/properties/stroke-color.json
+++ b/css/properties/stroke-color.json
@@ -4,6 +4,9 @@
       "stroke-color": {
         "__compat": {
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#stroke-color",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -25,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/stroke-dasharray.json b/css/properties/stroke-dasharray.json
index 2346121aab241e..f5b197134ce2d2 100644
--- a/css/properties/stroke-dasharray.json
+++ b/css/properties/stroke-dasharray.json
@@ -3,7 +3,11 @@
     "properties": {
       "stroke-dasharray": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stroke-dasharray",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#stroke-dasharray",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -11,7 +15,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -25,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,6 +41,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#valdef-stroke-dasharray-none",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -57,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/stroke-dashoffset.json b/css/properties/stroke-dashoffset.json
index 24b1f3b0ef0013..746fade74dffbf 100644
--- a/css/properties/stroke-dashoffset.json
+++ b/css/properties/stroke-dashoffset.json
@@ -3,17 +3,19 @@
     "properties": {
       "stroke-dashoffset": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stroke-dashoffset",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#stroke-dashoffset",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -27,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/stroke-linecap.json b/css/properties/stroke-linecap.json
index c687f542d61e83..29c4b99beb4b13 100644
--- a/css/properties/stroke-linecap.json
+++ b/css/properties/stroke-linecap.json
@@ -3,7 +3,11 @@
     "properties": {
       "stroke-linecap": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stroke-linecap",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#stroke-linecap",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -11,7 +15,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -25,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,6 +41,9 @@
         "butt": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#valdef-stroke-linecap-butt",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -57,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -69,6 +78,9 @@
         "round": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#valdef-stroke-linecap-round",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -90,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -102,6 +115,9 @@
         "square": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#valdef-stroke-linecap-square",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -123,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/stroke-linejoin.json b/css/properties/stroke-linejoin.json
index 50e728e0acd98a..4eda991df71e11 100644
--- a/css/properties/stroke-linejoin.json
+++ b/css/properties/stroke-linejoin.json
@@ -3,7 +3,11 @@
     "properties": {
       "stroke-linejoin": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stroke-linejoin",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#stroke-linejoin",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -11,7 +15,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -25,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,6 +41,9 @@
         "bevel": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#valdef-stroke-linejoin-bevel",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -57,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -69,6 +78,9 @@
         "miter": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#valdef-stroke-linejoin-miter",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -90,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -102,6 +115,9 @@
         "round": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#valdef-stroke-linejoin-round",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
@@ -123,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/stroke-miterlimit.json b/css/properties/stroke-miterlimit.json
index 4ebe9d38341d05..09f3a89ff2a979 100644
--- a/css/properties/stroke-miterlimit.json
+++ b/css/properties/stroke-miterlimit.json
@@ -3,17 +3,19 @@
     "properties": {
       "stroke-miterlimit": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stroke-miterlimit",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#stroke-miterlimit",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -27,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/stroke-opacity.json b/css/properties/stroke-opacity.json
index c908b627a9c8bf..cd100ebf90c25c 100644
--- a/css/properties/stroke-opacity.json
+++ b/css/properties/stroke-opacity.json
@@ -3,17 +3,19 @@
     "properties": {
       "stroke-opacity": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stroke-opacity",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#stroke-opacity",
+          "tags": [
+            "web-features:opacity-svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -27,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/stroke-width.json b/css/properties/stroke-width.json
index 9640d7886c57c2..35c23163e7d6af 100644
--- a/css/properties/stroke-width.json
+++ b/css/properties/stroke-width.json
@@ -3,17 +3,19 @@
     "properties": {
       "stroke-width": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stroke-width",
           "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#stroke-width",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -27,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/stroke.json b/css/properties/stroke.json
index 50e4cbf5f95b5b..9ccb1632d1704e 100644
--- a/css/properties/stroke.json
+++ b/css/properties/stroke.json
@@ -4,15 +4,16 @@
       "stroke": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/stroke",
-          "spec_url": "https://drafts.fxtf.org/fill-stroke-3/#stroke-shorthand",
+          "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingStrokePaint",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/tab-size.json b/css/properties/tab-size.json
index a3a59c9dd91f77..9415e48fd2fc6b 100644
--- a/css/properties/tab-size.json
+++ b/css/properties/tab-size.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/tab-size",
           "spec_url": "https://drafts.csswg.org/css-text/#tab-size-property",
+          "tags": [
+            "web-features:tab-size"
+          ],
           "support": {
             "chrome": {
               "version_added": "21",
@@ -54,7 +57,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,9 +68,12 @@
         },
         "length": {
           "__compat": {
-            "description": "<code>&lt;length&gt;</code>",
+            "description": "`&lt;length&gt;`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/length",
             "spec_url": "https://drafts.csswg.org/css-values/#lengths",
+            "tags": [
+              "web-features:tab-size"
+            ],
             "support": {
               "chrome": {
                 "version_added": "42"
@@ -90,7 +97,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "56"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/table-layout.json b/css/properties/table-layout.json
index 5690c7baa9685a..db45f9f059b829 100644
--- a/css/properties/table-layout.json
+++ b/css/properties/table-layout.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/table-layout",
           "spec_url": "https://drafts.csswg.org/css2/#width-layout",
+          "tags": [
+            "web-features:table"
+          ],
           "support": {
             "chrome": {
               "version_added": "14"
@@ -36,7 +39,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1.5"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/text-align-last.json b/css/properties/text-align-last.json
index a1702bf8e4b723..9024f7ed31e77e 100644
--- a/css/properties/text-align-last.json
+++ b/css/properties/text-align-last.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-align-last",
           "spec_url": "https://drafts.csswg.org/css-text/#text-align-last-property",
+          "tags": [
+            "web-features:text-align-last"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -28,8 +31,8 @@
               "version_added": "5.5",
               "partial_implementation": true,
               "notes": [
-                "IE only supports <code>text-align-last</code> when <code>text-align</code> is set to <code>justify</code>.",
-                "The <code>start</code> and <code>end</code> values are not supported."
+                "IE only supports `text-align-last` when `text-align` is set to `justify`.",
+                "The `start` and `end` values are not supported."
               ]
             },
             "oculus": "mirror",
@@ -40,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,6 +55,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-align-last-auto",
+            "tags": [
+              "web-features:text-align-last"
+            ],
             "support": {
               "chrome": {
                 "version_added": "47"
@@ -74,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-align.json b/css/properties/text-align.json
index 63fd1dacfc51a6..901f5dcc954dd6 100644
--- a/css/properties/text-align.json
+++ b/css/properties/text-align.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-logical/#text-align",
             "https://drafts.csswg.org/css-text/#text-align-property"
           ],
+          "tags": [
+            "web-features:text-align"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "center": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-align-center",
+            "tags": [
+              "web-features:text-align"
+            ],
             "support": {
               "chrome": [
                 {
@@ -92,7 +99,8 @@
               "webview_android": {
                 "prefix": "-webkit-",
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -104,6 +112,9 @@
         "end": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-align-end",
+            "tags": [
+              "web-features:text-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -127,7 +138,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -139,6 +151,9 @@
         "justify": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-align-justify",
+            "tags": [
+              "web-features:text-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -162,7 +177,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -174,6 +190,9 @@
         "left": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-align-left",
+            "tags": [
+              "web-features:text-align"
+            ],
             "support": {
               "chrome": [
                 {
@@ -220,7 +239,8 @@
               "webview_android": {
                 "prefix": "-webkit-",
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -232,6 +252,9 @@
         "match-parent": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-align-match-parent",
+            "tags": [
+              "web-features:text-align"
+            ],
             "support": {
               "chrome": {
                 "prefix": "-webkit-",
@@ -256,7 +279,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -268,6 +292,9 @@
         "right": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-align-right",
+            "tags": [
+              "web-features:text-align"
+            ],
             "support": {
               "chrome": [
                 {
@@ -314,7 +341,8 @@
               "webview_android": {
                 "prefix": "-webkit-",
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -326,6 +354,9 @@
         "start": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-align-start",
+            "tags": [
+              "web-features:text-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -349,7 +380,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-anchor.json b/css/properties/text-anchor.json
index 33aa6ec018f88f..a469ef67191f63 100644
--- a/css/properties/text-anchor.json
+++ b/css/properties/text-anchor.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-anchor",
           "spec_url": "https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/text-box-edge.json b/css/properties/text-box-edge.json
new file mode 100644
index 00000000000000..41a3ffae369314
--- /dev/null
+++ b/css/properties/text-box-edge.json
@@ -0,0 +1,80 @@
+{
+  "css": {
+    "properties": {
+      "text-box-edge": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-inline-3/#text-box-edge",
+          "tags": [
+            "web-features:text-box"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "133"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "18.2"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        },
+        "auto": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-inline-3/#valdef-text-box-edge-auto",
+            "tags": [
+              "web-features:text-box"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "133"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/css/properties/text-box-trim.json b/css/properties/text-box-trim.json
new file mode 100644
index 00000000000000..9973e2a39f2b30
--- /dev/null
+++ b/css/properties/text-box-trim.json
@@ -0,0 +1,191 @@
+{
+  "css": {
+    "properties": {
+      "text-box-trim": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-inline-3/#text-box-trim",
+          "tags": [
+            "web-features:text-box"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "133"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "18.2"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        },
+        "none": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-inline-3/#valdef-text-box-trim-none",
+            "tags": [
+              "web-features:text-box"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "133"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "trim-both": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-inline-3/#valdef-text-box-trim-trim-both",
+            "tags": [
+              "web-features:text-box"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "133"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "trim-end": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-inline-3/#valdef-text-box-trim-trim-end",
+            "tags": [
+              "web-features:text-box"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "133"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "trim-start": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-inline-3/#valdef-text-box-trim-trim-start",
+            "tags": [
+              "web-features:text-box"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "133"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/css/properties/text-box.json b/css/properties/text-box.json
new file mode 100644
index 00000000000000..d33fb4a5ef4d63
--- /dev/null
+++ b/css/properties/text-box.json
@@ -0,0 +1,80 @@
+{
+  "css": {
+    "properties": {
+      "text-box": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-inline-3/#text-box-shorthand",
+          "tags": [
+            "web-features:text-box"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "133"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "18.2"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        },
+        "normal": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-inline-3/#valdef-text-box-normal",
+            "tags": [
+              "web-features:text-box"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "133"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/css/properties/text-combine-upright.json b/css/properties/text-combine-upright.json
index 013c880c1040c8..41b2ce6dd5f2e6 100644
--- a/css/properties/text-combine-upright.json
+++ b/css/properties/text-combine-upright.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-combine-upright",
           "spec_url": "https://drafts.csswg.org/css-writing-modes/#text-combine-upright",
+          "tags": [
+            "web-features:text-combine-upright"
+          ],
           "support": {
             "chrome": [
               {
@@ -14,7 +17,7 @@
                 "alternative_name": "-webkit-text-combine",
                 "version_added": "9",
                 "partial_implementation": true,
-                "notes": "This property was initially named <code>-webkit-text-combine</code> according to a <a href='https://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."
+                "notes": "This property was initially named `-webkit-text-combine` according to a [2011 version of the CSS3 Writing Modes specification](https://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine), supporting the values `none` and `horizontal` without `digits`."
               }
             ],
             "chrome_android": "mirror",
@@ -48,12 +51,13 @@
                 "alternative_name": "-webkit-text-combine",
                 "version_added": "5.1",
                 "partial_implementation": true,
-                "notes": "This property was initially named <code>-webkit-text-combine</code> according to a <a href='https://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."
+                "notes": "This property was initially named `-webkit-text-combine` according to a [2011 version of the CSS3 Writing Modes specification](https://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine), supporting the values `none` and `horizontal` without `digits`."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/text-decoration-color.json b/css/properties/text-decoration-color.json
index bbcdb57d330ee7..7a6897d445cfca 100644
--- a/css/properties/text-decoration-color.json
+++ b/css/properties/text-decoration-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-decoration-color",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-decoration-color-property",
+          "tags": [
+            "web-features:text-decoration"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -39,7 +42,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/text-decoration-line.json b/css/properties/text-decoration-line.json
index 64fabdf339abf3..dceafe4368bc2c 100644
--- a/css/properties/text-decoration-line.json
+++ b/css/properties/text-decoration-line.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-decoration-line",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-decoration-line-property",
+          "tags": [
+            "web-features:text-decoration"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -39,7 +42,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -53,13 +57,13 @@
             "support": {
               "chrome": {
                 "version_added": "57",
-                "notes": "The <code>blink</code> value does not have any effect."
+                "notes": "The `blink` value does not have any effect."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
                 "version_added": "26",
-                "notes": "The <code>blink</code> value does not have any effect."
+                "notes": "The `blink` value does not have any effect."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -77,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -89,6 +94,9 @@
         "grammar-error": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-line-grammar-error",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -110,7 +118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -122,14 +131,17 @@
         "line-through": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-decoration-line-line-through",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "57"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "6"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -139,11 +151,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "8"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -155,14 +168,17 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-decoration-line-none",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "57"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "6"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -172,11 +188,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "8"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -188,14 +205,17 @@
         "overline": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-decoration-line-overline",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "57"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "6"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -205,11 +225,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "8"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -221,6 +242,9 @@
         "spelling-error": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-line-spelling-error",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -242,7 +266,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -254,14 +279,17 @@
         "underline": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-decoration-line-underline",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
-                "version_added": "≤83"
+                "version_added": "57"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "≤72"
+                "version_added": "6"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -271,11 +299,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "8"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-decoration-skip-ink.json b/css/properties/text-decoration-skip-ink.json
index 7cd11ffd3b166d..bb965d47786a9b 100644
--- a/css/properties/text-decoration-skip-ink.json
+++ b/css/properties/text-decoration-skip-ink.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-decoration-skip-ink",
           "spec_url": "https://drafts.csswg.org/css-text-decor-4/#text-decoration-skip-ink-property",
+          "tags": [
+            "web-features:text-decoration"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +45,9 @@
         "all": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-skip-ink-all",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": false,
@@ -63,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -75,6 +83,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-skip-ink-auto",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "64"
@@ -96,7 +107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -108,6 +120,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-skip-ink-none",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "64"
@@ -129,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-decoration-skip.json b/css/properties/text-decoration-skip.json
index 9bb7d811fa232c..ee65bf1ad992cf 100644
--- a/css/properties/text-decoration-skip.json
+++ b/css/properties/text-decoration-skip.json
@@ -5,11 +5,14 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-decoration-skip",
           "spec_url": "https://drafts.csswg.org/css-text-decor-4/#text-decoration-skipping",
+          "tags": [
+            "web-features:text-decoration"
+          ],
           "support": {
             "chrome": {
               "version_added": "57",
               "version_removed": "64",
-              "notes": "Only supports the deprecated <code>ink</code> value."
+              "notes": "Only supports the deprecated `ink` value."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -24,27 +27,28 @@
             "opera": {
               "version_added": "44",
               "version_removed": "50",
-              "notes": "Only supports the deprecated <code>ink</code> value."
+              "notes": "Only supports the deprecated `ink` value."
             },
             "opera_android": {
               "version_added": "43",
               "version_removed": "46",
-              "notes": "Only supports the deprecated <code>ink</code> value."
+              "notes": "Only supports the deprecated `ink` value."
             },
             "safari": [
               {
                 "version_added": "12.1",
-                "notes": "Supports only <code>none</code>, <code>auto</code>, and <code>objects</code> values."
+                "notes": "Supports only `none`, `auto`, and `objects` values."
               },
               {
                 "prefix": "-webkit-",
                 "version_added": "7",
-                "notes": "Supports only <code>none</code>, <code>auto</code>, and <code>objects</code> values."
+                "notes": "Supports only `none`, `auto`, and `objects` values."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -55,6 +59,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-skip-auto",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -76,7 +83,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -88,6 +96,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-skip-none",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -109,7 +120,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/text-decoration-style.json b/css/properties/text-decoration-style.json
index 47cae464bd6fac..318515560fd68b 100644
--- a/css/properties/text-decoration-style.json
+++ b/css/properties/text-decoration-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-decoration-style",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-decoration-style-property",
+          "tags": [
+            "web-features:text-decoration"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -39,7 +42,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,6 +53,9 @@
         },
         "wavy": {
           "__compat": {
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -70,7 +77,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-decoration-thickness.json b/css/properties/text-decoration-thickness.json
index a334e8c59cd1ad..cd2e07f4a261e9 100644
--- a/css/properties/text-decoration-thickness.json
+++ b/css/properties/text-decoration-thickness.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-decoration-thickness",
           "spec_url": "https://drafts.csswg.org/css-text-decor-4/#text-decoration-width-property",
+          "tags": [
+            "web-features:text-decoration"
+          ],
           "support": {
             "chrome": [
               {
@@ -14,7 +17,7 @@
                 "version_added": "87",
                 "version_removed": "89",
                 "partial_implementation": true,
-                "notes": "The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>bug 1154537</a>."
+                "notes": "The `text-decoration-thickness` property does not work unless either `text-underline-offset` is set to something other than `auto` or `text-decoration-color` is set to something other than `currentColor`. See [bug 40734940](https://crbug.com/40734940)."
               }
             ],
             "chrome_android": "mirror",
@@ -34,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,6 +49,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-thickness-auto",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
         "from-font": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-thickness-from-font",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -99,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -111,6 +123,9 @@
         "percentage": {
           "__compat": {
             "description": "percentage values",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -132,7 +147,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-decoration.json b/css/properties/text-decoration.json
index e3c33dfb8eac81..bd70ad0e0da23b 100644
--- a/css/properties/text-decoration.json
+++ b/css/properties/text-decoration.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-decoration",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-decoration-property",
+          "tags": [
+            "web-features:text-decoration"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,7 +46,10 @@
         },
         "includes_color-and-style": {
           "__compat": {
-            "description": "<code>text-decoration-color</code> and <code>text-decoration-style</code> included in shorthand",
+            "description": "`text-decoration-color` and `text-decoration-style` included in shorthand",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,7 +84,10 @@
         },
         "includes_thickness": {
           "__compat": {
-            "description": "<code>text-decoration-thickness</code> included in shorthand",
+            "description": "`text-decoration-thickness` included in shorthand",
+            "tags": [
+              "web-features:text-decoration"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -98,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-emphasis-color.json b/css/properties/text-emphasis-color.json
index d1c024fd1005db..d9bfaffdb4619a 100644
--- a/css/properties/text-emphasis-color.json
+++ b/css/properties/text-emphasis-color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-emphasis-color",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-emphasis-color-property",
+          "tags": [
+            "web-features:text-emphasis"
+          ],
           "support": {
             "chrome": [
               {
@@ -38,7 +41,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/text-emphasis-position.json b/css/properties/text-emphasis-position.json
index 2997fbd727fea5..3938d8e9615b11 100644
--- a/css/properties/text-emphasis-position.json
+++ b/css/properties/text-emphasis-position.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-emphasis-position",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-emphasis-position-property",
+          "tags": [
+            "web-features:text-emphasis"
+          ],
           "support": {
             "chrome": [
               {
@@ -38,7 +41,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,8 +50,47 @@
             "deprecated": false
           }
         },
+        "auto": {
+          "__compat": {
+            "tags": [
+              "web-features:text-emphasis"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "132"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": false,
+              "deprecated": false
+            }
+          }
+        },
         "left": {
           "__compat": {
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "62"
@@ -69,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +124,9 @@
         },
         "over": {
           "__compat": {
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -101,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,6 +160,9 @@
         },
         "right": {
           "__compat": {
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "62"
@@ -133,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,6 +196,9 @@
         },
         "under": {
           "__compat": {
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -165,7 +220,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-emphasis-style.json b/css/properties/text-emphasis-style.json
index eaa57106b961be..a4c48e4ff40f5d 100644
--- a/css/properties/text-emphasis-style.json
+++ b/css/properties/text-emphasis-style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-emphasis-style",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-emphasis-style-property",
+          "tags": [
+            "web-features:text-emphasis"
+          ],
           "support": {
             "chrome": [
               {
@@ -38,7 +41,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,6 +53,9 @@
         "circle": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-emphasis-style-circle",
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -70,7 +77,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,6 +90,9 @@
         "dot": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-emphasis-style-dot",
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -103,7 +114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -115,6 +127,9 @@
         "double-circle": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-emphasis-style-double-circle",
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -136,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -148,6 +164,9 @@
         "filled": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-emphasis-style-filled",
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -169,7 +188,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -181,6 +201,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-emphasis-style-none",
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -202,7 +225,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -214,6 +238,9 @@
         "sesame": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-emphasis-style-sesame",
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -235,7 +262,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -247,6 +275,9 @@
         "triangle": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor/#valdef-text-emphasis-style-triangle",
+            "tags": [
+              "web-features:text-emphasis"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -268,7 +299,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-emphasis.json b/css/properties/text-emphasis.json
index ac0364e7263ced..486c8e9c652c90 100644
--- a/css/properties/text-emphasis.json
+++ b/css/properties/text-emphasis.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-emphasis",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-emphasis-property",
+          "tags": [
+            "web-features:text-emphasis"
+          ],
           "support": {
             "chrome": [
               {
@@ -38,7 +41,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/text-indent.json b/css/properties/text-indent.json
index 3e3f6e947919d6..a21d98b0a6bcf7 100644
--- a/css/properties/text-indent.json
+++ b/css/properties/text-indent.json
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +45,9 @@
         "each-line": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-indent-each-line",
+            "tags": [
+              "web-features:text-indent-each-line"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -65,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,6 +82,9 @@
         "hanging": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-indent-hanging",
+            "tags": [
+              "web-features:text-indent-hanging"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -98,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-justify.json b/css/properties/text-justify.json
index 532b7d04b7667a..0e646619ddba22 100644
--- a/css/properties/text-justify.json
+++ b/css/properties/text-justify.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-justify",
           "spec_url": "https://drafts.csswg.org/css-text/#text-justify-property",
+          "tags": [
+            "web-features:text-justify"
+          ],
           "support": {
             "chrome": {
               "version_added": "32",
@@ -15,7 +18,7 @@
                   "value_to_set": "true"
                 }
               ],
-              "notes": "<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."
+              "notes": "`inter-word` and `distribute` (deprecated) values are supported, but `distribute` behavior is buggy."
             },
             "chrome_android": "mirror",
             "edge": [
@@ -28,12 +31,12 @@
                     "value_to_set": "true"
                   }
                 ],
-                "notes": "<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."
+                "notes": "`inter-word` and `distribute` (deprecated) values are supported, but `distribute` behavior is buggy."
               },
               {
                 "version_added": "12",
                 "version_removed": "79",
-                "notes": "Standard values <code>inter-character</code> and <code>none</code> are supported. The deprecated <code>distribute</code> value is also supported."
+                "notes": "Standard values `inter-character` and `none` are supported. The deprecated `distribute` value is also supported."
               }
             ],
             "firefox": {
@@ -42,7 +45,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "11",
-              "notes": "Standard values <code>inter-character</code> and <code>none</code> are supported. The deprecated <code>distribute</code> value is also supported."
+              "notes": "Standard values `inter-character` and `none` are supported. The deprecated `distribute` value is also supported."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -53,7 +56,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,6 +68,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-justify-auto",
+            "tags": [
+              "web-features:text-justify"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -85,7 +92,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -97,6 +105,9 @@
         "inter-character": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-justify-inter-character",
+            "tags": [
+              "web-features:text-justify"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -124,7 +135,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -136,6 +148,9 @@
         "inter-word": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-justify-inter-word",
+            "tags": [
+              "web-features:text-justify"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -157,7 +172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -169,6 +185,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-justify-none",
+            "tags": [
+              "web-features:text-justify"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -190,7 +209,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/text-orientation.json b/css/properties/text-orientation.json
index ef9535415c3b3c..615b6a8bfd10d1 100644
--- a/css/properties/text-orientation.json
+++ b/css/properties/text-orientation.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-orientation",
           "spec_url": "https://drafts.csswg.org/css-writing-modes/#text-orientation",
+          "tags": [
+            "web-features:text-orientation"
+          ],
           "support": {
             "chrome": [
               {
@@ -38,7 +41,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,6 +53,9 @@
         "mixed": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-text-orientation-mixed",
+            "tags": [
+              "web-features:text-orientation"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤83"
@@ -70,7 +77,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,6 +90,9 @@
         "sideways": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-text-orientation-sideways",
+            "tags": [
+              "web-features:text-orientation"
+            ],
             "support": {
               "chrome": [
                 {
@@ -115,7 +126,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -127,6 +139,9 @@
         "upright": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-text-orientation-upright",
+            "tags": [
+              "web-features:text-orientation"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤83"
@@ -148,7 +163,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-overflow.json b/css/properties/text-overflow.json
index 5bd74f0c1e056e..6a62e9a2cd504c 100644
--- a/css/properties/text-overflow.json
+++ b/css/properties/text-overflow.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-overflow",
           "spec_url": "https://drafts.csswg.org/css-overflow/#text-overflow",
+          "tags": [
+            "web-features:text-overflow"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "7",
-              "notes": "Until Firefox 10, handling of <code>text-overflow</code> on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as <code>text-overflow: ellipsis;</code>), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction."
+              "notes": "Until Firefox 10, handling of `text-overflow` on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as `text-overflow: ellipsis;`), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction."
             },
             "firefox_android": "mirror",
             "ie": [
@@ -53,7 +56,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,6 +68,9 @@
         "clip": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#overflow-clip",
+            "tags": [
+              "web-features:text-overflow"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -87,7 +94,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -99,6 +107,9 @@
         "ellipsis": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-overflow/#overflow-ellipsis",
+            "tags": [
+              "web-features:text-overflow"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -122,7 +133,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -134,6 +146,9 @@
         "string": {
           "__compat": {
             "description": "&lt;string&gt;",
+            "tags": [
+              "web-features:custom-ellipses"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -155,7 +170,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -167,6 +183,9 @@
         "two_value_syntax": {
           "__compat": {
             "description": "Two-value syntax",
+            "tags": [
+              "web-features:text-overflow"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -188,7 +207,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-rendering.json b/css/properties/text-rendering.json
index c790a1354be79c..58bb0e44713bca 100644
--- a/css/properties/text-rendering.json
+++ b/css/properties/text-rendering.json
@@ -5,12 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-rendering",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#TextRenderingProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "4",
               "notes": [
                 "This property is only supported on Windows and Linux.",
-                "Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See <a href='https://crbug.com/114719'>bug 114719</a>, <a href='https://crbug.com/51973'>bug 51973</a>, <a href='https://crbug.com/55458'>bug 55458</a>, <a href='https://crbug.com/149548'>bug 149548</a>."
+                "Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See [bug 40156511](https://crbug.com/40156511), [bug 40430936](https://crbug.com/40430936), [bug 40444347](https://crbug.com/40444347), [bug 40286561](https://crbug.com/40286561)."
               ]
             },
             "chrome_android": "mirror",
@@ -19,7 +22,7 @@
               "version_added": "1",
               "notes": [
                 "This property is only supported on Windows and Linux.",
-                "The <code>optimizeSpeed</code> option has no effect on Firefox 4 because the standard code for text rendering is already fast and there is not a faster code path at this time. See <a href='https://bugzil.la/595688'>bug 595688</a> for details."
+                "The `optimizeSpeed` option has no effect on Firefox 4 because the standard code for text rendering is already fast and there is not a faster code path at this time. See [bug 595688](https://bugzil.la/595688) for details."
               ]
             },
             "firefox_android": {
@@ -45,8 +48,9 @@
             },
             "webview_android": {
               "version_added": "3",
-              "notes": "From version 3 to 4.3, there is a serious bug where <code>text-rendering: optimizeLegibility</code> causes custom web fonts to not render. This was fixed in version 4.4."
-            }
+              "notes": "From version 3 to 4.3, there is a serious bug where `text-rendering: optimizeLegibility` causes custom web fonts to not render. This was fixed in version 4.4."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -59,17 +63,17 @@
             "support": {
               "chrome": {
                 "version_added": "4",
-                "notes": "Chrome treats <code>auto</code> as <code>optimizeSpeed</code>."
+                "notes": "Chrome treats `auto` as `optimizeSpeed`."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
                 "version_added": "1",
-                "notes": "If the font size is 20 pixels or higher, Firefox treats <code>auto</code> as <code>optimizeLegibility</code>. For smaller text, Firefox treats <code>auto</code> as <code>optimizeSpeed</code>. The 20-pixel threshold can be changed with the <code>browser.display.auto_quality_min_font_size</code> preference."
+                "notes": "If the font size is 20 pixels or higher, Firefox treats `auto` as `optimizeLegibility`. For smaller text, Firefox treats `auto` as `optimizeSpeed`. The 20-pixel threshold can be changed with the `browser.display.auto_quality_min_font_size` preference."
               },
               "firefox_android": {
                 "version_added": "46",
-                "notes": "If the font size is 20 pixels or higher, Firefox treats <code>auto</code> as <code>optimizeLegibility</code>. For smaller text, Firefox treats <code>auto</code> as <code>optimizeSpeed</code>. The 20-pixel threshold can be changed with the <code>browser.display.auto_quality_min_font_size</code> preference."
+                "notes": "If the font size is 20 pixels or higher, Firefox treats `auto` as `optimizeLegibility`. For smaller text, Firefox treats `auto` as `optimizeSpeed`. The 20-pixel threshold can be changed with the `browser.display.auto_quality_min_font_size` preference."
               },
               "ie": {
                 "version_added": false
@@ -79,15 +83,16 @@
               "opera_android": "mirror",
               "safari": {
                 "version_added": "5",
-                "notes": "Safari treats <code>auto</code> as <code>optimizeSpeed</code>. See <a href='https://webkit.org/b/41363'>bug 41363</a>."
+                "notes": "Safari treats `auto` as `optimizeSpeed`. See [bug 41363](https://webkit.org/b/41363)."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": false,
+              "standard_track": true,
               "deprecated": false
             }
           }
@@ -103,11 +108,11 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "1",
-                "notes": "Firefox treats <code>geometricPrecision</code> the same as <code>optimizeLegibility</code>."
+                "notes": "Firefox treats `geometricPrecision` the same as `optimizeLegibility`."
               },
               "firefox_android": {
                 "version_added": "46",
-                "notes": "Firefox treats <code>geometricPrecision</code> the same as <code>optimizeLegibility</code>."
+                "notes": "Firefox treats `geometricPrecision` the same as `optimizeLegibility`."
               },
               "ie": {
                 "version_added": false
@@ -120,11 +125,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": false,
+              "standard_track": true,
               "deprecated": false
             }
           }
diff --git a/css/properties/text-shadow.json b/css/properties/text-shadow.json
index 7e2c4ed9924afc..8e924b83332421 100644
--- a/css/properties/text-shadow.json
+++ b/css/properties/text-shadow.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-shadow",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-shadow-property",
+          "tags": [
+            "web-features:text-shadow"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -16,10 +19,10 @@
             "firefox": {
               "version_added": "3.5",
               "notes": [
-                "Firefox versions before 57 have a bug whereby <a href='https://developer.mozilla.org/docs/Web/CSS/transition'><code>transition</code></a>s will not work when transitioning from a <code>text-shadow</code> with a color specified to a <code>text-shadow</code> without a color specified (<a href='https://bugzil.la/726550'>bug 726550</a>).",
+                "Firefox versions before 57 have a bug whereby [`transition`](https://developer.mozilla.org/docs/Web/CSS/transition)s will not work when transitioning from a `text-shadow` with a color specified to a `text-shadow` without a color specified ([bug 726550](https://bugzil.la/726550)).",
                 "From Firefox 4, the blur radius is capped at 300 for performance reasons.",
                 "Firefox theoretically supports infinite text-shadows (don't try it).",
-                "If the <code>&lt;color&gt;</code> value is unspecified, then Firefox uses the value of the element's <a href='https://developer.mozilla.org/docs/Web/CSS/color'><code>color</code></a> property."
+                "If the `&lt;color&gt;` value is unspecified, then Firefox uses the value of the element's [`color`](https://developer.mozilla.org/docs/Web/CSS/color) property."
               ]
             },
             "firefox_android": "mirror",
@@ -52,7 +55,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/text-size-adjust.json b/css/properties/text-size-adjust.json
index 41996379198bfd..86a5714af9cc47 100644
--- a/css/properties/text-size-adjust.json
+++ b/css/properties/text-size-adjust.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-size-adjust",
           "spec_url": "https://drafts.csswg.org/css-size-adjust/#adjustment-control",
+          "tags": [
+            "web-features:text-size-adjust"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -47,7 +50,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -58,6 +62,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-size-adjust/#valdef-text-size-adjust-auto",
+            "tags": [
+              "web-features:text-size-adjust"
+            ],
             "support": {
               "chrome": {
                 "version_added": "54"
@@ -79,7 +86,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -91,6 +99,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-size-adjust/#valdef-text-size-adjust-none",
+            "tags": [
+              "web-features:text-size-adjust"
+            ],
             "support": {
               "chrome": {
                 "version_added": "54"
@@ -112,7 +123,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -123,8 +135,11 @@
         },
         "percentages": {
           "__compat": {
-            "description": "<code>&lt;percentage&gt;</code>",
+            "description": "`&lt;percentage&gt;`",
             "spec_url": "https://drafts.csswg.org/css-size-adjust/#valdef-text-size-adjust-percentage-0",
+            "tags": [
+              "web-features:text-size-adjust"
+            ],
             "support": {
               "chrome": {
                 "version_added": "54"
@@ -148,7 +163,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/text-spacing-trim.json b/css/properties/text-spacing-trim.json
index dc5516594cdc98..a6614df8e77490 100644
--- a/css/properties/text-spacing-trim.json
+++ b/css/properties/text-spacing-trim.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -40,6 +41,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-spacing-trim-normal",
+            "tags": [
+              "web-features:text-spacing-trim"
+            ],
             "support": {
               "chrome": {
                 "version_added": "123"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -73,6 +78,9 @@
         "space-all": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-spacing-trim-space-all",
+            "tags": [
+              "web-features:text-spacing-trim"
+            ],
             "support": {
               "chrome": {
                 "version_added": "123"
@@ -94,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -106,6 +115,9 @@
         "space-first": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-spacing-trim-space-first",
+            "tags": [
+              "web-features:text-spacing-trim"
+            ],
             "support": {
               "chrome": {
                 "version_added": "123"
@@ -127,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -139,6 +152,9 @@
         "trim-start": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-spacing-trim-trim-start",
+            "tags": [
+              "web-features:text-spacing-trim"
+            ],
             "support": {
               "chrome": {
                 "version_added": "123"
@@ -160,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/text-transform.json b/css/properties/text-transform.json
index 99f24cc6ca89ac..ec941b8765f7d9 100644
--- a/css/properties/text-transform.json
+++ b/css/properties/text-transform.json
@@ -4,11 +4,14 @@
       "text-transform": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-transform",
-          "spec_url": "https://drafts.csswg.org/css-text/#text-transform",
+          "spec_url": "https://drafts.csswg.org/css-text-4/#text-transform",
+          "tags": [
+            "web-features:text-transform"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "The <code>text-transform</code> property does not work for <code>::first-line</code> pseudo-elements (nor for the one-colon syntax). See <a href='https://crbug.com/129669'>bug 129669</a>."
+              "notes": "The `text-transform` property does not work for `::first-line` pseudo-elements (nor for the one-colon syntax). See [bug 40214861](https://crbug.com/40214861)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -24,18 +27,19 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "7",
-              "notes": "Since Opera 15, the <code>text-transform</code> property does not work for <code>::first-line</code> pseudo-elements (nor for the one-colon syntax). See <a href='https://crbug.com/129669'>bug 129669</a>."
+              "notes": "Since Opera 15, the `text-transform` property does not work for `::first-line` pseudo-elements (nor for the one-colon syntax). See [bug 40214861](https://crbug.com/40214861)."
             },
             "opera_android": {
               "version_added": "11"
             },
             "safari": {
               "version_added": "1",
-              "notes": "The <code>text-transform</code> property does not work for <code>::first-line</code> pseudo-elements (also not for the old one-colon syntax). See <a href='https://webkit.org/b/3409'>bug 3409</a>."
+              "notes": "The `text-transform` property does not work for `::first-line` pseudo-elements (also not for the old one-colon syntax). See [bug 3409](https://webkit.org/b/3409)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,10 @@
         },
         "capitalize": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-transform-capitalize",
+            "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-transform-capitalize",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -56,7 +63,7 @@
               },
               "firefox": {
                 "version_added": "1",
-                "notes": "Before Firefox 14, some punctuation characters could interfere with correct capitalization. See <a href='https://bugzil.la/731536'>bug 731536</a>."
+                "notes": "Before Firefox 14, some punctuation characters could interfere with correct capitalization. See [bug 731536](https://bugzil.la/731536)."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -74,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -85,7 +93,10 @@
         },
         "dutch_ij_digraph": {
           "__compat": {
-            "description": "Dutch <code>IJ</code> digraph",
+            "description": "Dutch `IJ` digraph",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -107,7 +118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -118,7 +130,10 @@
         },
         "full-size-kana": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-transform-full-size-kana",
+            "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-transform-full-size-kana",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -140,7 +155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -151,7 +167,10 @@
         },
         "full-width": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-transform-full-width",
+            "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-transform-full-width",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -173,7 +192,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -185,6 +205,9 @@
         "greek_accented_characters": {
           "__compat": {
             "description": "Greek accented letters",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": "34"
@@ -208,7 +231,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -219,7 +243,10 @@
         },
         "lowercase": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-transform-lowercase",
+            "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-transform-lowercase",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -243,7 +270,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -254,7 +282,10 @@
         },
         "lowercase_sigma": {
           "__compat": {
-            "description": "<code>Σ</code> → <code>σ</code> or word-final <code>ς</code>",
+            "description": "`Σ` → `σ` or word-final `ς`",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": "30"
@@ -278,7 +309,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -289,7 +321,10 @@
         },
         "math-auto": {
           "__compat": {
-            "spec_url": "https://w3c.github.io/mathml-core/#new-text-transform-values",
+            "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-transform-math-auto",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -311,7 +346,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -322,7 +358,10 @@
         },
         "none": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-transform-none",
+            "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-transform-none",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -346,7 +385,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -357,7 +397,10 @@
         },
         "turkic_is": {
           "__compat": {
-            "description": "<code>i</code> → <code>İ</code> and <code>ı</code> → <code>I</code>",
+            "description": "`i` → `İ` and `ı` → `I`",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": "31"
@@ -381,7 +424,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -392,7 +436,10 @@
         },
         "uppercase": {
           "__compat": {
-            "spec_url": "https://drafts.csswg.org/css-text/#valdef-text-transform-uppercase",
+            "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-transform-uppercase",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -416,7 +463,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -427,7 +475,10 @@
         },
         "uppercase_eszett": {
           "__compat": {
-            "description": "<code>ß</code> → <code>SS</code>",
+            "description": "`ß` → `SS`",
+            "tags": [
+              "web-features:text-transform"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -455,7 +506,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-underline-offset.json b/css/properties/text-underline-offset.json
index 5056f59fe9b557..6237be938b7fa2 100644
--- a/css/properties/text-underline-offset.json
+++ b/css/properties/text-underline-offset.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-underline-offset",
           "spec_url": "https://drafts.csswg.org/css-text-decor-4/#underline-offset",
+          "tags": [
+            "web-features:text-underline-position"
+          ],
           "support": {
             "chrome": {
               "version_added": "87"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-underline-offset-auto",
+            "tags": [
+              "web-features:text-underline-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -71,6 +79,9 @@
           "__compat": {
             "description": "percentage values",
             "spec_url": "https://drafts.csswg.org/css-text-decor-4/#valdef-text-underline-offset-percentage",
+            "tags": [
+              "web-features:text-underline-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -88,11 +99,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-underline-position.json b/css/properties/text-underline-position.json
index 848a12d95dde09..e70b6cd2681fd7 100644
--- a/css/properties/text-underline-position.json
+++ b/css/properties/text-underline-position.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-underline-position",
           "spec_url": "https://drafts.csswg.org/css-text-decor/#text-underline-position-property",
+          "tags": [
+            "web-features:text-underline-position"
+          ],
           "support": {
             "chrome": {
               "version_added": "33"
@@ -34,7 +37,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         },
         "from-font": {
           "__compat": {
+            "tags": [
+              "web-features:text-underline-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": "87"
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +84,9 @@
         },
         "left": {
           "__compat": {
+            "tags": [
+              "web-features:text-underline-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": "71"
@@ -93,11 +104,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -108,6 +120,9 @@
         },
         "right": {
           "__compat": {
+            "tags": [
+              "web-features:text-underline-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": "71"
@@ -125,11 +140,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,6 +156,9 @@
         },
         "under": {
           "__compat": {
+            "tags": [
+              "web-features:text-underline-position"
+            ],
             "support": {
               "chrome": {
                 "version_added": "33"
@@ -161,7 +180,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-wrap-mode.json b/css/properties/text-wrap-mode.json
index 7afed3f031493d..aa656de0005d8a 100644
--- a/css/properties/text-wrap-mode.json
+++ b/css/properties/text-wrap-mode.json
@@ -5,9 +5,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-wrap-mode",
           "spec_url": "https://drafts.csswg.org/css-text-4/#text-wrap-mode",
+          "tags": [
+            "web-features:text-wrap-mode"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "130"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,9 +40,12 @@
         },
         "nowrap": {
           "__compat": {
+            "tags": [
+              "web-features:text-wrap-mode"
+            ],
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "130"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -57,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -68,9 +76,12 @@
         },
         "wrap": {
           "__compat": {
+            "tags": [
+              "web-features:text-wrap-mode"
+            ],
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "130"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -89,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-wrap-style.json b/css/properties/text-wrap-style.json
index 4544d78fe5420a..b1d5034e12dba0 100644
--- a/css/properties/text-wrap-style.json
+++ b/css/properties/text-wrap-style.json
@@ -5,9 +5,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-wrap-style",
           "spec_url": "https://drafts.csswg.org/css-text-4/#text-wrap-style",
+          "tags": [
+            "web-features:text-wrap-style"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "130"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,9 +41,12 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-wrap-style-auto",
+            "tags": [
+              "web-features:text-wrap-style"
+            ],
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "130"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,9 +78,12 @@
         "balance": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-wrap-style-balance",
+            "tags": [
+              "web-features:text-wrap-style"
+            ],
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "130"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,12 +112,54 @@
             }
           }
         },
+        "pretty": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-wrap-style-pretty",
+            "tags": [
+              "web-features:text-wrap-style"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "130"
+              },
+              "chrome_android": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "stable": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-wrap-style-stable",
+            "tags": [
+              "web-features:text-wrap-style"
+            ],
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "130"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -124,7 +178,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/text-wrap.json b/css/properties/text-wrap.json
index 24a7c5be68232d..b63f67c7d56108 100644
--- a/css/properties/text-wrap.json
+++ b/css/properties/text-wrap.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-wrap",
           "spec_url": "https://drafts.csswg.org/css-text-4/#text-wrap",
+          "tags": [
+            "web-features:text-wrap"
+          ],
           "support": {
             "chrome": {
               "version_added": "114"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -62,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -99,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,7 +142,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -149,9 +156,12 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-wrap#stable",
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-wrap-style-stable",
+            "tags": [
+              "web-features:text-wrap-stable"
+            ],
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "130"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -170,7 +180,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -184,7 +195,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/text-wrap#wrap",
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-text-wrap-mode-wrap",
             "tags": [
-              "web-features:text-wrap-nowrap"
+              "web-features:text-wrap"
             ],
             "support": {
               "chrome": {
@@ -207,7 +218,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/timeline-scope.json b/css/properties/timeline-scope.json
index 06d6181c194c7f..fd4055a9da09ce 100644
--- a/css/properties/timeline-scope.json
+++ b/css/properties/timeline-scope.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -106,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/top.json b/css/properties/top.json
index 4ac9a11f53507c..606407c35ffb39 100644
--- a/css/properties/top.json
+++ b/css/properties/top.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/top",
           "spec_url": "https://drafts.csswg.org/css-position/#insets",
+          "tags": [
+            "web-features:physical-properties"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -19,7 +22,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "5",
-              "notes": "In Internet Explorer versions before 7, when both <code>top</code> and <code>bottom</code> are specified, the element position is overconstrained and the <code>top</code> property has precedence; the computed value of <code>bottom</code> is set to <code>-top</code>, while its specified value is ignored."
+              "notes": "In Internet Explorer versions before 7, when both `top` and `bottom` are specified, the element position is overconstrained and the `top` property has precedence; the computed value of `bottom` is set to `-top`, while its specified value is ignored."
             },
             "oculus": "mirror",
             "opera": {
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,7 +45,7 @@
         },
         "anchor": {
           "__compat": {
-            "description": "<code>anchor()</code>",
+            "description": "`anchor()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
             "tags": [
               "web-features:anchor-positioning"
@@ -68,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -80,6 +85,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-position/#valdef-top-auto",
+            "tags": [
+              "web-features:physical-properties"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/touch-action.json b/css/properties/touch-action.json
index a71f66fd568103..c98fe3781e9d29 100644
--- a/css/properties/touch-action.json
+++ b/css/properties/touch-action.json
@@ -8,6 +8,9 @@
             "https://compat.spec.whatwg.org/#touch-action",
             "https://w3c.github.io/pointerevents/#the-touch-action-css-property"
           ],
+          "tags": [
+            "web-features:touch-action"
+          ],
           "support": {
             "chrome": {
               "version_added": "36"
@@ -42,7 +45,8 @@
               "version_added": "9.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -52,6 +56,9 @@
         },
         "manipulation": {
           "__compat": {
+            "tags": [
+              "web-features:touch-action"
+            ],
             "support": {
               "chrome": {
                 "version_added": "36"
@@ -86,7 +93,8 @@
                 "version_added": "9.3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -97,6 +105,9 @@
         },
         "none": {
           "__compat": {
+            "tags": [
+              "web-features:touch-action"
+            ],
             "support": {
               "chrome": {
                 "version_added": "36"
@@ -129,7 +140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,6 +152,9 @@
         },
         "pan-down": {
           "__compat": {
+            "tags": [
+              "web-features:touch-action"
+            ],
             "support": {
               "chrome": {
                 "version_added": "55"
@@ -162,7 +177,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -173,6 +189,9 @@
         },
         "pan-left": {
           "__compat": {
+            "tags": [
+              "web-features:touch-action"
+            ],
             "support": {
               "chrome": {
                 "version_added": "55"
@@ -195,7 +214,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -206,6 +226,9 @@
         },
         "pan-right": {
           "__compat": {
+            "tags": [
+              "web-features:touch-action"
+            ],
             "support": {
               "chrome": {
                 "version_added": "55"
@@ -228,7 +251,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -239,6 +263,9 @@
         },
         "pan-up": {
           "__compat": {
+            "tags": [
+              "web-features:touch-action"
+            ],
             "support": {
               "chrome": {
                 "version_added": "55"
@@ -261,7 +288,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -272,6 +300,9 @@
         },
         "pan-x": {
           "__compat": {
+            "tags": [
+              "web-features:touch-action"
+            ],
             "support": {
               "chrome": {
                 "version_added": "36"
@@ -304,7 +335,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -315,6 +347,9 @@
         },
         "pan-y": {
           "__compat": {
+            "tags": [
+              "web-features:touch-action"
+            ],
             "support": {
               "chrome": {
                 "version_added": "36"
@@ -347,7 +382,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -358,6 +394,9 @@
         },
         "pinch-zoom": {
           "__compat": {
+            "tags": [
+              "web-features:touch-action"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56"
@@ -388,7 +427,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/transform-box.json b/css/properties/transform-box.json
index c86cf6e8413d74..37f838614e4c93 100644
--- a/css/properties/transform-box.json
+++ b/css/properties/transform-box.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-box",
           "spec_url": "https://drafts.csswg.org/css-transforms/#transform-box",
+          "tags": [
+            "web-features:transform-box"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "border-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-box-border-box",
+            "tags": [
+              "web-features:transform-box"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "content-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-box-content-box",
+            "tags": [
+              "web-features:transform-box"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +115,9 @@
         "fill-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-box-fill-box",
+            "tags": [
+              "web-features:transform-box"
+            ],
             "support": {
               "chrome": {
                 "version_added": "64"
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,6 +152,9 @@
         "stroke-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-box-stroke-box",
+            "tags": [
+              "web-features:transform-box"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -157,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -169,6 +189,9 @@
         "view-box": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-box-view-box",
+            "tags": [
+              "web-features:transform-box"
+            ],
             "support": {
               "chrome": {
                 "version_added": "64"
@@ -190,7 +213,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/transform-origin.json b/css/properties/transform-origin.json
index 2ca34eff6931b9..fde837188d3242 100644
--- a/css/properties/transform-origin.json
+++ b/css/properties/transform-origin.json
@@ -38,8 +38,7 @@
               },
               {
                 "prefix": "-moz-",
-                "version_added": "3.5",
-                "version_removed": "preview"
+                "version_added": "3.5"
               }
             ],
             "firefox_android": "mirror",
@@ -100,7 +99,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -111,6 +111,9 @@
         "bottom": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-origin-bottom",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -134,7 +137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -146,6 +150,9 @@
         "center": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-origin-center",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -169,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -181,6 +189,9 @@
         "left": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-origin-left",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -204,7 +215,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -216,6 +228,9 @@
         "right": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-origin-right",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -239,7 +254,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -251,6 +267,9 @@
         "svg_elements": {
           "__compat": {
             "description": "On SVG elements",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -261,7 +280,7 @@
               },
               "firefox": {
                 "version_added": "43",
-                "notes": "Keywords and percentages refer to the canvas instead of the object itself. See <a href='https://bugzil.la/1209061'>bug 1209061</a>."
+                "notes": "Keywords and percentages refer to the canvas instead of the object itself. See [bug 1209061](https://bugzil.la/1209061)."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -272,11 +291,12 @@
               "opera_android": "mirror",
               "safari": {
                 "version_added": "6",
-                "notes": "Only supported for transformations applied using the CSS <code>transform</code> property (e.g. <code>.className { transform: rotate(45deg); transform-origin: center; }</code>). It has no effect on transformations applied using the <code>transform</code> SVG attribute (e.g. <code>&lt;rect style=&quot;transform-origin: center;&quot; transform=&quot;rotate(45)&quot; /&gt;</code>)."
+                "notes": "Only supported for transformations applied using the CSS `transform` property (e.g. `.className { transform: rotate(45deg); transform-origin: center; }`). It has no effect on transformations applied using the `transform` SVG attribute (e.g. `&lt;rect style=&quot;transform-origin: center;&quot; transform=&quot;rotate(45)&quot; /&gt;`)."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -288,6 +308,9 @@
         "three_value_syntax": {
           "__compat": {
             "description": "Three-value syntax",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "12"
@@ -313,7 +336,8 @@
                 "version_added": "3.2"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -325,6 +349,9 @@
         "top": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms/#valdef-transform-origin-top",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -348,7 +375,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/transform-style.json b/css/properties/transform-style.json
index 01fdbe366611d5..6e560e82cfa3d1 100644
--- a/css/properties/transform-style.json
+++ b/css/properties/transform-style.json
@@ -38,8 +38,7 @@
               },
               {
                 "prefix": "-moz-",
-                "version_added": "10",
-                "version_removed": "preview"
+                "version_added": "10"
               }
             ],
             "firefox_android": "mirror",
@@ -76,7 +75,8 @@
                 "prefix": "-webkit-",
                 "version_added": "3"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/transform.json b/css/properties/transform.json
index a98d7346b6a17b..950172eb6a10ee 100644
--- a/css/properties/transform.json
+++ b/css/properties/transform.json
@@ -41,15 +41,14 @@
               },
               {
                 "prefix": "-moz-",
-                "version_added": "≤40",
-                "version_removed": "preview"
+                "version_added": "3.5"
               }
             ],
             "firefox_android": "mirror",
             "ie": [
               {
                 "version_added": "10",
-                "notes": "Internet Explorer does not support the global values <code>initial</code> and <code>unset</code>."
+                "notes": "Internet Explorer does not support the global values `initial` and `unset`."
               },
               {
                 "prefix": "-webkit-",
@@ -58,7 +57,7 @@
               {
                 "prefix": "-ms-",
                 "version_added": "9",
-                "notes": "Internet Explorer 5.5 or later supports a proprietary <a href='https://msdn.microsoft.com/en-us/library/ms533014(VS.85,loband).aspx'>Matrix Filter</a> which can be used to achieve a similar effect."
+                "notes": "Internet Explorer 5.5 or later supports a proprietary [Matrix Filter](https://msdn.microsoft.com/en-us/library/ms533014(VS.85,loband).aspx) which can be used to achieve a similar effect."
               }
             ],
             "oculus": "mirror",
@@ -124,9 +123,10 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "2",
-                "notes": "Android 2.3 has a bug where input forms will \"jump\" when typing, if any container element has a <code>-webkit-transform</code>."
+                "notes": "Android 2.3 has a bug where input forms will \"jump\" when typing, if any container element has a `-webkit-transform`."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,7 +163,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/transition-behavior.json b/css/properties/transition-behavior.json
index b8f8fde61cd11e..b17845408e83a2 100644
--- a/css/properties/transition-behavior.json
+++ b/css/properties/transition-behavior.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/transition-delay.json b/css/properties/transition-delay.json
index 9001a2a8f86b54..c065b7bdfe2ca4 100644
--- a/css/properties/transition-delay.json
+++ b/css/properties/transition-delay.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transition-delay",
           "spec_url": "https://drafts.csswg.org/css-transitions/#transition-delay-property",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": [
               {
@@ -36,7 +39,7 @@
               {
                 "prefix": "-moz-",
                 "version_added": "4",
-                "version_removed": "preview"
+                "version_removed": "126"
               }
             ],
             "firefox_android": "mirror",
@@ -105,7 +108,8 @@
                 "prefix": "-webkit-",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/transition-duration.json b/css/properties/transition-duration.json
index 45aab504643843..d13aa24213d2d1 100644
--- a/css/properties/transition-duration.json
+++ b/css/properties/transition-duration.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transition-duration",
           "spec_url": "https://drafts.csswg.org/css-transitions/#transition-duration-property",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": [
               {
@@ -36,7 +39,7 @@
               {
                 "prefix": "-moz-",
                 "version_added": "4",
-                "version_removed": "preview"
+                "version_removed": "126"
               }
             ],
             "firefox_android": "mirror",
@@ -97,7 +100,8 @@
                 "prefix": "-webkit-",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/transition-property.json b/css/properties/transition-property.json
index cf0a7ba5c4e0b4..8c30b122cc5142 100644
--- a/css/properties/transition-property.json
+++ b/css/properties/transition-property.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transition-property",
           "spec_url": "https://drafts.csswg.org/css-transitions/#transition-property-property",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": [
               {
@@ -36,7 +39,7 @@
               {
                 "prefix": "-moz-",
                 "version_added": "4",
-                "version_removed": "preview"
+                "version_removed": "126"
               }
             ],
             "firefox_android": "mirror",
@@ -89,7 +92,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,7 +103,10 @@
         },
         "IDENT_value": {
           "__compat": {
-            "description": "<code>IDENT</code> value",
+            "description": "`IDENT` value",
+            "tags": [
+              "web-features:transitions"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -125,7 +132,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -137,6 +145,9 @@
         "all": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transitions/#valdef-transition-property-all",
+            "tags": [
+              "web-features:transitions"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -160,7 +171,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -172,6 +184,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transitions/#propdef-transition-property",
+            "tags": [
+              "web-features:transitions"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -195,7 +210,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/transition-timing-function.json b/css/properties/transition-timing-function.json
index b9c2cf440921df..640ff2e66443a6 100644
--- a/css/properties/transition-timing-function.json
+++ b/css/properties/transition-timing-function.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transition-timing-function",
           "spec_url": "https://drafts.csswg.org/css-transitions/#transition-timing-function-property",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": [
               {
@@ -36,7 +39,7 @@
               {
                 "prefix": "-moz-",
                 "version_added": "4",
-                "version_removed": "preview"
+                "version_removed": "126"
               }
             ],
             "firefox_android": "mirror",
@@ -89,7 +92,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,7 +103,10 @@
         },
         "jump": {
           "__compat": {
-            "description": "<code>jump-</code> keywords for <code>steps()</code>",
+            "description": "`jump-` keywords for `steps()`",
+            "tags": [
+              "web-features:transitions"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -121,7 +128,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/transition.json b/css/properties/transition.json
index 0eb77023e2a7b9..245356bbc39f30 100644
--- a/css/properties/transition.json
+++ b/css/properties/transition.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transition",
           "spec_url": "https://drafts.csswg.org/css-transitions/#transition-shorthand-property",
+          "tags": [
+            "web-features:transitions"
+          ],
           "support": {
             "chrome": [
               {
@@ -29,9 +32,9 @@
               {
                 "version_added": "16",
                 "notes": [
-                  "Before Firefox 57, transitions do not work when transitioning from a <a href='https://developer.mozilla.org/docs/Web/CSS/text-shadow'><code>text-shadow</code></a> with a color specified to a <code>text-shadow</code> without a color specified (see <a href='https://bugzil.la/726550'>bug 726550</a>).",
-                  "Before Firefox 57, cancelling a filling animation (for example, with <code>animation-fill-mode: forwards</code> set) can trigger a transition set on the same element, although only once (see <a href='https://bugzil.la/1192592'>bug 1192592</a> and <a href='https://bug1192592.bmoattachments.org/attachment.cgi?id=8843824'>these test cases</a> for more information).",
-                  "Before Firefox 57, the <a href='https://developer.mozilla.org/docs/Web/CSS/background-position'><code>background-position</code></a> property can't be transitioned between two values containing different numbers of <a href='https://developer.mozilla.org/docs/Web/CSS/position_value'><code>&lt;position&gt;</code></a> values, for example <code>background-position: 10px 10px;</code> and <code>background-position: 20px 20px, 30px 30px;</code> (see <a href='https://bugzil.la/1390446'>bug 1390446</a>)."
+                  "Before Firefox 57, transitions do not work when transitioning from a [`text-shadow`](https://developer.mozilla.org/docs/Web/CSS/text-shadow) with a color specified to a `text-shadow` without a color specified (see [bug 726550](https://bugzil.la/726550)).",
+                  "Before Firefox 57, cancelling a filling animation (for example, with `animation-fill-mode: forwards` set) can trigger a transition set on the same element, although only once (see [bug 1192592](https://bugzil.la/1192592) and [these test cases](https://bug1192592.bmoattachments.org/attachment.cgi?id=8843824) for more information).",
+                  "Before Firefox 57, the [`background-position`](https://developer.mozilla.org/docs/Web/CSS/background-position) property can't be transitioned between two values containing different numbers of [`&lt;position&gt;`](https://developer.mozilla.org/docs/Web/CSS/position_value) values, for example `background-position: 10px 10px;` and `background-position: 20px 20px, 30px 30px;` (see [bug 1390446](https://bugzil.la/1390446))."
                 ]
               },
               {
@@ -102,7 +105,8 @@
                 "prefix": "-webkit-",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,6 +117,9 @@
         "gradients_can_animate": {
           "__compat": {
             "description": "Gradients can be animated",
+            "tags": [
+              "web-features:transitions"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -137,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -148,7 +156,10 @@
         },
         "transition-behavior": {
           "__compat": {
-            "description": "<code>transition-behavior</code> value",
+            "description": "`transition-behavior` value",
+            "tags": [
+              "web-features:transition-behavior"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117"
@@ -156,8 +167,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "preview",
-                "impl_url": "https://bugzil.la/1805727"
+                "version_added": "129"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -167,14 +177,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "17.4"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
diff --git a/css/properties/translate.json b/css/properties/translate.json
index abb6f4f8e7eb13..a8deb81850819d 100644
--- a/css/properties/translate.json
+++ b/css/properties/translate.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +41,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#valdef-translate-none",
+            "tags": [
+              "web-features:individual-transforms"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/unicode-bidi.json b/css/properties/unicode-bidi.json
index 7cc1123bf61020..3000232c1a518c 100644
--- a/css/properties/unicode-bidi.json
+++ b/css/properties/unicode-bidi.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/unicode-bidi",
           "spec_url": "https://drafts.csswg.org/css-writing-modes/#unicode-bidi",
+          "tags": [
+            "web-features:layout-direction-override"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
         "bidi-override": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-unicode-bidi-bidi-override",
+            "tags": [
+              "web-features:layout-direction-override"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
         "embed": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-unicode-bidi-embed",
+            "tags": [
+              "web-features:layout-direction-override"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -113,6 +125,9 @@
         "isolate": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-unicode-bidi-isolate",
+            "tags": [
+              "web-features:layout-direction-override"
+            ],
             "support": {
               "chrome": [
                 {
@@ -122,8 +137,8 @@
                   "prefix": "-webkit-",
                   "version_added": "16",
                   "notes": [
-                    "Avoiding using <code>-webkit-isolate</code>. It can lock up older versions of Safari (up to version 9) and Chrome (up to version 47).",
-                    "Since Chrome 19, the syntax from a previous version of the specification, where the <code>isolate</code> keyword could be used together with <code>bidi-override</code>, is allowed."
+                    "Before Chrome 47, `-webkit-isolate` could lock up the browser.",
+                    "Since Chrome 19, the syntax from a previous version of the specification, where the `isolate` keyword could be used together with `bidi-override`, is allowed."
                   ]
                 }
               ],
@@ -147,7 +162,7 @@
                   "prefix": "-moz-",
                   "version_added": "10",
                   "version_removed": "54",
-                  "notes": "From Firefox 10 to Firefox 16 (inclusive), the <code>isolate</code> keyword could be used together with <code>bidi-override</code>, which was the syntax from a previous version of the specification. From Firefox 17, only one value is allowed. Use <code>isolate-override</code> instead the previous <code>isolate bidi-override</code>."
+                  "notes": "From Firefox 10 to Firefox 16 (inclusive), the `isolate` keyword could be used together with `bidi-override`, which was the syntax from a previous version of the specification. From Firefox 17, only one value is allowed. Use `isolate-override` instead the previous `isolate bidi-override`."
                 }
               ],
               "firefox_android": "mirror",
@@ -155,19 +170,7 @@
                 "version_added": false
               },
               "oculus": "mirror",
-              "opera": [
-                {
-                  "version_added": "35"
-                },
-                {
-                  "prefix": "-webkit-",
-                  "version_added": "15",
-                  "notes": [
-                    "Avoiding using <code>-webkit-isolate</code>. It can lock up older versions of Opera (up to version 34).",
-                    "The syntax from a previous version of the specification, where the <code>isolate</code> keyword could be used together with <code>bidi-override</code>, is allowed."
-                  ]
-                }
-              ],
+              "opera": "mirror",
               "opera_android": "mirror",
               "safari": [
                 {
@@ -176,12 +179,13 @@
                 {
                   "prefix": "-webkit-",
                   "version_added": "6",
-                  "notes": "Avoiding using <code>-webkit-isolate</code>. It can lock up older versions of Safari (up to version 9) and Chrome (up to version 47)."
+                  "notes": "Before Safari 9, `-webkit-isolate` could lock up the browser."
                 }
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -193,6 +197,9 @@
         "isolate-override": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-unicode-bidi-isolate-override",
+            "tags": [
+              "web-features:layout-direction-override"
+            ],
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -227,7 +234,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -239,6 +247,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-unicode-bidi-normal",
+            "tags": [
+              "web-features:layout-direction-override"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -262,7 +273,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -274,6 +286,9 @@
         "plaintext": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-writing-modes/#valdef-unicode-bidi-plaintext",
+            "tags": [
+              "web-features:layout-direction-override"
+            ],
             "support": {
               "chrome": {
                 "version_added": "48"
@@ -289,8 +304,8 @@
                   "version_added": "10",
                   "version_removed": "54",
                   "notes": [
-                    "Before Firefox 50, the <code>plaintext</code> value was ignored for vertical writing modes (<a href='https://bugzil.la/1302734'>bug 1302734</a>).",
-                    "Before Firefox 15, <code>plaintext</code> didn't do anything to an inline element. The specification changed and the implementation was changed in Firefox 15."
+                    "Before Firefox 50, the `plaintext` value was ignored for vertical writing modes ([bug 1302734](https://bugzil.la/1302734)).",
+                    "Before Firefox 15, `plaintext` didn't do anything to an inline element. The specification changed and the implementation was changed in Firefox 15."
                   ]
                 }
               ],
@@ -312,7 +327,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/user-modify.json b/css/properties/user-modify.json
index eb0893d8a95d0c..3ba3b46191e9b5 100644
--- a/css/properties/user-modify.json
+++ b/css/properties/user-modify.json
@@ -17,11 +17,9 @@
             "firefox": {
               "prefix": "-moz-",
               "version_added": "1",
+              "version_removed": "132",
               "partial_implementation": true,
-              "notes": [
-                "While the CSS property is parsed and accepted, it does not have any effect.",
-                "Scheduled for removal (see <a href='https://bugzil.la/1388910'>bug 1388910</a>)."
-              ]
+              "notes": "While the CSS property is parsed and accepted, it does not have any effect."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -49,7 +47,8 @@
             "webview_android": {
               "prefix": "-webkit-",
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -86,6 +85,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
+              },
+              "webview_ios": {
+                "version_added": false
               }
             },
             "status": {
diff --git a/css/properties/user-select.json b/css/properties/user-select.json
index dd24909e4f44d8..2649c6a524ebf1 100644
--- a/css/properties/user-select.json
+++ b/css/properties/user-select.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/user-select",
           "spec_url": "https://drafts.csswg.org/css-ui/#content-selection",
+          "tags": [
+            "web-features:user-select"
+          ],
           "support": {
             "chrome": [
               {
@@ -67,7 +70,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,6 +81,9 @@
         },
         "all": {
           "__compat": {
+            "tags": [
+              "web-features:user-select"
+            ],
             "support": {
               "chrome": {
                 "version_added": "53"
@@ -98,7 +105,10 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
@@ -109,6 +119,9 @@
         },
         "auto": {
           "__compat": {
+            "tags": [
+              "web-features:user-select"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -134,44 +147,10 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
-        },
-        "contain": {
-          "__compat": {
-            "support": {
-              "chrome": {
+              "webview_android": "mirror",
+              "webview_ios": {
                 "version_added": false
-              },
-              "chrome_android": "mirror",
-              "edge": {
-                "alternative_name": "element",
-                "version_added": "12",
-                "version_removed": "79"
-              },
-              "firefox": {
-                "version_added": false
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "alternative_name": "element",
-                "version_added": "10"
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": false
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              }
             },
             "status": {
               "experimental": false,
@@ -182,6 +161,9 @@
         },
         "none": {
           "__compat": {
+            "tags": [
+              "web-features:user-select"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -214,7 +196,10 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
@@ -225,6 +210,9 @@
         },
         "text": {
           "__compat": {
+            "tags": [
+              "web-features:user-select"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -250,7 +238,10 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/vector-effect.json b/css/properties/vector-effect.json
index af02f9738892ae..e116668a4eeefc 100644
--- a/css/properties/vector-effect.json
+++ b/css/properties/vector-effect.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/vector-effect",
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#VectorEffectProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/vertical-align.json b/css/properties/vertical-align.json
index 69d7ba2291185e..91e99db9aff3ad 100644
--- a/css/properties/vertical-align.json
+++ b/css/properties/vertical-align.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/vertical-align",
           "spec_url": "https://drafts.csswg.org/css2/#propdef-vertical-align",
+          "tags": [
+            "web-features:vertical-align"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +45,9 @@
         "baseline": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-vertical-align-baseline",
+            "tags": [
+              "web-features:vertical-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -64,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +84,9 @@
         "bottom": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-vertical-align-bottom",
+            "tags": [
+              "web-features:vertical-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -99,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -111,6 +123,9 @@
         "middle": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-vertical-align-middle",
+            "tags": [
+              "web-features:vertical-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -134,7 +149,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -146,6 +162,9 @@
         "sub": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-vertical-align-sub",
+            "tags": [
+              "web-features:vertical-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -169,7 +188,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -181,6 +201,9 @@
         "super": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-vertical-align-super",
+            "tags": [
+              "web-features:vertical-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -204,7 +227,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -216,6 +240,9 @@
         "text-bottom": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-vertical-align-text-bottom",
+            "tags": [
+              "web-features:vertical-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -239,7 +266,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -251,6 +279,9 @@
         "text-top": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-vertical-align-text-top",
+            "tags": [
+              "web-features:vertical-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -274,7 +305,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -286,6 +318,9 @@
         "top": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-vertical-align-top",
+            "tags": [
+              "web-features:vertical-align"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -309,7 +344,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/view-timeline-axis.json b/css/properties/view-timeline-axis.json
index c0b5ecaba0e9d3..2a0c716d76172b 100644
--- a/css/properties/view-timeline-axis.json
+++ b/css/properties/view-timeline-axis.json
@@ -23,7 +23,7 @@
                   "value_to_set": "true"
                 }
               ],
-              "notes": "Now supports the <code>x</code> and <code>y</code> values, and also the deprecated <code>horizontal</code> and <code>vertical</code> values."
+              "notes": "Now supports the `x` and `y` values, and also the deprecated `horizontal` and `vertical` values."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -75,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -113,7 +115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -151,7 +154,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -189,7 +193,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/view-timeline-inset.json b/css/properties/view-timeline-inset.json
index 75a2d65f7a60a5..885366bb586b1f 100644
--- a/css/properties/view-timeline-inset.json
+++ b/css/properties/view-timeline-inset.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/properties/view-timeline-name.json b/css/properties/view-timeline-name.json
index 56c5b9c33c326d..78c94fe5dfe191 100644
--- a/css/properties/view-timeline-name.json
+++ b/css/properties/view-timeline-name.json
@@ -37,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/view-timeline.json b/css/properties/view-timeline.json
index a07192aed4473f..6ab5c6eb87a623 100644
--- a/css/properties/view-timeline.json
+++ b/css/properties/view-timeline.json
@@ -23,7 +23,7 @@
                   "value_to_set": "true"
                 }
               ],
-              "notes": "Now supports the <code>x</code> and <code>y</code> values, and also the deprecated <code>horizontal</code> and <code>vertical</code> values."
+              "notes": "Now supports the `x` and `y` values, and also the deprecated `horizontal` and `vertical` values."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/properties/view-transition-class.json b/css/properties/view-transition-class.json
index d613cb8cb1544e..374ba72268124e 100644
--- a/css/properties/view-transition-class.json
+++ b/css/properties/view-transition-class.json
@@ -4,6 +4,9 @@
       "view-transition-class": {
         "__compat": {
           "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#view-transition-class-prop",
+          "tags": [
+            "web-features:view-transition-class"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
@@ -11,7 +14,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1860854"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -21,14 +25,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -36,6 +41,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#valdef-view-transition-class-none",
+            "tags": [
+              "web-features:view-transition-class"
+            ],
             "support": {
               "chrome": {
                 "version_added": "125"
@@ -53,14 +61,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
diff --git a/css/properties/view-transition-name.json b/css/properties/view-transition-name.json
index 00142f9915e6bd..5c1d9fa1a5191a 100644
--- a/css/properties/view-transition-name.json
+++ b/css/properties/view-transition-name.json
@@ -15,7 +15,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1823896"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -29,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +42,9 @@
         "none": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-view-transitions/#valdef-view-transition-name-none",
+            "tags": [
+              "web-features:view-transitions"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -61,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/visibility.json b/css/properties/visibility.json
index 0839cf3cb75886..e0783333f6701b 100644
--- a/css/properties/visibility.json
+++ b/css/properties/visibility.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/visibility",
           "spec_url": "https://drafts.csswg.org/css-display/#visibility",
+          "tags": [
+            "web-features:visibility"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -20,9 +23,9 @@
             "ie": {
               "version_added": "4",
               "notes": [
-                "Internet Explorer doesn't support <code>visibility: initial</code>.",
-                "Internet Explorer doesn't support <code>visibility: unset</code>.",
-                "Up to Internet Explorer 7, descendants of <code>hidden</code> elements will still be invisible even if they have <code>visibility</code> set to <code>visible</code>."
+                "Internet Explorer doesn't support `visibility: initial`.",
+                "Internet Explorer doesn't support `visibility: unset`.",
+                "Up to Internet Explorer 7, descendants of `hidden` elements will still be invisible even if they have `visibility` set to `visible`."
               ]
             },
             "oculus": "mirror",
@@ -37,7 +40,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,12 +52,15 @@
         "collapse": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-display/#valdef-visibility-collapse",
+            "tags": [
+              "web-features:visibility"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1",
                 "notes": [
-                  "Chrome treats <code>visibility: collapse</code> like <code>hidden</code>, leaving a white gap.",
-                  "Chrome supports the <code>collapse</code> value only on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tr'><code>&lt;tr&gt;</code></a>, <a href='https://developer.mozilla.org/docs/Web/HTML/Element/thead'><code>&lt;thead&gt;</code></a>, <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tbody'><code>&lt;tbody&gt;</code></a>, and <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tfoot'><code>&lt;tfoot&gt;</code></a>, but not on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/col'><code>&lt;col&gt;</code></a> and <a href='https://developer.mozilla.org/docs/Web/HTML/Element/colgroup'><code>&lt;colgroup&gt;</code></a> elements."
+                  "Chrome treats `visibility: collapse` like `hidden`, leaving a white gap.",
+                  "Chrome supports the `collapse` value only on [`&lt;tr&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tr), [`&lt;thead&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/thead), [`&lt;tbody&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tbody), and [`&lt;tfoot&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tfoot), but not on [`&lt;col&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/col) and [`&lt;colgroup&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/colgroup) elements."
                 ]
               },
               "chrome_android": "mirror",
@@ -63,8 +70,8 @@
               "firefox": {
                 "version_added": "1",
                 "notes": [
-                  "Firefox doesn't hide borders when hiding <a href='https://developer.mozilla.org/docs/Web/HTML/Element/col'><code>&lt;col&gt;</code></a> and <a href='https://developer.mozilla.org/docs/Web/HTML/Element/colgroup'><code>&lt;colgroup&gt;</code></a> elements if <code>border-collapse: collapse</code> is set.",
-                  "Before Firefox 88, <code>collapse</code> is not supported on ruby annotations."
+                  "Firefox doesn't hide borders when hiding [`&lt;col&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/col) and [`&lt;colgroup&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/colgroup) elements if `border-collapse: collapse` is set.",
+                  "Before Firefox 88, `collapse` is not supported on ruby annotations."
                 ]
               },
               "firefox_android": "mirror",
@@ -75,27 +82,28 @@
               "opera": {
                 "version_added": "4",
                 "notes": [
-                  "Opera treats <code>visibility: collapse</code> like <code>hidden</code>, leaving a white gap.",
-                  "Opera supports the <code>collapse</code> value only on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tr'><code>&lt;tr&gt;</code></a>, <a href='https://developer.mozilla.org/docs/Web/HTML/Element/thead'><code>&lt;thead&gt;</code></a>, <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tbody'><code>&lt;tbody&gt;</code></a>, and <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tfoot'><code>&lt;tfoot&gt;</code></a>, but not on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/col'><code>&lt;col&gt;</code></a> and <a href='https://developer.mozilla.org/docs/Web/HTML/Element/colgroup'><code>&lt;colgroup&gt;</code></a> elements."
+                  "Opera treats `visibility: collapse` like `hidden`, leaving a white gap.",
+                  "Opera supports the `collapse` value only on [`&lt;tr&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tr), [`&lt;thead&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/thead), [`&lt;tbody&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tbody), and [`&lt;tfoot&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tfoot), but not on [`&lt;col&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/col) and [`&lt;colgroup&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/colgroup) elements."
                 ]
               },
               "opera_android": {
                 "version_added": "10.1",
                 "notes": [
-                  "Opera treats <code>visibility: collapse</code> like <code>hidden</code>, leaving a white gap.",
-                  "Opera supports the <code>collapse</code> value only on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tr'><code>&lt;tr&gt;</code></a>, <a href='https://developer.mozilla.org/docs/Web/HTML/Element/thead'><code>&lt;thead&gt;</code></a>, <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tbody'><code>&lt;tbody&gt;</code></a>, and <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tfoot'><code>&lt;tfoot&gt;</code></a>, but not on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/col'><code>&lt;col&gt;</code></a> and <a href='https://developer.mozilla.org/docs/Web/HTML/Element/colgroup'><code>&lt;colgroup&gt;</code></a> elements."
+                  "Opera treats `visibility: collapse` like `hidden`, leaving a white gap.",
+                  "Opera supports the `collapse` value only on [`&lt;tr&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tr), [`&lt;thead&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/thead), [`&lt;tbody&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tbody), and [`&lt;tfoot&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tfoot), but not on [`&lt;col&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/col) and [`&lt;colgroup&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/colgroup) elements."
                 ]
               },
               "safari": {
                 "version_added": "1.3",
                 "notes": [
-                  "Safari treats <code>visibility: collapse</code> like <code>hidden</code>, leaving a white gap.",
-                  "Safari supports the collapse value only on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tr'><code>&lt;tr&gt;</code></a>, <a href='https://developer.mozilla.org/docs/Web/HTML/Element/thead'><code>&lt;thead&gt;</code></a>, <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tbody'><code>&lt;tbody&gt;</code></a>, and <a href='https://developer.mozilla.org/docs/Web/HTML/Element/tfoot'><code>&lt;tfoot&gt;</code></a>, but not on <a href='https://developer.mozilla.org/docs/Web/HTML/Element/col'><code>&lt;col&gt;</code></a> and <a href='https://developer.mozilla.org/docs/Web/HTML/Element/colgroup'><code>&lt;colgroup&gt;</code></a> elements."
+                  "Safari treats `visibility: collapse` like `hidden`, leaving a white gap.",
+                  "Safari supports the collapse value only on [`&lt;tr&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tr), [`&lt;thead&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/thead), [`&lt;tbody&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tbody), and [`&lt;tfoot&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/tfoot), but not on [`&lt;col&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/col) and [`&lt;colgroup&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/colgroup) elements."
                 ]
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,6 +115,9 @@
         "hidden": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-display/#valdef-visibility-hidden",
+            "tags": [
+              "web-features:visibility"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -130,7 +141,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,6 +154,9 @@
         "visible": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-display/#valdef-visibility-visible",
+            "tags": [
+              "web-features:visibility"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -165,7 +180,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/white-space-collapse.json b/css/properties/white-space-collapse.json
index 2ba6dc708eebd5..35e4871e6b68d8 100644
--- a/css/properties/white-space-collapse.json
+++ b/css/properties/white-space-collapse.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/white-space-collapse",
           "spec_url": "https://drafts.csswg.org/css-text-4/#white-space-collapsing",
+          "tags": [
+            "web-features:white-space-collapse"
+          ],
           "support": {
             "chrome": {
               "version_added": "114"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "break-spaces": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-white-space-collapse-break-spaces",
+            "tags": [
+              "web-features:white-space-collapse"
+            ],
             "support": {
               "chrome": {
                 "version_added": "114"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "collapse": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-white-space-collapse-collapse",
+            "tags": [
+              "web-features:white-space-collapse"
+            ],
             "support": {
               "chrome": {
                 "version_added": "114"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +115,9 @@
         "preserve": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-white-space-collapse-preserve",
+            "tags": [
+              "web-features:white-space-collapse"
+            ],
             "support": {
               "chrome": {
                 "version_added": "114"
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,6 +152,9 @@
         "preserve-breaks": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-white-space-collapse-preserve-breaks",
+            "tags": [
+              "web-features:white-space-collapse"
+            ],
             "support": {
               "chrome": {
                 "version_added": "114"
@@ -157,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -165,6 +185,42 @@
               "deprecated": false
             }
           }
+        },
+        "preserve-spaces": {
+          "__compat": {
+            "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-white-space-collapse-preserve-spaces",
+            "tags": [
+              "web-features:white-space-collapse"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "124"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/css/properties/white-space.json b/css/properties/white-space.json
index eb72a8cd2f6807..78b16201113d2a 100644
--- a/css/properties/white-space.json
+++ b/css/properties/white-space.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/white-space",
           "spec_url": "https://drafts.csswg.org/css-text/#white-space-property",
+          "tags": [
+            "web-features:white-space"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
         "break-spaces": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-white-space-break-spaces",
+            "tags": [
+              "web-features:white-space"
+            ],
             "support": {
               "chrome": {
                 "version_added": "76"
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-white-space-normal",
+            "tags": [
+              "web-features:white-space"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -113,6 +125,9 @@
         "nowrap": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-white-space-nowrap",
+            "tags": [
+              "web-features:white-space"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -140,7 +155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -152,6 +168,9 @@
         "pre": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-white-space-pre",
+            "tags": [
+              "web-features:white-space"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -179,7 +198,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -191,6 +211,9 @@
         "pre-line": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-white-space-pre-line",
+            "tags": [
+              "web-features:white-space"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -220,7 +243,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -232,6 +256,9 @@
         "pre-wrap": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-white-space-pre-wrap",
+            "tags": [
+              "web-features:white-space"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -253,7 +280,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "8",
-                "notes": "From Internet Explorer 5.5 to 7, <code>word-wrap: break-word;</code> can be used for line breaks in <code>pre</code> elements."
+                "notes": "From Internet Explorer 5.5 to 7, `word-wrap: break-word;` can be used for line breaks in `pre` elements."
               },
               "oculus": "mirror",
               "opera": {
@@ -269,7 +296,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -281,11 +309,14 @@
         "shorthand_values": {
           "__compat": {
             "description": "Accepts shorthand values",
+            "tags": [
+              "web-features:white-space"
+            ],
             "support": {
               "chrome": {
                 "version_added": "114",
                 "partial_implementation": true,
-                "notes": "Accepts shorthand values for <code>white-space-collapse</code> and <code>text-wrap</code> only."
+                "notes": "Accepts shorthand values for `white-space-collapse` and `text-wrap` only."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -304,7 +335,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -316,6 +348,9 @@
         "svg_elements": {
           "__compat": {
             "description": "On SVG elements",
+            "tags": [
+              "web-features:white-space"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -340,7 +375,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -351,7 +387,10 @@
         },
         "textarea_support": {
           "__compat": {
-            "description": "Support on <code>&lt;textarea&gt;</code>",
+            "description": "Support on `&lt;textarea&gt;`",
+            "tags": [
+              "web-features:white-space"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -379,7 +418,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/widows.json b/css/properties/widows.json
index 2e06b3b3f5c257..515bc319cf7fb7 100644
--- a/css/properties/widows.json
+++ b/css/properties/widows.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-break/#widows-orphans",
             "https://drafts.csswg.org/css-multicol/#filling-columns"
           ],
+          "tags": [
+            "web-features:widows-orphans"
+          ],
           "support": {
             "chrome": {
               "version_added": "25"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/width.json b/css/properties/width.json
index b2f991ed3601b7..2db50b368a84b8 100644
--- a/css/properties/width.json
+++ b/css/properties/width.json
@@ -8,6 +8,9 @@
             "https://drafts.csswg.org/css-sizing-4/#width-height-keywords",
             "https://drafts.csswg.org/css-sizing-4/#sizing-values"
           ],
+          "tags": [
+            "web-features:width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,7 @@
         },
         "anchor-size": {
           "__compat": {
-            "description": "<code>anchor-size()</code>",
+            "description": "`anchor-size()`",
             "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
             "tags": [
               "web-features:anchor-positioning"
@@ -72,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -84,6 +89,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#preferred-size-properties",
+            "tags": [
+              "web-features:width-height"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -107,7 +115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -119,6 +128,9 @@
         "fit-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-width-fit-content",
+            "tags": [
+              "web-features:fit-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -167,7 +179,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -178,7 +191,10 @@
         },
         "fit-content_function": {
           "__compat": {
-            "description": "<code>fit-content()</code>",
+            "description": "`fit-content()`",
+            "tags": [
+              "web-features:fit-content-function"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -206,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -218,6 +235,9 @@
         "is_animatable": {
           "__compat": {
             "description": "Is animatable",
+            "tags": [
+              "web-features:width-height"
+            ],
             "support": {
               "chrome": {
                 "version_added": "26"
@@ -241,7 +261,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -253,6 +274,9 @@
         "max-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#valdef-width-max-content",
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -296,7 +320,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -308,6 +333,9 @@
         "min-content": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content",
+            "tags": [
+              "web-features:min-max-content"
+            ],
             "support": {
               "chrome": [
                 {
@@ -348,7 +376,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -360,6 +389,9 @@
         "stretch": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-sizing-4/#valdef-width-stretch",
+            "tags": [
+              "web-features:stretch"
+            ],
             "support": {
               "chrome": {
                 "alternative_name": "-webkit-fill-available",
@@ -387,10 +419,11 @@
                 "alternative_name": "-webkit-fill-available",
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
diff --git a/css/properties/will-change.json b/css/properties/will-change.json
index 617595143d0897..314dc99ade91ad 100644
--- a/css/properties/will-change.json
+++ b/css/properties/will-change.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/word-break.json b/css/properties/word-break.json
index cbafba7c9de342..32c4d9a75e467f 100644
--- a/css/properties/word-break.json
+++ b/css/properties/word-break.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/word-break",
           "spec_url": "https://drafts.csswg.org/css-text/#word-break-property",
+          "tags": [
+            "web-features:word-break"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -20,12 +23,12 @@
             "ie": [
               {
                 "version_added": "5.5",
-                "notes": "No version of Internet Explorer supports the <code>initial</code> value."
+                "notes": "No version of Internet Explorer supports the `initial` value."
               },
               {
                 "prefix": "-ms-",
                 "version_added": "8",
-                "notes": "Don't use <code>-ms-word-break</code>, which is a synonym for <code>word-break</code>."
+                "notes": "Don't use `-ms-word-break`, which is a synonym for `word-break`."
               }
             ],
             "oculus": "mirror",
@@ -36,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,10 +51,13 @@
         "auto-phrase": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text-4/#valdef-word-break-auto-phrase",
+            "tags": [
+              "web-features:word-break-auto-phrase"
+            ],
             "support": {
               "chrome": {
                 "version_added": "119",
-                "notes": "This value is only applicable if <code>lang=\"ja\"</code> is specified. This value has no effect on other locales."
+                "notes": "This value is only applicable if `lang=\"ja\"` is specified. This value has no effect on other locales."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -81,6 +89,9 @@
         "break-all": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-word-break-break-all",
+            "tags": [
+              "web-features:word-break"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -104,7 +115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -139,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -151,6 +164,9 @@
         "keep-all": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-word-break-keep-all",
+            "tags": [
+              "web-features:word-break"
+            ],
             "support": {
               "chrome": {
                 "version_added": "44"
@@ -174,7 +190,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -186,6 +203,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-word-break-normal",
+            "tags": [
+              "web-features:word-break"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -209,7 +229,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/word-spacing.json b/css/properties/word-spacing.json
index 403e41cde8f2c0..bf2ca2bbf96fe5 100644
--- a/css/properties/word-spacing.json
+++ b/css/properties/word-spacing.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/word-spacing",
           "spec_url": "https://drafts.csswg.org/css-text/#word-spacing-property",
+          "tags": [
+            "web-features:word-spacing"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +45,9 @@
         "normal": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css-text/#valdef-word-spacing-normal",
+            "tags": [
+              "web-features:word-spacing"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,7 +85,7 @@
         },
         "percentages": {
           "__compat": {
-            "description": "<code>&lt;percentage&gt;</code> values",
+            "description": "`&lt;percentage&gt;` values",
             "support": {
               "chrome": {
                 "version_added": false
@@ -99,7 +107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -111,6 +120,9 @@
         "svg_elements": {
           "__compat": {
             "description": "On SVG elements",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -136,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/writing-mode.json b/css/properties/writing-mode.json
index 379c4b38f6e3cb..ef97e119849121 100644
--- a/css/properties/writing-mode.json
+++ b/css/properties/writing-mode.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/writing-mode",
           "spec_url": "https://drafts.csswg.org/css-writing-modes/#block-flow",
+          "tags": [
+            "web-features:writing-mode"
+          ],
           "support": {
             "chrome": [
               {
@@ -63,7 +66,8 @@
                 "prefix": "-webkit-",
                 "version_added": "3"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,12 +77,17 @@
         },
         "horizontal-tb": {
           "__compat": {
+            "tags": [
+              "web-features:writing-mode"
+            ],
             "support": {
               "chrome": {
                 "version_added": "48"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
               "firefox": {
                 "version_added": "43"
               },
@@ -94,7 +103,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -128,7 +138,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -162,7 +173,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -196,7 +208,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -230,7 +243,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -241,9 +255,12 @@
         },
         "sideways-lr": {
           "__compat": {
+            "tags": [
+              "web-features:writing-mode"
+            ],
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "132"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -262,7 +279,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -273,9 +291,12 @@
         },
         "sideways-rl": {
           "__compat": {
+            "tags": [
+              "web-features:writing-mode"
+            ],
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "132"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -294,7 +315,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -328,7 +350,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -362,7 +385,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -374,6 +398,9 @@
         "vertical_oriented_form_controls": {
           "__compat": {
             "description": "Vertically-oriented form controls",
+            "tags": [
+              "web-features:vertical-form-controls"
+            ],
             "support": {
               "chrome": [
                 {
@@ -415,7 +442,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -426,12 +454,17 @@
         },
         "vertical-lr": {
           "__compat": {
+            "tags": [
+              "web-features:writing-mode"
+            ],
             "support": {
               "chrome": {
                 "version_added": "48"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
               "firefox": {
                 "version_added": "43"
               },
@@ -447,7 +480,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -458,12 +492,17 @@
         },
         "vertical-rl": {
           "__compat": {
+            "tags": [
+              "web-features:writing-mode"
+            ],
             "support": {
               "chrome": {
                 "version_added": "48"
               },
               "chrome_android": "mirror",
-              "edge": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
               "firefox": {
                 "version_added": "43"
               },
@@ -479,7 +518,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/x.json b/css/properties/x.json
index 084db7a0525563..d93db002f8405a 100644
--- a/css/properties/x.json
+++ b/css/properties/x.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/x",
           "spec_url": "https://svgwg.org/svg2-draft/geometry.html#X",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/y.json b/css/properties/y.json
index cf43cbd63d7a46..b6cd2daf487bfb 100644
--- a/css/properties/y.json
+++ b/css/properties/y.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/y",
           "spec_url": "https://svgwg.org/svg2-draft/geometry.html#Y",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/z-index.json b/css/properties/z-index.json
index 974c8bd7e7218e..5407cd74b3f23e 100644
--- a/css/properties/z-index.json
+++ b/css/properties/z-index.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/z-index",
           "spec_url": "https://drafts.csswg.org/css2/#z-index",
+          "tags": [
+            "web-features:z-index"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +45,9 @@
         "auto": {
           "__compat": {
             "spec_url": "https://drafts.csswg.org/css2/#valdef-z-index-auto",
+            "tags": [
+              "web-features:z-index"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -64,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +84,9 @@
         "negative_values": {
           "__compat": {
             "description": "Negative values",
+            "tags": [
+              "web-features:z-index"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/zoom.json b/css/properties/zoom.json
index cf47802e85092d..b6da5567922d99 100644
--- a/css/properties/zoom.json
+++ b/css/properties/zoom.json
@@ -33,7 +33,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +44,7 @@
         },
         "reset": {
           "__compat": {
-            "description": "The <code>reset</code> value",
+            "description": "The `reset` value",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/zoom#Values",
             "support": {
               "chrome": {
@@ -69,12 +70,13 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": true,
-              "deprecated": false
+              "standard_track": false,
+              "deprecated": true
             }
           }
         }
diff --git a/css/selectors/-moz-broken.json b/css/selectors/-moz-broken.json
index 571db03b4cb73c..805867f6530db2 100644
--- a/css/selectors/-moz-broken.json
+++ b/css/selectors/-moz-broken.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-broken": {
         "__compat": {
-          "description": "<code>:-moz-broken</code>",
+          "description": "`:-moz-broken`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:-moz-broken",
           "support": {
             "chrome": {
@@ -27,7 +27,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-moz-color-swatch.json b/css/selectors/-moz-color-swatch.json
index c70fcbeefddb8c..f5b6995f49fe0b 100644
--- a/css/selectors/-moz-color-swatch.json
+++ b/css/selectors/-moz-color-swatch.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-color-swatch": {
         "__compat": {
-          "description": "<code>::-moz-color-swatch</code>",
+          "description": "`::-moz-color-swatch`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-moz-color-swatch",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-moz-first-node.json b/css/selectors/-moz-first-node.json
index 78612e564e8632..73f50769fdf726 100644
--- a/css/selectors/-moz-first-node.json
+++ b/css/selectors/-moz-first-node.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-first-node": {
         "__compat": {
-          "description": "<code>:-moz-first-node</code>",
+          "description": "`:-moz-first-node`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:-moz-first-node",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/-moz-focus-inner.json b/css/selectors/-moz-focus-inner.json
index 99b705425fcb36..9635a713adfca7 100644
--- a/css/selectors/-moz-focus-inner.json
+++ b/css/selectors/-moz-focus-inner.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-focus-inner": {
         "__compat": {
-          "description": "<code>::-moz-focus-inner</code>",
+          "description": "`::-moz-focus-inner`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-moz-focus-inner",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/-moz-last-node.json b/css/selectors/-moz-last-node.json
index d07d02d2bdc20d..c8f13d20c90d15 100644
--- a/css/selectors/-moz-last-node.json
+++ b/css/selectors/-moz-last-node.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-last-node": {
         "__compat": {
-          "description": "<code>:-moz-last-node</code>",
+          "description": "`:-moz-last-node`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:-moz-last-node",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/-moz-list-bullet.json b/css/selectors/-moz-list-bullet.json
index e45a5500d57fbc..7748acdf5f8fd8 100644
--- a/css/selectors/-moz-list-bullet.json
+++ b/css/selectors/-moz-list-bullet.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-list-bullet": {
         "__compat": {
-          "description": "<code>::-moz-list-bullet</code>",
+          "description": "`::-moz-list-bullet`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-moz-list-bullet",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/-moz-list-number.json b/css/selectors/-moz-list-number.json
index bd66dee9c679b9..5c2041bbfc8ab9 100644
--- a/css/selectors/-moz-list-number.json
+++ b/css/selectors/-moz-list-number.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-list-number": {
         "__compat": {
-          "description": "<code>::-moz-list-number</code>",
+          "description": "`::-moz-list-number`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-moz-list-number",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/-moz-only-whitespace.json b/css/selectors/-moz-only-whitespace.json
index 6c2e94a7a75e9f..54362e407d7a3f 100644
--- a/css/selectors/-moz-only-whitespace.json
+++ b/css/selectors/-moz-only-whitespace.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-only-whitespace": {
         "__compat": {
-          "description": "<code>:-moz-only-whitespace</code>",
+          "description": "`:-moz-only-whitespace`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:-moz-only-whitespace",
           "support": {
             "chrome": {
@@ -27,7 +27,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-moz-progress-bar.json b/css/selectors/-moz-progress-bar.json
index a0b0041843dff6..cc849107a3f114 100644
--- a/css/selectors/-moz-progress-bar.json
+++ b/css/selectors/-moz-progress-bar.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-progress-bar": {
         "__compat": {
-          "description": "<code>::-moz-progress-bar</code>",
+          "description": "`::-moz-progress-bar`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-moz-progress-bar",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/-moz-range-progress.json b/css/selectors/-moz-range-progress.json
index 3e2e09f1e3a234..d5f2d3fbad773f 100644
--- a/css/selectors/-moz-range-progress.json
+++ b/css/selectors/-moz-range-progress.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-range-progress": {
         "__compat": {
-          "description": "<code>::-moz-range-progress</code>",
+          "description": "`::-moz-range-progress`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-moz-range-progress",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-moz-range-thumb.json b/css/selectors/-moz-range-thumb.json
index 483f3b60ccff94..5f2ed2a0e94172 100644
--- a/css/selectors/-moz-range-thumb.json
+++ b/css/selectors/-moz-range-thumb.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-range-thumb": {
         "__compat": {
-          "description": "<code>::-moz-range-thumb</code>",
+          "description": "`::-moz-range-thumb`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-moz-range-thumb",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-moz-range-track.json b/css/selectors/-moz-range-track.json
index e9320fb0c2d2cf..573c9a9c763e57 100644
--- a/css/selectors/-moz-range-track.json
+++ b/css/selectors/-moz-range-track.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-range-track": {
         "__compat": {
-          "description": "<code>::-moz-range-track</code>",
+          "description": "`::-moz-range-track`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-moz-range-track",
           "support": {
             "chrome": {
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-moz-submit-invalid.json b/css/selectors/-moz-submit-invalid.json
index e7ad9ac956fca3..3eb3c797e8ffcb 100644
--- a/css/selectors/-moz-submit-invalid.json
+++ b/css/selectors/-moz-submit-invalid.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-submit-invalid": {
         "__compat": {
-          "description": "<code>:-moz-submit-invalid</code>",
+          "description": "`:-moz-submit-invalid`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:-moz-submit-invalid",
           "support": {
             "chrome": {
@@ -21,7 +21,7 @@
                     "value_to_set": "true"
                   }
                 ],
-                "notes": "From Firefox 88 the feature has been placed behind a flag. See <a href='https://bugzil.la/1694129'>bug 1694129</a>."
+                "notes": "From Firefox 88 the feature has been placed behind a flag. See [bug 1694129](https://bugzil.la/1694129)."
               },
               {
                 "version_added": "4",
@@ -31,7 +31,7 @@
             "firefox_android": {
               "version_added": "4",
               "version_removed": "88",
-              "notes": "From version 88, the feature has been withdrawn. See <a href='https://bugzil.la/1694129'>bug 1694129</a>."
+              "notes": "From version 88, the feature has been withdrawn. See [bug 1694129](https://bugzil.la/1694129)."
             },
             "ie": {
               "version_added": false
@@ -44,7 +44,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-moz-window-inactive.json b/css/selectors/-moz-window-inactive.json
index 8b5009a1e6c20d..391dc8365812db 100644
--- a/css/selectors/-moz-window-inactive.json
+++ b/css/selectors/-moz-window-inactive.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-moz-window-inactive": {
         "__compat": {
-          "description": "<code>:-moz-window-inactive</code>",
+          "description": "`:-moz-window-inactive`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:-moz-window-inactive",
           "support": {
             "chrome": {
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-inner-spin-button.json b/css/selectors/-webkit-inner-spin-button.json
index f22aa6ff70059d..bc32bfdbf98ae4 100644
--- a/css/selectors/-webkit-inner-spin-button.json
+++ b/css/selectors/-webkit-inner-spin-button.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-inner-spin-button": {
         "__compat": {
-          "description": "<code>::-webkit-inner-spin-button</code>",
+          "description": "`::-webkit-inner-spin-button`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-inner-spin-button",
           "support": {
             "chrome": {
@@ -26,7 +26,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-meter-bar.json b/css/selectors/-webkit-meter-bar.json
index ef872a5ded5ea0..412947abb59adf 100644
--- a/css/selectors/-webkit-meter-bar.json
+++ b/css/selectors/-webkit-meter-bar.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-meter-bar": {
         "__compat": {
-          "description": "<code>::-webkit-meter-bar</code>",
+          "description": "`::-webkit-meter-bar`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-meter-bar",
           "support": {
             "chrome": {
@@ -28,6 +28,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
diff --git a/css/selectors/-webkit-meter-even-less-good-value.json b/css/selectors/-webkit-meter-even-less-good-value.json
index 6c4a6d32293cf7..ced8a5f8e770f8 100644
--- a/css/selectors/-webkit-meter-even-less-good-value.json
+++ b/css/selectors/-webkit-meter-even-less-good-value.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-meter-even-less-good-value": {
         "__compat": {
-          "description": "<code>::-webkit-meter-even-less-good-value</code>",
+          "description": "`::-webkit-meter-even-less-good-value`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-meter-even-less-good-value",
           "support": {
             "chrome": {
@@ -28,6 +28,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
diff --git a/css/selectors/-webkit-meter-inner-element.json b/css/selectors/-webkit-meter-inner-element.json
index f61cd8231cd9ef..0748e7a201565e 100644
--- a/css/selectors/-webkit-meter-inner-element.json
+++ b/css/selectors/-webkit-meter-inner-element.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-meter-inner-element": {
         "__compat": {
-          "description": "<code>::-webkit-meter-inner-element</code>",
+          "description": "`::-webkit-meter-inner-element`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-meter-inner-element",
           "support": {
             "chrome": {
@@ -26,7 +26,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-meter-optimum-value.json b/css/selectors/-webkit-meter-optimum-value.json
index 0a3304581fa3d9..bb023550e3db61 100644
--- a/css/selectors/-webkit-meter-optimum-value.json
+++ b/css/selectors/-webkit-meter-optimum-value.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-meter-optimum-value": {
         "__compat": {
-          "description": "<code>::-webkit-meter-optimum-value</code>",
+          "description": "`::-webkit-meter-optimum-value`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-meter-optimum-value",
           "support": {
             "chrome": {
@@ -28,6 +28,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
diff --git a/css/selectors/-webkit-meter-suboptimum-value.json b/css/selectors/-webkit-meter-suboptimum-value.json
index be43487c800712..fb9f0304e5eaea 100644
--- a/css/selectors/-webkit-meter-suboptimum-value.json
+++ b/css/selectors/-webkit-meter-suboptimum-value.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-meter-suboptimum-value": {
         "__compat": {
-          "description": "<code>::-webkit-meter-suboptimum-value</code>",
+          "description": "`::-webkit-meter-suboptimum-value`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-meter-suboptimum-value",
           "support": {
             "chrome": {
@@ -28,6 +28,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
diff --git a/css/selectors/-webkit-progress-bar.json b/css/selectors/-webkit-progress-bar.json
index 1ccb684d6560cf..dc761cde9c5d0f 100644
--- a/css/selectors/-webkit-progress-bar.json
+++ b/css/selectors/-webkit-progress-bar.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-progress-bar": {
         "__compat": {
-          "description": "<code>::-webkit-progress-bar</code>",
+          "description": "`::-webkit-progress-bar`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-progress-bar",
           "support": {
             "chrome": {
@@ -26,7 +26,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-progress-inner-element.json b/css/selectors/-webkit-progress-inner-element.json
index 5d5d278f86ddca..f5663c60a9a734 100644
--- a/css/selectors/-webkit-progress-inner-element.json
+++ b/css/selectors/-webkit-progress-inner-element.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-progress-inner-element": {
         "__compat": {
-          "description": "<code>::-webkit-progress-inner-element</code>",
+          "description": "`::-webkit-progress-inner-element`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-progress-inner-element",
           "support": {
             "chrome": {
@@ -26,7 +26,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-progress-value.json b/css/selectors/-webkit-progress-value.json
index 91920b74da3bd5..19d7cf41238add 100644
--- a/css/selectors/-webkit-progress-value.json
+++ b/css/selectors/-webkit-progress-value.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-progress-value": {
         "__compat": {
-          "description": "<code>::-webkit-progress-value</code>",
+          "description": "`::-webkit-progress-value`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-progress-value",
           "support": {
             "chrome": {
@@ -26,7 +26,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-resizer.json b/css/selectors/-webkit-resizer.json
index d468ae62a4d313..ac5afde1265009 100644
--- a/css/selectors/-webkit-resizer.json
+++ b/css/selectors/-webkit-resizer.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-resizer": {
         "__compat": {
-          "description": "<code>::-webkit-resizer</code>",
+          "description": "`::-webkit-resizer`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-scrollbar",
           "support": {
             "chrome": {
@@ -29,7 +29,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-scrollbar-button.json b/css/selectors/-webkit-scrollbar-button.json
index 2dd3fef3ffecd9..a7276d62f30d23 100644
--- a/css/selectors/-webkit-scrollbar-button.json
+++ b/css/selectors/-webkit-scrollbar-button.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-scrollbar-button": {
         "__compat": {
-          "description": "<code>::-webkit-scrollbar-button</code>",
+          "description": "`::-webkit-scrollbar-button`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-scrollbar",
           "support": {
             "chrome": {
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-scrollbar-corner.json b/css/selectors/-webkit-scrollbar-corner.json
index 4af9a78a275d45..765ea1672c6ce2 100644
--- a/css/selectors/-webkit-scrollbar-corner.json
+++ b/css/selectors/-webkit-scrollbar-corner.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-scrollbar-corner": {
         "__compat": {
-          "description": "<code>::-webkit-scrollbar-corner</code>",
+          "description": "`::-webkit-scrollbar-corner`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-scrollbar",
           "support": {
             "chrome": {
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-scrollbar-thumb.json b/css/selectors/-webkit-scrollbar-thumb.json
index 6913503c5d131a..b0bdb5dfe71f8c 100644
--- a/css/selectors/-webkit-scrollbar-thumb.json
+++ b/css/selectors/-webkit-scrollbar-thumb.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-scrollbar-thumb": {
         "__compat": {
-          "description": "<code>::-webkit-scrollbar-thumb</code>",
+          "description": "`::-webkit-scrollbar-thumb`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-scrollbar",
           "support": {
             "chrome": {
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-scrollbar-track-piece.json b/css/selectors/-webkit-scrollbar-track-piece.json
index acaa932992f1af..1a7b0a3af9d3b0 100644
--- a/css/selectors/-webkit-scrollbar-track-piece.json
+++ b/css/selectors/-webkit-scrollbar-track-piece.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-scrollbar-track-piece": {
         "__compat": {
-          "description": "<code>::-webkit-scrollbar-track-piece</code>",
+          "description": "`::-webkit-scrollbar-track-piece`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-scrollbar",
           "support": {
             "chrome": {
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-scrollbar-track.json b/css/selectors/-webkit-scrollbar-track.json
index 93c5d53130b625..6307e37be7569f 100644
--- a/css/selectors/-webkit-scrollbar-track.json
+++ b/css/selectors/-webkit-scrollbar-track.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-scrollbar-track": {
         "__compat": {
-          "description": "<code>::-webkit-scrollbar-track</code>",
+          "description": "`::-webkit-scrollbar-track`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-scrollbar",
           "support": {
             "chrome": {
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-scrollbar.json b/css/selectors/-webkit-scrollbar.json
index 43193a4d96e583..51c7b7ce2874bd 100644
--- a/css/selectors/-webkit-scrollbar.json
+++ b/css/selectors/-webkit-scrollbar.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-scrollbar": {
         "__compat": {
-          "description": "<code>::-webkit-scrollbar</code>",
+          "description": "`::-webkit-scrollbar`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-scrollbar",
           "support": {
             "chrome": {
@@ -27,12 +27,13 @@
             },
             "safari_ios": {
               "version_added": "3",
-              "notes": "From Safari 13, only <code>display: none</code> works with this pseudo-element. Other styles have no effect."
+              "notes": "From Safari 13, only `display: none` works with this pseudo-element. Other styles have no effect."
             },
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/-webkit-search-cancel-button.json b/css/selectors/-webkit-search-cancel-button.json
index fae29a9b17e494..4dc5ca7ec844c9 100644
--- a/css/selectors/-webkit-search-cancel-button.json
+++ b/css/selectors/-webkit-search-cancel-button.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-search-cancel-button": {
         "__compat": {
-          "description": "<code>::-webkit-search-cancel-button</code>",
+          "description": "`::-webkit-search-cancel-button`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-search-cancel-button",
           "support": {
             "chrome": {
@@ -30,6 +30,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
diff --git a/css/selectors/-webkit-search-results-button.json b/css/selectors/-webkit-search-results-button.json
index 08829e9e0eb6cf..1ecf9fef424a75 100644
--- a/css/selectors/-webkit-search-results-button.json
+++ b/css/selectors/-webkit-search-results-button.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-search-results-button": {
         "__compat": {
-          "description": "<code>::-webkit-search-results-button</code>",
+          "description": "`::-webkit-search-results-button`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-search-results-button",
           "support": {
             "chrome": {
@@ -30,6 +30,9 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
+            },
+            "webview_ios": {
+              "version_added": false
             }
           },
           "status": {
diff --git a/css/selectors/-webkit-slider-runnable-track.json b/css/selectors/-webkit-slider-runnable-track.json
index 841a5b63b43bae..ab8889fe7a273b 100644
--- a/css/selectors/-webkit-slider-runnable-track.json
+++ b/css/selectors/-webkit-slider-runnable-track.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-slider-runnable-track": {
         "__compat": {
-          "description": "<code>::-webkit-slider-runnable-track</code>",
+          "description": "`::-webkit-slider-runnable-track`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-slider-runnable-track",
           "support": {
             "chrome": {
@@ -26,11 +26,12 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
-            "standard_track": true,
+            "standard_track": false,
             "deprecated": false
           }
         }
diff --git a/css/selectors/-webkit-slider-thumb.json b/css/selectors/-webkit-slider-thumb.json
index 1abc9794901724..04e659c425585e 100644
--- a/css/selectors/-webkit-slider-thumb.json
+++ b/css/selectors/-webkit-slider-thumb.json
@@ -3,7 +3,7 @@
     "selectors": {
       "-webkit-slider-thumb": {
         "__compat": {
-          "description": "<code>::-webkit-slider-thumb</code>",
+          "description": "`::-webkit-slider-thumb`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::-webkit-slider-thumb",
           "support": {
             "chrome": {
@@ -26,11 +26,12 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
-            "standard_track": true,
+            "standard_track": false,
             "deprecated": false
           }
         }
diff --git a/css/selectors/active-view-transition-type.json b/css/selectors/active-view-transition-type.json
index 750b9f77315063..2d6f5dfa72f0cf 100644
--- a/css/selectors/active-view-transition-type.json
+++ b/css/selectors/active-view-transition-type.json
@@ -3,8 +3,11 @@
     "selectors": {
       "active-view-transition-type": {
         "__compat": {
-          "description": "<code>:active-view-transition-type()</code>",
+          "description": "`:active-view-transition-type()`",
           "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#the-active-view-transition-type-pseudo",
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125",
@@ -23,11 +26,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "preview"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/active-view-transition.json b/css/selectors/active-view-transition.json
index 5ec81d1e1d2c36..3caf9e7ce3cb5f 100644
--- a/css/selectors/active-view-transition.json
+++ b/css/selectors/active-view-transition.json
@@ -3,8 +3,11 @@
     "selectors": {
       "active-view-transition": {
         "__compat": {
-          "description": "<code>:active-view-transition</code>",
+          "description": "`:active-view-transition`",
           "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#the-active-view-transition-pseudo",
+          "tags": [
+            "web-features:active-view-transition"
+          ],
           "support": {
             "chrome": {
               "version_added": "125",
@@ -23,14 +26,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/css/selectors/active.json b/css/selectors/active.json
index 498c614d898ec0..279fcb44c050bf 100644
--- a/css/selectors/active.json
+++ b/css/selectors/active.json
@@ -3,12 +3,15 @@
     "selectors": {
       "active": {
         "__compat": {
-          "description": "<code>:active</code>",
+          "description": "`:active`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:active",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-active",
             "https://drafts.csswg.org/selectors/#the-active-pseudo"
           ],
+          "tags": [
+            "web-features:user-action-pseudos"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,7 +50,10 @@
         },
         "non_a_elements": {
           "__compat": {
-            "description": "Non-<code>a</code> element support",
+            "description": "Non-`a` element support",
+            "tags": [
+              "web-features:user-action-pseudos"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -72,10 +79,11 @@
               },
               "safari_ios": {
                 "version_added": "1",
-                "notes": "By default, Safari on iOS does not use the <a href='https://developer.mozilla.org/docs/Web/CSS/:active'><code>:active</code></a> state unless there is a <a href='https://developer.mozilla.org/docs/Web/Reference/Events/touchstart'><code>touchstart</code></a> event handler on the relevant element or on the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/body'><code>&lt;body&gt;</code></a> element."
+                "notes": "By default, Safari on iOS does not use the [`:active`](https://developer.mozilla.org/docs/Web/CSS/:active) state unless there is a [`touchstart`](https://developer.mozilla.org/docs/Web/Reference/Events/touchstart) event handler on the relevant element or on the [`&lt;body&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/body) element."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/after.json b/css/selectors/after.json
index 67a3bcb6f93055..fee764b54b52ba 100644
--- a/css/selectors/after.json
+++ b/css/selectors/after.json
@@ -3,9 +3,12 @@
     "selectors": {
       "after": {
         "__compat": {
-          "description": "<code>::after</code>",
+          "description": "`::after`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::after",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#generated-content",
+          "tags": [
+            "web-features:before-after"
+          ],
           "support": {
             "chrome": [
               {
@@ -30,8 +33,8 @@
               {
                 "version_added": "1.5",
                 "notes": [
-                  "Before Firefox 57, Firefox had a bug where <code>::after</code> pseudo-elements were still generated, even if the <a href='https://developer.mozilla.org/docs/Web/CSS/content'><code>content</code></a> property value were set to <code>normal</code> or <code>none</code>.",
-                  "Before Firefox 3.5, only the CSS level 2 behavior of <code>:after</code> was supported, which disallowed <a href='https://developer.mozilla.org/docs/Web/CSS/position'><code>position</code></a>, <a href='https://developer.mozilla.org/docs/Web/CSS/float'><code>float</code></a>, <code>list-style-*</code> and some <code>display</code> properties."
+                  "Before Firefox 57, Firefox had a bug where `::after` pseudo-elements were still generated, even if the [`content`](https://developer.mozilla.org/docs/Web/CSS/content) property value were set to `normal` or `none`.",
+                  "Before Firefox 3.5, only the CSS level 2 behavior of `:after` was supported, which disallowed [`position`](https://developer.mozilla.org/docs/Web/CSS/position), [`float`](https://developer.mozilla.org/docs/Web/CSS/float), `list-style-*` and some `display` properties."
                 ]
               },
               {
@@ -87,7 +90,8 @@
                 "alternative_name": ":after",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -98,6 +102,9 @@
         "animation_and_transition_support": {
           "__compat": {
             "description": "Animation and transition support",
+            "tags": [
+              "web-features:before-after"
+            ],
             "support": {
               "chrome": {
                 "version_added": "26"
@@ -117,11 +124,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "7"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/any-link.json b/css/selectors/any-link.json
index f806afd8c9337a..53ceed7b429e46 100644
--- a/css/selectors/any-link.json
+++ b/css/selectors/any-link.json
@@ -3,9 +3,12 @@
     "selectors": {
       "any-link": {
         "__compat": {
-          "description": "<code>:any-link</code>",
+          "description": "`:any-link`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:any-link",
           "spec_url": "https://drafts.csswg.org/selectors/#the-any-link-pseudo",
+          "tags": [
+            "web-features:link-selectors"
+          ],
           "support": {
             "chrome": [
               {
@@ -67,7 +70,8 @@
                 "prefix": "-webkit-",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,7 +81,10 @@
         },
         "not_match_link": {
           "__compat": {
-            "description": "<code>:any-link</code> privacy: selector does not match <code>&lt;link&gt;</code> elements",
+            "description": "`:any-link` privacy: selector does not match `&lt;link&gt;` elements",
+            "tags": [
+              "web-features:link-selectors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "65"
@@ -95,12 +102,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false,
-                "notes": "Safari currently matches <code>&lt;link&gt;</code> elements with link pseudo-classes. See <a href='https://webkit.org/b/220740'>bug 220740</a>."
+                "version_added": "15"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/attribute.json b/css/selectors/attribute.json
index 45dfbf3ebf370c..d052f651d20296 100644
--- a/css/selectors/attribute.json
+++ b/css/selectors/attribute.json
@@ -3,9 +3,12 @@
     "selectors": {
       "attribute": {
         "__compat": {
-          "description": "Attribute selector (<code>[attr=value]</code>)",
+          "description": "Attribute selector (`[attr=value]`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Attribute_selectors",
           "spec_url": "https://drafts.csswg.org/selectors/#attribute-selectors",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,10 @@
         },
         "case_insensitive_modifier": {
           "__compat": {
-            "description": "Case-insensitive modifier (<code>i</code>)",
+            "description": "Case-insensitive modifier (`i`)",
+            "tags": [
+              "web-features:case-insensitive-attributes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,11 +86,14 @@
         },
         "case_sensitive_modifier": {
           "__compat": {
-            "description": "Case-sensitive modifier (<code>s</code>)",
+            "description": "Case-sensitive modifier (`s`)",
+            "tags": [
+              "web-features:case-sensitive-attributes"
+            ],
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/1041095"
+                "impl_url": "https://crbug.com/40667738"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -97,11 +108,13 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": false,
+                "impl_url": "https://webkit.org/b/272573"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/autofill.json b/css/selectors/autofill.json
index 1ce8541a18dc8e..de6d41c7136960 100644
--- a/css/selectors/autofill.json
+++ b/css/selectors/autofill.json
@@ -3,7 +3,7 @@
     "selectors": {
       "autofill": {
         "__compat": {
-          "description": "<code>:autofill</code>",
+          "description": "`:autofill`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:autofill",
           "spec_url": "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-autofill",
           "tags": [
@@ -56,7 +56,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/backdrop.json b/css/selectors/backdrop.json
index df9ee0e8a1469d..c167086245a2f9 100644
--- a/css/selectors/backdrop.json
+++ b/css/selectors/backdrop.json
@@ -3,9 +3,12 @@
     "selectors": {
       "backdrop": {
         "__compat": {
-          "description": "<code>::backdrop</code>",
+          "description": "`::backdrop`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::backdrop",
           "spec_url": "https://drafts.csswg.org/css-position-4/#backdrop",
+          "tags": [
+            "web-features:backdrop"
+          ],
           "support": {
             "chrome": [
               {
@@ -43,7 +46,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -53,9 +57,9 @@
         },
         "dialog": {
           "__compat": {
-            "description": "Support on <code>dialog</code> elements",
+            "description": "Support on `dialog` elements",
             "tags": [
-              "web-features:dialog"
+              "web-features:backdrop"
             ],
             "support": {
               "chrome": {
@@ -78,7 +82,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -116,7 +121,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -128,6 +134,9 @@
         "inherit_from_originating_element": {
           "__compat": {
             "description": "Backdrop elements inherit their values from its originating element",
+            "tags": [
+              "web-features:backdrop"
+            ],
             "support": {
               "chrome": {
                 "version_added": "122",
@@ -152,7 +161,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -188,7 +198,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/before.json b/css/selectors/before.json
index 387223def50fba..ac141379ab6cb1 100644
--- a/css/selectors/before.json
+++ b/css/selectors/before.json
@@ -3,9 +3,12 @@
     "selectors": {
       "before": {
         "__compat": {
-          "description": "<code>::before</code>",
+          "description": "`::before`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::before",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#generated-content",
+          "tags": [
+            "web-features:before-after"
+          ],
           "support": {
             "chrome": [
               {
@@ -30,8 +33,8 @@
               {
                 "version_added": "1.5",
                 "notes": [
-                  "Before Firefox 57, Firefox had a bug where <code>::before</code> pseudo-elements were still generated, even if the <a href='https://developer.mozilla.org/docs/Web/CSS/content'><code>content</code></a> property value were set to <code>normal</code> or <code>none</code>.",
-                  "Before Firefox 3.5, only the CSS level 2 behavior of <code>:before</code> was supported, which disallowed <a href='https://developer.mozilla.org/docs/Web/CSS/position'><code>position</code></a>, <a href='https://developer.mozilla.org/docs/Web/CSS/float'><code>float</code></a>, <code>list-style-*</code> and some <code>display</code> properties."
+                  "Before Firefox 57, Firefox had a bug where `::before` pseudo-elements were still generated, even if the [`content`](https://developer.mozilla.org/docs/Web/CSS/content) property value were set to `normal` or `none`.",
+                  "Before Firefox 3.5, only the CSS level 2 behavior of `:before` was supported, which disallowed [`position`](https://developer.mozilla.org/docs/Web/CSS/position), [`float`](https://developer.mozilla.org/docs/Web/CSS/float), `list-style-*` and some `display` properties."
                 ]
               },
               {
@@ -42,7 +45,7 @@
             "firefox_android": [
               {
                 "version_added": "4",
-                "notes": "Before Firefox 57, Firefox had a bug where <code>::before</code> pseudo-elements were still generated, even if the <a href='https://developer.mozilla.org/docs/Web/CSS/content'><code>content</code></a> property value were set to <code>normal</code> or <code>none</code>."
+                "notes": "Before Firefox 57, Firefox had a bug where `::before` pseudo-elements were still generated, even if the [`content`](https://developer.mozilla.org/docs/Web/CSS/content) property value were set to `normal` or `none`."
               },
               {
                 "alternative_name": ":before",
@@ -104,7 +107,8 @@
                 "alternative_name": ":before",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -115,6 +119,9 @@
         "animation_and_transition_support": {
           "__compat": {
             "description": "Animation and transition support",
+            "tags": [
+              "web-features:before-after"
+            ],
             "support": {
               "chrome": {
                 "version_added": "26"
@@ -134,11 +141,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤10.1"
+                "version_added": "7"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/buffering.json b/css/selectors/buffering.json
index 73bfed57db118e..559b97ca352cf3 100644
--- a/css/selectors/buffering.json
+++ b/css/selectors/buffering.json
@@ -3,7 +3,7 @@
     "selectors": {
       "buffering": {
         "__compat": {
-          "description": "<code>:buffering</code>",
+          "description": "`:buffering`",
           "spec_url": [
             "https://drafts.csswg.org/selectors/#selectordef-buffering",
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-buffering"
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/checked.json b/css/selectors/checked.json
index 012940cf57b0d7..dca54297026f89 100644
--- a/css/selectors/checked.json
+++ b/css/selectors/checked.json
@@ -3,34 +3,37 @@
     "selectors": {
       "checked": {
         "__compat": {
-          "description": "<code>:checked</code>",
+          "description": "`:checked`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:checked",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-checked",
             "https://drafts.csswg.org/selectors/#checked"
           ],
+          "tags": [
+            "web-features:input-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "On macOS, styling <code>&lt;option&gt;</code> elements has no effect."
+              "notes": "On macOS, styling `&lt;option&gt;` elements has no effect."
             },
             "chrome_android": {
               "version_added": "18"
             },
             "edge": {
               "version_added": "12",
-              "notes": "On macOS, styling <code>&lt;option&gt;</code> elements has no effect."
+              "notes": "On macOS, styling `&lt;option&gt;` elements has no effect."
             },
             "firefox": {
               "version_added": "1",
               "notes": [
-                "From Firefox 56, <code>&lt;option&gt;</code> elements cannot be styled.",
-                "On macOS, styling <code>&lt;option&gt;</code> elements has no effect."
+                "From Firefox 56, `&lt;option&gt;` elements cannot be styled.",
+                "On macOS, styling `&lt;option&gt;` elements has no effect."
               ]
             },
             "firefox_android": {
               "version_added": "4",
-              "notes": "From Firefox 56, <code>&lt;option&gt;</code> elements cannot be styled."
+              "notes": "From Firefox 56, `&lt;option&gt;` elements cannot be styled."
             },
             "ie": {
               "version_added": "9"
@@ -38,20 +41,21 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "9",
-              "notes": "On macOS, styling <code>&lt;option&gt;</code> elements has no effect."
+              "notes": "On macOS, styling `&lt;option&gt;` elements has no effect."
             },
             "opera_android": {
               "version_added": "10.1"
             },
             "safari": {
               "version_added": "3.1",
-              "notes": "Styling <code>&lt;option&gt;</code> elements has no effect."
+              "notes": "Styling `&lt;option&gt;` elements has no effect."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/child.json b/css/selectors/child.json
index b0889b74cd71a4..4c48b2eb18830b 100644
--- a/css/selectors/child.json
+++ b/css/selectors/child.json
@@ -3,9 +3,12 @@
     "selectors": {
       "child": {
         "__compat": {
-          "description": "Child combinator (<code>A &gt; B</code>)",
+          "description": "Child combinator (`A &gt; B`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Child_combinator",
           "spec_url": "https://drafts.csswg.org/selectors/#child-combinators",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,7 +39,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/class.json b/css/selectors/class.json
index 639d2b3d54f2a6..97d2f57e977c82 100644
--- a/css/selectors/class.json
+++ b/css/selectors/class.json
@@ -3,9 +3,12 @@
     "selectors": {
       "class": {
         "__compat": {
-          "description": "Class selector (<code>.className</code>)",
+          "description": "Class selector (`.className`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Class_selectors",
           "spec_url": "https://drafts.csswg.org/selectors/#class-html",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/closed.json b/css/selectors/closed.json
index d11352b5a98a38..4dfe93b3f59c43 100644
--- a/css/selectors/closed.json
+++ b/css/selectors/closed.json
@@ -3,8 +3,11 @@
     "selectors": {
       "closed": {
         "__compat": {
-          "description": "<code>:closed</code>",
+          "description": "`:closed`",
           "spec_url": "https://drafts.csswg.org/selectors-4/#open-state",
+          "tags": [
+            "web-features:open-closed"
+          ],
           "support": {
             "chrome": {
               "version_added": "114",
@@ -29,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/cue.json b/css/selectors/cue.json
index 312b61bd224cc2..03467a21cc1bb9 100644
--- a/css/selectors/cue.json
+++ b/css/selectors/cue.json
@@ -3,7 +3,7 @@
     "selectors": {
       "cue": {
         "__compat": {
-          "description": "<code>::cue</code>",
+          "description": "`::cue`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::cue",
           "spec_url": "https://w3c.github.io/webvtt/#the-cue-pseudo-element",
           "support": {
@@ -14,7 +14,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "55",
-              "notes": "From Firefox 69, only allowed properties apply to the <code>::cue</code> pseudo-element with no argument. See <a href='https://developer.mozilla.org/docs/Web/CSS/::cue#Permitted_properties'>Permitted properties</a> for a list of the allowed properties."
+              "notes": "From Firefox 69, only allowed properties apply to the `::cue` pseudo-element with no argument. See [Permitted properties](https://developer.mozilla.org/docs/Web/CSS/::cue#Permitted_properties) for a list of the allowed properties."
             },
             "firefox_android": {
               "version_added": "55"
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,7 +41,7 @@
         },
         "selector_argument": {
           "__compat": {
-            "description": "<code>::cue(&lt;selector&gt;)</code>",
+            "description": "`::cue(&lt;selector&gt;)`",
             "support": {
               "chrome": {
                 "version_added": "26"
@@ -62,7 +63,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/default.json b/css/selectors/default.json
index f5410394d9ca82..45b2e74445d6a5 100644
--- a/css/selectors/default.json
+++ b/css/selectors/default.json
@@ -3,7 +3,7 @@
     "selectors": {
       "default": {
         "__compat": {
-          "description": "<code>:default</code>",
+          "description": "`:default`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:default",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-default",
@@ -41,7 +41,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/defined.json b/css/selectors/defined.json
index 580cbf11d6b8d5..5814bce96288bc 100644
--- a/css/selectors/defined.json
+++ b/css/selectors/defined.json
@@ -3,7 +3,7 @@
     "selectors": {
       "defined": {
         "__compat": {
-          "description": "<code>:defined</code>",
+          "description": "`:defined`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:defined",
           "spec_url": "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-defined",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/descendant.json b/css/selectors/descendant.json
index 80174cf02163ad..6829ab99e2179b 100644
--- a/css/selectors/descendant.json
+++ b/css/selectors/descendant.json
@@ -3,9 +3,12 @@
     "selectors": {
       "descendant": {
         "__compat": {
-          "description": "Descendant combinator (<code>A B</code>)",
+          "description": "Descendant combinator (`A B`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Descendant_combinator",
           "spec_url": "https://drafts.csswg.org/selectors/#descendant-combinators",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/column.json b/css/selectors/details-content.json
similarity index 67%
rename from css/selectors/column.json
rename to css/selectors/details-content.json
index 357b27d25c514b..28554e3f2bdf84 100644
--- a/css/selectors/column.json
+++ b/css/selectors/details-content.json
@@ -1,20 +1,21 @@
 {
   "css": {
     "selectors": {
-      "column": {
+      "details-content": {
         "__compat": {
-          "description": "Column combinator (<code>A || B</code>)",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Column_combinator",
-          "spec_url": "https://drafts.csswg.org/selectors/#the-column-combinator",
+          "description": "`::details-content`",
+          "spec_url": "https://drafts.csswg.org/css-pseudo-4/#details-content-pseudo",
+          "tags": [
+            "web-features:details-content"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "131"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1605558"
+              "version_added": false
             },
             "firefox_android": "mirror",
             "ie": {
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/dir.json b/css/selectors/dir.json
index c9d51ea1ceb90d..c3b883c1bd003b 100644
--- a/css/selectors/dir.json
+++ b/css/selectors/dir.json
@@ -3,7 +3,7 @@
     "selectors": {
       "dir": {
         "__compat": {
-          "description": "<code>:dir()</code>",
+          "description": "`:dir()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:dir",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-ltr",
@@ -40,7 +40,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/disabled.json b/css/selectors/disabled.json
index 4a1ccafb7f933a..8938cb3ba4e4dc 100644
--- a/css/selectors/disabled.json
+++ b/css/selectors/disabled.json
@@ -3,12 +3,15 @@
     "selectors": {
       "disabled": {
         "__compat": {
-          "description": "<code>:disabled</code>",
+          "description": "`:disabled`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:disabled",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-disabled",
             "https://drafts.csswg.org/selectors/#enableddisabled"
           ],
+          "tags": [
+            "web-features:input-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -16,7 +19,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Before Edge 79, Edge did not recognize <code>:disabled</code> on the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/fieldset'><code>&lt;fieldset&gt;</code></a> element."
+              "notes": "Before Edge 79, Edge did not recognize `:disabled` on the [`&lt;fieldset&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/fieldset) element."
             },
             "firefox": {
               "version_added": "1"
@@ -24,7 +27,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "9",
-              "notes": "Internet Explorer does not recognize <code>:disabled</code> on the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/fieldset'><code>&lt;fieldset&gt;</code></a> element."
+              "notes": "Internet Explorer does not recognize `:disabled` on the [`&lt;fieldset&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/fieldset) element."
             },
             "oculus": "mirror",
             "opera": {
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/empty.json b/css/selectors/empty.json
index ad505c5a3b0a18..80a31e88ab7719 100644
--- a/css/selectors/empty.json
+++ b/css/selectors/empty.json
@@ -3,9 +3,12 @@
     "selectors": {
       "empty": {
         "__compat": {
-          "description": "<code>:empty</code>",
+          "description": "`:empty`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:empty",
           "spec_url": "https://drafts.csswg.org/selectors/#the-empty-pseudo",
+          "tags": [
+            "web-features:empty"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "matches_whitespace": {
           "__compat": {
             "description": "Matches elements with whitespace",
+            "tags": [
+              "web-features:empty"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -68,7 +75,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/enabled.json b/css/selectors/enabled.json
index 0c1e1a4c91e071..c9c93db78a57f1 100644
--- a/css/selectors/enabled.json
+++ b/css/selectors/enabled.json
@@ -3,12 +3,15 @@
     "selectors": {
       "enabled": {
         "__compat": {
-          "description": "<code>:enabled</code>",
+          "description": "`:enabled`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:enabled",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-enabled",
             "https://drafts.csswg.org/selectors/#enableddisabled"
           ],
+          "tags": [
+            "web-features:input-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -38,7 +41,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/file-selector-button.json b/css/selectors/file-selector-button.json
index 3b20e2a0cfbfd8..bb8d14d592df14 100644
--- a/css/selectors/file-selector-button.json
+++ b/css/selectors/file-selector-button.json
@@ -3,9 +3,12 @@
     "selectors": {
       "file-selector-button": {
         "__compat": {
-          "description": "<code>::file-selector-button</code>",
+          "description": "`::file-selector-button`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::file-selector-button",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#file-selector-button-pseudo",
+          "tags": [
+            "web-features:file-selector-button"
+          ],
           "support": {
             "chrome": [
               {
@@ -61,7 +64,8 @@
               }
             ],
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/first-child.json b/css/selectors/first-child.json
index 5ddc8cca24dfe7..66ac644444438b 100644
--- a/css/selectors/first-child.json
+++ b/css/selectors/first-child.json
@@ -3,9 +3,12 @@
     "selectors": {
       "first-child": {
         "__compat": {
-          "description": "<code>:first-child</code>",
+          "description": "`:first-child`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:first-child",
           "spec_url": "https://drafts.csswg.org/selectors/#first-child-pseudo",
+          "tags": [
+            "web-features:nth-child"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -21,8 +24,8 @@
             "ie": {
               "version_added": "7",
               "notes": [
-                "Internet Explorer 7 doesn't update <code>:first-child</code> styles when elements are added dynamically.",
-                "In Internet Explorer 8, if an element is inserted dynamically by clicking on a link, then the <code>:first-child</code> style isn't applied until the link loses focus."
+                "Internet Explorer 7 doesn't update `:first-child` styles when elements are added dynamically.",
+                "In Internet Explorer 8, if an element is inserted dynamically by clicking on a link, then the `:first-child` style isn't applied until the link loses focus."
               ]
             },
             "oculus": "mirror",
@@ -41,7 +44,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -52,6 +56,9 @@
         "no_parent_required": {
           "__compat": {
             "description": "Matches elements with no parent",
+            "tags": [
+              "web-features:nth-child"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -73,7 +80,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/first-letter.json b/css/selectors/first-letter.json
index 7bf531b57ffa5f..c2b8be7e57913b 100644
--- a/css/selectors/first-letter.json
+++ b/css/selectors/first-letter.json
@@ -3,9 +3,12 @@
     "selectors": {
       "first-letter": {
         "__compat": {
-          "description": "<code>::first-letter</code>",
+          "description": "`::first-letter`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::first-letter",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#first-letter-pseudo",
+          "tags": [
+            "web-features:first-letter"
+          ],
           "support": {
             "chrome": [
               {
@@ -83,7 +86,8 @@
                 "alternative_name": ":first-letter",
                 "version_added": "37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +97,10 @@
         },
         "dutch_ij_digraph": {
           "__compat": {
-            "description": "Support for the Dutch digraph <code>IJ</code>",
+            "description": "Support for the Dutch digraph `IJ`",
+            "tags": [
+              "web-features:first-letter"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -115,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -126,7 +134,10 @@
         },
         "svg_text_element": {
           "__compat": {
-            "description": "Support on SVG <code>&lt;text&gt;</code> element",
+            "description": "Support on SVG `&lt;text&gt;` element",
+            "tags": [
+              "web-features:first-letter"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -148,7 +159,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/first-line.json b/css/selectors/first-line.json
index 6fd5a5d92cd535..b289c048968726 100644
--- a/css/selectors/first-line.json
+++ b/css/selectors/first-line.json
@@ -3,19 +3,22 @@
     "selectors": {
       "first-line": {
         "__compat": {
-          "description": "<code>::first-line</code>",
+          "description": "`::first-line`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::first-line",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#first-line-pseudo",
+          "tags": [
+            "web-features:first-line"
+          ],
           "support": {
             "chrome": [
               {
                 "version_added": "1",
-                "notes": "Before Chrome 62, the <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work on <code>::first-line</code> pseudo-elements. See <a href='https://crbug.com/129669'>bug 129669</a>."
+                "notes": "Before Chrome 62, the [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work on `::first-line` pseudo-elements. See [bug 40214861](https://crbug.com/40214861)."
               },
               {
                 "alternative_name": ":first-line",
                 "version_added": "1",
-                "notes": "Before Chrome 62, the <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work on <code>::first-line</code> pseudo-elements. See <a href='https://crbug.com/129669'>bug 129669</a>."
+                "notes": "Before Chrome 62, the [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work on `::first-line` pseudo-elements. See [bug 40214861](https://crbug.com/40214861)."
               }
             ],
             "chrome_android": "mirror",
@@ -51,34 +54,34 @@
             "opera": [
               {
                 "version_added": "7",
-                "notes": "From Opera 15 to Opera 49 (exclusive), the <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work on <code>::first-line</code> or <code>:first-line</code> pseudo-elements. See <a href='https://crbug.com/129669'>bug 129669</a>."
+                "notes": "From Opera 15 to Opera 49 (exclusive), the [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work on `::first-line` or `:first-line` pseudo-elements. See [bug 40214861](https://crbug.com/40214861)."
               },
               {
                 "alternative_name": ":first-line",
                 "version_added": "3.5",
-                "notes": "From Opera 15 to Opera 49 (exclusive), the <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work on <code>::first-line</code> or <code>:first-line</code> pseudo-elements. See <a href='https://crbug.com/129669'>bug 129669</a>."
+                "notes": "From Opera 15 to Opera 49 (exclusive), the [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work on `::first-line` or `:first-line` pseudo-elements. See [bug 40214861](https://crbug.com/40214861)."
               }
             ],
             "opera_android": [
               {
                 "version_added": "10.1",
-                "notes": "From Opera 15 to Opera 49 (exclusive), the <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work on <code>::first-line</code> or <code>:first-line</code> pseudo-elements. See <a href='https://crbug.com/129669'>bug 129669</a>."
+                "notes": "From Opera 15 to Opera 49 (exclusive), the [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work on `::first-line` or `:first-line` pseudo-elements. See [bug 40214861](https://crbug.com/40214861)."
               },
               {
                 "alternative_name": ":first-line",
                 "version_added": "10.1",
-                "notes": "From Opera 15 to Opera 49 (exclusive), the <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work on <code>::first-line</code> or <code>:first-line</code> pseudo-elements. See <a href='https://crbug.com/129669'>bug 129669</a>."
+                "notes": "From Opera 15 to Opera 49 (exclusive), the [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work on `::first-line` or `:first-line` pseudo-elements. See [bug 40214861](https://crbug.com/40214861)."
               }
             ],
             "safari": [
               {
                 "version_added": "1",
-                "notes": "The <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work for <code>::first-line</code> or <code>:first-line</code> pseudo-elements. See <a href='https://webkit.org/b/3409'>bug 3409</a>."
+                "notes": "The [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work for `::first-line` or `:first-line` pseudo-elements. See [bug 3409](https://webkit.org/b/3409)."
               },
               {
                 "alternative_name": ":first-line",
                 "version_added": "1",
-                "notes": "The <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work for <code>::first-line</code> or <code>:first-line</code> pseudo-elements. See <a href='https://webkit.org/b/3409'>bug 3409</a>."
+                "notes": "The [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work for `::first-line` or `:first-line` pseudo-elements. See [bug 3409](https://webkit.org/b/3409)."
               }
             ],
             "safari_ios": "mirror",
@@ -86,14 +89,15 @@
             "webview_android": [
               {
                 "version_added": "≤37",
-                "notes": "Before WebView 62, the <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work on <code>::first-line</code> pseudo-elements. See <a href='https://crbug.com/129669'>bug 129669</a>."
+                "notes": "Before WebView 62, the [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work on `::first-line` pseudo-elements. See [bug 40214861](https://crbug.com/40214861)."
               },
               {
                 "alternative_name": ":first-line",
                 "version_added": "≤37",
-                "notes": "Before WebView 62, the <a href='https://developer.mozilla.org/docs/Web/CSS/text-transform'><code>text-transform</code></a> property does not work on <code>::first-line</code> pseudo-elements. See <a href='https://crbug.com/129669'>bug 129669</a>."
+                "notes": "Before WebView 62, the [`text-transform`](https://developer.mozilla.org/docs/Web/CSS/text-transform) property does not work on `::first-line` pseudo-elements. See [bug 40214861](https://crbug.com/40214861)."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +107,10 @@
         },
         "svg_text_element": {
           "__compat": {
-            "description": "Support on SVG <code>&lt;text&gt;</code> element",
+            "description": "Support on SVG `&lt;text&gt;` element",
+            "tags": [
+              "web-features:first-line"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -125,7 +132,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/first-of-type.json b/css/selectors/first-of-type.json
index 27260c0642bc2f..a96729b1108a7e 100644
--- a/css/selectors/first-of-type.json
+++ b/css/selectors/first-of-type.json
@@ -3,9 +3,12 @@
     "selectors": {
       "first-of-type": {
         "__compat": {
-          "description": "<code>:first-of-type</code>",
+          "description": "`:first-of-type`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:first-of-type",
           "spec_url": "https://drafts.csswg.org/selectors/#first-of-type-pseudo",
+          "tags": [
+            "web-features:nth-of-type"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -37,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/first.json b/css/selectors/first.json
index 0082b8bfab85a1..07c9666c04b281 100644
--- a/css/selectors/first.json
+++ b/css/selectors/first.json
@@ -3,9 +3,12 @@
     "selectors": {
       "first": {
         "__compat": {
-          "description": "First page pseudo-class (<code>:first</code>)",
+          "description": "First page pseudo-class (`:first`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:first",
           "spec_url": "https://drafts.csswg.org/css-page/#left-right-first",
+          "tags": [
+            "web-features:page-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "18"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/focus-visible.json b/css/selectors/focus-visible.json
index da9ed09523c44e..2c1cb175a37fc6 100644
--- a/css/selectors/focus-visible.json
+++ b/css/selectors/focus-visible.json
@@ -3,7 +3,7 @@
     "selectors": {
       "focus-visible": {
         "__compat": {
-          "description": "<code>:focus-visible</code>",
+          "description": "`:focus-visible`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:focus-visible",
           "spec_url": "https://drafts.csswg.org/selectors/#the-focus-visible-pseudo",
           "tags": [
@@ -36,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/focus-within.json b/css/selectors/focus-within.json
index c2b8bbff8f2059..b377f0438bb6f0 100644
--- a/css/selectors/focus-within.json
+++ b/css/selectors/focus-within.json
@@ -3,9 +3,12 @@
     "selectors": {
       "focus-within": {
         "__compat": {
-          "description": "<code>:focus-within</code>",
+          "description": "`:focus-within`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:focus-within",
           "spec_url": "https://drafts.csswg.org/selectors/#the-focus-within-pseudo",
+          "tags": [
+            "web-features:focus-within"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/focus.json b/css/selectors/focus.json
index ac909aceb3ee54..f07805948c6e8f 100644
--- a/css/selectors/focus.json
+++ b/css/selectors/focus.json
@@ -3,12 +3,15 @@
     "selectors": {
       "focus": {
         "__compat": {
-          "description": "<code>:focus</code>",
+          "description": "`:focus`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:focus",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-focus",
             "https://drafts.csswg.org/selectors/#focus-pseudo"
           ],
+          "tags": [
+            "web-features:user-action-pseudos"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/fullscreen.json b/css/selectors/fullscreen.json
index 4b1fe9f0848e8d..06e2391cc5b7cd 100644
--- a/css/selectors/fullscreen.json
+++ b/css/selectors/fullscreen.json
@@ -3,7 +3,7 @@
     "selectors": {
       "fullscreen": {
         "__compat": {
-          "description": "<code>:fullscreen</code>",
+          "description": "`:fullscreen`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:fullscreen",
           "spec_url": "https://fullscreen.spec.whatwg.org/#:fullscreen-pseudo-class",
           "tags": [
@@ -74,7 +74,8 @@
                 "alternative_name": ":-webkit-full-screen",
                 "version_added": "37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -112,7 +113,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/future.json b/css/selectors/future.json
index 0f71827fbcfccb..bff83516fd3330 100644
--- a/css/selectors/future.json
+++ b/css/selectors/future.json
@@ -3,9 +3,12 @@
     "selectors": {
       "future": {
         "__compat": {
-          "description": "<code>:future</code>",
+          "description": "`:future`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:future",
           "spec_url": "https://drafts.csswg.org/selectors/#the-future-pseudo",
+          "tags": [
+            "web-features:time-relative-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/grammar-error.json b/css/selectors/grammar-error.json
index aed3604cf8a4b1..6639019db4a8c5 100644
--- a/css/selectors/grammar-error.json
+++ b/css/selectors/grammar-error.json
@@ -3,7 +3,7 @@
     "selectors": {
       "grammar-error": {
         "__compat": {
-          "description": "<code>::grammar-error</code>",
+          "description": "`::grammar-error`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::grammar-error",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#selectordef-grammar-error",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Sec-CH-Save-Data.json b/css/selectors/has-slotted.json
similarity index 57%
rename from http/headers/Sec-CH-Save-Data.json
rename to css/selectors/has-slotted.json
index c83926dfba838a..9ed7e1958e42f0 100644
--- a/http/headers/Sec-CH-Save-Data.json
+++ b/css/selectors/has-slotted.json
@@ -1,17 +1,28 @@
 {
-  "http": {
-    "headers": {
-      "Sec-CH-Save-Data": {
+  "css": {
+    "selectors": {
+      "has-slotted": {
         "__compat": {
-          "description": "<code>Sec-CH-Save-Data</code> request header",
+          "description": "`:has-slotted`",
+          "spec_url": "https://drafts.csswg.org/css-scoping/#the-has-slotted-pseudo",
+          "tags": [
+            "web-features:slot"
+          ],
           "support": {
             "chrome": {
-              "version_added": "102"
+              "version_added": false
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": "preview",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.has-slotted-selector.enabled",
+                  "value_to_set": "true"
+                }
+              ]
             },
             "firefox_android": "mirror",
             "ie": {
@@ -25,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/has.json b/css/selectors/has.json
index 95b5868e2527e2..d7e04e9e8c6083 100644
--- a/css/selectors/has.json
+++ b/css/selectors/has.json
@@ -3,7 +3,7 @@
     "selectors": {
       "has": {
         "__compat": {
-          "description": "<code>:has()</code>",
+          "description": "`:has()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:has",
           "spec_url": "https://drafts.csswg.org/selectors/#relational",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/highlight.json b/css/selectors/highlight.json
index 6cf852f60fcbcc..1dfdf813f2f8cc 100644
--- a/css/selectors/highlight.json
+++ b/css/selectors/highlight.json
@@ -3,7 +3,7 @@
     "selectors": {
       "highlight": {
         "__compat": {
-          "description": "<code>::highlight()</code>",
+          "description": "`::highlight()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::highlight",
           "spec_url": "https://drafts.csswg.org/css-highlight-api/#custom-highlight-pseudo",
           "tags": [
@@ -19,7 +19,7 @@
               "version_added": "preview",
               "impl_url": "https://bugzil.la/1703961",
               "partial_implementation": true,
-              "notes": "Cannot yet be used with <code>text-decoration</code> and <code>text-shadow</code>."
+              "notes": "Cannot yet be used with `text-decoration` and `text-shadow`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -29,11 +29,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "17.2"
+              "version_added": "17.2",
+              "notes": "The style is ignored when combined with `user-select: none`. See [bug 278455](https://webkit.org/b/278455)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/host-context.json b/css/selectors/host-context.json
index ee777cd9baa412..93a32dfca6d39d 100644
--- a/css/selectors/host-context.json
+++ b/css/selectors/host-context.json
@@ -3,9 +3,12 @@
     "selectors": {
       "host-context": {
         "__compat": {
-          "description": "<code>:host-context()</code>",
+          "description": "`:host-context()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:host-context",
           "spec_url": "https://drafts.csswg.org/css-scoping/#host-selector",
+          "tags": [
+            "web-features:host-context"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/host.json b/css/selectors/host.json
index 7e227daac412a9..3b038f2f481398 100644
--- a/css/selectors/host.json
+++ b/css/selectors/host.json
@@ -3,9 +3,12 @@
     "selectors": {
       "host": {
         "__compat": {
-          "description": "<code>:host</code>",
+          "description": "`:host`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:host",
           "spec_url": "https://drafts.csswg.org/css-scoping/#host-selector",
+          "tags": [
+            "web-features:host"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/hostfunction.json b/css/selectors/hostfunction.json
index dfe96bc7018cf4..9419c582a5645c 100644
--- a/css/selectors/hostfunction.json
+++ b/css/selectors/hostfunction.json
@@ -3,9 +3,12 @@
     "selectors": {
       "hostfunction": {
         "__compat": {
-          "description": "<code>:host()</code>",
+          "description": "`:host()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:host_function",
           "spec_url": "https://drafts.csswg.org/css-scoping/#host-selector",
+          "tags": [
+            "web-features:host"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/hover.json b/css/selectors/hover.json
index aad75578b23a11..eb5da6e1999a53 100644
--- a/css/selectors/hover.json
+++ b/css/selectors/hover.json
@@ -3,12 +3,15 @@
     "selectors": {
       "hover": {
         "__compat": {
-          "description": "<code>:hover</code>",
+          "description": "`:hover`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:hover",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-hover",
             "https://drafts.csswg.org/selectors/#the-hover-pseudo"
           ],
+          "tags": [
+            "web-features:user-action-pseudos"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,10 +39,11 @@
             },
             "safari_ios": {
               "version_added": "1",
-              "notes": "As of Safari for iOS 7.1.2, tapping a <a href='https://developer.mozilla.org/docs/Web/Events/click#Safari_Mobile'>clickable element</a> causes the element to enter the <code>:hover</code> state. The element will remain in the <code>:hover</code> state until a different element has entered the <code>:hover</code> state."
+              "notes": "As of Safari for iOS 7.1.2, tapping a [clickable element](https://developer.mozilla.org/docs/Web/Events/click#Safari_Mobile) causes the element to enter the `:hover` state. The element will remain in the `:hover` state until a different element has entered the `:hover` state."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,7 +53,7 @@
         },
         "a_elements": {
           "__compat": {
-            "description": "<code>&lt;a&gt;</code> element support",
+            "description": "`&lt;a&gt;` element support",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -79,7 +83,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -98,7 +103,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "In Edge, hovering over an element and then scrolling up or down without moving the pointer will leave the element in the <code>:hover</code> state until the pointer is moved. See <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/5381673/'>bug 5381673</a>."
+                "notes": "In Edge, hovering over an element and then scrolling up or down without moving the pointer will leave the element in the `:hover` state until the pointer is moved. See [bug 5381673](https://developer.microsoft.com/microsoft-edge/platform/issues/5381673/)."
               },
               "firefox": {
                 "version_added": "1"
@@ -107,8 +112,8 @@
               "ie": {
                 "version_added": "7",
                 "notes": [
-                  "In Internet Explorer 8 to Internet Explorer 11, hovering over an element and then scrolling up or down without moving the pointer will leave the element in the <code>:hover</code> state until the pointer is moved. See <a href='https://connect.microsoft.com/IE/feedbackdetail/view/926665'>bug 926665</a>.",
-                  "In Internet Explorer 9 (and possibly earlier), if a <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>&lt;table&gt;</code></a> has a parent with a non-<code>auto</code> <a href='https://developer.mozilla.org/docs/Web/CSS/width'><code>width</code></a>, <a href='https://developer.mozilla.org/docs/Web/CSS/overflow-x'><code>overflow-x</code></a><code>: auto;</code>, the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>&lt;table&gt;</code></a> has enough content to horizontally overflow its parent, and there are <a href='https://developer.mozilla.org/docs/Web/CSS/:hover'><code>:hover</code></a> styles set on elements within the table, then hovering over said elements will cause the <a href='https://developer.mozilla.org/docs/Web/HTML/Element/table'><code>&lt;table&gt;</code></a>'s height to increase. See <a href='https://output.jsbin.com/diwiqe'>a live demo that triggers the bug</a>. One workaround for the bug is to set <code>min-height: 0%;</code> (the <code>%</code> unit must be specified, since unitless and <code>px</code> don't work) on the <code>&lt;table&gt;</code>'s parent element."
+                  "In Internet Explorer 8 to Internet Explorer 11, hovering over an element and then scrolling up or down without moving the pointer will leave the element in the `:hover` state until the pointer is moved. See [bug 926665](https://connect.microsoft.com/IE/feedbackdetail/view/926665).",
+                  "In Internet Explorer 9 (and possibly earlier), if a [`&lt;table&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/table) has a parent with a non-`auto` [`width`](https://developer.mozilla.org/docs/Web/CSS/width), [`overflow-x`](https://developer.mozilla.org/docs/Web/CSS/overflow-x)`: auto;`, the [`&lt;table&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/table) has enough content to horizontally overflow its parent, and there are [`:hover`](https://developer.mozilla.org/docs/Web/CSS/:hover) styles set on elements within the table, then hovering over said elements will cause the [`&lt;table&gt;`](https://developer.mozilla.org/docs/Web/HTML/Element/table)'s height to increase. See [a live demo that triggers the bug](https://output.jsbin.com/diwiqe). One workaround for the bug is to set `min-height: 0%;` (the `%` unit must be specified, since unitless and `px` don't work) on the `&lt;table&gt;`'s parent element."
                 ]
               },
               "oculus": "mirror",
@@ -125,7 +130,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/id.json b/css/selectors/id.json
index 5057ddf6aa0606..bafe361780b1a1 100644
--- a/css/selectors/id.json
+++ b/css/selectors/id.json
@@ -3,9 +3,12 @@
     "selectors": {
       "id": {
         "__compat": {
-          "description": "ID selector (<code>#idName</code>)",
+          "description": "ID selector (`#idName`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/ID_selectors",
           "spec_url": "https://drafts.csswg.org/selectors/#id-selectors",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/in-range.json b/css/selectors/in-range.json
index 02a60bdd93eafb..51ca30aea8679b 100644
--- a/css/selectors/in-range.json
+++ b/css/selectors/in-range.json
@@ -3,16 +3,19 @@
     "selectors": {
       "in-range": {
         "__compat": {
-          "description": "<code>:in-range</code>",
+          "description": "`:in-range`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:in-range",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-in-range",
             "https://drafts.csswg.org/selectors/#in-range-pseudo"
           ],
+          "tags": [
+            "web-features:form-validity-pseudos"
+          ],
           "support": {
             "chrome": {
               "version_added": "10",
-              "notes": "Before Chrome 52, <code>:in-range</code> matched disabled and read-only inputs (see <a href='https://crbug.com/602568'>bug 602568</a>). In Chrome 52, it was changed to only match enabled read-write inputs."
+              "notes": "Before Chrome 52, `:in-range` matched disabled and read-only inputs (see [bug 41248615](https://crbug.com/41248615)). In Chrome 52, it was changed to only match enabled read-write inputs."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -20,7 +23,7 @@
             },
             "firefox": {
               "version_added": "29",
-              "notes": "Before Firefox 50, <code>:in-range</code> matched disabled and read-only inputs (see <a href='https://bugzil.la/1264157'>bug 1264157</a>). In Firefox 50, it was changed to only match enabled read-write inputs."
+              "notes": "Before Firefox 50, `:in-range` matched disabled and read-only inputs (see [bug 1264157](https://bugzil.la/1264157)). In Firefox 50, it was changed to only match enabled read-write inputs."
             },
             "firefox_android": {
               "version_added": "16"
@@ -31,25 +34,26 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "11",
-              "notes": "Before Opera 39, <code>:in-range</code> matched disabled and read-only inputs (see <a href='https://crbug.com/602568'>bug 602568</a>). In Opera 39, it was changed to only match enabled read-write inputs."
+              "notes": "Before Opera 39, `:in-range` matched disabled and read-only inputs (see [bug 41248615](https://crbug.com/41248615)). In Opera 39, it was changed to only match enabled read-write inputs."
             },
             "opera_android": {
               "version_added": "11",
-              "notes": "Before Opera 39, <code>:in-range</code> matched disabled and read-only inputs (see <a href='https://crbug.com/602568'>bug 602568</a>). In Opera 39, it was changed to only match enabled read-write inputs."
+              "notes": "Before Opera 39, `:in-range` matched disabled and read-only inputs (see [bug 41248615](https://crbug.com/41248615)). In Opera 39, it was changed to only match enabled read-write inputs."
             },
             "safari": {
               "version_added": "5.1",
-              "notes": "In Safari, <code>:in-range</code> matched disabled and read-only inputs (see <a href='https://webkit.org/b/156530'>bug 156530</a>). It was later changed to only match enabled read-write inputs."
+              "notes": "In Safari, `:in-range` matched disabled and read-only inputs (see [bug 156530](https://webkit.org/b/156530)). It was later changed to only match enabled read-write inputs."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": {
               "version_added": "1.0",
-              "notes": "Before version 6.0, <code>:in-range</code> matched disabled and read-only inputs (see <a href='https://crbug.com/602568'>bug 602568</a>). In version 6.0, it was changed to only match enabled read-write inputs."
+              "notes": "Before version 6.0, `:in-range` matched disabled and read-only inputs (see [bug 41248615](https://crbug.com/41248615)). In version 6.0, it was changed to only match enabled read-write inputs."
             },
             "webview_android": {
               "version_added": "2.2",
-              "notes": "Before version 52, <code>:in-range</code> matched disabled and read-only inputs (see <a href='https://crbug.com/602568'>bug 602568</a>). In version 52, it was changed to only match enabled read-write inputs."
-            }
+              "notes": "Before version 52, `:in-range` matched disabled and read-only inputs (see [bug 41248615](https://crbug.com/41248615)). In version 52, it was changed to only match enabled read-write inputs."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/indeterminate.json b/css/selectors/indeterminate.json
index 99fba6b219d976..316953fe450460 100644
--- a/css/selectors/indeterminate.json
+++ b/css/selectors/indeterminate.json
@@ -3,7 +3,7 @@
     "selectors": {
       "indeterminate": {
         "__compat": {
-          "description": "<code>:indeterminate</code>",
+          "description": "`:indeterminate`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:indeterminate",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-indeterminate",
@@ -43,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -53,7 +54,7 @@
         },
         "checkbox": {
           "__compat": {
-            "description": "Applies to <code>&lt;input type=&quot;checkbox&quot;&gt;</code> elements",
+            "description": "Applies to `&lt;input type=&quot;checkbox&quot;&gt;` elements",
             "tags": [
               "web-features:indeterminate"
             ],
@@ -88,7 +89,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -99,7 +101,7 @@
         },
         "progress": {
           "__compat": {
-            "description": "Applies to <code>&lt;progress&gt;</code> elements",
+            "description": "Applies to `&lt;progress&gt;` elements",
             "tags": [
               "web-features:indeterminate"
             ],
@@ -128,7 +130,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -139,7 +142,7 @@
         },
         "radio": {
           "__compat": {
-            "description": "Applies to <code>&lt;input type=&quot;radio&quot;&gt;</code> elements",
+            "description": "Applies to `&lt;input type=&quot;radio&quot;&gt;` elements",
             "tags": [
               "web-features:indeterminate"
             ],
@@ -164,7 +167,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/invalid.json b/css/selectors/invalid.json
index a23fb689accf10..c6b409dc471139 100644
--- a/css/selectors/invalid.json
+++ b/css/selectors/invalid.json
@@ -3,12 +3,15 @@
     "selectors": {
       "invalid": {
         "__compat": {
-          "description": "<code>:invalid</code>",
+          "description": "`:invalid`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:invalid",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-invalid",
             "https://drafts.csswg.org/selectors/#validity-pseudos"
           ],
+          "tags": [
+            "web-features:form-validity-pseudos"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -50,7 +54,10 @@
         },
         "form": {
           "__compat": {
-            "description": "Applies to <code>&lt;form&gt;</code> elements",
+            "description": "Applies to `&lt;form&gt;` elements",
+            "tags": [
+              "web-features:form-validity-pseudos"
+            ],
             "support": {
               "chrome": {
                 "version_added": "40"
@@ -72,7 +79,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/is.json b/css/selectors/is.json
index fb67d972d80c9b..86e065e12e25ef 100644
--- a/css/selectors/is.json
+++ b/css/selectors/is.json
@@ -3,7 +3,7 @@
     "selectors": {
       "is": {
         "__compat": {
-          "description": "<code>:is()</code>",
+          "description": "`:is()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:is",
           "spec_url": "https://drafts.csswg.org/selectors/#matches-pseudo",
           "tags": [
@@ -31,7 +31,7 @@
                 "version_added": "4",
                 "notes": [
                   "Doesn't support combinators.",
-                  "See <a href='https://bugzil.la/906353'>bug 906353</a>."
+                  "See [bug 906353](https://bugzil.la/906353)."
                 ]
               }
             ],
@@ -93,7 +93,8 @@
                 "version_added": "≤37",
                 "notes": "Doesn't support combinators."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -129,7 +130,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/lang.json b/css/selectors/lang.json
index 61e9d64ae63976..9e6c52c7b36648 100644
--- a/css/selectors/lang.json
+++ b/css/selectors/lang.json
@@ -3,9 +3,12 @@
     "selectors": {
       "lang": {
         "__compat": {
-          "description": "<code>:lang()</code>",
+          "description": "`:lang()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:lang",
           "spec_url": "https://drafts.csswg.org/selectors/#lang-pseudo",
+          "tags": [
+            "web-features:lang"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +47,10 @@
         },
         "argument_list": {
           "__compat": {
-            "description": "Comma-separated list of language codes as <code>:lang(A, B)</code>",
+            "description": "Comma-separated list of language codes as `:lang(A, B)`",
+            "tags": [
+              "web-features:lang"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,7 +84,10 @@
         },
         "wildcards": {
           "__compat": {
-            "description": "Matching language codes with wildcards as <code>:lang(*-Latn)</code>",
+            "description": "Matching language codes with wildcards as `:lang(*-Latn)`",
+            "tags": [
+              "web-features:lang"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -98,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/last-child.json b/css/selectors/last-child.json
index 8ae39c2f4961e3..acf5c40db4ba6e 100644
--- a/css/selectors/last-child.json
+++ b/css/selectors/last-child.json
@@ -3,9 +3,12 @@
     "selectors": {
       "last-child": {
         "__compat": {
-          "description": "<code>:last-child</code>",
+          "description": "`:last-child`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:last-child",
           "spec_url": "https://drafts.csswg.org/selectors/#the-last-child-pseudo",
+          "tags": [
+            "web-features:nth-child"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "no_parent_required": {
           "__compat": {
             "description": "Matches elements with no parent",
+            "tags": [
+              "web-features:nth-child"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/last-of-type.json b/css/selectors/last-of-type.json
index ce525dd45ff6e2..8227a3a3b21a37 100644
--- a/css/selectors/last-of-type.json
+++ b/css/selectors/last-of-type.json
@@ -3,9 +3,12 @@
     "selectors": {
       "last-of-type": {
         "__compat": {
-          "description": "<code>:last-of-type</code>",
+          "description": "`:last-of-type`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:last-of-type",
           "spec_url": "https://drafts.csswg.org/selectors/#last-of-type-pseudo",
+          "tags": [
+            "web-features:nth-of-type"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -37,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/left.json b/css/selectors/left.json
index cf124960d14d85..cab68bbf1c36d8 100644
--- a/css/selectors/left.json
+++ b/css/selectors/left.json
@@ -3,9 +3,12 @@
     "selectors": {
       "left": {
         "__compat": {
-          "description": "Left-hand page pseudo-class (<code>:left</code>)",
+          "description": "Left-hand page pseudo-class (`:left`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:left",
           "spec_url": "https://drafts.csswg.org/css-page/#left-right-first",
+          "tags": [
+            "web-features:page-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/link.json b/css/selectors/link.json
index 9142bbaff85a42..b87f1cab7da0bb 100644
--- a/css/selectors/link.json
+++ b/css/selectors/link.json
@@ -3,12 +3,15 @@
     "selectors": {
       "link": {
         "__compat": {
-          "description": "<code>:link</code>",
+          "description": "`:link`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:link",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-link",
             "https://drafts.csswg.org/selectors/#link"
           ],
+          "tags": [
+            "web-features:link-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -38,7 +41,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1.5"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,7 +52,10 @@
         },
         "not_match_link": {
           "__compat": {
-            "description": "<code>:link</code> privacy: selector does not match <code>&lt;link&gt;</code> elements",
+            "description": "`:link` privacy: selector does not match `&lt;link&gt;` elements",
+            "tags": [
+              "web-features:link-selectors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -76,7 +83,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "1.5"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/list.json b/css/selectors/list.json
index 127d0351eefc64..5b22a1c6f4845d 100644
--- a/css/selectors/list.json
+++ b/css/selectors/list.json
@@ -3,9 +3,12 @@
     "selectors": {
       "list": {
         "__compat": {
-          "description": "Selector list (<code>,</code>)",
+          "description": "Selector list (`,`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Selector_list",
           "spec_url": "https://drafts.csswg.org/selectors/#grouping",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/marker.json b/css/selectors/marker.json
index 9448b4bc09aeac..fa1deb59231ed8 100644
--- a/css/selectors/marker.json
+++ b/css/selectors/marker.json
@@ -3,9 +3,12 @@
     "selectors": {
       "marker": {
         "__compat": {
-          "description": "<code>::marker</code>",
+          "description": "`::marker`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::marker",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#marker-pseudo",
+          "tags": [
+            "web-features:marker"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -25,11 +28,12 @@
             "safari": {
               "version_added": "11.1",
               "partial_implementation": true,
-              "notes": "Safari support is limited to <code>color</code> and <code>font-size</code>. See <a href='https://webkit.org/b/204163'>bug 204163</a>."
+              "notes": "Safari support is limited to `color` and `font-size`. See [bug 204163](https://webkit.org/b/204163)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,9 @@
         "animation_and_transition_support": {
           "__compat": {
             "description": "Animation and transition support",
+            "tags": [
+              "web-features:marker"
+            ],
             "support": {
               "chrome": {
                 "version_added": "86"
@@ -61,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/modal.json b/css/selectors/modal.json
index 621df5ce84bc48..f60e84095331dc 100644
--- a/css/selectors/modal.json
+++ b/css/selectors/modal.json
@@ -3,7 +3,7 @@
     "selectors": {
       "modal": {
         "__compat": {
-          "description": "<code>:modal</code>",
+          "description": "`:modal`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:modal",
           "spec_url": "https://drafts.csswg.org/selectors/#modal-state",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/muted.json b/css/selectors/muted.json
index 7276913d2cfe58..d14347eae829ef 100644
--- a/css/selectors/muted.json
+++ b/css/selectors/muted.json
@@ -3,7 +3,7 @@
     "selectors": {
       "muted": {
         "__compat": {
-          "description": "<code>:muted</code>",
+          "description": "`:muted`",
           "spec_url": [
             "https://drafts.csswg.org/selectors/#selectordef-muted",
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-muted"
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/namespace.json b/css/selectors/namespace.json
index b0bf2a463a9c93..543a68d336a758 100644
--- a/css/selectors/namespace.json
+++ b/css/selectors/namespace.json
@@ -3,9 +3,12 @@
     "selectors": {
       "namespace": {
         "__compat": {
-          "description": "Namespace selector (<code>|</code>)",
+          "description": "Namespace selector (`|`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@namespace",
           "spec_url": "https://drafts.csswg.org/css-namespaces/#declaration",
+          "tags": [
+            "web-features:namespace"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/nesting.json b/css/selectors/nesting.json
index 1fdf10a11aad9b..dfc79a69e3b861 100644
--- a/css/selectors/nesting.json
+++ b/css/selectors/nesting.json
@@ -3,7 +3,7 @@
     "selectors": {
       "nesting": {
         "__compat": {
-          "description": "Nesting selector (<code>&amp;</code>)",
+          "description": "Nesting selector (`&amp;`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Nesting_selector",
           "spec_url": "https://drafts.csswg.org/css-nesting/#nest-selector",
           "tags": [
@@ -44,7 +44,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/next-sibling.json b/css/selectors/next-sibling.json
index bef7dfb208408f..c21c69e3cbd4f7 100644
--- a/css/selectors/next-sibling.json
+++ b/css/selectors/next-sibling.json
@@ -3,9 +3,12 @@
     "selectors": {
       "next-sibling": {
         "__compat": {
-          "description": "Next-sibling combinator (<code>A + B</code>)",
+          "description": "Next-sibling combinator (`A + B`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Next-sibling_combinator",
           "spec_url": "https://drafts.csswg.org/selectors/#adjacent-sibling-combinators",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/not.json b/css/selectors/not.json
index c4e0b66f341421..f8423366b01d16 100644
--- a/css/selectors/not.json
+++ b/css/selectors/not.json
@@ -3,9 +3,12 @@
     "selectors": {
       "not": {
         "__compat": {
-          "description": "Negation pseudo-class selector (<code>:not()</code>)",
+          "description": "Negation pseudo-class selector (`:not()`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:not",
           "spec_url": "https://drafts.csswg.org/selectors/#negation",
+          "tags": [
+            "web-features:not"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "selector_list": {
           "__compat": {
             "description": "Selector list argument",
+            "tags": [
+              "web-features:not"
+            ],
             "support": {
               "chrome": {
                 "version_added": "88"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/nth-child.json b/css/selectors/nth-child.json
index 205fa69a5deaff..49337419c4f366 100644
--- a/css/selectors/nth-child.json
+++ b/css/selectors/nth-child.json
@@ -3,7 +3,7 @@
     "selectors": {
       "nth-child": {
         "__compat": {
-          "description": "<code>:nth-child()</code>",
+          "description": "`:nth-child()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:nth-child",
           "spec_url": "https://drafts.csswg.org/selectors/#nth-child-pseudo",
           "tags": [
@@ -27,11 +27,11 @@
             "oculus": "mirror",
             "opera": {
               "version_added": "9.5",
-              "notes": "Before Opera 15, Opera does not handle dynamically inserted elements for <code>:nth-child()</code>."
+              "notes": "Before Opera 15, Opera does not handle dynamically inserted elements for `:nth-child()`."
             },
             "opera_android": {
               "version_added": "10.1",
-              "notes": "Before Opera 15, Opera does not handle dynamically inserted elements for <code>:nth-child()</code>."
+              "notes": "Before Opera 15, Opera does not handle dynamically inserted elements for `:nth-child()`."
             },
             "safari": {
               "version_added": "3.1"
@@ -40,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,6 +52,9 @@
         "no_parent_required": {
           "__compat": {
             "description": "Matches elements with no parent",
+            "tags": [
+              "web-features:nth-child"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -72,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -83,7 +88,7 @@
         },
         "of_syntax": {
           "__compat": {
-            "description": "<code>of &lt;selector&gt;</code> syntax",
+            "description": "`of &lt;selector&gt;` syntax",
             "tags": [
               "web-features:nth-child-of"
             ],
@@ -108,7 +113,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/nth-last-child.json b/css/selectors/nth-last-child.json
index 3ad1ddf77b2ac8..73016d88009ee6 100644
--- a/css/selectors/nth-last-child.json
+++ b/css/selectors/nth-last-child.json
@@ -3,7 +3,7 @@
     "selectors": {
       "nth-last-child": {
         "__compat": {
-          "description": "<code>:nth-last-child()</code>",
+          "description": "`:nth-last-child()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:nth-last-child",
           "spec_url": "https://drafts.csswg.org/selectors/#nth-last-child-pseudo",
           "tags": [
@@ -38,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,6 +50,9 @@
         "no_parent_required": {
           "__compat": {
             "description": "Matches elements with no parent",
+            "tags": [
+              "web-features:nth-child"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -81,7 +86,7 @@
         },
         "of_syntax": {
           "__compat": {
-            "description": "<code>of &lt;selector&gt;</code> syntax",
+            "description": "`of &lt;selector&gt;` syntax",
             "tags": [
               "web-features:nth-child-of"
             ],
@@ -106,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/nth-last-of-type.json b/css/selectors/nth-last-of-type.json
index 3937aea17a5f98..bc78ef34a47ecc 100644
--- a/css/selectors/nth-last-of-type.json
+++ b/css/selectors/nth-last-of-type.json
@@ -3,9 +3,12 @@
     "selectors": {
       "nth-last-of-type": {
         "__compat": {
-          "description": "<code>:nth-last-of-type()</code>",
+          "description": "`:nth-last-of-type()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:nth-last-of-type",
           "spec_url": "https://drafts.csswg.org/selectors/#nth-last-of-type-pseudo",
+          "tags": [
+            "web-features:nth-of-type"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -37,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/nth-of-type.json b/css/selectors/nth-of-type.json
index b5545c12bbd662..4aa769c2d4e64e 100644
--- a/css/selectors/nth-of-type.json
+++ b/css/selectors/nth-of-type.json
@@ -3,9 +3,12 @@
     "selectors": {
       "nth-of-type": {
         "__compat": {
-          "description": "<code>:nth-of-type()</code>",
+          "description": "`:nth-of-type()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:nth-of-type",
           "spec_url": "https://drafts.csswg.org/selectors/#nth-of-type-pseudo",
+          "tags": [
+            "web-features:nth-of-type"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -37,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/only-child.json b/css/selectors/only-child.json
index b1c3d467531061..0517a1c2ff37b1 100644
--- a/css/selectors/only-child.json
+++ b/css/selectors/only-child.json
@@ -3,9 +3,12 @@
     "selectors": {
       "only-child": {
         "__compat": {
-          "description": "<code>:only-child</code>",
+          "description": "`:only-child`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:only-child",
           "spec_url": "https://drafts.csswg.org/selectors/#only-child-pseudo",
+          "tags": [
+            "web-features:nth-child"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "no_parent_required": {
           "__compat": {
             "description": "Matches elements with no parent",
+            "tags": [
+              "web-features:nth-child"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/only-of-type.json b/css/selectors/only-of-type.json
index 3d3e338b1c854e..2bf242eca63e4c 100644
--- a/css/selectors/only-of-type.json
+++ b/css/selectors/only-of-type.json
@@ -3,9 +3,12 @@
     "selectors": {
       "only-of-type": {
         "__compat": {
-          "description": "<code>:only-of-type</code>",
+          "description": "`:only-of-type`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:only-of-type",
           "spec_url": "https://drafts.csswg.org/selectors/#only-of-type-pseudo",
+          "tags": [
+            "web-features:nth-of-type"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -37,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/open.json b/css/selectors/open.json
index c6cb3e3cd3ca55..70c79579599d83 100644
--- a/css/selectors/open.json
+++ b/css/selectors/open.json
@@ -3,8 +3,11 @@
     "selectors": {
       "open": {
         "__compat": {
-          "description": "<code>:open</code>",
+          "description": "`:open`",
           "spec_url": "https://drafts.csswg.org/selectors-4/#open-state",
+          "tags": [
+            "web-features:open-closed"
+          ],
           "support": {
             "chrome": {
               "version_added": "114",
@@ -29,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/selectors/optional.json b/css/selectors/optional.json
index 86f3579766551c..054735b68ef0bf 100644
--- a/css/selectors/optional.json
+++ b/css/selectors/optional.json
@@ -3,12 +3,15 @@
     "selectors": {
       "optional": {
         "__compat": {
-          "description": "<code>:optional</code>",
+          "description": "`:optional`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:optional",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-optional",
             "https://drafts.csswg.org/selectors/#opt-pseudos"
           ],
+          "tags": [
+            "web-features:form-validity-pseudos"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/out-of-range.json b/css/selectors/out-of-range.json
index 7f85117cec1809..c3b58688058ea2 100644
--- a/css/selectors/out-of-range.json
+++ b/css/selectors/out-of-range.json
@@ -3,12 +3,15 @@
     "selectors": {
       "out-of-range": {
         "__compat": {
-          "description": "<code>:out-of-range</code>",
+          "description": "`:out-of-range`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:out-of-range",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-out-of-range",
             "https://drafts.csswg.org/selectors/#out-of-range-pseudo"
           ],
+          "tags": [
+            "web-features:form-validity-pseudos"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/part.json b/css/selectors/part.json
index cc3faf44b04654..988c9a65da6e54 100644
--- a/css/selectors/part.json
+++ b/css/selectors/part.json
@@ -3,9 +3,12 @@
     "selectors": {
       "part": {
         "__compat": {
-          "description": "<code>::part</code>",
+          "description": "`::part`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::part",
           "spec_url": "https://drafts.csswg.org/css-shadow-parts/#part",
+          "tags": [
+            "web-features:shadow-parts"
+          ],
           "support": {
             "chrome": {
               "version_added": "73"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/past.json b/css/selectors/past.json
index 8479b9b0630db5..b8760f8db25ba0 100644
--- a/css/selectors/past.json
+++ b/css/selectors/past.json
@@ -3,9 +3,12 @@
     "selectors": {
       "past": {
         "__compat": {
-          "description": "<code>:past</code>",
+          "description": "`:past`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:past",
           "spec_url": "https://drafts.csswg.org/selectors/#the-past-pseudo",
+          "tags": [
+            "web-features:time-relative-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/paused.json b/css/selectors/paused.json
index b8a90cd21540d5..da6e8f1c697cc9 100644
--- a/css/selectors/paused.json
+++ b/css/selectors/paused.json
@@ -3,7 +3,7 @@
     "selectors": {
       "paused": {
         "__compat": {
-          "description": "<code>:paused</code>",
+          "description": "`:paused`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:paused",
           "spec_url": [
             "https://drafts.csswg.org/selectors/#selectordef-paused",
@@ -34,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/picture-in-picture.json b/css/selectors/picture-in-picture.json
index eaeb63602a40f7..5b37797deb6ce4 100644
--- a/css/selectors/picture-in-picture.json
+++ b/css/selectors/picture-in-picture.json
@@ -3,7 +3,7 @@
     "selectors": {
       "picture-in-picture": {
         "__compat": {
-          "description": "<code>:picture-in-picture</code>",
+          "description": "`:picture-in-picture`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:picture-in-picture",
           "spec_url": "https://drafts.csswg.org/selectors/#pip-state",
           "tags": [
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/placeholder-shown.json b/css/selectors/placeholder-shown.json
index f2425b13bb2964..570ffb80ddc8af 100644
--- a/css/selectors/placeholder-shown.json
+++ b/css/selectors/placeholder-shown.json
@@ -3,9 +3,12 @@
     "selectors": {
       "placeholder-shown": {
         "__compat": {
-          "description": "<code>:placeholder-shown</code>",
+          "description": "`:placeholder-shown`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:placeholder-shown",
           "spec_url": "https://drafts.csswg.org/selectors/#placeholder",
+          "tags": [
+            "web-features:placeholder-shown"
+          ],
           "support": {
             "chrome": {
               "version_added": "47"
@@ -35,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,10 @@
         },
         "non_text_types": {
           "__compat": {
-            "description": "Support on non-<code>type=&quot;text&quot;</code> elements (such as <code>type=&quot;number&quot;</code> or <code>type=&quot;time&quot;</code>)",
+            "description": "Support on non-`type=&quot;text&quot;` elements (such as `type=&quot;number&quot;` or `type=&quot;time&quot;`)",
+            "tags": [
+              "web-features:placeholder-shown"
+            ],
             "support": {
               "chrome": {
                 "version_added": "47"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/placeholder.json b/css/selectors/placeholder.json
index f7d71aeac5bd05..c4e1c64ab1cc07 100644
--- a/css/selectors/placeholder.json
+++ b/css/selectors/placeholder.json
@@ -3,9 +3,12 @@
     "selectors": {
       "placeholder": {
         "__compat": {
-          "description": "<code>::placeholder</code>",
+          "description": "`::placeholder`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::placeholder",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#placeholder-pseudo",
+          "tags": [
+            "web-features:placeholder"
+          ],
           "support": {
             "chrome": [
               {
@@ -66,7 +69,8 @@
                 "prefix": "-webkit-input-",
                 "version_added": "2"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/playing.json b/css/selectors/playing.json
index 014f07b828081b..fc98d37d16fae4 100644
--- a/css/selectors/playing.json
+++ b/css/selectors/playing.json
@@ -3,7 +3,7 @@
     "selectors": {
       "playing": {
         "__compat": {
-          "description": "<code>:playing</code>",
+          "description": "`:playing`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:playing",
           "spec_url": [
             "https://drafts.csswg.org/selectors/#selectordef-playing",
@@ -34,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/popover-open.json b/css/selectors/popover-open.json
index 40da05f04c46b0..717510454b7a4e 100644
--- a/css/selectors/popover-open.json
+++ b/css/selectors/popover-open.json
@@ -3,7 +3,7 @@
     "selectors": {
       "popover-open": {
         "__compat": {
-          "description": "<code>:popover-open</code>",
+          "description": "`:popover-open`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:popover-open",
           "spec_url": "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-popover-open",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/read-only.json b/css/selectors/read-only.json
index f35639b208676d..270ffcd164e0ce 100644
--- a/css/selectors/read-only.json
+++ b/css/selectors/read-only.json
@@ -3,7 +3,7 @@
     "selectors": {
       "read-only": {
         "__compat": {
-          "description": "<code>:read-only</code>",
+          "description": "`:read-only`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:read-only",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-read-only",
@@ -47,7 +47,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/read-write.json b/css/selectors/read-write.json
index 29f5324a257dd5..7b47c94fe97d09 100644
--- a/css/selectors/read-write.json
+++ b/css/selectors/read-write.json
@@ -3,7 +3,7 @@
     "selectors": {
       "read-write": {
         "__compat": {
-          "description": "<code>:read-write</code>",
+          "description": "`:read-write`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:read-write",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-read-write",
@@ -47,7 +47,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/required.json b/css/selectors/required.json
index 480bf624430216..b4188f69b80d07 100644
--- a/css/selectors/required.json
+++ b/css/selectors/required.json
@@ -3,12 +3,15 @@
     "selectors": {
       "required": {
         "__compat": {
-          "description": "<code>:required</code>",
+          "description": "`:required`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:required",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-required",
             "https://drafts.csswg.org/selectors/#opt-pseudos"
           ],
+          "tags": [
+            "web-features:form-validity-pseudos"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4.3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/right.json b/css/selectors/right.json
index c438c5991d7d21..7a43fd11a5dfe4 100644
--- a/css/selectors/right.json
+++ b/css/selectors/right.json
@@ -3,9 +3,12 @@
     "selectors": {
       "right": {
         "__compat": {
-          "description": "Right-hand page pseudo-class (<code>:right</code>)",
+          "description": "Right-hand page pseudo-class (`:right`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:right",
           "spec_url": "https://drafts.csswg.org/css-page/#left-right-first",
+          "tags": [
+            "web-features:page-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/root.json b/css/selectors/root.json
index 57a9741abe31c5..6e91b6cce92e29 100644
--- a/css/selectors/root.json
+++ b/css/selectors/root.json
@@ -3,9 +3,12 @@
     "selectors": {
       "root": {
         "__compat": {
-          "description": "<code>:root</code>",
+          "description": "`:root`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:root",
           "spec_url": "https://drafts.csswg.org/selectors/#root-pseudo",
+          "tags": [
+            "web-features:root"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -33,7 +36,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/scope.json b/css/selectors/scope.json
index 95591699affbe2..dd0c68237610bc 100644
--- a/css/selectors/scope.json
+++ b/css/selectors/scope.json
@@ -3,9 +3,12 @@
     "selectors": {
       "scope": {
         "__compat": {
-          "description": "<code>:scope</code>",
+          "description": "`:scope`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:scope",
           "spec_url": "https://drafts.csswg.org/selectors/#the-scope-pseudo",
+          "tags": [
+            "web-features:scope-pseudo"
+          ],
           "support": {
             "chrome": {
               "version_added": "27"
@@ -14,7 +17,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "32",
-              "notes": "Firefox 55 removes support for <code>&lt;style scoped&gt;</code> but not for the <code>:scope</code> pseudo-class, which is still supported. <code>&lt;style scoped&gt;</code> made it possible to explicitly set up element scopes, but ongoing discussions about the design of this feature as well as lack of other implementations resulted in the decision to remove it."
+              "notes": "Firefox 55 removes support for `&lt;style scoped&gt;` but not for the `:scope` pseudo-class, which is still supported. `&lt;style scoped&gt;` made it possible to explicitly set up element scopes, but ongoing discussions about the design of this feature as well as lack of other implementations resulted in the decision to remove it."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,7 +42,10 @@
         },
         "dom_api": {
           "__compat": {
-            "description": "Support in DOM API such as in <code>querySelector()</code> and <code>querySelectorAll()</code>",
+            "description": "Support in DOM API such as in `querySelector()` and `querySelectorAll()`",
+            "tags": [
+              "web-features:scope-pseudo"
+            ],
             "support": {
               "chrome": {
                 "version_added": "27"
@@ -60,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/seeking.json b/css/selectors/seeking.json
index 59917a3151c00c..4718ec701e573c 100644
--- a/css/selectors/seeking.json
+++ b/css/selectors/seeking.json
@@ -3,7 +3,7 @@
     "selectors": {
       "seeking": {
         "__compat": {
-          "description": "<code>:seeking</code>",
+          "description": "`:seeking`",
           "spec_url": [
             "https://drafts.csswg.org/selectors/#selectordef-seeking",
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-seeking"
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/selection.json b/css/selectors/selection.json
index 0d86bc6a09144e..89c76a5c9a69ce 100644
--- a/css/selectors/selection.json
+++ b/css/selectors/selection.json
@@ -3,9 +3,12 @@
     "selectors": {
       "selection": {
         "__compat": {
-          "description": "<code>::selection</code>",
+          "description": "`::selection`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::selection",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#selectordef-selection",
+          "tags": [
+            "web-features:selection"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -41,7 +44,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,7 +55,10 @@
         },
         "text-decoration": {
           "__compat": {
-            "description": "Supports the <code>text-decoration</code> property",
+            "description": "Supports the `text-decoration` property",
+            "tags": [
+              "web-features:text-decoration-selection"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -74,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/slotted.json b/css/selectors/slotted.json
index 9f91b15d61a060..8bcbc600476ff4 100644
--- a/css/selectors/slotted.json
+++ b/css/selectors/slotted.json
@@ -3,7 +3,7 @@
     "selectors": {
       "slotted": {
         "__compat": {
-          "description": "<code>::slotted</code>",
+          "description": "`::slotted`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::slotted",
           "spec_url": "https://drafts.csswg.org/css-scoping/#slotted-pseudo",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/spelling-error.json b/css/selectors/spelling-error.json
index 5154f7382371c8..40032eb48d8ba6 100644
--- a/css/selectors/spelling-error.json
+++ b/css/selectors/spelling-error.json
@@ -3,7 +3,7 @@
     "selectors": {
       "spelling-error": {
         "__compat": {
-          "description": "<code>::spelling-error</code>",
+          "description": "`::spelling-error`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::spelling-error",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#selectordef-spelling-error",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/stalled.json b/css/selectors/stalled.json
index 750c4fc5cf1320..2babb820057f63 100644
--- a/css/selectors/stalled.json
+++ b/css/selectors/stalled.json
@@ -3,7 +3,7 @@
     "selectors": {
       "stalled": {
         "__compat": {
-          "description": "<code>:stalled</code>",
+          "description": "`:stalled`",
           "spec_url": [
             "https://drafts.csswg.org/selectors/#selectordef-stalled",
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-stalled"
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/state.json b/css/selectors/state.json
index 0eb842b12f6199..808e97aea44528 100644
--- a/css/selectors/state.json
+++ b/css/selectors/state.json
@@ -3,7 +3,7 @@
     "selectors": {
       "state": {
         "__compat": {
-          "description": "Custom state pseudo-class selector (<code>:state()</code>)",
+          "description": "Custom state pseudo-class selector (`:state()`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:state",
           "spec_url": "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-custom",
           "tags": [
@@ -17,7 +17,7 @@
               {
                 "version_added": "90",
                 "partial_implementation": true,
-                "notes": "Uses a dashed-ident (such as <code>:--foo</code>) instead of <code>:state()</code>."
+                "notes": "Uses a dashed-ident (such as `:--foo`) instead of `:state()`."
               }
             ],
             "chrome_android": "mirror",
@@ -37,7 +37,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/subsequent-sibling.json b/css/selectors/subsequent-sibling.json
index 1deaaf22b59c70..1801839dcdab9b 100644
--- a/css/selectors/subsequent-sibling.json
+++ b/css/selectors/subsequent-sibling.json
@@ -3,9 +3,12 @@
     "selectors": {
       "subsequent-sibling": {
         "__compat": {
-          "description": "Subsequent-sibling combinator (<code>A ~ B</code>)",
+          "description": "Subsequent-sibling combinator (`A ~ B`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Subsequent-sibling_combinator",
           "spec_url": "https://drafts.csswg.org/selectors/#general-sibling-combinators",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,7 +39,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/target-text.json b/css/selectors/target-text.json
index 01ce8b70c63f66..b10f63a13e4fe7 100644
--- a/css/selectors/target-text.json
+++ b/css/selectors/target-text.json
@@ -3,7 +3,7 @@
     "selectors": {
       "target-text": {
         "__compat": {
-          "description": "<code>::target-text</code>",
+          "description": "`::target-text`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::target-text",
           "spec_url": "https://drafts.csswg.org/css-pseudo/#selectordef-target-text",
           "tags": [
@@ -16,8 +16,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1694053"
+              "version_added": "131"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -27,15 +26,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false,
-              "impl_url": "https://webkit.org/b/236817"
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
diff --git a/css/selectors/target.json b/css/selectors/target.json
index 81d1ef2b975fe1..a31cbd637b9b60 100644
--- a/css/selectors/target.json
+++ b/css/selectors/target.json
@@ -3,12 +3,15 @@
     "selectors": {
       "target": {
         "__compat": {
-          "description": "<code>:target</code>",
+          "description": "`:target`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:target",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-target",
             "https://drafts.csswg.org/selectors/#the-target-pseudo"
           ],
+          "tags": [
+            "web-features:target"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/type.json b/css/selectors/type.json
index 7d9de23777d3b8..8010657583513d 100644
--- a/css/selectors/type.json
+++ b/css/selectors/type.json
@@ -3,9 +3,12 @@
     "selectors": {
       "type": {
         "__compat": {
-          "description": "Type selector (<code>elementName</code>)",
+          "description": "Type selector (`elementName`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Type_selectors",
           "spec_url": "https://drafts.csswg.org/selectors/#type-selectors",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,10 @@
         },
         "namespaces": {
           "__compat": {
-            "description": "Namespaces (<code>ns|elementName</code>)",
+            "description": "Namespaces (`ns|elementName`)",
+            "tags": [
+              "web-features:selectors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -75,7 +82,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/universal.json b/css/selectors/universal.json
index 081c7fd585bcb6..d4a064f918bc4d 100644
--- a/css/selectors/universal.json
+++ b/css/selectors/universal.json
@@ -3,9 +3,12 @@
     "selectors": {
       "universal": {
         "__compat": {
-          "description": "Universal selector (<code>*</code>)",
+          "description": "Universal selector (`*`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Universal_selectors",
           "spec_url": "https://drafts.csswg.org/selectors/#the-universal-selector",
+          "tags": [
+            "web-features:selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,10 @@
         },
         "namespaces": {
           "__compat": {
-            "description": "Namespaces (<code>*|*</code>)",
+            "description": "Namespaces (`*|*`)",
+            "tags": [
+              "web-features:selectors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -75,7 +82,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/user-invalid.json b/css/selectors/user-invalid.json
index 990b96bfd345ec..b3f56a8370528e 100644
--- a/css/selectors/user-invalid.json
+++ b/css/selectors/user-invalid.json
@@ -3,7 +3,7 @@
     "selectors": {
       "user-invalid": {
         "__compat": {
-          "description": "<code>:user-invalid</code>",
+          "description": "`:user-invalid`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:user-invalid",
           "spec_url": "https://drafts.csswg.org/selectors/#user-invalid-pseudo",
           "tags": [
@@ -11,8 +11,7 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "119",
-              "impl_url": "https://crbug.com/1156069"
+              "version_added": "119"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -37,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/user-valid.json b/css/selectors/user-valid.json
index db0d15b39afad8..206f45c43c5ec0 100644
--- a/css/selectors/user-valid.json
+++ b/css/selectors/user-valid.json
@@ -3,7 +3,7 @@
     "selectors": {
       "user-valid": {
         "__compat": {
-          "description": "<code>:user-valid</code>",
+          "description": "`:user-valid`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:user-valid",
           "spec_url": "https://drafts.csswg.org/selectors/#user-valid-pseudo",
           "tags": [
@@ -11,8 +11,7 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "119",
-              "impl_url": "https://crbug.com/1156069"
+              "version_added": "119"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -37,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/valid.json b/css/selectors/valid.json
index 2d95ac351c632a..01b3f9ebd82f03 100644
--- a/css/selectors/valid.json
+++ b/css/selectors/valid.json
@@ -3,12 +3,15 @@
     "selectors": {
       "valid": {
         "__compat": {
-          "description": "<code>:valid</code>",
+          "description": "`:valid`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:valid",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-valid",
             "https://drafts.csswg.org/selectors/#validity-pseudos"
           ],
+          "tags": [
+            "web-features:form-validity-pseudos"
+          ],
           "support": {
             "chrome": {
               "version_added": "10"
@@ -40,7 +43,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -50,7 +54,10 @@
         },
         "form": {
           "__compat": {
-            "description": "Applies to <code>&lt;form&gt;</code> elements",
+            "description": "Applies to `&lt;form&gt;` elements",
+            "tags": [
+              "web-features:form-validity-pseudos"
+            ],
             "support": {
               "chrome": {
                 "version_added": "40"
@@ -72,7 +79,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/view-transition-group.json b/css/selectors/view-transition-group.json
index 1c1418a249f29d..dc5e6e49b0a8e5 100644
--- a/css/selectors/view-transition-group.json
+++ b/css/selectors/view-transition-group.json
@@ -3,7 +3,7 @@
     "selectors": {
       "view-transition-group": {
         "__compat": {
-          "description": "<code>::view-transition-group()</code>",
+          "description": "`::view-transition-group()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::view-transition-group",
           "spec_url": "https://drafts.csswg.org/css-view-transitions/#::view-transition-group",
           "tags": [
@@ -16,7 +16,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1823896"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -30,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/view-transition-image-pair.json b/css/selectors/view-transition-image-pair.json
index d4a82e7698b611..baa5b4f0690587 100644
--- a/css/selectors/view-transition-image-pair.json
+++ b/css/selectors/view-transition-image-pair.json
@@ -3,7 +3,7 @@
     "selectors": {
       "view-transition-image-pair": {
         "__compat": {
-          "description": "<code>::view-transition-image-pair()</code>",
+          "description": "`::view-transition-image-pair()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::view-transition-image-pair",
           "spec_url": "https://drafts.csswg.org/css-view-transitions/#::view-transition-image-pair",
           "tags": [
@@ -16,7 +16,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1823896"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -30,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/view-transition-new.json b/css/selectors/view-transition-new.json
index 39e88df42a86ec..4de4cbb05d5cca 100644
--- a/css/selectors/view-transition-new.json
+++ b/css/selectors/view-transition-new.json
@@ -3,7 +3,7 @@
     "selectors": {
       "view-transition-new": {
         "__compat": {
-          "description": "<code>::view-transition-new()</code>",
+          "description": "`::view-transition-new()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::view-transition-new",
           "spec_url": "https://drafts.csswg.org/css-view-transitions/#::view-transition-new",
           "tags": [
@@ -16,7 +16,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1823896"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -30,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/view-transition-old.json b/css/selectors/view-transition-old.json
index 25a50ac1ee3555..a7f93198699ce8 100644
--- a/css/selectors/view-transition-old.json
+++ b/css/selectors/view-transition-old.json
@@ -3,7 +3,7 @@
     "selectors": {
       "view-transition-old": {
         "__compat": {
-          "description": "<code>::view-transition-old()</code>",
+          "description": "`::view-transition-old()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::view-transition-old",
           "spec_url": "https://drafts.csswg.org/css-view-transitions/#::view-transition-old",
           "tags": [
@@ -16,7 +16,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1823896"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -30,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/view-transition.json b/css/selectors/view-transition.json
index 54b752e4f38e5b..1dabb65c193fb8 100644
--- a/css/selectors/view-transition.json
+++ b/css/selectors/view-transition.json
@@ -3,7 +3,7 @@
     "selectors": {
       "view-transition": {
         "__compat": {
-          "description": "<code>::view-transition</code>",
+          "description": "`::view-transition`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::view-transition",
           "spec_url": "https://drafts.csswg.org/css-view-transitions/#selectordef-view-transition",
           "tags": [
@@ -16,7 +16,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1823896"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -30,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/visited.json b/css/selectors/visited.json
index 1e25ccca5efb1c..a3ba5299ec0fa2 100644
--- a/css/selectors/visited.json
+++ b/css/selectors/visited.json
@@ -3,12 +3,15 @@
     "selectors": {
       "visited": {
         "__compat": {
-          "description": "<code>:visited</code>",
+          "description": "`:visited`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:visited",
           "spec_url": [
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-visited",
             "https://drafts.csswg.org/selectors/#link"
           ],
+          "tags": [
+            "web-features:link-selectors"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,7 +50,10 @@
         },
         "not_match_link": {
           "__compat": {
-            "description": "<code>:visited</code> privacy: selector does not match <code>&lt;link&gt;</code> elements",
+            "description": "`:visited` privacy: selector does not match `&lt;link&gt;` elements",
+            "tags": [
+              "web-features:link-selectors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -70,7 +77,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -81,7 +89,10 @@
         },
         "privacy_measures": {
           "__compat": {
-            "description": "Restrict CSS properties allowed in a statement using <code>:visited</code> for privacy",
+            "description": "Restrict CSS properties allowed in a statement using `:visited` for privacy",
+            "tags": [
+              "web-features:link-selectors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -107,7 +118,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/volume-locked.json b/css/selectors/volume-locked.json
index f31785ffdfee78..221eaad9436460 100644
--- a/css/selectors/volume-locked.json
+++ b/css/selectors/volume-locked.json
@@ -3,7 +3,7 @@
     "selectors": {
       "volume-locked": {
         "__compat": {
-          "description": "<code>:volume-locked</code>",
+          "description": "`:volume-locked`",
           "spec_url": [
             "https://drafts.csswg.org/selectors/#selectordef-volume-locked",
             "https://html.spec.whatwg.org/multipage/semantics-other.html#selector-volume-locked"
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/selectors/where.json b/css/selectors/where.json
index 8ea0654695482d..ff5bb517d5b953 100644
--- a/css/selectors/where.json
+++ b/css/selectors/where.json
@@ -3,7 +3,7 @@
     "selectors": {
       "where": {
         "__compat": {
-          "description": "<code>:where()</code>",
+          "description": "`:where()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:where",
           "spec_url": "https://drafts.csswg.org/selectors/#zero-matches",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -66,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/target-within.json b/css/selectors/xr-overlay.json
similarity index 70%
rename from css/selectors/target-within.json
rename to css/selectors/xr-overlay.json
index a5b0aca1a91c2e..f31386ad447ba0 100644
--- a/css/selectors/target-within.json
+++ b/css/selectors/xr-overlay.json
@@ -1,14 +1,16 @@
 {
   "css": {
     "selectors": {
-      "target-within": {
+      "xr-overlay": {
         "__compat": {
-          "description": "<code>:target-within</code>",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:target-within",
-          "spec_url": "https://drafts.csswg.org/selectors/#the-target-within-pseudo",
+          "description": "`:xr-overlay`",
+          "spec_url": "https://immersive-web.github.io/dom-overlays/#selectordef-xr-overlay",
+          "tags": [
+            "web-features:webxr-dom-overlays"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "83"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -27,7 +29,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/types/-moz-image-rect.json b/css/types/-moz-image-rect.json
index 475632525c45b8..b48c87f858163d 100644
--- a/css/types/-moz-image-rect.json
+++ b/css/types/-moz-image-rect.json
@@ -3,7 +3,7 @@
     "types": {
       "-moz-image-rect": {
         "__compat": {
-          "description": "<code>-moz-image-rect()</code>",
+          "description": "`-moz-image-rect()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/-moz-image-rect",
           "support": {
             "chrome": {
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/abs.json b/css/types/abs.json
index 5e4b0696af539b..0ddb58203391a7 100644
--- a/css/types/abs.json
+++ b/css/types/abs.json
@@ -3,7 +3,7 @@
     "types": {
       "abs": {
         "__compat": {
-          "description": "<code>abs()</code>",
+          "description": "`abs()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/abs",
           "spec_url": "https://drafts.csswg.org/css-values/#sign-funcs",
           "tags": [
@@ -12,7 +12,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/1407476"
+              "impl_url": "https://crbug.com/40253181"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/acos.json b/css/types/acos.json
index 989c25ac40029c..92d511139da314 100644
--- a/css/types/acos.json
+++ b/css/types/acos.json
@@ -3,7 +3,7 @@
     "types": {
       "acos": {
         "__compat": {
-          "description": "<code>acos()</code>",
+          "description": "`acos()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/acos",
           "spec_url": "https://drafts.csswg.org/css-values/#trig-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/anchor-size.json b/css/types/anchor-size.json
index cb92724dd8c6a6..8cb8cf3fb987ed 100644
--- a/css/types/anchor-size.json
+++ b/css/types/anchor-size.json
@@ -3,7 +3,7 @@
     "types": {
       "anchor-size": {
         "__compat": {
-          "description": "<code>anchor-size()</code>",
+          "description": "`anchor-size()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/anchor-size",
           "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-size-fn",
           "tags": [
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/types/anchor.json b/css/types/anchor.json
index 8e832a47925f61..a1e602b4b9fc61 100644
--- a/css/types/anchor.json
+++ b/css/types/anchor.json
@@ -3,7 +3,7 @@
     "types": {
       "anchor": {
         "__compat": {
-          "description": "<code>anchor()</code>",
+          "description": "`anchor()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/anchor",
           "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos",
           "tags": [
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/types/angle-percentage.json b/css/types/angle-percentage.json
index 518eb15c8188fc..e0b44f353b6fff 100644
--- a/css/types/angle-percentage.json
+++ b/css/types/angle-percentage.json
@@ -3,9 +3,12 @@
     "types": {
       "angle-percentage": {
         "__compat": {
-          "description": "<code>&lt;angle-percentage&gt;</code>",
+          "description": "`&lt;angle-percentage&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/angle-percentage",
           "spec_url": "https://drafts.csswg.org/css-values/#mixed-percentages",
+          "tags": [
+            "web-features:transforms2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -31,7 +34,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/angle.json b/css/types/angle.json
index 800dfd25db9ce6..666652d52e0cee 100644
--- a/css/types/angle.json
+++ b/css/types/angle.json
@@ -3,9 +3,12 @@
     "types": {
       "angle": {
         "__compat": {
-          "description": "<code>&lt;angle&gt;</code>",
+          "description": "`&lt;angle&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/angle",
           "spec_url": "https://drafts.csswg.org/css-values/#angles",
+          "tags": [
+            "web-features:transforms2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -31,7 +34,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         "deg": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/angle#deg",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -67,7 +74,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -79,6 +87,9 @@
         "grad": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/angle#grad",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -104,7 +115,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -116,6 +128,9 @@
         "rad": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/angle#rad",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -141,7 +156,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -153,6 +169,9 @@
         "turn": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/angle#turn",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -178,7 +197,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/asin.json b/css/types/asin.json
index 50c502dbd2bf1f..d71dd9cb6528de 100644
--- a/css/types/asin.json
+++ b/css/types/asin.json
@@ -3,7 +3,7 @@
     "types": {
       "asin": {
         "__compat": {
-          "description": "<code>asin()</code>",
+          "description": "`asin()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/asin",
           "spec_url": "https://drafts.csswg.org/css-values/#trig-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/atan.json b/css/types/atan.json
index 4fb5173b540d16..76ad4af406cc77 100644
--- a/css/types/atan.json
+++ b/css/types/atan.json
@@ -3,7 +3,7 @@
     "types": {
       "atan": {
         "__compat": {
-          "description": "<code>atan()</code>",
+          "description": "`atan()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/atan",
           "spec_url": "https://drafts.csswg.org/css-values/#trig-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/atan2.json b/css/types/atan2.json
index 3c3ec071d33966..6d22277505ce4d 100644
--- a/css/types/atan2.json
+++ b/css/types/atan2.json
@@ -3,7 +3,7 @@
     "types": {
       "atan2": {
         "__compat": {
-          "description": "<code>atan2()</code>",
+          "description": "`atan2()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/atan2",
           "spec_url": "https://drafts.csswg.org/css-values/#trig-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/attr.json b/css/types/attr.json
index c6ab0a30ba5949..3c9da9b879388f 100644
--- a/css/types/attr.json
+++ b/css/types/attr.json
@@ -3,9 +3,12 @@
     "types": {
       "attr": {
         "__compat": {
-          "description": "<code>attr()</code>",
+          "description": "`attr()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/attr",
           "spec_url": "https://drafts.csswg.org/css-values-5/#attr-notation",
+          "tags": [
+            "web-features:attr-contents"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         "fallback": {
           "__compat": {
             "description": "&lt;fallback&gt;",
+            "tags": [
+              "web-features:attr"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -68,7 +75,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -80,6 +88,9 @@
         "type-or-unit": {
           "__compat": {
             "description": "&lt;type-or-unit&gt;",
+            "tags": [
+              "web-features:attr"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -103,7 +114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -114,6 +126,9 @@
           "angle": {
             "__compat": {
               "description": "&lt;angle&gt;",
+              "tags": [
+                "web-features:attr"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -137,7 +152,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -149,6 +165,9 @@
           "color": {
             "__compat": {
               "description": "&lt;color&gt;",
+              "tags": [
+                "web-features:attr"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -172,7 +191,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -184,6 +204,9 @@
           "frequency": {
             "__compat": {
               "description": "&lt;frequency&gt;",
+              "tags": [
+                "web-features:attr"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -207,7 +230,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -219,6 +243,9 @@
           "integer": {
             "__compat": {
               "description": "&lt;integer&gt;",
+              "tags": [
+                "web-features:attr"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -242,7 +269,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -254,6 +282,9 @@
           "length": {
             "__compat": {
               "description": "&lt;length&gt;",
+              "tags": [
+                "web-features:attr"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -277,7 +308,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -289,6 +321,9 @@
           "number": {
             "__compat": {
               "description": "&lt;number&gt;",
+              "tags": [
+                "web-features:attr"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -312,7 +347,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -324,6 +360,9 @@
           "percentage": {
             "__compat": {
               "description": "&lt;percentage&gt;",
+              "tags": [
+                "web-features:attr"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -347,7 +386,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -359,6 +399,9 @@
           "time": {
             "__compat": {
               "description": "&lt;time&gt;",
+              "tags": [
+                "web-features:attr"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -382,7 +425,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -394,6 +438,9 @@
           "url": {
             "__compat": {
               "description": "&lt;url&gt;",
+              "tags": [
+                "web-features:attr"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -417,7 +464,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/css/types/basic-shape.json b/css/types/basic-shape.json
index 22db8e5f347a34..c5c96bcf42aac3 100644
--- a/css/types/basic-shape.json
+++ b/css/types/basic-shape.json
@@ -3,9 +3,12 @@
     "types": {
       "basic-shape": {
         "__compat": {
-          "description": "<code>&lt;basic-shape&gt;</code>",
+          "description": "`&lt;basic-shape&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape",
           "spec_url": "https://drafts.csswg.org/css-shapes/#basic-shape-functions",
+          "tags": [
+            "web-features:shapes"
+          ],
           "support": {
             "chrome": {
               "version_added": "37"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
           "__compat": {
             "description": "Animation",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape#Interpolation_of_basic_shapes",
+            "tags": [
+              "web-features:shapes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -60,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -71,9 +79,12 @@
         },
         "circle": {
           "__compat": {
-            "description": "<code>circle()</code>",
+            "description": "`circle()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/circle",
             "spec_url": "https://drafts.csswg.org/css-shapes/#funcdef-basic-shape-circle",
+            "tags": [
+              "web-features:shapes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -95,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -106,9 +118,12 @@
         },
         "ellipse": {
           "__compat": {
-            "description": "<code>ellipse()</code>",
+            "description": "`ellipse()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/ellipse",
             "spec_url": "https://drafts.csswg.org/css-shapes/#funcdef-basic-shape-ellipse",
+            "tags": [
+              "web-features:shapes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -130,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -141,9 +157,12 @@
         },
         "inset": {
           "__compat": {
-            "description": "<code>inset()</code>",
+            "description": "`inset()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/inset",
             "spec_url": "https://drafts.csswg.org/css-shapes/#funcdef-basic-shape-inset",
+            "tags": [
+              "web-features:shapes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -165,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -176,41 +196,21 @@
         },
         "path": {
           "__compat": {
-            "description": "<code>path()</code>",
+            "description": "`path()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/path",
             "spec_url": "https://drafts.csswg.org/css-shapes/#funcdef-basic-shape-path",
+            "tags": [
+              "web-features:path-shape"
+            ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>d</code> SVG presentation attribute and the <code>clip-path</code> and <code>offset-path</code> properties."
-                },
-                {
-                  "version_added": "56",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>d</code> SVG presentation attribute and the <code>offset-path</code> property."
-                },
-                {
-                  "version_added": "52",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>d</code> SVG presentation attribute."
-                }
-              ],
+              "chrome": {
+                "version_added": "52"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
-              "firefox": [
-                {
-                  "version_added": "97",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>d</code> SVG presentation attribute and the <code>clip-path</code> and <code>offset-path</code> CSS properties. Not supported on the <code>shape-outside</code> CSS property."
-                },
-                {
-                  "version_added": "72",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>clip-path</code> and <code>offset-path</code> properties."
-                }
-              ],
+              "firefox": {
+                "version_added": "72"
+              },
               "firefox_android": "mirror",
               "ie": {
                 "version_added": false
@@ -220,37 +220,25 @@
               "opera_android": "mirror",
               "safari": [
                 {
-                  "version_added": "16",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>offset-path</code> and <code>clip-path</code> properties."
-                },
-                {
-                  "version_added": "13.1",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>clip-path</code> property."
+                  "version_added": "13.1"
                 },
                 {
                   "prefix": "-webkit-",
-                  "version_added": "10.1",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>clip-path</code> property."
+                  "version_added": "10.1"
                 }
               ],
               "safari_ios": [
                 {
-                  "version_added": "13",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>clip-path</code> property."
+                  "version_added": "13"
                 },
                 {
                   "prefix": "-webkit-",
-                  "version_added": "10.3",
-                  "partial_implementation": true,
-                  "notes": "Only supported on the <code>clip-path</code> property."
+                  "version_added": "10.3"
                 }
               ],
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -260,12 +248,15 @@
           },
           "clip-path": {
             "__compat": {
-              "description": "In <code>clip-path</code>",
+              "description": "In `clip-path`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/clip-path",
               "spec_url": [
                 "https://drafts.fxtf.org/css-masking/#the-clip-path",
                 "https://drafts.csswg.org/css-shapes/#supported-basic-shapes"
               ],
+              "tags": [
+                "web-features:path-shape"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "88"
@@ -301,7 +292,8 @@
                   }
                 ],
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -312,9 +304,12 @@
           },
           "d": {
             "__compat": {
-              "description": "In <code>d</code> as CSS property",
+              "description": "In `d` as CSS property",
               "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/d#using_d_as_a_css_property",
               "spec_url": "https://svgwg.org/svg2-draft/paths.html#DProperty",
+              "tags": [
+                "web-features:path-shape"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "52"
@@ -340,7 +335,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -351,9 +347,12 @@
           },
           "offset-path": {
             "__compat": {
-              "description": "In <code>offset-path</code>",
+              "description": "In `offset-path`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/offset-path",
               "spec_url": "https://drafts.fxtf.org/motion/#offset-path-property",
+              "tags": [
+                "web-features:path-shape"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "56"
@@ -375,7 +374,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -386,9 +386,12 @@
           },
           "shape-outside": {
             "__compat": {
-              "description": "In <code>shape-outside</code>",
+              "description": "In `shape-outside`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/shape-outside",
               "spec_url": "https://drafts.csswg.org/css-shapes/#shape-outside-property",
+              "tags": [
+                "web-features:path-shape"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -410,7 +413,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -422,9 +426,12 @@
         },
         "polygon": {
           "__compat": {
-            "description": "<code>polygon()</code>",
+            "description": "`polygon()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/polygon",
             "spec_url": "https://drafts.csswg.org/css-shapes/#funcdef-basic-shape-polygon",
+            "tags": [
+              "web-features:shapes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "37"
@@ -446,7 +453,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -457,14 +465,17 @@
         },
         "rect": {
           "__compat": {
-            "description": "<code>rect()</code>",
+            "description": "`rect()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/rect",
             "spec_url": "https://drafts.csswg.org/css-shapes-1/#funcdef-basic-shape-rect",
+            "tags": [
+              "web-features:shapes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116",
                 "partial_implementation": true,
-                "notes": "Only supported on the <code>offset-path</code> property."
+                "notes": "Only supported on the `offset-path` property."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -483,7 +494,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -494,9 +506,12 @@
         },
         "shape": {
           "__compat": {
-            "description": "<code>shape()</code>",
+            "description": "`shape()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/shape",
             "spec_url": "https://drafts.csswg.org/css-shapes-2/#shape-function",
+            "tags": [
+              "web-features:shapes"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -526,11 +541,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "preview"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -541,14 +557,17 @@
         },
         "xywh": {
           "__compat": {
-            "description": "<code>xywh()</code>",
+            "description": "`xywh()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/xywh",
             "spec_url": "https://drafts.csswg.org/css-shapes-1/#funcdef-basic-shape-xywh",
+            "tags": [
+              "web-features:shapes"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116",
                 "partial_implementation": true,
-                "notes": "Only supported on the <code>offset-path</code> property."
+                "notes": "Only supported on the `offset-path` property."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -567,7 +586,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/blend-mode.json b/css/types/blend-mode.json
index 3f5182db2b30ef..0a5fb4f55f6611 100644
--- a/css/types/blend-mode.json
+++ b/css/types/blend-mode.json
@@ -3,9 +3,12 @@
     "types": {
       "blend-mode": {
         "__compat": {
-          "description": "<code>&lt;blend-mode&gt;</code>",
+          "description": "`&lt;blend-mode&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/blend-mode",
           "spec_url": "https://drafts.fxtf.org/compositing/#ltblendmodegt",
+          "tags": [
+            "web-features:background-blend-mode"
+          ],
           "support": {
             "chrome": {
               "version_added": "35"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/calc-constant.json b/css/types/calc-constant.json
index 12de8f5cfaaea9..a0039c2105abf2 100644
--- a/css/types/calc-constant.json
+++ b/css/types/calc-constant.json
@@ -3,7 +3,7 @@
     "types": {
       "calc-constant": {
         "__compat": {
-          "description": "<code>&lt;calc-constant&gt;</code>",
+          "description": "`&lt;calc-constant&gt;`",
           "spec_url": "https://drafts.csswg.org/css-values/#calc-constants",
           "tags": [
             "web-features:calc-constants"
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +40,7 @@
         },
         "NaN": {
           "__compat": {
-            "description": "<code>NaN</code> constant",
+            "description": "`NaN` constant",
             "tags": [
               "web-features:calc-constants"
             ],
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -75,7 +77,7 @@
         },
         "e": {
           "__compat": {
-            "description": "<code>e</code> constant",
+            "description": "`e` constant",
             "tags": [
               "web-features:calc-constants"
             ],
@@ -100,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -111,7 +114,7 @@
         },
         "infinity": {
           "__compat": {
-            "description": "<code>infinity</code> and <code>-infinity</code> constants",
+            "description": "`infinity` and `-infinity` constants",
             "tags": [
               "web-features:calc-constants"
             ],
@@ -136,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -147,7 +151,7 @@
         },
         "pi": {
           "__compat": {
-            "description": "<code>pi</code> constant",
+            "description": "`pi` constant",
             "tags": [
               "web-features:calc-constants"
             ],
@@ -172,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/selectors/blank.json b/css/types/calc-size.json
similarity index 65%
rename from css/selectors/blank.json
rename to css/types/calc-size.json
index 2db10fd07e001a..a52650f28b68de 100644
--- a/css/selectors/blank.json
+++ b/css/types/calc-size.json
@@ -1,21 +1,23 @@
 {
   "css": {
-    "selectors": {
-      "blank": {
+    "types": {
+      "calc-size": {
         "__compat": {
-          "description": "<code>:blank</code>",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:blank",
-          "spec_url": "https://drafts.csswg.org/selectors/#blank-pseudo",
+          "description": "`calc-size()`",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/calc-size",
+          "spec_url": "https://drafts.csswg.org/css-values-5/#calc-size",
+          "tags": [
+            "web-features:calc-size"
+          ],
           "support": {
             "chrome": {
-              "version_added": false,
-              "impl_url": "https://crbug.com/447880"
+              "version_added": "129"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
               "version_added": false,
-              "impl_url": "https://bugzil.la/1197736"
+              "impl_url": "https://bugzil.la/1896734"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -25,11 +27,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/274177"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/css/types/calc.json b/css/types/calc.json
index 6d98552e083aae..b20b4c2072e199 100644
--- a/css/types/calc.json
+++ b/css/types/calc.json
@@ -3,7 +3,7 @@
     "types": {
       "calc": {
         "__compat": {
-          "description": "<code>calc()</code>",
+          "description": "`calc()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/calc",
           "spec_url": "https://drafts.csswg.org/css-values/#calc-func",
           "tags": [
@@ -29,9 +29,9 @@
               {
                 "version_added": "16",
                 "notes": [
-                  "Before Firefox 59 <code>calc()</code> is not supported in <code>rgb()</code> and other color functions.",
-                  "Before Firefox 57 <code>calc(1*2*3)</code> is not parsed successfully.",
-                  "Firefox 57 increased the number of places <code>calc()</code> could substitute another value. See <a href='https://bugzil.la/1350857'>bug 1350857</a>."
+                  "Before Firefox 59 `calc()` is not supported in `rgb()` and other color functions.",
+                  "Before Firefox 57 `calc(1*2*3)` is not parsed successfully.",
+                  "Firefox 57 increased the number of places `calc()` could substitute another value. See [bug 1350857](https://bugzil.la/1350857)."
                 ]
               },
               {
@@ -70,7 +70,8 @@
                 "prefix": "-webkit-",
                 "version_added": "≤37"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -105,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -147,7 +149,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -158,7 +161,7 @@
         },
         "nested": {
           "__compat": {
-            "description": "Nested <code>calc()</code> support",
+            "description": "Nested `calc()` support",
             "tags": [
               "web-features:calc"
             ],
@@ -185,7 +188,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -196,7 +200,7 @@
         },
         "number_values": {
           "__compat": {
-            "description": "<code>&lt;number&gt;</code> value support",
+            "description": "`&lt;number&gt;` value support",
             "tags": [
               "web-features:calc"
             ],
@@ -223,7 +227,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/clamp.json b/css/types/clamp.json
index 97042b8b378ba3..370047b1538e08 100644
--- a/css/types/clamp.json
+++ b/css/types/clamp.json
@@ -3,7 +3,7 @@
     "types": {
       "clamp": {
         "__compat": {
-          "description": "<code>clamp()</code>",
+          "description": "`clamp()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/clamp",
           "spec_url": "https://drafts.csswg.org/css-values/#calc-notation",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/color.json b/css/types/color.json
index 7ca851561b4b8b..a351c4dc5b8e30 100644
--- a/css/types/color.json
+++ b/css/types/color.json
@@ -3,7 +3,7 @@
     "types": {
       "color": {
         "__compat": {
-          "description": "<code>&lt;color&gt;</code>",
+          "description": "`&lt;color&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value",
           "spec_url": "https://drafts.csswg.org/css-color/#color-syntax",
           "support": {
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +44,7 @@
         },
         "color": {
           "__compat": {
-            "description": "<code>color()</code> (Profiled color values)",
+            "description": "`color()` (Profiled color values)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/color",
             "spec_url": "https://drafts.csswg.org/css-color/#color-function",
             "tags": [
@@ -73,12 +74,13 @@
                   "version_added": "10.1",
                   "version_removed": "15",
                   "partial_implementation": true,
-                  "notes": "Only supports <code>display-p3</code> and <code>srgb</code> predefined color profiles."
+                  "notes": "Only supports `display-p3` and `srgb` predefined color profiles."
                 }
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -88,7 +90,7 @@
           },
           "mixed_type_parameters": {
             "__compat": {
-              "description": "Mix <code>&lt;percentage&gt;</code> and <code>&lt;number&gt;</code> in parameters",
+              "description": "Mix `&lt;percentage&gt;` and `&lt;number&gt;` in parameters",
               "tags": [
                 "web-features:color-function"
               ],
@@ -113,7 +115,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -124,7 +127,7 @@
           },
           "relative_syntax": {
             "__compat": {
-              "description": "Relative <code>color()</code> syntax",
+              "description": "Relative `color()` syntax",
               "spec_url": "https://drafts.csswg.org/css-color-5/#relative-color-function",
               "tags": [
                 "web-features:relative-color"
@@ -145,14 +148,20 @@
                 "oculus": "mirror",
                 "opera": "mirror",
                 "opera_android": "mirror",
-                "safari": {
-                  "version_added": "16.4",
-                  "partial_implementation": true,
-                  "notes": "Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified as percentages with units (<code>%</code>)."
-                },
+                "safari": [
+                  {
+                    "version_added": "18"
+                  },
+                  {
+                    "version_added": "16.4",
+                    "partial_implementation": true,
+                    "notes": "Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified as percentages with units (`%`)."
+                  }
+                ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -162,50 +171,9 @@
             }
           }
         },
-        "color-contrast": {
-          "__compat": {
-            "description": "<code>color-contrast()</code>",
-            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/color-contrast",
-            "spec_url": "https://drafts.csswg.org/css-color-6/#colorcontrast",
-            "support": {
-              "chrome": {
-                "version_added": false
-              },
-              "chrome_android": "mirror",
-              "edge": "mirror",
-              "firefox": {
-                "version_added": false
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": false
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": "15",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "CSS color-contrast()"
-                  }
-                ]
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": true,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
-        },
         "color-mix": {
           "__compat": {
-            "description": "<code>color-mix()</code>",
+            "description": "`color-mix()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/color-mix",
             "spec_url": "https://drafts.csswg.org/css-color-5/#color-mix",
             "tags": [
@@ -232,7 +200,10 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": {
+                "version_added": false
+              }
             },
             "status": {
               "experimental": false,
@@ -243,9 +214,12 @@
         },
         "currentcolor": {
           "__compat": {
-            "description": "<code>currentcolor</code> keyword",
+            "description": "`currentcolor` keyword",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value#currentcolor",
             "spec_url": "https://drafts.csswg.org/css-color/#currentcolor-color",
+            "tags": [
+              "web-features:currentcolor"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -273,7 +247,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -284,9 +259,12 @@
         },
         "hsl": {
           "__compat": {
-            "description": "<code>hsl()</code> (HSL color model)",
+            "description": "`hsl()` (HSL color model)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/hsl",
             "spec_url": "https://drafts.csswg.org/css-color/#the-hsl-notation",
+            "tags": [
+              "web-features:hsl"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -316,7 +294,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -327,6 +306,9 @@
           "alpha_parameter": {
             "__compat": {
               "description": "Alpha parameter",
+              "tags": [
+                "web-features:hsl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "65"
@@ -348,7 +330,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -359,7 +342,10 @@
           },
           "mixed_type_parameters": {
             "__compat": {
-              "description": "Mix <code>&lt;percentage&gt;</code> and <code>&lt;number&gt;</code> in parameters",
+              "description": "Mix `&lt;percentage&gt;` and `&lt;number&gt;` in parameters",
+              "tags": [
+                "web-features:hsl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "121"
@@ -377,11 +363,12 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": false
+                  "version_added": "18"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -398,11 +385,16 @@
                 "web-features:relative-color"
               ],
               "support": {
-                "chrome": {
-                  "version_added": "119",
-                  "partial_implementation": true,
-                  "notes": "<code>s</code> and <code>l</code> channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require <code>s</code> and <code>l</code> values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%)."
-                },
+                "chrome": [
+                  {
+                    "version_added": "125"
+                  },
+                  {
+                    "version_added": "119",
+                    "partial_implementation": true,
+                    "notes": "`s` and `l` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `s` and `l` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%)."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "edge": "mirror",
                 "firefox": {
@@ -415,14 +407,20 @@
                 "oculus": "mirror",
                 "opera": "mirror",
                 "opera_android": "mirror",
-                "safari": {
-                  "version_added": "16.4",
-                  "partial_implementation": true,
-                  "notes": "Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (<code>deg</code> for <code>h</code>, <code>%</code> for <code>s</code> and <code>l</code>)."
-                },
+                "safari": [
+                  {
+                    "version_added": "18"
+                  },
+                  {
+                    "version_added": "16.4",
+                    "partial_implementation": true,
+                    "notes": "Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (`deg` for `h`, `%` for `s` and `l`)."
+                  }
+                ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -434,6 +432,9 @@
           "space_separated_parameters": {
             "__compat": {
               "description": "Space-separated parameters",
+              "tags": [
+                "web-features:hsl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "65"
@@ -455,7 +456,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -467,9 +469,12 @@
         },
         "hwb": {
           "__compat": {
-            "description": "<code>hwb()</code> (HWB color model)",
+            "description": "`hwb()` (HWB color model)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/hwb",
             "spec_url": "https://drafts.csswg.org/css-color/#the-hwb-notation",
+            "tags": [
+              "web-features:hwb"
+            ],
             "support": {
               "chrome": {
                 "version_added": "101"
@@ -491,7 +496,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -501,7 +507,10 @@
           },
           "mixed_type_parameters": {
             "__compat": {
-              "description": "Mix <code>&lt;percentage&gt;</code> and <code>&lt;number&gt;</code> in parameters",
+              "description": "Mix `&lt;percentage&gt;` and `&lt;number&gt;` in parameters",
+              "tags": [
+                "web-features:hwb"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "121"
@@ -519,11 +528,12 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": false
+                  "version_added": "18"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -540,11 +550,16 @@
                 "web-features:relative-color"
               ],
               "support": {
-                "chrome": {
-                  "version_added": "119",
-                  "partial_implementation": true,
-                  "notes": "<code>w</code> and <code>b</code> channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require <code>w</code> and <code>b</code> values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%)."
-                },
+                "chrome": [
+                  {
+                    "version_added": "125"
+                  },
+                  {
+                    "version_added": "119",
+                    "partial_implementation": true,
+                    "notes": "`w` and `b` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `w` and `b` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%)."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "edge": "mirror",
                 "firefox": {
@@ -557,14 +572,20 @@
                 "oculus": "mirror",
                 "opera": "mirror",
                 "opera_android": "mirror",
-                "safari": {
-                  "version_added": "16.4",
-                  "partial_implementation": true,
-                  "notes": "Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (<code>deg</code> for <code>h</code>, <code>%</code> for <code>w</code> and <code>b</code>)."
-                },
+                "safari": [
+                  {
+                    "version_added": "18"
+                  },
+                  {
+                    "version_added": "16.4",
+                    "partial_implementation": true,
+                    "notes": "Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (`deg` for `h`, `%` for `w` and `b`)."
+                  }
+                ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -576,7 +597,7 @@
         },
         "lab": {
           "__compat": {
-            "description": "<code>lab()</code> (Lab color model)",
+            "description": "`lab()` (Lab color model)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/lab",
             "spec_url": "https://drafts.csswg.org/css-color/#lab-colors",
             "tags": [
@@ -603,7 +624,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -613,7 +635,7 @@
           },
           "mixed_type_parameters": {
             "__compat": {
-              "description": "Mix <code>&lt;percentage&gt;</code> and <code>&lt;number&gt;</code> in parameters",
+              "description": "Mix `&lt;percentage&gt;` and `&lt;number&gt;` in parameters",
               "tags": [
                 "web-features:lab"
               ],
@@ -638,7 +660,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -675,7 +698,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -687,7 +711,7 @@
         },
         "lch": {
           "__compat": {
-            "description": "<code>lch()</code> (LCH color model)",
+            "description": "`lch()` (LCH color model)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/lch",
             "spec_url": "https://drafts.csswg.org/css-color/#lab-colors",
             "tags": [
@@ -714,7 +738,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -724,7 +749,7 @@
           },
           "mixed_type_parameters": {
             "__compat": {
-              "description": "Mix <code>&lt;percentage&gt;</code> and <code>&lt;number&gt;</code> in parameters",
+              "description": "Mix `&lt;percentage&gt;` and `&lt;number&gt;` in parameters",
               "tags": [
                 "web-features:lab"
               ],
@@ -749,7 +774,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -781,14 +807,20 @@
                 "oculus": "mirror",
                 "opera": "mirror",
                 "opera_android": "mirror",
-                "safari": {
-                  "version_added": "16.4",
-                  "partial_implementation": true,
-                  "notes": "Implementation based on older spec version. As a result, calculations with <code>h</code> channel values do not work correctly, requiring values to be specified with units (<code>deg</code>)."
-                },
+                "safari": [
+                  {
+                    "version_added": "18"
+                  },
+                  {
+                    "version_added": "16.4",
+                    "partial_implementation": true,
+                    "notes": "Implementation based on older spec version. As a result, calculations with `h` channel values do not work correctly, requiring values to be specified with units (`deg`)."
+                  }
+                ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -800,7 +832,7 @@
         },
         "light-dark": {
           "__compat": {
-            "description": "<code>light-dark()</code>",
+            "description": "`light-dark()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/light-dark",
             "spec_url": "https://drafts.csswg.org/css-color-5/#light-dark",
             "tags": [
@@ -809,7 +841,7 @@
             "support": {
               "chrome": {
                 "version_added": "123",
-                "impl_url": "https://crbug.com/1490618"
+                "impl_url": "https://crbug.com/40284803"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -829,7 +861,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -843,6 +876,9 @@
             "description": "Named colors",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/named-color",
             "spec_url": "https://drafts.csswg.org/css-color/#named-colors",
+            "tags": [
+              "web-features:named-color"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -857,7 +893,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "3",
-                "notes": "Internet Explorer 8 and later support gray color keywords spelled with an <em>e</em> (<code>grey</code>, <code>darkgrey</code>, <code>darkslategrey</code>, <code>dimgrey</code>, <code>lightgrey</code>, and <code>lightslategrey</code>). Internet Explorer 3 to Internet Explorer 7 only support the keywords spelled with <em>a</em> (<code>gray</code>, <code>darkgray</code>, <code>darkslategray</code>, <code>dimgray</code>, <code>lightgray</code>, and <code>lightslategray</code>)."
+                "notes": "Internet Explorer 8 and later support gray color keywords spelled with an _e_ (`grey`, `darkgrey`, `darkslategrey`, `dimgrey`, `lightgrey`, and `lightslategrey`). Internet Explorer 3 to Internet Explorer 7 only support the keywords spelled with _a_ (`gray`, `darkgray`, `darkslategray`, `dimgray`, `lightgray`, and `lightslategray`)."
               },
               "oculus": "mirror",
               "opera": {
@@ -873,7 +909,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -883,6 +920,9 @@
           },
           "rebeccapurple": {
             "__compat": {
+              "tags": [
+                "web-features:named-color"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "38"
@@ -908,7 +948,54 @@
                   "version_added": "8"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "transparent": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/named-color#transparent",
+              "spec_url": "https://drafts.csswg.org/css-color/#transparent-color",
+              "tags": [
+                "web-features:named-color"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "1"
+                },
+                "chrome_android": "mirror",
+                "edge": {
+                  "version_added": "12"
+                },
+                "firefox": {
+                  "version_added": "3"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": "9"
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": "10"
+                },
+                "opera_android": {
+                  "version_added": "10.1"
+                },
+                "safari": {
+                  "version_added": "3.1"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": {
+                  "version_added": "37"
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -920,7 +1007,7 @@
         },
         "oklab": {
           "__compat": {
-            "description": "<code>oklab()</code> (Oklab color model)",
+            "description": "`oklab()` (Oklab color model)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/oklab",
             "spec_url": "https://drafts.csswg.org/css-color/#ok-lab",
             "tags": [
@@ -947,7 +1034,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -957,7 +1045,7 @@
           },
           "mixed_type_parameters": {
             "__compat": {
-              "description": "Mix <code>&lt;percentage&gt;</code> and <code>&lt;number&gt;</code> in parameters",
+              "description": "Mix `&lt;percentage&gt;` and `&lt;number&gt;` in parameters",
               "tags": [
                 "web-features:oklab"
               ],
@@ -982,7 +1070,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1019,7 +1108,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1031,7 +1121,7 @@
         },
         "oklch": {
           "__compat": {
-            "description": "<code>oklch()</code> (OKLCH color model)",
+            "description": "`oklch()` (OKLCH color model)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/oklch",
             "spec_url": "https://drafts.csswg.org/css-color/#ok-lab",
             "tags": [
@@ -1058,7 +1148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1068,7 +1159,7 @@
           },
           "mixed_type_parameters": {
             "__compat": {
-              "description": "Mix <code>&lt;percentage&gt;</code> and <code>&lt;number&gt;</code> in parameters",
+              "description": "Mix `&lt;percentage&gt;` and `&lt;number&gt;` in parameters",
               "tags": [
                 "web-features:oklab"
               ],
@@ -1093,7 +1184,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1125,14 +1217,20 @@
                 "oculus": "mirror",
                 "opera": "mirror",
                 "opera_android": "mirror",
-                "safari": {
-                  "version_added": "16.4",
-                  "partial_implementation": true,
-                  "notes": "Implementation based on older spec version. As a result, calculations with <code>h</code> channel values do not work correctly, requiring values to be specified with units (<code>deg</code>)."
-                },
+                "safari": [
+                  {
+                    "version_added": "18"
+                  },
+                  {
+                    "version_added": "16.4",
+                    "partial_implementation": true,
+                    "notes": "Implementation based on older spec version. As a result, calculations with `h` channel values do not work correctly, requiring values to be specified with units (`deg`)."
+                  }
+                ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1144,9 +1242,12 @@
         },
         "rgb": {
           "__compat": {
-            "description": "<code>rgb()</code> (RGB color model)",
+            "description": "`rgb()` (RGB color model)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/rgb",
             "spec_url": "https://drafts.csswg.org/css-color/#rgb-functions",
+            "tags": [
+              "web-features:rgb"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1176,7 +1277,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1187,6 +1289,9 @@
           "alpha_parameter": {
             "__compat": {
               "description": "Alpha parameter",
+              "tags": [
+                "web-features:rgb"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "65"
@@ -1208,7 +1313,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1220,6 +1326,9 @@
           "float_values": {
             "__compat": {
               "description": "Float values in parameters",
+              "tags": [
+                "web-features:rgb"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "66"
@@ -1241,7 +1350,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1252,7 +1362,10 @@
           },
           "mixed_type_parameters": {
             "__compat": {
-              "description": "Mix <code>&lt;percentage&gt;</code> and <code>&lt;number&gt;</code> in parameters",
+              "description": "Mix `&lt;percentage&gt;` and `&lt;number&gt;` in parameters",
+              "tags": [
+                "web-features:rgb"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "122"
@@ -1270,11 +1383,12 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": false
+                  "version_added": "18"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1298,7 +1412,7 @@
                   {
                     "version_added": "119",
                     "partial_implementation": true,
-                    "notes": "Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 <code>&lt;number&gt;</code> value). See <a href='https://crbug.com/41490327'>bug 41490327</a>."
+                    "notes": "Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 `&lt;number&gt;` value). See [bug 41490327](https://crbug.com/41490327)."
                   }
                 ],
                 "chrome_android": "mirror",
@@ -1313,14 +1427,20 @@
                 "oculus": "mirror",
                 "opera": "mirror",
                 "opera_android": "mirror",
-                "safari": {
-                  "version_added": "16.4",
-                  "partial_implementation": true,
-                  "notes": "Implementation based on older spec version. As a result, channel value calculations do not work correctly, requiring values to be specified as percentages with units (e.g. 30%, which would be equivalent to a 76.5 <code>&lt;number&gt;</code> value). See <a href='https://webkit.org/b/267647'>bug 267647</a>."
-                },
+                "safari": [
+                  {
+                    "version_added": "18"
+                  },
+                  {
+                    "version_added": "16.4",
+                    "partial_implementation": true,
+                    "notes": "Implementation based on older spec version. As a result, channel value calculations do not work correctly, requiring values to be specified as percentages with units (e.g. 30%, which would be equivalent to a 76.5 `&lt;number&gt;` value). See [bug 267647](https://webkit.org/b/267647)."
+                  }
+                ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1332,6 +1452,9 @@
           "space_separated_parameters": {
             "__compat": {
               "description": "Space-separated rgb() parameters",
+              "tags": [
+                "web-features:rgb"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "65"
@@ -1353,7 +1476,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1365,9 +1489,12 @@
         },
         "rgb_hexadecimal_notation": {
           "__compat": {
-            "description": "RGB hexadecimal notation (<code>#RRGGBB</code>, <code>#RGB</code>, …)",
+            "description": "RGB hexadecimal notation (`#RRGGBB`, `#RGB`, …)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/hex-color",
             "spec_url": "https://drafts.csswg.org/css-color/#hex-notation",
+            "tags": [
+              "web-features:rgb"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1397,7 +1524,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1407,7 +1535,10 @@
           },
           "alpha_hexadecimal_notation": {
             "__compat": {
-              "description": "RGBA hexadecimal notation (<code>#RRGGBBAA</code>, <code>#RGBA</code>)",
+              "description": "RGBA hexadecimal notation (`#RRGGBBAA`, `#RGBA`)",
+              "tags": [
+                "web-features:rgb"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "62"
@@ -1433,7 +1564,8 @@
                   "version_added": "9.3"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1448,6 +1580,9 @@
             "description": "System colors",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/system-color",
             "spec_url": "https://drafts.csswg.org/css-color/#css-system-colors",
+            "tags": [
+              "web-features:system-color"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1477,7 +1612,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1487,11 +1623,14 @@
           },
           "accentcolor_accentcolortext": {
             "__compat": {
-              "description": "<code>AccentColor</code> and <code>AccentColorText</code>",
+              "description": "`AccentColor` and `AccentColorText`",
               "spec_url": [
                 "https://drafts.csswg.org/css-color/#valdef-color-accentcolor",
                 "https://drafts.csswg.org/css-color/#valdef-color-accentcolortext"
               ],
+              "tags": [
+                "web-features:system-color"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "115",
@@ -1521,7 +1660,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1538,6 +1678,9 @@
                 "https://drafts.csswg.org/css-color/#valdef-color-marktext",
                 "https://drafts.csswg.org/css-color/#valdef-color-buttonborder"
               ],
+              "tags": [
+                "web-features:system-color"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -1559,7 +1702,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1568,49 +1712,6 @@
               }
             }
           }
-        },
-        "transparent": {
-          "__compat": {
-            "description": "<code>transparent</code> keyword",
-            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/named-color#transparent",
-            "spec_url": "https://drafts.csswg.org/css-color/#transparent-color",
-            "support": {
-              "chrome": {
-                "version_added": "1"
-              },
-              "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
-              "firefox": {
-                "version_added": "3"
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": "9"
-              },
-              "oculus": "mirror",
-              "opera": {
-                "version_added": "10"
-              },
-              "opera_android": {
-                "version_added": "10.1"
-              },
-              "safari": {
-                "version_added": "3.1"
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": {
-                "version_added": "37"
-              }
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
         }
       }
     }
diff --git a/css/types/cos.json b/css/types/cos.json
index 323f685e4ec57c..794b1260a0f276 100644
--- a/css/types/cos.json
+++ b/css/types/cos.json
@@ -3,7 +3,7 @@
     "types": {
       "cos": {
         "__compat": {
-          "description": "<code>cos()</code>",
+          "description": "`cos()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/cos",
           "spec_url": "https://drafts.csswg.org/css-values/#trig-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/counter.json b/css/types/counter.json
index 7c9b9a99214e68..7a9cacf3f8147f 100644
--- a/css/types/counter.json
+++ b/css/types/counter.json
@@ -3,9 +3,12 @@
     "types": {
       "counter": {
         "__compat": {
-          "description": "<code>counter()</code>",
+          "description": "`counter()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/counter",
           "spec_url": "https://drafts.csswg.org/css-lists/#counter-functions",
+          "tags": [
+            "web-features:counters"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/counters.json b/css/types/counters.json
index 62db557bf65bca..8fea34c4ee9348 100644
--- a/css/types/counters.json
+++ b/css/types/counters.json
@@ -3,9 +3,12 @@
     "types": {
       "counters": {
         "__compat": {
-          "description": "<code>counters()</code>",
+          "description": "`counters()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/counters",
           "spec_url": "https://drafts.csswg.org/css-lists/#counter-functions",
+          "tags": [
+            "web-features:counters"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/dimension.json b/css/types/dimension.json
index 18f0d4cf93172a..3eb44752970962 100644
--- a/css/types/dimension.json
+++ b/css/types/dimension.json
@@ -3,9 +3,12 @@
     "types": {
       "dimension": {
         "__compat": {
-          "description": "<code>&lt;dimension&gt;</code>",
+          "description": "`&lt;dimension&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/dimension",
           "spec_url": "https://drafts.csswg.org/css-values/#dimensions",
+          "tags": [
+            "web-features:width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/easing-function.json b/css/types/easing-function.json
index b9275784d99907..14392f6aeaaa49 100644
--- a/css/types/easing-function.json
+++ b/css/types/easing-function.json
@@ -3,9 +3,12 @@
     "types": {
       "easing-function": {
         "__compat": {
-          "description": "<code>&lt;easing-function&gt;</code>",
+          "description": "`&lt;easing-function&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/easing-function",
           "spec_url": "https://drafts.csswg.org/css-easing/#easing-functions",
+          "tags": [
+            "web-features:cubic-bezier-easing"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,12 @@
         },
         "cubic-bezier": {
           "__compat": {
-            "description": "<code>cubic-bezier()</code> with ordinate ∉ [0,1]",
+            "description": "`cubic-bezier()` with ordinate ∉ [0,1]",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/easing-function/cubic-bezier",
+            "spec_url": "https://drafts.csswg.org/css-easing/#cubic-bezier-easing-functions",
+            "tags": [
+              "web-features:cubic-bezier-easing"
+            ],
             "support": {
               "chrome": {
                 "version_added": "16"
@@ -71,7 +80,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,7 +92,8 @@
         },
         "linear-function": {
           "__compat": {
-            "description": "<code>linear()</code>",
+            "description": "`linear()`",
+            "spec_url": "https://drafts.csswg.org/css-easing/#the-linear-easing-function",
             "tags": [
               "web-features:linear-easing"
             ],
@@ -107,7 +118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -118,7 +130,12 @@
         },
         "steps": {
           "__compat": {
-            "description": "<code>steps()</code> with <code>start</code>, <code>end</code> or no direction",
+            "description": "`steps()` with `start`, `end` or no direction",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/easing-function/steps",
+            "spec_url": "https://drafts.csswg.org/css-easing/#step-easing-functions",
+            "tags": [
+              "web-features:steps-easing"
+            ],
             "support": {
               "chrome": {
                 "version_added": "8"
@@ -146,7 +163,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,7 +174,10 @@
           },
           "jump": {
             "__compat": {
-              "description": "<code>jump-</code> keywords for <code>steps()</code>",
+              "description": "`jump-` keywords for `steps()`",
+              "tags": [
+                "web-features:steps-easing"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "77"
@@ -178,7 +199,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/css/types/exp.json b/css/types/exp.json
index 9d3eaca02405aa..d4787b1eec51ed 100644
--- a/css/types/exp.json
+++ b/css/types/exp.json
@@ -3,7 +3,7 @@
     "types": {
       "exp": {
         "__compat": {
-          "description": "<code>exp()</code>",
+          "description": "`exp()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/exp",
           "spec_url": "https://drafts.csswg.org/css-values/#exponent-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/filter-function.json b/css/types/filter-function.json
index c6fe004228e553..ad33c19d65f8dc 100644
--- a/css/types/filter-function.json
+++ b/css/types/filter-function.json
@@ -3,9 +3,12 @@
     "types": {
       "filter-function": {
         "__compat": {
-          "description": "<code>&lt;filter-function&gt;</code>",
+          "description": "`&lt;filter-function&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#typedef-filter-function",
+          "tags": [
+            "web-features:filter"
+          ],
           "support": {
             "chrome": {
               "version_added": "18"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4.4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,9 +49,12 @@
         },
         "blur": {
           "__compat": {
-            "description": "<code>blur()</code>",
+            "description": "`blur()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/blur",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-blur",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -77,7 +84,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -88,9 +96,12 @@
         },
         "brightness": {
           "__compat": {
-            "description": "<code>brightness()</code>",
+            "description": "`brightness()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/brightness",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-brightness",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -120,7 +131,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -131,9 +143,12 @@
         },
         "contrast": {
           "__compat": {
-            "description": "<code>contrast()</code>",
+            "description": "`contrast()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/contrast",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-contrast",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -163,7 +178,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -174,9 +190,12 @@
         },
         "drop-shadow": {
           "__compat": {
-            "description": "<code>drop-shadow()</code>",
+            "description": "`drop-shadow()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/drop-shadow",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-drop-shadow",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -206,7 +225,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -217,9 +237,12 @@
         },
         "grayscale": {
           "__compat": {
-            "description": "<code>grayscale()</code>",
+            "description": "`grayscale()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/grayscale",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-grayscale",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -249,7 +272,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -260,9 +284,12 @@
         },
         "hue-rotate": {
           "__compat": {
-            "description": "<code>hue-rotate()</code>",
+            "description": "`hue-rotate()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/hue-rotate",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-hue-rotate",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -292,7 +319,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -303,9 +331,12 @@
         },
         "invert": {
           "__compat": {
-            "description": "<code>invert()</code>",
+            "description": "`invert()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/invert",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-invert",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -335,7 +366,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -346,9 +378,12 @@
         },
         "opacity": {
           "__compat": {
-            "description": "<code>opacity()</code>",
+            "description": "`opacity()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/opacity",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-opacity",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -378,7 +413,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -389,9 +425,12 @@
         },
         "saturate": {
           "__compat": {
-            "description": "<code>saturate()</code>",
+            "description": "`saturate()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/saturate",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-saturate",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -421,7 +460,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -432,9 +472,12 @@
         },
         "sepia": {
           "__compat": {
-            "description": "<code>sepia()</code>",
+            "description": "`sepia()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/sepia",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#funcdef-filter-sepia",
+            "tags": [
+              "web-features:filter"
+            ],
             "support": {
               "chrome": {
                 "version_added": "18"
@@ -464,7 +507,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/flex.json b/css/types/flex.json
index 275e1f397becee..28314101aa76ee 100644
--- a/css/types/flex.json
+++ b/css/types/flex.json
@@ -3,7 +3,7 @@
     "types": {
       "flex": {
         "__compat": {
-          "description": "<code>&lt;flex&gt;</code>",
+          "description": "`&lt;flex&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/flex_value",
           "spec_url": "https://drafts.csswg.org/css-grid/#fr-unit",
           "tags": [
@@ -38,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "57"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/global_keywords.json b/css/types/global_keywords.json
index 7fef984d7d9de2..e0e5cdecfd1284 100644
--- a/css/types/global_keywords.json
+++ b/css/types/global_keywords.json
@@ -4,6 +4,9 @@
       "global_keywords": {
         "__compat": {
           "description": "Global keywords",
+          "tags": [
+            "web-features:inherit-value"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +47,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/inherit",
             "spec_url": "https://drafts.csswg.org/css-cascade/#inherit",
+            "tags": [
+              "web-features:inherit-value"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -68,7 +75,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -81,6 +89,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/initial",
             "spec_url": "https://drafts.csswg.org/css-cascade/#initial",
+            "tags": [
+              "web-features:initial-value"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -111,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -124,6 +136,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/revert",
             "spec_url": "https://drafts.csswg.org/css-cascade/#default",
+            "tags": [
+              "web-features:revert-value"
+            ],
             "support": {
               "chrome": {
                 "version_added": "84"
@@ -145,7 +160,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -158,6 +174,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/revert-layer",
             "spec_url": "https://drafts.csswg.org/css-cascade-5/#revert-layer",
+            "tags": [
+              "web-features:cascade-layers"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -179,7 +198,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -192,6 +212,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/unset",
             "spec_url": "https://drafts.csswg.org/css-cascade/#inherit-initial",
+            "tags": [
+              "web-features:unset-value"
+            ],
             "support": {
               "chrome": {
                 "version_added": "41"
@@ -215,7 +238,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/gradient.json b/css/types/gradient.json
new file mode 100644
index 00000000000000..7c0decf8f45592
--- /dev/null
+++ b/css/types/gradient.json
@@ -0,0 +1,1919 @@
+{
+  "css": {
+    "types": {
+      "gradient": {
+        "__compat": {
+          "description": "`&lt;gradient&gt;`",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient",
+          "spec_url": "https://drafts.csswg.org/css-images-4/#gradients",
+          "tags": [
+            "web-features:gradients"
+          ],
+          "support": {
+            "chrome": [
+              {
+                "version_added": "26"
+              },
+              {
+                "prefix": "-webkit-",
+                "version_added": "10"
+              }
+            ],
+            "chrome_android": "mirror",
+            "edge": {
+              "version_added": "12"
+            },
+            "firefox": {
+              "version_added": "3.6",
+              "notes": "Gradients are limited to [`background-image`](https://developer.mozilla.org/docs/Web/CSS/background-image), [`border-image`](https://developer.mozilla.org/docs/Web/CSS/border-image), and [`mask-image`](https://developer.mozilla.org/docs/Web/CSS/mask-image)."
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "prefix": "-ms-",
+              "version_added": "10"
+            },
+            "oculus": "mirror",
+            "opera": [
+              {
+                "version_added": "12.1"
+              },
+              {
+                "prefix": "-webkit-",
+                "version_added": "15"
+              },
+              {
+                "prefix": "-o-",
+                "version_added": "11",
+                "version_removed": "15"
+              }
+            ],
+            "opera_android": [
+              {
+                "version_added": "12.1"
+              },
+              {
+                "prefix": "-webkit-",
+                "version_added": "14"
+              },
+              {
+                "prefix": "-o-",
+                "version_added": "11",
+                "version_removed": "14"
+              }
+            ],
+            "safari": [
+              {
+                "version_added": "7"
+              },
+              {
+                "prefix": "-webkit-",
+                "version_added": "5.1"
+              }
+            ],
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": [
+              {
+                "version_added": "≤37"
+              },
+              {
+                "prefix": "-webkit-",
+                "version_added": "≤37"
+              }
+            ],
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        },
+        "conic-gradient": {
+          "__compat": {
+            "description": "`conic-gradient()`",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/conic-gradient",
+            "spec_url": "https://drafts.csswg.org/css-images-4/#conic-gradients",
+            "tags": [
+              "web-features:conic-gradients"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "69"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "83"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "12.1"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          },
+          "doubleposition": {
+            "__compat": {
+              "description": "Double-position color stops",
+              "tags": [
+                "web-features:conic-gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "72"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "83"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "12.1"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "hue_interpolation_method": {
+            "__compat": {
+              "description": "Hue interpolation method",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_color_space": {
+            "__compat": {
+              "description": "Interpolation color space",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          }
+        },
+        "linear-gradient": {
+          "__compat": {
+            "description": "`linear-gradient()`",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/linear-gradient",
+            "spec_url": "https://drafts.csswg.org/css-images-4/#linear-gradients",
+            "tags": [
+              "web-features:gradients"
+            ],
+            "support": {
+              "chrome": [
+                {
+                  "version_added": "26"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "10"
+                }
+              ],
+              "chrome_android": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
+              "firefox": [
+                {
+                  "version_added": "16"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "49"
+                },
+                {
+                  "prefix": "-moz-",
+                  "version_added": "3.6",
+                  "notes": [
+                    "Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.",
+                    "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                  ]
+                }
+              ],
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": "10",
+                "notes": "Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: [`-ms-filter: progid:DXImageTransform.Microsoft.Gradient()`](https://developer.mozilla.org/docs/Web/CSS/-ms-filter#Gradient)."
+              },
+              "oculus": "mirror",
+              "opera": [
+                {
+                  "version_added": "12.1"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "15",
+                  "notes": "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                },
+                {
+                  "prefix": "-o-",
+                  "version_added": "11",
+                  "version_removed": "15",
+                  "notes": "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                }
+              ],
+              "opera_android": [
+                {
+                  "version_added": "12.1"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "14",
+                  "notes": "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                },
+                {
+                  "prefix": "-o-",
+                  "version_added": "11",
+                  "version_removed": "14",
+                  "notes": "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                }
+              ],
+              "safari": [
+                {
+                  "version_added": "7"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "5.1",
+                  "notes": [
+                    "Safari 4 was supporting an experimental [`-webkit-gradient(linear,…)`](https://developer.apple.com/library/archive/documentation/InternetWeb/Conceptual/SafariVisualEffectsProgGuide/Gradients/Gradient.html) function. It is more limited than the later standard version: you cannot specify both a position and an angle like in `linear-gradient()`. This old outdated syntax is still supported for compatibility purposes.",
+                    "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                  ]
+                }
+              ],
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": [
+                {
+                  "version_added": "≤37"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "≤37"
+                }
+              ],
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          },
+          "doubleposition": {
+            "__compat": {
+              "description": "Double-position color stops",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "71"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "64"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "12.1"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "hue_interpolation_method": {
+            "__compat": {
+              "description": "Hue interpolation method",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_color_space": {
+            "__compat": {
+              "description": "Interpolation color space",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_hints": {
+            "__compat": {
+              "description": "Interpolation Hints / Gradient Midpoints",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "40"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "36"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "premultiplied_gradients": {
+            "__compat": {
+              "description": "Gradients applied to pre-multiplied color space (prevents grays from appearing in gradients with transparency)",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "29"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "36"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "15"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "to": {
+            "__compat": {
+              "description": "`to` keyword",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "26"
+                },
+                "chrome_android": "mirror",
+                "edge": {
+                  "version_added": "12"
+                },
+                "firefox": {
+                  "version_added": "10"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": "10"
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": "12.1"
+                },
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "unitless_0_angle": {
+            "__compat": {
+              "description": "Unitless `0` for &lt;angle&gt;",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "26"
+                },
+                "chrome_android": "mirror",
+                "edge": {
+                  "version_added": "12"
+                },
+                "firefox": [
+                  {
+                    "version_added": "55"
+                  },
+                  {
+                    "version_added": "46",
+                    "partial_implementation": true,
+                    "notes": "Accepted only in `-webkit-linear-gradient()` and `-moz-linear-gradient()`, not `linear-gradient()`."
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": "16"
+                },
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          }
+        },
+        "radial-gradient": {
+          "__compat": {
+            "description": "`radial-gradient()`",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/radial-gradient",
+            "spec_url": "https://drafts.csswg.org/css-images/#radial-gradients",
+            "tags": [
+              "web-features:gradients"
+            ],
+            "support": {
+              "chrome": [
+                {
+                  "version_added": "26"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "13"
+                }
+              ],
+              "chrome_android": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
+              "firefox": [
+                {
+                  "version_added": "16"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "49"
+                },
+                {
+                  "prefix": "-moz-",
+                  "version_added": "3.6",
+                  "notes": "Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`."
+                }
+              ],
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": "10",
+                "notes": "Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: [`-ms-filter: progid:DXImageTransform.Microsoft.Gradient()`](https://developer.mozilla.org/docs/Web/CSS/-ms-filter#Gradient)."
+              },
+              "oculus": "mirror",
+              "opera": [
+                {
+                  "version_added": "12.1"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "15"
+                },
+                {
+                  "prefix": "-o-",
+                  "version_added": "11.6",
+                  "version_removed": "15"
+                }
+              ],
+              "opera_android": [
+                {
+                  "version_added": "12.1"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "14"
+                },
+                {
+                  "prefix": "-o-",
+                  "version_added": "12",
+                  "version_removed": "14"
+                }
+              ],
+              "safari": [
+                {
+                  "version_added": "7"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "5.1",
+                  "notes": "Safari 4 was supporting an experimental [`-webkit-gradient(radial,…)`](https://developer.apple.com/library/archive/documentation/InternetWeb/Conceptual/SafariVisualEffectsProgGuide/Gradients/Gradient.html) function. This old outdated syntax is still supported for compatibility purposes."
+                }
+              ],
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": [
+                {
+                  "version_added": "≤37"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "≤37"
+                }
+              ],
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          },
+          "at": {
+            "__compat": {
+              "description": "`at` syntax",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "26"
+                },
+                "chrome_android": "mirror",
+                "edge": {
+                  "version_added": "12"
+                },
+                "firefox": {
+                  "version_added": "10"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": "10"
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": "11.6"
+                },
+                "opera_android": {
+                  "version_added": "12"
+                },
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "doubleposition": {
+            "__compat": {
+              "description": "Double-position color stops",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "71"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "64"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "12.1"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "hue_interpolation_method": {
+            "__compat": {
+              "description": "Hue interpolation method",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_color_space": {
+            "__compat": {
+              "description": "Interpolation color space",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_hints": {
+            "__compat": {
+              "description": "Interpolation Hints / Gradient Midpoints",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "40"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "36"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "premultiplied_gradients": {
+            "__compat": {
+              "description": "Gradients applied to pre-multiplied color space (prevents grays from appearing in gradients with transparency)",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "29"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "36"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "15"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          }
+        },
+        "repeating-conic-gradient": {
+          "__compat": {
+            "description": "`repeating-conic-gradient()`",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/repeating-conic-gradient",
+            "spec_url": "https://drafts.csswg.org/css-images-4/#repeating-gradients",
+            "tags": [
+              "web-features:conic-gradients"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "69"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "83"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "12.1"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          },
+          "hue_interpolation_method": {
+            "__compat": {
+              "description": "Hue interpolation method",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_color_space": {
+            "__compat": {
+              "description": "Interpolation color space",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          }
+        },
+        "repeating-linear-gradient": {
+          "__compat": {
+            "description": "`repeating-linear-gradient()`",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/repeating-linear-gradient",
+            "spec_url": "https://drafts.csswg.org/css-images/#repeating-gradients",
+            "tags": [
+              "web-features:gradients"
+            ],
+            "support": {
+              "chrome": [
+                {
+                  "version_added": "26"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "10"
+                }
+              ],
+              "chrome_android": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
+              "firefox": [
+                {
+                  "version_added": "16",
+                  "notes": "Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency."
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "49"
+                },
+                {
+                  "prefix": "-moz-",
+                  "version_added": "3.6",
+                  "notes": [
+                    "Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.",
+                    "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                  ]
+                }
+              ],
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": "10",
+                "notes": "Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: [`-ms-filter: progid:DXImageTransform.Microsoft.Gradient()`](https://developer.mozilla.org/docs/Web/CSS/-ms-filter#Gradient)."
+              },
+              "oculus": "mirror",
+              "opera": [
+                {
+                  "version_added": "12.1"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "15",
+                  "notes": "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                },
+                {
+                  "prefix": "-o-",
+                  "version_added": "11",
+                  "version_removed": "15",
+                  "notes": "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                }
+              ],
+              "opera_android": [
+                {
+                  "version_added": "12.1"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "14",
+                  "notes": "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                },
+                {
+                  "prefix": "-o-",
+                  "version_added": "11",
+                  "version_removed": "14",
+                  "notes": "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                }
+              ],
+              "safari": [
+                {
+                  "version_added": "7"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "5.1",
+                  "notes": [
+                    "Safari 4 was supporting an experimental [`-webkit-gradient(linear,…)`](https://developer.apple.com/library/archive/documentation/InternetWeb/Conceptual/SafariVisualEffectsProgGuide/Gradients/Gradient.html) function. It is more limited than the later standard version: you cannot specify both a position and an angle like in `repeating-linear-gradient()`. This old outdated syntax is still supported for compatibility purposes.",
+                    "Considers `&lt;angle&gt;` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right."
+                  ]
+                }
+              ],
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": [
+                {
+                  "version_added": "≤37"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "≤37"
+                }
+              ],
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          },
+          "doubleposition": {
+            "__compat": {
+              "description": "Double-position color stops",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "71"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "64"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "12.1"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "hue_interpolation_method": {
+            "__compat": {
+              "description": "Hue interpolation method",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_color_space": {
+            "__compat": {
+              "description": "Interpolation color space",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_hints": {
+            "__compat": {
+              "description": "Interpolation Hints / Gradient Midpoints",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "40"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "36"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "to": {
+            "__compat": {
+              "description": "`to` keyword",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "26"
+                },
+                "chrome_android": "mirror",
+                "edge": {
+                  "version_added": "12"
+                },
+                "firefox": {
+                  "version_added": "10"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": "10"
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": "12.1"
+                },
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "unitless_0_angle": {
+            "__compat": {
+              "description": "Unitless `0` for &lt;angle&gt;",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "26"
+                },
+                "chrome_android": "mirror",
+                "edge": {
+                  "version_added": "12"
+                },
+                "firefox": [
+                  {
+                    "version_added": "55"
+                  },
+                  {
+                    "version_added": "46",
+                    "partial_implementation": true,
+                    "notes": "Accepted only in `-webkit-repeating-linear-gradient()` and `-moz-repeating-linear-gradient()`, not `repeating-linear-gradient()`."
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": "16"
+                },
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          }
+        },
+        "repeating-radial-gradient": {
+          "__compat": {
+            "description": "`repeating-radial-gradient()`",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/repeating-radial-gradient",
+            "spec_url": "https://drafts.csswg.org/css-images/#repeating-gradients",
+            "tags": [
+              "web-features:gradients"
+            ],
+            "support": {
+              "chrome": [
+                {
+                  "version_added": "26"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "10"
+                }
+              ],
+              "chrome_android": "mirror",
+              "edge": {
+                "version_added": "12"
+              },
+              "firefox": [
+                {
+                  "version_added": "16",
+                  "notes": "Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency."
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "49"
+                },
+                {
+                  "prefix": "-moz-",
+                  "version_added": "3.6",
+                  "notes": "Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`."
+                }
+              ],
+              "firefox_android": [
+                {
+                  "version_added": "16",
+                  "notes": "Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency."
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "49"
+                },
+                {
+                  "prefix": "-moz-",
+                  "version_added": "10",
+                  "notes": "Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`."
+                }
+              ],
+              "ie": {
+                "version_added": "10"
+              },
+              "oculus": "mirror",
+              "opera": [
+                {
+                  "version_added": "12.1"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "15"
+                },
+                {
+                  "prefix": "-o-",
+                  "version_added": "12",
+                  "version_removed": "15"
+                }
+              ],
+              "opera_android": [
+                {
+                  "version_added": "12.1"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "14"
+                },
+                {
+                  "prefix": "-o-",
+                  "version_added": "12",
+                  "version_removed": "14"
+                }
+              ],
+              "safari": [
+                {
+                  "version_added": "7"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "5.1",
+                  "notes": "Safari 4 was supporting an experimental [`-webkit-gradient(radial,…)`](https://developer.apple.com/library/archive/documentation/InternetWeb/Conceptual/SafariVisualEffectsProgGuide/Gradients/Gradient.html) function. This old outdated syntax is still supported for compatibility purposes."
+                }
+              ],
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": [
+                {
+                  "version_added": "4.4"
+                },
+                {
+                  "prefix": "-webkit-",
+                  "version_added": "≤37"
+                }
+              ],
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          },
+          "at": {
+            "__compat": {
+              "description": "`at` syntax",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "26"
+                },
+                "chrome_android": "mirror",
+                "edge": {
+                  "version_added": "12"
+                },
+                "firefox": [
+                  {
+                    "version_added": "16",
+                    "notes": "Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency."
+                  },
+                  {
+                    "prefix": "-webkit-",
+                    "version_added": "49"
+                  },
+                  {
+                    "prefix": "-moz-",
+                    "version_added": "10",
+                    "notes": "Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`."
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": "10"
+                },
+                "oculus": "mirror",
+                "opera": [
+                  {
+                    "version_added": "15"
+                  },
+                  {
+                    "prefix": "-o-",
+                    "version_added": "12",
+                    "version_removed": "15"
+                  }
+                ],
+                "opera_android": [
+                  {
+                    "version_added": "14"
+                  },
+                  {
+                    "prefix": "-o-",
+                    "version_added": "12",
+                    "version_removed": "14"
+                  }
+                ],
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "doubleposition": {
+            "__compat": {
+              "description": "Double-position color stops",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "71"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "64"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "12.1"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "hue_interpolation_method": {
+            "__compat": {
+              "description": "Hue interpolation method",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_color_space": {
+            "__compat": {
+              "description": "Interpolation color space",
+              "tags": [
+                "web-features:gradient-interpolation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "111"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "127",
+                    "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
+                  },
+                  {
+                    "version_added": "121",
+                    "flags": [
+                      {
+                        "type": "preference",
+                        "name": "layout.css.gradient-color-interpolation-method.enabled",
+                        "value_to_set": "true"
+                      }
+                    ],
+                    "impl_url": "https://bugzil.la/1838740"
+                  }
+                ],
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.2"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "interpolation_hints": {
+            "__compat": {
+              "description": "Interpolation Hints / Gradient Midpoints",
+              "tags": [
+                "web-features:gradients"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "40"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "36"
+                },
+                "firefox_android": {
+                  "version_added": "46"
+                },
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "7"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/css/types/hypot.json b/css/types/hypot.json
index 530373888c6366..ae9b77ed360bcc 100644
--- a/css/types/hypot.json
+++ b/css/types/hypot.json
@@ -3,7 +3,7 @@
     "types": {
       "hypot": {
         "__compat": {
-          "description": "<code>hypot()</code>",
+          "description": "`hypot()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/hypot",
           "spec_url": "https://drafts.csswg.org/css-values/#exponent-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/image.json b/css/types/image.json
index fadda0aacc9a23..156125c4314d23 100644
--- a/css/types/image.json
+++ b/css/types/image.json
@@ -3,9 +3,12 @@
     "types": {
       "image": {
         "__compat": {
-          "description": "<code>&lt;image&gt;</code>",
+          "description": "`&lt;image&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image",
           "spec_url": "https://drafts.csswg.org/css-images/#image-values",
+          "tags": [
+            "web-features:gradients"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,16 +47,19 @@
         },
         "cross-fade": {
           "__compat": {
-            "description": "<code>cross-fade()</code>",
+            "description": "`cross-fade()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/cross-fade",
             "spec_url": "https://drafts.csswg.org/css-images-4/#cross-fade-function",
+            "tags": [
+              "web-features:cross-fade"
+            ],
             "support": {
               "chrome": {
                 "prefix": "-webkit-",
                 "version_added": "17",
                 "notes": [
                   "Supports the original dual-image with percentage implementation only.",
-                  "See <a href='https://crbug.com/614906'>bug 614906</a> for supporting the unprefixed <code>cross-fade()</code> function."
+                  "See [bug 40470742](https://crbug.com/40470742) for supporting the unprefixed `cross-fade()` function."
                 ]
               },
               "chrome_android": "mirror",
@@ -91,7 +98,8 @@
                 }
               ],
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -102,9 +110,12 @@
         },
         "element": {
           "__compat": {
-            "description": "<code>element()</code>",
+            "description": "`element()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/element",
             "spec_url": "https://drafts.csswg.org/css-images-4/#element-notation",
+            "tags": [
+              "web-features:element"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -121,14 +132,14 @@
                   "version_added": "29",
                   "version_removed": "57",
                   "partial_implementation": true,
-                  "notes": "<code>-moz-element()</code> is limited to <a href='https://developer.mozilla.org/docs/Web/CSS/background-image'><code>background-image</code></a>, <a href='https://developer.mozilla.org/docs/Web/CSS/background'><code>background</code></a>, <a href='https://developer.mozilla.org/docs/Web/CSS/border-image'><code>border-image</code></a> and <a href='https://developer.mozilla.org/docs/Web/CSS/border-image-source'><code>border-image-source</code></a>."
+                  "notes": "`-moz-element()` is limited to [`background-image`](https://developer.mozilla.org/docs/Web/CSS/background-image), [`background`](https://developer.mozilla.org/docs/Web/CSS/background), [`border-image`](https://developer.mozilla.org/docs/Web/CSS/border-image) and [`border-image-source`](https://developer.mozilla.org/docs/Web/CSS/border-image-source)."
                 },
                 {
                   "prefix": "-moz-",
                   "version_added": "4",
                   "version_removed": "29",
                   "partial_implementation": true,
-                  "notes": "<code>-moz-element()</code> is limited to <a href='https://developer.mozilla.org/docs/Web/CSS/background-image'><code>background-image</code></a> and <a href='https://developer.mozilla.org/docs/Web/CSS/background'><code>background</code></a>."
+                  "notes": "`-moz-element()` is limited to [`background-image`](https://developer.mozilla.org/docs/Web/CSS/background-image) and [`background`](https://developer.mozilla.org/docs/Web/CSS/background)."
                 }
               ],
               "firefox_android": [
@@ -141,14 +152,14 @@
                   "version_added": "29",
                   "version_removed": "60",
                   "partial_implementation": true,
-                  "notes": "<code>-moz-element()</code> is limited to <a href='https://developer.mozilla.org/docs/Web/CSS/background-image'><code>background-image</code></a>, <a href='https://developer.mozilla.org/docs/Web/CSS/background'><code>background</code></a>, <a href='https://developer.mozilla.org/docs/Web/CSS/border-image'><code>border-image</code></a> and <a href='https://developer.mozilla.org/docs/Web/CSS/border-image-source'><code>border-image-source</code></a>."
+                  "notes": "`-moz-element()` is limited to [`background-image`](https://developer.mozilla.org/docs/Web/CSS/background-image), [`background`](https://developer.mozilla.org/docs/Web/CSS/background), [`border-image`](https://developer.mozilla.org/docs/Web/CSS/border-image) and [`border-image-source`](https://developer.mozilla.org/docs/Web/CSS/border-image-source)."
                 },
                 {
                   "prefix": "-moz-",
                   "version_added": "4",
                   "version_removed": "29",
                   "partial_implementation": true,
-                  "notes": "<code>-moz-element()</code> is limited to <a href='https://developer.mozilla.org/docs/Web/CSS/background-image'><code>background-image</code></a> and <a href='https://developer.mozilla.org/docs/Web/CSS/background'><code>background</code></a>."
+                  "notes": "`-moz-element()` is limited to [`background-image`](https://developer.mozilla.org/docs/Web/CSS/background-image) and [`background`](https://developer.mozilla.org/docs/Web/CSS/background)."
                 }
               ],
               "ie": {
@@ -162,7 +173,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -171,1835 +183,9 @@
             }
           }
         },
-        "gradient": {
-          "__compat": {
-            "description": "<code>&lt;gradient&gt;</code>",
-            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient",
-            "spec_url": "https://drafts.csswg.org/css-images-4/#gradients",
-            "support": {
-              "chrome": [
-                {
-                  "version_added": "26"
-                },
-                {
-                  "prefix": "-webkit-",
-                  "version_added": "10"
-                }
-              ],
-              "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
-              "firefox": {
-                "version_added": "3.6",
-                "notes": "Gradients are limited to <a href='https://developer.mozilla.org/docs/Web/CSS/background-image'><code>background-image</code></a>, <a href='https://developer.mozilla.org/docs/Web/CSS/border-image'><code>border-image</code></a>, and <a href='https://developer.mozilla.org/docs/Web/CSS/mask-image'><code>mask-image</code></a>."
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "prefix": "-ms-",
-                "version_added": "10"
-              },
-              "oculus": "mirror",
-              "opera": [
-                {
-                  "version_added": "12.1"
-                },
-                {
-                  "prefix": "-webkit-",
-                  "version_added": "15"
-                },
-                {
-                  "prefix": "-o-",
-                  "version_added": "11",
-                  "version_removed": "15"
-                }
-              ],
-              "opera_android": [
-                {
-                  "version_added": "12.1"
-                },
-                {
-                  "prefix": "-webkit-",
-                  "version_added": "14"
-                },
-                {
-                  "prefix": "-o-",
-                  "version_added": "11",
-                  "version_removed": "14"
-                }
-              ],
-              "safari": [
-                {
-                  "version_added": "7"
-                },
-                {
-                  "prefix": "-webkit-",
-                  "version_added": "5.1"
-                }
-              ],
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": [
-                {
-                  "version_added": "≤37"
-                },
-                {
-                  "prefix": "-webkit-",
-                  "version_added": "≤37"
-                }
-              ]
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": false
-            }
-          },
-          "conic-gradient": {
-            "__compat": {
-              "description": "<code>conic-gradient()</code>",
-              "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/conic-gradient",
-              "spec_url": "https://drafts.csswg.org/css-images-4/#conic-gradients",
-              "tags": [
-                "web-features:conic-gradients"
-              ],
-              "support": {
-                "chrome": {
-                  "version_added": "69"
-                },
-                "chrome_android": "mirror",
-                "edge": "mirror",
-                "firefox": {
-                  "version_added": "83"
-                },
-                "firefox_android": "mirror",
-                "ie": {
-                  "version_added": false
-                },
-                "oculus": "mirror",
-                "opera": "mirror",
-                "opera_android": "mirror",
-                "safari": {
-                  "version_added": "12.1"
-                },
-                "safari_ios": "mirror",
-                "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
-              },
-              "status": {
-                "experimental": false,
-                "standard_track": true,
-                "deprecated": false
-              }
-            },
-            "doubleposition": {
-              "__compat": {
-                "description": "Double-position color stops",
-                "tags": [
-                  "web-features:conic-gradients"
-                ],
-                "support": {
-                  "chrome": {
-                    "version_added": "72"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "83"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "12.1"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "hue_interpolation_method": {
-              "__compat": {
-                "description": "Hue interpolation method",
-                "tags": [
-                  "web-features:conic-gradients"
-                ],
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "interpolation_color_space": {
-              "__compat": {
-                "description": "Interpolation color space",
-                "tags": [
-                  "web-features:conic-gradients"
-                ],
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            }
-          },
-          "linear-gradient": {
-            "__compat": {
-              "description": "<code>linear-gradient()</code>",
-              "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/linear-gradient",
-              "spec_url": "https://drafts.csswg.org/css-images-4/#linear-gradients",
-              "support": {
-                "chrome": [
-                  {
-                    "version_added": "26"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "10"
-                  }
-                ],
-                "chrome_android": "mirror",
-                "edge": {
-                  "version_added": "12"
-                },
-                "firefox": [
-                  {
-                    "version_added": "16"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "49"
-                  },
-                  {
-                    "prefix": "-moz-",
-                    "version_added": "3.6",
-                    "notes": [
-                      "Since Firefox 42, the prefixed version of gradients can be disabled by setting <code>layout.css.prefixes.gradients</code> to <code>false</code>.",
-                      "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                    ]
-                  }
-                ],
-                "firefox_android": "mirror",
-                "ie": {
-                  "version_added": "10",
-                  "notes": "Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: <code><a href='https://developer.mozilla.org/docs/Web/CSS/-ms-filter#Gradient'>-ms-filter: progid:DXImageTransform.Microsoft.Gradient()</a></code>."
-                },
-                "oculus": "mirror",
-                "opera": [
-                  {
-                    "version_added": "12.1"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "15",
-                    "notes": "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                  },
-                  {
-                    "prefix": "-o-",
-                    "version_added": "11",
-                    "version_removed": "15",
-                    "notes": "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                  }
-                ],
-                "opera_android": [
-                  {
-                    "version_added": "12.1"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "14",
-                    "notes": "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                  },
-                  {
-                    "prefix": "-o-",
-                    "version_added": "11",
-                    "version_removed": "14",
-                    "notes": "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                  }
-                ],
-                "safari": [
-                  {
-                    "version_added": "7"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "5.1",
-                    "notes": [
-                      "Safari 4 was supporting an experimental <code><a href='https://developer.apple.com/library/archive/documentation/InternetWeb/Conceptual/SafariVisualEffectsProgGuide/Gradients/Gradient.html'>-webkit-gradient(linear,…)</a></code> function. It is more limited than the later standard version: you cannot specify both a position and an angle like in <code>linear-gradient()</code>. This old outdated syntax is still supported for compatibility purposes.",
-                      "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                    ]
-                  }
-                ],
-                "safari_ios": "mirror",
-                "samsunginternet_android": "mirror",
-                "webview_android": [
-                  {
-                    "version_added": "≤37"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "≤37"
-                  }
-                ]
-              },
-              "status": {
-                "experimental": false,
-                "standard_track": true,
-                "deprecated": false
-              }
-            },
-            "doubleposition": {
-              "__compat": {
-                "description": "Double-position color stops",
-                "support": {
-                  "chrome": {
-                    "version_added": "71"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "64"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "12.1"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "hue_interpolation_method": {
-              "__compat": {
-                "description": "Hue interpolation method",
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "interpolation_color_space": {
-              "__compat": {
-                "description": "Interpolation color space",
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "interpolation_hints": {
-              "__compat": {
-                "description": "Interpolation Hints / Gradient Midpoints",
-                "support": {
-                  "chrome": {
-                    "version_added": "40"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "36"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "premultiplied_gradients": {
-              "__compat": {
-                "description": "Gradients applied to pre-multiplied color space (prevents grays from appearing in gradients with transparency)",
-                "support": {
-                  "chrome": {
-                    "version_added": "29"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "36"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "15"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "to": {
-              "__compat": {
-                "description": "<code>to</code> keyword",
-                "support": {
-                  "chrome": {
-                    "version_added": "26"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": {
-                    "version_added": "12"
-                  },
-                  "firefox": {
-                    "version_added": "10"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": "10"
-                  },
-                  "oculus": "mirror",
-                  "opera": {
-                    "version_added": "12.1"
-                  },
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "unitless_0_angle": {
-              "__compat": {
-                "description": "Unitless <code>0</code> for &lt;angle&gt;",
-                "support": {
-                  "chrome": {
-                    "version_added": "26"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": {
-                    "version_added": "12"
-                  },
-                  "firefox": [
-                    {
-                      "version_added": "55"
-                    },
-                    {
-                      "version_added": "46",
-                      "partial_implementation": true,
-                      "notes": "Accepted only in <code>-webkit-linear-gradient()</code> and <code>-moz-linear-gradient()</code>, not <code>linear-gradient()</code>."
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": {
-                    "version_added": "16"
-                  },
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            }
-          },
-          "radial-gradient": {
-            "__compat": {
-              "description": "<code>radial-gradient()</code>",
-              "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/radial-gradient",
-              "spec_url": "https://drafts.csswg.org/css-images/#radial-gradients",
-              "support": {
-                "chrome": [
-                  {
-                    "version_added": "26"
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-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "13"
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-                ],
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-                  {
-                    "version_added": "16"
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-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "49"
-                  },
-                  {
-                    "prefix": "-moz-",
-                    "version_added": "3.6",
-                    "notes": "Since Firefox 42, the prefixed version of gradients can be disabled by setting <code>layout.css.prefixes.gradients</code> to <code>false</code>."
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-                  "version_added": "10",
-                  "notes": "Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: <code><a href='https://developer.mozilla.org/docs/Web/CSS/-ms-filter#Gradient'>-ms-filter: progid:DXImageTransform.Microsoft.Gradient()</a></code>."
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-                  {
-                    "version_added": "12.1"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "15"
-                  },
-                  {
-                    "prefix": "-o-",
-                    "version_added": "11.6",
-                    "version_removed": "15"
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-                ],
-                "opera_android": [
-                  {
-                    "version_added": "12.1"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "14"
-                  },
-                  {
-                    "prefix": "-o-",
-                    "version_added": "12",
-                    "version_removed": "14"
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-                ],
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-                  {
-                    "version_added": "7"
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-                    "notes": "Safari 4 was supporting an experimental <code><a href='https://developer.apple.com/library/archive/documentation/InternetWeb/Conceptual/SafariVisualEffectsProgGuide/Gradients/Gradient.html'>-webkit-gradient(radial,…)</a></code> function. This old outdated syntax is still supported for compatibility purposes."
-                  }
-                ],
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-                  {
-                    "version_added": "≤37"
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-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "≤37"
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-              },
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-                "standard_track": true,
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-                "description": "<code>at</code> syntax",
-                "support": {
-                  "chrome": {
-                    "version_added": "26"
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-                  "chrome_android": "mirror",
-                  "edge": {
-                    "version_added": "12"
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-                    "version_added": "10"
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-                  "ie": {
-                    "version_added": "10"
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-                    "version_added": "11.6"
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-                  "opera_android": {
-                    "version_added": "12"
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-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
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-                  "experimental": false,
-                  "standard_track": true,
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-                "description": "Double-position color stops",
-                "support": {
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-                    "version_added": "71"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "64"
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-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
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-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "12.1"
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-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
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-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
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-                "description": "Hue interpolation method",
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
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-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
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-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
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-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
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-                "description": "Interpolation color space",
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
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-              }
-            },
-            "interpolation_hints": {
-              "__compat": {
-                "description": "Interpolation Hints / Gradient Midpoints",
-                "support": {
-                  "chrome": {
-                    "version_added": "40"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "36"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "premultiplied_gradients": {
-              "__compat": {
-                "description": "Gradients applied to pre-multiplied color space (prevents grays from appearing in gradients with transparency)",
-                "support": {
-                  "chrome": {
-                    "version_added": "29"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "36"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "15"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            }
-          },
-          "repeating-conic-gradient": {
-            "__compat": {
-              "description": "<code>repeating-conic-gradient()</code>",
-              "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/repeating-conic-gradient",
-              "spec_url": "https://drafts.csswg.org/css-images-4/#repeating-gradients",
-              "tags": [
-                "web-features:conic-gradients"
-              ],
-              "support": {
-                "chrome": {
-                  "version_added": "69"
-                },
-                "chrome_android": "mirror",
-                "edge": "mirror",
-                "firefox": {
-                  "version_added": "83"
-                },
-                "firefox_android": "mirror",
-                "ie": {
-                  "version_added": false
-                },
-                "oculus": "mirror",
-                "opera": "mirror",
-                "opera_android": "mirror",
-                "safari": {
-                  "version_added": "12.1"
-                },
-                "safari_ios": "mirror",
-                "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
-              },
-              "status": {
-                "experimental": false,
-                "standard_track": true,
-                "deprecated": false
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-            },
-            "hue_interpolation_method": {
-              "__compat": {
-                "description": "Hue interpolation method",
-                "tags": [
-                  "web-features:conic-gradients"
-                ],
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
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-              }
-            },
-            "interpolation_color_space": {
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-                "description": "Interpolation color space",
-                "tags": [
-                  "web-features:conic-gradients"
-                ],
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            }
-          },
-          "repeating-linear-gradient": {
-            "__compat": {
-              "description": "<code>repeating-linear-gradient()</code>",
-              "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/repeating-linear-gradient",
-              "spec_url": "https://drafts.csswg.org/css-images/#repeating-gradients",
-              "support": {
-                "chrome": [
-                  {
-                    "version_added": "26"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "10"
-                  }
-                ],
-                "chrome_android": "mirror",
-                "edge": {
-                  "version_added": "12"
-                },
-                "firefox": [
-                  {
-                    "version_added": "16",
-                    "notes": "Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency."
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "49"
-                  },
-                  {
-                    "prefix": "-moz-",
-                    "version_added": "3.6",
-                    "notes": [
-                      "Since Firefox 42, the prefixed version of gradients can be disabled by setting <code>layout.css.prefixes.gradients</code> to <code>false</code>.",
-                      "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                    ]
-                  }
-                ],
-                "firefox_android": "mirror",
-                "ie": {
-                  "version_added": "10",
-                  "notes": "Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: <code><a href='https://developer.mozilla.org/docs/Web/CSS/-ms-filter#Gradient'>-ms-filter: progid:DXImageTransform.Microsoft.Gradient()</a></code>."
-                },
-                "oculus": "mirror",
-                "opera": [
-                  {
-                    "version_added": "12.1"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "15",
-                    "notes": "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                  },
-                  {
-                    "prefix": "-o-",
-                    "version_added": "11",
-                    "version_removed": "15",
-                    "notes": "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                  }
-                ],
-                "opera_android": [
-                  {
-                    "version_added": "12.1"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "14",
-                    "notes": "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                  },
-                  {
-                    "prefix": "-o-",
-                    "version_added": "11",
-                    "version_removed": "14",
-                    "notes": "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                  }
-                ],
-                "safari": [
-                  {
-                    "version_added": "7"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "5.1",
-                    "notes": [
-                      "Safari 4 was supporting an experimental <code><a href='https://developer.apple.com/library/archive/documentation/InternetWeb/Conceptual/SafariVisualEffectsProgGuide/Gradients/Gradient.html'>-webkit-gradient(linear,…)</a></code> function. It is more limited than the later standard version: you cannot specify both a position and an angle like in <code>repeating-linear-gradient()</code>. This old outdated syntax is still supported for compatibility purposes.",
-                      "Considers <code>&lt;angle&gt;</code> to start to the right, instead of the top. I.e. it considered an angle of <code>0deg</code> as a direction indicator pointing to the right."
-                    ]
-                  }
-                ],
-                "safari_ios": "mirror",
-                "samsunginternet_android": "mirror",
-                "webview_android": [
-                  {
-                    "version_added": "≤37"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "≤37"
-                  }
-                ]
-              },
-              "status": {
-                "experimental": false,
-                "standard_track": true,
-                "deprecated": false
-              }
-            },
-            "doubleposition": {
-              "__compat": {
-                "description": "Double-position color stops",
-                "support": {
-                  "chrome": {
-                    "version_added": "71"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "64"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "12.1"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "hue_interpolation_method": {
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-                "description": "Hue interpolation method",
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
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-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "interpolation_color_space": {
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-                "description": "Interpolation color space",
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "interpolation_hints": {
-              "__compat": {
-                "description": "Interpolation Hints / Gradient Midpoints",
-                "support": {
-                  "chrome": {
-                    "version_added": "40"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "36"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "to": {
-              "__compat": {
-                "description": "<code>to</code> keyword",
-                "support": {
-                  "chrome": {
-                    "version_added": "26"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": {
-                    "version_added": "12"
-                  },
-                  "firefox": {
-                    "version_added": "10"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": "10"
-                  },
-                  "oculus": "mirror",
-                  "opera": {
-                    "version_added": "12.1"
-                  },
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "unitless_0_angle": {
-              "__compat": {
-                "description": "Unitless <code>0</code> for &lt;angle&gt;",
-                "support": {
-                  "chrome": {
-                    "version_added": "26"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": {
-                    "version_added": "12"
-                  },
-                  "firefox": [
-                    {
-                      "version_added": "55"
-                    },
-                    {
-                      "version_added": "46",
-                      "partial_implementation": true,
-                      "notes": "Accepted only in <code>-webkit-repeating-linear-gradient()</code> and <code>-moz-repeating-linear-gradient()</code>, not <code>repeating-linear-gradient()</code>."
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": {
-                    "version_added": "16"
-                  },
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            }
-          },
-          "repeating-radial-gradient": {
-            "__compat": {
-              "description": "<code>repeating-radial-gradient()</code>",
-              "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/repeating-radial-gradient",
-              "spec_url": "https://drafts.csswg.org/css-images/#repeating-gradients",
-              "support": {
-                "chrome": [
-                  {
-                    "version_added": "26"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "10"
-                  }
-                ],
-                "chrome_android": "mirror",
-                "edge": {
-                  "version_added": "12"
-                },
-                "firefox": [
-                  {
-                    "version_added": "16",
-                    "notes": "Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency."
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "49"
-                  },
-                  {
-                    "prefix": "-moz-",
-                    "version_added": "3.6",
-                    "notes": "Since Firefox 42, the prefixed version of gradients can be disabled by setting <code>layout.css.prefixes.gradients</code> to <code>false</code>."
-                  }
-                ],
-                "firefox_android": [
-                  {
-                    "version_added": "16",
-                    "notes": "Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency."
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "49"
-                  },
-                  {
-                    "prefix": "-moz-",
-                    "version_added": "10",
-                    "notes": "Since Firefox 42, the prefixed version of gradients can be disabled by setting <code>layout.css.prefixes.gradients</code> to <code>false</code>."
-                  }
-                ],
-                "ie": {
-                  "version_added": "10"
-                },
-                "oculus": "mirror",
-                "opera": [
-                  {
-                    "version_added": "12.1"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "15"
-                  },
-                  {
-                    "prefix": "-o-",
-                    "version_added": "12",
-                    "version_removed": "15"
-                  }
-                ],
-                "opera_android": [
-                  {
-                    "version_added": "12.1"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "14"
-                  },
-                  {
-                    "prefix": "-o-",
-                    "version_added": "12",
-                    "version_removed": "14"
-                  }
-                ],
-                "safari": [
-                  {
-                    "version_added": "7"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "5.1",
-                    "notes": "Safari 4 was supporting an experimental <code><a href='https://developer.apple.com/library/archive/documentation/InternetWeb/Conceptual/SafariVisualEffectsProgGuide/Gradients/Gradient.html'>-webkit-gradient(radial,…)</a></code> function. This old outdated syntax is still supported for compatibility purposes."
-                  }
-                ],
-                "safari_ios": "mirror",
-                "samsunginternet_android": "mirror",
-                "webview_android": [
-                  {
-                    "version_added": "4.4"
-                  },
-                  {
-                    "prefix": "-webkit-",
-                    "version_added": "≤37"
-                  }
-                ]
-              },
-              "status": {
-                "experimental": false,
-                "standard_track": true,
-                "deprecated": false
-              }
-            },
-            "at": {
-              "__compat": {
-                "description": "<code>at</code> syntax",
-                "support": {
-                  "chrome": {
-                    "version_added": "26"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": {
-                    "version_added": "12"
-                  },
-                  "firefox": [
-                    {
-                      "version_added": "16",
-                      "notes": "Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency."
-                    },
-                    {
-                      "prefix": "-webkit-",
-                      "version_added": "49"
-                    },
-                    {
-                      "prefix": "-moz-",
-                      "version_added": "10",
-                      "notes": "Since Firefox 42, the prefixed version of gradients can be disabled by setting <code>layout.css.prefixes.gradients</code> to <code>false</code>."
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": "10"
-                  },
-                  "oculus": "mirror",
-                  "opera": [
-                    {
-                      "version_added": "15"
-                    },
-                    {
-                      "prefix": "-o-",
-                      "version_added": "12",
-                      "version_removed": "15"
-                    }
-                  ],
-                  "opera_android": [
-                    {
-                      "version_added": "14"
-                    },
-                    {
-                      "prefix": "-o-",
-                      "version_added": "12",
-                      "version_removed": "14"
-                    }
-                  ],
-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "doubleposition": {
-              "__compat": {
-                "description": "Double-position color stops",
-                "support": {
-                  "chrome": {
-                    "version_added": "71"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "64"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "12.1"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "hue_interpolation_method": {
-              "__compat": {
-                "description": "Hue interpolation method",
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "interpolation_color_space": {
-              "__compat": {
-                "description": "Interpolation color space",
-                "support": {
-                  "chrome": {
-                    "version_added": "111"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": [
-                    {
-                      "version_added": "127",
-                      "impl_url": "https://hg.mozilla.org/mozilla-central/rev/c2620aeeeb85"
-                    },
-                    {
-                      "version_added": "121",
-                      "flags": [
-                        {
-                          "type": "preference",
-                          "name": "layout.css.gradient-color-interpolation-method.enabled",
-                          "value_to_set": "true"
-                        }
-                      ],
-                      "impl_url": "https://bugzil.la/1838740"
-                    }
-                  ],
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "16.2"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            },
-            "interpolation_hints": {
-              "__compat": {
-                "description": "Interpolation Hints / Gradient Midpoints",
-                "support": {
-                  "chrome": {
-                    "version_added": "40"
-                  },
-                  "chrome_android": "mirror",
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "36"
-                  },
-                  "firefox_android": {
-                    "version_added": "46"
-                  },
-                  "ie": {
-                    "version_added": false
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "7"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
-            }
-          }
-        },
-        "image": {
-          "__compat": {
-            "description": "<code>image()</code>",
-            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image/image",
-            "spec_url": "https://drafts.csswg.org/css-images-4/#image-notation",
-            "support": {
-              "chrome": {
-                "version_added": false
-              },
-              "chrome_android": "mirror",
-              "edge": "mirror",
-              "firefox": {
-                "version_added": false,
-                "notes": "See <a href='https://bugzil.la/703217'>bug 703217</a>."
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": false
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": false
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
-        },
         "image-set": {
           "__compat": {
-            "description": "<code>image-set()</code>",
+            "description": "`image-set()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image/image-set",
             "spec_url": "https://drafts.csswg.org/css-images-4/#image-set-notation",
             "tags": [
@@ -2019,7 +205,7 @@
                   "version_added": "20",
                   "version_removed": "113",
                   "partial_implementation": true,
-                  "notes": "Support for <code>url</code> images only and <code>x</code> is the only supported resolution unit."
+                  "notes": "Support for `url` images only and `x` is the only supported resolution unit."
                 }
               ],
               "chrome_android": "mirror",
@@ -2036,7 +222,7 @@
                   "version_added": "88",
                   "version_removed": "89",
                   "partial_implementation": true,
-                  "notes": "The <code>type()</code> function is not supported as an argument to <code>image-set()</code>."
+                  "notes": "The `type()` function is not supported as an argument to `image-set()`."
                 }
               ],
               "firefox_android": "mirror",
@@ -2058,32 +244,33 @@
                   "version_added": "14",
                   "version_removed": "17",
                   "partial_implementation": true,
-                  "notes": "The <code>type()</code> function is not supported as an argument to <code>image-set()</code>."
+                  "notes": "The `type()` function is not supported as an argument to `image-set()`."
                 },
                 {
                   "prefix": "-webkit-",
                   "version_added": "14",
                   "version_removed": "17",
                   "partial_implementation": true,
-                  "notes": "The <code>type()</code> function is not supported as an argument to <code>image-set()</code>."
+                  "notes": "The `type()` function is not supported as an argument to `image-set()`."
                 },
                 {
                   "version_added": "10.1",
                   "version_removed": "14",
                   "partial_implementation": true,
-                  "notes": "Support for <code>url</code> images only and <code>x</code> is the only supported resolution unit."
+                  "notes": "Support for `url` images only and `x` is the only supported resolution unit."
                 },
                 {
                   "prefix": "-webkit-",
                   "version_added": "6",
                   "version_removed": "14",
                   "partial_implementation": true,
-                  "notes": "Support for <code>url</code> images only and <code>x</code> is the only supported resolution unit."
+                  "notes": "Support for `url` images only and `x` is the only supported resolution unit."
                 }
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2094,7 +281,7 @@
         },
         "paint": {
           "__compat": {
-            "description": "<code>paint()</code>",
+            "description": "`paint()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image/paint",
             "spec_url": "https://drafts.css-houdini.org/css-paint-api/#paint-notation",
             "tags": [
@@ -2125,7 +312,8 @@
               "samsunginternet_android": {
                 "version_added": "9.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2135,7 +323,10 @@
           },
           "additional_parameters": {
             "__compat": {
-              "description": "Supports additional parameters to pass to the <code>paintWorklet</code>",
+              "description": "Supports additional parameters to pass to the `paintWorklet`",
+              "tags": [
+                "web-features:paint"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -2159,7 +350,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/css/types/integer.json b/css/types/integer.json
index 6d3a79a156ded1..dbe7eaeb27e797 100644
--- a/css/types/integer.json
+++ b/css/types/integer.json
@@ -3,9 +3,12 @@
     "types": {
       "integer": {
         "__compat": {
-          "description": "<code>&lt;integer&gt;</code>",
+          "description": "`&lt;integer&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/integer",
           "spec_url": "https://drafts.csswg.org/css-values/#integers",
+          "tags": [
+            "web-features:z-index"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/length-percentage.json b/css/types/length-percentage.json
index d7c7ba829e40f4..041c5c30282e38 100644
--- a/css/types/length-percentage.json
+++ b/css/types/length-percentage.json
@@ -3,9 +3,12 @@
     "types": {
       "length-percentage": {
         "__compat": {
-          "description": "<code>&lt;length-percentage&gt;</code>",
+          "description": "`&lt;length-percentage&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/length-percentage",
           "spec_url": "https://drafts.csswg.org/css-values/#mixed-percentages",
+          "tags": [
+            "web-features:width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/length.json b/css/types/length.json
index 9deb63a5644a0c..d31e97d0ae657c 100644
--- a/css/types/length.json
+++ b/css/types/length.json
@@ -3,9 +3,12 @@
     "types": {
       "length": {
         "__compat": {
-          "description": "<code>&lt;length&gt;</code>",
+          "description": "`&lt;length&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/length",
           "spec_url": "https://drafts.csswg.org/css-values/#lengths",
+          "tags": [
+            "web-features:width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,10 @@
         },
         "Q": {
           "__compat": {
-            "description": "<code>Q</code> unit",
+            "description": "`Q` unit",
+            "tags": [
+              "web-features:q-unit"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,7 +86,7 @@
         },
         "cap": {
           "__compat": {
-            "description": "<code>cap</code> unit",
+            "description": "`cap` unit",
             "tags": [
               "web-features:cap"
             ],
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,7 +123,10 @@
         },
         "ch": {
           "__compat": {
-            "description": "<code>ch</code> unit",
+            "description": "`ch` unit",
+            "tags": [
+              "web-features:ch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "27"
@@ -126,8 +138,8 @@
               "firefox": {
                 "version_added": "1",
                 "notes": [
-                  "From Firefox 1 to Firefox 3, <code>ch</code> was the width of the <em>M</em> character.",
-                  "From Firefox 1 to Firefox 3, <code>ch</code> did not work with <a href='https://developer.mozilla.org/docs/Web/CSS/border-width'><code>border-width</code></a> and <a href='https://developer.mozilla.org/docs/Web/CSS/outline-width'><code>outline-width</code></a> CSS properties."
+                  "From Firefox 1 to Firefox 3, `ch` was the width of the _M_ character.",
+                  "From Firefox 1 to Firefox 3, `ch` did not work with [`border-width`](https://developer.mozilla.org/docs/Web/CSS/border-width) and [`outline-width`](https://developer.mozilla.org/docs/Web/CSS/outline-width) CSS properties."
                 ]
               },
               "firefox_android": {
@@ -144,7 +156,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -155,7 +168,7 @@
         },
         "container_query_length_units": {
           "__compat": {
-            "description": "Container query length units <code>cqw</code>, <code>cqh</code>, <code>cqi</code>, <code>cqb</code>, <code>cqmin</code>, <code>cqmax</code>",
+            "description": "Container query length units `cqw`, `cqh`, `cqi`, `cqb`, `cqmin`, `cqmax`",
             "tags": [
               "web-features:container-queries"
             ],
@@ -180,7 +193,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -191,7 +205,10 @@
         },
         "em": {
           "__compat": {
-            "description": "<code>em</code> unit",
+            "description": "`em` unit",
+            "tags": [
+              "web-features:em-unit"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -221,7 +238,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "1"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -232,7 +250,10 @@
         },
         "ex": {
           "__compat": {
-            "description": "<code>ex</code> unit",
+            "description": "`ex` unit",
+            "tags": [
+              "web-features:ex"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -260,7 +281,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -271,7 +293,7 @@
         },
         "ic": {
           "__compat": {
-            "description": "<code>ic</code> unit",
+            "description": "`ic` unit",
             "tags": [
               "web-features:ic"
             ],
@@ -296,7 +318,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -307,7 +330,7 @@
         },
         "lh": {
           "__compat": {
-            "description": "<code>lh</code> unit",
+            "description": "`lh` unit",
             "spec_url": "https://drafts.csswg.org/css-values/#lh",
             "tags": [
               "web-features:lh"
@@ -333,7 +356,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -344,8 +368,11 @@
         },
         "rcap": {
           "__compat": {
-            "description": "<code>rcap</code> unit",
+            "description": "`rcap` unit",
             "spec_url": "https://drafts.csswg.org/css-values/#rcap",
+            "tags": [
+              "web-features:rcap"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -367,7 +394,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -378,8 +406,11 @@
         },
         "rch": {
           "__compat": {
-            "description": "<code>rch</code> unit",
+            "description": "`rch` unit",
             "spec_url": "https://drafts.csswg.org/css-values/#rch",
+            "tags": [
+              "web-features:rch"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -401,7 +432,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -412,7 +444,10 @@
         },
         "rem": {
           "__compat": {
-            "description": "<code>rem</code> unit",
+            "description": "`rem` unit",
+            "tags": [
+              "web-features:rem"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -444,7 +479,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -455,8 +491,11 @@
         },
         "rex": {
           "__compat": {
-            "description": "<code>rex</code> unit",
+            "description": "`rex` unit",
             "spec_url": "https://drafts.csswg.org/css-values/#rex",
+            "tags": [
+              "web-features:rex"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -478,7 +517,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -489,8 +529,11 @@
         },
         "ric": {
           "__compat": {
-            "description": "<code>ric</code> unit",
+            "description": "`ric` unit",
             "spec_url": "https://drafts.csswg.org/css-values/#ric",
+            "tags": [
+              "web-features:ric"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -512,7 +555,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -523,8 +567,11 @@
         },
         "rlh": {
           "__compat": {
-            "description": "<code>rlh</code> unit",
+            "description": "`rlh` unit",
             "spec_url": "https://drafts.csswg.org/css-values/#rlh",
+            "tags": [
+              "web-features:rlh"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -546,7 +593,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -557,7 +605,7 @@
         },
         "vb": {
           "__compat": {
-            "description": "<code>vb</code> unit",
+            "description": "`vb` unit",
             "tags": [
               "web-features:viewport-unit-variants"
             ],
@@ -582,7 +630,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -593,7 +642,7 @@
         },
         "vh": {
           "__compat": {
-            "description": "<code>vh</code> unit",
+            "description": "`vh` unit",
             "tags": [
               "web-features:viewport-units"
             ],
@@ -607,7 +656,7 @@
               },
               "firefox": {
                 "version_added": "19",
-                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
+                "notes": "Starting with version 21, viewport-percentage lengths are invalid in `@page`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -623,7 +672,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -634,7 +684,7 @@
         },
         "vi": {
           "__compat": {
-            "description": "<code>vi</code> unit",
+            "description": "`vi` unit",
             "tags": [
               "web-features:viewport-unit-variants"
             ],
@@ -659,7 +709,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -670,7 +721,7 @@
         },
         "viewport_percentage_units_dynamic": {
           "__compat": {
-            "description": "<code>dvb</code>, <code>dvh</code>, <code>dvi</code>, <code>dvmax</code>, <code>dvmin</code>, <code>dvw</code> units",
+            "description": "`dvb`, `dvh`, `dvi`, `dvmax`, `dvmin`, `dvw` units",
             "tags": [
               "web-features:viewport-unit-variants"
             ],
@@ -695,7 +746,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -706,7 +758,7 @@
         },
         "viewport_percentage_units_large": {
           "__compat": {
-            "description": "<code>lvb</code>, <code>lvh</code>, <code>lvi</code>, <code>lvmax</code>, <code>lvmin</code>, <code>lvw</code> units",
+            "description": "`lvb`, `lvh`, `lvi`, `lvmax`, `lvmin`, `lvw` units",
             "tags": [
               "web-features:viewport-unit-variants"
             ],
@@ -731,7 +783,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -742,7 +795,7 @@
         },
         "viewport_percentage_units_small": {
           "__compat": {
-            "description": "<code>svb</code>, <code>svh</code>, <code>svi</code>, <code>svmax</code>, <code>svmin</code>, <code>svw</code> units",
+            "description": "`svb`, `svh`, `svi`, `svmax`, `svmin`, `svw` units",
             "tags": [
               "web-features:viewport-unit-variants"
             ],
@@ -767,7 +820,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -778,7 +832,7 @@
         },
         "vmax": {
           "__compat": {
-            "description": "<code>vmax</code> unit",
+            "description": "`vmax` unit",
             "tags": [
               "web-features:viewport-units"
             ],
@@ -792,7 +846,7 @@
               },
               "firefox": {
                 "version_added": "19",
-                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
+                "notes": "Starting with version 21, viewport-percentage lengths are invalid in `@page`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -808,7 +862,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "1.5"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -819,7 +874,7 @@
         },
         "vmin": {
           "__compat": {
-            "description": "<code>vmin</code> unit",
+            "description": "`vmin` unit",
             "tags": [
               "web-features:viewport-units"
             ],
@@ -839,7 +894,7 @@
               ],
               "firefox": {
                 "version_added": "19",
-                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
+                "notes": "Starting with version 21, viewport-percentage lengths are invalid in `@page`."
               },
               "firefox_android": "mirror",
               "ie": [
@@ -859,7 +914,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -870,7 +926,7 @@
         },
         "vw": {
           "__compat": {
-            "description": "<code>vw</code> unit",
+            "description": "`vw` unit",
             "tags": [
               "web-features:viewport-units"
             ],
@@ -884,7 +940,7 @@
               },
               "firefox": {
                 "version_added": "19",
-                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
+                "notes": "Starting with version 21, viewport-percentage lengths are invalid in `@page`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -900,7 +956,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/line-style.json b/css/types/line-style.json
index e07f99dce8aeba..2382e70a5275f3 100644
--- a/css/types/line-style.json
+++ b/css/types/line-style.json
@@ -3,9 +3,12 @@
     "types": {
       "line-style": {
         "__compat": {
-          "description": "<code>&lt;line-style&gt;</code>",
+          "description": "`&lt;line-style&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/line-style",
           "spec_url": "https://drafts.csswg.org/css-backgrounds/#typedef-line-style",
+          "tags": [
+            "web-features:borders"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/log.json b/css/types/log.json
index 620f0538cffc40..f485f9af88db50 100644
--- a/css/types/log.json
+++ b/css/types/log.json
@@ -3,7 +3,7 @@
     "types": {
       "log": {
         "__compat": {
-          "description": "<code>log()</code>",
+          "description": "`log()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/log",
           "spec_url": "https://drafts.csswg.org/css-values/#exponent-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/max.json b/css/types/max.json
index 3bb46cf5b9ce4c..1a008348b6f445 100644
--- a/css/types/max.json
+++ b/css/types/max.json
@@ -3,7 +3,7 @@
     "types": {
       "max": {
         "__compat": {
-          "description": "<code>max()</code>",
+          "description": "`max()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/max",
           "spec_url": "https://drafts.csswg.org/css-values/#calc-notation",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/min.json b/css/types/min.json
index 80d6bfa5ae08de..f4cfc5a2106975 100644
--- a/css/types/min.json
+++ b/css/types/min.json
@@ -3,7 +3,7 @@
     "types": {
       "min": {
         "__compat": {
-          "description": "<code>min()</code>",
+          "description": "`min()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/min",
           "spec_url": "https://drafts.csswg.org/css-values/#calc-notation",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/mod.json b/css/types/mod.json
index 815ec5624b1616..83d8c79ce2cd7f 100644
--- a/css/types/mod.json
+++ b/css/types/mod.json
@@ -3,7 +3,7 @@
     "types": {
       "mod": {
         "__compat": {
-          "description": "<code>mod()</code>",
+          "description": "`mod()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/mod",
           "spec_url": "https://drafts.csswg.org/css-values/#funcdef-mod",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/number.json b/css/types/number.json
index fca41964f9cd14..2be64d79c9a9ac 100644
--- a/css/types/number.json
+++ b/css/types/number.json
@@ -3,9 +3,12 @@
     "types": {
       "number": {
         "__compat": {
-          "description": "<code>&lt;number&gt;</code>",
+          "description": "`&lt;number&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/number",
           "spec_url": "https://drafts.csswg.org/css-values/#numbers",
+          "tags": [
+            "web-features:opacity"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         "scientific_notation": {
           "__compat": {
             "description": "Scientific notation",
+            "tags": [
+              "web-features:opacity"
+            ],
             "support": {
               "chrome": {
                 "version_added": "43"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/overflow.json b/css/types/overflow.json
index 880bce1014338a..4422b3a3244b5b 100644
--- a/css/types/overflow.json
+++ b/css/types/overflow.json
@@ -22,7 +22,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "4",
-              "notes": "From version 4 to 6, Internet Explorer enlarges an element with <code>visible</code> (default value) to fit the content inside it."
+              "notes": "From version 4 to 6, Internet Explorer enlarges an element with `visible` (default value) to fit the content inside it."
             },
             "oculus": "mirror",
             "opera": {
@@ -36,7 +36,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,7 +80,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -117,12 +119,13 @@
               "samsunginternet_android": {
                 "version_added": "4.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": true,
-              "deprecated": false
+              "deprecated": true
             }
           }
         }
diff --git a/css/types/percentage.json b/css/types/percentage.json
index 8277aa9783bf35..bfa30373ef9163 100644
--- a/css/types/percentage.json
+++ b/css/types/percentage.json
@@ -3,9 +3,12 @@
     "types": {
       "percentage": {
         "__compat": {
-          "description": "<code>&lt;percentage&gt;</code>",
+          "description": "`&lt;percentage&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/percentage",
           "spec_url": "https://drafts.csswg.org/css-values/#percentages",
+          "tags": [
+            "web-features:width-height"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/position.json b/css/types/position.json
index a0948bb0f51ae5..8d188701bf5004 100644
--- a/css/types/position.json
+++ b/css/types/position.json
@@ -3,9 +3,12 @@
     "types": {
       "position": {
         "__compat": {
-          "description": "<code>&lt;position&gt;</code>",
+          "description": "`&lt;position&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/position_value",
           "spec_url": "https://drafts.csswg.org/css-values/#position",
+          "tags": [
+            "web-features:transforms2d"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -33,7 +36,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         "four_value_syntax": {
           "__compat": {
             "description": "Four-value syntax for offset from any edge",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,7 +88,10 @@
         },
         "keyword_value_syntax": {
           "__compat": {
-            "description": "Syntax combining a keyword and <code>&lt;length&gt;</code> or <code>&lt;percentage&gt;</code>",
+            "description": "Syntax combining a keyword and `&lt;length&gt;` or `&lt;percentage&gt;`",
+            "tags": [
+              "web-features:transforms2d"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -108,7 +119,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/pow.json b/css/types/pow.json
index 85ddf549821cea..d25c018cc3734c 100644
--- a/css/types/pow.json
+++ b/css/types/pow.json
@@ -3,7 +3,7 @@
     "types": {
       "pow": {
         "__compat": {
-          "description": "<code>pow()</code>",
+          "description": "`pow()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/pow",
           "spec_url": "https://drafts.csswg.org/css-values/#exponent-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/ratio.json b/css/types/ratio.json
index 72ac676cfb5341..a0d3de0935ac23 100644
--- a/css/types/ratio.json
+++ b/css/types/ratio.json
@@ -3,9 +3,12 @@
     "types": {
       "ratio": {
         "__compat": {
-          "description": "<code>&lt;ratio&gt;</code>",
+          "description": "`&lt;ratio&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/ratio",
           "spec_url": "https://drafts.csswg.org/mediaqueries/#values",
+          "tags": [
+            "web-features:media-queries"
+          ],
           "support": {
             "chrome": {
               "version_added": "3"
@@ -33,7 +36,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         "number_value": {
           "__compat": {
             "description": "Accepts a single &lt;number&gt; as a value.",
+            "tags": [
+              "web-features:media-queries"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -72,7 +79,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/css/types/ray.json b/css/types/ray.json
index d51c37eb731b9d..b782851a8757d1 100644
--- a/css/types/ray.json
+++ b/css/types/ray.json
@@ -3,9 +3,12 @@
     "types": {
       "ray": {
         "__compat": {
-          "description": "<code>ray()</code>",
+          "description": "`ray()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/ray",
           "spec_url": "https://drafts.fxtf.org/motion/#ray-function",
+          "tags": [
+            "web-features:motion-path"
+          ],
           "support": {
             "chrome": {
               "version_added": "116"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,7 +41,10 @@
         },
         "position": {
           "__compat": {
-            "description": "<code>at &lt;position&gt;</code>",
+            "description": "`at &lt;position&gt;`",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -59,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,7 +78,10 @@
         },
         "size": {
           "__compat": {
-            "description": "<code>&lt;size&gt;</code>",
+            "description": "`&lt;size&gt;`",
+            "tags": [
+              "web-features:motion-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -92,7 +103,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/rem.json b/css/types/rem.json
index a667780c9102f5..eba8d9c94e2147 100644
--- a/css/types/rem.json
+++ b/css/types/rem.json
@@ -3,7 +3,7 @@
     "types": {
       "rem": {
         "__compat": {
-          "description": "<code>rem()</code>",
+          "description": "`rem()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/rem",
           "spec_url": "https://drafts.csswg.org/css-values/#funcdef-rem",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/resolution.json b/css/types/resolution.json
index 19007a6f2e3e20..f618e5a60b45c7 100644
--- a/css/types/resolution.json
+++ b/css/types/resolution.json
@@ -3,9 +3,12 @@
     "types": {
       "resolution": {
         "__compat": {
-          "description": "<code>&lt;resolution&gt;</code>",
+          "description": "`&lt;resolution&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/resolution",
           "spec_url": "https://drafts.csswg.org/css-values/#resolution",
+          "tags": [
+            "web-features:resolution"
+          ],
           "support": {
             "chrome": {
               "version_added": "29"
@@ -21,7 +24,7 @@
               {
                 "version_added": "3.5",
                 "partial_implementation": true,
-                "notes": "Supports <a href='https://developer.mozilla.org/docs/Web/CSS/integer'><code>&lt;integer&gt;</code></a> values only."
+                "notes": "Supports [`&lt;integer&gt;`](https://developer.mozilla.org/docs/Web/CSS/integer) values only."
               }
             ],
             "firefox_android": "mirror",
@@ -36,12 +39,12 @@
               "version_added": "10.1"
             },
             "safari": {
-              "version_added": false,
-              "impl_url": "https://webkit.org/b/78087"
+              "version_added": "16"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,7 +54,10 @@
         },
         "dpcm": {
           "__compat": {
-            "description": "<code>dpcm</code> unit",
+            "description": "`dpcm` unit",
+            "tags": [
+              "web-features:resolution"
+            ],
             "support": {
               "chrome": {
                 "version_added": "29"
@@ -87,11 +93,12 @@
                 }
               ],
               "safari": {
-                "version_added": false
+                "version_added": "16"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -102,7 +109,10 @@
         },
         "dpi": {
           "__compat": {
-            "description": "<code>dpi</code> unit",
+            "description": "`dpi` unit",
+            "tags": [
+              "web-features:resolution"
+            ],
             "support": {
               "chrome": {
                 "version_added": "29"
@@ -138,11 +148,12 @@
                 }
               ],
               "safari": {
-                "version_added": false
+                "version_added": "16"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -153,7 +164,10 @@
         },
         "dppx": {
           "__compat": {
-            "description": "<code>dppx</code> unit",
+            "description": "`dppx` unit",
+            "tags": [
+              "web-features:resolution"
+            ],
             "support": {
               "chrome": {
                 "version_added": "29"
@@ -177,11 +191,12 @@
                 "version_added": "12.1"
               },
               "safari": {
-                "version_added": false
+                "version_added": "16"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -192,7 +207,10 @@
         },
         "x": {
           "__compat": {
-            "description": "<code>x</code> unit",
+            "description": "`x` unit",
+            "tags": [
+              "web-features:resolution"
+            ],
             "support": {
               "chrome": {
                 "version_added": "68"
@@ -210,11 +228,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "16"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/round.json b/css/types/round.json
index 064152ae9b08f1..1fc9dcc7c1cb22 100644
--- a/css/types/round.json
+++ b/css/types/round.json
@@ -3,7 +3,7 @@
     "types": {
       "round": {
         "__compat": {
-          "description": "<code>round()</code>",
+          "description": "`round()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/round",
           "spec_url": "https://drafts.csswg.org/css-values/#funcdef-round",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/shape.json b/css/types/shape.json
index 1ca88f4bba6ce5..dcda9adb03ab3a 100644
--- a/css/types/shape.json
+++ b/css/types/shape.json
@@ -3,7 +3,7 @@
     "types": {
       "shape": {
         "__compat": {
-          "description": "<code>&lt;shape&gt;</code>",
+          "description": "`&lt;shape&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/shape",
           "spec_url": "https://drafts.csswg.org/css2/#value-def-shape",
           "support": {
@@ -33,7 +33,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +44,7 @@
         },
         "rect": {
           "__compat": {
-            "description": "<code>rect()</code>",
+            "description": "`rect()`",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -58,7 +59,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "5.5",
-                "notes": "For Internet Explorer versions 5.5 through 7, the <code>rect()</code> function uses spaces (instead of commas) to separate parameters. For Internet Explorer 8 and later versions, only the standard comma-separated syntax is supported."
+                "notes": "For Internet Explorer versions 5.5 through 7, the `rect()` function uses spaces (instead of commas) to separate parameters. For Internet Explorer 8 and later versions, only the standard comma-separated syntax is supported."
               },
               "oculus": "mirror",
               "opera": {
@@ -72,7 +73,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/sign.json b/css/types/sign.json
index c48d745335605e..61ac1004f7fc34 100644
--- a/css/types/sign.json
+++ b/css/types/sign.json
@@ -3,7 +3,7 @@
     "types": {
       "sign": {
         "__compat": {
-          "description": "<code>sign()</code>",
+          "description": "`sign()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/sign",
           "spec_url": "https://drafts.csswg.org/css-values/#sign-funcs",
           "tags": [
@@ -12,7 +12,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/1407476"
+              "impl_url": "https://crbug.com/40253181"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -31,7 +31,10 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": {
+              "version_added": false
+            }
           },
           "status": {
             "experimental": false,
diff --git a/css/types/sin.json b/css/types/sin.json
index 4db191d7177e59..69d28bb0e87c58 100644
--- a/css/types/sin.json
+++ b/css/types/sin.json
@@ -3,7 +3,7 @@
     "types": {
       "sin": {
         "__compat": {
-          "description": "<code>sin()</code>",
+          "description": "`sin()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/sin",
           "spec_url": "https://drafts.csswg.org/css-values/#trig-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/sqrt.json b/css/types/sqrt.json
index d5397683788f4b..f6f14a5674b726 100644
--- a/css/types/sqrt.json
+++ b/css/types/sqrt.json
@@ -3,7 +3,7 @@
     "types": {
       "sqrt": {
         "__compat": {
-          "description": "<code>sqrt()</code>",
+          "description": "`sqrt()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/sqrt",
           "spec_url": "https://drafts.csswg.org/css-values/#exponent-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/string.json b/css/types/string.json
index 4a1852710d610a..2e3af08baa30fc 100644
--- a/css/types/string.json
+++ b/css/types/string.json
@@ -3,9 +3,12 @@
     "types": {
       "string": {
         "__compat": {
-          "description": "<code>&lt;string&gt;</code>",
+          "description": "`&lt;string&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/string",
           "spec_url": "https://drafts.csswg.org/css-values/#strings",
+          "tags": [
+            "web-features:content"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,10 @@
         },
         "unicode_escaped_characters": {
           "__compat": {
-            "description": "Unicode escaped characters (<code>\\xx</code>)",
+            "description": "Unicode escaped characters (`\\xx`)",
+            "tags": [
+              "web-features:content"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -75,7 +82,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/tan.json b/css/types/tan.json
index 4fcf9d5e6f5939..c7e2a3e0259935 100644
--- a/css/types/tan.json
+++ b/css/types/tan.json
@@ -3,7 +3,7 @@
     "types": {
       "tan": {
         "__compat": {
-          "description": "<code>tan()</code>",
+          "description": "`tan()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/tan",
           "spec_url": "https://drafts.csswg.org/css-values/#trig-funcs",
           "tags": [
@@ -30,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/time.json b/css/types/time.json
index 52af3776c1f5b9..6d3d7eacb372bc 100644
--- a/css/types/time.json
+++ b/css/types/time.json
@@ -3,9 +3,12 @@
     "types": {
       "time": {
         "__compat": {
-          "description": "<code>&lt;time&gt;</code>",
+          "description": "`&lt;time&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/time",
           "spec_url": "https://drafts.csswg.org/css-values/#time",
+          "tags": [
+            "web-features:animations-css"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/transform-function.json b/css/types/transform-function.json
index c7814a0f649af5..2f4a41da045d29 100644
--- a/css/types/transform-function.json
+++ b/css/types/transform-function.json
@@ -3,7 +3,7 @@
     "types": {
       "transform-function": {
         "__compat": {
-          "description": "<code>&lt;transform-function&gt;</code>",
+          "description": "`&lt;transform-function&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function",
           "spec_url": [
             "https://drafts.csswg.org/css-transforms/#transform-functions",
@@ -44,7 +44,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -54,7 +55,7 @@
         },
         "matrix": {
           "__compat": {
-            "description": "<code>matrix()</code>",
+            "description": "`matrix()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/matrix",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-matrix",
             "tags": [
@@ -70,7 +71,7 @@
               },
               "firefox": {
                 "version_added": "3.5",
-                "notes": "Before Firefox 16, the translation values of <code>matrix()</code> could be <a href='https://developer.mozilla.org/docs/Web/CSS/length'><code>&lt;length&gt;</code></a>s, in addition to the standard <a href='https://developer.mozilla.org/docs/Web/CSS/number'><code>&lt;number&gt;</code></a>."
+                "notes": "Before Firefox 16, the translation values of `matrix()` could be [`&lt;length&gt;`](https://developer.mozilla.org/docs/Web/CSS/length)s, in addition to the standard [`&lt;number&gt;`](https://developer.mozilla.org/docs/Web/CSS/number)."
               },
               "firefox_android": {
                 "version_added": "4"
@@ -94,7 +95,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,7 +107,7 @@
         },
         "matrix3d": {
           "__compat": {
-            "description": "<code>matrix3d()</code>",
+            "description": "`matrix3d()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/matrix3d",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-matrix3d",
             "tags": [
@@ -121,7 +123,7 @@
               },
               "firefox": {
                 "version_added": "10",
-                "notes": "Before Firefox 16, the translation values of <code>matrix3d()</code> could be <a href='https://developer.mozilla.org/docs/Web/CSS/length'><code>&lt;length&gt;</code></a>s, in addition to the standard <a href='https://developer.mozilla.org/docs/Web/CSS/number'><code>&lt;number&gt;</code></a>."
+                "notes": "Before Firefox 16, the translation values of `matrix3d()` could be [`&lt;length&gt;`](https://developer.mozilla.org/docs/Web/CSS/length)s, in addition to the standard [`&lt;number&gt;`](https://developer.mozilla.org/docs/Web/CSS/number)."
               },
               "firefox_android": {
                 "version_added": "10"
@@ -139,7 +141,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +153,7 @@
         },
         "perspective": {
           "__compat": {
-            "description": "<code>perspective()</code>",
+            "description": "`perspective()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/perspective",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-perspective",
             "tags": [
@@ -181,18 +184,57 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
+          },
+          "none": {
+            "__compat": {
+              "description": "`perspective(none)`",
+              "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-perspective",
+              "tags": [
+                "web-features:transforms3d"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "97"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "93"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "15.4"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
           }
         },
         "rotate": {
           "__compat": {
-            "description": "<code>rotate()</code>",
+            "description": "`rotate()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotate",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-rotate",
             "tags": [
@@ -229,7 +271,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -240,7 +283,7 @@
         },
         "rotate3d": {
           "__compat": {
-            "description": "<code>rotate3d()</code>",
+            "description": "`rotate3d()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotate3d",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-rotate3d",
             "tags": [
@@ -271,7 +314,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -282,7 +326,7 @@
         },
         "rotateX": {
           "__compat": {
-            "description": "<code>rotateX()</code>",
+            "description": "`rotateX()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotateX",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-rotatex",
             "tags": [
@@ -313,7 +357,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -324,7 +369,7 @@
         },
         "rotateY": {
           "__compat": {
-            "description": "<code>rotateY()</code>",
+            "description": "`rotateY()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotateY",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-rotatey",
             "tags": [
@@ -355,7 +400,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -366,7 +412,7 @@
         },
         "rotateZ": {
           "__compat": {
-            "description": "<code>rotateZ()</code>",
+            "description": "`rotateZ()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotateZ",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-rotatez",
             "tags": [
@@ -397,7 +443,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -408,7 +455,7 @@
         },
         "scale": {
           "__compat": {
-            "description": "<code>scale()</code>",
+            "description": "`scale()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scale",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-scale",
             "tags": [
@@ -445,7 +492,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -456,7 +504,7 @@
         },
         "scale3d": {
           "__compat": {
-            "description": "<code>scale3d()</code>",
+            "description": "`scale3d()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scale3d",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-scale3d",
             "tags": [
@@ -487,7 +535,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -498,7 +547,7 @@
         },
         "scaleX": {
           "__compat": {
-            "description": "<code>scaleX()</code>",
+            "description": "`scaleX()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scaleX",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-scalex",
             "tags": [
@@ -535,7 +584,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -546,7 +596,7 @@
         },
         "scaleY": {
           "__compat": {
-            "description": "<code>scaleY()</code>",
+            "description": "`scaleY()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scaleY",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-scaley",
             "tags": [
@@ -583,7 +633,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -594,7 +645,7 @@
         },
         "scaleZ": {
           "__compat": {
-            "description": "<code>scaleZ()</code>",
+            "description": "`scaleZ()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scaleZ",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-scalez",
             "tags": [
@@ -625,7 +676,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -636,7 +688,7 @@
         },
         "skew": {
           "__compat": {
-            "description": "<code>skew()</code>",
+            "description": "`skew()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/skew",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-skew",
             "tags": [
@@ -652,7 +704,7 @@
               },
               "firefox": {
                 "version_added": "3.5",
-                "notes": "Firefox 14 removed experimental support for <code>skew()</code>, but it was reintroduced in Firefox 15."
+                "notes": "Firefox 14 removed experimental support for `skew()`, but it was reintroduced in Firefox 15."
               },
               "firefox_android": {
                 "version_added": "4"
@@ -676,7 +728,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -687,7 +740,7 @@
         },
         "skewX": {
           "__compat": {
-            "description": "<code>skewX()</code>",
+            "description": "`skewX()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/skewX",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-skewx",
             "tags": [
@@ -724,7 +777,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -735,7 +789,7 @@
         },
         "skewY": {
           "__compat": {
-            "description": "<code>skewY()</code>",
+            "description": "`skewY()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/skewY",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-skewy",
             "tags": [
@@ -772,7 +826,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -783,7 +838,7 @@
         },
         "translate": {
           "__compat": {
-            "description": "<code>translate()</code>",
+            "description": "`translate()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translate",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-translate",
             "tags": [
@@ -820,7 +875,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -831,7 +887,7 @@
         },
         "translate3d": {
           "__compat": {
-            "description": "<code>translate3d()</code>",
+            "description": "`translate3d()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translate3d",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-translate3d",
             "tags": [
@@ -862,7 +918,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -873,7 +930,7 @@
         },
         "translateX": {
           "__compat": {
-            "description": "<code>translateX()</code>",
+            "description": "`translateX()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translateX",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-translatex",
             "tags": [
@@ -910,7 +967,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -921,7 +979,7 @@
         },
         "translateY": {
           "__compat": {
-            "description": "<code>translateY()</code>",
+            "description": "`translateY()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translateY",
             "spec_url": "https://drafts.csswg.org/css-transforms/#funcdef-transform-translatey",
             "tags": [
@@ -958,7 +1016,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "2"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -969,7 +1028,7 @@
         },
         "translateZ": {
           "__compat": {
-            "description": "<code>translateZ()</code>",
+            "description": "`translateZ()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translateZ",
             "spec_url": "https://drafts.csswg.org/css-transforms-2/#funcdef-translatez",
             "tags": [
@@ -1000,7 +1059,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/url.json b/css/types/url.json
index 9a5032bfdc3339..b1996dfd37d5eb 100644
--- a/css/types/url.json
+++ b/css/types/url.json
@@ -3,9 +3,12 @@
     "types": {
       "url": {
         "__compat": {
-          "description": "<code>&lt;url&gt;</code>",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/url",
+          "description": "`&lt;url&gt;`",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/url_value",
           "spec_url": "https://drafts.csswg.org/css-values/#urls",
+          "tags": [
+            "web-features:font-face"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/docs/data-guidelines/api.md b/docs/data-guidelines/api.md
index 614d4eb7703785..d051a0d845b88d 100644
--- a/docs/data-guidelines/api.md
+++ b/docs/data-guidelines/api.md
@@ -73,9 +73,9 @@ This guideline is based on a discussion in [#11518](https://github.com/mdn/brows
 
 ## Constructors
 
-Name a constructor for an API feature the same as the parent feature (unless the constructor doesn't share the name of its parent feature) and have a description with text in the form of `<code>Name()</code> constructor`.
+Name a constructor for an API feature the same as the parent feature (unless the constructor doesn't share the name of its parent feature) and have a description with text in the form of `` `Name()` constructor ``.
 
-For example, the `ImageData` constructor, `ImageData()`, is represented as `api.ImageData.ImageData`. It has the description `<code>ImageData()</code> constructor`, like this:
+For example, the `ImageData` constructor, `ImageData()`, is represented as `api.ImageData.ImageData`. It has the description `` `ImageData()` constructor ``, like this:
 
 ```json
 {
@@ -84,7 +84,7 @@ For example, the `ImageData` constructor, `ImageData()`, is represented as `api.
       "__compat": {},
       "ImageData": {
         "__compat": {
-          "description": "<code>ImageData()</code> constructor",
+          "description": "`ImageData()` constructor",
           "support": {}
         }
       }
@@ -95,9 +95,9 @@ For example, the `ImageData` constructor, `ImageData()`, is represented as `api.
 
 ## DOM events (`eventname_event`)
 
-Add DOM events as features of their target interfaces, using the name _eventname_\_event with the description text set to `<code>eventname</code> event`. If an event can be sent to multiple interfaces, add the event as a feature of each interface that can receive it.
+Add DOM events as features of their target interfaces, using the name _eventname_\_event with the description text set to `` `eventname` event ``. If an event can be sent to multiple interfaces, add the event as a feature of each interface that can receive it.
 
-For example, the feature for a `focus` event targeting the `Element` interface would be named `focus_event` with the description text `<code>focus</code> event`, like this:
+For example, the feature for a `focus` event targeting the `Element` interface would be named `focus_event` with the description text `` `focus` event ``, like this:
 
 ```json
 {
@@ -106,7 +106,7 @@ For example, the feature for a `focus` event targeting the `Element` interface w
       "__compat": {},
       "focus_event": {
         "__compat": {
-          "description": "<code>focus</code> event",
+          "description": "`focus` event",
           "support": {}
         }
       }
@@ -115,7 +115,7 @@ For example, the feature for a `focus` event targeting the `Element` interface w
 }
 ```
 
-The event handler `onfocus` is represented by the `focus_event` entry. Don't create features for `on` event handler properties. If an implementation doesn't support the event handler property, use `partial_implementation` with the note `"The <code>onfocus</code> event handler property is not supported."`. If only the `on` event handler property is supported and not the event itself, use `"version_added": false`.
+The event handler `onfocus` is represented by the `focus_event` entry. Don't create features for `on` event handler properties. If an implementation doesn't support the event handler property, use `partial_implementation` with the note ``"The `onfocus` event handler property is not supported."``. If only the `on` event handler property is supported and not the event itself, use `"version_added": false`.
 
 If a specification has two sections (the event handler property and the event name), add both specification links.
 
@@ -129,9 +129,9 @@ This practice emerged through several discussions:
 
 ## Permissions API permissions (`permissionname_permission`)
 
-Add [Permissions API](https://developer.mozilla.org/en-US/docs/Web/API/Permissions_API) permissions as subfeatures of [`api.Permissions`](https://developer.mozilla.org/en-US/docs/Web/API/Permissions) using the name _permissionname_\_permission with the description text set to `<code>permissionname</code> permission`.
+Add [Permissions API](https://developer.mozilla.org/en-US/docs/Web/API/Permissions_API) permissions as subfeatures of [`api.Permissions`](https://developer.mozilla.org/en-US/docs/Web/API/Permissions) using the name _permissionname_\_permission with the description text set to `` `permissionname` permission ``.
 
-For example, the Geolocation permission is named `geolocation_permission` with the description text `<code>geolocation</code> permission`, like this:
+For example, the Geolocation permission is named `geolocation_permission` with the description text `` `geolocation` permission ``, like this:
 
 ```json
 {
@@ -140,7 +140,7 @@ For example, the Geolocation permission is named `geolocation_permission` with t
       "__compat": { ... },
       "geolocation_permission": {
         "__compat": {
-          "description": "<code>geolocation</code> permission",
+          "description": "`geolocation` permission",
           "support": { ... }
         }
       }
@@ -153,7 +153,7 @@ This guideline was proposed in [#6156](https://github.com/mdn/browser-compat-dat
 
 ## Methods returning promises (`returns_promise`)
 
-When a method returns a promise in some (but not all) browser releases, use a subfeature named `returns_promise` with description text `Returns a <code>Promise</code>` to record when the method returns a promise.
+When a method returns a promise in some (but not all) browser releases, use a subfeature named `returns_promise` with description text `` Returns a `Promise` `` to record when the method returns a promise.
 
 For example, `HTMLMediaElement`'s `play()` method returns a promise, recorded like this:
 
@@ -166,7 +166,7 @@ For example, `HTMLMediaElement`'s `play()` method returns a promise, recorded li
         "__compat": {},
         "returns_promise": {
           "__compat": {
-            "description": "Returns a <code>Promise</code>",
+            "description": "Returns a `Promise`",
             "support": {}
           }
         }
@@ -283,9 +283,9 @@ This guideline is based on a discussion in [#3463](https://github.com/mdn/browse
 
 ### Static API members
 
-Always append the suffix `_static` to static members of an interface and have a description with text in the form of `<code>json()</code> static method`.
+Always append the suffix `_static` to static members of an interface and have a description with text in the form of `` `json()` static method ``.
 
-For example, the `Response` interface has both, a prototype and static method called `json()`. The static method is represented as `api.Response.json_static`. It has the description `<code>json()</code> static method`. The prototype method is represented as `api.Response.json` without suffix and without description.
+For example, the `Response` interface has both, a prototype and static method called `json()`. The static method is represented as `api.Response.json_static`. It has the description `` `json()` static method ``. The prototype method is represented as `api.Response.json` without suffix and without description.
 
 ```json
 {
@@ -297,7 +297,7 @@ For example, the `Response` interface has both, a prototype and static method ca
       },
       "json_static": {
         "__compat": {
-          "description": "<code>json()</code> static method",
+          "description": "`json()` static method",
           "support": {}
         }
       }
diff --git a/docs/data-guidelines/index.md b/docs/data-guidelines/index.md
index c5f041aba0b860..724972f955d756 100644
--- a/docs/data-guidelines/index.md
+++ b/docs/data-guidelines/index.md
@@ -164,17 +164,17 @@ This guideline was proposed in [#15703](https://github.com/mdn/browser-compat-da
 
 Sometimes it's useful to represent support for specific parameters (also known as arguments) of a function or method, as a subfeature of the function itself. To record data about whether a specific parameter is supported by a function or method, use the following naming conventions:
 
-- For named parameters, use a subfeature named `paramname_parameter` with description text `<code>paramname</code> parameter`. Where _paramname_ is the name of the parameter as it appears on the corresponding function's MDN page (or specification, if no MDN page is available).
+- For named parameters, use a subfeature named `paramname_parameter` with description text `` `paramname` parameter ``. Where _paramname_ is the name of the parameter as it appears on the corresponding function's MDN page (or specification, if no MDN page is available).
 
-  For example, to represent support for the `firstName` parameter of a method `hello(firstName, familyName)`, use a subfeature of `hello` named `firstName_parameter` with the description text `<code>firstName</code> parameter`.
+  For example, to represent support for the `firstName` parameter of a method `hello(firstName, familyName)`, use a subfeature of `hello` named `firstName_parameter` with the description text `` `firstName` parameter ``.
 
 - For unnamed parameters, use a subfeature named `ordinal_parameter` with description text `ordinal parameter` where _ordinal_ is the ordinal number position of the parameter.
 
   For example, to represent support for the second parameter of a method `count()`, use a subfeature of `count` named `second_parameter` and description text `Second parameter`.
 
-- For properties of parameter objects, use a subfeature named `paramname_prop_parameter` with description text `<code>paramname.prop</code> parameter`, where _paramname_ is the name of the parameter object and _prop_ is the name of the property.
+- For properties of parameter objects, use a subfeature named `paramname_prop_parameter` with description text `` `paramname.prop` parameter ``, where _paramname_ is the name of the parameter object and _prop_ is the name of the property.
 
-  For example, to represent support for the `year` property of the `date` parameter to a method `schedule(date)` (as in `schedule({"year": 1970 })`), use a subfeature of `schedule` named `date_year_parameter` with description text `<code>date.year</code> parameter`.
+  For example, to represent support for the `year` property of the `date` parameter to a method `schedule(date)` (as in `schedule({"year": 1970 })`), use a subfeature of `schedule` named `date_year_parameter` with description text `` `date.year` parameter ``.
 
 For existing data which does not follow this guideline, you may modify it to conform with this data, if you are you otherwise updating the data (or data related to it).
 
diff --git a/docs/data-guidelines/tags.md b/docs/data-guidelines/tags.md
index f7d916e98dd196..2995cc41786ec7 100644
--- a/docs/data-guidelines/tags.md
+++ b/docs/data-guidelines/tags.md
@@ -20,11 +20,11 @@ This document governs the list of allowed namespaces in BCD tags.
 
 The currently allowed namespaces are:
 
-- `web-features`: A namespace to tag features belonging to a web platform feature group as defined by [web-platform-dx/web-features](https://github.com/web-platform-dx/web-features/blob/main/feature-group-definitions/README.md). This is an experimental namespace and it might change in breaking ways. Don't rely on it yet.
+- `web-features`: A namespace to tag features belonging to a web platform feature group as defined by [web-platform-dx/web-features](https://github.com/web-platform-dx/web-features/blob/main/features/README.md). This is an experimental namespace and it might change in breaking ways. Don't rely on it yet.
 
 ### The `web-features` namespace
 
-The `web-features` namespace is reserved to tag BCD features that belong to a particular [web platform feature group](https://github.com/web-platform-dx/web-features/blob/main/feature-group-definitions/README.md).
+The `web-features` namespace is reserved to tag BCD features that belong to a particular [web platform feature group](https://github.com/web-platform-dx/web-features/blob/main/features/README.md).
 
 The [web-platform-dx/web-features](https://github.com/web-platform-dx/web-features) project is importing web platform feature groups using this BCD tag. If you want to create a group of BCD features and don't want it to be exported to the web-platform-dx/web-features project, don't use the `web-features` namespace.
 
diff --git a/docs/issue-triage-checklist.md b/docs/issue-triage-checklist.md
index 69c67e299fb7ee..9d3ed9b9c22d63 100644
--- a/docs/issue-triage-checklist.md
+++ b/docs/issue-triage-checklist.md
@@ -6,11 +6,11 @@ Helping process and understand new issues is a great way to help the project. To
 
 Avoid wasting time on issues which are not relevant to the repository by closing them quickly.
 
-- **Is it obvious spam?** Close it without comment and label it [_spam :wastebasket:_](https://github.com/mdn/browser-compat-data/labels/spam%20%3Awastebasket%3A).
-- **Is the issue template wholly incomplete?** Close it and label it [_invalid :no_entry_sign:_](https://github.com/mdn/browser-compat-data/labels/invalid%20%3Ano_entry_sign%3A).
-- **Is the issue template largely incomplete?** Close it with a suggestion to reopen with more details and label it [_invalid :no_entry_sign:_](https://github.com/mdn/browser-compat-data/labels/invalid%20%3Ano_entry_sign%3A).
-- **Is the issue a duplicate of another issue?** Close it with a comment stating it is a duplicate, mentioning the original issue number, and label it [_duplicate :dancing_women:_](https://github.com/mdn/browser-compat-data/labels/duplicate%20%3Adancing_women%3A).
-- **Is the issue a request for web development or other unrelated help?** Close it with a brief explanation of what the repository is for and label it [_invalid :no_entry_sign:_](https://github.com/mdn/browser-compat-data/labels/invalid%20%3Ano_entry_sign%3A).
+- **Is it obvious spam?** Close it without comment and label it [_spam_](https://github.com/mdn/browser-compat-data/labels/spam).
+- **Is the issue template wholly incomplete?** Close it and label it [_invalid_](https://github.com/mdn/browser-compat-data/labels/invalid).
+- **Is the issue template largely incomplete?** Close it with a suggestion to reopen with more details and label it [_invalid_](https://github.com/mdn/browser-compat-data/labels/invalid).
+- **Is the issue a duplicate of another issue?** Close it with a comment stating it is a duplicate, mentioning the original issue number, and label it [_duplicate_](https://github.com/mdn/browser-compat-data/labels/duplicate).
+- **Is the issue a request for web development or other unrelated help?** Close it with a brief explanation of what the repository is for and label it [_invalid_](https://github.com/mdn/browser-compat-data/labels/invalid).
 
 ## Confirm the title, description, and metadata
 
@@ -39,7 +39,7 @@ Make sure the issue is connected to other relevant information.
 
   1. Copy any new information into the original issue.
   2. Comment to thank the reporter and link to the original issue.
-  3. Label the issue [_duplicate :dancing_women:_](https://github.com/mdn/browser-compat-data/labels/duplicate%20%3Adancing_women%3A).
+  3. Label the issue [_duplicate_](https://github.com/mdn/browser-compat-data/labels/duplicate).
   4. Close the issue.
 
 - **If there are related issues, link to them.** Comment or edit the issue description.
@@ -69,6 +69,6 @@ After we've collected all of the required information, make a plan for what to d
 
   Or, if you're not sure what the next step is, ask for ideas, input, or help.
 
-- If applicable, **set labels seeking help**. Use the [_good first issue:100:_](https://github.com/mdn/browser-compat-data/labels/good%20first%20issue%20%3A100%3A) or [_help wanted :sos:_](https://github.com/mdn/browser-compat-data/labels/help%20wanted%20%3Asos%3A) labels.
+- If applicable, **set labels seeking help**. Use the [_good first issue_](https://github.com/mdn/browser-compat-data/labels/good%20first%20issue) or [_help wanted_](https://github.com/mdn/browser-compat-data/labels/help%20wanted) labels.
 
 - **Thank the reporter.**
diff --git a/docs/labels.md b/docs/labels.md
index b85244eea86823..327b7d798c59a8 100644
--- a/docs/labels.md
+++ b/docs/labels.md
@@ -2,7 +2,7 @@
 
 Some labels act as special-use flags. Use the following labels according to these guidelines.
 
-## not ready ⛔
+## not ready
 
 | Pulls | Issues | Blocker |
 | ----- | ------ | ------- |
@@ -14,7 +14,7 @@ Set this label on any issue or PR that cannot proceed without some additional ac
 
 For example, if a pull request cannot be merged without another issue being resolved first, then set the label and leave a comment linking to the blocking issue.
 
-## needs content update 📝
+## needs content update
 
 | Pulls | Issues | Blocker |
 | ----- | ------ | ------- |
@@ -32,7 +32,7 @@ When in doubt, set the label. Better to find that content changes are unnecessar
 
 Remove this label after a pull request, which makes the required content changes, has been opened. A content change in progress is sufficient to merge compat data changes.
 
-## semver-minor-bump ➕
+## semver-minor-bump
 
 | Pulls | Issues | Blocker |
 | ----- | ------ | ------- |
@@ -55,7 +55,7 @@ Do not set this label on a pull request when it:
 
 Remove this label upon committing a release note to a release note pull request (see [_Publishing a new version of `@mdn/browser-compat-data`_](./publishing.md#publishing-a-new-version-of-mdnbrowser-compat-data)).
 
-## semver-major-bump 🚨
+## semver-major-bump
 
 | Pulls | Issues | Blocker |
 | ----- | ------ | ------- |
diff --git a/docs/matching-browser-releases/index.md b/docs/matching-browser-releases/index.md
index bd0d1899741fd4..a9cb74a417ecbd 100644
--- a/docs/matching-browser-releases/index.md
+++ b/docs/matching-browser-releases/index.md
@@ -20,14 +20,14 @@ The following sites and tools are helpful when trying to track down history info
 - [Chromium source code by release version number](https://chromium.googlesource.com/chromium/src.git/+refs)
 - [Google Chrome Platform Status](https://chromestatus.com/features)
 - [Chromium Code Search](https://source.chromium.org/chromium)
-- [Find Releases Tool](https://storage.googleapis.com/chromium-find-releases-static/index.html)
+- [ChromiumDash tool](https://chromiumdash.appspot.com/commits)
 - [List of everything exposed to the Web in Chrome](https://source.chromium.org/chromiumchromium/src/android_webview/tools/system_webview_shell/test/data/webexposed/global-interface-listing-expected.txt?g=0)
 - [Interfaces not exposed to WebView](https://source.chromium.org/chromiumchromium/src/android_webview/tools/system_webview_shell/test/data/webexposed/not-webview-exposed.txt)
 - [WebKit bugs](https://bugs.webkit.org/)
 
 #### Getting the Chrome version for a changeset or revision
 
-Given a particular Chrome changeset or revision number, you can look up the version number of Chrome that first shipped with those changes included using Google's [Find Releases tool](https://storage.googleapis.com/chromium-find-releases-static/index.html). As long as the change happened after the Chrome code moved to `git`, this will return the corresponding version number.
+Given a particular Chrome changeset or revision number, you can look up the version number of Chrome that first shipped with those changes included using Google's [ChromiumDash tool](https://chromiumdash.appspot.com/commits). As long as the change happened after the Chrome code moved to `git`, this will return the corresponding version number.
 
 For example, given the string `05b49ea1`, the tool first looks for a match among the full commit changeset numbers, finds none, then looks at the prefixed short commits:
 
diff --git a/html/elements/a.json b/html/elements/a.json
index b9ea876404ff23..6e5a47a02b7b2a 100644
--- a/html/elements/a.json
+++ b/html/elements/a.json
@@ -18,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Starting with Firefox 41, &lt;a&gt; without <code>href</code> attribute is no longer classified as interactive content: clicking it inside &lt;label&gt; will activate labelled content (<a href='https://bugzil.la/1167816'>bug 1167816</a>)."
+              "notes": "Starting with Firefox 41, &lt;a&gt; without `href` attribute is no longer classified as interactive content: clicking it inside &lt;label&gt; will activate labelled content ([bug 1167816](https://bugzil.la/1167816))."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -78,7 +80,7 @@
             "spec_url": "https://wicg.github.io/attribution-reporting-api/#element-attrdef-a-attributionsrc",
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "125"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -97,7 +99,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -132,7 +135,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -153,7 +157,7 @@
               "firefox": {
                 "version_added": "1",
                 "version_removed": "58",
-                "notes": "You can no longer nest an <code>&lt;a&gt;</code> element inside a <code>&lt;map&gt;</code> element to create a hotspot region - <code>coords</code> and <code>shape</code> attribute support removed."
+                "notes": "You can no longer nest an `&lt;a&gt;` element inside a `&lt;map&gt;` element to create a hotspot region - `coords` and `shape` attribute support removed."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -167,7 +171,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -182,20 +187,20 @@
             "support": {
               "chrome": {
                 "version_added": "14",
-                "notes": "Starting in Chrome 65, cross-origin downloads are not supported on the <code>&lt;a&gt;</code> element."
+                "notes": "Starting in Chrome 65, cross-origin downloads are not supported on the `&lt;a&gt;` element."
               },
               "chrome_android": "mirror",
               "edge": [
                 {
                   "version_added": "18",
-                  "notes": "Starting in Edge 79, cross-origin downloads are not supported on the <code>&lt;a&gt;</code> element."
+                  "notes": "Starting in Edge 79, cross-origin downloads are not supported on the `&lt;a&gt;` element."
                 },
                 {
                   "version_added": "13",
                   "partial_implementation": true,
                   "notes": [
-                    "Until Edge 14 (build 14357), attempting to download data URIs caused Edge to crash (<a href='https://developer.microsoft.com/microsoft-edge/platform/issues/7160092/'>bug 7160092</a>).",
-                    "Edge 17 or older didn't follow the attributes' value to determine filename (<a href='https://developer.microsoft.com/microsoft-edge/platform/issues/7260192/'>bug 7260192</a>)."
+                    "Until Edge 14 (build 14357), attempting to download data URIs caused Edge to crash ([bug 7160092](https://developer.microsoft.com/microsoft-edge/platform/issues/7160092/)).",
+                    "Edge 17 or older didn't follow the attributes' value to determine filename ([bug 7260192](https://developer.microsoft.com/microsoft-edge/platform/issues/7260192/))."
                   ]
                 }
               ],
@@ -216,7 +221,8 @@
                 "version_added": "13"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -254,7 +260,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -264,7 +271,7 @@
           },
           "href_sms": {
             "__compat": {
-              "description": "<code>href = 'sms:'</code>",
+              "description": "`href = 'sms:'`",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -286,7 +293,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -297,7 +305,7 @@
           },
           "href_top": {
             "__compat": {
-              "description": "<code>href = '#top'</code>",
+              "description": "`href = '#top'`",
               "support": {
                 "chrome": {
                   "version_added": "1"
@@ -321,7 +329,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -360,7 +369,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -369,9 +379,44 @@
             }
           }
         },
+        "hreftranslate": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": "81"
+              },
+              "chrome_android": "mirror",
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "implicit_noopener": {
           "__compat": {
-            "description": "<code>target=\"_blank\"</code> implies <code>rel=\"noopener\"</code> behavior",
+            "description": "`target=\"_blank\"` implies `rel=\"noopener\"` behavior",
             "support": {
               "chrome": {
                 "version_added": "88"
@@ -393,7 +438,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -428,7 +474,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -451,7 +498,7 @@
               "firefox": {
                 "version_added": "1",
                 "partial_implementation": true,
-                "notes": "This property is exposed but has no effect if the <code>browser.send_pings</code> preference is not set to <code>true</code>. See <a href='https://bugzil.la/951104'>bug 951104</a>."
+                "notes": "This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See [bug 951104](https://bugzil.la/951104)."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -467,7 +514,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -505,7 +553,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -516,6 +565,9 @@
           "no-referrer-when-downgrade": {
             "__compat": {
               "description": "no-referrer-when-downgrade",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -540,7 +592,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -552,6 +605,9 @@
           "origin-when-cross-origin": {
             "__compat": {
               "description": "origin-when-cross-origin",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -576,7 +632,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -588,6 +645,9 @@
           "unsafe-url": {
             "__compat": {
               "description": "unsafe-url",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -612,7 +672,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -651,7 +712,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -674,7 +736,7 @@
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "52",
-                  "notes": "Before Firefox 63, <code>rel=\"noopener\"</code> created windows with all features disabled by default. Starting with Firefox 63, these windows have the same features enabled by default as any other window."
+                  "notes": "Before Firefox 63, `rel=\"noopener\"` created windows with all features disabled by default. Starting with Firefox 63, these windows have the same features enabled by default as any other window."
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -688,7 +750,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -731,7 +794,8 @@
                 "samsunginternet_android": {
                   "version_added": "1.5"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -767,7 +831,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -788,7 +853,7 @@
               "firefox": {
                 "version_added": "1",
                 "version_removed": "58",
-                "notes": "You can no longer nest an <code>&lt;a&gt;</code> element inside a <code>&lt;map&gt;</code> element to create a hotspot region - <code>coords</code> and <code>shape</code> attribute support removed."
+                "notes": "You can no longer nest an `&lt;a&gt;` element inside a `&lt;map&gt;` element to create a hotspot region - `coords` and `shape` attribute support removed."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -802,7 +867,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -840,7 +906,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -850,10 +917,13 @@
           },
           "unfencedTop": {
             "__compat": {
-              "description": "<code>_unfencedTop</code> value",
+              "description": "`_unfencedTop` value",
+              "tags": [
+                "web-features:fencedframe"
+              ],
               "support": {
                 "chrome": {
-                  "version_added": "117"
+                  "version_added": "115"
                 },
                 "chrome_android": "mirror",
                 "edge": "mirror",
@@ -872,7 +942,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -892,8 +963,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1753933"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -907,7 +977,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -945,7 +1016,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/abbr.json b/html/elements/abbr.json
index 83ccdafe370360..c3810d26dce9d5 100644
--- a/html/elements/abbr.json
+++ b/html/elements/abbr.json
@@ -18,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this element implemented the <code>HTMLSpanElement</code> interface instead of the standard <code>HTMLElement</code> interface."
+              "notes": "Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface."
             },
             "firefox_android": {
               "version_added": "4"
@@ -34,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/acronym.json b/html/elements/acronym.json
index a82ba595143820..602d70461930c0 100644
--- a/html/elements/acronym.json
+++ b/html/elements/acronym.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/address.json b/html/elements/address.json
index e277336b12c21e..4a5d18179a2fba 100644
--- a/html/elements/address.json
+++ b/html/elements/address.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/area.json b/html/elements/area.json
index c74ca388fc1d2f..a652eeaf00bee8 100644
--- a/html/elements/area.json
+++ b/html/elements/area.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -106,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -141,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -179,7 +183,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -190,7 +195,7 @@
         },
         "implicit_noopener": {
           "__compat": {
-            "description": "<code>target=\"_blank\"</code> implies <code>rel=\"noopener\"</code> behavior",
+            "description": "`target=\"_blank\"` implies `rel=\"noopener\"` behavior",
             "tags": [
               "web-features:image-maps"
             ],
@@ -217,7 +222,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -252,7 +258,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -275,7 +282,7 @@
               "firefox": {
                 "version_added": "1",
                 "partial_implementation": true,
-                "notes": "This property is exposed but has no effect if the <code>browser.send_pings</code> preference is not set to <code>true</code>. See <a href='https://bugzil.la/951104'>bug 951104</a>."
+                "notes": "This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See [bug 951104](https://bugzil.la/951104)."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -291,7 +298,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -329,7 +337,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -340,6 +349,9 @@
           "no-referrer-when-downgrade": {
             "__compat": {
               "description": "no-referrer-when-downgrade",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -364,7 +376,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -376,6 +389,9 @@
           "origin-when-cross-origin": {
             "__compat": {
               "description": "origin-when-cross-origin",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -400,7 +416,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -412,6 +429,9 @@
           "unsafe-url": {
             "__compat": {
               "description": "unsafe-url",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -436,7 +456,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -475,7 +496,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -498,7 +520,7 @@
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "52",
-                  "notes": "Before Firefox 63, <code>rel=\"noopener\"</code> created windows with all features disabled by default. Starting with Firefox 63, these windows have the same features enabled by default as any other window."
+                  "notes": "Before Firefox 63, `rel=\"noopener\"` created windows with all features disabled by default. Starting with Firefox 63, these windows have the same features enabled by default as any other window."
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -512,7 +534,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -555,7 +578,8 @@
                 "samsunginternet_android": {
                   "version_added": "1.5"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -594,7 +618,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -603,40 +628,6 @@
             }
           }
         },
-        "tabindex": {
-          "__compat": {
-            "support": {
-              "chrome": {
-                "version_added": "1"
-              },
-              "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
-              "firefox": {
-                "version_added": "1"
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": "≤11"
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": "3.1"
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": true
-            }
-          }
-        },
         "target": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/links.html#attr-hyperlink-target",
@@ -666,7 +657,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/article.json b/html/elements/article.json
index 5acb238a0a9919..61d20db9043359 100644
--- a/html/elements/article.json
+++ b/html/elements/article.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/aside.json b/html/elements/aside.json
index 3256214924432c..79a0c60fd65963 100644
--- a/html/elements/aside.json
+++ b/html/elements/aside.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/audio.json b/html/elements/audio.json
index 1db1260fd99369..35005d959960e2 100644
--- a/html/elements/audio.json
+++ b/html/elements/audio.json
@@ -40,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,14 +57,17 @@
             ],
             "support": {
               "chrome": {
-                "version_added": "3"
+                "version_added": "3",
+                "version_removed": "67"
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "12"
+                "version_added": "12",
+                "version_removed": "79"
               },
               "firefox": {
-                "version_added": "3.5"
+                "version_added": "3.5",
+                "version_removed": "67"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -71,21 +75,23 @@
               },
               "oculus": "mirror",
               "opera": {
-                "version_added": "10.5"
+                "version_added": "10.5",
+                "version_removed": "53"
               },
               "opera_android": {
-                "version_added": "11"
+                "version_added": "11",
+                "version_removed": "53"
               },
               "safari": {
-                "version_added": "3.1"
+                "version_added": "3.1",
+                "version_removed": "17"
               },
               "safari_ios": {
-                "version_added": "3"
+                "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": {
-                "version_added": "3"
-              }
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -131,7 +137,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -167,7 +174,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -198,7 +206,7 @@
                   "version_added": "12",
                   "version_removed": "74",
                   "partial_implementation": true,
-                  "notes": "With <code>crossorigin=\"use-credentials\"</code>, cookies aren't sent during seek. See <a href='https://bugzil.la/1532722'>bug 1532722</a>."
+                  "notes": "With `crossorigin=\"use-credentials\"`, cookies aren't sent during seek. See [bug 1532722](https://bugzil.la/1532722)."
                 }
               ],
               "firefox_android": "mirror",
@@ -213,7 +221,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -225,6 +234,9 @@
         "disableremoteplayback": {
           "__compat": {
             "spec_url": "https://w3c.github.io/remote-playback/#the-disableremoteplayback-attribute",
+            "tags": [
+              "web-features:remote-playback"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -252,8 +264,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/521319"
-              }
+                "impl_url": "https://crbug.com/234081017"
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -299,7 +312,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -337,7 +351,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -355,7 +370,7 @@
             "support": {
               "chrome": {
                 "version_added": "3",
-                "notes": "Defaults to <code>metadata</code> in Chrome 64."
+                "notes": "Defaults to `metadata` in Chrome 64."
               },
               "chrome_android": "mirror",
               "edge": {
@@ -379,7 +394,7 @@
               "opera": [
                 {
                   "version_added": "15",
-                  "notes": "Defaults to <code>metadata</code> in Opera 51."
+                  "notes": "Defaults to `metadata` in Opera 51."
                 },
                 {
                   "alternative_name": "autobuffer",
@@ -390,7 +405,7 @@
               "opera_android": [
                 {
                   "version_added": "14",
-                  "notes": "Defaults to <code>metadata</code> in Opera 51."
+                  "notes": "Defaults to `metadata` in Opera 51."
                 },
                 {
                   "alternative_name": "autobuffer",
@@ -407,8 +422,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3",
-                "notes": "Defaults to <code>metadata</code> in Chrome 64."
-              }
+                "notes": "Defaults to `metadata` in Chrome 64."
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -454,7 +470,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/b.json b/html/elements/b.json
index 291117f1469174..52b81dbe1fd255 100644
--- a/html/elements/b.json
+++ b/html/elements/b.json
@@ -18,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this element implemented the <code>HTMLSpanElement</code> interface instead of the standard <code>HTMLElement</code> interface."
+              "notes": "Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface."
             },
             "firefox_android": {
               "version_added": "4"
@@ -34,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/base.json b/html/elements/base.json
index 603eca018e7a65..d682e15240fa0c 100644
--- a/html/elements/base.json
+++ b/html/elements/base.json
@@ -22,7 +22,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "≤11",
-              "notes": "Before Internet Explorer 7, <code>&lt;base&gt;</code> can be positioned anywhere in the document and the nearest value of <code>&lt;base&gt;</code> is used."
+              "notes": "Before Internet Explorer 7, `&lt;base&gt;` can be positioned anywhere in the document and the nearest value of `&lt;base&gt;` is used."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -79,7 +81,7 @@
           },
           "forbid_data_javascript_urls": {
             "__compat": {
-              "description": "<code>data:</code> and <code>javascript:</code> urls are not allowed",
+              "description": "`data:` and `javascript:` urls are not allowed",
               "tags": [
                 "web-features:base"
               ],
@@ -104,7 +106,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -142,7 +145,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -181,7 +185,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/bdi.json b/html/elements/bdi.json
index 4606319636fda0..0a8b4f96ba2bcd 100644
--- a/html/elements/bdi.json
+++ b/html/elements/bdi.json
@@ -31,7 +31,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/bdo.json b/html/elements/bdo.json
index 01c6c8398e7bef..c10e4e46665588 100644
--- a/html/elements/bdo.json
+++ b/html/elements/bdo.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/big.json b/html/elements/big.json
index 50f34fbd558162..2507e3542410b6 100644
--- a/html/elements/big.json
+++ b/html/elements/big.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/blockquote.json b/html/elements/blockquote.json
index b0d0c0aacf6dfd..794b4916112a77 100644
--- a/html/elements/blockquote.json
+++ b/html/elements/blockquote.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -67,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/body.json b/html/elements/body.json
index d3f8b141e32997..1efa06fb2e55dd 100644
--- a/html/elements/body.json
+++ b/html/elements/body.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -98,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,7 +135,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -165,7 +169,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -198,7 +203,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -232,7 +238,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -265,7 +272,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -299,7 +307,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -332,7 +341,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -366,7 +376,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/br.json b/html/elements/br.json
index 04b6700351481e..eba9195602631d 100644
--- a/html/elements/br.json
+++ b/html/elements/br.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/button.json b/html/elements/button.json
index 5199feeafbdaeb..913779b74dc7f0 100644
--- a/html/elements/button.json
+++ b/html/elements/button.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,6 +44,114 @@
             "deprecated": false
           }
         },
+        "command": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": "preview",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "enable-experimental-web-platform-features",
+                    "value_to_set": "enabled"
+                  }
+                ]
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "preview",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "dom.element.invokers.enabled",
+                    "value_to_set": "true"
+                  }
+                ]
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "preview",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "InvokerAttributesEnabled",
+                    "value_to_set": "true"
+                  }
+                ]
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "commandfor": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": "preview",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "enable-experimental-web-platform-features",
+                    "value_to_set": "enabled"
+                  }
+                ]
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "preview",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "dom.element.invokers.enabled",
+                    "value_to_set": "true"
+                  }
+                ]
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "preview",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "InvokerAttributesEnabled",
+                    "value_to_set": "true"
+                  }
+                ]
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "disabled": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/disabled",
@@ -73,7 +182,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,7 +220,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -149,7 +260,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -192,7 +304,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -231,7 +344,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -268,7 +382,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -305,7 +420,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -342,7 +458,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -379,7 +496,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -416,7 +534,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -453,7 +572,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -490,7 +610,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/canvas.json b/html/elements/canvas.json
index d5dd47d733e437..4abb7f303d933c 100644
--- a/html/elements/canvas.json
+++ b/html/elements/canvas.json
@@ -45,7 +45,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -96,7 +97,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -128,7 +130,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -180,7 +183,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/caption.json b/html/elements/caption.json
index 411e313494db1e..618801a8541ed2 100644
--- a/html/elements/caption.json
+++ b/html/elements/caption.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/center.json b/html/elements/center.json
index e50434095e5743..2ade1604624268 100644
--- a/html/elements/center.json
+++ b/html/elements/center.json
@@ -15,7 +15,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this element implemented the <code>HTMLSpanElement</code> interface instead of the standard <code>HTMLElement</code> interface."
+              "notes": "Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/cite.json b/html/elements/cite.json
index bf099703e87f32..1ecca442f94c86 100644
--- a/html/elements/cite.json
+++ b/html/elements/cite.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/code.json b/html/elements/code.json
index ea88ed71661ca4..67d5df732334ac 100644
--- a/html/elements/code.json
+++ b/html/elements/code.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/col.json b/html/elements/col.json
index e81a66b9e2b895..b9dedb0780c402 100644
--- a/html/elements/col.json
+++ b/html/elements/col.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -175,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -245,7 +247,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/colgroup.json b/html/elements/colgroup.json
index 277d1b3f0b52c0..3e85baa07795f1 100644
--- a/html/elements/colgroup.json
+++ b/html/elements/colgroup.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -176,7 +177,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -247,7 +249,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/data.json b/html/elements/data.json
index 8ded452c7b8f58..49b358b330e0c9 100644
--- a/html/elements/data.json
+++ b/html/elements/data.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/datalist.json b/html/elements/datalist.json
index 6c896194a063e1..421eaeedeeec96 100644
--- a/html/elements/datalist.json
+++ b/html/elements/datalist.json
@@ -18,16 +18,24 @@
             "edge": {
               "version_added": "12"
             },
-            "firefox": {
-              "version_added": "4",
-              "partial_implementation": true,
-              "notes": "The <code>&lt;datalist&gt;</code> element will only create a dropdown for textual types, such as <code>text</code>, <code>search</code>, <code>url</code>, <code>tel</code>, <code>email</code> and <code>number</code>. The <code>date</code>, <code>time</code>, <code>range</code> and <code>color</code> types are not supported."
-            },
+            "firefox": [
+              {
+                "version_added": "110",
+                "partial_implementation": true,
+                "notes": "The `date` and `time` input types are not supported."
+              },
+              {
+                "version_added": "4",
+                "version_removed": "110",
+                "partial_implementation": true,
+                "notes": "The `&lt;datalist&gt;` element will only create a dropdown for textual types, such as `text`, `search`, `url`, `tel`, `email` and `number`. The `date`, `time`, `range` and `color` types are not supported."
+              }
+            ],
             "firefox_android": [
               {
                 "version_added": "79",
                 "partial_implementation": true,
-                "notes": "The dropdown menu containing available options does not appear. See <a href='https://bugzil.la/1535985'>bug 1535985</a>."
+                "notes": "The dropdown menu containing available options does not appear. See [bug 1535985](https://bugzil.la/1535985)."
               },
               {
                 "version_added": "4",
@@ -47,7 +55,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/dd.json b/html/elements/dd.json
index 489d7c4eb4980e..c292cf8a653df4 100644
--- a/html/elements/dd.json
+++ b/html/elements/dd.json
@@ -15,7 +15,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this element was implemented using the <code>HTMLSpanElement</code> interface instead of <code>HTMLElement</code>."
+              "notes": "Before Firefox 4, this element was implemented using the `HTMLSpanElement` interface instead of `HTMLElement`."
             },
             "firefox_android": {
               "version_added": "4"
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/del.json b/html/elements/del.json
index a55f6160a0e7b7..58e53b18e2bc43 100644
--- a/html/elements/del.json
+++ b/html/elements/del.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/details.json b/html/elements/details.json
index 344a45b3249b72..fbc5ca37e9e727 100644
--- a/html/elements/details.json
+++ b/html/elements/details.json
@@ -16,11 +16,11 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "49",
-              "notes": "Before Firefox 57, there was a bug meaning that <code>&lt;details&gt;</code> elements can't be made open by default using the <code>open</code> attribute if they have a CSS <code>animation</code> active on them."
+              "notes": "Before Firefox 57, there was a bug meaning that `&lt;details&gt;` elements can't be made open by default using the `open` attribute if they have a CSS `animation` active on them."
             },
             "firefox_android": {
               "version_added": "49",
-              "notes": "There is a bug meaning that <code>&lt;details&gt;</code> elements can't be made open by default using the <code>open</code> attribute if they have a CSS <code>animation</code> active on them."
+              "notes": "There is a bug meaning that `&lt;details&gt;` elements can't be made open by default using the `open` attribute if they have a CSS `animation` active on them."
             },
             "ie": {
               "version_added": false
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,7 +50,7 @@
             "support": {
               "chrome": {
                 "version_added": "120",
-                "impl_url": "https://crbug.com/1444057"
+                "impl_url": "https://crbug.com/40267522"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -70,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,7 +107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/dfn.json b/html/elements/dfn.json
index 04638539654fa2..71b225795118d1 100644
--- a/html/elements/dfn.json
+++ b/html/elements/dfn.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/dialog.json b/html/elements/dialog.json
index a0c090eb055e25..2663c5d547970b 100644
--- a/html/elements/dialog.json
+++ b/html/elements/dialog.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -63,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/dir.json b/html/elements/dir.json
index c09dd3357e6b10..4dd58913d1603b 100644
--- a/html/elements/dir.json
+++ b/html/elements/dir.json
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/div.json b/html/elements/div.json
index 4e471920106a6d..ee239ead24d584 100644
--- a/html/elements/div.json
+++ b/html/elements/div.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/dl.json b/html/elements/dl.json
index c32aca5f851708..180c093b314422 100644
--- a/html/elements/dl.json
+++ b/html/elements/dl.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/dt.json b/html/elements/dt.json
index f50259472f3de0..ac291a1b9a7958 100644
--- a/html/elements/dt.json
+++ b/html/elements/dt.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/em.json b/html/elements/em.json
index a70d53fa592c3a..2b542502256202 100644
--- a/html/elements/em.json
+++ b/html/elements/em.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/embed.json b/html/elements/embed.json
index 431a58921bf338..320de29f76c94f 100644
--- a/html/elements/embed.json
+++ b/html/elements/embed.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -113,7 +115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -152,7 +155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -194,7 +198,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -234,7 +239,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -276,7 +282,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/fencedframe.json b/html/elements/fencedframe.json
index cf80219660447d..9edaa8581c2b91 100644
--- a/html/elements/fencedframe.json
+++ b/html/elements/fencedframe.json
@@ -5,9 +5,12 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/fencedframe",
           "spec_url": "https://wicg.github.io/fenced-frame/#the-fencedframe-element",
+          "tags": [
+            "web-features:fencedframe"
+          ],
           "support": {
             "chrome": {
-              "version_added": "117"
+              "version_added": "115"
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -37,9 +41,12 @@
         "allow": {
           "__compat": {
             "spec_url": "https://wicg.github.io/fenced-frame/#element-attrdef-fencedframe-allow",
+            "tags": [
+              "web-features:fencedframe"
+            ],
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "115"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -70,9 +78,12 @@
         "height": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content-other.html#attr-dim-height",
+            "tags": [
+              "web-features:fencedframe"
+            ],
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "115"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -103,9 +115,12 @@
         "width": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content-other.html#attr-dim-width",
+            "tags": [
+              "web-features:fencedframe"
+            ],
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "115"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/html/elements/fieldset.json b/html/elements/fieldset.json
index e9e8aa4a27cc82..965b6eaf1a3dd9 100644
--- a/html/elements/fieldset.json
+++ b/html/elements/fieldset.json
@@ -11,12 +11,12 @@
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "Before version 86, this element did not support <code>flexbox</code> and <code>grid</code> layouts within this element. See <a href='https://crbug.com/262679'>bug 262679</a>."
+              "notes": "Before version 86, this element did not support `flexbox` and `grid` layouts within this element. See [bug 41027853](https://crbug.com/41027853)."
             },
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Before version 86, this element did not support <code>flexbox</code> and <code>grid</code> layouts within this element. See <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/4511145/'>bug 4511145</a>."
+              "notes": "Before version 86, this element did not support `flexbox` and `grid` layouts within this element. See [bug 4511145](https://developer.microsoft.com/microsoft-edge/platform/issues/4511145/)."
             },
             "firefox": {
               "version_added": "1"
@@ -37,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -57,18 +58,23 @@
                 "version_added": "20"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12",
-                "partial_implementation": true,
-                "notes": "Does not work with nested fieldsets. For example: <code>&lt;fieldset disabled&gt;&lt;fieldset&gt;&lt;!--Still enabled--&gt;&lt;/fieldset&gt;&lt;/fieldset&gt;</code>"
-              },
+              "edge": [
+                {
+                  "version_added": "79"
+                },
+                {
+                  "version_added": "12",
+                  "partial_implementation": true,
+                  "notes": "Does not work with nested fieldsets. For example: `&lt;fieldset disabled&gt;&lt;fieldset&gt;&lt;!--Still enabled--&gt;&lt;/fieldset&gt;&lt;/fieldset&gt;`"
+                }
+              ],
               "firefox": {
                 "version_added": "4"
               },
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "≤11",
-                "notes": "Not all form control descendants of a disabled fieldset are properly disabled in IE11; see IE <a href='https://connect.microsoft.com/IE/feedbackdetail/view/817488'>bug 817488: input[type='file'] not disabled inside disabled fieldset</a> and IE <a href='https://connect.microsoft.com/IE/feedbackdetail/view/962368/can-still-edit-input-type-text-within-fieldset-disabled'>bug 962368: Can still edit input[type='text'] within fieldset[disabled]</a>."
+                "notes": "Not all form control descendants of a disabled fieldset are properly disabled in IE11; see IE [bug 817488: input[type='file'] not disabled inside disabled fieldset](https://connect.microsoft.com/IE/feedbackdetail/view/817488) and IE [bug 962368: Can still edit input[type='text'] within fieldset[disabled]](https://connect.microsoft.com/IE/feedbackdetail/view/962368/can-still-edit-input-type-text-within-fieldset-disabled)."
               },
               "oculus": "mirror",
               "opera": {
@@ -82,7 +88,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -158,7 +165,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/figcaption.json b/html/elements/figcaption.json
index d17cb742b64dd4..3f27331802065c 100644
--- a/html/elements/figcaption.json
+++ b/html/elements/figcaption.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/figure.json b/html/elements/figure.json
index fdf6af17627861..a2b985687bd436 100644
--- a/html/elements/figure.json
+++ b/html/elements/figure.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/font.json b/html/elements/font.json
index fcb05a32cb2250..eba4d162e24fdf 100644
--- a/html/elements/font.json
+++ b/html/elements/font.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +97,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,7 +132,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/footer.json b/html/elements/footer.json
index 0e1e5062a211f1..6db4df285a0f4d 100644
--- a/html/elements/footer.json
+++ b/html/elements/footer.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/form.json b/html/elements/form.json
index 7e8663ee8ef06b..a98d08f1627dfb 100644
--- a/html/elements/form.json
+++ b/html/elements/form.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/form",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#the-form-element",
+          "tags": [
+            "web-features:form"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -24,11 +27,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤4"
+              "version_added": "3"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
         "accept-charset": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#attr-form-accept-charset",
+            "tags": [
+              "web-features:form"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -62,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,6 +82,9 @@
         "action": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-action",
+            "tags": [
+              "web-features:form"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -93,11 +104,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤4"
+                "version_added": "3"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -109,10 +121,13 @@
         "autocomplete": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#attr-form-autocomplete",
+            "tags": [
+              "web-features:form"
+            ],
             "support": {
               "chrome": {
                 "version_added": "14",
-                "notes": "The Google Chrome UI for auto-complete request varies, depending on whether <code>autocomplete</code> is set to <code>off</code> on <code>&lt;input&gt;</code> elements as well as their form. Specifically, when a form has <code>autocomplete</code> set to <code>off</code> and its <code>&lt;input&gt;</code> element's <code>autocomplete</code> attribute is not set, then if the user asks for autofill suggestions for the <code>&lt;input&gt;</code> element, Chrome might display a message saying 'autocomplete has been disabled for this form.' On the other hand, if both the form and the input element have <code>autocomplete</code> set to <code>off</code>, the browser will not display that message. For this reason, you should set <code>autocomplete</code> to <code>off</code> for each <code>&lt;input&gt;</code> that has custom auto-completion."
+                "notes": "The Google Chrome UI for auto-complete request varies, depending on whether `autocomplete` is set to `off` on `&lt;input&gt;` elements as well as their form. Specifically, when a form has `autocomplete` set to `off` and its `&lt;input&gt;` element's `autocomplete` attribute is not set, then if the user asks for autofill suggestions for the `&lt;input&gt;` element, Chrome might display a message saying 'autocomplete has been disabled for this form.' On the other hand, if both the form and the input element have `autocomplete` set to `off`, the browser will not display that message. For this reason, you should set `autocomplete` to `off` for each `&lt;input&gt;` that has custom auto-completion."
               },
               "chrome_android": "mirror",
               "edge": {
@@ -133,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -143,7 +159,7 @@
           },
           "new-password": {
             "__compat": {
-              "description": "<code>new-password</code> value",
+              "description": "`new-password` value",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -165,7 +181,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -176,7 +193,7 @@
           },
           "one-time-code": {
             "__compat": {
-              "description": "<code>one-time-code</code> value",
+              "description": "`one-time-code` value",
               "support": {
                 "chrome": {
                   "version_added": "93"
@@ -202,7 +219,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -213,7 +231,7 @@
           },
           "webauthn": {
             "__compat": {
-              "description": "<code>webauthn</code> value",
+              "description": "`webauthn` value",
               "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#autofill-processing-model:attr-fe-autocomplete-webauthn",
               "support": {
                 "chrome": {
@@ -236,7 +254,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -249,6 +268,9 @@
         "enctype": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-enctype",
+            "tags": [
+              "web-features:form"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -272,7 +294,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -284,6 +307,9 @@
         "method": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-method",
+            "tags": [
+              "web-features:form"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -307,7 +333,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -319,6 +346,9 @@
         "name": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#attr-form-name",
+            "tags": [
+              "web-features:form"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -342,7 +372,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -354,6 +385,9 @@
         "novalidate": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-novalidate",
+            "tags": [
+              "web-features:form"
+            ],
             "support": {
               "chrome": {
                 "version_added": "10"
@@ -379,7 +413,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -391,6 +426,9 @@
         "rel": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#attr-form-rel",
+            "tags": [
+              "web-features:form"
+            ],
             "support": {
               "chrome": {
                 "version_added": "108"
@@ -412,7 +450,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -424,6 +463,9 @@
         "target": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-target",
+            "tags": [
+              "web-features:form"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -447,7 +489,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/frame.json b/html/elements/frame.json
index 4a999363cd255b..33983da6ddbcb3 100644
--- a/html/elements/frame.json
+++ b/html/elements/frame.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +97,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,7 +132,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -163,7 +167,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -197,7 +202,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -231,7 +237,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -265,7 +272,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/frameset.json b/html/elements/frameset.json
index 713eedc68a1664..3f73f5d49de195 100644
--- a/html/elements/frameset.json
+++ b/html/elements/frameset.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +97,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/h1.json b/html/elements/h1.json
index 606f557215aac5..081d3f6d665927 100644
--- a/html/elements/h1.json
+++ b/html/elements/h1.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/h2.json b/html/elements/h2.json
index 5dabdfa229ab1e..ff7f511c11b76e 100644
--- a/html/elements/h2.json
+++ b/html/elements/h2.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/h3.json b/html/elements/h3.json
index 772fb921b6aca8..967e3a7fe0b2a7 100644
--- a/html/elements/h3.json
+++ b/html/elements/h3.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/h4.json b/html/elements/h4.json
index b2ebaf9a18bcfe..8c0aeed736fb5a 100644
--- a/html/elements/h4.json
+++ b/html/elements/h4.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/h5.json b/html/elements/h5.json
index 16a3010bc4cbd2..415e49f2b1ca64 100644
--- a/html/elements/h5.json
+++ b/html/elements/h5.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/h6.json b/html/elements/h6.json
index 8fcd56aa6728e2..fddbd8f2bd618f 100644
--- a/html/elements/h6.json
+++ b/html/elements/h6.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/head.json b/html/elements/head.json
index e78fc778ac1cbc..08f686b7bf226d 100644
--- a/html/elements/head.json
+++ b/html/elements/head.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/header.json b/html/elements/header.json
index d08d011ea6a33d..1263cea95e1dd3 100644
--- a/html/elements/header.json
+++ b/html/elements/header.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/hgroup.json b/html/elements/hgroup.json
index 7392509ee2ef30..9380a70f5bf4ec 100644
--- a/html/elements/hgroup.json
+++ b/html/elements/hgroup.json
@@ -37,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2.2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/hr.json b/html/elements/hr.json
index 197a445d72b06d..713afc5b5f6af0 100644
--- a/html/elements/hr.json
+++ b/html/elements/hr.json
@@ -37,7 +37,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,7 +75,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -108,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -119,14 +122,14 @@
         },
         "hr_in_select": {
           "__compat": {
-            "description": "<code>&lt;hr&gt;</code> in <code>&lt;select&gt;</code>",
+            "description": "`&lt;hr&gt;` in `&lt;select&gt;`",
             "support": {
               "chrome": {
                 "version_added": "119",
                 "partial_implementation": true,
                 "notes": [
-                  "Only exposes the <code>&lt;hr&gt;</code> visually in the page when the menu is expanded (arrowing within the collapsed menu does not show them).",
-                  "Does not expose the <code>&lt;hr&gt;</code> within the accessibility tree."
+                  "Only exposes the `&lt;hr&gt;` visually in the page when the menu is expanded (arrowing within the collapsed menu does not show them).",
+                  "Does not expose the `&lt;hr&gt;` within the accessibility tree."
                 ]
               },
               "chrome_android": {
@@ -136,7 +139,7 @@
               "firefox": {
                 "version_added": "122",
                 "partial_implementation": true,
-                "notes": "Does not expose the <code>&lt;hr&gt;</code> within the accessibility tree."
+                "notes": "Does not expose the `&lt;hr&gt;` within the accessibility tree."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -148,15 +151,16 @@
               "safari": {
                 "version_added": "17",
                 "partial_implementation": true,
-                "notes": "Does not expose the <code>&lt;hr&gt;</code> within the accessibility tree."
+                "notes": "Does not expose the `&lt;hr&gt;` within the accessibility tree."
               },
               "safari_ios": {
                 "version_added": "17.4",
                 "partial_implementation": true,
-                "notes": "Does not expose the <code>&lt;hr&gt;</code> within the accessibility tree."
+                "notes": "Does not expose the `&lt;hr&gt;` within the accessibility tree."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -194,7 +198,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -232,7 +237,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -270,7 +276,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/html.json b/html/elements/html.json
index 402cdcd0b884b0..4a56ae33726b9b 100644
--- a/html/elements/html.json
+++ b/html/elements/html.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/i.json b/html/elements/i.json
index c4df04f77cb75d..b5ebfaac858c27 100644
--- a/html/elements/i.json
+++ b/html/elements/i.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/iframe.json b/html/elements/iframe.json
index d677ae69275c53..cb384c94412583 100644
--- a/html/elements/iframe.json
+++ b/html/elements/iframe.json
@@ -18,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "The <code>resize</code> CSS property doesn't have any effect on this element due to <a href='https://bugzil.la/680823'>bug 680823</a>."
+              "notes": "The `resize` CSS property doesn't have any effect on this element due to [bug 680823](https://bugzil.la/680823)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -33,11 +33,12 @@
             },
             "safari": {
               "version_added": "≤4",
-              "notes": "Safari has a <a href='https://www.quirksmode.org/bugreports/archives/2005/02/hidden_iframes.html'>bug</a> that prevents iframes from loading if the <code>iframe</code> element was hidden when added to the page. <code>iframeElement.src = iframeElement.src</code> should cause it to load the iframe."
+              "notes": "Safari has a [bug](https://www.quirksmode.org/bugreports/archives/2005/02/hidden_iframes.html) that prevents iframes from loading if the `iframe` element was hidden when added to the page. `iframeElement.src = iframeElement.src` should cause it to load the iframe."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -107,13 +108,1370 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
+          },
+          "accelerometer": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/sensors/#permissions-policy",
+              "tags": [
+                "web-features:accelerometer"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "66"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "ambient-light-sensor": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/sensors/#permissions-policy",
+              "support": {
+                "chrome": {
+                  "version_added": "66",
+                  "flags": [
+                    {
+                      "type": "preference",
+                      "name": "#enable-experimental-web-platform-features",
+                      "value_to_set": "Enabled"
+                    }
+                  ]
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "attribution-reporting": {
+            "__compat": {
+              "spec_url": "https://wicg.github.io/attribution-reporting-api/#permission-policy-integration",
+              "support": {
+                "chrome": {
+                  "version_added": "117"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "autoplay": {
+            "__compat": {
+              "spec_url": "https://html.spec.whatwg.org/multipage/infrastructure.html#autoplay-feature",
+              "support": {
+                "chrome": {
+                  "version_added": "64"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "74"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "bluetooth": {
+            "__compat": {
+              "spec_url": "https://webbluetoothcg.github.io/web-bluetooth/#permissions-policy",
+              "tags": [
+                "web-features:web-bluetooth"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "104"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "browsing-topics": {
+            "__compat": {
+              "support": {
+                "chrome": {
+                  "version_added": "115"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": false,
+                "deprecated": false
+              }
+            }
+          },
+          "camera": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/mediacapture-main/#permissions-policy-integration",
+              "support": {
+                "chrome": {
+                  "version_added": "64"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "74"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": "48"
+                },
+                "opera_android": {
+                  "version_added": "45"
+                },
+                "safari": {
+                  "version_added": "11.1"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "compute-pressure": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/compute-pressure/#policy-control",
+              "tags": [
+                "web-features:compute-pressure"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "125"
+                },
+                "chrome_android": {
+                  "version_added": false
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "cross-origin-isolated": {
+            "__compat": {
+              "spec_url": "https://html.spec.whatwg.org/multipage/infrastructure.html#cross-origin-isolated-feature",
+              "support": {
+                "chrome": {
+                  "version_added": "87"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "display-capture": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/mediacapture-screen-share/#permissions-policy-integration",
+              "tags": [
+                "web-features:screen-capture"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "94"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "74"
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "13"
+                },
+                "safari_ios": {
+                  "version_added": false
+                },
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "document-domain": {
+            "__compat": {
+              "spec_url": "https://html.spec.whatwg.org/multipage/infrastructure.html#policy-controlled-features",
+              "support": {
+                "chrome": {
+                  "version_added": "64",
+                  "flags": [
+                    {
+                      "type": "runtime_flag",
+                      "name": "--enable-blink-features=ExperimentalProductivityFeatures"
+                    }
+                  ]
+                },
+                "chrome_android": {
+                  "version_added": false
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "74"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "encrypted-media": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/encrypted-media/#permissions-policy-integration",
+              "support": {
+                "chrome": {
+                  "version_added": "64"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "74"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": "48"
+                },
+                "opera_android": {
+                  "version_added": "45"
+                },
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "fullscreen": {
+            "__compat": {
+              "spec_url": "https://fullscreen.spec.whatwg.org/#permissions-policy-integration",
+              "support": {
+                "chrome": {
+                  "version_added": "62"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "80"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "gamepad": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/gamepad/#permission-policy",
+              "support": {
+                "chrome": {
+                  "version_added": false
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "91",
+                  "partial_implementation": true,
+                  "notes": "The default allowlist is `*` instead of `self` (as required by the specification)."
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "geolocation": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/geolocation/#permissions-policy",
+              "tags": [
+                "web-features:geolocation"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "64"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "74"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "gyroscope": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/sensors/#permissions-policy",
+              "tags": [
+                "web-features:gyroscope"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "66"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "hid": {
+            "__compat": {
+              "spec_url": "https://wicg.github.io/webhid/#permissions-policy",
+              "tags": [
+                "web-features:webhid"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "89"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "identity-credentials-get": {
+            "__compat": {
+              "spec_url": "https://w3c-fedid.github.io/FedCM/#permissions-policy-integration",
+              "support": {
+                "chrome": {
+                  "version_added": "110"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": {
+                  "version_added": false
+                }
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "idle-detection": {
+            "__compat": {
+              "spec_url": "https://wicg.github.io/idle-detection/#api-permissions-policy",
+              "tags": [
+                "web-features:idle-detection"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "94"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "local-fonts": {
+            "__compat": {
+              "spec_url": "https://wicg.github.io/local-font-access/#permissions-policy",
+              "tags": [
+                "web-features:local-fonts"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "103"
+                },
+                "chrome_android": {
+                  "version_added": false,
+                  "impl_url": "https://crbug.com/40840834"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "magnetometer": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/sensors/#permissions-policy",
+              "support": {
+                "chrome": {
+                  "version_added": "66"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": {
+                  "version_added": false
+                }
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "microphone": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/mediacapture-main/#permissions-policy-integration",
+              "support": {
+                "chrome": {
+                  "version_added": "64"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "74"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": "48"
+                },
+                "opera_android": {
+                  "version_added": "45"
+                },
+                "safari": {
+                  "version_added": "11.1"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "midi": {
+            "__compat": {
+              "spec_url": "https://webaudio.github.io/web-midi-api/#permissions-policy-integration",
+              "tags": [
+                "web-features:web-midi"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "64"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "74"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false,
+                  "impl_url": "https://webkit.org/b/107250"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "otp-credentials": {
+            "__compat": {
+              "spec_url": "https://wicg.github.io/web-otp/#sctn-permissions-policy",
+              "tags": [
+                "web-features:web-otp"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "93"
+                },
+                "chrome_android": {
+                  "version_added": "84"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": {
+                  "version_added": false
+                }
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "payment": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/payment-request/#permissions-policy",
+              "tags": [
+                "web-features:payment-request"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "60"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "74"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "picture-in-picture": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/picture-in-picture/#permissions-policy",
+              "tags": [
+                "web-features:picture-in-picture"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "71"
+                },
+                "chrome_android": {
+                  "version_added": false
+                },
+                "edge": {
+                  "version_added": false
+                },
+                "firefox": {
+                  "version_added": false,
+                  "impl_url": "https://bugzil.la/1463402"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "publickey-credentials-create": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/webauthn/#sctn-permissions-policy",
+              "tags": [
+                "web-features:webauthn"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": false
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "123"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "publickey-credentials-get": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/webauthn/#sctn-permissions-policy",
+              "tags": [
+                "web-features:webauthn"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "84"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "118"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "opera_android": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "screen-wake-lock": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/screen-wake-lock/#policy-control",
+              "tags": [
+                "web-features:screen-wake-lock"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "84"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "126"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16.4"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "serial": {
+            "__compat": {
+              "spec_url": "https://wicg.github.io/serial/#permissions-policy",
+              "tags": [
+                "web-features:serial"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "89"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "speaker-selection": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/mediacapture-output/#permissions-policy-integration",
+              "support": {
+                "chrome": {
+                  "version_added": false
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "116"
+                },
+                "firefox_android": {
+                  "version_added": false,
+                  "notes": "Not available due to a limitation in Android (see [bug 1473346](https://bugzil.la/1473346))."
+                },
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false,
+                  "impl_url": "https://webkit.org/b/216641"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "storage-access": {
+            "__compat": {
+              "spec_url": "https://privacycg.github.io/storage-access/#permissions-policy-integration",
+              "tags": [
+                "web-features:storage-access"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "113"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "usb": {
+            "__compat": {
+              "spec_url": "https://wicg.github.io/webusb/#permissions-policy",
+              "tags": [
+                "web-features:webusb"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "60"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": {
+                  "version_added": false
+                }
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "web-share": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/web-share/#permissions-policy",
+              "tags": [
+                "web-features:share"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "86"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "81",
+                  "notes": "Firefox recognizes the `web-share` permissions policy, but this has no effect in versions of Firefox that do not support the [`share()`](https://developer.mozilla.org/docs/Web/API/Navigator/share) method."
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "wildcards": {
+            "__compat": {
+              "description": "Wildcards in `allow` attribute",
+              "support": {
+                "chrome": {
+                  "version_added": "108"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "window-management": {
+            "__compat": {
+              "spec_url": "https://w3c.github.io/window-management/#api-permission-policy-integration",
+              "support": {
+                "chrome": {
+                  "version_added": "100"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": {
+                  "version_added": false
+                }
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
+          "xr-spatial-tracking": {
+            "__compat": {
+              "spec_url": "https://immersive-web.github.io/webxr/#permissions-policy",
+              "tags": [
+                "web-features:webxr-device"
+              ],
+              "support": {
+                "chrome": {
+                  "version_added": "79"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": {
+                  "version_added": false
+                }
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
           }
         },
         "allowfullscreen": {
@@ -173,7 +1531,8 @@
                 ]
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -206,7 +1565,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -238,7 +1598,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -274,7 +1635,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -286,6 +1648,9 @@
         "csp": {
           "__compat": {
             "spec_url": "https://w3c.github.io/webappsec-cspee/#element-attrdef-iframe-csp",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -307,7 +1672,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -416,7 +1782,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -597,7 +1964,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -608,6 +1976,9 @@
           "no-referrer-when-downgrade": {
             "__compat": {
               "description": "no-referrer-when-downgrade",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -632,7 +2003,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -644,6 +2016,9 @@
           "origin-when-cross-origin": {
             "__compat": {
               "description": "origin-when-cross-origin",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -668,7 +2043,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -680,6 +2056,9 @@
           "unsafe-url": {
             "__compat": {
               "description": "unsafe-url",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -704,7 +2083,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -742,7 +2122,8 @@
                 "version_added": "4"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -752,7 +2133,7 @@
           },
           "allow-downloads": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-downloads\"</code>",
+              "description": "`sandbox=\"allow-downloads\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-downloads",
               "support": {
                 "chrome": {
@@ -775,7 +2156,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -786,7 +2168,7 @@
           },
           "allow-forms": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-forms\"</code>",
+              "description": "`sandbox=\"allow-forms\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-forms",
               "support": {
                 "chrome": {
@@ -811,7 +2193,8 @@
                   "version_added": "4"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -822,7 +2205,7 @@
           },
           "allow-modals": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-modals\"</code>",
+              "description": "`sandbox=\"allow-modals\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-modals",
               "support": {
                 "chrome": {
@@ -845,7 +2228,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -856,7 +2240,7 @@
           },
           "allow-orientation-lock": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-orientation-lock\"</code>",
+              "description": "`sandbox=\"allow-orientation-lock\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-orientation-lock",
               "support": {
                 "chrome": {
@@ -879,7 +2263,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -890,7 +2275,7 @@
           },
           "allow-pointer-lock": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-pointer-lock\"</code>",
+              "description": "`sandbox=\"allow-pointer-lock\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-pointer-lock",
               "tags": [
                 "web-features:pointer-lock"
@@ -918,7 +2303,8 @@
                   "version_added": false
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -929,7 +2315,7 @@
           },
           "allow-popups": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-popups\"</code>",
+              "description": "`sandbox=\"allow-popups\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-popups",
               "support": {
                 "chrome": {
@@ -956,7 +2342,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -967,7 +2354,7 @@
           },
           "allow-popups-to-escape-sandbox": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-popups-to-escape-sandbox\"</code>",
+              "description": "`sandbox=\"allow-popups-to-escape-sandbox\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-popups-to-escape-sandbox",
               "support": {
                 "chrome": {
@@ -990,7 +2377,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1001,7 +2389,7 @@
           },
           "allow-presentation": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-presentation\"</code>",
+              "description": "`sandbox=\"allow-presentation\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-presentation",
               "tags": [
                 "web-features:presentation-api"
@@ -1029,7 +2417,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1040,12 +2429,12 @@
           },
           "allow-same-origin": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-same-origin\"</code>",
+              "description": "`sandbox=\"allow-same-origin\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-same-origin",
               "support": {
                 "chrome": {
                   "version_added": "5",
-                  "notes": "Chrome 70 and earlier block script execution without <code>allow-scripts</code>, even if <code>allow-same-origin</code> is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution."
+                  "notes": "Chrome 70 and earlier block script execution without `allow-scripts`, even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution."
                 },
                 "chrome_android": "mirror",
                 "edge": "mirror",
@@ -1061,14 +2450,15 @@
                 "opera_android": "mirror",
                 "safari": {
                   "version_added": "5",
-                  "notes": "Safari blocks script execution without <code>allow-scripts</code> even if <code>allow-same-origin</code> is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution."
+                  "notes": "Safari blocks script execution without `allow-scripts` even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution."
                 },
                 "safari_ios": {
                   "version_added": "4",
-                  "notes": "Safari blocks script execution without <code>allow-scripts</code> even if <code>allow-same-origin</code> is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution."
+                  "notes": "Safari blocks script execution without `allow-scripts` even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution."
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1079,7 +2469,7 @@
           },
           "allow-scripts": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-scripts\"</code>",
+              "description": "`sandbox=\"allow-scripts\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-scripts",
               "support": {
                 "chrome": {
@@ -1104,7 +2494,8 @@
                   "version_added": "4"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1115,7 +2506,7 @@
           },
           "allow-storage-access-by-user-activation": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-storage-access-by-user-activation\"</code>",
+              "description": "`sandbox=\"allow-storage-access-by-user-activation\"`",
               "support": {
                 "chrome": {
                   "version_added": "113"
@@ -1137,7 +2528,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1148,7 +2540,7 @@
           },
           "allow-top-navigation": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-top-navigation\"</code>",
+              "description": "`sandbox=\"allow-top-navigation\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-top-navigation",
               "support": {
                 "chrome": {
@@ -1171,7 +2563,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1182,7 +2575,7 @@
           },
           "allow-top-navigation-by-user-activation": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-top-navigation-by-user-activation\"</code>",
+              "description": "`sandbox=\"allow-top-navigation-by-user-activation\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-top-navigation-by-user-activation",
               "support": {
                 "chrome": {
@@ -1205,7 +2598,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1216,7 +2610,7 @@
           },
           "allow-top-navigation-to-custom-protocols": {
             "__compat": {
-              "description": "<code>sandbox=\"allow-top-navigation-to-custom-protocols\"</code>",
+              "description": "`sandbox=\"allow-top-navigation-to-custom-protocols\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#attr-iframe-sandbox-allow-top-navigation-to-custom-protocols",
               "support": {
                 "chrome": {
@@ -1239,7 +2633,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1313,7 +2708,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1325,6 +2721,9 @@
         "srcdoc": {
           "__compat": {
             "spec_url": "https://html.spec.whatwg.org/multipage/iframe-embed-object.html#attr-iframe-srcdoc",
+            "tags": [
+              "web-features:iframe-srcdoc"
+            ],
             "support": {
               "chrome": {
                 "version_added": "20"
@@ -1348,7 +2747,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/img.json b/html/elements/img.json
index 96a03785acd25e..98d03f964510ef 100644
--- a/html/elements/img.json
+++ b/html/elements/img.json
@@ -55,7 +55,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -89,7 +90,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -127,7 +129,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -138,7 +141,7 @@
         },
         "aspect_ratio_computed_from_attributes": {
           "__compat": {
-            "description": "Aspect ratio computed from <code>width</code> and <code>height</code> attributes",
+            "description": "Aspect ratio computed from `width` and `height` attributes",
             "tags": [
               "web-features:aspect-ratio"
             ],
@@ -166,12 +169,13 @@
                   "version_added": "14",
                   "version_removed": "15",
                   "partial_implementation": true,
-                  "notes": "Safari doesn't preserve space for images without a valid <code>src</code>, which may disrupt layouts that rely on lazy loading (see <a href='https://webkit.org/b/224197'>bug 224197</a>)."
+                  "notes": "Safari doesn't preserve space for images without a valid `src`, which may disrupt layouts that rely on lazy loading (see [bug 224197](https://webkit.org/b/224197))."
                 }
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -185,7 +189,7 @@
             "spec_url": "https://wicg.github.io/attribution-reporting-api/#element-attrdef-img-attributionsrc",
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "125"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -204,7 +208,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -239,7 +244,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -277,7 +283,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -316,7 +323,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -338,23 +346,23 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": "132",
+                "impl_url": "https://bugzil.la/1797715"
               },
               "firefox_android": "mirror",
               "ie": {
                 "version_added": false
               },
               "oculus": "mirror",
-              "opera": {
-                "version_added": false
-              },
+              "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
                 "version_added": "17.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -392,7 +400,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -427,7 +436,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -465,7 +475,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -501,7 +512,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -536,7 +548,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -571,7 +584,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -609,7 +623,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -620,6 +635,9 @@
           "no-referrer-when-downgrade": {
             "__compat": {
               "description": "no-referrer-when-downgrade",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -644,7 +662,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -656,6 +675,9 @@
           "origin-when-cross-origin": {
             "__compat": {
               "description": "origin-when-cross-origin",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -680,7 +702,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -692,6 +715,9 @@
           "unsafe-url": {
             "__compat": {
               "description": "unsafe-url",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -716,7 +742,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -752,7 +779,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -762,7 +790,7 @@
           },
           "auto": {
             "__compat": {
-              "description": "<code>auto</code> value",
+              "description": "`auto` value",
               "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLImageElement/sizes",
               "spec_url": "https://html.spec.whatwg.org/multipage/images.html#valdef-sizes-auto",
               "support": {
@@ -788,7 +816,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -827,7 +856,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -845,7 +875,7 @@
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "38"
@@ -862,7 +892,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -900,7 +931,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -934,7 +966,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -970,7 +1003,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1008,7 +1042,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input.json b/html/elements/input.json
index 36f16bada3008f..9b388f45b37a13 100644
--- a/html/elements/input.json
+++ b/html/elements/input.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input",
           "spec_url": "https://html.spec.whatwg.org/multipage/input.html#the-input-element",
+          "tags": [
+            "web-features:input"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 89, manipulating the content of <code>&lt;input&gt;</code> elements using <code>Document.execCommand()</code> commands requires workarounds (see <a href='https://bugzil.la/1220696'>bug 1220696</a>)."
+              "notes": "Before Firefox 89, manipulating the content of `&lt;input&gt;` elements using `Document.execCommand()` commands requires workarounds (see [bug 1220696](https://bugzil.la/1220696))."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,6 +51,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/accept",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-accept",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -74,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -113,7 +121,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -122,10 +131,51 @@
             }
           }
         },
+        "alpha": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#alpha",
+            "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-alpha",
+            "tags": [
+              "web-features:input"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "preview"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "alt": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#alt",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-alt",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -153,7 +203,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -193,7 +244,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -236,7 +288,8 @@
                 "version_added": "10"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -249,6 +302,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#checked",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-checked",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -276,7 +332,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -285,6 +342,44 @@
             }
           }
         },
+        "colorspace": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#colorspace",
+            "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-colorspace",
+            "tags": [
+              "web-features:input"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "preview"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "dirname": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#dirname",
@@ -317,7 +412,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -330,6 +426,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/disabled",
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fe-disabled",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -357,7 +456,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -370,6 +470,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#form",
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fae-form",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -397,7 +500,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -410,6 +514,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#formaction",
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-formaction",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "9"
@@ -439,7 +546,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -452,6 +560,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#formenctype",
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-formenctype",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "9"
@@ -481,7 +592,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -494,6 +606,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#formmethod",
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-formmethod",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "9"
@@ -523,7 +638,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -536,6 +652,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#formnovalidate",
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-formnovalidate",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -567,7 +686,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -580,6 +700,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#formtarget",
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-formtarget",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "9"
@@ -609,7 +732,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -622,6 +746,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#list",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-list",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "20"
@@ -651,7 +778,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4.4.3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -664,6 +792,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/max",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-max",
+            "tags": [
+              "web-features:input-number"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -695,7 +826,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -708,6 +840,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/maxlength",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-maxlength",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -735,7 +870,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -748,6 +884,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/min",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-min",
+            "tags": [
+              "web-features:input-number"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -779,7 +918,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -792,6 +932,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/minlength",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-minlength",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "40"
@@ -815,7 +958,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -849,7 +993,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -862,6 +1007,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/multiple",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-multiple",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -891,7 +1039,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -904,6 +1053,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#name",
             "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fe-name",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -931,7 +1083,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -944,6 +1097,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/pattern",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-pattern",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -975,7 +1131,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -988,6 +1145,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#placeholder",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-placeholder",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3"
@@ -1017,7 +1177,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1054,7 +1215,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1091,7 +1253,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1104,6 +1267,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/readonly",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-readonly",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1131,7 +1297,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1144,6 +1311,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#required",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-required",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -1175,7 +1345,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1191,6 +1362,9 @@
               "https://html.spec.whatwg.org/multipage/input.html#attr-input-size",
               "https://html.spec.whatwg.org/multipage/form-elements.html#attr-select-size"
             ],
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1216,7 +1390,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1229,6 +1404,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#src",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-src",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1256,7 +1434,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1269,6 +1448,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/step",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-step",
+            "tags": [
+              "web-features:input-number"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -1300,7 +1482,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1339,7 +1522,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1347,6 +1531,58 @@
               "deprecated": true
             }
           }
+        },
+        "webkitdirectory": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": "7"
+              },
+              "chrome_android": [
+                {
+                  "version_added": "132"
+                },
+                {
+                  "version_added": "131",
+                  "partial_implementation": true,
+                  "notes": [
+                    "In Chrome for Android 131, choosing a directory crashes the browser (see [bug 376834374](https://crbug.com/376834374)).",
+                    "Before version 131, users cannot choose a directory, only individual files (see [bug 40248532](https://crbug.com/40248532)."
+                  ]
+                }
+              ],
+              "edge": {
+                "version_added": "13"
+              },
+              "firefox": {
+                "version_added": "50"
+              },
+              "firefox_android": {
+                "version_added": false
+              },
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "11.1"
+              },
+              "safari_ios": {
+                "version_added": false,
+                "notes": "The attribute can be set but users cannot choose a directory, only individual files (see [bug 271705](https://webkit.org/b/271705))."
+              },
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": false,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/html/elements/input/button.json b/html/elements/input/button.json
index a5f25f3f7413f3..9ef41e3c1bc977 100644
--- a/html/elements/input/button.json
+++ b/html/elements/input/button.json
@@ -4,9 +4,12 @@
       "input": {
         "type_button": {
           "__compat": {
-            "description": "<code>type=\"button\"</code>",
+            "description": "`type=\"button\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/button",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#button-state-(type=button)",
+            "tags": [
+              "web-features:input-button"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -30,7 +33,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/checkbox.json b/html/elements/input/checkbox.json
index a55d81498672fe..8c81adbbf5bc0d 100644
--- a/html/elements/input/checkbox.json
+++ b/html/elements/input/checkbox.json
@@ -4,9 +4,12 @@
       "input": {
         "type_checkbox": {
           "__compat": {
-            "description": "<code>type=\"checkbox\"</code>",
+            "description": "`type=\"checkbox\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/checkbox",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#checkbox-state-(type=checkbox)",
+            "tags": [
+              "web-features:input-checkbox"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -30,7 +33,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/color.json b/html/elements/input/color.json
index 9942e977f71f5b..6bc4781d11520c 100644
--- a/html/elements/input/color.json
+++ b/html/elements/input/color.json
@@ -4,9 +4,12 @@
       "input": {
         "type_color": {
           "__compat": {
-            "description": "<code>type=\"color\"</code>",
+            "description": "`type=\"color\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/color",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#color-state-(type=color)",
+            "tags": [
+              "web-features:input-color"
+            ],
             "support": {
               "chrome": {
                 "version_added": "20"
@@ -38,7 +41,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/date.json b/html/elements/input/date.json
index 807bd050acd145..da05a989a8f8bc 100644
--- a/html/elements/input/date.json
+++ b/html/elements/input/date.json
@@ -4,9 +4,12 @@
       "input": {
         "type_date": {
           "__compat": {
-            "description": "<code>type=\"date\"</code>",
+            "description": "`type=\"date\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/date",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#date-state-(type=date)",
+            "tags": [
+              "web-features:input-date-time"
+            ],
             "support": {
               "chrome": {
                 "version_added": "20"
@@ -36,7 +39,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/datetime-local.json b/html/elements/input/datetime-local.json
index 255e52ae61a080..6ba924f608cd15 100644
--- a/html/elements/input/datetime-local.json
+++ b/html/elements/input/datetime-local.json
@@ -4,9 +4,12 @@
       "input": {
         "type_datetime-local": {
           "__compat": {
-            "description": "<code>type=\"datetime-local\"</code>",
+            "description": "`type=\"datetime-local\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/datetime-local",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#local-date-and-time-state-(type=datetime-local)",
+            "tags": [
+              "web-features:input-date-time"
+            ],
             "support": {
               "chrome": {
                 "version_added": "20"
@@ -17,7 +20,7 @@
               },
               "firefox": {
                 "version_added": "93",
-                "notes": "Firefox only displays a date picker and does not display a time picker, see <a href='https://bugzil.la/1726108'>bug 1726108</a>."
+                "notes": "Firefox only displays a date picker and does not display a time picker, see [bug 1726108](https://bugzil.la/1726108)."
               },
               "firefox_android": {
                 "version_added": "93"
@@ -40,7 +43,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/email.json b/html/elements/input/email.json
index df0f4f4a04c8a1..f2dcce243650cb 100644
--- a/html/elements/input/email.json
+++ b/html/elements/input/email.json
@@ -4,9 +4,12 @@
       "input": {
         "type_email": {
           "__compat": {
-            "description": "<code>type=\"email\"</code>",
+            "description": "`type=\"email\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/email",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#email-state-(type=email)",
+            "tags": [
+              "web-features:input-email-tel-url"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -37,11 +40,12 @@
                 "notes": [
                   "Doesn't do validation, but instead offers a custom 'email' keyboard, which is designed to make entering email addresses easier.",
                   "The custom 'email' keyboard does not provide a comma key, so users cannot enter multiple email addresses.",
-                  "Automatically applies a default style of <code>opacity: 0.4</code> to disable textual <code>&lt;input&gt;</code> elements, including those of type 'email'. Other major browsers don't currently share this particular default style."
+                  "Automatically applies a default style of `opacity: 0.4` to disable textual `&lt;input&gt;` elements, including those of type 'email'. Other major browsers don't currently share this particular default style."
                 ]
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/file.json b/html/elements/input/file.json
index 8c27b00b0a8028..35c4bf913546a6 100644
--- a/html/elements/input/file.json
+++ b/html/elements/input/file.json
@@ -4,9 +4,12 @@
       "input": {
         "type_file": {
           "__compat": {
-            "description": "<code>type=\"file\"</code>",
+            "description": "`type=\"file\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/file",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#file-upload-state-(type=file)",
+            "tags": [
+              "web-features:input-file"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -17,7 +20,7 @@
               },
               "firefox": {
                 "version_added": "1",
-                "notes": "You can set as well as get the value of <code>HTMLInputElement.files</code> in all modern browsers; this was most recently added to Firefox, in version 57 (see <a href='https://bugzil.la/1384030'>bug 1384030</a>)."
+                "notes": "You can set as well as get the value of `HTMLInputElement.files` in all modern browsers; this was most recently added to Firefox, in version 57 (see [bug 1384030](https://bugzil.la/1384030))."
               },
               "firefox_android": {
                 "version_added": "4"
@@ -37,7 +40,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/hidden.json b/html/elements/input/hidden.json
index f204b8a68c6345..720f3a0bf07247 100644
--- a/html/elements/input/hidden.json
+++ b/html/elements/input/hidden.json
@@ -4,9 +4,12 @@
       "input": {
         "type_hidden": {
           "__compat": {
-            "description": "<code>type=\"hidden\"</code>",
+            "description": "`type=\"hidden\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/hidden",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#hidden-state-(type=hidden)",
+            "tags": [
+              "web-features:input-hidden"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -32,7 +35,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/image.json b/html/elements/input/image.json
index 18230d75c3a311..af8306c283cb1d 100644
--- a/html/elements/input/image.json
+++ b/html/elements/input/image.json
@@ -4,9 +4,12 @@
       "input": {
         "type_image": {
           "__compat": {
-            "description": "<code>type=\"image\"</code>",
+            "description": "`type=\"image\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/image",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#image-button-state-(type=image)",
+            "tags": [
+              "web-features:input-image"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -30,7 +33,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/month.json b/html/elements/input/month.json
index 9a863b31f4a3e7..088509ac660162 100644
--- a/html/elements/input/month.json
+++ b/html/elements/input/month.json
@@ -4,9 +4,12 @@
       "input": {
         "type_month": {
           "__compat": {
-            "description": "<code>type=\"month\"</code>",
+            "description": "`type=\"month\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/month",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#month-state-(type=month)",
+            "tags": [
+              "web-features:input-date-time"
+            ],
             "support": {
               "chrome": {
                 "version_added": "20"
@@ -32,13 +35,14 @@
               "opera_android": "mirror",
               "safari": {
                 "version_added": false,
-                "notes": "The input type is recognized, but there is no month-specific control. See <a href='https://webkit.org/b/200416'>bug 200416</a>."
+                "notes": "The input type is recognized, but there is no month-specific control. See [bug 200416](https://webkit.org/b/200416)."
               },
               "safari_ios": {
                 "version_added": "≤11.3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/number.json b/html/elements/input/number.json
index ca944ca0d0ec86..a962584e67af32 100644
--- a/html/elements/input/number.json
+++ b/html/elements/input/number.json
@@ -4,9 +4,12 @@
       "input": {
         "type_number": {
           "__compat": {
-            "description": "<code>type=\"number\"</code>",
+            "description": "`type=\"number\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/number",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#number-state-(type=number)",
+            "tags": [
+              "web-features:input-number"
+            ],
             "support": {
               "chrome": {
                 "version_added": "7"
@@ -30,7 +33,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/password.json b/html/elements/input/password.json
index 87b54669c6af3a..3e5b72b927a72b 100644
--- a/html/elements/input/password.json
+++ b/html/elements/input/password.json
@@ -4,9 +4,12 @@
       "input": {
         "type_password": {
           "__compat": {
-            "description": "<code>type=\"password\"</code>",
+            "description": "`type=\"password\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/password",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#password-state-(type=password)",
+            "tags": [
+              "web-features:input-password"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -32,7 +35,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -43,6 +47,9 @@
           "insecure_login_handling": {
             "__compat": {
               "description": "Special handling of password inputs in insecure login pages",
+              "tags": [
+                "web-features:input-password"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -64,7 +71,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/html/elements/input/radio.json b/html/elements/input/radio.json
index 1e8301c702992b..38ac94b2a77943 100644
--- a/html/elements/input/radio.json
+++ b/html/elements/input/radio.json
@@ -4,9 +4,12 @@
       "input": {
         "type_radio": {
           "__compat": {
-            "description": "<code>type=\"radio\"</code>",
+            "description": "`type=\"radio\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/radio",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#radio-button-state-(type=radio)",
+            "tags": [
+              "web-features:input-radio"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -30,7 +33,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/range.json b/html/elements/input/range.json
index e74137d412f80d..9762ac4968267e 100644
--- a/html/elements/input/range.json
+++ b/html/elements/input/range.json
@@ -4,9 +4,12 @@
       "input": {
         "type_range": {
           "__compat": {
-            "description": "<code>type=\"range\"</code>",
+            "description": "`type=\"range\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/range",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#range-state-(type=range)",
+            "tags": [
+              "web-features:input-range"
+            ],
             "support": {
               "chrome": {
                 "version_added": "4"
@@ -48,9 +51,10 @@
                   "version_added": "2",
                   "version_removed": "4.4",
                   "partial_implementation": true,
-                  "notes": "Pre-Chromium Android WebView recognizes the <code>range</code> type, but doesn't implement a range-specific control."
+                  "notes": "Pre-Chromium Android WebView recognizes the `range` type, but doesn't implement a range-specific control."
                 }
-              ]
+              ],
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -61,14 +65,15 @@
           "tick_marks": {
             "__compat": {
               "description": "Tick mark support",
+              "tags": [
+                "web-features:input-range"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "≤67"
                 },
                 "chrome_android": "mirror",
-                "edge": {
-                  "version_added": "≤79"
-                },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": "109"
                 },
@@ -84,7 +89,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -96,27 +102,30 @@
           "vertical_orientation": {
             "__compat": {
               "description": "Vertically-oriented range sliders",
+              "tags": [
+                "web-features:input-range"
+              ],
               "support": {
                 "chrome": [
                   {
                     "version_added": "124",
-                    "notes": "Vertical orientation available via the <code>writing-mode</code> property (see <a href='https://developer.mozilla.org/docs/Web/CSS/CSS_writing_modes/Vertical_controls'>Creating vertical controls</a>)."
+                    "notes": "Vertical orientation available via the `writing-mode` property (see [Creating vertical controls](https://developer.mozilla.org/docs/Web/CSS/CSS_writing_modes/Vertical_controls))."
                   },
                   {
                     "version_added": "≤67",
                     "partial_implementation": true,
-                    "notes": "Vertical orientation available by setting the non-standard <code>-webkit-appearance: slider-vertical</code> style on the <code>input</code> element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers."
+                    "notes": "Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers."
                   }
                 ],
                 "chrome_android": "mirror",
                 "edge": {
                   "version_added": "12",
-                  "notes": "Vertical orientation available by setting the <code>writing-mode: bt-lr</code> style on the <code>input</code> element."
+                  "notes": "Vertical orientation available by setting the `writing-mode: bt-lr` style on the `input` element."
                 },
                 "firefox": [
                   {
                     "version_added": "120",
-                    "notes": "Vertical orientation available via the <code>writing-mode</code> property (see <a href='https://developer.mozilla.org/docs/Web/CSS/CSS_writing_modes/Vertical_controls'>Creating vertical controls</a>)."
+                    "notes": "Vertical orientation available via the `writing-mode` property (see [Creating vertical controls](https://developer.mozilla.org/docs/Web/CSS/CSS_writing_modes/Vertical_controls))."
                   },
                   {
                     "version_added": "≤72",
@@ -125,13 +134,13 @@
                       "https://bugzil.la/981916"
                     ],
                     "partial_implementation": true,
-                    "notes": "Supported using the non-standard <code>orient=\"vertical\"</code> attribute."
+                    "notes": "Supported using the non-standard `orient=\"vertical\"` attribute."
                   }
                 ],
                 "firefox_android": "mirror",
                 "ie": {
                   "version_added": "10",
-                  "notes": "Vertical orientation available by setting the <code>writing-mode: bt-lr</code> style on the <code>input</code> element."
+                  "notes": "Vertical orientation available by setting the `writing-mode: bt-lr` style on the `input` element."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -139,27 +148,28 @@
                 "safari": [
                   {
                     "version_added": "16.5",
-                    "notes": "Vertical orientation available via the <code>writing-mode</code> property (see <a href='https://developer.mozilla.org/docs/Web/CSS/CSS_writing_modes/Vertical_controls'>Creating vertical controls</a>)."
+                    "notes": "Vertical orientation available via the `writing-mode` property (see [Creating vertical controls](https://developer.mozilla.org/docs/Web/CSS/CSS_writing_modes/Vertical_controls))."
                   },
                   {
                     "version_added": "3.1",
                     "partial_implementation": true,
-                    "notes": "Vertical orientation available by setting the non-standard <code>-webkit-appearance: slider-vertical</code> style on the <code>input</code> element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers."
+                    "notes": "Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers."
                   }
                 ],
                 "safari_ios": [
                   {
                     "version_added": "16.5",
-                    "notes": "Vertical orientation available via the <code>writing-mode</code> property (see <a href='https://developer.mozilla.org/docs/Web/CSS/CSS_writing_modes/Vertical_controls'>Creating vertical controls</a>)."
+                    "notes": "Vertical orientation available via the `writing-mode` property (see [Creating vertical controls](https://developer.mozilla.org/docs/Web/CSS/CSS_writing_modes/Vertical_controls))."
                   },
                   {
                     "version_added": "5",
                     "partial_implementation": true,
-                    "notes": "Vertical orientation available by setting the non-standard <code>-webkit-appearance: slider-vertical</code> style on the <code>input</code> element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers."
+                    "notes": "Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers."
                   }
                 ],
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/html/elements/input/reset.json b/html/elements/input/reset.json
index 049adfb6e1319f..ce57c240705355 100644
--- a/html/elements/input/reset.json
+++ b/html/elements/input/reset.json
@@ -4,9 +4,12 @@
       "input": {
         "type_reset": {
           "__compat": {
-            "description": "<code>type=\"reset\"</code>",
+            "description": "`type=\"reset\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/reset",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#reset-button-state-(type=reset)",
+            "tags": [
+              "web-features:input-reset"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -17,7 +20,7 @@
               },
               "firefox": {
                 "version_added": "1",
-                "notes": "Unlike other browsers, Firefox by default <a href='https://stackoverflow.com/questions/5985839/bug-with-firefox-disabled-attribute-of-input-not-resetting-when-refreshing'>persists the dynamic disabled state</a> of a <code>&lt;button&gt;</code> across page loads. Use the <code><a href='https://developer.mozilla.org/docs/Web/HTML/Element/button#attr-autocomplete'>autocomplete</a></code> attribute to control this feature."
+                "notes": "Unlike other browsers, Firefox by default [persists the dynamic disabled state](https://stackoverflow.com/questions/5985839/bug-with-firefox-disabled-attribute-of-input-not-resetting-when-refreshing) of a `&lt;button&gt;` across page loads. Use the [`autocomplete`](https://developer.mozilla.org/docs/Web/HTML/Element/button#attr-autocomplete) attribute to control this feature."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -31,7 +34,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/search.json b/html/elements/input/search.json
index 72f741241d7646..8d7582ebb4dc36 100644
--- a/html/elements/input/search.json
+++ b/html/elements/input/search.json
@@ -4,7 +4,7 @@
       "input": {
         "type_search": {
           "__compat": {
-            "description": "<code>type=\"search\"</code>",
+            "description": "`type=\"search\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/search",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#text-(type=text)-state-and-search-state-(type=search)",
             "tags": [
@@ -35,7 +35,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/submit.json b/html/elements/input/submit.json
index 8aa161d40faf5a..aad506d0e816c0 100644
--- a/html/elements/input/submit.json
+++ b/html/elements/input/submit.json
@@ -4,9 +4,12 @@
       "input": {
         "type_submit": {
           "__compat": {
-            "description": "<code>type=\"submit\"</code>",
+            "description": "`type=\"submit\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/submit",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#submit-button-state-(type=submit)",
+            "tags": [
+              "web-features:input-submit"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -17,7 +20,7 @@
               },
               "firefox": {
                 "version_added": "1",
-                "notes": "Unlike other browsers, Firefox by default <a href='https://stackoverflow.com/questions/5985839/bug-with-firefox-disabled-attribute-of-input-not-resetting-when-refreshing'>persists the dynamic disabled state</a> of a <code>&lt;button&gt;</code> across page loads. Use the <code><a href='https://developer.mozilla.org/docs/Web/HTML/Element/button#attr-autocomplete'>autocomplete</a></code> attribute to control this feature."
+                "notes": "Unlike other browsers, Firefox by default [persists the dynamic disabled state](https://stackoverflow.com/questions/5985839/bug-with-firefox-disabled-attribute-of-input-not-resetting-when-refreshing) of a `&lt;button&gt;` across page loads. Use the [`autocomplete`](https://developer.mozilla.org/docs/Web/HTML/Element/button#attr-autocomplete) attribute to control this feature."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -31,7 +34,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/tel.json b/html/elements/input/tel.json
index ff1101fab5f055..fc4a5cb106702e 100644
--- a/html/elements/input/tel.json
+++ b/html/elements/input/tel.json
@@ -4,9 +4,12 @@
       "input": {
         "type_tel": {
           "__compat": {
-            "description": "<code>type=\"tel\"</code>",
+            "description": "`type=\"tel\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/tel",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#telephone-state-(type=tel)",
+            "tags": [
+              "web-features:input-email-tel-url"
+            ],
             "support": {
               "chrome": {
                 "version_added": "3",
@@ -42,7 +45,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/text.json b/html/elements/input/text.json
index 7d3d1c9fd96cd9..ca109eac39df3f 100644
--- a/html/elements/input/text.json
+++ b/html/elements/input/text.json
@@ -4,9 +4,12 @@
       "input": {
         "type_text": {
           "__compat": {
-            "description": "<code>type=\"text\"</code>",
+            "description": "`type=\"text\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/text",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#text-(type=text)-state-and-search-state-(type=search)",
+            "tags": [
+              "web-features:input"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -30,7 +33,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/time.json b/html/elements/input/time.json
index bc47bb23af7e6b..4616aa1eb1d781 100644
--- a/html/elements/input/time.json
+++ b/html/elements/input/time.json
@@ -4,9 +4,12 @@
       "input": {
         "type_time": {
           "__compat": {
-            "description": "<code>type=\"time\"</code>",
+            "description": "`type=\"time\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/time",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#time-state-(type=time)",
+            "tags": [
+              "web-features:input-date-time"
+            ],
             "support": {
               "chrome": {
                 "version_added": "20"
@@ -36,7 +39,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/url.json b/html/elements/input/url.json
index 8cd19db47e0fbe..50a5d43e2ce704 100644
--- a/html/elements/input/url.json
+++ b/html/elements/input/url.json
@@ -4,9 +4,12 @@
       "input": {
         "type_url": {
           "__compat": {
-            "description": "<code>type=\"url\"</code>",
+            "description": "`type=\"url\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/url",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#url-state-(type=url)",
+            "tags": [
+              "web-features:input-email-tel-url"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -32,7 +35,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/input/week.json b/html/elements/input/week.json
index a57de8b661964e..fc6dab34600ddf 100644
--- a/html/elements/input/week.json
+++ b/html/elements/input/week.json
@@ -4,9 +4,12 @@
       "input": {
         "type_week": {
           "__compat": {
-            "description": "<code>type=\"week\"</code>",
+            "description": "`type=\"week\"`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input/week",
             "spec_url": "https://html.spec.whatwg.org/multipage/input.html#week-state-(type=week)",
+            "tags": [
+              "web-features:input-date-time"
+            ],
             "support": {
               "chrome": {
                 "version_added": "20"
@@ -36,7 +39,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/ins.json b/html/elements/ins.json
index 0b6f098d263cfb..bdb29d5c4c9e2a 100644
--- a/html/elements/ins.json
+++ b/html/elements/ins.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/kbd.json b/html/elements/kbd.json
index 818585803ec9b3..6637234562465f 100644
--- a/html/elements/kbd.json
+++ b/html/elements/kbd.json
@@ -18,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, creating a &lt;kbd&gt; element incorrectly resulted in an <code>HTMLSpanElement</code> object, instead of the expected <code>HTMLElement</code>."
+              "notes": "Before Firefox 4, creating a &lt;kbd&gt; element incorrectly resulted in an `HTMLSpanElement` object, instead of the expected `HTMLElement`."
             },
             "firefox_android": {
               "version_added": "4"
@@ -34,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/label.json b/html/elements/label.json
index 3cf531217ec49e..31458aa4031a21 100644
--- a/html/elements/label.json
+++ b/html/elements/label.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/label",
           "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#the-label-element",
+          "tags": [
+            "web-features:label"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/for",
             "spec_url": "https://html.spec.whatwg.org/multipage/forms.html#attr-label-for",
+            "tags": [
+              "web-features:label"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -63,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/legend.json b/html/elements/legend.json
index 4b4a2f03842928..d10a766a30e435 100644
--- a/html/elements/legend.json
+++ b/html/elements/legend.json
@@ -37,7 +37,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -74,7 +75,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/li.json b/html/elements/li.json
index 740ea7c9c6b12c..33cb77ebba3156 100644
--- a/html/elements/li.json
+++ b/html/elements/li.json
@@ -37,7 +37,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,6 +48,7 @@
         },
         "type": {
           "__compat": {
+            "spec_url": "https://html.spec.whatwg.org/multipage/obsolete.html#attr-li-type",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -74,11 +76,12 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
-              "standard_track": false,
+              "standard_track": true,
               "deprecated": true
             }
           }
@@ -116,7 +119,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/link.json b/html/elements/link.json
index 68b107153fd184..00c177aab925d9 100644
--- a/html/elements/link.json
+++ b/html/elements/link.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -72,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,15 +107,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false,
-                "impl_url": "https://webkit.org/b/267232"
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -149,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -174,7 +177,7 @@
               },
               "firefox": {
                 "version_added": "18",
-                "notes": "Before Firefox 83, <code>crossorigin</code> is not supported for <code>rel=\"icon\"</code>."
+                "notes": "Before Firefox 83, `crossorigin` is not supported for `rel=\"icon\"`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -188,7 +191,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -206,12 +210,12 @@
             "support": {
               "chrome": {
                 "version_added": "1",
-                "notes": "In Chrome and other Blink-based browsers, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
+                "notes": "In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
               },
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "Since Edge 79, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
+                "notes": "Since Edge 79, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
               },
               "firefox": {
                 "version_added": "1"
@@ -223,18 +227,19 @@
               "oculus": "mirror",
               "opera": {
                 "version_added": "≤12.1",
-                "notes": "In Chrome and other Blink-based browsers, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
+                "notes": "In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
               },
               "opera_android": {
                 "version_added": "≤12.1",
-                "notes": "In Chrome and other Blink-based browsers, adding the <code>disabled</code> attribute using JavaScript does not remove the stylesheet from <code>document.styleSheets</code>."
+                "notes": "In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`."
               },
               "safari": {
                 "version_added": "≤4"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -256,23 +261,22 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": "132"
               },
               "firefox_android": "mirror",
               "ie": {
                 "version_added": false
               },
               "oculus": "mirror",
-              "opera": {
-                "version_added": false
-              },
+              "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
                 "version_added": "17.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -314,7 +318,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -356,7 +361,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -392,7 +398,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -428,7 +435,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -470,7 +478,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -512,7 +521,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -550,7 +560,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -561,6 +572,9 @@
           "no-referrer-when-downgrade": {
             "__compat": {
               "description": "no-referrer-when-downgrade",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -585,7 +599,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -597,6 +612,9 @@
           "origin-when-cross-origin": {
             "__compat": {
               "description": "origin-when-cross-origin",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -621,7 +639,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -633,6 +652,9 @@
           "unsafe-url": {
             "__compat": {
               "description": "unsafe-url",
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -657,7 +679,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -720,6 +743,9 @@
                 "https://html.spec.whatwg.org/multipage/semantics.html#attr-meta-http-equiv-default-style",
                 "https://drafts.csswg.org/cssom/#css-style-sheet-collections"
               ],
+              "tags": [
+                "web-features:alternative-style-sheets"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "1",
@@ -742,7 +768,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -779,7 +806,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -795,7 +823,7 @@
               "support": {
                 "chrome": {
                   "version_added": "124",
-                  "impl_url": "https://crbug.com/1507845"
+                  "impl_url": "https://crbug.com/40948547"
                 },
                 "chrome_android": "mirror",
                 "edge": "mirror",
@@ -814,7 +842,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -840,7 +869,10 @@
                 },
                 "firefox": {
                   "version_added": "2",
-                  "notes": "Before Firefox 83, the <code>crossorigin</code> attribute is not supported for <code>rel=\"icon\"</code>."
+                  "notes": [
+                    "Before Firefox 83, the `crossorigin` attribute is not supported for `rel=\"icon\"`.",
+                    "The `media` attribute is not supported for `rel=\"icon\"`, see [bug 1603885](https://bugzil.la/1603885)."
+                  ]
                 },
                 "firefox_android": {
                   "version_added": "4"
@@ -869,7 +901,8 @@
                 },
                 "webview_android": {
                   "version_added": "38"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -883,6 +916,9 @@
               "description": "rel=manifest",
               "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/rel/manifest",
               "spec_url": "https://html.spec.whatwg.org/multipage/links.html#link-type-manifest",
+              "tags": [
+                "web-features:manifest"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "39"
@@ -902,13 +938,14 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": false
+                  "version_added": "17"
                 },
                 "safari_ios": {
                   "version_added": "11.3"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -948,7 +985,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -970,7 +1008,7 @@
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "39",
-                  "notes": "Before Firefox 41, it doesn't obey the <code>crossorigin</code> attribute."
+                  "notes": "Before Firefox 41, it doesn't obey the `crossorigin` attribute."
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -986,7 +1024,8 @@
                 "samsunginternet_android": {
                   "version_added": "4.0"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1035,7 +1074,8 @@
                   "version_added": "1.5",
                   "notes": "Requires secure context"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1065,7 +1105,7 @@
                     "version_added": "56",
                     "version_removed": "57",
                     "partial_implementation": true,
-                    "notes": "Disabled due to various web compatibility issues (e.g. <a href='https://bugzil.la/1405761'>bug 1405761</a>)."
+                    "notes": "Disabled due to various web compatibility issues (e.g. [bug 1405761](https://bugzil.la/1405761))."
                   }
                 ],
                 "firefox_android": "mirror",
@@ -1080,7 +1120,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1090,7 +1131,7 @@
             },
             "as-fetch": {
               "__compat": {
-                "description": "<code>as=fetch</code>",
+                "description": "`as=fetch`",
                 "support": {
                   "chrome": {
                     "version_added": "50"
@@ -1107,7 +1148,7 @@
                       "version_added": "56",
                       "version_removed": "57",
                       "partial_implementation": true,
-                      "notes": "Disabled due to various web compatibility issues (e.g. <a href='https://bugzil.la/1405761'>bug 1405761</a>)."
+                      "notes": "Disabled due to various web compatibility issues (e.g. [bug 1405761](https://bugzil.la/1405761))."
                     }
                   ],
                   "firefox_android": "mirror",
@@ -1122,7 +1163,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -1133,7 +1175,7 @@
             },
             "as-font": {
               "__compat": {
-                "description": "<code>as=font</code>",
+                "description": "`as=font`",
                 "support": {
                   "chrome": {
                     "version_added": "50"
@@ -1150,7 +1192,7 @@
                       "version_added": "56",
                       "version_removed": "57",
                       "partial_implementation": true,
-                      "notes": "Disabled due to various web compatibility issues (e.g. <a href='https://bugzil.la/1405761'>bug 1405761</a>)."
+                      "notes": "Disabled due to various web compatibility issues (e.g. [bug 1405761](https://bugzil.la/1405761))."
                     }
                   ],
                   "firefox_android": "mirror",
@@ -1165,7 +1207,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -1176,7 +1219,7 @@
             },
             "as-image": {
               "__compat": {
-                "description": "<code>as=image</code>",
+                "description": "`as=image`",
                 "support": {
                   "chrome": {
                     "version_added": "50"
@@ -1193,7 +1236,7 @@
                       "version_added": "56",
                       "version_removed": "57",
                       "partial_implementation": true,
-                      "notes": "Disabled due to various web compatibility issues (e.g. <a href='https://bugzil.la/1405761'>bug 1405761</a>)."
+                      "notes": "Disabled due to various web compatibility issues (e.g. [bug 1405761](https://bugzil.la/1405761))."
                     }
                   ],
                   "firefox_android": "mirror",
@@ -1208,7 +1251,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -1219,7 +1263,7 @@
             },
             "as-script": {
               "__compat": {
-                "description": "<code>as=script</code>",
+                "description": "`as=script`",
                 "support": {
                   "chrome": {
                     "version_added": "50"
@@ -1236,7 +1280,7 @@
                       "version_added": "56",
                       "version_removed": "57",
                       "partial_implementation": true,
-                      "notes": "Disabled due to various web compatibility issues (e.g. <a href='https://bugzil.la/1405761'>bug 1405761</a>)."
+                      "notes": "Disabled due to various web compatibility issues (e.g. [bug 1405761](https://bugzil.la/1405761))."
                     }
                   ],
                   "firefox_android": "mirror",
@@ -1251,7 +1295,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -1262,7 +1307,7 @@
             },
             "as-style": {
               "__compat": {
-                "description": "<code>as=style</code>",
+                "description": "`as=style`",
                 "support": {
                   "chrome": {
                     "version_added": "50"
@@ -1279,7 +1324,7 @@
                       "version_added": "56",
                       "version_removed": "57",
                       "partial_implementation": true,
-                      "notes": "Disabled due to various web compatibility issues (e.g. <a href='https://bugzil.la/1405761'>bug 1405761</a>)."
+                      "notes": "Disabled due to various web compatibility issues (e.g. [bug 1405761](https://bugzil.la/1405761))."
                     }
                   ],
                   "firefox_android": "mirror",
@@ -1294,7 +1339,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -1305,7 +1351,7 @@
             },
             "as-track": {
               "__compat": {
-                "description": "<code>as=track</code>",
+                "description": "`as=track`",
                 "support": {
                   "chrome": {
                     "version_added": "50"
@@ -1329,7 +1375,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -1366,7 +1413,8 @@
                 "samsunginternet_android": {
                   "version_added": "1.5"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1406,7 +1454,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1443,7 +1492,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1482,7 +1532,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1524,7 +1575,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/main.json b/html/elements/main.json
index a0fbba28e24998..55ddcb311b921e 100644
--- a/html/elements/main.json
+++ b/html/elements/main.json
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/map.json b/html/elements/map.json
index c46febe8b2c4a8..c2af0378af7a4b 100644
--- a/html/elements/map.json
+++ b/html/elements/map.json
@@ -20,7 +20,7 @@
               "version_added": "1",
               "notes": [
                 "Before Firefox 5, in Quirks Mode, empty maps were no longer skipped over in favor of non-empty ones when matching.",
-                "Before Firefox 17, the default styling of the <code>&lt;map&gt;</code> HTML element was <code>display: block;</code>. This is now <code>display: inline;</code> and matches the behavior of the other browsers. It was already the case in Quirks Mode."
+                "Before Firefox 17, the default styling of the `&lt;map&gt;` HTML element was `display: block;`. This is now `display: inline;` and matches the behavior of the other browsers. It was already the case in Quirks Mode."
               ]
             },
             "firefox_android": {
@@ -37,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -73,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/mark.json b/html/elements/mark.json
index 8e621376c00414..5e9b3d1794fd7f 100644
--- a/html/elements/mark.json
+++ b/html/elements/mark.json
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/marquee.json b/html/elements/marquee.json
index 34a06b99771383..a98469e657b14a 100644
--- a/html/elements/marquee.json
+++ b/html/elements/marquee.json
@@ -20,7 +20,7 @@
               {
                 "version_added": "1",
                 "partial_implementation": true,
-                "notes": "Implements the <code>HTMLDivElement</code> interface."
+                "notes": "Implements the `HTMLDivElement` interface."
               }
             ],
             "firefox_android": "mirror",
@@ -39,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -76,7 +77,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -152,7 +155,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -190,7 +194,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -224,7 +229,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -258,7 +264,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -296,7 +303,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -334,7 +342,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -368,7 +377,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -402,7 +412,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -440,7 +451,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/menu.json b/html/elements/menu.json
index 15d6b2fe6ec99b..277d0a1f46df3f 100644
--- a/html/elements/menu.json
+++ b/html/elements/menu.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/menu",
           "spec_url": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-menu-element",
+          "tags": [
+            "web-features:menu"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/meta.json b/html/elements/meta.json
index 22edf350f1a015..5a5234db600aa8 100644
--- a/html/elements/meta.json
+++ b/html/elements/meta.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -72,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,7 +159,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -166,6 +170,7 @@
           },
           "content-language": {
             "__compat": {
+              "description": "http-equiv=\"content-language\"",
               "spec_url": "https://html.spec.whatwg.org/multipage/semantics.html#attr-meta-http-equiv-keyword-content-language",
               "support": {
                 "chrome": {
@@ -190,7 +195,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -201,7 +207,11 @@
           },
           "content-security-policy": {
             "__compat": {
+              "description": "http-equiv=\"content-security-policy\"",
               "spec_url": "https://html.spec.whatwg.org/multipage/semantics.html#attr-meta-http-equiv-keyword-content-security-policy",
+              "tags": [
+                "web-features:csp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "≤59"
@@ -225,7 +235,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -236,7 +247,11 @@
           },
           "content-type": {
             "__compat": {
+              "description": "http-equiv=\"content-type\"",
               "spec_url": "https://html.spec.whatwg.org/multipage/semantics.html#attr-meta-http-equiv-keyword-content-type",
+              "tags": [
+                "web-features:meta"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "≤59"
@@ -260,7 +275,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -271,6 +287,7 @@
           },
           "refresh": {
             "__compat": {
+              "description": "http-equiv=\"refresh\"",
               "spec_url": "https://html.spec.whatwg.org/multipage/semantics.html#attr-meta-http-equiv-keyword-refresh",
               "tags": [
                 "web-features:meta"
@@ -349,7 +366,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -386,7 +404,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -404,7 +423,7 @@
               "support": {
                 "chrome": {
                   "version_added": "17",
-                  "notes": "Until Chrome 46, <code>content</code> values weren't constrained to the values listed in the spec."
+                  "notes": "Until Chrome 46, `content` values weren't constrained to the values listed in the spec."
                 },
                 "chrome_android": "mirror",
                 "edge": {
@@ -412,13 +431,13 @@
                 },
                 "firefox": {
                   "version_added": "36",
-                  "notes": "The <code>referrer</code> value wasn't taken into account when navigation was happening via the context menu or middle click until Firefox 39."
+                  "notes": "The `referrer` value wasn't taken into account when navigation was happening via the context menu or middle click until Firefox 39."
                 },
                 "firefox_android": "mirror",
                 "ie": {
                   "version_added": "11",
                   "partial_implementation": true,
-                  "notes": "Browsers initially supported an <a href='https://wiki.whatwg.org/wiki/Meta_referrer'>early draft</a> of the specification which can only use a meta tag and is only compatible with the <code>origin</code> value from the new spec."
+                  "notes": "Browsers initially supported an [early draft](https://wiki.whatwg.org/wiki/Meta_referrer) of the specification which can only use a meta tag and is only compatible with the `origin` value from the new spec."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -430,7 +449,8 @@
                   "version_added": "12"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -452,15 +472,22 @@
                   },
                   {
                     "version_added": "39",
-                    "version_removed": "72",
+                    "version_removed": "73",
                     "partial_implementation": true,
                     "notes": "Chrome reports support, but does not actually use the color anywhere."
                   }
                 ],
-                "chrome_android": {
-                  "version_added": "80",
-                  "notes": "Chrome for Android does not use the color on devices with native dark mode enabled."
-                },
+                "chrome_android": [
+                  {
+                    "version_added": "92"
+                  },
+                  {
+                    "version_added": "39",
+                    "version_removed": "92",
+                    "partial_implementation": true,
+                    "notes": "Chrome for Android does not use the color on devices with native dark mode enabled unless it's an installed progressive web app or a trusted web activity."
+                  }
+                ],
                 "edge": "mirror",
                 "firefox": {
                   "version_added": false
@@ -485,7 +512,8 @@
                 },
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -525,7 +553,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/meter.json b/html/elements/meter.json
index 72949c8196dbb6..e18f1a552fcfb7 100644
--- a/html/elements/meter.json
+++ b/html/elements/meter.json
@@ -11,7 +11,7 @@
             },
             "chrome_android": "mirror",
             "edge": {
-              "version_added": "≤18"
+              "version_added": "12"
             },
             "firefox": {
               "version_added": "16"
@@ -36,7 +36,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -53,7 +54,7 @@
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "16"
@@ -78,7 +79,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -96,7 +98,7 @@
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "16"
@@ -121,7 +123,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +143,7 @@
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "16"
@@ -165,7 +168,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -184,7 +188,7 @@
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "16"
@@ -209,7 +213,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -227,7 +232,7 @@
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "16"
@@ -252,7 +257,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -270,7 +276,7 @@
               },
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "16"
@@ -295,7 +301,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/nav.json b/html/elements/nav.json
index 5793236af5c32b..143c63bf11499f 100644
--- a/html/elements/nav.json
+++ b/html/elements/nav.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/nobr.json b/html/elements/nobr.json
index ccdc8094ac37be..559849d17e92f0 100644
--- a/html/elements/nobr.json
+++ b/html/elements/nobr.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/noembed.json b/html/elements/noembed.json
index 6330093e415f04..17f18932b2ef1f 100644
--- a/html/elements/noembed.json
+++ b/html/elements/noembed.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/noframes.json b/html/elements/noframes.json
index 4af956b112cfe7..c4ae0eff6ef5d0 100644
--- a/html/elements/noframes.json
+++ b/html/elements/noframes.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/noscript.json b/html/elements/noscript.json
index 8783816f65d084..990d749ae9addf 100644
--- a/html/elements/noscript.json
+++ b/html/elements/noscript.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/object.json b/html/elements/object.json
index d03093780b2d8e..b0258796118a52 100644
--- a/html/elements/object.json
+++ b/html/elements/object.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -65,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,7 +138,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -170,7 +174,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -205,7 +210,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -243,7 +249,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -278,7 +285,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -316,7 +324,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -354,7 +363,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -392,7 +402,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -427,41 +438,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": true
-            }
-          }
-        },
-        "tabindex": {
-          "__compat": {
-            "support": {
-              "chrome": {
-                "version_added": "1"
-              },
-              "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
-              "firefox": {
-                "version_added": "1"
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": "≤11"
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": "3.1"
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -499,7 +477,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -534,7 +513,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -572,7 +552,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/ol.json b/html/elements/ol.json
index 6515653b637073..bc836678ba108b 100644
--- a/html/elements/ol.json
+++ b/html/elements/ol.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -102,7 +103,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +142,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -178,7 +181,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/optgroup.json b/html/elements/optgroup.json
index 9c20448826d08e..9d8bcb687b4d21 100644
--- a/html/elements/optgroup.json
+++ b/html/elements/optgroup.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/option.json b/html/elements/option.json
index d2c616e28e3db8..08538c2d298b18 100644
--- a/html/elements/option.json
+++ b/html/elements/option.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,14 +97,14 @@
               "firefox": {
                 "version_added": "1",
                 "notes": [
-                  "Before 77, Firefox didn't display the value of the <code>label</code> attribute as option text if element's content was empty. See <a href='https://bugzil.la/40545'>bug 40545</a>.",
-                  "Historically, Firefox has allowed keyboard and mouse events to bubble up from the <code>&lt;option&gt;</code> element to the parent <code>&lt;select&gt;</code> element, although this behavior is inconsistent across many browsers. For better Web compatibility (and for technical reasons), they will not bubble up when Firefox is in multi-process mode and the <code>&lt;select&gt;</code> element is displayed as a drop-down list. The behavior is unchanged if the <code>&lt;select&gt;</code> is presented inline and it has either the <code>multiple</code> attribute defined or a <code>size</code> attribute set to more than <code>1</code>. Rather than watching <code>&lt;option&gt;</code> elements for events, you should watch for <a href='https://developer.mozilla.org/docs/Web/Events/change'>change</a> events on <code>&lt;select&gt;</code>. See <a href='https://bugzil.la/1090602'>bug 1090602</a> for details.",
-                  "When Mozilla introduced dedicated content threads to Firefox (through the Electrolysis, or e10s, project), support for styling <code>&lt;option&gt;</code> elements was removed temporarily. Starting in Firefox 54, you can apply foreground and background colors to <code>&lt;option&gt;</code> elements again, using the <code>color</code> and <code>background-color</code> CSS properties. See <a href='https://bugzil.la/910022'>bug 910022</a> for more information. Note that this is still disabled in Linux due to lack of contrast (see <a href='https://bugzil.la/1338283'>bug 1338283</a> for progress on this)."
+                  "Before 77, Firefox didn't display the value of the `label` attribute as option text if element's content was empty. See [bug 40545](https://bugzil.la/40545).",
+                  "Historically, Firefox has allowed keyboard and mouse events to bubble up from the `&lt;option&gt;` element to the parent `&lt;select&gt;` element, although this behavior is inconsistent across many browsers. For better Web compatibility (and for technical reasons), they will not bubble up when Firefox is in multi-process mode and the `&lt;select&gt;` element is displayed as a drop-down list. The behavior is unchanged if the `&lt;select&gt;` is presented inline and it has either the `multiple` attribute defined or a `size` attribute set to more than `1`. Rather than watching `&lt;option&gt;` elements for events, you should watch for [change](https://developer.mozilla.org/docs/Web/Events/change) events on `&lt;select&gt;`. See [bug 1090602](https://bugzil.la/1090602) for details.",
+                  "When Mozilla introduced dedicated content threads to Firefox (through the Electrolysis, or e10s, project), support for styling `&lt;option&gt;` elements was removed temporarily. Starting in Firefox 54, you can apply foreground and background colors to `&lt;option&gt;` elements again, using the `color` and `background-color` CSS properties. See [bug 910022](https://bugzil.la/910022) for more information. Note that this is still disabled in Linux due to lack of contrast (see [bug 1338283](https://bugzil.la/1338283) for progress on this)."
                 ]
               },
               "firefox_android": {
                 "version_added": "4",
-                "notes": "Before 77, Firefox didn't display the value of the <code>label</code> attribute as option text if element's content was empty. See <a href='https://bugzil.la/40545'>bug 40545</a>."
+                "notes": "Before 77, Firefox didn't display the value of the `label` attribute as option text if element's content was empty. See [bug 40545](https://bugzil.la/40545)."
               },
               "ie": {
                 "version_added": "≤11"
@@ -115,7 +117,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -153,7 +156,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -191,7 +195,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/output.json b/html/elements/output.json
index 17a3840245fd5b..ec9167724a5d66 100644
--- a/html/elements/output.json
+++ b/html/elements/output.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,7 +78,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -119,7 +121,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -161,7 +164,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/p.json b/html/elements/p.json
index 38a3b4add1fe98..8e7dd0442b546f 100644
--- a/html/elements/p.json
+++ b/html/elements/p.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/param.json b/html/elements/param.json
index 68084781eb2eec..854363e9bdd89a 100644
--- a/html/elements/param.json
+++ b/html/elements/param.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +97,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,7 +132,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -163,7 +167,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/picture.json b/html/elements/picture.json
index eb6f334a2e0bd5..462f1e0ed06a59 100644
--- a/html/elements/picture.json
+++ b/html/elements/picture.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/plaintext.json b/html/elements/plaintext.json
index 79b62f08d37f2e..d3a886a9e71658 100644
--- a/html/elements/plaintext.json
+++ b/html/elements/plaintext.json
@@ -21,7 +21,7 @@
                 "version_added": "1",
                 "version_removed": "4",
                 "partial_implementation": true,
-                "notes": "Before Firefox 4, this element implemented the <code>HTMLSpanElement</code> interface instead of the standard <code>HTMLElement</code> interface."
+                "notes": "Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface."
               }
             ],
             "firefox_android": "mirror",
@@ -36,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/portal.json b/html/elements/portal.json
index 570ce50f1e3319..bcf11ac9cc0f01 100644
--- a/html/elements/portal.json
+++ b/html/elements/portal.json
@@ -51,7 +51,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/html/elements/pre.json b/html/elements/pre.json
index 23d34e6f7df7aa..3d6dbbe1d8efa2 100644
--- a/html/elements/pre.json
+++ b/html/elements/pre.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,28 +45,28 @@
             "support": {
               "chrome": {
                 "version_added": "1",
-                "notes": "Specifying the <code>width</code> attribute has no layout effect."
+                "notes": "Specifying the `width` attribute has no layout effect."
               },
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "Specifying the <code>width</code> attribute has no layout effect."
+                "notes": "Specifying the `width` attribute has no layout effect."
               },
               "firefox": {
                 "version_added": "1",
-                "notes": "Since Firefox 29, specifying the <code>width</code> attribute has no layout effect."
+                "notes": "Since Firefox 29, specifying the `width` attribute has no layout effect."
               },
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "≤11",
-                "notes": "Specifying the <code>width</code> attribute has no layout effect."
+                "notes": "Specifying the `width` attribute has no layout effect."
               },
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
                 "version_added": "3",
-                "notes": "Specifying the <code>width</code> attribute has no layout effect."
+                "notes": "Specifying the `width` attribute has no layout effect."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
@@ -102,7 +103,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/progress.json b/html/elements/progress.json
index 6eea9ba9ff9402..f4fe1ff426ff47 100644
--- a/html/elements/progress.json
+++ b/html/elements/progress.json
@@ -19,8 +19,8 @@
             "firefox": {
               "version_added": "6",
               "notes": [
-                "Before Firefox 14, the <code>&lt;progress&gt;</code> element was incorrectly classified as a form element, and therefore had a <code>form</code> attribute. This has been fixed.",
-                "Firefox provides the <code>::-moz-progress-bar</code> pseudo-element, which lets you style the part of the interior of the progress bar representing the amount of work completed so far."
+                "Before Firefox 14, the `&lt;progress&gt;` element was incorrectly classified as a form element, and therefore had a `form` attribute. This has been fixed.",
+                "Firefox provides the `::-moz-progress-bar` pseudo-element, which lets you style the part of the interior of the progress bar representing the amount of work completed so far."
               ]
             },
             "firefox_android": "mirror",
@@ -42,7 +42,8 @@
               "notes": "Safari on iOS does not support indeterminate progress bars (they are rendered like 0%-completed progress bars)."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -86,7 +87,8 @@
                 "version_added": "7"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -130,7 +132,8 @@
                 "version_added": "7"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/q.json b/html/elements/q.json
index 3cd425b5bc0b1a..738178a797e3b9 100644
--- a/html/elements/q.json
+++ b/html/elements/q.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/rb.json b/html/elements/rb.json
index 4332ac7a13ab67..7884885824872d 100644
--- a/html/elements/rb.json
+++ b/html/elements/rb.json
@@ -9,7 +9,7 @@
             "chrome": {
               "version_added": "5",
               "partial_implementation": true,
-              "notes": "Blink has support for parsing the <code>rb</code> element, but not for rendering <code>rb</code> content as expected."
+              "notes": "Blink has support for parsing the `rb` element, but not for rendering `rb` content as expected."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -26,11 +26,12 @@
             "safari": {
               "version_added": "5",
               "partial_implementation": true,
-              "notes": "Safari has support for parsing the <code>rb</code> element, but not for rendering <code>rb</code> content as expected."
+              "notes": "Safari has support for parsing the `rb` element, but not for rendering `rb` content as expected."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/rp.json b/html/elements/rp.json
index 772797375fed3b..ad65ee46c369d8 100644
--- a/html/elements/rp.json
+++ b/html/elements/rp.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/rt.json b/html/elements/rt.json
index 14a2c186c0f00b..a3ad715836a2fb 100644
--- a/html/elements/rt.json
+++ b/html/elements/rt.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/rtc.json b/html/elements/rtc.json
index ae18b8546b74c4..3cadd3f6d1821a 100644
--- a/html/elements/rtc.json
+++ b/html/elements/rtc.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/ruby.json b/html/elements/ruby.json
index aad9ef54ae65a5..80643fe4e9afa3 100644
--- a/html/elements/ruby.json
+++ b/html/elements/ruby.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/s.json b/html/elements/s.json
index 5b46e8608e82b7..07896cf8aed62e 100644
--- a/html/elements/s.json
+++ b/html/elements/s.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/s",
           "spec_url": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-s-element",
+          "tags": [
+            "web-features:s"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this element implemented the <code>HTMLSpanElement</code> interface instead of the standard <code>HTMLElement</code> interface."
+              "notes": "Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface."
             },
             "firefox_android": {
               "version_added": "4"
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/samp.json b/html/elements/samp.json
index 9beab134294830..d9a0cb7ea211bd 100644
--- a/html/elements/samp.json
+++ b/html/elements/samp.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/script.json b/html/elements/script.json
index 32e648581b6021..52ea9df57de543 100644
--- a/html/elements/script.json
+++ b/html/elements/script.json
@@ -18,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Starting in Firefox 4, inserting &lt;script&gt; elements that have been created by calling <code>document.createElement(\"script\")</code> no longer enforces execution in insertion order. This change lets Firefox properly abide by the specification. To make script-inserted external scripts execute in their insertion order, set <code>.async=false</code> on them."
+              "notes": "Starting in Firefox 4, inserting &lt;script&gt; elements that have been created by calling `document.createElement(\"script\")` no longer enforces execution in insertion order. This change lets Firefox properly abide by the specification. To make script-inserted external scripts execute in their insertion order, set `.async=false` on them."
             },
             "firefox_android": {
               "version_added": "4"
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -75,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -89,7 +91,7 @@
             "spec_url": "https://wicg.github.io/attribution-reporting-api/#element-attrdef-script-attributionsrc",
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "125"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -108,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -141,15 +144,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false,
-                "impl_url": "https://webkit.org/b/267232"
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -185,11 +188,12 @@
               },
               "safari": {
                 "version_added": "6",
-                "notes": "The <code>crossorigin</code> attribute was implemented in WebKit in WebKit <a href='https://webkit.org/b/81438'>bug 81438</a>."
+                "notes": "The `crossorigin` attribute was implemented in WebKit in WebKit [bug 81438](https://webkit.org/b/81438)."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -207,7 +211,7 @@
             "support": {
               "chrome": {
                 "version_added": "1",
-                "notes": "Chrome does not defer scripts with the <code>defer</code> attribute when the page is served as XHTML (<code>application/xhtml+xml</code>), see <a href='https://crbug.com/611136'>bug 611136</a> and <a href='https://crbug.com/874749'>bug 874749</a>"
+                "notes": "Chrome does not defer scripts with the `defer` attribute when the page is served as XHTML (`application/xhtml+xml`), see [bug 41253514](https://crbug.com/41253514) and [bug 41408348](https://crbug.com/41408348)"
               },
               "chrome_android": "mirror",
               "edge": {
@@ -215,14 +219,14 @@
               },
               "firefox": {
                 "version_added": "3.5",
-                "notes": "Since Firefox 3.6, the <code>defer</code> attribute is ignored on scripts that don't have the <code>src</code> attribute. However, in Firefox 3.5 even inline scripts are deferred if the <code>defer</code> attribute is set."
+                "notes": "Since Firefox 3.6, the `defer` attribute is ignored on scripts that don't have the `src` attribute. However, in Firefox 3.5 even inline scripts are deferred if the `defer` attribute is set."
               },
               "firefox_android": {
                 "version_added": "4"
               },
               "ie": {
                 "version_added": "10",
-                "notes": "Before version 10, Internet Explorer implemented <code>defer</code> by a proprietary specification. Since version 10 it conforms to the W3C specification."
+                "notes": "Before version 10, Internet Explorer implemented `defer` by a proprietary specification. Since version 10 it conforms to the W3C specification."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -232,7 +236,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -254,23 +259,23 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": "132",
+                "impl_url": "https://bugzil.la/1797715"
               },
               "firefox_android": "mirror",
               "ie": {
                 "version_added": false
               },
               "oculus": "mirror",
-              "opera": {
-                "version_added": false
-              },
+              "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
                 "version_added": "17.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -311,7 +316,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -349,7 +355,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -387,7 +394,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -397,6 +405,9 @@
           },
           "no-referrer-when-downgrade": {
             "__compat": {
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "70"
@@ -421,7 +432,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -432,6 +444,9 @@
           },
           "origin-when-cross-origin": {
             "__compat": {
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "70"
@@ -456,7 +471,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -467,6 +483,9 @@
           },
           "unsafe-url": {
             "__compat": {
+              "tags": [
+                "web-features:referrer-policy"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "70"
@@ -491,7 +510,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -530,7 +550,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -568,7 +589,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -578,7 +600,7 @@
           },
           "importmap": {
             "__compat": {
-              "description": "<code>type=\"importmap\"</code>",
+              "description": "`type=\"importmap\"`",
               "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#import-map",
               "tags": [
                 "web-features:import-maps"
@@ -604,7 +626,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -639,7 +662,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -651,20 +675,20 @@
           },
           "module": {
             "__compat": {
-              "description": "<code>type=\"module\"</code>",
+              "description": "`type=\"module\"`",
               "tags": [
                 "web-features:js-modules"
               ],
               "support": {
                 "chrome": {
                   "version_added": "61",
-                  "notes": "Module scripts without the <code>async</code> attribute do not load when the page is served as XHTML (<code>application/xhtml+xml</code>). See <a href='https://crbug.com/717643'>bug 717643</a>."
+                  "notes": "Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See [bug 40518469](https://crbug.com/40518469)."
                 },
                 "chrome_android": "mirror",
                 "edge": [
                   {
                     "version_added": "79",
-                    "notes": "Module scripts without the <code>async</code> attribute do not load when the page is served as XHTML (<code>application/xhtml+xml</code>). See <a href='https://crbug.com/717643'>bug 717643</a>."
+                    "notes": "Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See [bug 40518469](https://crbug.com/40518469)."
                   },
                   {
                     "version_added": "16",
@@ -683,11 +707,12 @@
                 "opera_android": "mirror",
                 "safari": {
                   "version_added": "10.1",
-                  "notes": "Module scripts do not load when the page is served as XHTML (<code>application/xhtml+xml</code>)."
+                  "notes": "Module scripts do not load when the page is served as XHTML (`application/xhtml+xml`)."
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -698,8 +723,11 @@
           },
           "speculationrules": {
             "__compat": {
-              "description": "<code>type=\"speculationrules\"</code>",
+              "description": "`type=\"speculationrules\"`",
               "spec_url": "https://wicg.github.io/nav-speculation/speculation-rules.html#speculation-rules-script",
+              "tags": [
+                "web-features:speculation-rules"
+              ],
               "support": {
                 "chrome": [
                   {
@@ -737,7 +765,10 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": {
+                  "version_added": false
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -747,7 +778,10 @@
             },
             "eagerness": {
               "__compat": {
-                "description": "<code>eagerness</code> key",
+                "description": "`eagerness` key",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "121"
@@ -769,7 +803,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -780,12 +817,15 @@
             },
             "expects_no_vary_search": {
               "__compat": {
-                "description": "<code>expects_no_vary_search</code> key",
+                "description": "`expects_no_vary_search` key",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "121",
                     "partial_implementation": true,
-                    "notes": "Supported for <code>prefetch</code> only."
+                    "notes": "Supported for `prefetch` only."
                   },
                   "chrome_android": "mirror",
                   "edge": "mirror",
@@ -804,7 +844,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -815,7 +858,10 @@
             },
             "prefetch": {
               "__compat": {
-                "description": "<code>prefetch</code> key",
+                "description": "`prefetch` key",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "110"
@@ -839,7 +885,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -850,7 +899,10 @@
             },
             "prerender": {
               "__compat": {
-                "description": "<code>prerender</code> key",
+                "description": "`prerender` key",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "105"
@@ -874,7 +926,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -885,7 +940,10 @@
             },
             "referrer_policy": {
               "__compat": {
-                "description": "<code>referrer_policy</code> key",
+                "description": "`referrer_policy` key",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "111"
@@ -907,7 +965,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -918,7 +979,10 @@
             },
             "relative_to": {
               "__compat": {
-                "description": "<code>relative_to</code> key",
+                "description": "`relative_to` key",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "121"
@@ -940,7 +1004,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -951,7 +1018,10 @@
             },
             "requires": {
               "__compat": {
-                "description": "<code>requires</code> key",
+                "description": "`requires` key",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "110"
@@ -975,7 +1045,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -985,7 +1058,10 @@
               },
               "anonymous-client-ip-when-cross-origin": {
                 "__compat": {
-                  "description": "<code>anonymous-client-ip-when-cross-origin</code> value",
+                  "description": "`anonymous-client-ip-when-cross-origin` value",
+                  "tags": [
+                    "web-features:speculation-rules"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "110"
@@ -1017,7 +1093,10 @@
                     "samsunginternet_android": {
                       "version_added": false
                     },
-                    "webview_android": "mirror"
+                    "webview_android": {
+                      "version_added": false
+                    },
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": true,
@@ -1029,7 +1108,10 @@
             },
             "source_optional": {
               "__compat": {
-                "description": "<code>source</code> key is optional",
+                "description": "`source` key is optional",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "122"
@@ -1051,7 +1133,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -1062,7 +1147,10 @@
             },
             "urls": {
               "__compat": {
-                "description": "<code>urls</code> key",
+                "description": "`urls` key",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "109"
@@ -1086,7 +1174,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
@@ -1097,7 +1188,10 @@
             },
             "where": {
               "__compat": {
-                "description": "<code>where</code> key",
+                "description": "`where` key",
+                "tags": [
+                  "web-features:speculation-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "121"
@@ -1119,7 +1213,10 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": {
+                    "version_added": false
+                  },
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": true,
diff --git a/html/elements/search.json b/html/elements/search.json
index 814839bbffd333..6735f7e0978d05 100644
--- a/html/elements/search.json
+++ b/html/elements/search.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/section.json b/html/elements/section.json
index 4142fc890cbf8d..d043240efa1504 100644
--- a/html/elements/section.json
+++ b/html/elements/section.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/select.json b/html/elements/select.json
index 8badf1d4ed758a..973627850b1149 100644
--- a/html/elements/select.json
+++ b/html/elements/select.json
@@ -11,7 +11,7 @@
           "support": {
             "chrome": {
               "version_added": "1",
-              "notes": "<code>border-radius</code> on <code>&lt;select&gt;</code> elements is ignored unless <code>-webkit-appearance</code> is overridden to an appropriate value."
+              "notes": "`border-radius` on `&lt;select&gt;` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -19,11 +19,11 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Historically, Firefox has allowed keyboard and mouse events to bubble up from the <code>&lt;option&gt;</code> element to the parent <code>&lt;select&gt;</code> element, although this behavior is inconsistent across many browsers. For better Web compatibility (and for technical reasons), when Firefox is in multi-process mode the <code>&lt;select&gt;</code> element is displayed as a drop-down list. The behavior is unchanged if the <code>&lt;select&gt;</code> is presented inline and it has either the multiple attribute defined or a size attribute set to more than 1. Rather than watching <code>&lt;option&gt;</code> elements for events, you should watch for change events on <code>&lt;select&gt;</code>. See <a href='https://bugzil.la/1090602'>bug 1090602</a> for details."
+              "notes": "Historically, Firefox has allowed keyboard and mouse events to bubble up from the `&lt;option&gt;` element to the parent `&lt;select&gt;` element, although this behavior is inconsistent across many browsers. For better Web compatibility (and for technical reasons), when Firefox is in multi-process mode the `&lt;select&gt;` element is displayed as a drop-down list. The behavior is unchanged if the `&lt;select&gt;` is presented inline and it has either the multiple attribute defined or a size attribute set to more than 1. Rather than watching `&lt;option&gt;` elements for events, you should watch for change events on `&lt;select&gt;`. See [bug 1090602](https://bugzil.la/1090602) for details."
             },
             "firefox_android": {
               "version_added": "4",
-              "notes": "Firefox for Android, by default, sets a <code>background-image</code> gradient on all <code>&lt;select multiple&gt;</code> elements. This can be disabled using <code>background-image: none</code>."
+              "notes": "Firefox for Android, by default, sets a `background-image` gradient on all `&lt;select multiple&gt;` elements. This can be disabled using `background-image: none`."
             },
             "ie": {
               "version_added": "≤11"
@@ -37,17 +37,18 @@
             },
             "safari": {
               "version_added": "1",
-              "notes": "<code>border-radius</code> on <code>&lt;select&gt;</code> elements is ignored unless <code>-webkit-appearance</code> is overridden to an appropriate value."
+              "notes": "`border-radius` on `&lt;select&gt;` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37",
               "notes": [
-                "In the Browser app for Android 4.1 (and possibly later versions), there is a bug where the menu indicator triangle on the side of a <code>&lt;select&gt;</code> will not be displayed if a <code>background</code>, <code>border</code>, or <code>border-radius</code> style is applied to the <code>&lt;select&gt;</code>.",
-                "<code>border-radius</code> on <code>&lt;select&gt;</code> elements is ignored unless <code>-webkit-appearance</code> is overridden to an appropriate value."
+                "In the Browser app for Android 4.1 (and possibly later versions), there is a bug where the menu indicator triangle on the side of a `&lt;select&gt;` will not be displayed if a `background`, `border`, or `border-radius` style is applied to the `&lt;select&gt;`.",
+                "`border-radius` on `&lt;select&gt;` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value."
               ]
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -96,7 +97,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,7 +137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -173,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -184,7 +188,7 @@
         },
         "hr_in_select": {
           "__compat": {
-            "description": "<code>&lt;hr&gt;</code> in <code>&lt;select&gt;</code>",
+            "description": "`&lt;hr&gt;` in `&lt;select&gt;`",
             "tags": [
               "web-features:select"
             ],
@@ -193,8 +197,8 @@
                 "version_added": "119",
                 "partial_implementation": true,
                 "notes": [
-                  "Only exposes the <code>&lt;hr&gt;</code> visually in the page when the menu is expanded (arrowing within the collapsed menu does not show them).",
-                  "Does not expose the <code>&lt;hr&gt;</code> within the accessibility tree."
+                  "Only exposes the `&lt;hr&gt;` visually in the page when the menu is expanded (arrowing within the collapsed menu does not show them).",
+                  "Does not expose the `&lt;hr&gt;` within the accessibility tree."
                 ]
               },
               "chrome_android": {
@@ -204,7 +208,7 @@
               "firefox": {
                 "version_added": "122",
                 "partial_implementation": true,
-                "notes": "Does not expose the <code>&lt;hr&gt;</code> within the accessibility tree."
+                "notes": "Does not expose the `&lt;hr&gt;` within the accessibility tree."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -216,15 +220,16 @@
               "safari": {
                 "version_added": "17",
                 "partial_implementation": true,
-                "notes": "Does not expose the <code>&lt;hr&gt;</code> within the accessibility tree."
+                "notes": "Does not expose the `&lt;hr&gt;` within the accessibility tree."
               },
               "safari_ios": {
                 "version_added": "17.4",
                 "partial_implementation": true,
-                "notes": "Does not expose the <code>&lt;hr&gt;</code> within the accessibility tree."
+                "notes": "Does not expose the `&lt;hr&gt;` within the accessibility tree."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -263,7 +268,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -301,7 +307,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -340,7 +347,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -383,7 +391,8 @@
                 "version_added": false
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/slot.json b/html/elements/slot.json
index d40b4f73a37180..ef42dafa4006d7 100644
--- a/html/elements/slot.json
+++ b/html/elements/slot.json
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -66,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/small.json b/html/elements/small.json
index 70d605e0edfe37..18acea9cd96554 100644
--- a/html/elements/small.json
+++ b/html/elements/small.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/source.json b/html/elements/source.json
index 3a8135d285bc1b..f80929c230ddc9 100644
--- a/html/elements/source.json
+++ b/html/elements/source.json
@@ -18,7 +18,7 @@
             },
             "firefox": {
               "version_added": "3.5",
-              "notes": "Until Firefox 15, Firefox picked the first source element that has a type matching the MIME-type of a supported media format; see <a href='https://bugzil.la/449363'>bug 449363</a> for details."
+              "notes": "Until Firefox 15, Firefox picked the first source element that has a type matching the MIME-type of a supported media format; see [bug 449363](https://bugzil.la/449363) for details."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -67,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -93,7 +95,7 @@
               "firefox": {
                 "version_added": "15",
                 "impl_url": "https://bugzil.la/1836128",
-                "notes": "<code>media</code> is supported in <code>&lt;source&gt;</code> within <code>&lt;picture&gt;</code>, <code>&lt;audio&gt;</code>, and <code>&lt;video&gt;</code>. In Firefox 53-119, <code>media</code> is supported only in <code>&lt;source&gt;</code> within <code>&lt;picture&gt;</code>."
+                "notes": "`media` is supported in `&lt;source&gt;` within `&lt;picture&gt;`, `&lt;audio&gt;`, and `&lt;video&gt;`. In Firefox 53-119, `media` is supported only in `&lt;source&gt;` within `&lt;picture&gt;`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -107,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -127,12 +130,12 @@
                 {
                   "version_added": "34",
                   "version_removed": "38",
-                  "notes": "Supports a subset of the syntax for resolution switching (using the <code>x</code> descriptor), but not the full syntax that can be used with <code>sizes</code> (using the <code>w</code> descriptor)."
+                  "notes": "Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor)."
                 }
               ],
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "13"
               },
               "firefox": {
                 "version_added": "38"
@@ -149,7 +152,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -187,7 +191,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -207,12 +212,12 @@
                 {
                   "version_added": "34",
                   "version_removed": "38",
-                  "notes": "Supports a subset of the syntax for resolution switching (using the <code>x</code> descriptor), but not the full syntax that can be used with <code>sizes</code> (using the <code>w</code> descriptor)."
+                  "notes": "Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor)."
                 }
               ],
               "chrome_android": "mirror",
               "edge": {
-                "version_added": "≤18"
+                "version_added": "13"
               },
               "firefox": {
                 "version_added": "38"
@@ -229,7 +234,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -267,7 +273,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -303,7 +310,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/span.json b/html/elements/span.json
index c01f1f2aba2291..cc021f951f0788 100644
--- a/html/elements/span.json
+++ b/html/elements/span.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/strike.json b/html/elements/strike.json
index c7cb1721d6b2f2..0018a01ff64258 100644
--- a/html/elements/strike.json
+++ b/html/elements/strike.json
@@ -15,7 +15,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this element implemented the <code>HTMLSpanElement</code> interface instead of the standard <code>HTMLElement</code> interface."
+              "notes": "Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/strong.json b/html/elements/strong.json
index 94b387939e1a4c..5b0187135d733a 100644
--- a/html/elements/strong.json
+++ b/html/elements/strong.json
@@ -18,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, creating a <code>&lt;strong&gt;</code> element incorrectly resulted in an <code>HTMLSpanElement</code> object, instead of the expected <code>HTMLElement</code>."
+              "notes": "Before Firefox 4, creating a `&lt;strong&gt;` element incorrectly resulted in an `HTMLSpanElement` object, instead of the expected `HTMLElement`."
             },
             "firefox_android": {
               "version_added": "4"
@@ -34,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/style.json b/html/elements/style.json
index 98d50027cea02a..3a9bf558918332 100644
--- a/html/elements/style.json
+++ b/html/elements/style.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -67,15 +68,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false,
-                "impl_url": "https://webkit.org/b/267232"
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -114,7 +115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,7 +158,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/sub.json b/html/elements/sub.json
index 631fdd6fdf8eb5..38601517e8e536 100644
--- a/html/elements/sub.json
+++ b/html/elements/sub.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/summary.json b/html/elements/summary.json
index fc5189ef30f53b..117c263fd86f93 100644
--- a/html/elements/summary.json
+++ b/html/elements/summary.json
@@ -28,7 +28,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,7 +39,7 @@
         },
         "display_list_item": {
           "__compat": {
-            "description": "<code>display: list-item</code>",
+            "description": "`display: list-item`",
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -60,7 +61,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/sup.json b/html/elements/sup.json
index a41747873b20bf..36238ec69e3349 100644
--- a/html/elements/sup.json
+++ b/html/elements/sup.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/table.json b/html/elements/table.json
index eaee1cfd459c66..6b6c22a999b26d 100644
--- a/html/elements/table.json
+++ b/html/elements/table.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -72,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -148,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -186,7 +190,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -224,7 +229,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -262,7 +268,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -300,7 +307,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -338,7 +346,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -376,7 +385,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/tbody.json b/html/elements/tbody.json
index b9b7241b27e320..11143c399dc32d 100644
--- a/html/elements/tbody.json
+++ b/html/elements/tbody.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -177,7 +181,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -212,7 +217,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/td.json b/html/elements/td.json
index ced84548c879ad..63c3045441eb00 100644
--- a/html/elements/td.json
+++ b/html/elements/td.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,7 +105,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -137,7 +140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -175,7 +179,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -210,7 +215,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -245,7 +251,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -282,7 +289,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -319,7 +327,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -356,7 +365,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -366,7 +376,10 @@
           },
           "rowspan_zero": {
             "__compat": {
-              "description": "<code>rowspan</code> attribute with value <code>0</code> (extend to the end of the row group)",
+              "description": "`rowspan` attribute with value `0` (extend to the end of the row group)",
+              "tags": [
+                "web-features:table"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "65"
@@ -388,7 +401,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -423,7 +437,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -458,7 +473,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -492,7 +508,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/template.json b/html/elements/template.json
index 118f73598570aa..cf6c5c57e8fa90 100644
--- a/html/elements/template.json
+++ b/html/elements/template.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -98,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -176,7 +180,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/html/elements/textarea.json b/html/elements/textarea.json
index cc4fcad07e49a4..7ef669451ea037 100644
--- a/html/elements/textarea.json
+++ b/html/elements/textarea.json
@@ -19,9 +19,9 @@
             "firefox": {
               "version_added": "1",
               "notes": [
-                "Before Firefox 6, when a <code>&lt;textarea&gt;</code> was focused, the insertion point was placed at the end of the text by default. Other major browsers place the insertion point at the beginning of the text.",
-                "A default background-image gradient is applied to all <code>&lt;textarea&gt;</code> elements, which can be disabled using <code>background-image: none</code>.",
-                "Before Firefox 89, manipulating the content of <code>&lt;textarea&gt;</code> elements using <code>Document.execCommand()</code> commands requires workarounds (see <a href='https://bugzil.la/1220696'>bug 1220696</a>)."
+                "Before Firefox 6, when a `&lt;textarea&gt;` was focused, the insertion point was placed at the end of the text by default. Other major browsers place the insertion point at the beginning of the text.",
+                "A default background-image gradient is applied to all `&lt;textarea&gt;` elements, which can be disabled using `background-image: none`.",
+                "Before Firefox 89, manipulating the content of `&lt;textarea&gt;` elements using `Document.execCommand()` commands requires workarounds (see [bug 1220696](https://bugzil.la/1220696))."
               ]
             },
             "firefox_android": "mirror",
@@ -40,10 +40,11 @@
             },
             "safari_ios": {
               "version_added": "≤3",
-              "notes": "Unlike other major browsers, a default style of <code>opacity: 0.4</code> is applied to disabled <code>&lt;textarea&gt;</code> elements."
+              "notes": "Unlike other major browsers, a default style of `opacity: 0.4` is applied to disabled `&lt;textarea&gt;` elements."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,7 +79,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -88,7 +90,7 @@
           },
           "new-password": {
             "__compat": {
-              "description": "<code>new-password</code> value",
+              "description": "`new-password` value",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -110,7 +112,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -121,7 +124,7 @@
           },
           "one-time-code": {
             "__compat": {
-              "description": "<code>one-time-code</code> value",
+              "description": "`one-time-code` value",
               "support": {
                 "chrome": {
                   "version_added": "93"
@@ -147,7 +150,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -158,7 +162,7 @@
           },
           "webauthn": {
             "__compat": {
-              "description": "<code>webauthn</code> value",
+              "description": "`webauthn` value",
               "spec_url": "https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#autofill-processing-model:attr-fe-autocomplete-webauthn",
               "support": {
                 "chrome": {
@@ -181,7 +185,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -224,7 +229,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -266,7 +272,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -309,7 +316,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -351,7 +359,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -391,13 +400,14 @@
               },
               "safari": {
                 "version_added": "5",
-                "notes": "Before Safari 17, newline characters counted as two characters instead of one. See <a href='https://webkit.org/b/249916'>bug 249916</a>."
+                "notes": "Before Safari 17, newline characters counted as two characters instead of one. See [bug 249916](https://webkit.org/b/249916)."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -436,7 +446,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -478,7 +489,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -524,7 +536,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -534,7 +547,7 @@
           },
           "line_breaks": {
             "__compat": {
-              "description": "Line breaks in <code>placeholder</code>",
+              "description": "Line breaks in `placeholder`",
               "tags": [
                 "web-features:textarea"
               ],
@@ -561,7 +574,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -605,7 +619,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -651,7 +666,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -693,7 +709,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -730,7 +747,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -774,7 +792,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -784,7 +803,7 @@
           },
           "hard": {
             "__compat": {
-              "description": "<code>hard</code> value",
+              "description": "`hard` value",
               "tags": [
                 "web-features:textarea"
               ],
@@ -811,7 +830,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/html/elements/tfoot.json b/html/elements/tfoot.json
index 1848a3f2141c9a..9e66624842be9c 100644
--- a/html/elements/tfoot.json
+++ b/html/elements/tfoot.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -177,7 +181,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -212,7 +217,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/th.json b/html/elements/th.json
index 069b56226dbdd3..55278e4b2365e9 100644
--- a/html/elements/th.json
+++ b/html/elements/th.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -71,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -106,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -178,7 +182,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -213,7 +218,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -248,7 +254,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -285,7 +292,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -322,7 +330,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -359,7 +368,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -369,7 +379,10 @@
           },
           "rowspan_zero": {
             "__compat": {
-              "description": "<code>rowspan</code> attribute with value <code>0</code> (extend to the end of the row group)",
+              "description": "`rowspan` attribute with value `0` (extend to the end of the row group)",
+              "tags": [
+                "web-features:table"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -391,7 +404,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -429,7 +443,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -464,7 +479,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -498,7 +514,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/thead.json b/html/elements/thead.json
index e9e61ba7644773..e292c38a72da65 100644
--- a/html/elements/thead.json
+++ b/html/elements/thead.json
@@ -32,11 +32,12 @@
             },
             "safari": {
               "version_added": "1",
-              "notes": "Backgrounds applied to <code>&lt;thead&gt;</code> elements will be applied to each table cell, rather than the entire header. To mimic the behavior of other browsers, set the <code>background-attachment</code> CSS property to <code>fixed</code>."
+              "notes": "Backgrounds applied to `&lt;thead&gt;` elements will be applied to each table cell, rather than the entire header. To mimic the behavior of other browsers, set the `background-attachment` CSS property to `fixed`."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -108,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -143,7 +146,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -178,7 +182,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -213,7 +218,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/time.json b/html/elements/time.json
index 7548896615116b..7d918a9ff4a779 100644
--- a/html/elements/time.json
+++ b/html/elements/time.json
@@ -49,7 +49,8 @@
               "version_added": "4"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,7 +104,8 @@
                 "version_added": "4"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/title.json b/html/elements/title.json
index 9c855334f184cd..27fdc38ad06c1d 100644
--- a/html/elements/title.json
+++ b/html/elements/title.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/tr.json b/html/elements/tr.json
index fec894597c9ef1..c32b92863ac2aa 100644
--- a/html/elements/tr.json
+++ b/html/elements/tr.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -69,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -107,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -177,7 +181,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -212,7 +217,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/track.json b/html/elements/track.json
index cf3e803254afac..22ca6a7a512d3c 100644
--- a/html/elements/track.json
+++ b/html/elements/track.json
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -79,7 +80,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -119,7 +121,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,11 +132,11 @@
           },
           "descriptions": {
             "__compat": {
-              "description": "<code>kind='descriptions'</code>",
+              "description": "`kind='descriptions'`",
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/1447858"
+                  "impl_url": "https://crbug.com/40913979"
                 },
                 "chrome_android": "mirror",
                 "edge": "mirror",
@@ -154,7 +157,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -195,7 +199,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -225,7 +230,7 @@
                 {
                   "version_added": "31",
                   "partial_implementation": true,
-                  "notes": "Before Firefox 50, setting the <code>src</code> didn't work, though it didn't raise an error."
+                  "notes": "Before Firefox 50, setting the `src` didn't work, though it didn't raise an error."
                 }
               ],
               "firefox_android": "mirror",
@@ -242,7 +247,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -282,7 +288,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/tt.json b/html/elements/tt.json
index 9badc4bd096a62..342d1bfa17bfea 100644
--- a/html/elements/tt.json
+++ b/html/elements/tt.json
@@ -15,7 +15,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this element implemented the <code>HTMLSpanElement</code> interface instead of the standard <code>HTMLElement</code> interface."
+              "notes": "Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/u.json b/html/elements/u.json
index 5846c9d2dd1f55..d98c9be58f1646 100644
--- a/html/elements/u.json
+++ b/html/elements/u.json
@@ -18,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this element implemented the <code>HTMLSpanElement</code> interface instead of the standard <code>HTMLElement</code> interface."
+              "notes": "Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface."
             },
             "firefox_android": {
               "version_added": "4"
@@ -34,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/ul.json b/html/elements/ul.json
index 1fe0eb3c4f4784..b6dec7b21adab6 100644
--- a/html/elements/ul.json
+++ b/html/elements/ul.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,7 +101,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/var.json b/html/elements/var.json
index 3652f6873344f3..6092fb44317c9d 100644
--- a/html/elements/var.json
+++ b/html/elements/var.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/video.json b/html/elements/video.json
index 83bf941e50e2ba..32905aa78f5cd3 100644
--- a/html/elements/video.json
+++ b/html/elements/video.json
@@ -35,7 +35,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +46,7 @@
         },
         "aspect_ratio_computed_from_attributes": {
           "__compat": {
-            "description": "Aspect ratio computed from <code>width</code> and <code>height</code> attributes",
+            "description": "Aspect ratio computed from `width` and `height` attributes",
             "tags": [
               "web-features:aspect-ratio"
             ],
@@ -70,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,13 +114,58 @@
                 "version_added": "10"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
+          },
+          "requires_muted_audio": {
+            "__compat": {
+              "description": "Autoplay requires `muted` attribute or no audio track",
+              "support": {
+                "chrome": {
+                  "version_added": "67"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "67"
+                },
+                "firefox_android": [
+                  {
+                    "version_added": "91"
+                  },
+                  {
+                    "version_added": "67",
+                    "version_removed": "79",
+                    "notes": "Between versions 79 and 91, the default behavior was to block videos from autoplaying, regardless of whether audio was muted."
+                  }
+                ],
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "16"
+                },
+                "safari_ios": {
+                  "version_added": "10"
+                },
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": false,
+                "deprecated": false
+              }
+            }
           }
         },
         "controls": {
@@ -154,7 +201,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -190,7 +238,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -221,7 +270,7 @@
                   "version_added": "12",
                   "version_removed": "74",
                   "partial_implementation": true,
-                  "notes": "With <code>crossorigin=\"use-credentials\"</code>, cookies aren't sent during seek. See <a href='https://bugzil.la/1532722'>bug 1532722</a>."
+                  "notes": "With `crossorigin=\"use-credentials\"`, cookies aren't sent during seek. See [bug 1532722](https://bugzil.la/1532722)."
                 }
               ],
               "firefox_android": "mirror",
@@ -236,7 +285,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -286,7 +336,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -298,6 +349,9 @@
         "disableremoteplayback": {
           "__compat": {
             "spec_url": "https://w3c.github.io/remote-playback/#the-disableremoteplayback-attribute",
+            "tags": [
+              "web-features:remote-playback"
+            ],
             "support": {
               "chrome": {
                 "version_added": "121"
@@ -325,8 +379,9 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/521319"
-              }
+                "impl_url": "https://crbug.com/234081017"
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -368,7 +423,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -410,7 +466,8 @@
                 "version_added": "6"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -448,7 +505,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -487,7 +545,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -529,7 +588,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -547,7 +607,7 @@
             "support": {
               "chrome": {
                 "version_added": "3",
-                "notes": "Defaults to <code>metadata</code> in Chrome 64."
+                "notes": "Defaults to `metadata` in Chrome 64."
               },
               "chrome_android": "mirror",
               "edge": {
@@ -570,7 +630,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -612,7 +673,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -654,7 +716,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/html/elements/wbr.json b/html/elements/wbr.json
index 4ef0764eac6672..ce65480adb3097 100644
--- a/html/elements/wbr.json
+++ b/html/elements/wbr.json
@@ -36,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/elements/xmp.json b/html/elements/xmp.json
index d8ec8edb332aa2..f8985b31145a54 100644
--- a/html/elements/xmp.json
+++ b/html/elements/xmp.json
@@ -15,7 +15,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 4, this element implemented the <code>HTMLSpanElement</code> interface instead of the standard <code>HTMLElement</code> interface."
+              "notes": "Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/global_attributes.json b/html/global_attributes.json
index fbcecd2007778a..10ec9840fd1470 100644
--- a/html/global_attributes.json
+++ b/html/global_attributes.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -68,7 +69,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -104,7 +106,8 @@
               "version_added": "5"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -113,6 +116,45 @@
           }
         }
       },
+      "autocorrect": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/autocorrect",
+          "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#attr-autocorrect",
+          "support": {
+            "chrome": {
+              "version_added": false
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "preview"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "14.1",
+              "partial_implementation": true,
+              "notes": [
+                "Takes values of `true`/`false` (instead of `on`/`off`).",
+                "Allowed on `&lt;input type='password'&gt;` elements."
+              ]
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "autofocus": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/autofocus",
@@ -129,7 +171,7 @@
                 "version_added": "1",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Supported for the <code>&lt;button&gt;</code>, <code>&lt;input&gt;</code>, <code>&lt;select&gt;</code>, and <code>&lt;textarea&gt;</code> elements."
+                "notes": "Supported for the `&lt;button&gt;`, `&lt;input&gt;`, `&lt;select&gt;`, and `&lt;textarea&gt;` elements."
               }
             ],
             "chrome_android": "mirror",
@@ -141,7 +183,7 @@
                 "version_added": "12",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Supported for the <code>&lt;button&gt;</code>, <code>&lt;input&gt;</code>, <code>&lt;select&gt;</code>, and <code>&lt;textarea&gt;</code> elements."
+                "notes": "Supported for the `&lt;button&gt;`, `&lt;input&gt;`, `&lt;select&gt;`, and `&lt;textarea&gt;` elements."
               }
             ],
             "firefox": [
@@ -152,14 +194,14 @@
                 "version_added": "1",
                 "version_removed": "110",
                 "partial_implementation": true,
-                "notes": "Supported for the <code>&lt;button&gt;</code>, <code>&lt;input&gt;</code>, <code>&lt;select&gt;</code>, and <code>&lt;textarea&gt;</code> elements."
+                "notes": "Supported for the `&lt;button&gt;`, `&lt;input&gt;`, `&lt;select&gt;`, and `&lt;textarea&gt;` elements."
               }
             ],
             "firefox_android": "mirror",
             "ie": {
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "Supported for the <code>&lt;button&gt;</code>, <code>&lt;input&gt;</code>, <code>&lt;select&gt;</code>, and <code>&lt;textarea&gt;</code> elements."
+              "notes": "Supported for the `&lt;button&gt;`, `&lt;input&gt;`, `&lt;select&gt;`, and `&lt;textarea&gt;` elements."
             },
             "oculus": "mirror",
             "opera": [
@@ -170,7 +212,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "66",
                 "partial_implementation": true,
-                "notes": "Supported for the <code>&lt;button&gt;</code>, <code>&lt;input&gt;</code>, <code>&lt;select&gt;</code>, and <code>&lt;textarea&gt;</code> elements."
+                "notes": "Supported for the `&lt;button&gt;`, `&lt;input&gt;`, `&lt;select&gt;`, and `&lt;textarea&gt;` elements."
               }
             ],
             "opera_android": [
@@ -181,7 +223,7 @@
                 "version_added": "≤12.1",
                 "version_removed": "57",
                 "partial_implementation": true,
-                "notes": "Supported for the <code>&lt;button&gt;</code>, <code>&lt;input&gt;</code>, <code>&lt;select&gt;</code>, and <code>&lt;textarea&gt;</code> elements."
+                "notes": "Supported for the `&lt;button&gt;`, `&lt;input&gt;`, `&lt;select&gt;`, and `&lt;textarea&gt;` elements."
               }
             ],
             "safari": [
@@ -192,10 +234,13 @@
                 "version_added": "4",
                 "version_removed": "15.4",
                 "partial_implementation": true,
-                "notes": "Supported for the <code>&lt;button&gt;</code>, <code>&lt;input&gt;</code>, <code>&lt;select&gt;</code>, and <code>&lt;textarea&gt;</code> elements."
+                "notes": "Supported for the `&lt;button&gt;`, `&lt;input&gt;`, `&lt;select&gt;`, and `&lt;textarea&gt;` elements."
               }
             ],
-            "safari_ios": "mirror",
+            "safari_ios": {
+              "version_added": "16.4",
+              "notes": "If there's no hardware keyboard connected, then the `autofocus` attribute has no effect (for example, the `focus` event doesn't fire and the element does not match the `:focus` selector)."
+            },
             "samsunginternet_android": "mirror",
             "webview_android": [
               {
@@ -205,9 +250,10 @@
                 "version_added": "≤37",
                 "version_removed": "79",
                 "partial_implementation": true,
-                "notes": "Supported for the <code>&lt;button&gt;</code>, <code>&lt;input&gt;</code>, <code>&lt;select&gt;</code>, and <code>&lt;textarea&gt;</code> elements."
+                "notes": "Supported for the `&lt;button&gt;`, `&lt;input&gt;`, `&lt;select&gt;`, and `&lt;textarea&gt;` elements."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -243,7 +289,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -281,7 +328,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,7 +339,7 @@
         },
         "plaintext-only": {
           "__compat": {
-            "description": "<code>contenteditable=\"plaintext-only\"</code>",
+            "description": "`contenteditable=\"plaintext-only\"`",
             "support": {
               "chrome": {
                 "version_added": "51"
@@ -301,7 +349,7 @@
                 "version_added": "≤79"
               },
               "firefox": {
-                "version_added": false
+                "version_added": "preview"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -315,7 +363,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -327,7 +376,7 @@
       },
       "data_attributes": {
         "__compat": {
-          "description": "<code>data-*</code> attributes",
+          "description": "`data-*` attributes",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/data-*",
           "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#attr-data-*",
           "support": {
@@ -353,7 +402,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -387,7 +437,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -425,7 +476,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -463,7 +515,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -476,6 +529,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/exportparts",
           "spec_url": "https://drafts.csswg.org/css-shadow-parts/#element-attrdef-html-global-exportparts",
+          "tags": [
+            "web-features:shadow-parts"
+          ],
           "support": {
             "chrome": {
               "version_added": "73"
@@ -497,7 +553,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -530,13 +587,14 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "5.1",
-              "notes": "This attribute has no effect on <code>&lt;option&gt;</code> elements."
+              "notes": "This attribute has no effect on `&lt;option&gt;` elements."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -546,7 +604,7 @@
         },
         "until-found_value": {
           "__compat": {
-            "description": "<code>until-found</code> value",
+            "description": "`until-found` value",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/hidden",
             "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#the-hidden-attribute",
             "tags": [
@@ -577,7 +635,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -607,7 +666,7 @@
                 "version_added": "1",
                 "version_removed": "32",
                 "partial_implementation": true,
-                "notes": "<code>id</code> is a true global attribute only since Firefox 32."
+                "notes": "`id` is a true global attribute only since Firefox 32."
               }
             ],
             "firefox_android": "mirror",
@@ -622,7 +681,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -659,7 +719,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -701,10 +762,11 @@
             },
             "safari_ios": {
               "version_added": "12.2",
-              "notes": "Before iOS 13, <code>inputmode=\"none\"</code> had no effect."
+              "notes": "Before iOS 13, `inputmode=\"none\"` had no effect."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -713,112 +775,6 @@
           }
         }
       },
-      "invoketarget": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "enable-experimental-web-platform-features",
-                  "value_to_set": "enabled"
-                }
-              ]
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "dom.element.invokers.enabled",
-                  "value_to_set": "true"
-                }
-              ]
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "InvokerAttributesEnabled",
-                  "value_to_set": "true"
-                }
-              ]
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "invokeaction": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "enable-experimental-web-platform-features",
-                  "value_to_set": "enabled"
-                }
-              ]
-            },
-            "chrome_android": "mirror",
-            "edge": "mirror",
-            "firefox": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "dom.element.invokers.enabled",
-                  "value_to_set": "true"
-                }
-              ]
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
-            "safari": {
-              "version_added": "preview",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "InvokerAttributesEnabled",
-                  "value_to_set": "true"
-                }
-              ]
-            },
-            "safari_ios": "mirror",
-            "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": true,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
       "is": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/is",
@@ -848,7 +804,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -884,7 +841,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -918,7 +876,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -928,7 +887,7 @@
         },
         "nonce_hiding": {
           "__compat": {
-            "description": "<code>nonce</code> hiding behavior",
+            "description": "`nonce` hiding behavior",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -951,7 +910,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -965,6 +925,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/part",
           "spec_url": "https://drafts.csswg.org/css-shadow-parts/#part-attr",
+          "tags": [
+            "web-features:shadow-parts"
+          ],
           "support": {
             "chrome": {
               "version_added": "73"
@@ -986,7 +949,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1023,7 +987,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1065,7 +1030,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1109,7 +1075,8 @@
               "version_added": "9.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1121,7 +1088,10 @@
       "style": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/style",
-          "spec_url": "https://html.spec.whatwg.org/multipage/dom.html#the-style-attribute",
+          "spec_url": [
+            "https://html.spec.whatwg.org/multipage/dom.html#the-style-attribute",
+            "https://drafts.csswg.org/css-style-attr/#style-attribute"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1145,7 +1115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1180,11 +1151,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤4"
+              "version_added": "3.1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1220,7 +1192,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1254,7 +1227,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1292,7 +1266,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1305,6 +1280,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/virtualkeyboardpolicy",
           "spec_url": "https://w3c.github.io/virtual-keyboard/#dom-elementcontenteditable-virtualkeyboardpolicy",
+          "tags": [
+            "web-features:virtual-keyboard"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -1312,7 +1290,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1730568"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1322,11 +1301,13 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/230225"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -1337,7 +1318,11 @@
       },
       "writingsuggestions": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Global_attributes/writingsuggestions",
           "spec_url": "https://html.spec.whatwg.org/multipage/interaction.html#writing-suggestions",
+          "tags": [
+            "web-features:writingsuggestions"
+          ],
           "support": {
             "chrome": {
               "version_added": "124"
@@ -1360,7 +1345,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/background_color.json b/html/manifest/background_color.json
index da565dd86ecd0d..63c1f07e8276cd 100644
--- a/html/manifest/background_color.json
+++ b/html/manifest/background_color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/background_color",
           "spec_url": "https://w3c.github.io/manifest/#background_color-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/description.json b/html/manifest/description.json
index 2c97827c09b42d..ef26557352c495 100644
--- a/html/manifest/description.json
+++ b/html/manifest/description.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/description",
           "spec_url": "https://w3c.github.io/manifest-app-info/#description-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
               "version_added": "88"
@@ -29,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/display.json b/html/manifest/display.json
index 1f13c97567770c..e4d856f7982b2a 100644
--- a/html/manifest/display.json
+++ b/html/manifest/display.json
@@ -5,9 +5,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/display",
           "spec_url": "https://w3c.github.io/manifest/#display-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
-              "version_added": "39"
+              "version_added": "39",
+              "notes": "`display` and/or `display_override` are required for a web app to be installable."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -24,23 +28,172 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "17",
-              "partial_implementation": true,
-              "notes": "Does not support <code>fullscreen</code> or <code>minimal-ui</code>."
+              "version_added": "17"
             },
             "safari_ios": {
-              "version_added": "11.3",
-              "partial_implementation": true,
-              "notes": "Does not support <code>fullscreen</code> or <code>minimal-ui</code>."
+              "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "browser": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/display#browser",
+            "spec_url": "https://w3c.github.io/manifest/#dfn-browser",
+            "support": {
+              "chrome": {
+                "version_added": "39"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": {
+                "version_added": "47"
+              },
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "17"
+              },
+              "safari_ios": {
+                "version_added": "11.3"
+              },
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "fullscreen": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/display#fullscreen",
+            "spec_url": "https://w3c.github.io/manifest/#dfn-fullscreen",
+            "support": {
+              "chrome": {
+                "version_added": "39"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": {
+                "version_added": "47"
+              },
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "minimal-ui": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/display#minimal-ui",
+            "spec_url": "https://w3c.github.io/manifest/#dfn-minimal-ui",
+            "support": {
+              "chrome": {
+                "version_added": "39"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": {
+                "version_added": "47"
+              },
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "standalone": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/display#standalone",
+            "spec_url": "https://w3c.github.io/manifest/#dfn-standalone",
+            "support": {
+              "chrome": {
+                "version_added": "39"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": {
+                "version_added": "47"
+              },
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "17"
+              },
+              "safari_ios": {
+                "version_added": "11.3"
+              },
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/html/manifest/display_override.json b/html/manifest/display_override.json
index 8d6140abc1134d..c3c96b6e216007 100644
--- a/html/manifest/display_override.json
+++ b/html/manifest/display_override.json
@@ -7,7 +7,8 @@
           "spec_url": "https://wicg.github.io/manifest-incubations/#display_override-member",
           "support": {
             "chrome": {
-              "version_added": "89"
+              "version_added": "89",
+              "notes": "`display_override` and/or `display` are required for a web app to be installable."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -28,7 +29,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -38,7 +40,7 @@
         },
         "tabbed": {
           "__compat": {
-            "description": "<code>tabbed</code> display mode",
+            "description": "`tabbed` display mode",
             "spec_url": "https://wicg.github.io/manifest-incubations/#dfn-tabbed",
             "support": {
               "chrome": {
@@ -63,7 +65,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -74,8 +77,11 @@
         },
         "window-controls-overlay": {
           "__compat": {
-            "description": "<code>window-controls-overlay</code> display mode",
+            "description": "`window-controls-overlay` display mode",
             "spec_url": "https://wicg.github.io/window-controls-overlay/#addition-of-new-window-controls-overlay-display-mode",
+            "tags": [
+              "web-features:window-controls-overlay"
+            ],
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -99,7 +105,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/html/manifest/file_handlers.json b/html/manifest/file_handlers.json
index c15c2347e5e87a..d7576fe121cea6 100644
--- a/html/manifest/file_handlers.json
+++ b/html/manifest/file_handlers.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/file_handlers",
           "spec_url": "https://wicg.github.io/manifest-incubations/#file_handlers-member",
+          "tags": [
+            "web-features:app-file-handlers"
+          ],
           "support": {
             "chrome": {
               "version_added": "102"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/html/manifest/icons.json b/html/manifest/icons.json
index 47dfe758af0b7a..e319289b70192a 100644
--- a/html/manifest/icons.json
+++ b/html/manifest/icons.json
@@ -5,9 +5,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/icons",
           "spec_url": "https://w3c.github.io/manifest/#icons-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
-              "version_added": "39"
+              "version_added": "39",
+              "notes": "`icons` is required for a web app to be installable."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -25,14 +29,15 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "17",
-              "notes": "Only used when no <code>apple-touch-icon</code> is present with <code>\"purpose\": \"any\"</code> or no <code>\"purpose\"</code> key."
+              "notes": "Only used when no `apple-touch-icon` is present and either `\"purpose\" is set to \"any\"` or `\"purpose\"` is not specified."
             },
             "safari_ios": {
               "version_added": "15.4",
-              "notes": "Only used when no <code>apple-touch-icon</code> is present with <code>\"purpose\": \"any\"</code> or no <code>\"purpose\"</code> key."
+              "notes": "Only used when no `apple-touch-icon` is present and either `\"purpose\" is set to \"any\"` or `\"purpose\"` is not specified."
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/id.json b/html/manifest/id.json
index bb5982797aceb7..d08f38be19d8e1 100644
--- a/html/manifest/id.json
+++ b/html/manifest/id.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/id",
           "spec_url": "https://w3c.github.io/manifest/#id-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
               "version_added": "96"
@@ -31,7 +34,8 @@
               "version_added": "16.4"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/launch_handler.json b/html/manifest/launch_handler.json
index c76e05cd212aea..fc34444e61f64d 100644
--- a/html/manifest/launch_handler.json
+++ b/html/manifest/launch_handler.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -58,7 +59,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/html/manifest/name.json b/html/manifest/name.json
index 76059daf910697..fe3cf8c186450c 100644
--- a/html/manifest/name.json
+++ b/html/manifest/name.json
@@ -5,9 +5,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/name",
           "spec_url": "https://w3c.github.io/manifest/#name-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
-              "version_added": "39"
+              "version_added": "39",
+              "notes": "`name` or `short_name` is required for a web app to be installable."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -30,7 +34,8 @@
               "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/note_taking.json b/html/manifest/note_taking.json
index 1ad9c12c8b2ab6..5f40dac5773770 100644
--- a/html/manifest/note_taking.json
+++ b/html/manifest/note_taking.json
@@ -27,7 +27,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/html/manifest/orientation.json b/html/manifest/orientation.json
index 2f724755da0b3b..69181edb66413d 100644
--- a/html/manifest/orientation.json
+++ b/html/manifest/orientation.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/orientation",
           "spec_url": "https://w3c.github.io/manifest/#orientation-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
               "version_added": "39"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/prefer_related_applications.json b/html/manifest/prefer_related_applications.json
index 426b5f5e96bf5c..e6afb4bdfc0f66 100644
--- a/html/manifest/prefer_related_applications.json
+++ b/html/manifest/prefer_related_applications.json
@@ -7,7 +7,8 @@
           "spec_url": "https://w3c.github.io/manifest/#prefer_related_applications-member",
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": false,
+              "notes": "`prefer_related_applications` must be `false` or not present for a web app to be installable."
             },
             "chrome_android": {
               "version_added": "44"
@@ -31,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/html/manifest/protocol_handlers.json b/html/manifest/protocol_handlers.json
index d6928d32108ec8..1883a0bbac8194 100644
--- a/html/manifest/protocol_handlers.json
+++ b/html/manifest/protocol_handlers.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/protocol_handlers",
           "spec_url": "https://wicg.github.io/manifest-incubations/#protocol_handlers-member",
+          "tags": [
+            "web-features:app-protocol-handlers"
+          ],
           "support": {
             "chrome": {
               "version_added": "96"
@@ -28,7 +31,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -39,6 +43,9 @@
         "protocol": {
           "__compat": {
             "spec_url": "https://wicg.github.io/manifest-incubations/#protocol-member",
+            "tags": [
+              "web-features:app-protocol-handlers"
+            ],
             "support": {
               "chrome": {
                 "version_added": "96"
@@ -66,7 +73,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -78,6 +86,9 @@
         "url": {
           "__compat": {
             "spec_url": "https://wicg.github.io/manifest-incubations/#url-member",
+            "tags": [
+              "web-features:app-protocol-handlers"
+            ],
             "support": {
               "chrome": {
                 "version_added": "96"
@@ -105,7 +116,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/html/manifest/related_applications.json b/html/manifest/related_applications.json
index 5e5dae3877eb85..5c36eab4147ad7 100644
--- a/html/manifest/related_applications.json
+++ b/html/manifest/related_applications.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/html/manifest/scope.json b/html/manifest/scope.json
index 51218e8d99fd13..dc51a17aecc122 100644
--- a/html/manifest/scope.json
+++ b/html/manifest/scope.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/scope",
           "spec_url": "https://w3c.github.io/manifest/#scope-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
               "version_added": "53"
@@ -30,7 +33,8 @@
               "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/serviceworker.json b/html/manifest/serviceworker.json
index b72982aacbda71..28c52f80530fe7 100644
--- a/html/manifest/serviceworker.json
+++ b/html/manifest/serviceworker.json
@@ -4,6 +4,9 @@
       "serviceworker": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/serviceworker",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
               "version_added": "70"
@@ -27,7 +30,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -37,6 +41,9 @@
         },
         "scope": {
           "__compat": {
+            "tags": [
+              "web-features:manifest"
+            ],
             "support": {
               "chrome": {
                 "version_added": "70"
@@ -60,7 +67,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -71,6 +79,9 @@
         },
         "src": {
           "__compat": {
+            "tags": [
+              "web-features:manifest"
+            ],
             "support": {
               "chrome": {
                 "version_added": "70"
@@ -94,7 +105,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -105,6 +117,9 @@
         },
         "use_cache": {
           "__compat": {
+            "tags": [
+              "web-features:manifest"
+            ],
             "support": {
               "chrome": {
                 "version_added": "70"
@@ -128,7 +143,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/html/manifest/share_target.json b/html/manifest/share_target.json
index 49bb8a051aea7e..e08bdb22a4f0e5 100644
--- a/html/manifest/share_target.json
+++ b/html/manifest/share_target.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/share_target",
           "spec_url": "https://w3c.github.io/web-share-target/#share_target-member",
+          "tags": [
+            "web-features:app-share-targets"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -14,7 +17,8 @@
             },
             "edge": "mirror",
             "firefox": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1476515"
             },
             "firefox_android": {
               "version_added": false,
@@ -31,13 +35,15 @@
               "version_added": "63"
             },
             "safari": {
-              "version_added": false
+              "version_added": false,
+              "impl_url": "https://webkit.org/b/194593"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/html/manifest/short_name.json b/html/manifest/short_name.json
index dfb6440e91ab4e..faadc4c80277a8 100644
--- a/html/manifest/short_name.json
+++ b/html/manifest/short_name.json
@@ -5,9 +5,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/short_name",
           "spec_url": "https://w3c.github.io/manifest/#short_name-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
-              "version_added": "39"
+              "version_added": "39",
+              "notes": "`short_name` or `name` is required for a web app to be installable."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -30,7 +34,8 @@
               "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/shortcuts.json b/html/manifest/shortcuts.json
index c73fc268ac8850..6e834f02d737de 100644
--- a/html/manifest/shortcuts.json
+++ b/html/manifest/shortcuts.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/shortcuts",
           "spec_url": "https://w3c.github.io/manifest/#shortcuts-member",
+          "tags": [
+            "web-features:app-shortcuts"
+          ],
           "support": {
             "chrome": [
               {
@@ -39,7 +42,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/start_url.json b/html/manifest/start_url.json
index e7413cec246997..e62df89ca64df5 100644
--- a/html/manifest/start_url.json
+++ b/html/manifest/start_url.json
@@ -5,9 +5,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/start_url",
           "spec_url": "https://w3c.github.io/manifest/#start_url-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
-              "version_added": "39"
+              "version_added": "39",
+              "notes": "`start_url` is required for a web app to be installable."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -30,7 +34,8 @@
               "version_added": "11.3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/html/manifest/theme_color.json b/html/manifest/theme_color.json
index 4de3972eddd0b7..a5f74b3db19641 100644
--- a/html/manifest/theme_color.json
+++ b/html/manifest/theme_color.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/Manifest/theme_color",
           "spec_url": "https://w3c.github.io/manifest/#theme_color-member",
+          "tags": [
+            "web-features:manifest"
+          ],
           "support": {
             "chrome": {
               "version_added": "46"
@@ -30,7 +33,8 @@
               "version_added": "15"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/data-url.json b/http/data-url.json
index d69cddd412aa23..cf2a17c6eee74a 100644
--- a/http/data-url.json
+++ b/http/data-url.json
@@ -3,8 +3,11 @@
     "data-url": {
       "__compat": {
         "description": "data URL scheme",
-        "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Basics_of_HTTP/Data_URLs",
+        "mdn_url": "https://developer.mozilla.org/docs/Web/URI/Schemes/data",
         "spec_url": "https://www.rfc-editor.org/rfc/rfc2397#section-2",
+        "tags": [
+          "web-features:data-urls"
+        ],
         "support": {
           "chrome": {
             "version_added": "≤4"
@@ -35,7 +38,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -46,6 +50,9 @@
       "css_files": {
         "__compat": {
           "description": "CSS files",
+          "tags": [
+            "web-features:data-urls"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤4"
@@ -71,7 +78,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +91,9 @@
       "html_files": {
         "__compat": {
           "description": "HTML files",
+          "tags": [
+            "web-features:data-urls"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤4"
@@ -104,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -116,6 +128,9 @@
       "js_files": {
         "__compat": {
           "description": "JavaScript files",
+          "tags": [
+            "web-features:data-urls"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤4"
@@ -141,7 +156,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -153,6 +169,9 @@
       "top_level_navigation_blocked": {
         "__compat": {
           "description": "Top-level navigation blocked to data:// URIs",
+          "tags": [
+            "web-features:data-urls"
+          ],
           "support": {
             "chrome": {
               "version_added": "60"
@@ -178,7 +197,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Accept-CH.json b/http/headers/Accept-CH.json
index 0212fcf3ec7ceb..0630ab68167094 100644
--- a/http/headers/Accept-CH.json
+++ b/http/headers/Accept-CH.json
@@ -3,7 +3,7 @@
     "headers": {
       "Accept-CH": {
         "__compat": {
-          "description": "<code>Accept-CH</code> client hint accept (response) header",
+          "description": "`Accept-CH` client hint accept (response) header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Accept-CH",
           "spec_url": "https://www.rfc-editor.org/rfc/rfc8942#section-3.1",
           "support": {
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,7 +40,7 @@
         },
         "Content-DPR": {
           "__compat": {
-            "description": "<code>Content-DPR</code> token",
+            "description": "`Content-DPR` token",
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -63,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,7 +76,7 @@
         },
         "Device-Memory": {
           "__compat": {
-            "description": "<code>Device-Memory</code> token",
+            "description": "`Device-Memory` token",
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -98,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -109,7 +112,7 @@
         },
         "DPR": {
           "__compat": {
-            "description": "<code>DPR</code> token",
+            "description": "`DPR` token",
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -133,7 +136,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,7 +148,10 @@
         },
         "Sec-CH-UA": {
           "__compat": {
-            "description": "<code>Sec-CH-UA</code> token",
+            "description": "`Sec-CH-UA` token",
+            "tags": [
+              "web-features:ua-client-hints"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -166,7 +173,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -177,7 +185,10 @@
         },
         "Sec-CH-UA-Arch": {
           "__compat": {
-            "description": "<code>Sec-CH-UA-Arch</code> token",
+            "description": "`Sec-CH-UA-Arch` token",
+            "tags": [
+              "web-features:ua-client-hints"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -199,7 +210,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -210,7 +222,10 @@
         },
         "Sec-CH-UA-Full-Version": {
           "__compat": {
-            "description": "<code>Sec-CH-UA-Full-Version</code> token",
+            "description": "`Sec-CH-UA-Full-Version` token",
+            "tags": [
+              "web-features:ua-client-hints"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -232,7 +247,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -243,7 +259,10 @@
         },
         "Sec-CH-UA-Mobile": {
           "__compat": {
-            "description": "<code>Sec-CH-UA-Mobile</code> token",
+            "description": "`Sec-CH-UA-Mobile` token",
+            "tags": [
+              "web-features:ua-client-hints"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -265,7 +284,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -276,7 +296,10 @@
         },
         "Sec-CH-UA-Model": {
           "__compat": {
-            "description": "<code>Sec-CH-UA-Model</code> token",
+            "description": "`Sec-CH-UA-Model` token",
+            "tags": [
+              "web-features:ua-client-hints"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -298,7 +321,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -309,7 +333,10 @@
         },
         "Sec-CH-UA-Platform": {
           "__compat": {
-            "description": "<code>Sec-CH-UA-Platform</code> token",
+            "description": "`Sec-CH-UA-Platform` token",
+            "tags": [
+              "web-features:ua-client-hints"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -331,7 +358,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -342,7 +370,10 @@
         },
         "Sec-CH-UA-Platform-Version": {
           "__compat": {
-            "description": "<code>Sec-CH-UA-Platform-Version</code> token",
+            "description": "`Sec-CH-UA-Platform-Version` token",
+            "tags": [
+              "web-features:ua-client-hints"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -364,7 +395,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -375,7 +407,7 @@
         },
         "Viewport-Width": {
           "__compat": {
-            "description": "<code>Viewport-Width</code> token",
+            "description": "`Viewport-Width` token",
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -399,7 +431,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -410,7 +443,7 @@
         },
         "Width": {
           "__compat": {
-            "description": "<code>Width</code> token",
+            "description": "`Width` token",
             "support": {
               "chrome": {
                 "version_added": "46"
@@ -434,7 +467,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Accept-Encoding.json b/http/headers/Accept-Encoding.json
index 73b09ef07caad4..77df8d1d937b01 100644
--- a/http/headers/Accept-Encoding.json
+++ b/http/headers/Accept-Encoding.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Accept-Encoding",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.accept-encoding",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Accept-Language.json b/http/headers/Accept-Language.json
index a795e51296ebb1..893a352fbe5287 100644
--- a/http/headers/Accept-Language.json
+++ b/http/headers/Accept-Language.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Accept-Language",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.accept-language",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Accept-Ranges.json b/http/headers/Accept-Ranges.json
index e480d9d46a3131..d7b4a3fe2ecb10 100644
--- a/http/headers/Accept-Ranges.json
+++ b/http/headers/Accept-Ranges.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Accept-Ranges",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.accept-ranges",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Accept.json b/http/headers/Accept.json
index 9bfe2e70bee4fa..991c15ed297d25 100644
--- a/http/headers/Accept.json
+++ b/http/headers/Accept.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Accept",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.accept",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "In Firefox 66, the default <code>Accept</code> header value changed to <code>*/*</code>."
+              "notes": "In Firefox 66, the default `Accept` header value changed to `*/*`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -29,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Access-Control-Allow-Credentials.json b/http/headers/Access-Control-Allow-Credentials.json
index 349568eb87dc23..535952d0c5d193 100644
--- a/http/headers/Access-Control-Allow-Credentials.json
+++ b/http/headers/Access-Control-Allow-Credentials.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Access-Control-Allow-Credentials",
           "spec_url": "https://fetch.spec.whatwg.org/#http-access-control-allow-credentials",
+          "tags": [
+            "web-features:cors"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Access-Control-Allow-Headers.json b/http/headers/Access-Control-Allow-Headers.json
index 93f3c8135920de..4f175b92400bef 100644
--- a/http/headers/Access-Control-Allow-Headers.json
+++ b/http/headers/Access-Control-Allow-Headers.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Access-Control-Allow-Headers",
           "spec_url": "https://fetch.spec.whatwg.org/#http-access-control-allow-headers",
+          "tags": [
+            "web-features:cors"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,7 +48,10 @@
         },
         "authorization_not_covered_by_wildcard": {
           "__compat": {
-            "description": "<code>Authorization</code> header is not covered by wildcard",
+            "description": "`Authorization` header is not covered by wildcard",
+            "tags": [
+              "web-features:cors"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -73,7 +80,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -84,7 +92,10 @@
         },
         "wildcard": {
           "__compat": {
-            "description": "Wildcard (<code>*</code>)",
+            "description": "Wildcard (`*`)",
+            "tags": [
+              "web-features:cors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -108,7 +119,8 @@
               "samsunginternet_android": {
                 "version_added": "8.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Access-Control-Allow-Methods.json b/http/headers/Access-Control-Allow-Methods.json
index 32dc66dd8febbe..7ac41cd2aa6bc1 100644
--- a/http/headers/Access-Control-Allow-Methods.json
+++ b/http/headers/Access-Control-Allow-Methods.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Access-Control-Allow-Methods",
           "spec_url": "https://fetch.spec.whatwg.org/#http-access-control-allow-methods",
+          "tags": [
+            "web-features:cors"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,7 +48,10 @@
         },
         "wildcard": {
           "__compat": {
-            "description": "Wildcard (<code>*</code>)",
+            "description": "Wildcard (`*`)",
+            "tags": [
+              "web-features:cors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -68,7 +75,8 @@
               "samsunginternet_android": {
                 "version_added": "8.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Access-Control-Allow-Origin.json b/http/headers/Access-Control-Allow-Origin.json
index 454a844f78d398..ccafbef1430226 100644
--- a/http/headers/Access-Control-Allow-Origin.json
+++ b/http/headers/Access-Control-Allow-Origin.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Access-Control-Allow-Origin",
           "spec_url": "https://fetch.spec.whatwg.org/#http-access-control-allow-origin",
+          "tags": [
+            "web-features:cors"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Access-Control-Expose-Headers.json b/http/headers/Access-Control-Expose-Headers.json
index 5b73353a5b5b95..72e58e920cd69f 100644
--- a/http/headers/Access-Control-Expose-Headers.json
+++ b/http/headers/Access-Control-Expose-Headers.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Access-Control-Expose-Headers",
           "spec_url": "https://fetch.spec.whatwg.org/#http-access-control-expose-headers",
+          "tags": [
+            "web-features:cors"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,7 +48,10 @@
         },
         "wildcard": {
           "__compat": {
-            "description": "Wildcard (<code>*</code>)",
+            "description": "Wildcard (`*`)",
+            "tags": [
+              "web-features:cors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "65"
@@ -66,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Access-Control-Max-Age.json b/http/headers/Access-Control-Max-Age.json
index c4bbeb3f7ee56f..b76fec6edf0293 100644
--- a/http/headers/Access-Control-Max-Age.json
+++ b/http/headers/Access-Control-Max-Age.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Access-Control-Max-Age",
           "spec_url": "https://fetch.spec.whatwg.org/#http-access-control-max-age",
+          "tags": [
+            "web-features:cors"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Access-Control-Request-Headers.json b/http/headers/Access-Control-Request-Headers.json
index 5fc114d9dd5716..96165632b05514 100644
--- a/http/headers/Access-Control-Request-Headers.json
+++ b/http/headers/Access-Control-Request-Headers.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Access-Control-Request-Headers",
           "spec_url": "https://fetch.spec.whatwg.org/#http-access-control-request-headers",
+          "tags": [
+            "web-features:cors"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Access-Control-Request-Method.json b/http/headers/Access-Control-Request-Method.json
index 3994af9dd49c80..790f3dd09302b6 100644
--- a/http/headers/Access-Control-Request-Method.json
+++ b/http/headers/Access-Control-Request-Method.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Access-Control-Request-Method",
           "spec_url": "https://fetch.spec.whatwg.org/#http-access-control-request-method",
+          "tags": [
+            "web-features:cors"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "2"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Age.json b/http/headers/Age.json
index 05efc615ceff11..bd63fd1c6cbbcf 100644
--- a/http/headers/Age.json
+++ b/http/headers/Age.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Age",
           "spec_url": "https://httpwg.org/specs/rfc9111.html#field.age",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Alt-Svc.json b/http/headers/Alt-Svc.json
index 6bb99e3f3db57d..72a6c268e7a2af 100644
--- a/http/headers/Alt-Svc.json
+++ b/http/headers/Alt-Svc.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Attribution-Reporting-Eligible.json b/http/headers/Attribution-Reporting-Eligible.json
index 4831c8d4118421..015146958a9a73 100644
--- a/http/headers/Attribution-Reporting-Eligible.json
+++ b/http/headers/Attribution-Reporting-Eligible.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Attribution-Reporting-Register-Source.json b/http/headers/Attribution-Reporting-Register-Source.json
index 0ef4b79c659093..9c95a4a3b01d8a 100644
--- a/http/headers/Attribution-Reporting-Register-Source.json
+++ b/http/headers/Attribution-Reporting-Register-Source.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Attribution-Reporting-Register-Trigger.json b/http/headers/Attribution-Reporting-Register-Trigger.json
index 905a89bef27171..b2fc82bd6f488a 100644
--- a/http/headers/Attribution-Reporting-Register-Trigger.json
+++ b/http/headers/Attribution-Reporting-Register-Trigger.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Attribution-Reporting-Support.json b/http/headers/Attribution-Reporting-Support.json
index 98c91c3bf8722b..fb26722e753c75 100644
--- a/http/headers/Attribution-Reporting-Support.json
+++ b/http/headers/Attribution-Reporting-Support.json
@@ -25,7 +25,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Authorization.json b/http/headers/Authorization.json
index 7c8261e66bcefa..4d67f48e9b342d 100644
--- a/http/headers/Authorization.json
+++ b/http/headers/Authorization.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Authorization",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.authorization",
+          "tags": [
+            "web-features:http-authentication"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,8 +42,11 @@
         },
         "Basic": {
           "__compat": {
-            "description": "<code>Basic</code> authentication",
+            "description": "`Basic` authentication",
             "spec_url": "https://httpwg.org/specs/rfc7617.html#basic.authentication.scheme",
+            "tags": [
+              "web-features:http-authentication"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -65,7 +72,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,8 +84,11 @@
         },
         "Digest": {
           "__compat": {
-            "description": "<code>Digest</code> authentication",
+            "description": "`Digest` authentication",
             "spec_url": "https://httpwg.org/specs/rfc7616.html#digest.access.authentication.scheme",
+            "tags": [
+              "web-features:http-authentication"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -99,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,6 +122,9 @@
           "SHA-256": {
             "__compat": {
               "description": "SHA2-256 digest authentication",
+              "tags": [
+                "web-features:http-authentication"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "117"
@@ -131,7 +146,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -143,6 +159,9 @@
           "md5": {
             "__compat": {
               "description": "MD5 digest authentication",
+              "tags": [
+                "web-features:http-authentication"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "1"
@@ -164,7 +183,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -176,8 +196,11 @@
         },
         "Negotiate": {
           "__compat": {
-            "description": "<code>Negotiate</code> (Kerberos) authentication",
+            "description": "`Negotiate` (Kerberos) authentication",
             "spec_url": "https://www.rfc-editor.org/rfc/rfc4120#section-1",
+            "tags": [
+              "web-features:http-authentication"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -199,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -210,7 +234,10 @@
         },
         "NTLM": {
           "__compat": {
-            "description": "<code>NTLM</code> authentication",
+            "description": "`NTLM` authentication",
+            "tags": [
+              "web-features:http-authentication"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -232,7 +259,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -243,8 +271,11 @@
         },
         "authorization_removed_cross_origin": {
           "__compat": {
-            "description": "<code>Authorization</code> header removed from cross-origin redirects",
+            "description": "`Authorization` header removed from cross-origin redirects",
             "spec_url": "https://fetch.spec.whatwg.org/#http-redirect-fetch",
+            "tags": [
+              "web-features:http-authentication"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -266,7 +297,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Cache-Control.json b/http/headers/Cache-Control.json
index b23a1505b16481..ce3f4c9e0ce480 100644
--- a/http/headers/Cache-Control.json
+++ b/http/headers/Cache-Control.json
@@ -8,6 +8,9 @@
             "https://httpwg.org/specs/rfc9111.html#field.cache-control",
             "https://httpwg.org/specs/rfc8246.html#the-immutable-cache-control-extension"
           ],
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,7 +48,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/611416"
+                "impl_url": "https://crbug.com/41253661"
               },
               "chrome_android": "mirror",
               "edge": {
@@ -68,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,7 +87,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/348877"
+                "impl_url": "https://crbug.com/40354106"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -102,7 +107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -138,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Clear-Site-Data.json b/http/headers/Clear-Site-Data.json
index 4ef72dabf913f7..f20080517f80be 100644
--- a/http/headers/Clear-Site-Data.json
+++ b/http/headers/Clear-Site-Data.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Clear-Site-Data",
           "spec_url": "https://w3c.github.io/webappsec-clear-site-data/#header",
+          "tags": [
+            "web-features:clear-site-data"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
         "secure_context_required": {
           "__compat": {
             "description": "Secure context required",
+            "tags": [
+              "web-features:clear-site-data"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -62,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -73,9 +81,12 @@
         },
         "cache": {
           "__compat": {
-            "description": "<code>&quot;cache&quot;</code>",
+            "description": "`&quot;cache&quot;`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Clear-Site-Data#cache",
             "spec_url": "https://w3c.github.io/webappsec-clear-site-data/#grammardef-cache",
+            "tags": [
+              "web-features:clear-site-data"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -86,7 +97,8 @@
               },
               "firefox": {
                 "version_added": "63",
-                "version_removed": "94"
+                "version_removed": "94",
+                "impl_url": "https://bugzil.la/1838506"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -96,14 +108,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "17"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -111,9 +124,12 @@
         },
         "clientHints": {
           "__compat": {
-            "description": "<code>&quot;clientHints&quot;</code>",
+            "description": "`&quot;clientHints&quot;`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Clear-Site-Data#clientHints",
             "spec_url": "https://w3c.github.io/webappsec-clear-site-data/#grammardef-clienthints",
+            "tags": [
+              "web-features:clear-site-data"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117"
@@ -135,7 +151,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -146,9 +163,12 @@
         },
         "cookies": {
           "__compat": {
-            "description": "<code>&quot;cookies&quot;</code>",
+            "description": "`&quot;cookies&quot;`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Clear-Site-Data#cookies",
             "spec_url": "https://w3c.github.io/webappsec-clear-site-data/#grammardef-cookies",
+            "tags": [
+              "web-features:clear-site-data"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -168,11 +188,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "17"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -183,19 +204,23 @@
         },
         "executionContexts": {
           "__compat": {
-            "description": "<code>&quot;executionContexts&quot;</code>",
+            "description": "`&quot;executionContexts&quot;`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Clear-Site-Data#executionContexts",
             "spec_url": "https://w3c.github.io/webappsec-clear-site-data/#grammardef-executioncontexts",
+            "tags": [
+              "web-features:clear-site-data"
+            ],
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/898503"
+                "impl_url": "https://crbug.com/40599527"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
                 "version_added": "63",
-                "version_removed": "68"
+                "version_removed": "68",
+                "impl_url": "https://bugzil.la/1635189"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -209,7 +234,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -220,9 +246,12 @@
         },
         "storage": {
           "__compat": {
-            "description": "<code>&quot;storage&quot;</code>",
+            "description": "`&quot;storage&quot;`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Clear-Site-Data#storage",
             "spec_url": "https://w3c.github.io/webappsec-clear-site-data/#grammardef-storage",
+            "tags": [
+              "web-features:clear-site-data"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -242,11 +271,51 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
+                "version_added": "17"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "wildcard": {
+          "__compat": {
+            "description": "`&quot;*&quot;` (wildcard)",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Clear-Site-Data#sect4",
+            "spec_url": "https://w3c.github.io/webappsec-clear-site-data/#grammardef-",
+            "tags": [
+              "web-features:clear-site-data"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "117"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "63"
+              },
+              "firefox_android": "mirror",
+              "ie": {
                 "version_added": false
               },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "17"
+              },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Connection.json b/http/headers/Connection.json
index 5f370218067860..65397d076c6b30 100644
--- a/http/headers/Connection.json
+++ b/http/headers/Connection.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Connection",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.connection",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Content-DPR.json b/http/headers/Content-DPR.json
index 2646733d333138..30b761172eeb6d 100644
--- a/http/headers/Content-DPR.json
+++ b/http/headers/Content-DPR.json
@@ -3,7 +3,7 @@
     "headers": {
       "Content-DPR": {
         "__compat": {
-          "description": "<code>Content-DPR</code> request header",
+          "description": "`Content-DPR` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-DPR",
           "support": {
             "chrome": {
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Content-Disposition.json b/http/headers/Content-Disposition.json
index 05b3fae70f23b4..86fe614de9d6ff 100644
--- a/http/headers/Content-Disposition.json
+++ b/http/headers/Content-Disposition.json
@@ -8,6 +8,9 @@
             "https://httpwg.org/specs/rfc6266.html#header.field.definition",
             "https://www.rfc-editor.org/rfc/rfc7578#section-4.2"
           ],
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -18,7 +21,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "From version 82, if an <code>&lt;a&gt;</code> element's <code>download</code> attribute is set (for a same-origin URL) then the <code>inline</code> directive is ignored. Earlier versions did not match the specification and respected the header directive over the attribute. See <a href='https://bugzil.la/1658877'>bug 1658877</a>."
+              "notes": "From version 82, if an `&lt;a&gt;` element's `download` attribute is set (for a same-origin URL) then the `inline` directive is ignored. Earlier versions did not match the specification and respected the header directive over the attribute. See [bug 1658877](https://bugzil.la/1658877)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Content-Encoding.json b/http/headers/Content-Encoding.json
index 4c15d7a6145ae5..bfde18ce899140 100644
--- a/http/headers/Content-Encoding.json
+++ b/http/headers/Content-Encoding.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Encoding",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.content-encoding",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
         "br": {
           "__compat": {
             "spec_url": "https://www.rfc-editor.org/rfc/rfc7932#section-13",
+            "tags": [
+              "web-features:brotli"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -71,7 +78,8 @@
                 "version_added": "11"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -84,6 +92,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Encoding#zstd",
             "spec_url": "https://www.rfc-editor.org/rfc/rfc8878#name-content-encoding",
+            "tags": [
+              "web-features:zstd"
+            ],
             "support": {
               "chrome": {
                 "version_added": "123"
@@ -105,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Content-Language.json b/http/headers/Content-Language.json
index 2967e16d8d1098..041443855d872a 100644
--- a/http/headers/Content-Language.json
+++ b/http/headers/Content-Language.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Language",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.content-language",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Content-Length.json b/http/headers/Content-Length.json
index ab24064dcd6a4e..6e60fdc302b806 100644
--- a/http/headers/Content-Length.json
+++ b/http/headers/Content-Length.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Length",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.content-length",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -62,7 +66,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Content-Location.json b/http/headers/Content-Location.json
index 0ecc4033c6922c..56a3e54ed9309d 100644
--- a/http/headers/Content-Location.json
+++ b/http/headers/Content-Location.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Location",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.content-location",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Content-Range.json b/http/headers/Content-Range.json
index add0dab3efc5c9..141d8d6e4551d4 100644
--- a/http/headers/Content-Range.json
+++ b/http/headers/Content-Range.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Range",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.content-range",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Content-Security-Policy-Report-Only.json b/http/headers/Content-Security-Policy-Report-Only.json
index e5b0a565b99dda..1acea0aca7abaa 100644
--- a/http/headers/Content-Security-Policy-Report-Only.json
+++ b/http/headers/Content-Security-Policy-Report-Only.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only",
           "spec_url": "https://w3c.github.io/webappsec-csp/#cspro-header",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": {
               "version_added": "25"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Content-Security-Policy.json b/http/headers/Content-Security-Policy.json
index 4b5527baad0eae..96cb2a9020c016 100644
--- a/http/headers/Content-Security-Policy.json
+++ b/http/headers/Content-Security-Policy.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy",
           "spec_url": "https://w3c.github.io/webappsec-csp/#csp-header",
+          "tags": [
+            "web-features:csp"
+          ],
           "support": {
             "chrome": [
               {
@@ -52,7 +55,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -63,6 +67,9 @@
         "worker_support": {
           "__compat": {
             "description": "Worker support",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56"
@@ -86,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -99,6 +107,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/base-uri",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-base-uri",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "40"
@@ -122,7 +133,8 @@
                 "version_added": "9.3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -137,7 +149,7 @@
             "support": {
               "chrome": {
                 "version_added": "44",
-                "notes": "Will be removed, see <a href='https://crbug.com/40260100'>bug 40260100</a>."
+                "notes": "Will be removed, see [bug 40260100](https://crbug.com/40260100)."
               },
               "chrome_android": "mirror",
               "edge": {
@@ -159,7 +171,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -172,6 +185,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/child-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-child-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "40"
@@ -197,7 +213,8 @@
                 "version_added": "9.3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -210,6 +227,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/connect-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-connect-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -242,7 +262,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -255,6 +276,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/default-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-default-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -278,7 +302,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -291,9 +316,12 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/fenced-frame-src",
             "spec_url": "https://wicg.github.io/fenced-frame/#new-csp-directive",
+            "tags": [
+              "web-features:fencedframe"
+            ],
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "115"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -312,7 +340,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -325,6 +354,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/font-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-font-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -348,7 +380,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -361,6 +394,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/form-action",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-form-action",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "40"
@@ -386,7 +422,8 @@
                 "version_added": "9.3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -418,7 +455,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -432,6 +470,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-frame-ancestors",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "40"
@@ -447,19 +488,10 @@
                 {
                   "version_added": "33",
                   "partial_implementation": true,
-                  "notes": "Before Firefox 58, <code>frame-ancestors</code> is ignored in <code>Content-Security-Policy-Report-Only</code>."
-                }
-              ],
-              "firefox_android": [
-                {
-                  "version_added": "58"
-                },
-                {
-                  "version_added": "33",
-                  "partial_implementation": true,
-                  "notes": "Before Firefox for Android 58, <code>frame-ancestors</code> is ignored in <code>Content-Security-Policy-Report-Only</code>."
+                  "notes": "Before Firefox 58, `frame-ancestors` is ignored in `Content-Security-Policy-Report-Only`."
                 }
               ],
+              "firefox_android": "mirror",
               "ie": {
                 "version_added": false
               },
@@ -475,7 +507,8 @@
                 "version_added": "9.3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -488,6 +521,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/frame-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-frame-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -511,7 +547,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -524,6 +561,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/img-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-img-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -547,7 +587,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -560,6 +601,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/manifest-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-manifest-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "40"
@@ -581,7 +625,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -594,6 +639,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/media-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-media-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -617,7 +665,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -628,7 +677,10 @@
         },
         "meta-element-support": {
           "__compat": {
-            "description": "<code>&lt;meta&gt;</code> element support",
+            "description": "`&lt;meta&gt;` element support",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -652,7 +704,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -665,6 +718,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/object-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-object-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -688,7 +744,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -703,7 +760,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/801561"
+                "impl_url": "https://crbug.com/40090173"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -724,7 +781,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -735,8 +793,11 @@
         },
         "report-sample": {
           "__compat": {
-            "description": "<code>report-sample</code> source value",
-            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/Sources#report-sample",
+            "description": "`report-sample` source value",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy#fetch_directive_syntax",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "59"
@@ -760,7 +821,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -773,6 +835,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/report-to",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-report-to",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "70"
@@ -801,7 +866,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -837,7 +903,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -860,7 +927,8 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": false,
+                "impl_url": "https://bugzil.la/1508286"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -870,11 +938,13 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": false,
+                "impl_url": "https://webkit.org/b/266630"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -887,6 +957,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/sandbox",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-sandbox",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -910,7 +983,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -923,6 +997,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/script-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-script-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -946,7 +1023,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -958,6 +1036,9 @@
             "__compat": {
               "description": "External scripts with hash",
               "spec_url": "https://w3c.github.io/webappsec-csp/#external-hash",
+              "tags": [
+                "web-features:csp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "59"
@@ -981,7 +1062,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -992,8 +1074,11 @@
           },
           "inline-speculation-rules": {
             "__compat": {
-              "description": "<code>inline-speculation-rules</code> source expression",
+              "description": "`inline-speculation-rules` source expression",
               "spec_url": "https://wicg.github.io/nav-speculation/speculation-rules.html#content-security-policy",
+              "tags": [
+                "web-features:speculation-rules"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "110"
@@ -1015,7 +1100,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1027,6 +1113,9 @@
           "wasm-unsafe-eval": {
             "__compat": {
               "description": "Source expression allowing WebAssembly execution",
+              "tags": [
+                "web-features:csp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "97"
@@ -1048,7 +1137,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1062,6 +1152,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-script-src-attr",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "75"
@@ -1083,7 +1176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1096,6 +1190,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-script-src-elem",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "75"
@@ -1117,7 +1214,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1128,8 +1226,11 @@
         },
         "strict-dynamic": {
           "__compat": {
-            "description": "<code>strict-dynamic</code> source value",
-            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/Sources#strict-dynamic",
+            "description": "`strict-dynamic` source value",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy#fetch_directive_syntax",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "52"
@@ -1153,7 +1254,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1166,6 +1268,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/style-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-style-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "25"
@@ -1189,7 +1294,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1202,6 +1308,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-attr",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-style-src-attr",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "75"
@@ -1223,7 +1332,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1236,6 +1346,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-elem",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-style-src-elem",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "75"
@@ -1257,7 +1370,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1280,7 +1394,8 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": false,
+                "impl_url": "https://bugzil.la/1508286"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1292,11 +1407,13 @@
                 "version_added": false
               },
               "safari": {
-                "version_added": false
+                "version_added": false,
+                "impl_url": "https://webkit.org/b/266630"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1307,8 +1424,11 @@
         },
         "unsafe-hashes": {
           "__compat": {
-            "description": "<code>unsafe-hashes</code> source value",
-            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/Sources#unsafe-hashes",
+            "description": "`unsafe-hashes` source value",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy#fetch_directive_syntax",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -1330,7 +1450,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1343,6 +1464,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/upgrade-insecure-requests",
             "spec_url": "https://w3c.github.io/webappsec-upgrade-insecure-requests/#delivery",
+            "tags": [
+              "web-features:upgrade-insecure-requests"
+            ],
             "support": {
               "chrome": {
                 "version_added": "43"
@@ -1366,7 +1490,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1379,10 +1504,13 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/worker-src",
             "spec_url": "https://w3c.github.io/webappsec-csp/#directive-worker-src",
+            "tags": [
+              "web-features:csp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "59",
-                "notes": "Chrome 59 and higher skips the deprecated <code>child-src</code> directive."
+                "notes": "Chrome 59 and higher skips the deprecated `child-src` directive."
               },
               "chrome_android": "mirror",
               "edge": {
@@ -1405,7 +1533,8 @@
               "samsunginternet_android": {
                 "version_added": "7.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Content-Type.json b/http/headers/Content-Type.json
index c5402aeb8458b0..93614397686286 100644
--- a/http/headers/Content-Type.json
+++ b/http/headers/Content-Type.json
@@ -8,6 +8,9 @@
             "https://httpwg.org/specs/rfc9110.html#status.206",
             "https://httpwg.org/specs/rfc9110.html#field.content-type"
           ],
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -31,7 +34,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Cookie.json b/http/headers/Cookie.json
index 50da10bbdaf340..5d9ec90b813b12 100644
--- a/http/headers/Cookie.json
+++ b/http/headers/Cookie.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Cookie",
           "spec_url": "https://httpwg.org/specs/rfc6265.html#cookie",
+          "tags": [
+            "web-features:cookies"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Critical-CH.json b/http/headers/Critical-CH.json
index 56060aead229b6..11ba697d3af440 100644
--- a/http/headers/Critical-CH.json
+++ b/http/headers/Critical-CH.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Cross-Origin-Embedder-Policy.json b/http/headers/Cross-Origin-Embedder-Policy.json
index f5be7ad7c4dd21..76b568aeaa936d 100644
--- a/http/headers/Cross-Origin-Embedder-Policy.json
+++ b/http/headers/Cross-Origin-Embedder-Policy.json
@@ -28,7 +28,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "86"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -64,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Cross-Origin-Opener-Policy.json b/http/headers/Cross-Origin-Opener-Policy.json
index 6c54751f9db830..a5db5817d4a601 100644
--- a/http/headers/Cross-Origin-Opener-Policy.json
+++ b/http/headers/Cross-Origin-Opener-Policy.json
@@ -19,12 +19,8 @@
               "version_added": false
             },
             "oculus": "mirror",
-            "opera": {
-              "version_added": false
-            },
-            "opera_android": {
-              "version_added": false
-            },
+            "opera": "mirror",
+            "opera_android": "mirror",
             "safari": {
               "version_added": "15.2"
             },
@@ -32,13 +28,51 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "noopener-allow-popups": {
+          "__compat": {
+            "description": "noopener-allow-popups support",
+            "spec_url": "https://html.spec.whatwg.org/multipage/browsers.html#coop-noopener-allow-popups",
+            "support": {
+              "chrome": {
+                "version_added": "131"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": {
+                "version_added": false
+              },
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/http/headers/Cross-Origin-Resource-Policy.json b/http/headers/Cross-Origin-Resource-Policy.json
index 2fbe7979dee6b2..7c7c58b816ae49 100644
--- a/http/headers/Cross-Origin-Resource-Policy.json
+++ b/http/headers/Cross-Origin-Resource-Policy.json
@@ -9,8 +9,8 @@
             "chrome": {
               "version_added": "73",
               "notes": [
-                "Until version 75, downloads for files with this header would fail in Chrome. See <a href='https://crbug.com/952834'>bug 952834</a>.",
-                "From version 80 to 85, linearized PDFs served inline with this header fail to render properly. See <a href='https://crbug.com/1074261'>bug 1074261</a>. From version 86, partial PDF loading is disabled."
+                "Until version 75, downloads for files with this header would fail in Chrome. See [bug 41452948](https://crbug.com/41452948).",
+                "From version 80 to 85, linearized PDFs served inline with this header fail to render properly. See [bug 40127935](https://crbug.com/40127935). From version 86, partial PDF loading is disabled."
               ]
             },
             "chrome_android": "mirror",
@@ -34,7 +34,8 @@
             "samsunginternet_android": {
               "version_added": "11.0"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/DNT.json b/http/headers/DNT.json
index 7eff04fcccdec7..0041e649786c15 100644
--- a/http/headers/DNT.json
+++ b/http/headers/DNT.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/DPR.json b/http/headers/DPR.json
index e6754bd14d13f4..0ef1e6d4c055d0 100644
--- a/http/headers/DPR.json
+++ b/http/headers/DPR.json
@@ -3,7 +3,7 @@
     "headers": {
       "DPR": {
         "__compat": {
-          "description": "<code>DPR</code> request header",
+          "description": "`DPR` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/DPR",
           "support": {
             "chrome": {
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Date.json b/http/headers/Date.json
index 72e39befaf79b4..d329bbf72a3d20 100644
--- a/http/headers/Date.json
+++ b/http/headers/Date.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Date",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.date",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Device-Memory.json b/http/headers/Device-Memory.json
index 14e313bedd67c9..1f1e79488ee264 100644
--- a/http/headers/Device-Memory.json
+++ b/http/headers/Device-Memory.json
@@ -3,7 +3,7 @@
     "headers": {
       "Device-Memory": {
         "__compat": {
-          "description": "<code>Device-Memory</code> request header",
+          "description": "`Device-Memory` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Device-Memory",
           "spec_url": "https://www.w3.org/TR/device-memory/#iana-device-memory",
           "support": {
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Downlink.json b/http/headers/Downlink.json
index 3635ef857b14da..fd6aab03b29dc6 100644
--- a/http/headers/Downlink.json
+++ b/http/headers/Downlink.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Downlink",
           "spec_url": "https://wicg.github.io/netinfo/#downlink-request-header-field",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "67",
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/ECT.json b/http/headers/ECT.json
index 25ffe5d6786a40..b3da5bec899123 100644
--- a/http/headers/ECT.json
+++ b/http/headers/ECT.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/ECT",
           "spec_url": "https://wicg.github.io/netinfo/#ect-request-header-field",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "67"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/ETag.json b/http/headers/ETag.json
index 15d01214d02e64..d0c15feaa19d0b 100644
--- a/http/headers/ETag.json
+++ b/http/headers/ETag.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/ETag",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.etag",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Early-Data.json b/http/headers/Early-Data.json
index 72579cdb5e5c90..b5f68546849a76 100644
--- a/http/headers/Early-Data.json
+++ b/http/headers/Early-Data.json
@@ -27,7 +27,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Expect-CT.json b/http/headers/Expect-CT.json
index bc06c027de755e..487eb4d577a648 100644
--- a/http/headers/Expect-CT.json
+++ b/http/headers/Expect-CT.json
@@ -8,7 +8,7 @@
           "support": {
             "chrome": {
               "version_added": "61",
-              "notes": "Before later builds of Chrome 64, invalid Expect-CT reports would be sent. Newer versions do not send reports after 10 weeks from the build date. See <a href='https://crbug.com/786563'>bug 786563</a>."
+              "notes": "Before later builds of Chrome 64, invalid Expect-CT reports would be sent. Newer versions do not send reports after 10 weeks from the build date. See [bug 41356303](https://crbug.com/41356303)."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -34,12 +34,13 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
-            "deprecated": false
+            "deprecated": true
           }
         }
       }
diff --git a/http/headers/Expires.json b/http/headers/Expires.json
index a40e8ed7ca0f38..1af27546546216 100644
--- a/http/headers/Expires.json
+++ b/http/headers/Expires.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Expires",
           "spec_url": "https://httpwg.org/specs/rfc9111.html#field.expires",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/From.json b/http/headers/From.json
index 1dfcfedeaea0c9..88d2d4fb200ec3 100644
--- a/http/headers/From.json
+++ b/http/headers/From.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/From",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.from",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Host.json b/http/headers/Host.json
index 983511006a9fc9..5e48302ba4eeca 100644
--- a/http/headers/Host.json
+++ b/http/headers/Host.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Host",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.host",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/If-Match.json b/http/headers/If-Match.json
index 27fa6bf56cb654..0400d94a444533 100644
--- a/http/headers/If-Match.json
+++ b/http/headers/If-Match.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/If-Match",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.if-match",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/If-Modified-Since.json b/http/headers/If-Modified-Since.json
index d9a791b9fb7697..50a315abf634b4 100644
--- a/http/headers/If-Modified-Since.json
+++ b/http/headers/If-Modified-Since.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/If-Modified-Since",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.if-modified-since",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/If-None-Match.json b/http/headers/If-None-Match.json
index ea9807d03212f2..e5121e56b42e32 100644
--- a/http/headers/If-None-Match.json
+++ b/http/headers/If-None-Match.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/If-None-Match",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.if-none-match",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/If-Range.json b/http/headers/If-Range.json
index c7045210897f29..b876b11be10104 100644
--- a/http/headers/If-Range.json
+++ b/http/headers/If-Range.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/If-Range",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.if-range",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/If-Unmodified-Since.json b/http/headers/If-Unmodified-Since.json
index 057343a495c6c7..328969d3b016e8 100644
--- a/http/headers/If-Unmodified-Since.json
+++ b/http/headers/If-Unmodified-Since.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/If-Unmodified-Since",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.if-unmodified-since",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Keep-Alive.json b/http/headers/Keep-Alive.json
index 9bc79b58a90e91..63a65f93fd4e75 100644
--- a/http/headers/Keep-Alive.json
+++ b/http/headers/Keep-Alive.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Keep-Alive",
           "spec_url": "https://httpwg.org/specs/rfc9112.html#compatibility.with.http.1.0.persistent.connections",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Last-Modified.json b/http/headers/Last-Modified.json
index 498fe8a4b38b0d..9daf363597de43 100644
--- a/http/headers/Last-Modified.json
+++ b/http/headers/Last-Modified.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Last-Modified",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.last-modified",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Link.json b/http/headers/Link.json
index ef20455f0273bb..36333152a1c57f 100644
--- a/http/headers/Link.json
+++ b/http/headers/Link.json
@@ -26,13 +26,127 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "blocking": {
+          "__compat": {
+            "spec_url": "https://html.spec.whatwg.org/multipage/semantics.html#attr-link-blocking",
+            "tags": [
+              "web-features:blocking-render"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "105"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false,
+                "impl_url": "https://bugzil.la/1751383"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false,
+                "impl_url": "https://webkit.org/b/267232"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "expect": {
+          "__compat": {
+            "description": "rel=expect",
+            "spec_url": "https://html.spec.whatwg.org/multipage/links.html#link-type-expect",
+            "support": {
+              "chrome": {
+                "version_added": "124",
+                "impl_url": "https://crbug.com/40948547"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "fetchpriority": {
+          "__compat": {
+            "spec_url": "https://html.spec.whatwg.org/multipage/semantics.html#attr-link-fetchpriority",
+            "tags": [
+              "web-features:fetch-priority"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": "103"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "132",
+                "impl_url": "https://bugzil.la/1797715"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "17.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/http/headers/Location.json b/http/headers/Location.json
index d717951f1477e1..2f434edacd9773 100644
--- a/http/headers/Location.json
+++ b/http/headers/Location.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Location",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.location",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/NEL.json b/http/headers/NEL.json
index 79b1fb596eb28f..87ae5521b53598 100644
--- a/http/headers/NEL.json
+++ b/http/headers/NEL.json
@@ -28,7 +28,8 @@
             "samsunginternet_android": {
               "version_added": "10.2"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/No-Vary-Search.json b/http/headers/No-Vary-Search.json
index 8a0c5a7f166735..b94f015c3da6d9 100644
--- a/http/headers/No-Vary-Search.json
+++ b/http/headers/No-Vary-Search.json
@@ -27,7 +27,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Observe-Browsing-Topics.json b/http/headers/Observe-Browsing-Topics.json
index 1e30cadfe24e90..8202f23526d070 100644
--- a/http/headers/Observe-Browsing-Topics.json
+++ b/http/headers/Observe-Browsing-Topics.json
@@ -25,7 +25,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Origin-Agent-Cluster.json b/http/headers/Origin-Agent-Cluster.json
index 1b55d566706679..ed2f0c13ed25da 100644
--- a/http/headers/Origin-Agent-Cluster.json
+++ b/http/headers/Origin-Agent-Cluster.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Origin.json b/http/headers/Origin.json
index ac5679f33eb62e..1040fa52e6f369 100644
--- a/http/headers/Origin.json
+++ b/http/headers/Origin.json
@@ -8,6 +8,9 @@
             "https://www.rfc-editor.org/rfc/rfc6454#section-7",
             "https://fetch.spec.whatwg.org/#origin-header"
           ],
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Before Edge 79, this header was not sent with <code>POST</code> requests."
+              "notes": "Before Edge 79, this header was not sent with `POST` requests."
             },
             "firefox": [
               {
@@ -24,7 +27,7 @@
               {
                 "version_added": "1",
                 "partial_implementation": true,
-                "notes": "Not sent with <code>POST</code> requests, see <a href='https://bugzil.la/446344'>bug 446344</a>."
+                "notes": "Not sent with `POST` requests, see [bug 446344](https://bugzil.la/446344)."
               }
             ],
             "firefox_android": "mirror",
@@ -39,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Permissions-Policy.json b/http/headers/Permissions-Policy.json
index 348c0439ebe7c4..b4bf72e9c64181 100644
--- a/http/headers/Permissions-Policy.json
+++ b/http/headers/Permissions-Policy.json
@@ -18,10 +18,8 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "alternative_name": "Feature-Policy",
-              "version_added": "74",
-              "partial_implementation": true,
-              "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)"
+              "version_added": false,
+              "impl_url": "https://bugzil.la/1531012"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -31,17 +29,15 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "alternative_name": "Feature-Policy",
-              "version_added": "11.1",
-              "partial_implementation": true,
-              "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)"
+              "version_added": false
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": false,
+            "experimental": true,
             "standard_track": true,
             "deprecated": false
           }
@@ -54,15 +50,9 @@
               "web-features:accelerometer"
             ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "66"
-                }
-              ],
+              "chrome": {
+                "version_added": "66"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
@@ -80,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -94,29 +85,16 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/ambient-light-sensor",
             "spec_url": "https://w3c.github.io/sensors/#permissions-policy",
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88",
-                  "flags": [
-                    {
-                      "type": "preference",
-                      "name": "#enable-experimental-web-platform-features",
-                      "value_to_set": "Enabled"
-                    }
-                  ]
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "66",
-                  "flags": [
-                    {
-                      "type": "preference",
-                      "name": "#enable-experimental-web-platform-features",
-                      "value_to_set": "Enabled"
-                    }
-                  ]
-                }
-              ],
+              "chrome": {
+                "version_added": "66",
+                "flags": [
+                  {
+                    "type": "preference",
+                    "name": "#enable-experimental-web-platform-features",
+                    "value_to_set": "Enabled"
+                  }
+                ]
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
@@ -134,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -168,7 +147,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -182,22 +162,13 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/autoplay",
             "spec_url": "https://html.spec.whatwg.org/multipage/infrastructure.html#autoplay-feature",
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "64"
-                }
-              ],
+              "chrome": {
+                "version_added": "64"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: autoplay",
-                "version_added": "74",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)"
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -211,7 +182,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -224,6 +196,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/bluetooth",
             "spec_url": "https://webbluetoothcg.github.io/web-bluetooth/#permissions-policy",
+            "tags": [
+              "web-features:web-bluetooth"
+            ],
             "support": {
               "chrome": {
                 "version_added": "104"
@@ -245,7 +220,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -278,7 +254,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -292,22 +269,13 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/camera",
             "spec_url": "https://w3c.github.io/mediacapture-main/#permissions-policy-integration",
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "64"
-                }
-              ],
+              "chrome": {
+                "version_added": "64"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: camera",
-                "version_added": "74",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)"
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -321,15 +289,15 @@
                 "version_added": "45"
               },
               "safari": {
-                "alternative_name": "Feature-Policy: camera",
-                "version_added": "11.1"
+                "version_added": false
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": false,
+              "experimental": true,
               "standard_track": true,
               "deprecated": false
             }
@@ -365,7 +333,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -398,7 +367,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -411,6 +381,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/display-capture",
             "spec_url": "https://w3c.github.io/mediacapture-screen-share/#permissions-policy-integration",
+            "tags": [
+              "web-features:screen-capture"
+            ],
             "support": {
               "chrome": {
                 "version_added": "94"
@@ -418,14 +391,9 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: display-capture",
-                "version_added": "74",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)"
-              },
-              "firefox_android": {
                 "version_added": false
               },
+              "firefox_android": "mirror",
               "ie": {
                 "version_added": false
               },
@@ -433,19 +401,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "alternative_name": "Feature-Policy: display-capture",
-                "version_added": "13",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)"
-              },
-              "safari_ios": {
                 "version_added": false
               },
+              "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": false,
+              "experimental": true,
               "standard_track": true,
               "deprecated": false
             }
@@ -456,41 +420,21 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/document-domain",
             "spec_url": "https://html.spec.whatwg.org/multipage/infrastructure.html#policy-controlled-features",
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88",
-                  "flags": [
-                    {
-                      "type": "runtime_flag",
-                      "name": "--enable-blink-features=ExperimentalProductivityFeatures"
-                    }
-                  ]
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "64",
-                  "flags": [
-                    {
-                      "type": "runtime_flag",
-                      "name": "--enable-blink-features=ExperimentalProductivityFeatures"
-                    }
-                  ]
-                }
-              ],
+              "chrome": {
+                "version_added": "64",
+                "flags": [
+                  {
+                    "type": "runtime_flag",
+                    "name": "--enable-blink-features=ExperimentalProductivityFeatures"
+                  }
+                ]
+              },
               "chrome_android": {
                 "version_added": false
               },
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: document-domain",
-                "version_added": "74",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.security.featurePolicy.header.enabled",
-                    "value_to_set": "true"
-                  }
-                ]
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -504,7 +448,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -518,27 +463,13 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media",
             "spec_url": "https://w3c.github.io/encrypted-media/#permissions-policy-integration",
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "64"
-                }
-              ],
+              "chrome": {
+                "version_added": "64"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: encrypted-media",
-                "version_added": "74",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.security.featurePolicy.header.enabled",
-                    "value_to_set": "true"
-                  }
-                ]
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -556,7 +487,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -569,63 +501,14 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen",
             "spec_url": "https://fullscreen.spec.whatwg.org/#permissions-policy-integration",
-            "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "62"
-                }
-              ],
-              "chrome_android": "mirror",
-              "edge": "mirror",
-              "firefox": {
-                "alternative_name": "Feature-Policy: fullscreen",
-                "version_added": "80",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)."
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": false
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": false
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
-        },
-        "gamepad": {
-          "__compat": {
-            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/gamepad",
-            "spec_url": "https://w3c.github.io/gamepad/#permission-policy",
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "62"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: gamepad",
-                "version_added": "91",
-                "partial_implementation": true,
-                "notes": [
-                  "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>).",
-                  "The default allowlist is <code>*</code> instead of <code>self</code> (as required by the specification)."
-                ]
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -639,7 +522,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -652,23 +536,17 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/geolocation",
             "spec_url": "https://w3c.github.io/geolocation/#permissions-policy",
+            "tags": [
+              "web-features:geolocation"
+            ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "64"
-                }
-              ],
+              "chrome": {
+                "version_added": "64"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: geolocation",
-                "version_added": "74",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)."
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -682,10 +560,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": false,
+              "experimental": true,
               "standard_track": true,
               "deprecated": false
             }
@@ -695,16 +574,13 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/gyroscope",
             "spec_url": "https://w3c.github.io/sensors/#permissions-policy",
+            "tags": [
+              "web-features:gyroscope"
+            ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "66"
-                }
-              ],
+              "chrome": {
+                "version_added": "66"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
@@ -722,7 +598,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -742,7 +619,10 @@
               "chrome": {
                 "version_added": "89"
               },
-              "chrome_android": "mirror",
+              "chrome_android": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/40628009"
+              },
               "edge": "mirror",
               "firefox": {
                 "version_added": false
@@ -759,7 +639,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/40163407"
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -771,7 +655,7 @@
         "identity-credentials-get": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/identity-credentials-get",
-            "spec_url": "https://fedidcg.github.io/FedCM/#permissions-policy-integration",
+            "spec_url": "https://w3c-fedid.github.io/FedCM/#permissions-policy-integration",
             "support": {
               "chrome": {
                 "version_added": "110"
@@ -795,7 +679,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -832,7 +717,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -845,12 +731,16 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/local-fonts",
             "spec_url": "https://wicg.github.io/local-font-access/#permissions-policy",
+            "tags": [
+              "web-features:local-fonts"
+            ],
             "support": {
               "chrome": {
                 "version_added": "103"
               },
               "chrome_android": {
-                "version_added": false
+                "version_added": false,
+                "impl_url": "https://crbug.com/40840834"
               },
               "edge": "mirror",
               "firefox": {
@@ -870,7 +760,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -884,15 +775,9 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/magnetometer",
             "spec_url": "https://w3c.github.io/sensors/#permissions-policy",
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "66"
-                }
-              ],
+              "chrome": {
+                "version_added": "66"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
@@ -912,7 +797,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -926,22 +812,13 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/microphone",
             "spec_url": "https://w3c.github.io/mediacapture-main/#permissions-policy-integration",
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "64"
-                }
-              ],
+              "chrome": {
+                "version_added": "64"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: microphone",
-                "version_added": "74",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)"
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -955,15 +832,15 @@
                 "version_added": "45"
               },
               "safari": {
-                "alternative_name": "Feature-Policy: microphone",
-                "version_added": "11.1"
+                "version_added": false
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": false,
+              "experimental": true,
               "standard_track": true,
               "deprecated": false
             }
@@ -977,27 +854,13 @@
               "web-features:web-midi"
             ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "64"
-                }
-              ],
+              "chrome": {
+                "version_added": "64"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: midi",
-                "version_added": "74",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.security.featurePolicy.header.enabled",
-                    "value_to_set": "true"
-                  }
-                ]
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1012,7 +875,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1025,6 +889,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/otp-credentials",
             "spec_url": "https://wicg.github.io/web-otp/#sctn-permissions-policy",
+            "tags": [
+              "web-features:web-otp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "93"
@@ -1050,7 +917,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1063,28 +931,17 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/payment",
             "spec_url": "https://w3c.github.io/payment-request/#permissions-policy",
+            "tags": [
+              "web-features:payment-request"
+            ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "60"
-                }
-              ],
+              "chrome": {
+                "version_added": "60"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: payment",
-                "version_added": "74",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.security.featurePolicy.header.enabled",
-                    "value_to_set": "true"
-                  }
-                ]
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1098,7 +955,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1115,15 +973,9 @@
               "web-features:picture-in-picture"
             ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "71"
-                }
-              ],
+              "chrome": {
+                "version_added": "71"
+              },
               "chrome_android": {
                 "version_added": false
               },
@@ -1148,7 +1000,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1161,23 +1014,17 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-create",
             "spec_url": "https://w3c.github.io/webauthn/#sctn-permissions-policy",
+            "tags": [
+              "web-features:webauthn"
+            ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "84"
-                }
-              ],
+              "chrome": {
+                "version_added": "84"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: publickey-credentials-create",
-                "version_added": "123",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1870863'>bug 1870863</a>)."
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1195,7 +1042,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1208,23 +1056,17 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-get",
             "spec_url": "https://w3c.github.io/webauthn/#sctn-permissions-policy",
+            "tags": [
+              "web-features:webauthn"
+            ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "84"
-                }
-              ],
+              "chrome": {
+                "version_added": "84"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: publickey-credentials-get",
-                "version_added": "118",
-                "partial_implementation": true,
-                "notes": "Only supported through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements."
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1242,10 +1084,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": false,
+              "experimental": true,
               "standard_track": true,
               "deprecated": false
             }
@@ -1259,19 +1102,13 @@
               "web-features:screen-wake-lock"
             ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "84"
-                }
-              ],
+              "chrome": {
+                "version_added": "84"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "126"
+                "version_added": false
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1281,14 +1118,18 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "16.4"
+                "version_added": false
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/40740509"
+              },
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": false,
+              "experimental": true,
               "standard_track": true,
               "deprecated": false
             }
@@ -1298,6 +1139,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/serial",
             "spec_url": "https://wicg.github.io/serial/#permissions-policy",
+            "tags": [
+              "web-features:serial"
+            ],
             "support": {
               "chrome": {
                 "version_added": "89"
@@ -1319,47 +1163,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": true,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
-        },
-        "speaker-selection": {
-          "__compat": {
-            "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/speaker-selection",
-            "spec_url": "https://w3c.github.io/mediacapture-output/#permissions-policy-integration",
-            "support": {
-              "chrome": {
-                "version_added": false
-              },
-              "chrome_android": "mirror",
-              "edge": "mirror",
-              "firefox": {
-                "alternative_name": "Feature-Policy: speaker-selection",
-                "version_added": "116",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)"
-              },
-              "firefox_android": {
-                "version_added": false,
-                "notes": "Not available due to a limitation in Android (see <a href='https://bugzil.la/1473346'>bug 1473346</a>)."
-              },
-              "ie": {
-                "version_added": false
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": false
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1372,6 +1177,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/storage-access",
             "spec_url": "https://privacycg.github.io/storage-access/#permissions-policy-integration",
+            "tags": [
+              "web-features:storage-access"
+            ],
             "support": {
               "chrome": {
                 "version_added": "113"
@@ -1393,7 +1201,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1410,15 +1219,9 @@
               "web-features:webusb"
             ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "60"
-                }
-              ],
+              "chrome": {
+                "version_added": "60"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
@@ -1438,7 +1241,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1451,32 +1255,19 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/web-share",
             "spec_url": "https://w3c.github.io/web-share/#permissions-policy",
+            "tags": [
+              "web-features:share"
+            ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "86"
-                }
-              ],
+              "chrome": {
+                "version_added": "86"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "alternative_name": "Feature-Policy: web-share",
-                "version_added": "81",
-                "partial_implementation": true,
-                "notes": [
-                  "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>).",
-                  "Firefox recognizes the <code>web-share</code> permissions policy, but this has no effect in versions of Firefox that do not support the <a href='https://developer.mozilla.org/docs/Web/API/Navigator/share'><code>share()</code></a> method."
-                ]
-              },
-              "firefox_android": {
-                "version_added": "81",
-                "partial_implementation": true,
-                "notes": "Header not recognized but policy can be set through the <code>allow</code> attribute on <code>&lt;iframe&gt;</code> elements (see <a href='https://bugzil.la/1694922'>bug 1694922</a>)"
+                "version_added": false
               },
+              "firefox_android": "mirror",
               "ie": {
                 "version_added": false
               },
@@ -1488,10 +1279,14 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/40540400"
+              },
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": false,
+              "experimental": true,
               "standard_track": true,
               "deprecated": false
             }
@@ -1521,7 +1316,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1534,6 +1330,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/window-management",
             "spec_url": "https://w3c.github.io/window-management/#api-permission-policy-integration",
+            "tags": [
+              "web-features:window-management"
+            ],
             "support": {
               "chrome": {
                 "version_added": "100"
@@ -1557,7 +1356,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -1570,16 +1370,13 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Permissions-Policy/xr-spatial-tracking",
             "spec_url": "https://immersive-web.github.io/webxr/#permissions-policy",
+            "tags": [
+              "web-features:webxr-device"
+            ],
             "support": {
-              "chrome": [
-                {
-                  "version_added": "88"
-                },
-                {
-                  "alternative_name": "Feature-Policy",
-                  "version_added": "79"
-                }
-              ],
+              "chrome": {
+                "version_added": "79"
+              },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
@@ -1600,8 +1397,10 @@
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
               "webview_android": {
-                "version_added": false
-              }
+                "version_added": false,
+                "impl_url": "https://crbug.com/40652382"
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/http/headers/Pragma.json b/http/headers/Pragma.json
index f5826b21e71f50..79eedabd3122a3 100644
--- a/http/headers/Pragma.json
+++ b/http/headers/Pragma.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Priority.json b/http/headers/Priority.json
index 8ed42de9df07dc..471dd322e1132c 100644
--- a/http/headers/Priority.json
+++ b/http/headers/Priority.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Proxy-Authenticate.json b/http/headers/Proxy-Authenticate.json
index 9a241e15eea5bc..672dfe0900f64a 100644
--- a/http/headers/Proxy-Authenticate.json
+++ b/http/headers/Proxy-Authenticate.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Proxy-Authenticate",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.proxy-authenticate",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/RTT.json b/http/headers/RTT.json
index d7d7593e6a10d0..433399dd9b1049 100644
--- a/http/headers/RTT.json
+++ b/http/headers/RTT.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/RTT",
           "spec_url": "https://wicg.github.io/netinfo/#rtt-request-header-field",
+          "tags": [
+            "web-features:network-information"
+          ],
           "support": {
             "chrome": {
               "version_added": "67",
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Range.json b/http/headers/Range.json
index db4aa4fa7fa3f6..641f0cd3581978 100644
--- a/http/headers/Range.json
+++ b/http/headers/Range.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Range",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.range",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,7 +42,7 @@
         },
         "cors_safe": {
           "__compat": {
-            "description": "CORS-safelisted request header with single <code>bytes</code> range",
+            "description": "CORS-safelisted request header with single `bytes` range",
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -60,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Referer.json b/http/headers/Referer.json
index 8edaed2d022a0e..79d222e4989446 100644
--- a/http/headers/Referer.json
+++ b/http/headers/Referer.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Referer",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.referer",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -60,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Referrer-Policy.json b/http/headers/Referrer-Policy.json
index ae6bf064e92818..33c67a7541486d 100644
--- a/http/headers/Referrer-Policy.json
+++ b/http/headers/Referrer-Policy.json
@@ -33,7 +33,8 @@
             "samsunginternet_android": {
               "version_added": "7.2"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -43,7 +44,7 @@
         },
         "default_strict-origin-when-cross-origin": {
           "__compat": {
-            "description": "Default policy is <code>strict-origin-when-cross-origin</code>",
+            "description": "Default policy is `strict-origin-when-cross-origin`",
             "tags": [
               "web-features:referrer-policy"
             ],
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +82,9 @@
         "no-referrer-when-downgrade": {
           "__compat": {
             "description": "no-referrer-when-downgrade",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56"
@@ -108,7 +113,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -120,6 +126,9 @@
         "origin-when-cross-origin": {
           "__compat": {
             "description": "origin-when-cross-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56"
@@ -148,7 +157,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -160,6 +170,9 @@
         "same-origin": {
           "__compat": {
             "description": "same-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -185,7 +198,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -197,6 +211,9 @@
         "strict-origin": {
           "__compat": {
             "description": "strict-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -222,7 +239,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -234,6 +252,9 @@
         "strict-origin-when-cross-origin": {
           "__compat": {
             "description": "strict-origin-when-cross-origin",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "61"
@@ -259,7 +280,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -271,6 +293,9 @@
         "unsafe-url": {
           "__compat": {
             "description": "unsafe-url",
+            "tags": [
+              "web-features:referrer-policy"
+            ],
             "support": {
               "chrome": {
                 "version_added": "56"
@@ -299,7 +324,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/types/time-percentage.json b/http/headers/Refresh.json
similarity index 58%
rename from css/types/time-percentage.json
rename to http/headers/Refresh.json
index a4807da7523145..7d64bb9178b881 100644
--- a/css/types/time-percentage.json
+++ b/http/headers/Refresh.json
@@ -1,11 +1,10 @@
 {
-  "css": {
-    "types": {
-      "time-percentage": {
+  "http": {
+    "headers": {
+      "Refresh": {
         "__compat": {
-          "description": "<code>&lt;time-percentage&gt;</code>",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/time-percentage",
-          "spec_url": "https://drafts.csswg.org/css-values/#mixed-percentages",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Refresh",
+          "spec_url": "https://html.spec.whatwg.org/multipage/document-lifecycle.html#the-refresh-header",
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,27 +14,26 @@
               "version_added": "12"
             },
             "firefox": {
-              "version_added": "4"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
-              "version_added": "9"
+              "version_added": "≤6"
             },
             "oculus": "mirror",
             "opera": {
-              "version_added": "10.1"
+              "version_added": "≤12.1"
             },
             "opera_android": {
-              "version_added": "10.1"
+              "version_added": "≤12.1"
             },
             "safari": {
-              "version_added": "3.1"
+              "version_added": "1"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": "2"
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Report-To.json b/http/headers/Report-To.json
index 8dd3e329e36e73..b2a6c01658aff9 100644
--- a/http/headers/Report-To.json
+++ b/http/headers/Report-To.json
@@ -3,6 +3,7 @@
     "headers": {
       "Report-To": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Report-To",
           "support": {
             "chrome": {
               "version_added": "70"
@@ -35,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Reporting-Endpoints.json b/http/headers/Reporting-Endpoints.json
index ba579f387dd668..49f044c290efa6 100644
--- a/http/headers/Reporting-Endpoints.json
+++ b/http/headers/Reporting-Endpoints.json
@@ -37,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Retry-After.json b/http/headers/Retry-After.json
index b85f896452c5f5..c91d0174ea3a95 100644
--- a/http/headers/Retry-After.json
+++ b/http/headers/Retry-After.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Save-Data.json b/http/headers/Save-Data.json
index f2a69f07aec201..190c6e4b3d1c3d 100644
--- a/http/headers/Save-Data.json
+++ b/http/headers/Save-Data.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Save-Data",
           "spec_url": "https://wicg.github.io/savedata/#save-data-request-header-field",
+          "tags": [
+            "web-features:savedata"
+          ],
           "support": {
             "chrome": {
               "version_added": "49"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-Browsing-Topics.json b/http/headers/Sec-Browsing-Topics.json
index ed4ede2d6b52d2..8e409b10169e6c 100644
--- a/http/headers/Sec-Browsing-Topics.json
+++ b/http/headers/Sec-Browsing-Topics.json
@@ -25,7 +25,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-Prefers-Color-Scheme.json b/http/headers/Sec-CH-Prefers-Color-Scheme.json
index 46012be5550626..ed49add9147a5a 100644
--- a/http/headers/Sec-CH-Prefers-Color-Scheme.json
+++ b/http/headers/Sec-CH-Prefers-Color-Scheme.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-Prefers-Color-Scheme": {
         "__compat": {
-          "description": "<code>Sec-CH-Prefers-Color-Scheme</code> request header",
+          "description": "`Sec-CH-Prefers-Color-Scheme` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme",
           "spec_url": "https://wicg.github.io/user-preference-media-features-headers/#sec-ch-prefers-color-scheme",
+          "tags": [
+            "web-features:prefers-color-scheme"
+          ],
           "support": {
             "chrome": {
               "version_added": "93"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-Prefers-Reduced-Motion.json b/http/headers/Sec-CH-Prefers-Reduced-Motion.json
index 1eb4cc5807c73a..28f1e45654bf36 100644
--- a/http/headers/Sec-CH-Prefers-Reduced-Motion.json
+++ b/http/headers/Sec-CH-Prefers-Reduced-Motion.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-Prefers-Reduced-Motion": {
         "__compat": {
-          "description": "<code>Sec-CH-Prefers-Reduced-Motion</code> request header",
+          "description": "`Sec-CH-Prefers-Reduced-Motion` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Motion",
           "spec_url": "https://wicg.github.io/user-preference-media-features-headers/#sec-ch-prefers-reduced-motion",
+          "tags": [
+            "web-features:prefers-reduced-motion"
+          ],
           "support": {
             "chrome": {
               "version_added": "108"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-Prefers-Reduced-Transparency.json b/http/headers/Sec-CH-Prefers-Reduced-Transparency.json
index 04fcb93d423871..96e5ae22059d2c 100644
--- a/http/headers/Sec-CH-Prefers-Reduced-Transparency.json
+++ b/http/headers/Sec-CH-Prefers-Reduced-Transparency.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-Prefers-Reduced-Transparency": {
         "__compat": {
-          "description": "<code>Sec-CH-Prefers-Reduced-Transparency</code> request header",
+          "description": "`Sec-CH-Prefers-Reduced-Transparency` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Transparency",
           "spec_url": "https://wicg.github.io/user-preference-media-features-headers/#sec-ch-prefers-reduced-transparency",
+          "tags": [
+            "web-features:prefers-reduced-transparency"
+          ],
           "support": {
             "chrome": {
               "version_added": "119"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-UA-Arch.json b/http/headers/Sec-CH-UA-Arch.json
index a1c69af7076b6e..70161b3a50847e 100644
--- a/http/headers/Sec-CH-UA-Arch.json
+++ b/http/headers/Sec-CH-UA-Arch.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-UA-Arch": {
         "__compat": {
-          "description": "<code>Sec-CH-UA-Arch</code> request header",
+          "description": "`Sec-CH-UA-Arch` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-UA-Arch",
           "spec_url": "https://wicg.github.io/ua-client-hints/#sec-ch-ua-arch",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-UA-Bitness.json b/http/headers/Sec-CH-UA-Bitness.json
index 2bacf2a4f420ee..74bf5703eb9baa 100644
--- a/http/headers/Sec-CH-UA-Bitness.json
+++ b/http/headers/Sec-CH-UA-Bitness.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-UA-Bitness": {
         "__compat": {
-          "description": "<code>Sec-CH-UA-Bitness</code> request header",
+          "description": "`Sec-CH-UA-Bitness` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-UA-Bitness",
           "spec_url": "https://wicg.github.io/ua-client-hints/#sec-ch-ua-bitness",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "93"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-UA-Full-Version-List.json b/http/headers/Sec-CH-UA-Full-Version-List.json
index d5a42c70bd6976..bf8128ab709930 100644
--- a/http/headers/Sec-CH-UA-Full-Version-List.json
+++ b/http/headers/Sec-CH-UA-Full-Version-List.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-UA-Full-Version-List": {
         "__compat": {
-          "description": "<code>Sec-CH-UA-Full-Version-List</code> request header",
+          "description": "`Sec-CH-UA-Full-Version-List` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version-List",
           "spec_url": "https://wicg.github.io/ua-client-hints/#sec-ch-ua-full-version-list",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "98"
@@ -29,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-UA-Full-Version.json b/http/headers/Sec-CH-UA-Full-Version.json
index 9c45be593877f5..680247bfcb2170 100644
--- a/http/headers/Sec-CH-UA-Full-Version.json
+++ b/http/headers/Sec-CH-UA-Full-Version.json
@@ -3,7 +3,7 @@
     "headers": {
       "Sec-CH-UA-Full-Version": {
         "__compat": {
-          "description": "<code>Sec-CH-UA-Full-Version</code> request header",
+          "description": "`Sec-CH-UA-Full-Version` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version",
           "spec_url": "https://wicg.github.io/ua-client-hints/#sec-ch-ua-full-version",
           "support": {
@@ -27,7 +27,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Sec-CH-UA-Mobile.json b/http/headers/Sec-CH-UA-Mobile.json
index db3e726aa155ae..0f196d151c5765 100644
--- a/http/headers/Sec-CH-UA-Mobile.json
+++ b/http/headers/Sec-CH-UA-Mobile.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-UA-Mobile": {
         "__compat": {
-          "description": "<code>Sec-CH-UA-Mobile</code> request header",
+          "description": "`Sec-CH-UA-Mobile` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-UA-Mobile",
           "spec_url": "https://wicg.github.io/ua-client-hints/#sec-ch-ua-mobile",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-UA-Model.json b/http/headers/Sec-CH-UA-Model.json
index 5fd1d5a11eb386..490c7c8ac6ea01 100644
--- a/http/headers/Sec-CH-UA-Model.json
+++ b/http/headers/Sec-CH-UA-Model.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-UA-Model": {
         "__compat": {
-          "description": "<code>Sec-CH-UA-Model</code> request header",
+          "description": "`Sec-CH-UA-Model` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-UA-Model",
           "spec_url": "https://wicg.github.io/ua-client-hints/#sec-ch-ua-model",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-UA-Platform-Version.json b/http/headers/Sec-CH-UA-Platform-Version.json
index fb71b3088331a5..75d4ee43baf4ee 100644
--- a/http/headers/Sec-CH-UA-Platform-Version.json
+++ b/http/headers/Sec-CH-UA-Platform-Version.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-UA-Platform-Version": {
         "__compat": {
-          "description": "<code>Sec-CH-UA-Platform-Version</code> request header",
+          "description": "`Sec-CH-UA-Platform-Version` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-UA-Platform-Version",
           "spec_url": "https://wicg.github.io/ua-client-hints/#sec-ch-ua-platform-version",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-UA-Platform.json b/http/headers/Sec-CH-UA-Platform.json
index 2ce10b3f634231..f3644281604210 100644
--- a/http/headers/Sec-CH-UA-Platform.json
+++ b/http/headers/Sec-CH-UA-Platform.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-UA-Platform": {
         "__compat": {
-          "description": "<code>Sec-CH-UA-Platform</code> request header",
+          "description": "`Sec-CH-UA-Platform` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-UA-Platform",
           "spec_url": "https://wicg.github.io/ua-client-hints/#sec-ch-ua-platform",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -27,7 +30,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-CH-UA.json b/http/headers/Sec-CH-UA.json
index e8113c332f970f..c3ec3ff19dfbfb 100644
--- a/http/headers/Sec-CH-UA.json
+++ b/http/headers/Sec-CH-UA.json
@@ -3,9 +3,12 @@
     "headers": {
       "Sec-CH-UA": {
         "__compat": {
-          "description": "<code>Sec-CH-UA</code> request header",
+          "description": "`Sec-CH-UA` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-CH-UA",
           "spec_url": "https://wicg.github.io/ua-client-hints/#sec-ch-ua",
+          "tags": [
+            "web-features:ua-client-hints"
+          ],
           "support": {
             "chrome": {
               "version_added": "89"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Sec-Fetch-Dest.json b/http/headers/Sec-Fetch-Dest.json
index 40ea87122c6fbe..2bfe19bc41859a 100644
--- a/http/headers/Sec-Fetch-Dest.json
+++ b/http/headers/Sec-Fetch-Dest.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,10 +40,13 @@
         },
         "fencedframe": {
           "__compat": {
-            "description": "<code>fencedframe</code> value",
+            "description": "`fencedframe` value",
+            "tags": [
+              "web-features:fencedframe"
+            ],
             "support": {
               "chrome": {
-                "version_added": "117"
+                "version_added": "115"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
@@ -61,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/http/headers/Sec-Fetch-Mode.json b/http/headers/Sec-Fetch-Mode.json
index f3fa73cd7e8515..8fc8d169d5990d 100644
--- a/http/headers/Sec-Fetch-Mode.json
+++ b/http/headers/Sec-Fetch-Mode.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Sec-Fetch-Site.json b/http/headers/Sec-Fetch-Site.json
index af1fe34ba9f094..e3e939c6e7136b 100644
--- a/http/headers/Sec-Fetch-Site.json
+++ b/http/headers/Sec-Fetch-Site.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Sec-Fetch-User.json b/http/headers/Sec-Fetch-User.json
index 47f3327900e94e..fcb257d582c646 100644
--- a/http/headers/Sec-Fetch-User.json
+++ b/http/headers/Sec-Fetch-User.json
@@ -29,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Sec-GPC.json b/http/headers/Sec-GPC.json
index 55cd72c79edee2..25700a67eac677 100644
--- a/http/headers/Sec-GPC.json
+++ b/http/headers/Sec-GPC.json
@@ -4,6 +4,7 @@
       "Sec-GPC": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-GPC",
+          "spec_url": "https://w3c.github.io/gpc/#the-sec-gpc-header-field-for-http-requests",
           "support": {
             "chrome": {
               "version_added": false
@@ -12,7 +13,7 @@
             "edge": "mirror",
             "firefox": {
               "version_added": "120",
-              "notes": "Opt-in to GPC using the Website Privacy Preference setting (<code>about:preferences#privacy</code>) checkbox 'Tell websites not to sell or share my data', or by setting the preference <code>privacy.globalprivacycontrol.enabled</code> to <code>true</code>."
+              "notes": "Opt-in to GPC using the Website Privacy Preference setting (`about:preferences#privacy`) checkbox 'Tell websites not to sell or share my data', or by setting the preference `privacy.globalprivacycontrol.enabled` to `true`."
             },
             "firefox_android": {
               "version_added": false
@@ -28,11 +29,12 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
-            "standard_track": false,
+            "standard_track": true,
             "deprecated": false
           }
         }
diff --git a/http/headers/Sec-Purpose.json b/http/headers/Sec-Purpose.json
index be5c97ee51ef3e..8173e14cb8ddb5 100644
--- a/http/headers/Sec-Purpose.json
+++ b/http/headers/Sec-Purpose.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,19 +42,19 @@
         },
         "prefetch": {
           "__compat": {
-            "description": "<code>Sec-Purpose</code> for <code>&lt;link rel=\"prefetch\"&gt;</code> prefetch",
+            "description": "`Sec-Purpose` for `&lt;link rel=\"prefetch\"&gt;` prefetch",
             "support": {
               "chrome": {
                 "version_added": false,
-                "notes": "Doesn't support <code>Sec-Purpose</code> for <code>&lt;link rel=\"prefetch\"&gt;</code>. In Chrome, the legacy <code>Purpose: prefetch</code> header is used to indicate a <code>link</code> request is a prefetch. See <a href='https://crbug.com/1358419'>bug 1358419</a>."
+                "notes": "Doesn't support `Sec-Purpose` for `&lt;link rel=\"prefetch\"&gt;`. In Chrome, the legacy `Purpose: prefetch` header is used to indicate a `link` request is a prefetch. See [bug 40236973](https://crbug.com/40236973)."
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
                 "version_added": "115",
                 "notes": [
-                  "<code>Sec-Purpose: prefetch</code> replaces the non-standard <code>X-moz: prefetch</code> header that was used to indicate a <code>link</code> prefetch request in earlier versions.",
-                  "Prefetch requests should also include the header <code>Accept</code> header string for navigations, but <code>Accept: */*</code> is sent instead."
+                  "`Sec-Purpose: prefetch` replaces the non-standard `X-moz: prefetch` header that was used to indicate a `link` prefetch request in earlier versions.",
+                  "Prefetch requests should also include the header `Accept` header string for navigations, but `Accept: */*` is sent instead."
                 ]
               },
               "firefox_android": "mirror",
@@ -70,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -81,7 +83,7 @@
         },
         "speculationrules": {
           "__compat": {
-            "description": "<code>Sec-Purpose</code> for <code>&lt;script type=\"speculationrules\"&gt;</code> prefetch",
+            "description": "`Sec-Purpose` for `&lt;script type=\"speculationrules\"&gt;` prefetch",
             "support": {
               "chrome": {
                 "version_added": "110"
@@ -105,7 +107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/css/properties/-webkit-mask-box-image-slice.json b/http/headers/Sec-WebSocket-Accept.json
similarity index 52%
rename from css/properties/-webkit-mask-box-image-slice.json
rename to http/headers/Sec-WebSocket-Accept.json
index 012c565e0f5c65..8f2ba6b9a7c3a5 100644
--- a/css/properties/-webkit-mask-box-image-slice.json
+++ b/http/headers/Sec-WebSocket-Accept.json
@@ -1,30 +1,37 @@
 {
-  "css": {
-    "properties": {
-      "-webkit-mask-box-image-slice": {
+  "http": {
+    "headers": {
+      "Sec-WebSocket-Accept": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-WebSocket-Accept",
+          "spec_url": "https://datatracker.ietf.org/doc/html/rfc6455#section-11.3.3",
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "16"
             },
             "chrome_android": "mirror",
-            "edge": "mirror",
+            "edge": {
+              "version_added": "12"
+            },
             "firefox": {
-              "version_added": false
+              "version_added": "11"
             },
             "firefox_android": "mirror",
             "ie": {
-              "version_added": false
+              "version_added": "10"
             },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "6"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": "≤37"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Sec-WebSocket-Extensions.json b/http/headers/Sec-WebSocket-Extensions.json
new file mode 100644
index 00000000000000..ff1e44fd9b0d30
--- /dev/null
+++ b/http/headers/Sec-WebSocket-Extensions.json
@@ -0,0 +1,45 @@
+{
+  "http": {
+    "headers": {
+      "Sec-WebSocket-Extensions": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-WebSocket-Extensions",
+          "spec_url": "https://datatracker.ietf.org/doc/html/rfc6455#section-11.3.2",
+          "support": {
+            "chrome": {
+              "version_added": "16"
+            },
+            "chrome_android": "mirror",
+            "edge": {
+              "version_added": "12"
+            },
+            "firefox": {
+              "version_added": "11"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": "10"
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "6"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": "≤37"
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/css/properties/word-wrap.json b/http/headers/Sec-WebSocket-Key.json
similarity index 55%
rename from css/properties/word-wrap.json
rename to http/headers/Sec-WebSocket-Key.json
index d28aa221eb613d..c2b4316ab22e13 100644
--- a/css/properties/word-wrap.json
+++ b/http/headers/Sec-WebSocket-Key.json
@@ -1,33 +1,37 @@
 {
-  "css": {
-    "properties": {
-      "word-wrap": {
+  "http": {
+    "headers": {
+      "Sec-WebSocket-Key": {
         "__compat": {
-          "spec_url": "https://drafts.csswg.org/css-text-4/#overflow-wrap-property",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-WebSocket-Key",
+          "spec_url": "https://datatracker.ietf.org/doc/html/rfc6455#section-11.3.1",
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "16"
             },
             "chrome_android": "mirror",
             "edge": {
-              "version_added": "≤80"
+              "version_added": "12"
             },
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "11"
             },
             "firefox_android": "mirror",
             "ie": {
-              "version_added": false
+              "version_added": "10"
             },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "6"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": "≤37"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Sec-WebSocket-Protocol.json b/http/headers/Sec-WebSocket-Protocol.json
new file mode 100644
index 00000000000000..a61f8d63a35705
--- /dev/null
+++ b/http/headers/Sec-WebSocket-Protocol.json
@@ -0,0 +1,45 @@
+{
+  "http": {
+    "headers": {
+      "Sec-WebSocket-Protocol": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-WebSocket-Protocol",
+          "spec_url": "https://datatracker.ietf.org/doc/html/rfc6455#section-11.3.4",
+          "support": {
+            "chrome": {
+              "version_added": "16"
+            },
+            "chrome_android": "mirror",
+            "edge": {
+              "version_added": "12"
+            },
+            "firefox": {
+              "version_added": "11"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": "10"
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "6"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": "≤37"
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/css/properties/-webkit-mask-box-image-source.json b/http/headers/Sec-WebSocket-Version.json
similarity index 52%
rename from css/properties/-webkit-mask-box-image-source.json
rename to http/headers/Sec-WebSocket-Version.json
index 25e9ac9cef36e9..eb91ea08a530e7 100644
--- a/css/properties/-webkit-mask-box-image-source.json
+++ b/http/headers/Sec-WebSocket-Version.json
@@ -1,30 +1,37 @@
 {
-  "css": {
-    "properties": {
-      "-webkit-mask-box-image-source": {
+  "http": {
+    "headers": {
+      "Sec-WebSocket-Version": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Sec-WebSocket-Version",
+          "spec_url": "https://datatracker.ietf.org/doc/html/rfc6455#section-11.3.5",
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "16"
             },
             "chrome_android": "mirror",
-            "edge": "mirror",
+            "edge": {
+              "version_added": "12"
+            },
             "firefox": {
-              "version_added": false
+              "version_added": "11"
             },
             "firefox_android": "mirror",
             "ie": {
-              "version_added": false
+              "version_added": "10"
             },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "6"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": "≤37"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Server-Timing.json b/http/headers/Server-Timing.json
index 43910455068b1e..2e03da7b4bade8 100644
--- a/http/headers/Server-Timing.json
+++ b/http/headers/Server-Timing.json
@@ -31,13 +31,50 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "trailer": {
+          "__compat": {
+            "description": "`Server-Timing` as HTTP trailer",
+            "support": {
+              "chrome": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/40811358"
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "71",
+                "notes": "Only the `Server-Timing` header is a recognized trailer, and it is only exposed to DevTools in the network Timing tab ([bug 1403051](https://bugzil.la/1403051)). Developers cannot access trailers via the Fetch API or XHR."
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/http/headers/Server.json b/http/headers/Server.json
index 73e54613db627b..0e564f6a06c3f3 100644
--- a/http/headers/Server.json
+++ b/http/headers/Server.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Server",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.server",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Service-Worker-Navigation-Preload.json b/http/headers/Service-Worker-Navigation-Preload.json
index 45b1dc1e63026e..aaaf23128eaf35 100644
--- a/http/headers/Service-Worker-Navigation-Preload.json
+++ b/http/headers/Service-Worker-Navigation-Preload.json
@@ -3,7 +3,7 @@
     "headers": {
       "Service-Worker-Navigation-Preload": {
         "__compat": {
-          "description": "<code>Service-Worker-Navigation-Preload</code> request header",
+          "description": "`Service-Worker-Navigation-Preload` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Service-Worker-Navigation-Preload",
           "spec_url": "https://w3c.github.io/ServiceWorker/#handle-fetch",
           "support": {
@@ -41,7 +41,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Set-Cookie.json b/http/headers/Set-Cookie.json
index 44340f69560fd8..fd1ee8335701dd 100644
--- a/http/headers/Set-Cookie.json
+++ b/http/headers/Set-Cookie.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Set-Cookie",
           "spec_url": "https://httpwg.org/specs/rfc6265.html#sane-set-cookie",
+          "tags": [
+            "web-features:cookies"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,9 @@
         },
         "HttpOnly": {
           "__compat": {
+            "tags": [
+              "web-features:cookies"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -67,7 +74,8 @@
                 "version_added": "4"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
         },
         "Max-Age": {
           "__compat": {
+            "tags": [
+              "web-features:cookies"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -121,7 +133,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "preview"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -137,10 +149,11 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -153,6 +166,9 @@
               "https://httpwg.org/specs/rfc6265.html#sane-set-cookie",
               "https://httpwg.org/http-extensions/draft-ietf-httpbis-rfc6265bis.html#name-the-samesite-attribute"
             ],
+            "tags": [
+              "web-features:cookies"
+            ],
             "support": {
               "chrome": {
                 "version_added": "51"
@@ -176,12 +192,12 @@
               "safari": [
                 {
                   "version_added": "13",
-                  "notes": "Safari 13 on macOS 10.14 (Mojave), treats <code>SameSite=None</code> and invalid values as <code>Strict</code>. This is fixed in version 10.15 (Catalina) and later."
+                  "notes": "Safari 13 on macOS 10.14 (Mojave), treats `SameSite=None` and invalid values as `Strict`. This is fixed in version 10.15 (Catalina) and later."
                 },
                 {
                   "version_added": "12",
                   "partial_implementation": true,
-                  "notes": "Treats <code>SameSite=None</code> and invalid values as <code>Strict</code> in macOS before 10.15 Catalina. See <a href='https://webkit.org/b/198181'>bug 198181</a>."
+                  "notes": "Treats `SameSite=None` and invalid values as `Strict` in macOS before 10.15 Catalina. See [bug 198181](https://webkit.org/b/198181)."
                 }
               ],
               "safari_ios": [
@@ -191,11 +207,12 @@
                 {
                   "version_added": "12.2",
                   "partial_implementation": true,
-                  "notes": "Treats <code>SameSite=None</code> and invalid values as <code>Strict</code> in iOS before 13. See <a href='https://webkit.org/b/198181'>bug 198181</a>."
+                  "notes": "Treats `SameSite=None` and invalid values as `Strict` in iOS before 13. See [bug 198181](https://webkit.org/b/198181)."
                 }
               ],
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -205,7 +222,10 @@
           },
           "Lax": {
             "__compat": {
-              "description": "<code>SameSite=Lax</code>",
+              "description": "`SameSite=Lax`",
+              "tags": [
+                "web-features:cookies"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -233,7 +253,8 @@
                   "version_added": "12.2"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -244,7 +265,10 @@
           },
           "Lax_default": {
             "__compat": {
-              "description": "Defaults to <code>Lax</code>",
+              "description": "Defaults to `Lax`",
+              "tags": [
+                "web-features:cookies"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "80"
@@ -279,7 +303,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -290,7 +315,10 @@
           },
           "None": {
             "__compat": {
-              "description": "<code>SameSite=None</code>",
+              "description": "`SameSite=None`",
+              "tags": [
+                "web-features:cookies"
+              ],
               "support": {
                 "chrome": [
                   {
@@ -300,7 +328,7 @@
                     "version_added": "51",
                     "version_removed": "67",
                     "partial_implementation": true,
-                    "notes": "Rejects cookies with <code>SameSite=None</code>. See <a href='https://www.chromium.org/updates/same-site/incompatible-clients'>SameSite=None: Known Incompatible Clients</a>."
+                    "notes": "Rejects cookies with `SameSite=None`. See [SameSite=None: Known Incompatible Clients](https://www.chromium.org/updates/same-site/incompatible-clients)."
                   }
                 ],
                 "chrome_android": "mirror",
@@ -323,7 +351,7 @@
                     "version_added": "51",
                     "version_removed": "54",
                     "partial_implementation": true,
-                    "notes": "Rejects cookies with <code>SameSite=None</code>. See <a href='https://www.chromium.org/updates/same-site/incompatible-clients'>SameSite=None: Known Incompatible Clients</a>."
+                    "notes": "Rejects cookies with `SameSite=None`. See [SameSite=None: Known Incompatible Clients](https://www.chromium.org/updates/same-site/incompatible-clients)."
                   }
                 ],
                 "opera_android": "mirror",
@@ -342,10 +370,11 @@
                     "version_added": "5.4",
                     "version_removed": "9.4",
                     "partial_implementation": true,
-                    "notes": "Rejects cookies with <code>SameSite=None</code>. See <a href='https://www.chromium.org/updates/same-site/incompatible-clients'>SameSite=None: Known Incompatible Clients</a>."
+                    "notes": "Rejects cookies with `SameSite=None`. See [SameSite=None: Known Incompatible Clients](https://www.chromium.org/updates/same-site/incompatible-clients)."
                   }
                 ],
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -356,7 +385,10 @@
           },
           "Strict": {
             "__compat": {
-              "description": "<code>SameSite=Strict</code>",
+              "description": "`SameSite=Strict`",
+              "tags": [
+                "web-features:cookies"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -384,7 +416,8 @@
                   "version_added": "12.2"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -393,9 +426,12 @@
               }
             }
           },
-          "secure_context_required": {
+          "none_requires_secure": {
             "__compat": {
-              "description": "Secure context required",
+              "description": "Secure attribute required if `SameSite=None`",
+              "tags": [
+                "web-features:cookies"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "80"
@@ -405,14 +441,7 @@
                   "version_added": "86"
                 },
                 "firefox": {
-                  "version_added": "69",
-                  "flags": [
-                    {
-                      "type": "preference",
-                      "name": "network.cookie.sameSite.noneRequiresSecure",
-                      "value_to_set": "true"
-                    }
-                  ]
+                  "version_added": "131"
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -430,7 +459,10 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": {
+                  "version_added": false
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -442,6 +474,9 @@
           "schemeful": {
             "__compat": {
               "description": "URL scheme-aware (\"schemeful\")",
+              "tags": [
+                "web-features:cookies"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "91"
@@ -470,9 +505,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": {
-                  "version_added": false
-                }
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -485,6 +519,9 @@
         "cookie_prefixes": {
           "__compat": {
             "description": "Cookie prefixes",
+            "tags": [
+              "web-features:cookies"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -506,7 +543,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Set-Login.json b/http/headers/Set-Login.json
index 6a17ea4d4a13ff..76238917b549f0 100644
--- a/http/headers/Set-Login.json
+++ b/http/headers/Set-Login.json
@@ -4,7 +4,7 @@
       "Set-Login": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Set-Login",
-          "spec_url": "https://fedidcg.github.io/FedCM/#login-status-http",
+          "spec_url": "https://w3c-fedid.github.io/FedCM/#login-status-http",
           "support": {
             "chrome": {
               "version_added": "120"
@@ -28,7 +28,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Snapshot-Content-Location.json b/http/headers/Snapshot-Content-Location.json
index af04bded15da37..76ba857e87ed72 100644
--- a/http/headers/Snapshot-Content-Location.json
+++ b/http/headers/Snapshot-Content-Location.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/SourceMap.json b/http/headers/SourceMap.json
index 3c9a8bbc7061d9..2edefbd99edcd0 100644
--- a/http/headers/SourceMap.json
+++ b/http/headers/SourceMap.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/SourceMap",
           "spec_url": "https://tc39.es/source-map/#linking-generated-code",
+          "tags": [
+            "web-features:sourcemap-header"
+          ],
           "support": {
             "chrome": [
               {
@@ -52,7 +55,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Speculation-Rules.json b/http/headers/Speculation-Rules.json
index 46ec354fe7c0c3..6df253a4824223 100644
--- a/http/headers/Speculation-Rules.json
+++ b/http/headers/Speculation-Rules.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Speculation-Rules",
           "spec_url": "https://wicg.github.io/nav-speculation/speculation-rules.html#speculation-rules-header",
+          "tags": [
+            "web-features:speculation-rules"
+          ],
           "support": {
             "chrome": {
               "version_added": "121"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/http/headers/Strict-Transport-Security.json b/http/headers/Strict-Transport-Security.json
index 82b0c7fdd126be..6b11d4a47ecc0e 100644
--- a/http/headers/Strict-Transport-Security.json
+++ b/http/headers/Strict-Transport-Security.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Strict-Transport-Security",
           "spec_url": "https://www.rfc-editor.org/rfc/rfc6797#section-6.1",
+          "tags": [
+            "web-features:hsts"
+          ],
           "support": {
             "chrome": {
               "version_added": "4"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Supports-Loading-Mode.json b/http/headers/Supports-Loading-Mode.json
index a5e79fe3ba2e11..9fce31e560a640 100644
--- a/http/headers/Supports-Loading-Mode.json
+++ b/http/headers/Supports-Loading-Mode.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Supports-Loading-Mode",
           "spec_url": "https://wicg.github.io/nav-speculation/prerendering.html#supports-loading-mode",
+          "tags": [
+            "web-features:speculation-rules"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
@@ -36,7 +40,10 @@
         },
         "credentialed-prerender": {
           "__compat": {
-            "description": "<code>credentialed-prerender</code> directive",
+            "description": "`credentialed-prerender` directive",
+            "tags": [
+              "web-features:speculation-rules"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -69,7 +77,10 @@
         },
         "fenced-frames": {
           "__compat": {
-            "description": "<code>fenced-frames</code> directive",
+            "description": "`fenced-frames` directive",
+            "tags": [
+              "web-features:speculation-rules"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/http/headers/TE.json b/http/headers/TE.json
index 60b8f61b6c9fff..1681b69ef31c01 100644
--- a/http/headers/TE.json
+++ b/http/headers/TE.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/TE",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.te",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Timing-Allow-Origin.json b/http/headers/Timing-Allow-Origin.json
index 5bb4d5b5dbcccb..8f2d2d679c1974 100644
--- a/http/headers/Timing-Allow-Origin.json
+++ b/http/headers/Timing-Allow-Origin.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Timing-Allow-Origin",
           "spec_url": "https://w3c.github.io/resource-timing/#sec-timing-allow-origin",
+          "tags": [
+            "web-features:performance"
+          ],
           "support": {
             "chrome": {
               "version_added": "54"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Trailer.json b/http/headers/Trailer.json
index af2b226b208b95..2b31515e86d927 100644
--- a/http/headers/Trailer.json
+++ b/http/headers/Trailer.json
@@ -8,30 +8,34 @@
             "https://httpwg.org/specs/rfc9110.html#field.trailer",
             "https://httpwg.org/specs/rfc9112.html#chunked.trailer.section"
           ],
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
-              "version_added": "1"
+              "version_added": false
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "12"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "1"
+              "version_added": "71",
+              "partial_implementation": true,
+              "notes": "Only the `Server-Timing` header is a recognized trailer, and it is only exposed to DevTools in the network Timing tab ([bug 1403051](https://bugzil.la/1403051)). Developers cannot access trailers via the Fetch API or XHR."
             },
             "firefox_android": "mirror",
             "ie": {
-              "version_added": "≤11"
+              "version_added": false
             },
             "oculus": "mirror",
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "1"
+              "version_added": false
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Transfer-Encoding.json b/http/headers/Transfer-Encoding.json
index dc4fc592be0170..6d462ee07c54ac 100644
--- a/http/headers/Transfer-Encoding.json
+++ b/http/headers/Transfer-Encoding.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Transfer-Encoding",
           "spec_url": "https://httpwg.org/specs/rfc9112.html#field.transfer-encoding",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Upgrade-Insecure-Requests.json b/http/headers/Upgrade-Insecure-Requests.json
index 00c59eb78a5715..748c71d0cd2977 100644
--- a/http/headers/Upgrade-Insecure-Requests.json
+++ b/http/headers/Upgrade-Insecure-Requests.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Upgrade-Insecure-Requests",
           "spec_url": "https://w3c.github.io/webappsec-upgrade-insecure-requests/#preference",
+          "tags": [
+            "web-features:upgrade-insecure-requests"
+          ],
           "support": {
             "chrome": {
               "version_added": "44"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Upgrade.json b/http/headers/Upgrade.json
index 07429facab03a8..2862de8e6408ae 100644
--- a/http/headers/Upgrade.json
+++ b/http/headers/Upgrade.json
@@ -32,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/User-Agent.json b/http/headers/User-Agent.json
index 595c4c89f9e8f9..d3e33f184904db 100644
--- a/http/headers/User-Agent.json
+++ b/http/headers/User-Agent.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/User-Agent",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.user-agent",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Vary.json b/http/headers/Vary.json
index b866c9caa9b957..fb04c844828be7 100644
--- a/http/headers/Vary.json
+++ b/http/headers/Vary.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Vary",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.vary",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Via.json b/http/headers/Via.json
index 528e8dffdab235..444db90ecc7eb6 100644
--- a/http/headers/Via.json
+++ b/http/headers/Via.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Via",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.via",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Viewport-Width.json b/http/headers/Viewport-Width.json
index 8953ae1de83a76..d20b0fc53a4c65 100644
--- a/http/headers/Viewport-Width.json
+++ b/http/headers/Viewport-Width.json
@@ -3,7 +3,7 @@
     "headers": {
       "Viewport-Width": {
         "__compat": {
-          "description": "<code>Viewport-Width</code> request header",
+          "description": "`Viewport-Width` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Viewport-Width",
           "support": {
             "chrome": {
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/WWW-Authenticate.json b/http/headers/WWW-Authenticate.json
index 056c285a32eb11..145e1f0cd54f6e 100644
--- a/http/headers/WWW-Authenticate.json
+++ b/http/headers/WWW-Authenticate.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/WWW-Authenticate",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#field.www-authenticate",
+          "tags": [
+            "web-features:http-authentication"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,8 +42,11 @@
         },
         "Basic": {
           "__compat": {
-            "description": "<code>Basic</code> authentication",
+            "description": "`Basic` authentication",
             "spec_url": "https://httpwg.org/specs/rfc7617.html#basic.authentication.scheme",
+            "tags": [
+              "web-features:http-authentication"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -65,7 +72,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,8 +84,11 @@
         },
         "Digest": {
           "__compat": {
-            "description": "<code>Digest</code> authentication",
+            "description": "`Digest` authentication",
             "spec_url": "https://httpwg.org/specs/rfc7616.html#digest.access.authentication.scheme",
+            "tags": [
+              "web-features:http-authentication"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,6 +124,9 @@
           "SHA-256": {
             "__compat": {
               "description": "SHA2-256 digest authentication",
+              "tags": [
+                "web-features:http-authentication"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "117"
@@ -133,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -145,6 +161,9 @@
           "md5": {
             "__compat": {
               "description": "MD5 digest authentication",
+              "tags": [
+                "web-features:http-authentication"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "1"
@@ -168,7 +187,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -180,8 +200,11 @@
         },
         "Negotiate": {
           "__compat": {
-            "description": "<code>Negotiate</code> (Kerberos) authentication",
+            "description": "`Negotiate` (Kerberos) authentication",
             "spec_url": "https://www.rfc-editor.org/rfc/rfc4120#section-1",
+            "tags": [
+              "web-features:http-authentication"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -203,7 +226,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -214,7 +238,10 @@
         },
         "NTLM": {
           "__compat": {
-            "description": "<code>NTLM</code> authentication",
+            "description": "`NTLM` authentication",
+            "tags": [
+              "web-features:http-authentication"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -236,7 +263,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/http/headers/Warning.json b/http/headers/Warning.json
index 33b6dd8b92d2ab..c3ba7e9184d211 100644
--- a/http/headers/Warning.json
+++ b/http/headers/Warning.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/Width.json b/http/headers/Width.json
index 0633520c3e3694..1d55668b65de21 100644
--- a/http/headers/Width.json
+++ b/http/headers/Width.json
@@ -3,7 +3,7 @@
     "headers": {
       "Width": {
         "__compat": {
-          "description": "<code>Width</code> request header",
+          "description": "`Width` request header",
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Width",
           "support": {
             "chrome": {
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/X-Content-Type-Options.json b/http/headers/X-Content-Type-Options.json
index 0981a04883e461..e9adcdb0f3dfdc 100644
--- a/http/headers/X-Content-Type-Options.json
+++ b/http/headers/X-Content-Type-Options.json
@@ -35,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/X-DNS-Prefetch-Control.json b/http/headers/X-DNS-Prefetch-Control.json
index 07a815707311df..21d61bb17ec5fd 100644
--- a/http/headers/X-DNS-Prefetch-Control.json
+++ b/http/headers/X-DNS-Prefetch-Control.json
@@ -27,7 +27,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/headers/X-Frame-Options.json b/http/headers/X-Frame-Options.json
index 1c6e8ea0af8c52..3493d5a4d0d41a 100644
--- a/http/headers/X-Frame-Options.json
+++ b/http/headers/X-Frame-Options.json
@@ -30,12 +30,13 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
-            "deprecated": false
+            "deprecated": true
           }
         },
         "ALLOW-FROM": {
@@ -68,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,12 +107,13 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": true,
-              "deprecated": false
+              "deprecated": true
             }
           }
         }
diff --git a/http/headers/X-XSS-Protection.json b/http/headers/X-XSS-Protection.json
index dba1283b105d84..0f6187217ae807 100644
--- a/http/headers/X-XSS-Protection.json
+++ b/http/headers/X-XSS-Protection.json
@@ -32,7 +32,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/methods.json b/http/methods.json
index e84fffb6fe8ebd..3cd616e5c1ddee 100644
--- a/http/methods.json
+++ b/http/methods.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Methods/CONNECT",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#CONNECT",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +45,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Methods/DELETE",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#DELETE",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -64,7 +71,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -109,7 +117,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "1"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -122,6 +131,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Methods/HEAD",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#HEAD",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -145,7 +157,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -158,6 +171,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Methods/OPTIONS",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#OPTIONS",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -181,7 +197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -194,6 +211,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Methods/POST",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#POST",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -217,7 +237,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -230,6 +251,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/HTTP/Methods/PUT",
           "spec_url": "https://httpwg.org/specs/rfc9110.html#PUT",
+          "tags": [
+            "web-features:http11"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -253,7 +277,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/mixed-content.json b/http/mixed-content.json
index faa8df14849c4a..d83e71b9e231c6 100644
--- a/http/mixed-content.json
+++ b/http/mixed-content.json
@@ -5,6 +5,9 @@
         "description": "Blocks some or all insecure mixed content.",
         "mdn_url": "https://developer.mozilla.org/docs/Web/Security/Mixed_content",
         "spec_url": "https://w3c.github.io/webappsec-mixed-content/#intro",
+        "tags": [
+          "web-features:mixed-content"
+        ],
         "support": {
           "chrome": {
             "version_added": "≤79"
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -36,8 +40,11 @@
       },
       "allow_file_urls": {
         "__compat": {
-          "description": "Allow mixed content from <code>file:</code> URLs.",
+          "description": "Allow mixed content from `file:` URLs.",
           "spec_url": "https://w3c.github.io/webappsec-mixed-content/#intro",
+          "tags": [
+            "web-features:mixed-content"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤79"
@@ -59,7 +66,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,8 +78,11 @@
       },
       "allow_localhost_url": {
         "__compat": {
-          "description": "Allow mixed content from localhost addresses (<code>http://localhost/</code> and <code>http://*.localhost/</code>).",
+          "description": "Allow mixed content from localhost addresses (`http://localhost/` and `http://*.localhost/`).",
           "spec_url": "https://w3c.github.io/webappsec-mixed-content/#intro",
+          "tags": [
+            "web-features:mixed-content"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤79"
@@ -93,7 +104,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,8 +116,11 @@
       },
       "allow_loopback_url": {
         "__compat": {
-          "description": "Allow mixed content from loopback address (<code>http://127.0.0.1/</code>).",
+          "description": "Allow mixed content from loopback address (`http://127.0.0.1/`).",
           "spec_url": "https://w3c.github.io/webappsec-mixed-content/#intro",
+          "tags": [
+            "web-features:mixed-content"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤79"
@@ -127,7 +142,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -140,6 +156,9 @@
         "__compat": {
           "description": "Upgradable image mixed content by default.",
           "spec_url": "https://w3c.github.io/webappsec-mixed-content/#category-upgradeable",
+          "tags": [
+            "web-features:mixed-content"
+          ],
           "support": {
             "chrome": {
               "version_added": "86"
@@ -149,8 +168,8 @@
             "firefox": {
               "version_added": "127",
               "notes": [
-                "Set <code>security.mixed_content.upgrade_display_content</code> preference to <code>true</code> to allow HTTP fetching and display of upgradable content.",
-                "Set <code>security.mixed_content.block_display_content</code> preference to <code>true</code> to block all mixed content."
+                "Set `security.mixed_content.upgrade_display_content` preference to `true` to allow HTTP fetching and display of upgradable content.",
+                "Set `security.mixed_content.block_display_content` preference to `true` to block all mixed content."
               ]
             },
             "firefox_android": "mirror",
@@ -165,7 +184,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -178,6 +198,9 @@
         "__compat": {
           "description": "Upgrade video and audio content by default.",
           "spec_url": "https://w3c.github.io/webappsec-mixed-content/#category-upgradeable",
+          "tags": [
+            "web-features:mixed-content"
+          ],
           "support": {
             "chrome": {
               "version_added": "80"
@@ -187,8 +210,8 @@
             "firefox": {
               "version_added": "127",
               "notes": [
-                "Set <code>security.mixed_content.upgrade_display_content</code> preference to <code>true</code> to allow HTTP fetching and display of upgradable content.",
-                "Set <code>security.mixed_content.block_display_content</code> preference to <code>true</code> to block all mixed content."
+                "Set `security.mixed_content.upgrade_display_content` preference to `true` to allow HTTP fetching and display of upgradable content.",
+                "Set `security.mixed_content.block_display_content` preference to `true` to block all mixed content."
               ]
             },
             "firefox_android": "mirror",
@@ -203,7 +226,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -216,6 +240,9 @@
         "__compat": {
           "description": "Block mixed downloads.",
           "spec_url": "https://w3c.github.io/webappsec-mixed-content/#mixed-download",
+          "tags": [
+            "web-features:mixed-content"
+          ],
           "support": {
             "chrome": {
               "version_added": "92"
@@ -237,7 +264,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -250,6 +278,9 @@
         "__compat": {
           "description": "Block 'blockable' mixed content.",
           "spec_url": "https://w3c.github.io/webappsec-mixed-content/#category-blockable",
+          "tags": [
+            "web-features:mixed-content"
+          ],
           "support": {
             "chrome": {
               "version_added": "79",
@@ -272,7 +303,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -306,7 +338,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/http/status.json b/http/status.json
index 235db75585cd6a..52d605570e0969 100644
--- a/http/status.json
+++ b/http/status.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,7 +42,7 @@
         },
         "preconnect": {
           "__compat": {
-            "description": "<code>rel=preconnect</code>",
+            "description": "`rel=preconnect`",
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -63,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,7 +76,7 @@
         },
         "preload": {
           "__compat": {
-            "description": "<code>rel=preload</code>",
+            "description": "`rel=preload`",
             "support": {
               "chrome": {
                 "version_added": "103"
@@ -96,7 +98,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -136,7 +139,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -171,7 +175,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/builtins/AggregateError.json b/javascript/builtins/AggregateError.json
index d67cf655257883..0eb86351cc06cd 100644
--- a/javascript/builtins/AggregateError.json
+++ b/javascript/builtins/AggregateError.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AggregateError",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-aggregate-error-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2021"
+            "web-features:snapshot:ecmascript-2021",
+            "web-features:promise-any"
           ],
           "support": {
             "chrome": {
@@ -35,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,11 +47,12 @@
         },
         "AggregateError": {
           "__compat": {
-            "description": "<code>AggregateError()</code> constructor",
+            "description": "`AggregateError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AggregateError/AggregateError",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-aggregate-error-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2021"
+              "web-features:snapshot:ecmascript-2021",
+              "web-features:promise-any"
             ],
             "support": {
               "chrome": {
@@ -78,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -92,7 +96,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AggregateError/errors",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-aggregate-error",
             "tags": [
-              "web-features:snapshot:ecmascript-2021"
+              "web-features:snapshot:ecmascript-2021",
+              "web-features:promise-any"
             ],
             "support": {
               "chrome": {
@@ -121,7 +126,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,7 +138,7 @@
         },
         "serializable_object": {
           "__compat": {
-            "description": "<code>AggregateError</code> is serializable",
+            "description": "`AggregateError` is serializable",
             "mdn_url": "https://developer.mozilla.org/docs/Glossary/Serializable_object",
             "support": {
               "chrome": {
@@ -145,7 +151,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "103",
-                "notes": "Serialized properties: <code>name</code>, <code>message</code>, <code>cause</code>, <code>errors</code>."
+                "notes": "Serialized properties: `name`, `message`, `cause`, `errors`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -162,7 +168,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
diff --git a/javascript/builtins/Array.json b/javascript/builtins/Array.json
index cb286722a63157..69d546cc14fdf6 100644
--- a/javascript/builtins/Array.json
+++ b/javascript/builtins/Array.json
@@ -44,7 +44,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -54,7 +55,7 @@
         },
         "Array": {
           "__compat": {
-            "description": "<code>Array()</code> constructor",
+            "description": "`Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-array-constructor",
             "tags": [
@@ -96,7 +97,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +142,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -190,7 +193,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -236,7 +240,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -282,7 +287,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -336,7 +342,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -382,7 +389,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -436,7 +444,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -484,7 +493,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -532,7 +542,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -576,7 +587,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -620,7 +632,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -664,7 +677,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -708,7 +722,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -762,7 +777,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -808,7 +824,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -851,7 +868,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -897,7 +915,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -951,7 +970,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1001,7 +1021,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1051,7 +1072,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1097,7 +1119,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1151,7 +1174,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1203,7 +1227,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1257,7 +1282,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1307,7 +1333,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1357,7 +1384,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1407,7 +1435,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1457,7 +1486,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1507,7 +1537,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1557,7 +1588,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1607,7 +1639,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1657,7 +1690,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1711,7 +1745,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1761,7 +1796,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1803,7 +1839,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1838,7 +1875,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "5.5",
-                "notes": "From Internet Explorer 5.5 through 8, all elements of the array will not be deleted if <code>deleteCount</code> is omitted. This behavior was fixed in Internet Explorer 9."
+                "notes": "From Internet Explorer 5.5 through 8, all elements of the array will not be deleted if `deleteCount` is omitted. This behavior was fixed in Internet Explorer 9."
               },
               "nodejs": {
                 "version_added": "0.10.0"
@@ -1855,7 +1892,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1871,6 +1909,9 @@
               "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-array.prototype.tolocalestring",
               "https://tc39.es/ecma402/#sup-array.prototype.tolocalestring"
             ],
+            "tags": [
+              "web-features:intl"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -1906,7 +1947,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1916,7 +1958,10 @@
           },
           "locales_parameter": {
             "__compat": {
-              "description": "<code>locales</code> parameter",
+              "description": "`locales` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -1930,7 +1975,7 @@
                     "version_added": "1.0",
                     "version_removed": "1.8",
                     "partial_implementation": true,
-                    "notes": "Only the locale data for <code>en-US</code> is available."
+                    "notes": "Only the locale data for `en-US` is available."
                   }
                 ],
                 "edge": "mirror",
@@ -1950,7 +1995,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the function silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the function silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -1963,7 +2008,8 @@
                 "samsunginternet_android": {
                   "version_added": "2.0"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1974,7 +2020,10 @@
           },
           "options_parameter": {
             "__compat": {
-              "description": "<code>options</code> parameter",
+              "description": "`options` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2006,7 +2055,8 @@
                 "samsunginternet_android": {
                   "version_added": "2.0"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2051,7 +2101,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2095,7 +2146,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2139,7 +2191,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2191,7 +2244,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2241,7 +2295,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2293,7 +2348,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2337,7 +2393,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2374,13 +2431,13 @@
                   "alternative_name": "@@iterator",
                   "version_added": "27",
                   "version_removed": "36",
-                  "notes": "A placeholder property named <code>@@iterator</code> is used."
+                  "notes": "A placeholder property named `@@iterator` is used."
                 },
                 {
                   "alternative_name": "iterator",
                   "version_added": "17",
                   "version_removed": "27",
-                  "notes": "A placeholder property named <code>iterator</code> is used."
+                  "notes": "A placeholder property named `iterator` is used."
                 }
               ],
               "firefox_android": "mirror",
@@ -2398,7 +2455,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2442,7 +2500,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2488,7 +2547,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/ArrayBuffer.json b/javascript/builtins/ArrayBuffer.json
index 21a9c4cb23957c..ad9308ad3265c7 100644
--- a/javascript/builtins/ArrayBuffer.json
+++ b/javascript/builtins/ArrayBuffer.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer",
           "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-arraybuffer-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:typed-arrays"
           ],
           "support": {
             "chrome": {
@@ -45,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -55,11 +57,12 @@
         },
         "ArrayBuffer": {
           "__compat": {
-            "description": "<code>ArrayBuffer()</code> constructor",
+            "description": "`ArrayBuffer()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/ArrayBuffer",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-arraybuffer-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -98,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -108,11 +112,11 @@
           },
           "maxByteLength_option": {
             "__compat": {
-              "description": "<code>maxByteLength</code> option",
+              "description": "`maxByteLength` option",
               "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-arraybuffer-constructor",
               "tags": [
                 "web-features:snapshot:ecmascript-2024",
-                "web-features:resizable-arraybuffer"
+                "web-features:resizable-buffers"
               ],
               "support": {
                 "chrome": {
@@ -141,7 +145,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -156,7 +161,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/byteLength",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-arraybuffer.prototype.bytelength",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -195,7 +201,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -207,7 +214,7 @@
         "detached": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/detached",
-            "spec_url": "https://tc39.es/proposal-arraybuffer-transfer/#sec-get-arraybuffer.prototype.detached",
+            "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-arraybuffer.prototype.detached",
             "tags": [
               "web-features:transferable-arraybuffer"
             ],
@@ -238,7 +245,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -252,7 +260,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/isView",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-arraybuffer.isview",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -283,7 +292,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -298,7 +308,7 @@
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-arraybuffer.prototype.maxbytelength",
             "tags": [
               "web-features:snapshot:ecmascript-2024",
-              "web-features:resizable-arraybuffer"
+              "web-features:resizable-buffers"
             ],
             "support": {
               "chrome": {
@@ -327,7 +337,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -342,7 +353,7 @@
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-arraybuffer.prototype.resizable",
             "tags": [
               "web-features:snapshot:ecmascript-2024",
-              "web-features:resizable-arraybuffer"
+              "web-features:resizable-buffers"
             ],
             "support": {
               "chrome": {
@@ -371,7 +382,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -386,7 +398,7 @@
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-arraybuffer.prototype.resize",
             "tags": [
               "web-features:snapshot:ecmascript-2024",
-              "web-features:resizable-arraybuffer"
+              "web-features:resizable-buffers"
             ],
             "support": {
               "chrome": {
@@ -415,7 +427,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -429,7 +442,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/slice",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-arraybuffer.prototype.slice",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -444,7 +458,7 @@
               },
               "firefox": {
                 "version_added": "12",
-                "notes": "The non-standard <code>ArrayBuffer.slice()</code> method has been removed in Firefox 53 (but the standardized version <code>ArrayBuffer.prototype.slice()</code> is kept."
+                "notes": "The non-standard `ArrayBuffer.slice()` method has been removed in Firefox 53 (but the standardized version `ArrayBuffer.prototype.slice()` is kept."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -467,7 +481,8 @@
                 "version_added": "6"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -479,7 +494,7 @@
         "transfer": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/transfer",
-            "spec_url": "https://tc39.es/proposal-arraybuffer-transfer/#sec-arraybuffer.prototype.transfer",
+            "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-arraybuffer.prototype.transfer",
             "tags": [
               "web-features:transferable-arraybuffer"
             ],
@@ -510,7 +525,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -522,7 +538,7 @@
         "transferToFixedLength": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/transferToFixedLength",
-            "spec_url": "https://tc39.es/proposal-arraybuffer-transfer/#sec-arraybuffer.prototype.transfertofixedlength",
+            "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-arraybuffer.prototype.transfertofixedlength",
             "tags": [
               "web-features:transferable-arraybuffer"
             ],
@@ -553,7 +569,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -568,7 +585,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/Symbol.species",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-arraybuffer-%symbol.species%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -599,7 +617,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/AsyncFunction.json b/javascript/builtins/AsyncFunction.json
index a9072ddf10b2fd..823ddf6a2114a0 100644
--- a/javascript/builtins/AsyncFunction.json
+++ b/javascript/builtins/AsyncFunction.json
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,7 +49,7 @@
         },
         "AsyncFunction": {
           "__compat": {
-            "description": "<code>AsyncFunction()</code> constructor",
+            "description": "`AsyncFunction()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AsyncFunction/AsyncFunction",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-async-function-constructor",
             "tags": [
@@ -84,7 +85,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/AsyncGenerator.json b/javascript/builtins/AsyncGenerator.json
index bb256a0d98e273..360d519c736f4e 100644
--- a/javascript/builtins/AsyncGenerator.json
+++ b/javascript/builtins/AsyncGenerator.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AsyncGenerator",
           "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-asyncgenerator-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2017"
+            "web-features:snapshot:ecmascript-2017",
+            "web-features:async-generators"
           ],
           "support": {
             "chrome": {
@@ -35,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,7 +50,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AsyncGenerator/next",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-asyncgenerator-prototype-next",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:async-generators"
             ],
             "support": {
               "chrome": {
@@ -77,7 +80,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -91,7 +95,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AsyncGenerator/return",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-asyncgenerator-prototype-return",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:async-generators"
             ],
             "support": {
               "chrome": {
@@ -120,7 +125,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -134,7 +140,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AsyncGenerator/throw",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-asyncgenerator-prototype-throw",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:async-generators"
             ],
             "support": {
               "chrome": {
@@ -163,7 +170,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/AsyncGeneratorFunction.json b/javascript/builtins/AsyncGeneratorFunction.json
index 20bc5240ad37b9..1d212c11f27343 100644
--- a/javascript/builtins/AsyncGeneratorFunction.json
+++ b/javascript/builtins/AsyncGeneratorFunction.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AsyncGeneratorFunction",
           "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-asyncgeneratorfunction-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2017"
+            "web-features:snapshot:ecmascript-2017",
+            "web-features:async-generators"
           ],
           "support": {
             "chrome": {
@@ -35,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,11 +47,12 @@
         },
         "AsyncGeneratorFunction": {
           "__compat": {
-            "description": "<code>AsyncGeneratorFunction()</code> constructor",
+            "description": "`AsyncGeneratorFunction()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AsyncGeneratorFunction/AsyncGeneratorFunction",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-asyncgeneratorfunction-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:async-generators"
             ],
             "support": {
               "chrome": {
@@ -78,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/AsyncIterator.json b/javascript/builtins/AsyncIterator.json
index 060ca77c90a882..4c6724b44d6426 100644
--- a/javascript/builtins/AsyncIterator.json
+++ b/javascript/builtins/AsyncIterator.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AsyncIterator",
           "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-asynciteratorprototype",
           "tags": [
-            "web-features:snapshot:ecmascript-2018"
+            "web-features:snapshot:ecmascript-2018",
+            "web-features:async-iterators"
           ],
           "support": {
             "chrome": {
@@ -35,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,7 +51,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AsyncIterator/Symbol.asyncIterator",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-asynciteratorprototype-asynciterator",
             "tags": [
-              "web-features:snapshot:ecmascript-2018"
+              "web-features:snapshot:ecmascript-2018",
+              "web-features:async-iterators"
             ],
             "support": {
               "chrome": {
@@ -78,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Atomics.json b/javascript/builtins/Atomics.json
index 8dd58132698378..d2268793f97011 100644
--- a/javascript/builtins/Atomics.json
+++ b/javascript/builtins/Atomics.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics",
           "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics-object",
           "tags": [
-            "web-features:snapshot:ecmascript-2017"
+            "web-features:snapshot:ecmascript-2017",
+            "web-features:shared-memory"
           ],
           "support": {
             "chrome": {
@@ -34,11 +35,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "15.2",
-              "notes": "Before Safari 16.4, <code>Atomics</code> is gated behind COOP/COEP. For more detail, read <a href='https://web.dev/coop-coep/'>Making your website \"cross-origin isolated\" using COOP and COEP</a>."
+              "notes": "Before Safari 16.4, `Atomics` is gated behind COOP/COEP. For more detail, read [Making your website \"cross-origin isolated\" using COOP and COEP](https://web.dev/coop-coep/)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,9 +50,10 @@
         },
         "Atomic_operations_on_non_shared_buffers": {
           "__compat": {
-            "description": "Atomic operations on non-shared <code>ArrayBuffer</code> objects",
+            "description": "Atomic operations on non-shared `ArrayBuffer` objects",
             "tags": [
-              "web-features:snapshot:ecmascript-2021"
+              "web-features:snapshot:ecmascript-2021",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -79,7 +82,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -93,7 +97,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/add",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.add",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -124,7 +129,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -138,7 +144,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/and",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.and",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -169,7 +176,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -183,7 +191,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/compareExchange",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.compareexchange",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -214,7 +223,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -228,7 +238,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/exchange",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.exchange",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -259,7 +270,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -273,7 +285,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/isLockFree",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.islockfree",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -304,7 +317,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -318,7 +332,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/load",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.load",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -349,7 +364,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -363,7 +379,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/notify",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.notify",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -394,7 +411,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -408,7 +426,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/or",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.or",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -439,7 +458,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -453,7 +473,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/store",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.store",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -484,7 +505,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -498,7 +520,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/sub",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.sub",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -529,7 +552,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -543,7 +567,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/wait",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.wait",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -574,7 +599,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -588,7 +614,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/waitAsync",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.waitasync",
             "tags": [
-              "web-features:snapshot:ecmascript-2024"
+              "web-features:snapshot:ecmascript-2024",
+              "web-features:atomics-wait-async"
             ],
             "support": {
               "chrome": {
@@ -621,7 +648,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -635,7 +663,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Atomics/xor",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-atomics.xor",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -666,7 +695,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/BigInt.json b/javascript/builtins/BigInt.json
index 22af8421eb7a78..d3219cf5fb0710 100644
--- a/javascript/builtins/BigInt.json
+++ b/javascript/builtins/BigInt.json
@@ -36,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,7 +47,7 @@
         },
         "BigInt": {
           "__compat": {
-            "description": "<code>BigInt()</code> constructor",
+            "description": "`BigInt()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt/BigInt",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-bigint-constructor",
             "tags": [
@@ -80,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -124,7 +126,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -168,7 +171,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -181,6 +185,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt/toLocaleString",
             "spec_url": "https://tc39.es/ecma402/#sup-bigint.prototype.tolocalestring",
+            "tags": [
+              "web-features:intl"
+            ],
             "support": {
               "chrome": {
                 "version_added": "67"
@@ -208,7 +215,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -218,7 +226,10 @@
           },
           "locales_parameter": {
             "__compat": {
-              "description": "<code>locales</code> parameter",
+              "description": "`locales` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "76"
@@ -232,7 +243,7 @@
                     "version_added": "1.0",
                     "version_removed": "1.8",
                     "partial_implementation": true,
-                    "notes": "Only the locale data for <code>en-US</code> is available."
+                    "notes": "Only the locale data for `en-US` is available."
                   }
                 ],
                 "edge": "mirror",
@@ -256,7 +267,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -267,7 +279,10 @@
           },
           "options_parameter": {
             "__compat": {
-              "description": "<code>options</code> parameter",
+              "description": "`options` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "76"
@@ -297,7 +312,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -342,7 +358,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -386,7 +403,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/BigInt64Array.json b/javascript/builtins/BigInt64Array.json
index f3161b625edcf9..fa38bef39c6c34 100644
--- a/javascript/builtins/BigInt64Array.json
+++ b/javascript/builtins/BigInt64Array.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt64Array",
           "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2020"
+            "web-features:snapshot:ecmascript-2020",
+            "web-features:bigint64array"
           ],
           "support": {
             "chrome": {
@@ -35,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,11 +47,12 @@
         },
         "BigInt64Array": {
           "__compat": {
-            "description": "<code>BigInt64Array()</code> constructor",
+            "description": "`BigInt64Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt64Array/BigInt64Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
-              "web-features:snapshot:ecmascript-2020"
+              "web-features:snapshot:ecmascript-2020",
+              "web-features:bigint64array"
             ],
             "support": {
               "chrome": {
@@ -78,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/BigUint64Array.json b/javascript/builtins/BigUint64Array.json
index 534e95039fda0b..950c082122eff7 100644
--- a/javascript/builtins/BigUint64Array.json
+++ b/javascript/builtins/BigUint64Array.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigUint64Array",
           "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2020"
+            "web-features:snapshot:ecmascript-2020",
+            "web-features:bigint64array"
           ],
           "support": {
             "chrome": {
@@ -35,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,11 +47,12 @@
         },
         "BigUint64Array": {
           "__compat": {
-            "description": "<code>BigUint64Array()</code> constructor",
+            "description": "`BigUint64Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigUint64Array/BigUint64Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
-              "web-features:snapshot:ecmascript-2020"
+              "web-features:snapshot:ecmascript-2020",
+              "web-features:bigint64array"
             ],
             "support": {
               "chrome": {
@@ -78,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Boolean.json b/javascript/builtins/Boolean.json
index b39708ecffdb59..191fb151c4736b 100644
--- a/javascript/builtins/Boolean.json
+++ b/javascript/builtins/Boolean.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-boolean-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "Boolean": {
           "__compat": {
-            "description": "<code>Boolean()</code> constructor",
+            "description": "`Boolean()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean/Boolean",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-boolean-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -104,7 +108,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean/toString",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-boolean.prototype.tostring",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -139,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -153,7 +159,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean/valueOf",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-boolean.prototype.valueof",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -188,7 +195,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/DataView.json b/javascript/builtins/DataView.json
index 934798e074f6ba..23b84689d0b356 100644
--- a/javascript/builtins/DataView.json
+++ b/javascript/builtins/DataView.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView",
           "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:typed-arrays"
           ],
           "support": {
             "chrome": {
@@ -43,7 +44,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -53,11 +55,12 @@
         },
         "DataView": {
           "__compat": {
-            "description": "<code>DataView()</code> constructor",
+            "description": "`DataView()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/DataView",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -94,7 +97,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -104,9 +108,10 @@
           },
           "sharedarraybuffer_support": {
             "__compat": {
-              "description": "<code>SharedArrayBuffer</code> accepted as buffer",
+              "description": "`SharedArrayBuffer` accepted as buffer",
               "tags": [
-                "web-features:snapshot:ecmascript-2017"
+                "web-features:snapshot:ecmascript-2017",
+                "web-features:shared-memory"
               ],
               "support": {
                 "chrome": {
@@ -137,7 +142,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -152,7 +158,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/buffer",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-dataview.prototype.buffer",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -189,7 +196,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -203,7 +211,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/byteLength",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-dataview.prototype.bytelength",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -240,7 +249,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -254,7 +264,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/byteOffset",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-dataview.prototype.byteoffset",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -291,7 +302,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -305,7 +317,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getBigInt64",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getbigint64",
             "tags": [
-              "web-features:snapshot:ecmascript-2020"
+              "web-features:snapshot:ecmascript-2020",
+              "web-features:bigint64array"
             ],
             "support": {
               "chrome": {
@@ -334,7 +347,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -348,7 +362,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getBigUint64",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getbiguint64",
             "tags": [
-              "web-features:snapshot:ecmascript-2020"
+              "web-features:snapshot:ecmascript-2020",
+              "web-features:bigint64array"
             ],
             "support": {
               "chrome": {
@@ -377,7 +392,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -416,11 +432,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -434,7 +451,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getFloat32",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getfloat32",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -471,7 +489,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -485,7 +504,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getFloat64",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getfloat64",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -522,7 +542,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -536,7 +557,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getInt16",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getint16",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -573,7 +595,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -587,7 +610,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getInt32",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getint32",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -624,7 +648,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -638,7 +663,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getInt8",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getint8",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -675,7 +701,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -689,7 +716,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getUint16",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getuint16",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -726,7 +754,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -740,7 +769,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getUint32",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getuint32",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -777,7 +807,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -791,7 +822,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/getUint8",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.getuint8",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -828,7 +860,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -842,7 +875,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setBigInt64",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setbigint64",
             "tags": [
-              "web-features:snapshot:ecmascript-2020"
+              "web-features:snapshot:ecmascript-2020",
+              "web-features:bigint64array"
             ],
             "support": {
               "chrome": {
@@ -871,7 +905,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -885,7 +920,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setBigUint64",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setbiguint64",
             "tags": [
-              "web-features:snapshot:ecmascript-2020"
+              "web-features:snapshot:ecmascript-2020",
+              "web-features:bigint64array"
             ],
             "support": {
               "chrome": {
@@ -914,7 +950,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -953,11 +990,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -971,7 +1009,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setFloat32",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setfloat32",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -1008,7 +1047,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1022,7 +1062,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setFloat64",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setfloat64",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -1059,7 +1100,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1073,7 +1115,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setInt16",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setint16",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -1110,7 +1153,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1124,7 +1168,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setInt32",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setint32",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -1161,7 +1206,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1175,7 +1221,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setInt8",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setint8",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -1212,7 +1259,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1226,7 +1274,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint16",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setuint16",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -1263,7 +1312,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1277,7 +1327,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint32",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setuint32",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -1314,7 +1365,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1328,7 +1380,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint8",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-dataview.prototype.setuint8",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -1365,7 +1418,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Date.json b/javascript/builtins/Date.json
index a7eda746dacfd5..978579739bbf25 100644
--- a/javascript/builtins/Date.json
+++ b/javascript/builtins/Date.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date",
           "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:date"
           ],
           "support": {
             "chrome": {
@@ -25,7 +26,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "3",
-              "notes": "The <a href='https://en.wikipedia.org/wiki/ISO_8601'>ISO8601 Date Format</a> is not supported in Internet Explorer 8 or earlier."
+              "notes": "The [ISO8601 Date Format](https://en.wikipedia.org/wiki/ISO_8601) is not supported in Internet Explorer 8 or earlier."
             },
             "nodejs": {
               "version_added": "0.10.0"
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -52,11 +54,12 @@
         },
         "Date": {
           "__compat": {
-            "description": "<code>Date()</code> constructor",
+            "description": "`Date()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/Date",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -91,7 +94,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -105,7 +109,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/UTC",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.utc",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -140,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,9 +156,10 @@
           },
           "optional_monthIndex": {
             "__compat": {
-              "description": "<code>monthIndex</code> defaults to 0",
+              "description": "`monthIndex` defaults to 0",
               "tags": [
-                "web-features:snapshot:ecmascript-2017"
+                "web-features:snapshot:ecmascript-2017",
+                "web-features:date"
               ],
               "support": {
                 "chrome": {
@@ -181,7 +188,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -196,7 +204,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getDate",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getdate",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -231,7 +240,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -245,7 +255,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getDay",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getday",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -280,7 +291,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -294,7 +306,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getFullYear",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getfullyear",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -329,7 +342,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -343,7 +357,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getHours",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.gethours",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -378,7 +393,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -392,7 +408,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getMilliseconds",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getmilliseconds",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -427,7 +444,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -441,7 +459,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getMinutes",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getminutes",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -476,7 +495,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -490,7 +510,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getMonth",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getmonth",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -525,7 +546,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -539,7 +561,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getSeconds",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getseconds",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -574,7 +597,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -588,7 +612,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.gettime",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -623,7 +648,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -637,7 +663,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.gettimezoneoffset",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -672,7 +699,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -686,7 +714,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDate",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getutcdate",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -721,7 +750,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -735,7 +765,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDay",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getutcday",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -770,7 +801,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -784,7 +816,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCFullYear",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getutcfullyear",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -819,7 +852,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -833,7 +867,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCHours",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getutchours",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -868,7 +903,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -882,7 +918,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMilliseconds",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getutcmilliseconds",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -917,7 +954,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -931,7 +969,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMinutes",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getutcminutes",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -966,7 +1005,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -980,7 +1020,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMonth",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getutcmonth",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1015,7 +1056,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1029,7 +1071,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCSeconds",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.getutcseconds",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1064,7 +1107,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1113,7 +1157,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1127,7 +1172,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/now",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.now",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1162,7 +1208,8 @@
                 "version_added": "4"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1176,7 +1223,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/parse",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.parse",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1211,7 +1259,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1223,7 +1272,8 @@
             "__compat": {
               "description": "ISO 8601 format",
               "tags": [
-                "web-features:snapshot:ecmascript-5"
+                "web-features:snapshot:ecmascript-5",
+                "web-features:date"
               ],
               "support": {
                 "chrome": {
@@ -1260,7 +1310,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1275,7 +1326,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setDate",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setdate",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1310,7 +1362,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1324,7 +1377,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setFullYear",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setfullyear",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1359,7 +1413,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1373,7 +1428,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setHours",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.sethours",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1408,7 +1464,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1422,7 +1479,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setMilliseconds",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setmilliseconds",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1457,7 +1515,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1471,7 +1530,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setMinutes",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setminutes",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1506,7 +1566,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1520,7 +1581,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setMonth",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setmonth",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1555,7 +1617,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1569,7 +1632,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setSeconds",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setseconds",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1604,7 +1668,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1618,7 +1683,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setTime",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.settime",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1653,7 +1719,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1667,7 +1734,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCDate",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setutcdate",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1702,7 +1770,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1716,7 +1785,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCFullYear",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setutcfullyear",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1751,7 +1821,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1765,7 +1836,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCHours",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setutchours",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1800,7 +1872,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1814,7 +1887,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMilliseconds",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setutcmilliseconds",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1849,7 +1923,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1863,7 +1938,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMinutes",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setutcminutes",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1898,7 +1974,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1912,7 +1989,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMonth",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setutcmonth",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1947,7 +2025,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1961,7 +2040,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCSeconds",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.setutcseconds",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -1996,7 +2076,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2045,7 +2126,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2059,7 +2141,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/toDateString",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.todatestring",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -2094,7 +2177,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2143,7 +2227,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2157,7 +2242,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.toisostring",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -2194,7 +2280,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2208,7 +2295,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/toJSON",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.tojson",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -2245,7 +2333,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2262,7 +2351,8 @@
               "https://tc39.es/ecma402/#sup-date.prototype.tolocaledatestring"
             ],
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:intl"
             ],
             "support": {
               "chrome": {
@@ -2297,7 +2387,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2307,7 +2398,10 @@
           },
           "iana_time_zone_names": {
             "__compat": {
-              "description": "IANA time zone names in <code>timeZone</code> option",
+              "description": "IANA time zone names in `timeZone` option",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2339,7 +2433,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2350,7 +2445,10 @@
           },
           "locales_parameter": {
             "__compat": {
-              "description": "<code>locales</code> parameter",
+              "description": "`locales` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2364,7 +2462,7 @@
                     "version_added": "1.0",
                     "version_removed": "1.8",
                     "partial_implementation": true,
-                    "notes": "Only the locale data for <code>en-US</code> is available."
+                    "notes": "Only the locale data for `en-US` is available."
                   }
                 ],
                 "edge": {
@@ -2386,7 +2484,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the function silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the function silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -2397,7 +2495,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2408,7 +2507,10 @@
           },
           "options_parameter": {
             "__compat": {
-              "description": "<code>options</code> parameter",
+              "description": "`options` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2440,7 +2542,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2458,7 +2561,8 @@
               "https://tc39.es/ecma402/#sup-date.prototype.tolocalestring"
             ],
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:intl"
             ],
             "support": {
               "chrome": {
@@ -2493,7 +2597,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2503,7 +2608,10 @@
           },
           "iana_time_zone_names": {
             "__compat": {
-              "description": "IANA time zone names in <code>timeZone</code> option",
+              "description": "IANA time zone names in `timeZone` option",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2535,7 +2643,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2546,7 +2655,10 @@
           },
           "locales_parameter": {
             "__compat": {
-              "description": "<code>locales</code> parameter",
+              "description": "`locales` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2560,7 +2672,7 @@
                     "version_added": "1.0",
                     "version_removed": "1.8",
                     "partial_implementation": true,
-                    "notes": "Only the locale data for <code>en-US</code> is available."
+                    "notes": "Only the locale data for `en-US` is available."
                   }
                 ],
                 "edge": {
@@ -2582,7 +2694,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the function silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the function silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -2593,7 +2705,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2604,7 +2717,10 @@
           },
           "options_parameter": {
             "__compat": {
-              "description": "<code>options</code> parameter",
+              "description": "`options` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2636,7 +2752,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2654,7 +2771,8 @@
               "https://tc39.es/ecma402/#sup-date.prototype.tolocaletimestring"
             ],
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:intl"
             ],
             "support": {
               "chrome": {
@@ -2689,7 +2807,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2699,7 +2818,10 @@
           },
           "iana_time_zone_names": {
             "__compat": {
-              "description": "IANA time zone names in <code>timeZone</code> option",
+              "description": "IANA time zone names in `timeZone` option",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2731,7 +2853,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2742,7 +2865,10 @@
           },
           "locales_parameter": {
             "__compat": {
-              "description": "<code>locales</code> parameter",
+              "description": "`locales` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2756,7 +2882,7 @@
                     "version_added": "1.0",
                     "version_removed": "1.8",
                     "partial_implementation": true,
-                    "notes": "Only the locale data for <code>en-US</code> is available."
+                    "notes": "Only the locale data for `en-US` is available."
                   }
                 ],
                 "edge": {
@@ -2778,7 +2904,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the function silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the function silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -2789,7 +2915,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2800,7 +2927,10 @@
           },
           "options_parameter": {
             "__compat": {
-              "description": "<code>options</code> parameter",
+              "description": "`options` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -2832,7 +2962,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2847,7 +2978,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/toString",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.tostring",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -2882,7 +3014,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2896,7 +3029,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/toTimeString",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.totimestring",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -2931,7 +3065,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2945,7 +3080,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/toUTCString",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.toutcstring",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -2980,7 +3116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2994,7 +3131,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/valueOf",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype.valueof",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -3029,7 +3167,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -3044,7 +3183,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date/Symbol.toPrimitive",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date.prototype-%symbol.toprimitive%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:date"
             ],
             "support": {
               "chrome": {
@@ -3075,7 +3215,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Error.json b/javascript/builtins/Error.json
index 3e0e68887a5f50..2ba6fa358fe036 100644
--- a/javascript/builtins/Error.json
+++ b/javascript/builtins/Error.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Error",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-error-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "Error": {
           "__compat": {
-            "description": "<code>Error()</code> constructor",
+            "description": "`Error()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Error/Error",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-error-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,7 +104,7 @@
           },
           "fileName_parameter": {
             "__compat": {
-              "description": "<code>fileName</code> parameter",
+              "description": "`fileName` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -128,7 +132,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -139,7 +144,7 @@
           },
           "lineNumber_parameter": {
             "__compat": {
-              "description": "<code>lineNumber</code> parameter",
+              "description": "`lineNumber` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -167,7 +172,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -178,10 +184,11 @@
           },
           "options_cause_parameter": {
             "__compat": {
-              "description": "<code>options.cause</code> parameter",
+              "description": "`options.cause` parameter",
               "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-installerrorcause",
               "tags": [
-                "web-features:snapshot:ecmascript-2022"
+                "web-features:snapshot:ecmascript-2022",
+                "web-features:error-cause"
               ],
               "support": {
                 "chrome": {
@@ -210,7 +217,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -225,7 +233,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Error/cause",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-installerrorcause",
             "tags": [
-              "web-features:snapshot:ecmascript-2022"
+              "web-features:snapshot:ecmascript-2022",
+              "web-features:error-cause"
             ],
             "support": {
               "chrome": {
@@ -254,7 +263,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -267,8 +277,7 @@
               "description": "Cause is displayed in console",
               "support": {
                 "chrome": {
-                  "version_added": false,
-                  "impl_url": "https://crbug.com/1211260"
+                  "version_added": "125"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -293,7 +302,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -333,7 +343,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -372,7 +383,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -411,7 +423,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -425,7 +438,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Error/message",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-error.prototype.message",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -460,7 +474,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -474,7 +489,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Error/name",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-error.prototype.name",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -509,7 +525,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -520,9 +537,12 @@
         },
         "serializable_object": {
           "__compat": {
-            "description": "<code>Error</code> is serializable",
+            "description": "`Error` is serializable",
             "mdn_url": "https://developer.mozilla.org/docs/Glossary/Serializable_object",
             "spec_url": "https://html.spec.whatwg.org/multipage/structured-data.html#serializable-objects",
+            "tags": [
+              "web-features:serializable-errors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -535,9 +555,9 @@
               "firefox": {
                 "version_added": "103",
                 "notes": [
-                  "Version 103 serialized properties: <code>name</code>, <code>message</code>, <code>cause</code>, <code>fileName</code>, <code>lineNumber</code> and <code>columnNumber</code>.",
-                  "Version 104 adds serialization of <code>stack</code> in the main thread (<a href='https://developer.mozilla.org/docs/Web/API/Window/postMessage'><code>window.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>).",
-                  "Version 110 adds serialization of <code>stack</code> in workers (<a href='https://developer.mozilla.org/docs/Web/API/Worker/postMessage'><code>worker.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>)."
+                  "Version 103 serialized properties: `name`, `message`, `cause`, `fileName`, `lineNumber` and `columnNumber`.",
+                  "Version 104 adds serialization of `stack` in the main thread ([`window.postMessage()`](https://developer.mozilla.org/docs/Web/API/Window/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone)).",
+                  "Version 110 adds serialization of `stack` in workers ([`worker.postMessage()`](https://developer.mozilla.org/docs/Web/API/Worker/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone))."
                 ]
               },
               "firefox_android": "mirror",
@@ -555,7 +575,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -602,7 +623,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -616,7 +638,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Error/toString",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-error.prototype.tostring",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -651,7 +674,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/EvalError.json b/javascript/builtins/EvalError.json
index 138b326761a88d..b548afe3d940b9 100644
--- a/javascript/builtins/EvalError.json
+++ b/javascript/builtins/EvalError.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/EvalError",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-native-error-types-used-in-this-standard-evalerror",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "EvalError": {
           "__compat": {
-            "description": "<code>EvalError()</code> constructor",
+            "description": "`EvalError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/EvalError/EvalError",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-nativeerror-constructors",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -101,9 +105,12 @@
         },
         "serializable_object": {
           "__compat": {
-            "description": "<code>EvalError</code> is serializable",
+            "description": "`EvalError` is serializable",
             "mdn_url": "https://developer.mozilla.org/docs/Glossary/Serializable_object",
             "spec_url": "https://html.spec.whatwg.org/multipage/structured-data.html#serializable-objects",
+            "tags": [
+              "web-features:serializable-errors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -116,9 +123,9 @@
               "firefox": {
                 "version_added": "103",
                 "notes": [
-                  "Version 103 serializable properties: <code>name</code>, <code>message</code>, <code>cause</code>, <code>fileName</code>, <code>lineNumber</code> and <code>columnNumber</code>.",
-                  "Version 104 also serializes <code>stack</code> in the main thread (<a href='https://developer.mozilla.org/docs/Web/API/Window/postMessage'><code>window.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>).",
-                  "Version 110 also serializes <code>stack</code> in workers (<a href='https://developer.mozilla.org/docs/Web/API/Worker/postMessage'><code>worker.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>)."
+                  "Version 103 serializable properties: `name`, `message`, `cause`, `fileName`, `lineNumber` and `columnNumber`.",
+                  "Version 104 also serializes `stack` in the main thread ([`window.postMessage()`](https://developer.mozilla.org/docs/Web/API/Window/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone)).",
+                  "Version 110 also serializes `stack` in workers ([`worker.postMessage()`](https://developer.mozilla.org/docs/Web/API/Worker/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone))."
                 ]
               },
               "firefox_android": "mirror",
@@ -136,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/FinalizationRegistry.json b/javascript/builtins/FinalizationRegistry.json
index c5898807d72f2f..f3f04ce2b11513 100644
--- a/javascript/builtins/FinalizationRegistry.json
+++ b/javascript/builtins/FinalizationRegistry.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/FinalizationRegistry",
           "spec_url": "https://tc39.es/ecma262/multipage/managing-memory.html#sec-finalization-registry-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2021"
+            "web-features:snapshot:ecmascript-2021",
+            "web-features:weak-references"
           ],
           "support": {
             "chrome": {
@@ -35,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,11 +47,12 @@
         },
         "FinalizationRegistry": {
           "__compat": {
-            "description": "<code>FinalizationRegistry()</code> constructor",
+            "description": "`FinalizationRegistry()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/FinalizationRegistry/FinalizationRegistry",
             "spec_url": "https://tc39.es/ecma262/multipage/managing-memory.html#sec-finalization-registry-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2021"
+              "web-features:snapshot:ecmascript-2021",
+              "web-features:weak-references"
             ],
             "support": {
               "chrome": {
@@ -78,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -92,7 +96,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/FinalizationRegistry/register",
             "spec_url": "https://tc39.es/ecma262/multipage/managing-memory.html#sec-finalization-registry.prototype.register",
             "tags": [
-              "web-features:snapshot:ecmascript-2021"
+              "web-features:snapshot:ecmascript-2021",
+              "web-features:weak-references"
             ],
             "support": {
               "chrome": {
@@ -121,7 +126,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -134,7 +140,8 @@
           "__compat": {
             "description": "Non-registered symbol as target",
             "tags": [
-              "web-features:snapshot:ecmascript-2023"
+              "web-features:snapshot:ecmascript-2023",
+              "web-features:weak-references"
             ],
             "support": {
               "chrome": {
@@ -163,7 +170,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -177,7 +185,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/FinalizationRegistry/unregister",
             "spec_url": "https://tc39.es/ecma262/multipage/managing-memory.html#sec-finalization-registry.prototype.unregister",
             "tags": [
-              "web-features:snapshot:ecmascript-2021"
+              "web-features:snapshot:ecmascript-2021",
+              "web-features:weak-references"
             ],
             "support": {
               "chrome": {
@@ -206,7 +215,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Float16Array.json b/javascript/builtins/Float16Array.json
index 4100e2d77dd1e1..7b5a43338b86de 100644
--- a/javascript/builtins/Float16Array.json
+++ b/javascript/builtins/Float16Array.json
@@ -31,11 +31,12 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": false
+              "version_added": "18.2"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +46,7 @@
         },
         "Float16Array": {
           "__compat": {
-            "description": "<code>Float16Array()</code> constructor",
+            "description": "`Float16Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Float16Array/Float16Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -74,11 +75,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Float32Array.json b/javascript/builtins/Float32Array.json
index 3cd11aa7d08791..044f8eec7173b3 100644
--- a/javascript/builtins/Float32Array.json
+++ b/javascript/builtins/Float32Array.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,7 @@
         },
         "Float32Array": {
           "__compat": {
-            "description": "<code>Float32Array()</code> constructor",
+            "description": "`Float32Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Float32Array/Float32Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -100,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +152,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -161,7 +164,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Float32Array(iterable)</code>",
+              "description": "`new Float32Array(iterable)`",
               "tags": [
                 "web-features:typed-arrays",
                 "web-features:snapshot:ecmascript-2015"
@@ -195,7 +198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Float64Array.json b/javascript/builtins/Float64Array.json
index 555de7ace6a7c0..b88e5847e6df9a 100644
--- a/javascript/builtins/Float64Array.json
+++ b/javascript/builtins/Float64Array.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,7 @@
         },
         "Float64Array": {
           "__compat": {
-            "description": "<code>Float64Array()</code> constructor",
+            "description": "`Float64Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Float64Array/Float64Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -100,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +152,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -161,7 +164,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Float64Array(iterable)</code>",
+              "description": "`new Float64Array(iterable)`",
               "tags": [
                 "web-features:typed-arrays",
                 "web-features:snapshot:ecmascript-2015"
@@ -195,7 +198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Function.json b/javascript/builtins/Function.json
index b604f755918fee..79293eb7082f03 100644
--- a/javascript/builtins/Function.json
+++ b/javascript/builtins/Function.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -43,7 +44,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -53,11 +55,12 @@
         },
         "Function": {
           "__compat": {
-            "description": "<code>Function()</code> constructor",
+            "description": "`Function()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/Function",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -92,7 +95,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -106,7 +110,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/apply",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function.prototype.apply",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -141,7 +146,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -151,9 +157,10 @@
           },
           "generic_arrays_as_arguments": {
             "__compat": {
-              "description": "ES 5.1: generic array-like object as <code>arguments</code>",
+              "description": "ES 5.1: generic array-like object as `arguments`",
               "tags": [
-                "web-features:snapshot:ecmascript-5"
+                "web-features:snapshot:ecmascript-5",
+                "web-features:functions"
               ],
               "support": {
                 "chrome": {
@@ -190,7 +197,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -236,7 +244,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -250,7 +259,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function.prototype.bind",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -289,7 +299,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -303,7 +314,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/call",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function.prototype.call",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -325,7 +337,7 @@
               },
               "nodejs": {
                 "version_added": "0.10.0",
-                "notes": "When calling this method, <code>thisArg</code> does not default to the global object."
+                "notes": "When calling this method, `thisArg` does not default to the global object."
               },
               "oculus": "mirror",
               "opera": {
@@ -339,7 +351,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -386,7 +399,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -425,7 +439,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -439,7 +454,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/length",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function-instances-length",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -474,7 +490,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -486,7 +503,8 @@
             "__compat": {
               "description": "Configurable: true",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:functions"
               ],
               "support": {
                 "chrome": {
@@ -517,7 +535,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -532,7 +551,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/name",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function-instances-name",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -567,7 +587,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -579,7 +600,8 @@
             "__compat": {
               "description": "Configurable: true",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:functions"
               ],
               "support": {
                 "chrome": {
@@ -610,7 +632,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -623,7 +646,8 @@
             "__compat": {
               "description": "Inferred names on anonymous functions",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:functions"
               ],
               "support": {
                 "chrome": {
@@ -662,7 +686,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -677,7 +702,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/toString",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function.prototype.tostring",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -712,7 +738,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -722,9 +749,10 @@
           },
           "toString_revision": {
             "__compat": {
-              "description": "Implements <code>Function.prototype.toString</code> revision",
+              "description": "Implements `Function.prototype.toString` revision",
               "tags": [
-                "web-features:snapshot:ecmascript-2019"
+                "web-features:snapshot:ecmascript-2019",
+                "web-features:functions"
               ],
               "support": {
                 "chrome": {
@@ -753,7 +781,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -769,7 +798,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/Symbol.hasInstance",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function.prototype-%symbol.hasinstance%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -800,7 +830,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Generator.json b/javascript/builtins/Generator.json
index d42508b3e4097b..9e8ab154accbfe 100644
--- a/javascript/builtins/Generator.json
+++ b/javascript/builtins/Generator.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Generator",
           "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-generator-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:generators"
           ],
           "support": {
             "chrome": {
@@ -37,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -50,7 +52,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Generator/next",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-generator.prototype.next",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:generators"
             ],
             "support": {
               "chrome": {
@@ -81,7 +84,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +99,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Generator/return",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-generator.prototype.return",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:generators"
             ],
             "support": {
               "chrome": {
@@ -126,7 +131,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +146,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Generator/throw",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-generator.prototype.throw",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:generators"
             ],
             "support": {
               "chrome": {
@@ -171,7 +178,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/GeneratorFunction.json b/javascript/builtins/GeneratorFunction.json
index 8119c1327659e3..e71e259f625386 100644
--- a/javascript/builtins/GeneratorFunction.json
+++ b/javascript/builtins/GeneratorFunction.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/GeneratorFunction",
           "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-generatorfunction-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:generators"
           ],
           "support": {
             "chrome": {
@@ -37,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,11 +49,12 @@
         },
         "GeneratorFunction": {
           "__compat": {
-            "description": "<code>GeneratorFunction()</code> constructor",
+            "description": "`GeneratorFunction()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/GeneratorFunction/GeneratorFunction",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-generatorfunction-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:generators"
             ],
             "support": {
               "chrome": {
@@ -82,7 +85,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Int16Array.json b/javascript/builtins/Int16Array.json
index 5ad48ec9d8b039..0fc0dafb00d32c 100644
--- a/javascript/builtins/Int16Array.json
+++ b/javascript/builtins/Int16Array.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,7 @@
         },
         "Int16Array": {
           "__compat": {
-            "description": "<code>Int16Array()</code> constructor",
+            "description": "`Int16Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Int16Array/Int16Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -100,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +152,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -161,9 +164,10 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Int16Array(iterable)</code>",
+              "description": "`new Int16Array(iterable)`",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:typed-arrays"
               ],
               "support": {
                 "chrome": {
@@ -194,7 +198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Int32Array.json b/javascript/builtins/Int32Array.json
index e98e2a9f244799..fd5da9b49e6daa 100644
--- a/javascript/builtins/Int32Array.json
+++ b/javascript/builtins/Int32Array.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,7 @@
         },
         "Int32Array": {
           "__compat": {
-            "description": "<code>Int32Array()</code> constructor",
+            "description": "`Int32Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Int32Array/Int32Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -100,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +152,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -161,7 +164,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Int32Array(iterable)</code>",
+              "description": "`new Int32Array(iterable)`",
               "tags": [
                 "web-features:typed-arrays",
                 "web-features:snapshot:ecmascript-2015"
@@ -195,7 +198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Int8Array.json b/javascript/builtins/Int8Array.json
index f453fb727f80c9..c10f521de90237 100644
--- a/javascript/builtins/Int8Array.json
+++ b/javascript/builtins/Int8Array.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,7 @@
         },
         "Int8Array": {
           "__compat": {
-            "description": "<code>Int8Array()</code> constructor",
+            "description": "`Int8Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Int8Array/Int8Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -100,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +152,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -161,7 +164,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Int8Array(iterable)</code>",
+              "description": "`new Int8Array(iterable)`",
               "tags": [
                 "web-features:typed-arrays",
                 "web-features:snapshot:ecmascript-2015"
@@ -195,7 +198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/InternalError.json b/javascript/builtins/InternalError.json
index 8671e9ee3ae266..3b5ba14a21738f 100644
--- a/javascript/builtins/InternalError.json
+++ b/javascript/builtins/InternalError.json
@@ -31,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,7 +42,7 @@
         },
         "InternalError": {
           "__compat": {
-            "description": "<code>InternalError()</code> constructor",
+            "description": "`InternalError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/InternalError/InternalError",
             "support": {
               "chrome": {
@@ -70,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Intl.json b/javascript/builtins/Intl.json
index 2d207ed694c9eb..81e2ccc6cd1dc0 100644
--- a/javascript/builtins/Intl.json
+++ b/javascript/builtins/Intl.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl",
           "spec_url": "https://tc39.es/ecma402/#intl-object",
+          "tags": [
+            "web-features:intl"
+          ],
           "support": {
             "chrome": {
               "version_added": "24"
@@ -36,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,6 +52,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/getCanonicalLocales",
             "spec_url": "https://tc39.es/ecma402/#sec-intl.getcanonicallocales",
+            "tags": [
+              "web-features:intl"
+            ],
             "support": {
               "chrome": {
                 "version_added": "54"
@@ -79,7 +86,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -92,6 +100,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/supportedValuesOf",
             "spec_url": "https://tc39.es/ecma402/#sec-intl.supportedvaluesof",
+            "tags": [
+              "web-features:intl"
+            ],
             "support": {
               "chrome": {
                 "version_added": "99"
@@ -119,7 +130,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Intl/Collator.json b/javascript/builtins/Intl/Collator.json
index eda36f8cf733b2..53b104920f8e66 100644
--- a/javascript/builtins/Intl/Collator.json
+++ b/javascript/builtins/Intl/Collator.json
@@ -6,6 +6,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator",
             "spec_url": "https://tc39.es/ecma402/#collator-objects",
+            "tags": [
+              "web-features:intl"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -28,7 +31,7 @@
               },
               "nodejs": {
                 "version_added": "0.12.0",
-                "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/Collator'>the <code>Collator()</code> constructor</a> for more details."
+                "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `Collator()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/Collator) for more details."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -38,7 +41,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -48,9 +52,12 @@
           },
           "Collator": {
             "__compat": {
-              "description": "<code>Collator()</code> constructor",
+              "description": "`Collator()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/Collator",
               "spec_url": "https://tc39.es/ecma402/#sec-the-intl-collator-constructor",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -78,7 +85,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the <code>Collator</code> instance silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the `Collator` instance silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -89,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -99,7 +107,10 @@
             },
             "options_caseFirst_parameter": {
               "__compat": {
-                "description": "<code>options.caseFirst</code> parameter",
+                "description": "`options.caseFirst` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -131,7 +142,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -142,7 +154,10 @@
             },
             "options_collation_parameter": {
               "__compat": {
-                "description": "<code>options.collation</code> parameter",
+                "description": "`options.collation` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "86"
@@ -164,15 +179,14 @@
                   },
                   "oculus": "mirror",
                   "opera": "mirror",
-                  "opera_android": {
-                    "version_added": false
-                  },
+                  "opera_android": "mirror",
                   "safari": {
                     "version_added": "14.1"
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -183,7 +197,10 @@
             },
             "options_ignorePunctuation_parameter": {
               "__compat": {
-                "description": "<code>options.ignorePunctuation</code> parameter",
+                "description": "`options.ignorePunctuation` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -213,7 +230,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -224,7 +242,10 @@
             },
             "options_localeMatcher_parameter": {
               "__compat": {
-                "description": "<code>options.localeMatcher</code> parameter",
+                "description": "`options.localeMatcher` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -254,7 +275,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -265,7 +287,10 @@
             },
             "options_numeric_parameter": {
               "__compat": {
-                "description": "<code>options.numeric</code> parameter",
+                "description": "`options.numeric` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -295,7 +320,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -306,7 +332,10 @@
             },
             "options_sensitivity_parameter": {
               "__compat": {
-                "description": "<code>options.sensitivity</code> parameter",
+                "description": "`options.sensitivity` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -336,7 +365,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -347,7 +377,10 @@
             },
             "options_usage_parameter": {
               "__compat": {
-                "description": "<code>options.usage</code> parameter",
+                "description": "`options.usage` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -377,7 +410,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -391,6 +425,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/compare",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.collator.prototype.compare",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -413,7 +450,7 @@
                 },
                 "nodejs": {
                   "version_added": "0.12.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/Collator'>the <code>Collator()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `Collator()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/Collator) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -423,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -436,6 +474,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/resolvedOptions",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.collator.prototype.resolvedoptions",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -458,7 +499,7 @@
                 },
                 "nodejs": {
                   "version_added": "0.12.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/Collator'>the <code>Collator()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `Collator()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/Collator) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -468,7 +509,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -481,6 +523,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Collator/supportedLocalesOf",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.collator.supportedlocalesof",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -508,7 +553,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -519,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Intl/DateTimeFormat.json b/javascript/builtins/Intl/DateTimeFormat.json
index b8b022e46308be..52a66cb8cff555 100644
--- a/javascript/builtins/Intl/DateTimeFormat.json
+++ b/javascript/builtins/Intl/DateTimeFormat.json
@@ -6,6 +6,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat",
             "spec_url": "https://tc39.es/ecma402/#datetimeformat-objects",
+            "tags": [
+              "web-features:intl"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -28,7 +31,7 @@
               },
               "nodejs": {
                 "version_added": "0.12.0",
-                "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat'>the <code>DateTimeFormat()</code> constructor</a> for more details."
+                "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `DateTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat) for more details."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -38,7 +41,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -48,9 +52,12 @@
           },
           "DateTimeFormat": {
             "__compat": {
-              "description": "<code>DateTimeFormat()</code> constructor",
+              "description": "`DateTimeFormat()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat",
               "spec_url": "https://tc39.es/ecma402/#sec-intl-datetimeformat-constructor",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -78,7 +85,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the <code>DateTimeFormat</code> instance silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the `DateTimeFormat` instance silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -89,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -99,7 +107,9 @@
             },
             "IntlLegacyConstructedSymbol": {
               "__compat": {
-                "description": "Supports normative optional <code>ChainDateTimeFormat</code> behavior",
+                "description": "Supports normative optional `ChainDateTimeFormat` behavior",
+                "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat#return_value",
+                "spec_url": "https://tc39.es/ecma402/#sec-chaindatetimeformat",
                 "support": {
                   "chrome": [
                     {
@@ -108,7 +118,7 @@
                     {
                       "version_added": "57",
                       "partial_implementation": true,
-                      "notes": "The fallback symbol property has description <code>IntlFallback</code>."
+                      "notes": "The fallback symbol property has description `IntlFallback`."
                     }
                   ],
                   "chrome_android": "mirror",
@@ -132,7 +142,7 @@
                     {
                       "version_added": "8.0.0",
                       "partial_implementation": true,
-                      "notes": "The fallback symbol property has description <code>IntlFallback</code>."
+                      "notes": "The fallback symbol property has description `IntlFallback`."
                     }
                   ],
                   "oculus": "mirror",
@@ -143,7 +153,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -154,7 +165,10 @@
             },
             "locales_parameter": {
               "__compat": {
-                "description": "<code>locales</code> parameter",
+                "description": "`locales` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -182,7 +196,7 @@
                     {
                       "version_added": "0.12.0",
                       "partial_implementation": true,
-                      "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the <code>DateTimeFormat</code> instance silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                      "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the `DateTimeFormat` instance silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                     }
                   ],
                   "oculus": "mirror",
@@ -193,7 +207,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -204,7 +219,10 @@
             },
             "options_parameter": {
               "__compat": {
-                "description": "<code>options</code> parameter",
+                "description": "`options` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -236,7 +254,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -246,7 +265,10 @@
               },
               "options_calendar_parameter": {
                 "__compat": {
-                  "description": "<code>options.calendar</code> parameter",
+                  "description": "`options.calendar` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "80"
@@ -274,7 +296,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -285,7 +308,10 @@
               },
               "options_dateStyle_parameter": {
                 "__compat": {
-                  "description": "<code>options.dateStyle</code> parameter",
+                  "description": "`options.dateStyle` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "76"
@@ -313,7 +339,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -324,7 +351,10 @@
               },
               "options_dayPeriod_parameter": {
                 "__compat": {
-                  "description": "<code>options.dayPeriod</code> parameter",
+                  "description": "`options.dayPeriod` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "92"
@@ -346,15 +376,14 @@
                     },
                     "oculus": "mirror",
                     "opera": "mirror",
-                    "opera_android": {
-                      "version_added": false
-                    },
+                    "opera_android": "mirror",
                     "safari": {
                       "version_added": "14.1"
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -365,7 +394,10 @@
               },
               "options_fractionalSecondDigits_parameter": {
                 "__compat": {
-                  "description": "<code>options.fractionalSecondDigits</code> parameter",
+                  "description": "`options.fractionalSecondDigits` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "84"
@@ -393,7 +425,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -404,7 +437,10 @@
               },
               "options_hourCycle_parameter": {
                 "__compat": {
-                  "description": "<code>options.hourCycle</code> parameter",
+                  "description": "`options.hourCycle` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "73"
@@ -434,7 +470,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -445,7 +482,10 @@
               },
               "options_numberingSystem_parameter": {
                 "__compat": {
-                  "description": "<code>options.numberingSystem</code> parameter",
+                  "description": "`options.numberingSystem` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "80"
@@ -473,7 +513,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -484,7 +525,10 @@
               },
               "options_timeStyle_parameter": {
                 "__compat": {
-                  "description": "<code>options.timeStyle</code> parameter",
+                  "description": "`options.timeStyle` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "76"
@@ -512,7 +556,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -523,7 +568,10 @@
               },
               "options_timeZone_parameter": {
                 "__compat": {
-                  "description": "<code>options.timeZone</code> parameter",
+                  "description": "`options.timeZone` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -555,7 +603,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -565,7 +614,10 @@
                 },
                 "iana_time_zones": {
                   "__compat": {
-                    "description": "IANA time zone names in <code>options.timeZone</code> option",
+                    "description": "IANA time zone names in `options.timeZone` option",
+                    "tags": [
+                      "web-features:intl"
+                    ],
                     "support": {
                       "chrome": {
                         "version_added": "24"
@@ -599,7 +651,8 @@
                       "samsunginternet_android": "mirror",
                       "webview_android": {
                         "version_added": "37"
-                      }
+                      },
+                      "webview_ios": "mirror"
                     },
                     "status": {
                       "experimental": false,
@@ -611,7 +664,10 @@
               },
               "options_timeZoneName_parameter": {
                 "__compat": {
-                  "description": "<code>options.timeZoneName</code> parameter",
+                  "description": "`options.timeZoneName` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -643,7 +699,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -653,7 +710,10 @@
                 },
                 "extended_values": {
                   "__compat": {
-                    "description": "<code>shortGeneric</code>/<code>longGeneric</code>/<code>shortOffset</code>/<code>longOffset</code> as <code>options.timeZoneName</code> option",
+                    "description": "`shortGeneric`/`longGeneric`/`shortOffset`/`longOffset` as `options.timeZoneName` option",
+                    "tags": [
+                      "web-features:intl"
+                    ],
                     "support": {
                       "chrome": {
                         "version_added": "95"
@@ -681,7 +741,8 @@
                       },
                       "safari_ios": "mirror",
                       "samsunginternet_android": "mirror",
-                      "webview_android": "mirror"
+                      "webview_android": "mirror",
+                      "webview_ios": "mirror"
                     },
                     "status": {
                       "experimental": false,
@@ -697,6 +758,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/format",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.datetimeformat.prototype.format",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -719,7 +783,7 @@
                 },
                 "nodejs": {
                   "version_added": "0.12.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat'>the <code>DateTimeFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `DateTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -729,7 +793,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -742,6 +807,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/formatRange",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.datetimeformat.prototype.formatRange",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "76"
@@ -760,7 +828,7 @@
                 },
                 "nodejs": {
                   "version_added": "12.9.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat'>the <code>DateTimeFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `DateTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -770,7 +838,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -783,6 +852,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/formatRangeToParts",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.DateTimeFormat.prototype.formatRangeToParts",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "76"
@@ -801,7 +873,7 @@
                 },
                 "nodejs": {
                   "version_added": "12.9.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat'>the <code>DateTimeFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `DateTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -811,7 +883,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -824,10 +897,13 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/formatToParts",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.DateTimeFormat.prototype.formatToParts",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "57",
-                  "notes": "Before version 71, <code>formatToParts()</code> returned an object with an incorrectly cased type key of <code>dayperiod</code>. Version 71 and later use the specification defined <code>dayPeriod</code>. See <a href='https://crbug.com/865351'>bug 865351</a>."
+                  "notes": "Before version 71, `formatToParts()` returned an object with an incorrectly cased type key of `dayperiod`. Version 71 and later use the specification defined `dayPeriod`. See [bug 41402623](https://crbug.com/41402623)."
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -848,18 +924,18 @@
                 "nodejs": {
                   "version_added": "8.0.0",
                   "notes": [
-                    "Before version 12.0.0, <code>formatToParts()</code> returned an object with an incorrectly cased type key of <code>dayperiod</code>. Version 12.0.0 and later use the specification defined <code>dayPeriod</code>. See <a href='https://crbug.com/865351'>bug 865351</a>.",
-                    "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat'>the <code>DateTimeFormat()</code> constructor</a> for more details."
+                    "Before version 12.0.0, `formatToParts()` returned an object with an incorrectly cased type key of `dayperiod`. Version 12.0.0 and later use the specification defined `dayPeriod`. See [bug 41402623](https://crbug.com/41402623).",
+                    "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `DateTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat) for more details."
                   ]
                 },
                 "oculus": "mirror",
                 "opera": {
                   "version_added": "44",
-                  "notes": "Before version 58, <code>formatToParts()</code> returned an object with an incorrectly cased type key of <code>dayperiod</code>. Version 58 and later use the specification defined <code>dayPeriod</code>. See <a href='https://crbug.com/865351'>bug 865351</a>."
+                  "notes": "Before version 58, `formatToParts()` returned an object with an incorrectly cased type key of `dayperiod`. Version 58 and later use the specification defined `dayPeriod`. See [bug 41402623](https://crbug.com/41402623)."
                 },
                 "opera_android": {
                   "version_added": "43",
-                  "notes": "Before version 50, <code>formatToParts()</code> returned an object with an incorrectly cased type key of <code>dayperiod</code>. Version 50 and later use the specification defined <code>dayPeriod</code>. See <a href='https://crbug.com/865351'>bug 865351</a>."
+                  "notes": "Before version 50, `formatToParts()` returned an object with an incorrectly cased type key of `dayperiod`. Version 50 and later use the specification defined `dayPeriod`. See [bug 41402623](https://crbug.com/41402623)."
                 },
                 "safari": {
                   "version_added": "11"
@@ -867,9 +943,10 @@
                 "safari_ios": "mirror",
                 "samsunginternet_android": {
                   "version_added": "7.0",
-                  "notes": "Before version 71, <code>formatToParts()</code> returned an object with an incorrectly cased type key of <code>dayperiod</code>. Version 71 and later use the specification defined <code>dayPeriod</code>. See <a href='https://crbug.com/865351'>bug 865351</a>."
+                  "notes": "Before version 71, `formatToParts()` returned an object with an incorrectly cased type key of `dayperiod`. Version 71 and later use the specification defined `dayPeriod`. See [bug 41402623](https://crbug.com/41402623)."
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -882,6 +959,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/resolvedOptions",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.datetimeformat.prototype.resolvedoptions",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -904,7 +984,7 @@
                 },
                 "nodejs": {
                   "version_added": "0.12.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat'>the <code>DateTimeFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `DateTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -914,7 +994,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -924,7 +1005,10 @@
             },
             "computed_timezone": {
               "__compat": {
-                "description": "computed <code>timeZone</code>",
+                "description": "computed `timeZone`",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "35"
@@ -958,7 +1042,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -972,6 +1057,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/supportedLocalesOf",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.datetimeformat.supportedlocalesof",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -999,7 +1087,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -1010,7 +1098,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Intl/DisplayNames.json b/javascript/builtins/Intl/DisplayNames.json
index efb88b7b2ef674..aae20b8ad5214e 100644
--- a/javascript/builtins/Intl/DisplayNames.json
+++ b/javascript/builtins/Intl/DisplayNames.json
@@ -6,6 +6,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DisplayNames",
             "spec_url": "https://tc39.es/ecma402/#intl-displaynames-objects",
+            "tags": [
+              "web-features:intl-display-names"
+            ],
             "support": {
               "chrome": {
                 "version_added": "81"
@@ -33,7 +36,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -43,9 +47,12 @@
           },
           "DisplayNames": {
             "__compat": {
-              "description": "<code>DisplayNames()</code> constructor",
+              "description": "`DisplayNames()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DisplayNames/DisplayNames",
               "spec_url": "https://tc39.es/ecma402/#sec-intl-displaynames-constructor",
+              "tags": [
+                "web-features:intl-display-names"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "81"
@@ -73,7 +80,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -86,6 +94,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DisplayNames/of",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.DisplayNames.prototype.of",
+              "tags": [
+                "web-features:intl-display-names"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "81"
@@ -113,7 +124,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -126,6 +138,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DisplayNames/resolvedOptions",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.DisplayNames.prototype.resolvedOptions",
+              "tags": [
+                "web-features:intl-display-names"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "81"
@@ -153,7 +168,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -166,6 +182,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DisplayNames/supportedLocalesOf",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.DisplayNames.supportedLocalesOf",
+              "tags": [
+                "web-features:intl-display-names"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "81"
@@ -193,7 +212,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Intl/DurationFormat.json b/javascript/builtins/Intl/DurationFormat.json
index 83738bf360891f..2a4c2717763404 100644
--- a/javascript/builtins/Intl/DurationFormat.json
+++ b/javascript/builtins/Intl/DurationFormat.json
@@ -6,9 +6,12 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DurationFormat",
             "spec_url": "https://tc39.es/proposal-intl-duration-format/#durationformat-objects",
+            "tags": [
+              "web-features:intl-duration-format"
+            ],
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "129"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -16,7 +19,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": "preview"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -33,22 +36,26 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
           },
           "DurationFormat": {
             "__compat": {
-              "description": "<code>DurationFormat()</code> constructor",
+              "description": "`DurationFormat()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DurationFormat/DurationFormat",
               "spec_url": "https://tc39.es/proposal-intl-duration-format/#sec-intl-durationformat-constructor",
+              "tags": [
+                "web-features:intl-duration-format"
+              ],
               "support": {
                 "chrome": {
-                  "version_added": false
+                  "version_added": "129"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -56,7 +63,7 @@
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": false
+                  "version_added": "preview"
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -73,10 +80,11 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
-                "experimental": true,
+                "experimental": false,
                 "standard_track": true,
                 "deprecated": false
               }
@@ -86,9 +94,12 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DurationFormat/format",
               "spec_url": "https://tc39.es/proposal-intl-duration-format/#sec-Intl.DurationFormat.prototype.format",
+              "tags": [
+                "web-features:intl-duration-format"
+              ],
               "support": {
                 "chrome": {
-                  "version_added": false
+                  "version_added": "129"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -96,7 +107,7 @@
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": false
+                  "version_added": "preview"
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -113,10 +124,11 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
-                "experimental": true,
+                "experimental": false,
                 "standard_track": true,
                 "deprecated": false
               }
@@ -126,9 +138,12 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DurationFormat/formatToParts",
               "spec_url": "https://tc39.es/proposal-intl-duration-format/#sec-Intl.DurationFormat.prototype.formatToParts",
+              "tags": [
+                "web-features:intl-duration-format"
+              ],
               "support": {
                 "chrome": {
-                  "version_added": false
+                  "version_added": "129"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -136,7 +151,7 @@
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": false
+                  "version_added": "preview"
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -153,10 +168,11 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
-                "experimental": true,
+                "experimental": false,
                 "standard_track": true,
                 "deprecated": false
               }
@@ -166,9 +182,12 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DurationFormat/resolvedOptions",
               "spec_url": "https://tc39.es/proposal-intl-duration-format/#sec-Intl.DurationFormat.prototype.resolvedOptions",
+              "tags": [
+                "web-features:intl-duration-format"
+              ],
               "support": {
                 "chrome": {
-                  "version_added": false
+                  "version_added": "129"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -176,7 +195,7 @@
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": false
+                  "version_added": "preview"
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -193,10 +212,11 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
-                "experimental": true,
+                "experimental": false,
                 "standard_track": true,
                 "deprecated": false
               }
@@ -206,9 +226,12 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/DurationFormat/supportedLocalesOf",
               "spec_url": "https://tc39.es/proposal-intl-duration-format/#sec-Intl.DurationFormat.supportedLocalesOf",
+              "tags": [
+                "web-features:intl-duration-format"
+              ],
               "support": {
                 "chrome": {
-                  "version_added": false
+                  "version_added": "129"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -216,7 +239,7 @@
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": false
+                  "version_added": "preview"
                 },
                 "firefox_android": "mirror",
                 "ie": {
@@ -233,10 +256,11 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
-                "experimental": true,
+                "experimental": false,
                 "standard_track": true,
                 "deprecated": false
               }
diff --git a/javascript/builtins/Intl/ListFormat.json b/javascript/builtins/Intl/ListFormat.json
index 0da8ab2b4268ba..7211518fae0dfc 100644
--- a/javascript/builtins/Intl/ListFormat.json
+++ b/javascript/builtins/Intl/ListFormat.json
@@ -6,6 +6,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat",
             "spec_url": "https://tc39.es/ecma402/#listformat-objects",
+            "tags": [
+              "web-features:intl-list-format"
+            ],
             "support": {
               "chrome": {
                 "version_added": "72"
@@ -24,7 +27,7 @@
               },
               "nodejs": {
                 "version_added": "12.0.0",
-                "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat'>the <code>ListFormat()</code> constructor</a> for more details."
+                "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `ListFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat) for more details."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -37,7 +40,8 @@
                 "version_added": "14.5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -47,9 +51,12 @@
           },
           "ListFormat": {
             "__compat": {
-              "description": "<code>ListFormat()</code> constructor",
+              "description": "`ListFormat()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat",
               "spec_url": "https://tc39.es/ecma402/#sec-intl-listformat-constructor",
+              "tags": [
+                "web-features:intl-list-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "72"
@@ -73,7 +80,7 @@
                   {
                     "version_added": "12.0.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the <code>ListFormat</code> instance silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the `ListFormat` instance silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -87,7 +94,8 @@
                   "version_added": "14.5"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -100,6 +108,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/format",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.ListFormat.prototype.format",
+              "tags": [
+                "web-features:intl-list-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "72"
@@ -118,7 +129,7 @@
                 },
                 "nodejs": {
                   "version_added": "12.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat'>the <code>ListFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `ListFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -131,7 +142,8 @@
                   "version_added": "14.5"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -144,6 +156,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/formatToParts",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.ListFormat.prototype.formatToParts",
+              "tags": [
+                "web-features:intl-list-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "72"
@@ -162,7 +177,7 @@
                 },
                 "nodejs": {
                   "version_added": "12.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat'>the <code>ListFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `ListFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -175,7 +190,8 @@
                   "version_added": "14.5"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -188,6 +204,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/resolvedOptions",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.ListFormat.prototype.resolvedoptions",
+              "tags": [
+                "web-features:intl-list-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "72"
@@ -206,7 +225,7 @@
                 },
                 "nodejs": {
                   "version_added": "12.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat'>the <code>ListFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `ListFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -219,7 +238,8 @@
                   "version_added": "14.5"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -232,6 +252,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/supportedLocalesOf",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.ListFormat.supportedLocalesOf",
+              "tags": [
+                "web-features:intl-list-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "72"
@@ -255,7 +278,7 @@
                   {
                     "version_added": "12.0.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -269,7 +292,8 @@
                   "version_added": "14.5"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Intl/Locale.json b/javascript/builtins/Intl/Locale.json
index 5a92140de769c0..ebfe87f4c97d71 100644
--- a/javascript/builtins/Intl/Locale.json
+++ b/javascript/builtins/Intl/Locale.json
@@ -6,6 +6,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale",
             "spec_url": "https://tc39.es/ecma402/#locale-objects",
+            "tags": [
+              "web-features:intl-locale"
+            ],
             "support": {
               "chrome": {
                 "version_added": "74"
@@ -33,7 +36,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -43,9 +47,12 @@
           },
           "Locale": {
             "__compat": {
-              "description": "<code>Locale()</code> constructor",
+              "description": "`Locale()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/Locale",
               "spec_url": "https://tc39.es/ecma402/#sec-intl-locale-constructor",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -73,7 +80,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -86,6 +94,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/baseName",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.baseName",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -113,7 +124,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -126,6 +138,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/calendar",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.calendar",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -153,7 +168,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -166,6 +182,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/caseFirst",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.caseFirst",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -193,7 +212,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -206,6 +226,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/collation",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.collation",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -233,7 +256,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -246,12 +270,20 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getCalendars",
               "spec_url": "https://tc39.es/proposal-intl-locale-info/#sec-Intl.Locale.prototype.getCalendars",
+              "tags": [
+                "web-features:intl-locale-info"
+              ],
               "support": {
-                "chrome": {
-                  "alternative_name": "calendars",
-                  "version_added": "99",
-                  "notes": "Implemented as an accessor property."
-                },
+                "chrome": [
+                  {
+                    "version_added": "130"
+                  },
+                  {
+                    "alternative_name": "calendars",
+                    "version_added": "99",
+                    "notes": "Implemented as an accessor property."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "deno": {
                   "version_added": "1.19"
@@ -285,7 +317,8 @@
                 ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -298,12 +331,20 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getCollations",
               "spec_url": "https://tc39.es/proposal-intl-locale-info/#sec-Intl.Locale.prototype.getCollations",
+              "tags": [
+                "web-features:intl-locale-info"
+              ],
               "support": {
-                "chrome": {
-                  "alternative_name": "collations",
-                  "version_added": "99",
-                  "notes": "Implemented as an accessor property."
-                },
+                "chrome": [
+                  {
+                    "version_added": "130"
+                  },
+                  {
+                    "alternative_name": "collations",
+                    "version_added": "99",
+                    "notes": "Implemented as an accessor property."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "deno": {
                   "version_added": "1.19"
@@ -337,7 +378,8 @@
                 ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -350,12 +392,20 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getHourCycles",
               "spec_url": "https://tc39.es/proposal-intl-locale-info/#sec-Intl.Locale.prototype.getHourCycles",
+              "tags": [
+                "web-features:intl-locale-info"
+              ],
               "support": {
-                "chrome": {
-                  "alternative_name": "hourCycles",
-                  "version_added": "99",
-                  "notes": "Implemented as an accessor property."
-                },
+                "chrome": [
+                  {
+                    "version_added": "130"
+                  },
+                  {
+                    "alternative_name": "hourCycles",
+                    "version_added": "99",
+                    "notes": "Implemented as an accessor property."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "deno": {
                   "version_added": "1.19"
@@ -389,7 +439,8 @@
                 ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -402,12 +453,20 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getNumberingSystems",
               "spec_url": "https://tc39.es/proposal-intl-locale-info/#sec-Intl.Locale.prototype.getNumberingSystems",
+              "tags": [
+                "web-features:intl-locale-info"
+              ],
               "support": {
-                "chrome": {
-                  "alternative_name": "numberingSystems",
-                  "version_added": "99",
-                  "notes": "Implemented as an accessor property."
-                },
+                "chrome": [
+                  {
+                    "version_added": "130"
+                  },
+                  {
+                    "alternative_name": "numberingSystems",
+                    "version_added": "99",
+                    "notes": "Implemented as an accessor property."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "deno": {
                   "version_added": "1.19"
@@ -441,7 +500,8 @@
                 ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -454,12 +514,20 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getTextInfo",
               "spec_url": "https://tc39.es/proposal-intl-locale-info/#sec-Intl.Locale.prototype.getTextInfo",
+              "tags": [
+                "web-features:intl-locale-info"
+              ],
               "support": {
-                "chrome": {
-                  "alternative_name": "textInfo",
-                  "version_added": "99",
-                  "notes": "Implemented as an accessor property."
-                },
+                "chrome": [
+                  {
+                    "version_added": "130"
+                  },
+                  {
+                    "alternative_name": "textInfo",
+                    "version_added": "99",
+                    "notes": "Implemented as an accessor property."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "deno": {
                   "alternative_name": "textInfo",
@@ -495,7 +563,8 @@
                 ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -508,12 +577,20 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getTimeZones",
               "spec_url": "https://tc39.es/proposal-intl-locale-info/#sec-Intl.Locale.prototype.getTimeZones",
+              "tags": [
+                "web-features:intl-locale-info"
+              ],
               "support": {
-                "chrome": {
-                  "alternative_name": "timeZones",
-                  "version_added": "99",
-                  "notes": "Implemented as an accessor property."
-                },
+                "chrome": [
+                  {
+                    "version_added": "130"
+                  },
+                  {
+                    "alternative_name": "timeZones",
+                    "version_added": "99",
+                    "notes": "Implemented as an accessor property."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "deno": {
                   "version_added": "1.19"
@@ -547,7 +624,8 @@
                 ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -560,12 +638,20 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getWeekInfo",
               "spec_url": "https://tc39.es/proposal-intl-locale-info/#sec-Intl.Locale.prototype.getWeekInfo",
+              "tags": [
+                "web-features:intl-locale-info"
+              ],
               "support": {
-                "chrome": {
-                  "alternative_name": "weekInfo",
-                  "version_added": "99",
-                  "notes": "Implemented as an accessor property."
-                },
+                "chrome": [
+                  {
+                    "version_added": "130"
+                  },
+                  {
+                    "alternative_name": "weekInfo",
+                    "version_added": "99",
+                    "notes": "Implemented as an accessor property."
+                  }
+                ],
                 "chrome_android": "mirror",
                 "deno": {
                   "version_added": "1.19"
@@ -599,7 +685,8 @@
                 ],
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -612,6 +699,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/hourCycle",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.hourCycle",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -639,7 +729,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -652,6 +743,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/language",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.language",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -679,7 +773,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -692,6 +787,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/maximize",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.maximize",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -719,7 +817,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -732,6 +831,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/minimize",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.minimize",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -759,7 +861,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -772,6 +875,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/numberingSystem",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.numberingSystem",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -799,7 +905,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -812,6 +919,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/numeric",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.numeric",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -839,7 +949,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -852,6 +963,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/region",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.region",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -879,7 +993,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -892,6 +1007,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/script",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.script",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -919,7 +1037,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -932,6 +1051,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/toString",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.Locale.prototype.toString",
+              "tags": [
+                "web-features:intl-locale"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -959,7 +1081,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Intl/NumberFormat.json b/javascript/builtins/Intl/NumberFormat.json
index 2839fc42d0230a..38bf7079ecdf7e 100644
--- a/javascript/builtins/Intl/NumberFormat.json
+++ b/javascript/builtins/Intl/NumberFormat.json
@@ -6,6 +6,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat",
             "spec_url": "https://tc39.es/ecma402/#numberformat-objects",
+            "tags": [
+              "web-features:intl"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -28,7 +31,7 @@
               },
               "nodejs": {
                 "version_added": "0.12.0",
-                "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat'>the <code>NumberFormat()</code> constructor</a> for more details."
+                "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `NumberFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat) for more details."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -38,7 +41,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -48,9 +52,12 @@
           },
           "NumberFormat": {
             "__compat": {
-              "description": "<code>NumberFormat()</code> constructor",
+              "description": "`NumberFormat()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat",
               "spec_url": "https://tc39.es/ecma402/#sec-intl-numberformat-constructor",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -82,7 +89,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -92,7 +100,9 @@
             },
             "IntlLegacyConstructedSymbol": {
               "__compat": {
-                "description": "Supports normative optional <code>ChainNumberFormat</code> behavior",
+                "description": "Supports normative optional `ChainNumberFormat` behavior",
+                "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat#return_value",
+                "spec_url": "https://tc39.es/ecma402/#sec-chainnumberformat",
                 "support": {
                   "chrome": [
                     {
@@ -101,7 +111,7 @@
                     {
                       "version_added": "57",
                       "partial_implementation": true,
-                      "notes": "The fallback symbol property has description <code>IntlFallback</code>."
+                      "notes": "The fallback symbol property has description `IntlFallback`."
                     }
                   ],
                   "chrome_android": "mirror",
@@ -125,7 +135,7 @@
                     {
                       "version_added": "8.0.0",
                       "partial_implementation": true,
-                      "notes": "The fallback symbol property has description <code>IntlFallback</code>."
+                      "notes": "The fallback symbol property has description `IntlFallback`."
                     }
                   ],
                   "oculus": "mirror",
@@ -136,7 +146,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -147,7 +158,10 @@
             },
             "locales_parameter": {
               "__compat": {
-                "description": "<code>locales</code> parameter",
+                "description": "`locales` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -175,7 +189,7 @@
                     {
                       "version_added": "0.12.0",
                       "partial_implementation": true,
-                      "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the <code>NumberFormat</code> instance silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                      "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the `NumberFormat` instance silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                     }
                   ],
                   "oculus": "mirror",
@@ -186,7 +200,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -197,7 +212,10 @@
             },
             "options_parameter": {
               "__compat": {
-                "description": "<code>options</code> parameter",
+                "description": "`options` parameter",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "24"
@@ -229,7 +247,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -239,7 +258,10 @@
               },
               "options_compactDisplay_parameter": {
                 "__compat": {
-                  "description": "<code>options.compactDisplay</code> parameter",
+                  "description": "`options.compactDisplay` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "77"
@@ -267,7 +289,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -278,7 +301,10 @@
               },
               "options_currency_parameter": {
                 "__compat": {
-                  "description": "<code>options.currency</code> parameter",
+                  "description": "`options.currency` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -310,7 +336,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -321,7 +348,10 @@
               },
               "options_currencyDisplay_parameter": {
                 "__compat": {
-                  "description": "<code>options.currencyDisplay</code> parameter",
+                  "description": "`options.currencyDisplay` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "77"
@@ -352,12 +382,13 @@
                         "version_added": "10",
                         "version_removed": "14.1",
                         "partial_implementation": true,
-                        "notes": "Doesn't support <code>currencyDisplay: 'narrowSymbol'</code>."
+                        "notes": "Doesn't support `currencyDisplay: 'narrowSymbol'`."
                       }
                     ],
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -368,7 +399,10 @@
               },
               "options_currencySign_parameter": {
                 "__compat": {
-                  "description": "<code>options.currencySign</code> parameter",
+                  "description": "`options.currencySign` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "77"
@@ -396,7 +430,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -407,7 +442,10 @@
               },
               "options_localeMatcher_parameter": {
                 "__compat": {
-                  "description": "<code>options.localeMatcher</code> parameter",
+                  "description": "`options.localeMatcher` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -439,7 +477,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -450,7 +489,10 @@
               },
               "options_maximumFractionDigits_parameter": {
                 "__compat": {
-                  "description": "<code>options.maximumFractionDigits</code> parameter",
+                  "description": "`options.maximumFractionDigits` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -482,7 +524,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -493,7 +536,10 @@
               },
               "options_maximumSignificantDigits_parameter": {
                 "__compat": {
-                  "description": "<code>options.maximumSignificantDigits</code> parameter",
+                  "description": "`options.maximumSignificantDigits` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -525,7 +571,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -536,7 +583,10 @@
               },
               "options_minimumFractionDigits_parameter": {
                 "__compat": {
-                  "description": "<code>options.minimumFractionDigits</code> parameter",
+                  "description": "`options.minimumFractionDigits` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -568,7 +618,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -579,7 +630,10 @@
               },
               "options_minimumIntegerDigits_parameter": {
                 "__compat": {
-                  "description": "<code>options.minimumIntegerDigits</code> parameter",
+                  "description": "`options.minimumIntegerDigits` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -611,7 +665,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -622,7 +677,10 @@
               },
               "options_minimumSignificantDigits_parameter": {
                 "__compat": {
-                  "description": "<code>options.minimumSignificantDigits</code> parameter",
+                  "description": "`options.minimumSignificantDigits` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -654,7 +712,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -665,7 +724,10 @@
               },
               "options_notation_parameter": {
                 "__compat": {
-                  "description": "<code>options.notation</code> parameter",
+                  "description": "`options.notation` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "77"
@@ -693,7 +755,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -704,7 +767,10 @@
               },
               "options_numberingSystem_parameter": {
                 "__compat": {
-                  "description": "<code>options.numberingSystem</code> parameter",
+                  "description": "`options.numberingSystem` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -736,7 +802,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -747,7 +814,10 @@
               },
               "options_roundingIncrement_parameter": {
                 "__compat": {
-                  "description": "<code>options.roundingIncrement</code> parameter",
+                  "description": "`options.roundingIncrement` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "106"
@@ -774,7 +844,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -785,7 +856,10 @@
               },
               "options_roundingMode_parameter": {
                 "__compat": {
-                  "description": "<code>options.roundingMode</code> parameter",
+                  "description": "`options.roundingMode` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "106"
@@ -812,7 +886,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -823,7 +898,10 @@
               },
               "options_roundingPriority_parameter": {
                 "__compat": {
-                  "description": "<code>options.roundingPriority</code> parameter",
+                  "description": "`options.roundingPriority` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "106"
@@ -850,7 +928,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -861,7 +940,10 @@
               },
               "options_signDisplay_parameter": {
                 "__compat": {
-                  "description": "<code>options.signDisplay</code> parameter",
+                  "description": "`options.signDisplay` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "77"
@@ -889,7 +971,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -899,7 +982,10 @@
                 },
                 "negative": {
                   "__compat": {
-                    "description": "<code>negative</code> value",
+                    "description": "`negative` value",
+                    "tags": [
+                      "web-features:intl"
+                    ],
                     "support": {
                       "chrome": {
                         "version_added": "106"
@@ -927,7 +1013,8 @@
                       },
                       "safari_ios": "mirror",
                       "samsunginternet_android": "mirror",
-                      "webview_android": "mirror"
+                      "webview_android": "mirror",
+                      "webview_ios": "mirror"
                     },
                     "status": {
                       "experimental": false,
@@ -939,7 +1026,10 @@
               },
               "options_style_parameter": {
                 "__compat": {
-                  "description": "<code>options.style</code> parameter",
+                  "description": "`options.style` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -971,7 +1061,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -982,7 +1073,10 @@
               },
               "options_trailingZeroDisplay_parameter": {
                 "__compat": {
-                  "description": "<code>options.trailingZeroDisplay</code> parameter",
+                  "description": "`options.trailingZeroDisplay` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "106"
@@ -1009,7 +1103,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -1020,7 +1115,10 @@
               },
               "options_unit_parameter": {
                 "__compat": {
-                  "description": "<code>options.unit</code> parameter",
+                  "description": "`options.unit` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "77"
@@ -1048,7 +1146,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -1059,7 +1158,10 @@
               },
               "options_unitDisplay_parameter": {
                 "__compat": {
-                  "description": "<code>options.unitDisplay</code> parameter",
+                  "description": "`options.unitDisplay` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "77"
@@ -1087,7 +1189,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -1098,7 +1201,10 @@
               },
               "options_useGrouping_parameter": {
                 "__compat": {
-                  "description": "<code>options.useGrouping</code> parameter",
+                  "description": "`options.useGrouping` parameter",
+                  "tags": [
+                    "web-features:intl"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "24"
@@ -1126,7 +1232,7 @@
                       {
                         "version_added": "0.12.0",
                         "partial_implementation": true,
-                        "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the <code>NumberFormat</code> instance silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                        "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the `NumberFormat` instance silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                       }
                     ],
                     "opera": "mirror",
@@ -1136,7 +1242,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -1146,7 +1253,10 @@
                 },
                 "string_values": {
                   "__compat": {
-                    "description": "<code>options.useGrouping</code> parameter accepts: <code>'always'</code>, <code>'auto'</code>, <code>'min2'</code> (in addition to: <code>true</code> and <code>false</code>)",
+                    "description": "`options.useGrouping` parameter accepts: `'always'`, `'auto'`, `'min2'` (in addition to: `true` and `false`)",
+                    "tags": [
+                      "web-features:intl"
+                    ],
                     "support": {
                       "chrome": {
                         "version_added": "106"
@@ -1173,7 +1283,8 @@
                       },
                       "safari_ios": "mirror",
                       "samsunginternet_android": "mirror",
-                      "webview_android": "mirror"
+                      "webview_android": "mirror",
+                      "webview_ios": "mirror"
                     },
                     "status": {
                       "experimental": false,
@@ -1189,6 +1300,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/format",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.numberformat.prototype.format",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -1199,7 +1313,7 @@
                 },
                 "edge": {
                   "version_added": "12",
-                  "notes": "Before Edge 18, numbers are rounded to 15 decimal digits. For example, <code>new Intl.NumberFormat('en-US').format(1000000000000005)</code> returns <code>\"1,000,000,000,000,010\"</code>."
+                  "notes": "Before Edge 18, numbers are rounded to 15 decimal digits. For example, `new Intl.NumberFormat('en-US').format(1000000000000005)` returns `\"1,000,000,000,000,010\"`."
                 },
                 "firefox": {
                   "version_added": "29"
@@ -1209,11 +1323,11 @@
                 },
                 "ie": {
                   "version_added": "11",
-                  "notes": "In Internet Explorer 11, numbers are rounded to 15 decimal digits. For example, <code>new Intl.NumberFormat('en-US').format(1000000000000005)</code> returns <code>\"1,000,000,000,000,010\"</code>."
+                  "notes": "In Internet Explorer 11, numbers are rounded to 15 decimal digits. For example, `new Intl.NumberFormat('en-US').format(1000000000000005)` returns `\"1,000,000,000,000,010\"`."
                 },
                 "nodejs": {
                   "version_added": "0.12.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat'>the <code>NumberFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `NumberFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -1223,7 +1337,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1233,7 +1348,10 @@
             },
             "number_parameter-string_decimal": {
               "__compat": {
-                "description": "<code>number</code> param string value is decimal (not <code>Number</code>)",
+                "description": "`number` param string value is decimal (not `Number`)",
+                "tags": [
+                  "web-features:intl"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "106"
@@ -1261,7 +1379,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -1275,6 +1394,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/formatRange",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.numberformat.prototype.formatrange",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "106"
@@ -1302,7 +1424,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1315,6 +1438,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/formatRangeToParts",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.numberformat.prototype.formatrangetoparts",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "106"
@@ -1342,7 +1468,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1355,6 +1482,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/formatToParts",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.numberformat.prototype.formattoparts",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "64"
@@ -1375,7 +1505,7 @@
                 },
                 "nodejs": {
                   "version_added": "10.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat'>the <code>NumberFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `NumberFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -1385,7 +1515,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1398,6 +1529,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/resolvedOptions",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.numberformat.prototype.resolvedoptions",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -1420,7 +1554,7 @@
                 },
                 "nodejs": {
                   "version_added": "0.12.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat'>the <code>NumberFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `NumberFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -1430,7 +1564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1443,6 +1578,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/supportedLocalesOf",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.numberformat.supportedlocalesof",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -1470,7 +1608,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -1481,7 +1619,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Intl/PluralRules.json b/javascript/builtins/Intl/PluralRules.json
index 9c80f6b4a0d697..07bf5c7bcb4bb9 100644
--- a/javascript/builtins/Intl/PluralRules.json
+++ b/javascript/builtins/Intl/PluralRules.json
@@ -6,6 +6,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules",
             "spec_url": "https://tc39.es/ecma402/#pluralrules-objects",
+            "tags": [
+              "web-features:intl-plural-rules"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -26,7 +29,7 @@
               },
               "nodejs": {
                 "version_added": "10.0.0",
-                "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/PluralRules'>the <code>PluralRules()</code> constructor</a> for more details."
+                "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `PluralRules()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/PluralRules) for more details."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -36,7 +39,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -46,9 +50,12 @@
           },
           "PluralRules": {
             "__compat": {
-              "description": "<code>PluralRules()</code> constructor",
+              "description": "`PluralRules()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/PluralRules",
               "spec_url": "https://tc39.es/ecma402/#sec-intl-pluralrules-constructor",
+              "tags": [
+                "web-features:intl-plural-rules"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "63"
@@ -74,7 +81,7 @@
                   {
                     "version_added": "10.0.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the <code>PluralRules</code> instance silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the `PluralRules` instance silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -85,7 +92,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -95,7 +103,10 @@
             },
             "options_parameter": {
               "__compat": {
-                "description": "<code>options</code> parameter",
+                "description": "`options` parameter",
+                "tags": [
+                  "web-features:intl-plural-rules"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "106"
@@ -122,7 +133,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -132,7 +144,10 @@
               },
               "options_roundingIncrement_parameter": {
                 "__compat": {
-                  "description": "<code>options.roundingIncrement</code> parameter",
+                  "description": "`options.roundingIncrement` parameter",
+                  "tags": [
+                    "web-features:intl-plural-rules"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": false
@@ -159,7 +174,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -170,7 +186,10 @@
               },
               "options_roundingMode_parameter": {
                 "__compat": {
-                  "description": "<code>options.roundingMode</code> parameter",
+                  "description": "`options.roundingMode` parameter",
+                  "tags": [
+                    "web-features:intl-plural-rules"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "117"
@@ -197,7 +216,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -208,7 +228,10 @@
               },
               "options_roundingPriority_parameter": {
                 "__compat": {
-                  "description": "<code>options.roundingPriority</code> parameter",
+                  "description": "`options.roundingPriority` parameter",
+                  "tags": [
+                    "web-features:intl-plural-rules"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "106"
@@ -235,7 +258,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -246,7 +270,10 @@
               },
               "options_trailingZeroDisplay_parameter": {
                 "__compat": {
-                  "description": "<code>options.trailingZeroDisplay</code> parameter",
+                  "description": "`options.trailingZeroDisplay` parameter",
+                  "tags": [
+                    "web-features:intl-plural-rules"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": false
@@ -273,7 +300,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": true,
@@ -288,6 +316,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/resolvedOptions",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.pluralrules.prototype.resolvedoptions",
+              "tags": [
+                "web-features:intl-plural-rules"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "63"
@@ -308,7 +339,7 @@
                 },
                 "nodejs": {
                   "version_added": "10.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/PluralRules'>the <code>PluralRules()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `PluralRules()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/PluralRules) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -318,7 +349,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -331,6 +363,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/select",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.pluralrules.prototype.select",
+              "tags": [
+                "web-features:intl-plural-rules"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "63"
@@ -351,7 +386,7 @@
                 },
                 "nodejs": {
                   "version_added": "10.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/PluralRules'>the <code>PluralRules()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `PluralRules()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/PluralRules) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -361,7 +396,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -374,6 +410,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/selectRange",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.pluralrules.prototype.selectrange",
+              "tags": [
+                "web-features:intl-plural-rules"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "106"
@@ -401,7 +440,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -414,6 +454,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/supportedLocalesOf",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.pluralrules.supportedlocalesof",
+              "tags": [
+                "web-features:intl-plural-rules"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "63"
@@ -434,7 +477,7 @@
                 },
                 "nodejs": {
                   "version_added": "10.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/PluralRules'>the <code>PluralRules()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `PluralRules()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/PluralRules/PluralRules) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -444,7 +487,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Intl/RelativeTimeFormat.json b/javascript/builtins/Intl/RelativeTimeFormat.json
index 021e66752af07a..179b98b4a18b25 100644
--- a/javascript/builtins/Intl/RelativeTimeFormat.json
+++ b/javascript/builtins/Intl/RelativeTimeFormat.json
@@ -6,6 +6,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat",
             "spec_url": "https://tc39.es/ecma402/#relativetimeformat-objects",
+            "tags": [
+              "web-features:intl-relative-time-format"
+            ],
             "support": {
               "chrome": {
                 "version_added": "71"
@@ -24,7 +27,7 @@
               },
               "nodejs": {
                 "version_added": "12.0.0",
-                "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat'>the <code>RelativeTimeFormat()</code> constructor</a> for more details."
+                "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `RelativeTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat) for more details."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -34,7 +37,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -44,9 +48,12 @@
           },
           "RelativeTimeFormat": {
             "__compat": {
-              "description": "<code>RelativeTimeFormat()</code> constructor",
+              "description": "`RelativeTimeFormat()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat",
               "spec_url": "https://tc39.es/ecma402/#sec-intl-relativetimeformat-constructor",
+              "tags": [
+                "web-features:intl-relative-time-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "71"
@@ -74,7 +81,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -84,7 +92,10 @@
             },
             "locales_parameter": {
               "__compat": {
-                "description": "<code>locales</code> parameter",
+                "description": "`locales` parameter",
+                "tags": [
+                  "web-features:intl-relative-time-format"
+                ],
                 "support": {
                   "chrome": {
                     "version_added": "71"
@@ -108,7 +119,7 @@
                     {
                       "version_added": "12.0.0",
                       "partial_implementation": true,
-                      "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the <code>RelativeTimeFormat</code> instance silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                      "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the `RelativeTimeFormat` instance silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                     }
                   ],
                   "oculus": "mirror",
@@ -119,7 +130,8 @@
                   },
                   "safari_ios": "mirror",
                   "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
+                  "webview_android": "mirror",
+                  "webview_ios": "mirror"
                 },
                 "status": {
                   "experimental": false,
@@ -131,7 +143,10 @@
             "options_parameter": {
               "options_localeMatcher_parameter": {
                 "__compat": {
-                  "description": "<code>options.localeMatcher</code> parameter",
+                  "description": "`options.localeMatcher` parameter",
+                  "tags": [
+                    "web-features:intl-relative-time-format"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "71"
@@ -159,7 +174,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -170,7 +186,10 @@
               },
               "options_numberingSystem_parameter": {
                 "__compat": {
-                  "description": "<code>options.numberingSystem</code> parameter",
+                  "description": "`options.numberingSystem` parameter",
+                  "tags": [
+                    "web-features:intl-relative-time-format"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "71"
@@ -198,7 +217,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -209,7 +229,10 @@
               },
               "options_numeric_parameter": {
                 "__compat": {
-                  "description": "<code>options.numeric</code> parameter",
+                  "description": "`options.numeric` parameter",
+                  "tags": [
+                    "web-features:intl-relative-time-format"
+                  ],
                   "support": {
                     "chrome": {
                       "version_added": "71"
@@ -237,7 +260,8 @@
                     },
                     "safari_ios": "mirror",
                     "samsunginternet_android": "mirror",
-                    "webview_android": "mirror"
+                    "webview_android": "mirror",
+                    "webview_ios": "mirror"
                   },
                   "status": {
                     "experimental": false,
@@ -252,6 +276,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/format",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.RelativeTimeFormat.prototype.format",
+              "tags": [
+                "web-features:intl-relative-time-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "71"
@@ -270,7 +297,7 @@
                 },
                 "nodejs": {
                   "version_added": "12.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat'>the <code>RelativeTimeFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `RelativeTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -280,7 +307,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -293,6 +321,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/formatToParts",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.RelativeTimeFormat.prototype.formatToParts",
+              "tags": [
+                "web-features:intl-relative-time-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "71"
@@ -311,7 +342,7 @@
                 },
                 "nodejs": {
                   "version_added": "12.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat'>the <code>RelativeTimeFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `RelativeTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -321,7 +352,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -334,6 +366,9 @@
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/resolvedOptions",
               "spec_url": "https://tc39.es/ecma402/#sec-intl.relativetimeformat.prototype.resolvedoptions",
+              "tags": [
+                "web-features:intl-relative-time-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "71"
@@ -352,7 +387,7 @@
                 },
                 "nodejs": {
                   "version_added": "12.0.0",
-                  "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. See <a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat'>the <code>RelativeTimeFormat()</code> constructor</a> for more details."
+                  "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. See [the `RelativeTimeFormat()` constructor](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat) for more details."
                 },
                 "oculus": "mirror",
                 "opera": "mirror",
@@ -362,57 +397,23 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
                 "standard_track": true,
                 "deprecated": false
               }
-            },
-            "numberingSystem": {
-              "__compat": {
-                "support": {
-                  "chrome": {
-                    "version_added": "73"
-                  },
-                  "chrome_android": "mirror",
-                  "deno": {
-                    "version_added": "1.8"
-                  },
-                  "edge": "mirror",
-                  "firefox": {
-                    "version_added": "70"
-                  },
-                  "firefox_android": "mirror",
-                  "ie": {
-                    "version_added": false
-                  },
-                  "nodejs": {
-                    "version_added": "12.0.0"
-                  },
-                  "oculus": "mirror",
-                  "opera": "mirror",
-                  "opera_android": "mirror",
-                  "safari": {
-                    "version_added": "14"
-                  },
-                  "safari_ios": "mirror",
-                  "samsunginternet_android": "mirror",
-                  "webview_android": "mirror"
-                },
-                "status": {
-                  "experimental": false,
-                  "standard_track": true,
-                  "deprecated": false
-                }
-              }
             }
           },
           "supportedLocalesOf": {
             "__compat": {
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/supportedLocalesOf",
               "spec_url": "https://tc39.es/ecma402/#sec-Intl.RelativeTimeFormat.supportedLocalesOf",
+              "tags": [
+                "web-features:intl-relative-time-format"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "71"
@@ -436,7 +437,7 @@
                   {
                     "version_added": "12.0.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -447,7 +448,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Intl/Segmenter.json b/javascript/builtins/Intl/Segmenter.json
index 93c6d6def6211a..195ae94868c1cc 100644
--- a/javascript/builtins/Intl/Segmenter.json
+++ b/javascript/builtins/Intl/Segmenter.json
@@ -36,7 +36,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -46,7 +47,7 @@
           },
           "Segmenter": {
             "__compat": {
-              "description": "<code>Segmenter()</code> constructor",
+              "description": "`Segmenter()` constructor",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl/Segmenter/Segmenter",
               "spec_url": "https://tc39.es/ecma402/#sec-intl-segmenter-constructor",
               "tags": [
@@ -79,7 +80,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -122,7 +124,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -165,7 +168,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -208,7 +212,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Intl/Segments.json b/javascript/builtins/Intl/Segments.json
index 3100d05f5e6b28..8b8c0860579824 100644
--- a/javascript/builtins/Intl/Segments.json
+++ b/javascript/builtins/Intl/Segments.json
@@ -36,7 +36,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,7 +79,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -122,7 +124,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Iterator.json b/javascript/builtins/Iterator.json
index 2232daf21b1ce7..edc09e25891ac2 100644
--- a/javascript/builtins/Iterator.json
+++ b/javascript/builtins/Iterator.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator",
           "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-%iteratorprototype%-object",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:iterators"
           ],
           "support": {
             "chrome": {
@@ -37,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,9 +49,12 @@
         },
         "Iterator": {
           "__compat": {
-            "description": "<code>Iterator()</code> constructor",
+            "description": "`Iterator()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/Iterator",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iterator-constructor",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": {
                 "version_added": "122"
@@ -60,8 +65,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -79,10 +83,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -92,6 +97,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/drop",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.drop",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -108,8 +116,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -127,10 +134,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -140,6 +148,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/every",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.every",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -156,8 +167,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -175,10 +185,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -188,6 +199,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/filter",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.filter",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -204,8 +218,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -223,10 +236,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -236,6 +250,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/find",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.find",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -252,8 +269,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -271,10 +287,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -284,6 +301,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/flatMap",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.flatmap",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -300,8 +320,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -319,10 +338,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -332,6 +352,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/forEach",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.foreach",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -348,8 +371,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -367,10 +389,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -380,6 +403,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/from",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iterator.from",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -396,8 +422,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -415,10 +440,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -428,6 +454,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/map",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.map",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -444,8 +473,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -463,10 +491,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -476,6 +505,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/reduce",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.reduce",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -492,8 +524,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -511,10 +542,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -524,6 +556,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/some",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.some",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -540,8 +575,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -559,10 +593,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -572,6 +607,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/take",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.take",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -588,8 +626,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -607,10 +644,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -620,6 +658,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/toArray",
             "spec_url": "https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.toarray",
+            "tags": [
+              "web-features:iterator-methods"
+            ],
             "support": {
               "chrome": [
                 {
@@ -636,8 +677,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false,
-                "impl_url": "https://bugzil.la/1568906"
+                "version_added": "131"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -655,10 +695,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -670,7 +711,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Iterator/Symbol.iterator",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-%iteratorprototype%-%symbol.iterator%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:iterators"
             ],
             "support": {
               "chrome": {
@@ -691,13 +733,13 @@
                   "alternative_name": "@@iterator",
                   "version_added": "27",
                   "version_removed": "36",
-                  "notes": "A placeholder property named <code>@@iterator</code> is used."
+                  "notes": "A placeholder property named `@@iterator` is used."
                 },
                 {
                   "alternative_name": "iterator",
                   "version_added": "17",
                   "version_removed": "27",
-                  "notes": "A placeholder property named <code>iterator</code> is used."
+                  "notes": "A placeholder property named `iterator` is used."
                 }
               ],
               "firefox_android": "mirror",
@@ -715,7 +757,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/JSON.json b/javascript/builtins/JSON.json
index c089bba9409085..17428ee159febb 100644
--- a/javascript/builtins/JSON.json
+++ b/javascript/builtins/JSON.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/JSON",
           "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-json-object",
           "tags": [
-            "web-features:snapshot:ecmascript-5"
+            "web-features:snapshot:ecmascript-5",
+            "web-features:json"
           ],
           "support": {
             "chrome": {
@@ -45,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "≤37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -57,6 +59,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/JSON/isRawJSON",
             "spec_url": "https://tc39.es/proposal-json-parse-with-source/#sec-json.israwjson",
+            "tags": [
+              "web-features:json-raw"
+            ],
             "support": {
               "chrome": {
                 "version_added": "114"
@@ -84,10 +89,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -98,7 +104,8 @@
             "description": "JavaScript is a superset of JSON",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/JSON#JavaScript_and_JSON_differences",
             "tags": [
-              "web-features:snapshot:ecmascript-2019"
+              "web-features:snapshot:ecmascript-2019",
+              "web-features:json"
             ],
             "support": {
               "chrome": {
@@ -127,7 +134,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -141,7 +149,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-json.parse",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:json"
             ],
             "support": {
               "chrome": {
@@ -180,7 +189,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -190,9 +200,12 @@
           },
           "reviver_parameter_context_argument": {
             "__compat": {
-              "description": "Reviver has <code>context</code> parameter",
+              "description": "Reviver has `context` parameter",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#the_reviver_parameter",
               "spec_url": "https://tc39.es/proposal-json-parse-with-source/#sec-internalizejsonproperty",
+              "tags": [
+                "web-features:json-raw"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "114"
@@ -220,10 +233,11 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
-                "experimental": true,
+                "experimental": false,
                 "standard_track": true,
                 "deprecated": false
               }
@@ -234,6 +248,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/JSON/rawJSON",
             "spec_url": "https://tc39.es/proposal-json-parse-with-source/#sec-json.rawjson",
+            "tags": [
+              "web-features:json-raw"
+            ],
             "support": {
               "chrome": {
                 "version_added": "114"
@@ -261,10 +278,11 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -275,7 +293,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-json.stringify",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:json"
             ],
             "support": {
               "chrome": {
@@ -314,7 +333,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -326,7 +346,8 @@
             "__compat": {
               "description": "Strings are escaped to well-formed UTF-8",
               "tags": [
-                "web-features:snapshot:ecmascript-2019"
+                "web-features:snapshot:ecmascript-2019",
+                "web-features:json"
               ],
               "support": {
                 "chrome": {
@@ -357,7 +378,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Map.json b/javascript/builtins/Map.json
index 2afe5d1c5b3a64..64e6d35299e484 100644
--- a/javascript/builtins/Map.json
+++ b/javascript/builtins/Map.json
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,7 +49,7 @@
         },
         "Map": {
           "__compat": {
-            "description": "<code>Map()</code> constructor",
+            "description": "`Map()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Map/Map",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-map-constructor",
             "tags": [
@@ -84,7 +85,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -94,7 +96,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Map(iterable)</code>",
+              "description": "`new Map(iterable)`",
               "tags": [
                 "web-features:map",
                 "web-features:snapshot:ecmascript-2015"
@@ -128,7 +130,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -139,7 +142,7 @@
           },
           "null_allowed": {
             "__compat": {
-              "description": "<code>new Map(null)</code>",
+              "description": "`new Map(null)`",
               "tags": [
                 "web-features:map",
                 "web-features:snapshot:ecmascript-2015"
@@ -173,7 +176,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -220,7 +224,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -266,7 +271,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -312,7 +318,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -358,7 +365,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -404,7 +412,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -416,7 +425,7 @@
         "groupBy": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Map/groupBy",
-            "spec_url": "https://tc39.es/proposal-array-grouping/#sec-map.groupby",
+            "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-map.groupby",
             "tags": [
               "web-features:array-group"
             ],
@@ -454,7 +463,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -500,7 +510,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -545,7 +556,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -591,7 +603,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -639,7 +652,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -669,7 +683,7 @@
               },
               "firefox": {
                 "version_added": "19",
-                "notes": "From Firefox 13 to Firefox 18, the <code>size</code> property was implemented as a <code>Map.prototype.size()</code> method, this has been changed to a property in later versions conform to the ECMAScript 2015 specification."
+                "notes": "From Firefox 13 to Firefox 18, the `size` property was implemented as a `Map.prototype.size()` method, this has been changed to a property in later versions conform to the ECMAScript 2015 specification."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -686,7 +700,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -732,7 +747,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -769,13 +785,13 @@
                   "alternative_name": "@@iterator",
                   "version_added": "27",
                   "version_removed": "36",
-                  "notes": "A placeholder property named <code>@@iterator</code> is used."
+                  "notes": "A placeholder property named `@@iterator` is used."
                 },
                 {
                   "alternative_name": "iterator",
                   "version_added": "17",
                   "version_removed": "27",
-                  "notes": "A placeholder property named <code>iterator</code> is used."
+                  "notes": "A placeholder property named `iterator` is used."
                 }
               ],
               "firefox_android": "mirror",
@@ -793,7 +809,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -808,7 +825,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Map/Symbol.species",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-get-map-%symbol.species%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:map"
             ],
             "support": {
               "chrome": {
@@ -839,7 +857,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Math.json b/javascript/builtins/Math.json
index b3000fabc8a3f7..76d626cfa00ea5 100644
--- a/javascript/builtins/Math.json
+++ b/javascript/builtins/Math.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math",
           "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math-object",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -54,7 +56,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/E",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.e",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -89,7 +92,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,7 +107,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/LN10",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.ln10",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -138,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
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@@ -152,7 +158,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/LN2",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.ln2",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -187,7 +194,8 @@
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               "samsunginternet_android": "mirror",
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@@ -201,7 +209,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/LOG10E",
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             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -236,7 +245,8 @@
               },
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -250,7 +260,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/LOG2E",
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             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -285,7 +296,8 @@
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -299,7 +311,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/PI",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.pi",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -334,7 +347,8 @@
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
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@@ -348,7 +362,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/SQRT1_2",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.sqrt1_2",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -383,7 +398,8 @@
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
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@@ -397,7 +413,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/SQRT2",
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             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -432,7 +449,8 @@
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               "samsunginternet_android": "mirror",
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@@ -446,7 +464,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/abs",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.abs",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -481,7 +500,8 @@
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -495,7 +515,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/acos",
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             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -530,7 +551,8 @@
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               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -544,7 +566,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/acosh",
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             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
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@@ -575,7 +598,8 @@
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               "samsunginternet_android": "mirror",
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@@ -589,7 +613,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/asin",
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             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -624,7 +649,8 @@
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               "samsunginternet_android": "mirror",
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@@ -638,7 +664,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/asinh",
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             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
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@@ -669,7 +696,8 @@
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               "samsunginternet_android": "mirror",
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@@ -683,7 +711,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/atan",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.atan",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -718,7 +747,8 @@
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               "samsunginternet_android": "mirror",
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@@ -732,7 +762,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/atan2",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.atan2",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -767,7 +798,8 @@
               },
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
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@@ -781,7 +813,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/atanh",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.atanh",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
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@@ -812,7 +845,8 @@
               },
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -826,7 +860,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/cbrt",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.cbrt",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
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@@ -857,7 +892,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -871,7 +907,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/ceil",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.ceil",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
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@@ -906,7 +943,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
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             "status": {
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@@ -920,7 +958,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.clz32",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
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@@ -951,7 +990,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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             "status": {
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@@ -965,7 +1005,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/cos",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.cos",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -1000,7 +1041,8 @@
               },
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               "samsunginternet_android": "mirror",
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@@ -1014,7 +1056,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/cosh",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.cosh",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
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@@ -1045,7 +1088,8 @@
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -1059,7 +1103,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/exp",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.exp",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -1094,7 +1139,8 @@
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
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             "status": {
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@@ -1108,7 +1154,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/expm1",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.expm1",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
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@@ -1139,7 +1186,8 @@
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               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -1178,11 +1226,12 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
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+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
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             "status": {
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@@ -1196,7 +1245,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/floor",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.floor",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
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@@ -1231,7 +1281,8 @@
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
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             "status": {
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@@ -1245,7 +1296,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/fround",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.fround",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
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@@ -1276,7 +1328,8 @@
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               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
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             "status": {
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@@ -1290,7 +1343,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/hypot",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.hypot",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
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@@ -1321,7 +1375,8 @@
               },
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -1335,7 +1390,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/imul",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.imul",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
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@@ -1368,7 +1424,8 @@
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               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -1382,7 +1439,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/log",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.log",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -1417,7 +1475,8 @@
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               "samsunginternet_android": "mirror",
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@@ -1431,7 +1490,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/log10",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.log10",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
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@@ -1462,7 +1522,8 @@
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               "samsunginternet_android": "mirror",
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@@ -1476,7 +1537,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/log1p",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.log1p",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
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@@ -1507,7 +1569,8 @@
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               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -1521,7 +1584,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/log2",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.log2",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
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@@ -1552,7 +1616,8 @@
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               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
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@@ -1566,7 +1631,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/max",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.max",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
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@@ -1601,7 +1667,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1615,7 +1682,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/min",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.min",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1650,7 +1718,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1664,7 +1733,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/pow",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.pow",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1699,7 +1769,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1713,7 +1784,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/random",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.random",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1748,7 +1820,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1762,7 +1835,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/round",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.round",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1797,7 +1871,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1811,7 +1886,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/sign",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.sign",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1842,7 +1918,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1856,7 +1933,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/sin",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.sin",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1891,7 +1969,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1905,7 +1984,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/sinh",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.sinh",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1936,7 +2016,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1950,7 +2031,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/sqrt",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.sqrt",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1985,7 +2067,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1999,7 +2082,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/tan",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.tan",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -2034,7 +2118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2048,7 +2133,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/tanh",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.tanh",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -2079,7 +2165,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2093,7 +2180,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.trunc",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -2124,7 +2212,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Number.json b/javascript/builtins/Number.json
index 40f56297b407c6..e8d231488a82c6 100644
--- a/javascript/builtins/Number.json
+++ b/javascript/builtins/Number.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number",
           "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -54,7 +56,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/EPSILON",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.epsilon",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -85,7 +88,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -99,7 +103,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.max_safe_integer",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -130,7 +135,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,7 +150,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_VALUE",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.max_value",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -179,7 +186,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -193,7 +201,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/MIN_SAFE_INTEGER",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.min_safe_integer",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -224,7 +233,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -238,7 +248,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/MIN_VALUE",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.min_value",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -273,7 +284,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -287,7 +299,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/NaN",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.nan",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -322,7 +335,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -336,7 +350,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/NEGATIVE_INFINITY",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.negative_infinity",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -371,7 +386,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -382,11 +398,12 @@
         },
         "Number": {
           "__compat": {
-            "description": "<code>Number()</code> constructor",
+            "description": "`Number()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/Number",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -421,7 +438,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -435,7 +453,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/POSITIVE_INFINITY",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.positive_infinity",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -470,7 +489,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -484,7 +504,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/isFinite",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.isfinite",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -515,7 +536,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -529,7 +551,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.isinteger",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -560,7 +583,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -574,7 +598,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.isnan",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -605,7 +630,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -619,7 +645,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/isSafeInteger",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.issafeinteger",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -650,7 +677,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -664,7 +692,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/parseFloat",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.parsefloat",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -695,7 +724,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -709,7 +739,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/parseInt",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.parseint",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -740,7 +771,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -754,7 +786,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/toExponential",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.prototype.toexponential",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -789,7 +822,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -803,7 +837,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/toFixed",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.prototype.tofixed",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -838,7 +873,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -855,7 +891,8 @@
               "https://tc39.es/ecma402/#sup-number.prototype.tolocalestring"
             ],
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:intl"
             ],
             "support": {
               "chrome": {
@@ -867,7 +904,7 @@
               },
               "edge": {
                 "version_added": "12",
-                "notes": "Before Edge 18, numbers are rounded to 15 decimal digits. For example, <code>(1000000000000005).toLocaleString('en-US')</code> returns <code>\"1,000,000,000,000,010\"</code>."
+                "notes": "Before Edge 18, numbers are rounded to 15 decimal digits. For example, `(1000000000000005).toLocaleString('en-US')` returns `\"1,000,000,000,000,010\"`."
               },
               "firefox": {
                 "version_added": "1"
@@ -875,7 +912,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "5",
-                "notes": "In Internet Explorer 11, numbers are rounded to 15 decimal digits. For example, <code>(1000000000000005).toLocaleString('en-US')</code> returns <code>\"1,000,000,000,000,010\"</code>."
+                "notes": "In Internet Explorer 11, numbers are rounded to 15 decimal digits. For example, `(1000000000000005).toLocaleString('en-US')` returns `\"1,000,000,000,000,010\"`."
               },
               "nodejs": {
                 "version_added": "0.10.0"
@@ -892,7 +929,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -902,7 +940,10 @@
           },
           "locales_parameter": {
             "__compat": {
-              "description": "<code>locales</code> parameter",
+              "description": "`locales` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -918,7 +959,7 @@
                     "version_added": "1.0",
                     "version_removed": "1.8",
                     "partial_implementation": true,
-                    "notes": "Only the locale data for <code>en-US</code> is available."
+                    "notes": "Only the locale data for `en-US` is available."
                   }
                 ],
                 "edge": {
@@ -940,7 +981,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the function silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the function silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -951,7 +992,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -962,7 +1004,10 @@
           },
           "options_parameter": {
             "__compat": {
-              "description": "<code>options</code> parameter",
+              "description": "`options` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -996,7 +1041,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1011,7 +1057,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/toPrecision",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.prototype.toprecision",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1046,7 +1093,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1060,7 +1108,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/toString",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.prototype.tostring",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1095,7 +1144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1109,7 +1159,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/valueOf",
             "spec_url": "https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-number.prototype.valueof",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:number"
             ],
             "support": {
               "chrome": {
@@ -1144,7 +1195,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Object.json b/javascript/builtins/Object.json
index fb20946e023640..9b430bd005136c 100644
--- a/javascript/builtins/Object.json
+++ b/javascript/builtins/Object.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:object-object"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "Object": {
           "__compat": {
-            "description": "<code>Object()</code> constructor",
+            "description": "`Object()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/Object",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -104,7 +108,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.assign",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -135,7 +140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -148,6 +154,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/constructor",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.constructor",
+            "tags": [
+              "web-features:object-object"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -181,7 +190,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -195,7 +205,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.create",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -232,7 +243,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -243,7 +255,7 @@
         },
         "defineGetter": {
           "__compat": {
-            "description": "<code>__defineGetter__</code>",
+            "description": "`__defineGetter__`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/__defineGetter__",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.__defineGetter__",
             "support": {
@@ -259,7 +271,7 @@
               },
               "firefox": {
                 "version_added": "1",
-                "notes": "Starting with Firefox 48, this method can no longer be called at the global scope without any object. A <code>TypeError</code> will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case."
+                "notes": "Starting with Firefox 48, this method can no longer be called at the global scope without any object. A `TypeError` will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case."
               },
               "firefox_android": {
                 "version_added": "4"
@@ -284,7 +296,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -298,7 +311,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperties",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.defineproperties",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -335,7 +349,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -349,7 +364,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.defineproperty",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -395,7 +411,8 @@
                 "notes": "Also supported in Safari for iOS 4.2, but not on DOM objects."
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -406,7 +423,7 @@
         },
         "defineSetter": {
           "__compat": {
-            "description": "<code>__defineSetter__</code>",
+            "description": "`__defineSetter__`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/__defineSetter__",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.__defineSetter__",
             "support": {
@@ -422,7 +439,7 @@
               },
               "firefox": {
                 "version_added": "1",
-                "notes": "Starting with Firefox 48, this method can no longer be called at the global scope without any object. A <code>TypeError</code> will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case."
+                "notes": "Starting with Firefox 48, this method can no longer be called at the global scope without any object. A `TypeError` will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case."
               },
               "firefox_android": {
                 "version_added": "4"
@@ -447,7 +464,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -461,7 +479,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/entries",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.entries",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -492,7 +511,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -506,7 +526,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.freeze",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -541,7 +562,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -555,7 +577,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/fromEntries",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.fromentries",
             "tags": [
-              "web-features:snapshot:ecmascript-2019"
+              "web-features:snapshot:ecmascript-2019",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -584,7 +607,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -598,7 +622,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyDescriptor",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.getownpropertydescriptor",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -642,7 +667,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -656,7 +682,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyDescriptors",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.getownpropertydescriptors",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -687,7 +714,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -701,7 +729,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyNames",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.getownpropertynames",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -738,7 +767,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -752,7 +782,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertySymbols",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.getownpropertysymbols",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -783,7 +814,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -797,7 +829,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/getPrototypeOf",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.getprototypeof",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -834,7 +867,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -846,7 +880,7 @@
         "groupBy": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/groupBy",
-            "spec_url": "https://tc39.es/proposal-array-grouping/#sec-object.groupby",
+            "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-object.groupby",
             "tags": [
               "web-features:array-group"
             ],
@@ -884,7 +918,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -898,7 +933,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwn",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.hasown",
             "tags": [
-              "web-features:snapshot:ecmascript-2022"
+              "web-features:snapshot:ecmascript-2022",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -927,7 +963,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -941,7 +978,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.hasownproperty",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -978,7 +1016,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -992,7 +1031,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/is",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.is",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1023,7 +1063,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1037,7 +1078,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.isextensible",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1072,7 +1114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1086,7 +1129,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/isFrozen",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.isfrozen",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1121,7 +1165,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1135,7 +1180,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/isPrototypeOf",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.isprototypeof",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1172,7 +1218,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1186,7 +1233,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/isSealed",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.issealed",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1221,7 +1269,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1235,7 +1284,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/keys",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.keys",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1272,7 +1322,8 @@
                 "version_added": "5"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1283,7 +1334,7 @@
         },
         "lookupGetter": {
           "__compat": {
-            "description": "<code>__lookupGetter__</code>",
+            "description": "`__lookupGetter__`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/__lookupGetter__",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.__lookupGetter__",
             "support": {
@@ -1321,7 +1372,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1332,7 +1384,7 @@
         },
         "lookupSetter": {
           "__compat": {
-            "description": "<code>__lookupSetter__</code>",
+            "description": "`__lookupSetter__`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/__lookupSetter__",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.__lookupSetter__",
             "support": {
@@ -1370,7 +1422,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1384,7 +1437,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/preventExtensions",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.preventextensions",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1419,7 +1473,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1431,7 +1486,8 @@
             "__compat": {
               "description": "ES2015 behavior for non-object argument",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:object-object"
               ],
               "support": {
                 "chrome": {
@@ -1462,7 +1518,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1477,7 +1534,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/propertyIsEnumerable",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.propertyisenumerable",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1514,7 +1572,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1525,7 +1584,7 @@
         },
         "proto": {
           "__compat": {
-            "description": "<code>__proto__</code>",
+            "description": "`__proto__`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/proto",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.__proto__",
             "tags": [
@@ -1566,7 +1625,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1580,7 +1640,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/seal",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.seal",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1615,7 +1676,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1629,7 +1691,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/setPrototypeOf",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.setprototypeof",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1660,7 +1723,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1674,7 +1738,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/toLocaleString",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.tolocalestring",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:intl"
             ],
             "support": {
               "chrome": {
@@ -1709,7 +1774,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1720,11 +1786,12 @@
         },
         "toString": {
           "__compat": {
-            "description": "<code>toString()</code>",
+            "description": "`toString()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/toString",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.tostring",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1759,7 +1826,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1773,7 +1841,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/valueOf",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.valueof",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1808,7 +1877,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1822,7 +1892,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/values",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.values",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -1853,7 +1924,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Promise.json b/javascript/builtins/Promise.json
index 5c105dcd3567b5..f7da53b17b3397 100644
--- a/javascript/builtins/Promise.json
+++ b/javascript/builtins/Promise.json
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,7 +49,7 @@
         },
         "Promise": {
           "__compat": {
-            "description": "<code>Promise()</code> constructor",
+            "description": "`Promise()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/Promise",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise-constructor",
             "tags": [
@@ -87,7 +88,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -98,7 +100,7 @@
         },
         "all": {
           "__compat": {
-            "description": "<code>all()</code>",
+            "description": "`all()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/all",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise.all",
             "tags": [
@@ -134,7 +136,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -145,7 +148,7 @@
         },
         "allSettled": {
           "__compat": {
-            "description": "<code>allSettled()</code>",
+            "description": "`allSettled()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/allSettled",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise.allsettled",
             "tags": [
@@ -179,7 +182,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -223,7 +227,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -234,7 +239,7 @@
         },
         "catch": {
           "__compat": {
-            "description": "<code>catch()</code>",
+            "description": "`catch()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/catch",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise.prototype.catch",
             "tags": [
@@ -270,7 +275,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -281,7 +287,7 @@
         },
         "finally": {
           "__compat": {
-            "description": "<code>finally()</code>",
+            "description": "`finally()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/finally",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise.prototype.finally",
             "tags": [
@@ -317,7 +323,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -331,6 +338,9 @@
             "description": "Incumbent settings object tracking",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise#Incumbent_settings_object_tracking",
             "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#incumbent-settings-object-tracking-in-promises",
+            "tags": [
+              "web-features:promise"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -358,7 +368,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -369,7 +380,7 @@
         },
         "race": {
           "__compat": {
-            "description": "<code>race()</code>",
+            "description": "`race()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/race",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise.race",
             "tags": [
@@ -405,7 +416,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -416,7 +428,7 @@
         },
         "reject": {
           "__compat": {
-            "description": "<code>reject()</code>",
+            "description": "`reject()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/reject",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise.reject",
             "tags": [
@@ -452,7 +464,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -463,7 +476,7 @@
         },
         "resolve": {
           "__compat": {
-            "description": "<code>resolve()</code>",
+            "description": "`resolve()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/resolve",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise.resolve",
             "tags": [
@@ -499,7 +512,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -510,7 +524,7 @@
         },
         "then": {
           "__compat": {
-            "description": "<code>then()</code>",
+            "description": "`then()`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/then",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise.prototype.then",
             "tags": [
@@ -546,7 +560,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -559,6 +574,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/try",
             "spec_url": "https://tc39.es/proposal-promise-try/#sec-promise.try",
+            "tags": [
+              "web-features:promise-try"
+            ],
             "support": {
               "chrome": {
                 "version_added": "128"
@@ -569,7 +587,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": false
+                "version_added": "134"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -582,14 +600,15 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "18.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
-              "experimental": true,
+              "experimental": false,
               "standard_track": true,
               "deprecated": false
             }
@@ -598,7 +617,7 @@
         "withResolvers": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/withResolvers",
-            "spec_url": "https://tc39.es/proposal-promise-with-resolvers/#sec-promise.withResolvers",
+            "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-promise.withResolvers",
             "tags": [
               "web-features:promise-withresolvers"
             ],
@@ -629,7 +648,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -644,7 +664,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise/Symbol.species",
             "spec_url": "https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-get-promise-%symbol.species%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:promise"
             ],
             "support": {
               "chrome": {
@@ -673,7 +694,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Proxy.json b/javascript/builtins/Proxy.json
index be5464f2a2ed5f..39ff98126eb10c 100644
--- a/javascript/builtins/Proxy.json
+++ b/javascript/builtins/Proxy.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy",
           "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-proxy-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:proxy-reflect"
           ],
           "support": {
             "chrome": {
@@ -37,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,11 +49,12 @@
         },
         "Proxy": {
           "__compat": {
-            "description": "<code>Proxy()</code> constructor",
+            "description": "`Proxy()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-proxy-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -82,7 +85,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -97,7 +101,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/apply",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-call-thisargument-argumentslist",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -128,7 +133,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -142,7 +148,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/construct",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-construct-argumentslist-newtarget",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -173,7 +180,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -187,7 +195,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/defineProperty",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-defineownproperty-p-desc",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -218,7 +227,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -232,7 +242,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/deleteProperty",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-delete-p",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -263,7 +274,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -277,7 +289,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/get",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-get-p-receiver",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -308,7 +321,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -322,7 +336,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/getOwnPropertyDescriptor",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-getownproperty-p",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -353,7 +368,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -367,7 +383,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/getPrototypeOf",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-getprototypeof",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -396,7 +413,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -410,7 +428,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/has",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-hasproperty-p",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -441,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -455,7 +475,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/isExtensible",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-isextensible",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -486,7 +507,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -500,7 +522,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/ownKeys",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-ownpropertykeys",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -532,7 +555,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -546,7 +570,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/preventExtensions",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-preventextensions",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -577,7 +602,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -591,7 +617,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/set",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-set-p-v-receiver",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -622,7 +649,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -636,7 +664,8 @@
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/Proxy/setPrototypeOf",
               "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-proxy-object-internal-methods-and-internal-slots-setprototypeof-v",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:proxy-reflect"
               ],
               "support": {
                 "chrome": {
@@ -667,7 +696,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -682,7 +712,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy/revocable",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-proxy.revocable",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -713,7 +744,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/RangeError.json b/javascript/builtins/RangeError.json
index 39a591f2ca2da8..0183bbcf17e7a5 100644
--- a/javascript/builtins/RangeError.json
+++ b/javascript/builtins/RangeError.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RangeError",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-native-error-types-used-in-this-standard-rangeerror",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "RangeError": {
           "__compat": {
-            "description": "<code>RangeError()</code> constructor",
+            "description": "`RangeError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RangeError/RangeError",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-nativeerror-constructors",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -101,9 +105,12 @@
         },
         "serializable_object": {
           "__compat": {
-            "description": "<code>RangeError</code> is serializable",
+            "description": "`RangeError` is serializable",
             "mdn_url": "https://developer.mozilla.org/docs/Glossary/Serializable_object",
             "spec_url": "https://html.spec.whatwg.org/multipage/structured-data.html#serializable-objects",
+            "tags": [
+              "web-features:serializable-errors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -116,9 +123,9 @@
               "firefox": {
                 "version_added": "103",
                 "notes": [
-                  "Version 103 serializable properties: <code>name</code>, <code>message</code>, <code>cause</code>, <code>fileName</code>, <code>lineNumber</code> and <code>columnNumber</code>.",
-                  "Version 104 also serializes <code>stack</code> in the main thread (<a href='https://developer.mozilla.org/docs/Web/API/Window/postMessage'><code>window.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>).",
-                  "Version 110 also serializes <code>stack</code> in workers (<a href='https://developer.mozilla.org/docs/Web/API/Worker/postMessage'><code>worker.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>)."
+                  "Version 103 serializable properties: `name`, `message`, `cause`, `fileName`, `lineNumber` and `columnNumber`.",
+                  "Version 104 also serializes `stack` in the main thread ([`window.postMessage()`](https://developer.mozilla.org/docs/Web/API/Window/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone)).",
+                  "Version 110 also serializes `stack` in workers ([`worker.postMessage()`](https://developer.mozilla.org/docs/Web/API/Worker/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone))."
                 ]
               },
               "firefox_android": "mirror",
@@ -136,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/ReferenceError.json b/javascript/builtins/ReferenceError.json
index 1206cd7b01bc9e..cfbd416cfcc729 100644
--- a/javascript/builtins/ReferenceError.json
+++ b/javascript/builtins/ReferenceError.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-native-error-types-used-in-this-standard-referenceerror",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "ReferenceError": {
           "__compat": {
-            "description": "<code>ReferenceError()</code> constructor",
+            "description": "`ReferenceError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError/ReferenceError",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-nativeerror-constructors",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -101,9 +105,12 @@
         },
         "serializable_object": {
           "__compat": {
-            "description": "<code>ReferenceError</code> is serializable",
+            "description": "`ReferenceError` is serializable",
             "mdn_url": "https://developer.mozilla.org/docs/Glossary/Serializable_object",
             "spec_url": "https://html.spec.whatwg.org/multipage/structured-data.html#serializable-objects",
+            "tags": [
+              "web-features:serializable-errors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -116,9 +123,9 @@
               "firefox": {
                 "version_added": "103",
                 "notes": [
-                  "Version 103 serializable properties: <code>name</code>, <code>message</code>, <code>cause</code>, <code>fileName</code>, <code>lineNumber</code> and <code>columnNumber</code>.",
-                  "Version 104 also serializes <code>stack</code> in the main thread (<a href='https://developer.mozilla.org/docs/Web/API/Window/postMessage'><code>window.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>).",
-                  "Version 110 also serializes <code>stack</code> in workers (<a href='https://developer.mozilla.org/docs/Web/API/Worker/postMessage'><code>worker.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>)."
+                  "Version 103 serializable properties: `name`, `message`, `cause`, `fileName`, `lineNumber` and `columnNumber`.",
+                  "Version 104 also serializes `stack` in the main thread ([`window.postMessage()`](https://developer.mozilla.org/docs/Web/API/Window/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone)).",
+                  "Version 110 also serializes `stack` in workers ([`worker.postMessage()`](https://developer.mozilla.org/docs/Web/API/Worker/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone))."
                 ]
               },
               "firefox_android": "mirror",
@@ -136,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Reflect.json b/javascript/builtins/Reflect.json
index 258e97bc1b6879..deff53983b460f 100644
--- a/javascript/builtins/Reflect.json
+++ b/javascript/builtins/Reflect.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect",
           "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect-object",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:proxy-reflect"
           ],
           "support": {
             "chrome": {
@@ -37,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -50,7 +52,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/apply",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.apply",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -81,7 +84,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +99,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/construct",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.construct",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -126,7 +131,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +146,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/defineProperty",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.defineproperty",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -171,7 +178,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -185,7 +193,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/deleteProperty",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.deleteproperty",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -216,7 +225,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -230,7 +240,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/get",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.get",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -261,7 +272,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -275,7 +287,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/getOwnPropertyDescriptor",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.getownpropertydescriptor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -306,7 +319,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -320,7 +334,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/getPrototypeOf",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.getprototypeof",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -351,7 +366,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -365,7 +381,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/has",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.has",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -396,7 +413,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -410,7 +428,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/isExtensible",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.isextensible",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -441,7 +460,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -455,7 +475,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/ownKeys",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.ownkeys",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -486,7 +507,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -500,7 +522,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/preventExtensions",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.preventextensions",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -531,7 +554,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -545,7 +569,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/set",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.set",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -576,7 +601,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -590,7 +616,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect/setPrototypeOf",
             "spec_url": "https://tc39.es/ecma262/multipage/reflection.html#sec-reflect.setprototypeof",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:proxy-reflect"
             ],
             "support": {
               "chrome": {
@@ -621,7 +648,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/RegExp.json b/javascript/builtins/RegExp.json
index 0c5b5ff825bb33..d89404d446c5ae 100644
--- a/javascript/builtins/RegExp.json
+++ b/javascript/builtins/RegExp.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp-regular-expression-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "RegExp": {
           "__compat": {
-            "description": "<code>RegExp()</code> constructor",
+            "description": "`RegExp()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/RegExp",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -139,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -153,7 +158,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/dotAll",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.dotAll",
             "tags": [
-              "web-features:snapshot:ecmascript-2018"
+              "web-features:snapshot:ecmascript-2018",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -182,7 +188,53 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "escape": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/escape",
+            "spec_url": "https://tc39.es/proposal-regex-escaping/#sec-regexp.escape",
+            "tags": [
+              "web-features:regexp-escape"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/353856236"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "134"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -196,7 +248,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp.prototype.exec",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -231,7 +284,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -245,7 +299,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/flags",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.flags",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -278,7 +333,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -292,7 +348,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/global",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.global",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -327,7 +384,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -338,6 +396,9 @@
           "prototype_accessor": {
             "__compat": {
               "description": "Prototype accessor property (ES2015)",
+              "tags": [
+                "web-features:regexp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "48"
@@ -367,7 +428,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -382,7 +444,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/hasIndices",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.hasIndices",
             "tags": [
-              "web-features:snapshot:ecmascript-2022"
+              "web-features:snapshot:ecmascript-2022",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -411,7 +474,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -425,7 +489,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/ignoreCase",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.ignorecase",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -460,7 +525,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -471,6 +537,9 @@
           "prototype_accessor": {
             "__compat": {
               "description": "Prototype accessor property (ES2015)",
+              "tags": [
+                "web-features:regexp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "48"
@@ -500,7 +569,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -512,7 +582,7 @@
         },
         "input": {
           "__compat": {
-            "description": "<code>RegExp.input</code> (<code>$_</code>)",
+            "description": "`RegExp.input` (`$_`)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/input",
             "spec_url": "https://github.com/tc39/proposal-regexp-legacy-features/#additional-properties-of-the-regexp-constructor",
             "support": {
@@ -546,7 +616,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -560,7 +631,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-properties-of-regexp-instances",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -595,7 +667,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -606,7 +679,7 @@
         },
         "lastMatch": {
           "__compat": {
-            "description": "<code>RegExp.lastMatch</code> (<code>$&amp;</code>)",
+            "description": "`RegExp.lastMatch` (`$&amp;`)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch",
             "spec_url": "https://github.com/tc39/proposal-regexp-legacy-features/#additional-properties-of-the-regexp-constructor",
             "support": {
@@ -644,7 +717,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -655,7 +729,7 @@
         },
         "lastParen": {
           "__compat": {
-            "description": "<code>RegExp.lastParen</code> (<code>$+</code>)",
+            "description": "`RegExp.lastParen` (`$+`)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastParen",
             "spec_url": "https://github.com/tc39/proposal-regexp-legacy-features/#additional-properties-of-the-regexp-constructor",
             "support": {
@@ -693,7 +767,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -704,7 +779,7 @@
         },
         "leftContext": {
           "__compat": {
-            "description": "<code>RegExp.leftContext</code> (<code>$`</code>)",
+            "description": "`RegExp.leftContext` (`` $` ``)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/leftContext",
             "spec_url": "https://github.com/tc39/proposal-regexp-legacy-features/#additional-properties-of-the-regexp-constructor",
             "support": {
@@ -742,7 +817,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -756,7 +832,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/multiline",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.multiline",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -791,7 +868,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -802,6 +880,9 @@
           "prototype_accessor": {
             "__compat": {
               "description": "Prototype accessor property (ES2015)",
+              "tags": [
+                "web-features:regexp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "48"
@@ -831,7 +912,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -843,7 +925,7 @@
         },
         "n": {
           "__compat": {
-            "description": "<code>RegExp.$1-$9</code>",
+            "description": "`RegExp.$1-$9`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/n",
             "spec_url": "https://github.com/tc39/proposal-regexp-legacy-features/#additional-properties-of-the-regexp-constructor",
             "support": {
@@ -879,7 +961,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -890,7 +973,7 @@
         },
         "rightContext": {
           "__compat": {
-            "description": "<code>RegExp.rightContext</code> (<code>$'</code>)",
+            "description": "`RegExp.rightContext` (`$'`)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/rightContext",
             "spec_url": "https://github.com/tc39/proposal-regexp-legacy-features/#additional-properties-of-the-regexp-constructor",
             "support": {
@@ -928,7 +1011,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -942,7 +1026,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/source",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.source",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -977,7 +1062,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -988,6 +1074,9 @@
           "empty_regex_string": {
             "__compat": {
               "description": "\"(?:)\" for empty regexps",
+              "tags": [
+                "web-features:regexp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "6"
@@ -1019,7 +1108,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1030,7 +1120,10 @@
           },
           "escaping": {
             "__compat": {
-              "description": "Escaping",
+              "description": "Line breaks and slashes are escaped",
+              "tags": [
+                "web-features:regexp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "73"
@@ -1060,7 +1153,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1072,6 +1166,9 @@
           "prototype_accessor": {
             "__compat": {
               "description": "Prototype accessor property (ES2015)",
+              "tags": [
+                "web-features:regexp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "48"
@@ -1101,7 +1198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1115,6 +1213,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/sticky",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.sticky",
+            "tags": [
+              "web-features:regexp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "49"
@@ -1144,7 +1245,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1155,6 +1257,9 @@
           "anchored_sticky_flag": {
             "__compat": {
               "description": "Anchored sticky flag behavior per ES2015",
+              "tags": [
+                "web-features:regexp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "49"
@@ -1184,7 +1289,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1196,6 +1302,9 @@
           "prototype_accessor": {
             "__compat": {
               "description": "Prototype accessor property (ES2015)",
+              "tags": [
+                "web-features:regexp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "49"
@@ -1225,7 +1334,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1240,7 +1350,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/test",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp.prototype.test",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -1275,7 +1386,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1289,7 +1401,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/toString",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp.prototype.tostring",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -1324,7 +1437,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1334,7 +1448,10 @@
           },
           "escaping": {
             "__compat": {
-              "description": "Escaping",
+              "description": "Line breaks and slashes are escaped",
+              "tags": [
+                "web-features:regexp"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "73"
@@ -1364,7 +1481,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1378,6 +1496,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/unicode",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.unicode",
+            "tags": [
+              "web-features:regexp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -1409,7 +1530,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1422,6 +1544,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/unicodeSets",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp.prototype.unicodesets",
+            "tags": [
+              "web-features:regexp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "112"
@@ -1449,7 +1574,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1464,7 +1590,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/Symbol.match",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp.prototype-%symbol.match%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -1495,7 +1622,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1509,6 +1637,9 @@
             "description": "[Symbol.matchAll]",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/Symbol.matchAll",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp-prototype-%symbol.matchall%",
+            "tags": [
+              "web-features:regexp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "73"
@@ -1538,7 +1669,8 @@
               "samsunginternet_android": {
                 "version_added": "5.0"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1553,7 +1685,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/Symbol.replace",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp.prototype-%symbol.replace%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -1582,7 +1715,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1597,7 +1731,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/Symbol.search",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp.prototype-%symbol.search%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -1628,7 +1763,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1643,7 +1779,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/Symbol.species",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-get-regexp-%symbol.species%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -1674,7 +1811,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1689,7 +1827,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp/Symbol.split",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-regexp.prototype-%symbol.split%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:regexp"
             ],
             "support": {
               "chrome": {
@@ -1718,7 +1857,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Set.json b/javascript/builtins/Set.json
index f8b081d7eeb5fe..34b3a1bd9130bf 100644
--- a/javascript/builtins/Set.json
+++ b/javascript/builtins/Set.json
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,7 +49,7 @@
         },
         "Set": {
           "__compat": {
-            "description": "<code>Set()</code> constructor",
+            "description": "`Set()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Set/Set",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-set-constructor",
             "tags": [
@@ -84,7 +85,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -94,7 +96,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Set(iterable)</code>",
+              "description": "`new Set(iterable)`",
               "tags": [
                 "web-features:set",
                 "web-features:snapshot:ecmascript-2015"
@@ -128,7 +130,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -139,7 +142,7 @@
           },
           "null_allowed": {
             "__compat": {
-              "description": "<code>new Set(null)</code>",
+              "description": "`new Set(null)`",
               "tags": [
                 "web-features:set",
                 "web-features:snapshot:ecmascript-2015"
@@ -173,7 +176,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -222,7 +226,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -268,7 +273,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -314,7 +320,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -357,7 +364,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -403,7 +411,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -449,7 +458,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -495,7 +505,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -538,7 +549,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -581,7 +593,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -624,7 +637,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -667,7 +681,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -712,7 +727,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -758,7 +774,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -788,7 +805,7 @@
               },
               "firefox": {
                 "version_added": "19",
-                "notes": "From Firefox 13 to Firefox 18, the <code>size</code> property was implemented as a <code>Set.prototype.size()</code> method, this has been changed to a property in later versions conform to the ECMAScript 2015 specification."
+                "notes": "From Firefox 13 to Firefox 18, the `size` property was implemented as a `Set.prototype.size()` method, this has been changed to a property in later versions conform to the ECMAScript 2015 specification."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -805,7 +822,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -848,7 +866,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -891,7 +910,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -937,7 +957,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -974,13 +995,13 @@
                   "alternative_name": "@@iterator",
                   "version_added": "27",
                   "version_removed": "36",
-                  "notes": "A placeholder property named <code>@@iterator</code> is used."
+                  "notes": "A placeholder property named `@@iterator` is used."
                 },
                 {
                   "alternative_name": "iterator",
                   "version_added": "17",
                   "version_removed": "27",
-                  "notes": "A placeholder property named <code>iterator</code> is used."
+                  "notes": "A placeholder property named `iterator` is used."
                 }
               ],
               "firefox_android": "mirror",
@@ -998,7 +1019,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1013,7 +1035,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Set/Symbol.species",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-get-set-%symbol.species%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:set"
             ],
             "support": {
               "chrome": {
@@ -1044,7 +1067,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/SharedArrayBuffer.json b/javascript/builtins/SharedArrayBuffer.json
index 846707d31fb18e..5f0f095e8308da 100644
--- a/javascript/builtins/SharedArrayBuffer.json
+++ b/javascript/builtins/SharedArrayBuffer.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer",
           "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-sharedarraybuffer-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2017"
+            "web-features:snapshot:ecmascript-2017",
+            "web-features:shared-memory"
           ],
           "support": {
             "chrome": {
@@ -39,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": false
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,11 +51,12 @@
         },
         "SharedArrayBuffer": {
           "__compat": {
-            "description": "<code>SharedArrayBuffer()</code> constructor",
+            "description": "`SharedArrayBuffer()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer/SharedArrayBuffer",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-sharedarraybuffer-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -86,7 +89,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -96,11 +100,11 @@
           },
           "maxByteLength_option": {
             "__compat": {
-              "description": "<code>maxByteLength</code> option",
+              "description": "`maxByteLength` option",
               "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-sharedarraybuffer-constructor",
               "tags": [
                 "web-features:snapshot:ecmascript-2024",
-                "web-features:growable-sharedarraybuffer"
+                "web-features:resizable-buffers"
               ],
               "support": {
                 "chrome": {
@@ -131,7 +135,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -146,7 +151,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer/byteLength",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-sharedarraybuffer.prototype.bytelength",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -179,7 +185,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -194,7 +201,7 @@
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-sharedarraybuffer.prototype.grow",
             "tags": [
               "web-features:snapshot:ecmascript-2024",
-              "web-features:growable-sharedarraybuffer"
+              "web-features:resizable-buffers"
             ],
             "support": {
               "chrome": {
@@ -225,7 +232,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -240,7 +248,7 @@
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-sharedarraybuffer.prototype.growable",
             "tags": [
               "web-features:snapshot:ecmascript-2024",
-              "web-features:growable-sharedarraybuffer"
+              "web-features:resizable-buffers"
             ],
             "support": {
               "chrome": {
@@ -271,7 +279,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -286,7 +295,7 @@
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-get-sharedarraybuffer.prototype.maxbytelength",
             "tags": [
               "web-features:snapshot:ecmascript-2024",
-              "web-features:growable-sharedarraybuffer"
+              "web-features:resizable-buffers"
             ],
             "support": {
               "chrome": {
@@ -317,7 +326,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -331,7 +341,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer/slice",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-sharedarraybuffer.prototype.slice",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -364,7 +375,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -379,7 +391,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer/Symbol.species",
             "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-sharedarraybuffer-%symbol.species%",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:shared-memory"
             ],
             "support": {
               "chrome": {
@@ -412,7 +425,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": false
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/String.json b/javascript/builtins/String.json
index 3741affb84938d..a6b4e830cc797d 100644
--- a/javascript/builtins/String.json
+++ b/javascript/builtins/String.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:strings"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "String": {
           "__compat": {
-            "description": "<code>String()</code> constructor",
+            "description": "`String()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/String",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -119,7 +123,7 @@
               },
               "firefox": {
                 "version_added": "1",
-                "notes": "Starting with version 17, the quotation mark (\") is replaced by its HTML reference character (<code>&quot;</code>) in strings supplied for the <code>name</code> parameter."
+                "notes": "Starting with version 17, the quotation mark (\") is replaced by its HTML reference character (`&quot;`) in strings supplied for the `name` parameter."
               },
               "firefox_android": {
                 "version_added": "4"
@@ -142,7 +146,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,7 +161,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/at",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.at",
             "tags": [
-              "web-features:snapshot:ecmascript-2022"
+              "web-features:snapshot:ecmascript-2022",
+              "web-features:string-at"
             ],
             "support": {
               "chrome": {
@@ -185,7 +191,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -234,7 +241,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -283,7 +291,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -332,7 +341,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -346,7 +356,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/charAt",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.charat",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -381,7 +392,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -395,7 +407,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/charCodeAt",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.charcodeat",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -430,7 +443,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -444,7 +458,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/codePointAt",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.codepointat",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:string-codepoint"
             ],
             "support": {
               "chrome": {
@@ -475,7 +490,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -489,7 +505,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/concat",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.concat",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -524,7 +541,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -538,7 +556,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.endswith",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:string-startsends-with"
             ],
             "support": {
               "chrome": {
@@ -571,7 +590,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -620,7 +640,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -669,7 +690,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -718,7 +740,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -732,7 +755,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.fromcharcode",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -767,7 +791,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -781,7 +806,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.fromcodepoint",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:string-codepoint"
             ],
             "support": {
               "chrome": {
@@ -812,7 +838,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -826,7 +853,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/includes",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.includes",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:string-includes"
             ],
             "support": {
               "chrome": {
@@ -864,7 +892,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -878,7 +907,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/indexOf",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.indexof",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -913,7 +943,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -926,6 +957,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/isWellFormed",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.iswellformed",
+            "tags": [
+              "web-features:string-wellformed"
+            ],
             "support": {
               "chrome": {
                 "version_added": "111"
@@ -953,7 +987,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1002,7 +1037,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1016,7 +1052,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/lastIndexOf",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.lastindexof",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -1051,7 +1088,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1065,7 +1103,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/length",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-properties-of-string-instances-length",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -1100,7 +1139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1149,7 +1189,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1166,7 +1207,8 @@
               "https://tc39.es/ecma402/#sup-String.prototype.localeCompare"
             ],
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:intl"
             ],
             "support": {
               "chrome": {
@@ -1203,7 +1245,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1213,7 +1256,10 @@
           },
           "locales_parameter": {
             "__compat": {
-              "description": "<code>locales</code> parameter",
+              "description": "`locales` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -1229,7 +1275,7 @@
                     "version_added": "1.0",
                     "version_removed": "1.8",
                     "partial_implementation": true,
-                    "notes": "Only the locale data for <code>en-US</code> is available."
+                    "notes": "Only the locale data for `en-US` is available."
                   }
                 ],
                 "edge": {
@@ -1251,7 +1297,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the function silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the function silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -1266,7 +1312,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1277,7 +1324,10 @@
           },
           "options_parameter": {
             "__compat": {
-              "description": "<code>options</code> parameter",
+              "description": "`options` parameter",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "24"
@@ -1315,7 +1365,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1330,7 +1381,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/match",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.match",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -1365,7 +1417,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1379,7 +1432,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/matchAll",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.matchall",
             "tags": [
-              "web-features:snapshot:ecmascript-2020"
+              "web-features:snapshot:ecmascript-2020",
+              "web-features:string-matchall"
             ],
             "support": {
               "chrome": {
@@ -1408,7 +1462,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1422,7 +1477,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/normalize",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.normalize",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:string-normalize"
             ],
             "support": {
               "chrome": {
@@ -1453,7 +1509,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1467,7 +1524,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.padend",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:string-pad"
             ],
             "support": {
               "chrome": {
@@ -1498,7 +1556,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1512,7 +1571,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/padStart",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.padstart",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:string-pad"
             ],
             "support": {
               "chrome": {
@@ -1543,7 +1603,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1557,7 +1618,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/raw",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.raw",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:string-raw"
             ],
             "support": {
               "chrome": {
@@ -1588,7 +1650,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1602,7 +1665,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/repeat",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.repeat",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:string-repeat"
             ],
             "support": {
               "chrome": {
@@ -1639,7 +1703,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "41"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1653,7 +1718,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/replace",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.replace",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -1696,7 +1762,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1710,7 +1777,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/replaceAll",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.replaceall",
             "tags": [
-              "web-features:snapshot:ecmascript-2021"
+              "web-features:snapshot:ecmascript-2021",
+              "web-features:string-replaceall"
             ],
             "support": {
               "chrome": {
@@ -1739,7 +1807,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1753,7 +1822,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/search",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.search",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -1788,7 +1858,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1802,7 +1873,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/slice",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.slice",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -1837,7 +1909,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1886,7 +1959,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1900,7 +1974,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/split",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.split",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -1935,7 +2010,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1949,7 +2025,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.startswith",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:string-startsends-with"
             ],
             "support": {
               "chrome": {
@@ -1982,7 +2059,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2031,7 +2109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2080,7 +2159,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2129,7 +2209,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2143,7 +2224,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/substring",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.substring",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -2178,7 +2260,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2227,7 +2310,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2244,7 +2328,8 @@
               "https://tc39.es/ecma402/#sup-string.prototype.tolocalelowercase"
             ],
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:intl"
             ],
             "support": {
               "chrome": {
@@ -2279,7 +2364,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2287,8 +2373,13 @@
               "deprecated": false
             }
           },
-          "locale": {
+          "locales_parameter": {
             "__compat": {
+              "description": "`locales` parameter",
+              "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/toLocaleLowerCase#locales",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "58"
@@ -2302,7 +2393,7 @@
                     "version_added": "1.0",
                     "version_removed": "1.8",
                     "partial_implementation": true,
-                    "notes": "Only the locale data for <code>en-US</code> is available."
+                    "notes": "Only the locale data for `en-US` is available."
                   }
                 ],
                 "edge": {
@@ -2322,7 +2413,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the function silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the function silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -2333,7 +2424,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2351,7 +2443,8 @@
               "https://tc39.es/ecma402/#sup-string.prototype.tolocaleuppercase"
             ],
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:intl"
             ],
             "support": {
               "chrome": {
@@ -2386,7 +2479,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2394,8 +2488,13 @@
               "deprecated": false
             }
           },
-          "locale": {
+          "locales_parameter": {
             "__compat": {
+              "description": "`locales` parameter",
+              "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/toLocaleUpperCase#locales",
+              "tags": [
+                "web-features:intl"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "58"
@@ -2409,7 +2508,7 @@
                     "version_added": "1.0",
                     "version_removed": "1.8",
                     "partial_implementation": true,
-                    "notes": "Only the locale data for <code>en-US</code> is available."
+                    "notes": "Only the locale data for `en-US` is available."
                   }
                 ],
                 "edge": {
@@ -2429,7 +2528,7 @@
                   {
                     "version_added": "0.12.0",
                     "partial_implementation": true,
-                    "notes": "Before version 13.0.0, only the locale data for <code>en-US</code> is available by default. When other locales are specified, the function silently falls back to <code>en-US</code>. To make full ICU (locale) data available before version 13, see <a href='https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js'>Node.js documentation on the <code>--with-intl</code> option</a> and how to provide the data."
+                    "notes": "Before version 13.0.0, only the locale data for `en-US` is available by default. When other locales are specified, the function silently falls back to `en-US`. To make full ICU (locale) data available before version 13, see [Node.js documentation on the `--with-intl` option](https://nodejs.org/docs/latest/api/intl.html#intl_options_for_building_node_js) and how to provide the data."
                   }
                 ],
                 "oculus": "mirror",
@@ -2442,7 +2541,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -2457,7 +2557,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/toLowerCase",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.tolowercase",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -2492,7 +2593,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2506,7 +2608,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/toString",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.tostring",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -2541,7 +2644,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2555,7 +2659,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.touppercase",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -2590,7 +2695,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2604,7 +2710,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/toWellFormed",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.towellformed",
             "tags": [
-              "web-features:snapshot:ecmascript-2024"
+              "web-features:snapshot:ecmascript-2024",
+              "web-features:string-wellformed"
             ],
             "support": {
               "chrome": {
@@ -2633,7 +2740,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2647,7 +2755,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/trim",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.trim",
             "tags": [
-              "web-features:snapshot:ecmascript-5"
+              "web-features:snapshot:ecmascript-5",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -2686,7 +2795,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2700,7 +2810,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/trimEnd",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.trimend",
             "tags": [
-              "web-features:snapshot:ecmascript-2019"
+              "web-features:snapshot:ecmascript-2019",
+              "web-features:string-trim-startend"
             ],
             "support": {
               "chrome": [
@@ -2769,7 +2880,8 @@
                   "alternative_name": "trimRight",
                   "version_added": "≤37"
                 }
-              ]
+              ],
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2783,7 +2895,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/trimStart",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.trimstart",
             "tags": [
-              "web-features:snapshot:ecmascript-2019"
+              "web-features:snapshot:ecmascript-2019",
+              "web-features:string-trim-startend"
             ],
             "support": {
               "chrome": [
@@ -2852,7 +2965,8 @@
                   "alternative_name": "trimLeft",
                   "version_added": "≤37"
                 }
-              ]
+              ],
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2864,6 +2978,9 @@
         "unicode_code_point_escapes": {
           "__compat": {
             "description": "Unicode code point escapes \\u{xxxxxx}",
+            "tags": [
+              "web-features:strings"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -2897,7 +3014,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2911,7 +3029,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/valueOf",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype.valueof",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -2946,7 +3065,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2961,7 +3081,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Symbol.iterator",
             "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#sec-string.prototype-%symbol.iterator%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:strings"
             ],
             "support": {
               "chrome": {
@@ -2982,13 +3103,13 @@
                   "alternative_name": "@@iterator",
                   "version_added": "27",
                   "version_removed": "36",
-                  "notes": "A placeholder property named <code>@@iterator</code> is used."
+                  "notes": "A placeholder property named `@@iterator` is used."
                 },
                 {
                   "alternative_name": "iterator",
                   "version_added": "17",
                   "version_removed": "27",
-                  "notes": "A placeholder property named <code>iterator</code> is used."
+                  "notes": "A placeholder property named `iterator` is used."
                 }
               ],
               "firefox_android": "mirror",
@@ -3006,7 +3127,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Symbol.json b/javascript/builtins/Symbol.json
index 56bee909d886b6..83482d12fad0cb 100644
--- a/javascript/builtins/Symbol.json
+++ b/javascript/builtins/Symbol.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:symbol"
           ],
           "support": {
             "chrome": {
@@ -18,7 +19,7 @@
             },
             "edge": {
               "version_added": "12",
-              "notes": "Edge 12 included Symbol properties in <code>JSON.stringify()</code> output."
+              "notes": "Edge 12 included Symbol properties in `JSON.stringify()` output."
             },
             "firefox": {
               "version_added": "36"
@@ -38,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,11 +50,12 @@
         },
         "Symbol": {
           "__compat": {
-            "description": "<code>Symbol()</code> constructor",
+            "description": "`Symbol()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/Symbol",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -83,7 +86,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -97,7 +101,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/asyncIterator",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.asynciterator",
             "tags": [
-              "web-features:snapshot:ecmascript-2018"
+              "web-features:snapshot:ecmascript-2018",
+              "web-features:async-iterators"
             ],
             "support": {
               "chrome": {
@@ -126,7 +131,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -140,7 +146,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/description",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.prototype.description",
             "tags": [
-              "web-features:snapshot:ecmascript-2019"
+              "web-features:snapshot:ecmascript-2019",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -176,7 +183,8 @@
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -190,7 +198,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/for",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.for",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -221,7 +230,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -235,7 +245,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/hasInstance",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.hasinstance",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -266,7 +277,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -280,7 +292,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/isConcatSpreadable",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.isconcatspreadable",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -311,7 +324,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -325,7 +339,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/iterator",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.iterator",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -356,7 +371,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -370,7 +386,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/keyFor",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.keyfor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -401,7 +418,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -415,7 +433,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/match",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.match",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -444,7 +463,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -458,7 +478,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/matchAll",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.matchall",
             "tags": [
-              "web-features:snapshot:ecmascript-2020"
+              "web-features:snapshot:ecmascript-2020",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -487,7 +508,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -501,7 +523,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/replace",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.replace",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -530,7 +553,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -544,7 +568,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/search",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.search",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -573,7 +598,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -587,7 +613,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/species",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.species",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -618,7 +645,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -632,7 +660,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/split",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.split",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -661,7 +690,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -675,7 +705,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toPrimitive",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.toprimitive",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -706,7 +737,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -720,7 +752,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toString",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.prototype.tostring",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -751,7 +784,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -765,7 +799,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toStringTag",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.tostringtag",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -796,7 +831,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -806,10 +842,11 @@
           },
           "dom_objects": {
             "__compat": {
-              "description": "<code>toStringTag</code> available on all DOM prototype objects",
+              "description": "`toStringTag` available on all DOM prototype objects",
               "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toStringTag#toStringTag_available_on_all_DOM_prototype_objects",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:symbol"
               ],
               "support": {
                 "chrome": {
@@ -838,7 +875,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -853,7 +891,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/unscopables",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.unscopables",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -884,7 +923,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -898,7 +938,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/valueOf",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.prototype.valueof",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -929,7 +970,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -944,7 +986,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Symbol/Symbol.toPrimitive",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-symbol.prototype-%symbol.toprimitive%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:symbol"
             ],
             "support": {
               "chrome": {
@@ -975,7 +1018,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/SyntaxError.json b/javascript/builtins/SyntaxError.json
index 0d0394ffb5858d..73e51c117d82ac 100644
--- a/javascript/builtins/SyntaxError.json
+++ b/javascript/builtins/SyntaxError.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-native-error-types-used-in-this-standard-syntaxerror",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "SyntaxError": {
           "__compat": {
-            "description": "<code>SyntaxError()</code> constructor",
+            "description": "`SyntaxError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError/SyntaxError",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-nativeerror-constructors",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -101,9 +105,12 @@
         },
         "serializable_object": {
           "__compat": {
-            "description": "<code>SyntaxError</code> is serializable",
+            "description": "`SyntaxError` is serializable",
             "mdn_url": "https://developer.mozilla.org/docs/Glossary/Serializable_object",
             "spec_url": "https://html.spec.whatwg.org/multipage/structured-data.html#serializable-objects",
+            "tags": [
+              "web-features:serializable-errors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -116,9 +123,9 @@
               "firefox": {
                 "version_added": "103",
                 "notes": [
-                  "Version 103 serializable properties: <code>name</code>, <code>message</code>, <code>cause</code>, <code>fileName</code>, <code>lineNumber</code> and <code>columnNumber</code>.",
-                  "Version 104 also serializes <code>stack</code> in the main thread (<a href='https://developer.mozilla.org/docs/Web/API/Window/postMessage'><code>window.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>).",
-                  "Version 110 also serializes <code>stack</code> in workers (<a href='https://developer.mozilla.org/docs/Web/API/Worker/postMessage'><code>worker.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>)."
+                  "Version 103 serializable properties: `name`, `message`, `cause`, `fileName`, `lineNumber` and `columnNumber`.",
+                  "Version 104 also serializes `stack` in the main thread ([`window.postMessage()`](https://developer.mozilla.org/docs/Web/API/Window/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone)).",
+                  "Version 110 also serializes `stack` in workers ([`worker.postMessage()`](https://developer.mozilla.org/docs/Web/API/Worker/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone))."
                 ]
               },
               "firefox_android": "mirror",
@@ -136,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Temporal.json b/javascript/builtins/Temporal.json
index c4449dffa25947..787b5c60ae239c 100644
--- a/javascript/builtins/Temporal.json
+++ b/javascript/builtins/Temporal.json
@@ -11,7 +11,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "impl_url": "https://crbug.com/v8/11544"
+              "impl_url": "https://crbug.com/42201538"
             },
             "chrome_android": "mirror",
             "deno": {
@@ -53,7 +53,8 @@
               "version_added": false
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": true,
diff --git a/javascript/builtins/Temporal/Calendar.json b/javascript/builtins/Temporal/Calendar.json
index 124d5099de74a3..03784ada6d06c5 100644
--- a/javascript/builtins/Temporal/Calendar.json
+++ b/javascript/builtins/Temporal/Calendar.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "Calendar": {
             "__compat": {
-              "description": "<code>Calendar()</code> constructor",
+              "description": "`Calendar()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-temporal-calendar-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -95,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -113,7 +115,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -197,7 +200,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -215,7 +219,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -248,7 +252,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -266,7 +271,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -317,7 +323,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -368,7 +375,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -419,7 +427,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -571,7 +582,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -604,7 +615,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -621,7 +633,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -654,7 +666,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -672,7 +685,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -705,7 +718,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -723,7 +737,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -756,7 +770,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -774,7 +789,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -807,7 +822,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -825,7 +841,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -858,7 +874,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -876,7 +893,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -909,7 +926,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -927,7 +945,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -960,7 +978,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -978,7 +997,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1011,7 +1030,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1029,7 +1049,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1062,7 +1082,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1080,7 +1101,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1113,7 +1134,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1131,7 +1153,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1164,7 +1186,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1182,7 +1205,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1215,7 +1238,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1233,7 +1257,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1266,7 +1290,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1284,7 +1309,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1317,7 +1342,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1335,7 +1361,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1368,7 +1394,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/Temporal/Duration.json b/javascript/builtins/Temporal/Duration.json
index 16bd41c940c0ec..e7ce08807499c9 100644
--- a/javascript/builtins/Temporal/Duration.json
+++ b/javascript/builtins/Temporal/Duration.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "Duration": {
             "__compat": {
-              "description": "<code>Duration()</code> constructor",
+              "description": "`Duration()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-temporal-duration-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -95,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -113,7 +115,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -197,7 +200,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -215,7 +219,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -248,7 +252,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -266,7 +271,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -317,7 +323,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -368,7 +375,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -419,7 +427,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -572,7 +583,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -605,7 +616,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -623,7 +635,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -656,7 +668,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -674,7 +687,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -707,7 +720,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -725,7 +739,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -758,7 +772,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -776,7 +791,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -809,7 +824,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -827,7 +843,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -860,7 +876,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -878,7 +895,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -911,7 +928,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -929,7 +947,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -962,7 +980,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -980,7 +999,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1013,7 +1032,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1031,7 +1051,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1064,7 +1084,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1082,7 +1103,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1115,7 +1136,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1133,7 +1155,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1166,7 +1188,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1184,7 +1207,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1217,7 +1240,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1235,7 +1259,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1268,7 +1292,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1286,7 +1311,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1319,7 +1344,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1337,7 +1363,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1370,7 +1396,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/Temporal/Instant.json b/javascript/builtins/Temporal/Instant.json
index 7f431a5861b5f3..026a0704ebfdad 100644
--- a/javascript/builtins/Temporal/Instant.json
+++ b/javascript/builtins/Temporal/Instant.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "Instant": {
             "__compat": {
-              "description": "<code>Instant()</code> constructor",
+              "description": "`Instant()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-temporal-instant-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -95,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -113,7 +115,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -197,7 +200,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -215,7 +219,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -248,7 +252,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -266,7 +271,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -317,7 +323,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -368,7 +375,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -419,7 +427,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -572,7 +583,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -605,7 +616,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -623,7 +635,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -656,7 +668,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -674,7 +687,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -707,7 +720,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -725,7 +739,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -758,7 +772,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -776,7 +791,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -809,7 +824,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -827,7 +843,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -860,7 +876,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -878,7 +895,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -911,7 +928,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -929,7 +947,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -962,7 +980,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/Temporal/Now.json b/javascript/builtins/Temporal/Now.json
index 5988c3a6a4439a..dfd25063b4660c 100644
--- a/javascript/builtins/Temporal/Now.json
+++ b/javascript/builtins/Temporal/Now.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -61,7 +62,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -94,7 +95,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -112,7 +114,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -145,7 +147,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -163,7 +166,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -196,7 +199,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -214,7 +218,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -247,7 +251,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -265,7 +270,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -298,7 +303,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -316,7 +322,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -349,7 +355,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/Temporal/PlainDate.json b/javascript/builtins/Temporal/PlainDate.json
index eac57cf490dadf..d57445b2e68f11 100644
--- a/javascript/builtins/Temporal/PlainDate.json
+++ b/javascript/builtins/Temporal/PlainDate.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "PlainDate": {
             "__compat": {
-              "description": "<code>PlainDate()</code> constructor",
+              "description": "`PlainDate()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-temporal-plaindate-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -95,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -113,7 +115,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -197,7 +200,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -215,7 +219,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -248,7 +252,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -266,7 +271,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -317,7 +323,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -368,7 +375,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -419,7 +427,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -572,7 +583,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -605,7 +616,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -622,7 +634,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -655,7 +667,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -672,7 +685,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -705,7 +718,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -723,7 +737,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -756,7 +770,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -774,7 +789,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -807,7 +822,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -825,7 +841,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -858,7 +874,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -876,7 +893,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -909,7 +926,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -927,7 +945,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -960,7 +978,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -978,7 +997,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1011,7 +1030,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1029,7 +1049,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1062,7 +1082,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1080,7 +1101,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1113,7 +1134,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1131,7 +1153,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1164,7 +1186,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1182,7 +1205,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1215,7 +1238,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1233,7 +1257,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1266,7 +1290,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1284,7 +1309,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1317,7 +1342,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1335,7 +1361,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1368,7 +1394,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1386,7 +1413,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1419,7 +1446,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1437,7 +1465,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1470,7 +1498,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1488,7 +1517,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1521,7 +1550,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1539,7 +1569,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1572,7 +1602,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1590,7 +1621,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1623,7 +1654,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1641,7 +1673,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1674,7 +1706,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1692,7 +1725,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1725,7 +1758,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1743,7 +1777,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1776,7 +1810,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1794,7 +1829,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1827,7 +1862,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/Temporal/PlainDateTime.json b/javascript/builtins/Temporal/PlainDateTime.json
index 9adc140772118d..d1c0307e4c34d4 100644
--- a/javascript/builtins/Temporal/PlainDateTime.json
+++ b/javascript/builtins/Temporal/PlainDateTime.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "PlainDateTime": {
             "__compat": {
-              "description": "<code>PlainDateTime()</code> constructor",
+              "description": "`PlainDateTime()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-temporal-plaindatetime-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -95,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -113,7 +115,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -197,7 +200,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -215,7 +219,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -248,7 +252,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -266,7 +271,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -317,7 +323,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -368,7 +375,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -419,7 +427,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -572,7 +583,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -605,7 +616,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -622,7 +634,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -655,7 +667,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -672,7 +685,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -705,7 +718,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -723,7 +737,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -756,7 +770,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -774,7 +789,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -807,7 +822,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -825,7 +841,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -858,7 +874,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -876,7 +893,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -909,7 +926,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -927,7 +945,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -960,7 +978,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -978,7 +997,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1011,7 +1030,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1029,7 +1049,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1062,7 +1082,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1080,7 +1101,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1113,7 +1134,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1131,7 +1153,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1164,7 +1186,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1182,7 +1205,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1215,7 +1238,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1233,7 +1257,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1266,7 +1290,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1284,7 +1309,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1317,7 +1342,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
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-                  "impl_url": "https://crbug.com/v8/11544"
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@@ -1368,7 +1394,8 @@
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                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
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@@ -1386,7 +1413,7 @@
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-                  "impl_url": "https://crbug.com/v8/11544"
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@@ -1419,7 +1446,8 @@
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                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -1437,7 +1465,7 @@
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-                  "impl_url": "https://crbug.com/v8/11544"
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@@ -1470,7 +1498,8 @@
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                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
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@@ -1488,7 +1517,7 @@
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-                  "impl_url": "https://crbug.com/v8/11544"
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@@ -1521,7 +1550,8 @@
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                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
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@@ -1539,7 +1569,7 @@
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-                  "impl_url": "https://crbug.com/v8/11544"
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@@ -1572,7 +1602,8 @@
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                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
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@@ -1590,7 +1621,7 @@
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-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -1623,7 +1654,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -1641,7 +1673,7 @@
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                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
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@@ -1674,7 +1706,8 @@
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                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -1692,7 +1725,7 @@
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                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -1725,7 +1758,8 @@
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                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
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@@ -1743,7 +1777,7 @@
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-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -1776,7 +1810,8 @@
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                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
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@@ -1794,7 +1829,7 @@
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                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -1827,7 +1862,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
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@@ -1845,7 +1881,7 @@
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                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -1878,7 +1914,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -1896,7 +1933,7 @@
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                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -1929,7 +1966,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -1947,7 +1985,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -1980,7 +2018,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -1998,7 +2037,7 @@
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                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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                 "deno": {
@@ -2031,7 +2070,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -2049,7 +2089,7 @@
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                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -2082,7 +2122,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -2100,7 +2141,7 @@
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                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -2133,7 +2174,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -2151,7 +2193,7 @@
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                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -2184,7 +2226,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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diff --git a/javascript/builtins/Temporal/PlainMonthDay.json b/javascript/builtins/Temporal/PlainMonthDay.json
index 0d7345d98f81db..e9db8db801fc32 100644
--- a/javascript/builtins/Temporal/PlainMonthDay.json
+++ b/javascript/builtins/Temporal/PlainMonthDay.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
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@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "PlainMonthDay": {
             "__compat": {
-              "description": "<code>PlainMonthDay()</code> constructor",
+              "description": "`PlainMonthDay()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-temporal-plainmonthday-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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                 "deno": {
@@ -95,7 +96,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -113,7 +115,7 @@
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                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -197,7 +200,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -215,7 +219,7 @@
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                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -248,7 +252,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -266,7 +271,7 @@
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                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -317,7 +323,7 @@
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                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -368,7 +375,7 @@
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                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -419,7 +427,7 @@
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                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
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                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
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                 "chrome_android": "mirror",
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@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -572,7 +583,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
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@@ -605,7 +616,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -623,7 +635,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -656,7 +668,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
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@@ -674,7 +687,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -707,7 +720,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/Temporal/PlainTime.json b/javascript/builtins/Temporal/PlainTime.json
index 52700fcbeb4a53..d7a9f50338ec2e 100644
--- a/javascript/builtins/Temporal/PlainTime.json
+++ b/javascript/builtins/Temporal/PlainTime.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "PlainTime": {
             "__compat": {
-              "description": "<code>PlainTime()</code> constructor",
+              "description": "`PlainTime()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-properties-of-the-temporal-plaintime-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -95,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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@@ -113,7 +115,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -197,7 +200,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
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@@ -215,7 +219,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -248,7 +252,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
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               "status": {
                 "experimental": true,
@@ -266,7 +271,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -317,7 +323,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -368,7 +375,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -419,7 +427,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -572,7 +583,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -605,7 +616,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -623,7 +635,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -656,7 +668,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -674,7 +687,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -707,7 +720,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -725,7 +739,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -758,7 +772,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -776,7 +791,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -809,7 +824,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -827,7 +843,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -860,7 +876,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -878,7 +895,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -911,7 +928,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -929,7 +947,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -962,7 +980,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -980,7 +999,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1013,7 +1032,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1031,7 +1051,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1064,7 +1084,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1082,7 +1103,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1115,7 +1136,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/Temporal/PlainYearMonth.json b/javascript/builtins/Temporal/PlainYearMonth.json
index 1f5e87f80045a0..87eac5f2acd19e 100644
--- a/javascript/builtins/Temporal/PlainYearMonth.json
+++ b/javascript/builtins/Temporal/PlainYearMonth.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "PlainYearMonth": {
             "__compat": {
-              "description": "<code>PlainYearMonth()</code> constructor",
+              "description": "`PlainYearMonth()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-temporal-plainyearmonth-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -95,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -113,7 +115,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -197,7 +200,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -215,7 +219,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -248,7 +252,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -266,7 +271,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -317,7 +323,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -368,7 +375,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -419,7 +427,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -572,7 +583,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -605,7 +616,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -623,7 +635,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -656,7 +668,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -674,7 +687,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -707,7 +720,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -725,7 +739,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -758,7 +772,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -776,7 +791,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -809,7 +824,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -827,7 +843,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -860,7 +876,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -878,7 +895,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -911,7 +928,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -929,7 +947,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -962,7 +980,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -980,7 +999,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1013,7 +1032,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1031,7 +1051,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1064,7 +1084,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1082,7 +1103,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1115,7 +1136,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1133,7 +1155,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1166,7 +1188,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1184,7 +1207,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1217,7 +1240,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1235,7 +1259,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1268,7 +1292,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1286,7 +1311,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1319,7 +1344,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/Temporal/TimeZone.json b/javascript/builtins/Temporal/TimeZone.json
index 54fe3a71f05a97..257b5ac36ed854 100644
--- a/javascript/builtins/Temporal/TimeZone.json
+++ b/javascript/builtins/Temporal/TimeZone.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "TimeZone": {
             "__compat": {
-              "description": "<code>TimeZone()</code> constructor",
+              "description": "`TimeZone()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-temporal-timezone-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -95,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -113,7 +115,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -197,7 +200,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -215,7 +219,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -248,7 +252,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -266,7 +271,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -317,7 +323,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -368,7 +375,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -419,7 +427,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/Temporal/ZonedDateTime.json b/javascript/builtins/Temporal/ZonedDateTime.json
index da2390492b3666..b6677312a7b6ca 100644
--- a/javascript/builtins/Temporal/ZonedDateTime.json
+++ b/javascript/builtins/Temporal/ZonedDateTime.json
@@ -11,7 +11,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/v8/11544"
+                "impl_url": "https://crbug.com/42201538"
               },
               "chrome_android": "mirror",
               "deno": {
@@ -44,7 +44,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -54,7 +55,7 @@
           },
           "ZonedDateTime": {
             "__compat": {
-              "description": "<code>ZonedDateTime()</code> constructor",
+              "description": "`ZonedDateTime()` constructor",
               "spec_url": "https://tc39.es/proposal-temporal/#sec-temporal-zoneddatetime-constructor",
               "tags": [
                 "web-features:temporal"
@@ -62,7 +63,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -95,7 +96,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -113,7 +115,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -146,7 +148,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -164,7 +167,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -197,7 +200,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -215,7 +219,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -248,7 +252,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -266,7 +271,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -299,7 +304,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -317,7 +323,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -350,7 +356,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -368,7 +375,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -401,7 +408,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -419,7 +427,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -452,7 +460,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -470,7 +479,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -503,7 +512,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -521,7 +531,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -554,7 +564,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -572,7 +583,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -605,7 +616,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -623,7 +635,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -656,7 +668,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -674,7 +687,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -707,7 +720,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -725,7 +739,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -758,7 +772,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -776,7 +791,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -809,7 +824,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -827,7 +843,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -860,7 +876,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -878,7 +895,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -911,7 +928,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -929,7 +947,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -962,7 +980,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -980,7 +999,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1013,7 +1032,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1031,7 +1051,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1064,7 +1084,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1082,7 +1103,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1115,7 +1136,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1133,7 +1155,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1166,7 +1188,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1184,7 +1207,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1217,7 +1240,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1235,7 +1259,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1268,7 +1292,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1286,7 +1311,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1319,7 +1344,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1337,7 +1363,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1370,7 +1396,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1388,7 +1415,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1421,7 +1448,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1439,7 +1467,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1472,7 +1500,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1490,7 +1519,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1523,7 +1552,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1541,7 +1571,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1574,7 +1604,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1592,7 +1623,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1625,7 +1656,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1643,7 +1675,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1676,7 +1708,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1694,7 +1727,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1727,7 +1760,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1745,7 +1779,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1778,7 +1812,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1796,7 +1831,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1829,7 +1864,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1847,7 +1883,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1880,7 +1916,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1898,7 +1935,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1931,7 +1968,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1949,7 +1987,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -1982,7 +2020,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2000,7 +2039,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2033,7 +2072,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2051,7 +2091,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2084,7 +2124,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2102,7 +2143,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2135,7 +2176,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2153,7 +2195,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2186,7 +2228,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2204,7 +2247,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2237,7 +2280,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2255,7 +2299,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2288,7 +2332,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2306,7 +2351,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2339,7 +2384,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2357,7 +2403,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2390,7 +2436,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2408,7 +2455,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2441,7 +2488,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2459,7 +2507,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2492,7 +2540,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2510,7 +2559,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2543,7 +2592,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2561,7 +2611,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2594,7 +2644,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2612,7 +2663,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2645,7 +2696,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -2663,7 +2715,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/v8/11544"
+                  "impl_url": "https://crbug.com/42201538"
                 },
                 "chrome_android": "mirror",
                 "deno": {
@@ -2696,7 +2748,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
diff --git a/javascript/builtins/TypeError.json b/javascript/builtins/TypeError.json
index 1941bc494a829d..33c17e5c246afe 100644
--- a/javascript/builtins/TypeError.json
+++ b/javascript/builtins/TypeError.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/TypeError",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-native-error-types-used-in-this-standard-typeerror",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "TypeError": {
           "__compat": {
-            "description": "<code>TypeError()</code> constructor",
+            "description": "`TypeError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/TypeError/TypeError",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-nativeerror-constructors",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -101,9 +105,12 @@
         },
         "serializable_object": {
           "__compat": {
-            "description": "<code>TypeError</code> is serializable",
+            "description": "`TypeError` is serializable",
             "mdn_url": "https://developer.mozilla.org/docs/Glossary/Serializable_object",
             "spec_url": "https://html.spec.whatwg.org/multipage/structured-data.html#serializable-objects",
+            "tags": [
+              "web-features:serializable-errors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -116,9 +123,9 @@
               "firefox": {
                 "version_added": "103",
                 "notes": [
-                  "Version 103 serializable properties: <code>name</code>, <code>message</code>, <code>cause</code>, <code>fileName</code>, <code>lineNumber</code> and <code>columnNumber</code>.",
-                  "Version 104 also serializes <code>stack</code> in the main thread (<a href='https://developer.mozilla.org/docs/Web/API/Window/postMessage'><code>window.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>).",
-                  "Version 110 also serializes <code>stack</code> in workers (<a href='https://developer.mozilla.org/docs/Web/API/Worker/postMessage'><code>worker.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>)."
+                  "Version 103 serializable properties: `name`, `message`, `cause`, `fileName`, `lineNumber` and `columnNumber`.",
+                  "Version 104 also serializes `stack` in the main thread ([`window.postMessage()`](https://developer.mozilla.org/docs/Web/API/Window/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone)).",
+                  "Version 110 also serializes `stack` in workers ([`worker.postMessage()`](https://developer.mozilla.org/docs/Web/API/Worker/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone))."
                 ]
               },
               "firefox_android": "mirror",
@@ -136,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/TypedArray.json b/javascript/builtins/TypedArray.json
index fb4858af1d446b..0512084d1218d7 100644
--- a/javascript/builtins/TypedArray.json
+++ b/javascript/builtins/TypedArray.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -99,7 +100,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -143,7 +145,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -197,7 +200,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -251,7 +255,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -305,7 +310,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -356,7 +362,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -402,7 +409,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -448,7 +456,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -494,7 +503,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -540,7 +550,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -586,7 +597,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -632,7 +644,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -678,7 +691,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -722,7 +736,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -766,7 +781,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -812,7 +828,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -858,7 +875,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -904,7 +922,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -917,7 +936,8 @@
           "__compat": {
             "description": "Indexed properties not consulting prototype",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -963,7 +983,8 @@
               "webview_android": {
                 "version_added": "≤37",
                 "notes": "Negative integers are not considered as indexed properties and therefore return the value of the prototype property."
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -993,7 +1014,7 @@
               },
               "firefox": {
                 "version_added": "37",
-                "notes": "Starting with Firefox 47, this method will no longer return <code>-0</code>. For example, <code>new Uint8Array([0]).indexOf(0, -0)</code> will now always return <code>+0</code>."
+                "notes": "Starting with Firefox 47, this method will no longer return `-0`. For example, `new Uint8Array([0]).indexOf(0, -0)` will now always return `+0`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1010,7 +1031,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1023,7 +1045,8 @@
           "__compat": {
             "description": "Iterable in constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -1054,7 +1077,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1100,7 +1124,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1146,7 +1171,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1176,7 +1202,7 @@
               },
               "firefox": {
                 "version_added": "37",
-                "notes": "Starting with Firefox 47, this method will no longer return <code>-0</code>. For example, <code>new Uint8Array([0]).lastIndexOf(0, -0)</code> will now always return <code>+0</code>."
+                "notes": "Starting with Firefox 47, this method will no longer return `-0`. For example, `new Uint8Array([0]).lastIndexOf(0, -0)` will now always return `+0`."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -1193,7 +1219,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1247,7 +1274,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1293,7 +1321,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1347,7 +1376,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1398,7 +1428,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1444,7 +1475,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1490,7 +1522,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1536,7 +1569,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1582,7 +1616,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1636,7 +1671,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1682,7 +1718,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1728,7 +1765,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1774,7 +1812,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1828,7 +1867,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1841,6 +1881,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/toLocaleString",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-%typedarray%.prototype.tolocalestring",
+            "tags": [
+              "web-features:intl"
+            ],
             "support": {
               "chrome": {
                 "version_added": "7"
@@ -1876,7 +1919,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1920,7 +1964,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1964,7 +2009,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2016,7 +2062,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "≤37"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2062,7 +2109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2106,7 +2154,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2143,13 +2192,13 @@
                   "alternative_name": "@@iterator",
                   "version_added": "27",
                   "version_removed": "36",
-                  "notes": "A placeholder property named <code>@@iterator</code> is used."
+                  "notes": "A placeholder property named `@@iterator` is used."
                 },
                 {
                   "alternative_name": "iterator",
                   "version_added": "17",
                   "version_removed": "27",
-                  "notes": "A placeholder property named <code>iterator</code> is used."
+                  "notes": "A placeholder property named `iterator` is used."
                 }
               ],
               "firefox_android": "mirror",
@@ -2167,7 +2216,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2182,7 +2232,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/Symbol.species",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-get-%typedarray%-%symbol.species%",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:typed-arrays"
             ],
             "support": {
               "chrome": {
@@ -2213,7 +2264,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/URIError.json b/javascript/builtins/URIError.json
index aa56a2ca46185c..743c621f621801 100644
--- a/javascript/builtins/URIError.json
+++ b/javascript/builtins/URIError.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/URIError",
           "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-native-error-types-used-in-this-standard-urierror",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,11 +53,12 @@
         },
         "URIError": {
           "__compat": {
-            "description": "<code>URIError()</code> constructor",
+            "description": "`URIError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/URIError/URIError",
             "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-nativeerror-constructors",
             "tags": [
-              "web-features:snapshot:ecmascript-3"
+              "web-features:snapshot:ecmascript-3",
+              "web-features:javascript"
             ],
             "support": {
               "chrome": {
@@ -90,7 +93,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -101,9 +105,12 @@
         },
         "serializable_object": {
           "__compat": {
-            "description": "<code>URIError</code> is serializable",
+            "description": "`URIError` is serializable",
             "mdn_url": "https://developer.mozilla.org/docs/Glossary/Serializable_object",
             "spec_url": "https://html.spec.whatwg.org/multipage/structured-data.html#serializable-objects",
+            "tags": [
+              "web-features:serializable-errors"
+            ],
             "support": {
               "chrome": {
                 "version_added": "77"
@@ -116,9 +123,9 @@
               "firefox": {
                 "version_added": "103",
                 "notes": [
-                  "Version 103 serializable properties: <code>name</code>, <code>message</code>, <code>cause</code>, <code>fileName</code>, <code>lineNumber</code> and <code>columnNumber</code>.",
-                  "Version 104 also serializes <code>stack</code> in the main thread (<a href='https://developer.mozilla.org/docs/Web/API/Window/postMessage'><code>window.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>).",
-                  "Version 110 also serializes <code>stack</code> in workers (<a href='https://developer.mozilla.org/docs/Web/API/Worker/postMessage'><code>worker.postMessage()</code></a> and <a href='https://developer.mozilla.org/docs/Web/API/structuredClone'><code>structuredClone()</code></a>)."
+                  "Version 103 serializable properties: `name`, `message`, `cause`, `fileName`, `lineNumber` and `columnNumber`.",
+                  "Version 104 also serializes `stack` in the main thread ([`window.postMessage()`](https://developer.mozilla.org/docs/Web/API/Window/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone)).",
+                  "Version 110 also serializes `stack` in workers ([`worker.postMessage()`](https://developer.mozilla.org/docs/Web/API/Worker/postMessage) and [`structuredClone()`](https://developer.mozilla.org/docs/Web/API/structuredClone))."
                 ]
               },
               "firefox_android": "mirror",
@@ -136,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/Uint16Array.json b/javascript/builtins/Uint16Array.json
index a8d151ead6bd5c..9a7901f4637b45 100644
--- a/javascript/builtins/Uint16Array.json
+++ b/javascript/builtins/Uint16Array.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,7 @@
         },
         "Uint16Array": {
           "__compat": {
-            "description": "<code>Uint16Array()</code> constructor",
+            "description": "`Uint16Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint16Array/Uint16Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -100,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +152,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -161,7 +164,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Uint16Array(iterable)</code>",
+              "description": "`new Uint16Array(iterable)`",
               "tags": [
                 "web-features:typed-arrays",
                 "web-features:snapshot:ecmascript-2015"
@@ -195,7 +198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Uint32Array.json b/javascript/builtins/Uint32Array.json
index 066247439bc7b7..f87460c586eebf 100644
--- a/javascript/builtins/Uint32Array.json
+++ b/javascript/builtins/Uint32Array.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,7 @@
         },
         "Uint32Array": {
           "__compat": {
-            "description": "<code>Uint32Array()</code> constructor",
+            "description": "`Uint32Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint32Array/Uint32Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -100,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +152,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -161,7 +164,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Uint32Array(iterable)</code>",
+              "description": "`new Uint32Array(iterable)`",
               "tags": [
                 "web-features:snapshot:ecmascript-2015",
                 "web-features:typed-arrays"
@@ -195,7 +198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/Uint8Array.json b/javascript/builtins/Uint8Array.json
index 69d27f62f57826..8ade6efa179351 100644
--- a/javascript/builtins/Uint8Array.json
+++ b/javascript/builtins/Uint8Array.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,7 @@
         },
         "Uint8Array": {
           "__compat": {
-            "description": "<code>Uint8Array()</code> constructor",
+            "description": "`Uint8Array()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/Uint8Array",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -100,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +152,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -161,7 +164,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Uint8Array(iterable)</code>",
+              "description": "`new Uint8Array(iterable)`",
               "tags": [
                 "web-features:typed-arrays",
                 "web-features:snapshot:ecmascript-2015"
@@ -195,7 +198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -204,6 +208,276 @@
               }
             }
           }
+        },
+        "fromBase64": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/fromBase64",
+            "spec_url": "https://tc39.es/proposal-arraybuffer-base64/spec/#sec-uint8array.frombase64",
+            "tags": [
+              "web-features:uint8array-base64-hex"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/42204568"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "133"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "fromHex": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/fromHex",
+            "spec_url": "https://tc39.es/proposal-arraybuffer-base64/spec/#sec-uint8array.fromhex",
+            "tags": [
+              "web-features:uint8array-base64-hex"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/42204568"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "133"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "setFromBase64": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/setFromBase64",
+            "spec_url": "https://tc39.es/proposal-arraybuffer-base64/spec/#sec-uint8array.prototype.setfrombase64",
+            "tags": [
+              "web-features:uint8array-base64-hex"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/42204568"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "133"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "setFromHex": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/setFromHex",
+            "spec_url": "https://tc39.es/proposal-arraybuffer-base64/spec/#sec-uint8array.prototype.setfromhex",
+            "tags": [
+              "web-features:uint8array-base64-hex"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/42204568"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "133"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "toBase64": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/toBase64",
+            "spec_url": "https://tc39.es/proposal-arraybuffer-base64/spec/#sec-uint8array.prototype.tobase64",
+            "tags": [
+              "web-features:uint8array-base64-hex"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/42204568"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "133"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
+        "toHex": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/toHex",
+            "spec_url": "https://tc39.es/proposal-arraybuffer-base64/spec/#sec-uint8array.prototype.tohex",
+            "tags": [
+              "web-features:uint8array-base64-hex"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false,
+                "impl_url": "https://crbug.com/42204568"
+              },
+              "chrome_android": "mirror",
+              "deno": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "133"
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "nodejs": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "18.2"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }
diff --git a/javascript/builtins/Uint8ClampedArray.json b/javascript/builtins/Uint8ClampedArray.json
index d9436d9b2e0439..6bcb908d5ab89e 100644
--- a/javascript/builtins/Uint8ClampedArray.json
+++ b/javascript/builtins/Uint8ClampedArray.json
@@ -46,7 +46,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -56,7 +57,7 @@
         },
         "Uint8ClampedArray": {
           "__compat": {
-            "description": "<code>Uint8ClampedArray()</code> constructor",
+            "description": "`Uint8ClampedArray()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray/Uint8ClampedArray",
             "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
             "tags": [
@@ -100,7 +101,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,7 +114,8 @@
             "__compat": {
               "description": "Constructor without parameters",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:typed-arrays"
               ],
               "support": {
                 "chrome": {
@@ -149,7 +152,8 @@
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": "≤37"
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -160,7 +164,7 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new Uint8ClampedArray(iterable)</code>",
+              "description": "`new Uint8ClampedArray(iterable)`",
               "tags": [
                 "web-features:typed-arrays",
                 "web-features:snapshot:ecmascript-2015"
@@ -194,7 +198,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/javascript/builtins/WeakMap.json b/javascript/builtins/WeakMap.json
index 9a97684ad5c9fb..1d55ec38cda877 100644
--- a/javascript/builtins/WeakMap.json
+++ b/javascript/builtins/WeakMap.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakMap",
           "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakmap-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:weakmap"
           ],
           "support": {
             "chrome": {
@@ -37,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,11 +49,12 @@
         },
         "WeakMap": {
           "__compat": {
-            "description": "<code>WeakMap()</code> constructor",
+            "description": "`WeakMap()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/WeakMap",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakmap-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:weakmap"
             ],
             "support": {
               "chrome": {
@@ -82,7 +85,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -92,9 +96,10 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new WeakMap(iterable)</code>",
+              "description": "`new WeakMap(iterable)`",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:weakmap"
               ],
               "support": {
                 "chrome": {
@@ -125,7 +130,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -136,9 +142,10 @@
           },
           "null_allowed": {
             "__compat": {
-              "description": "<code>new WeakMap(null)</code>",
+              "description": "`new WeakMap(null)`",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:weakmap"
               ],
               "support": {
                 "chrome": {
@@ -169,7 +176,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -184,7 +192,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/delete",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakmap.prototype.delete",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:weakmap"
             ],
             "support": {
               "chrome": {
@@ -199,7 +208,7 @@
               },
               "firefox": {
                 "version_added": "6",
-                "notes": "Before Firefox 38, this method threw a <code>TypeError</code> when the key parameter was not an object. This has been fixed in version 38 and later to return <code>false</code> as per the ES2015 standard."
+                "notes": "Before Firefox 38, this method threw a `TypeError` when the key parameter was not an object. This has been fixed in version 38 and later to return `false` as per the ES2015 standard."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -216,7 +225,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -230,7 +240,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/get",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakmap.prototype.get",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:weakmap"
             ],
             "support": {
               "chrome": {
@@ -245,7 +256,7 @@
               },
               "firefox": {
                 "version_added": "6",
-                "notes": "Before Firefox 38, this method threw a <code>TypeError</code> when the key parameter was not an object. However, the ES2015 specification specifies to return <code>undefined</code> instead. Furthermore, <code>WeakMap.prototype.get</code> accepted an optional second argument as a fallback value, which is not part of the standard. Both non-standard behaviors are removed in version 38 and higher."
+                "notes": "Before Firefox 38, this method threw a `TypeError` when the key parameter was not an object. However, the ES2015 specification specifies to return `undefined` instead. Furthermore, `WeakMap.prototype.get` accepted an optional second argument as a fallback value, which is not part of the standard. Both non-standard behaviors are removed in version 38 and higher."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -262,7 +273,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -276,7 +288,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/has",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakmap.prototype.has",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:weakmap"
             ],
             "support": {
               "chrome": {
@@ -291,7 +304,7 @@
               },
               "firefox": {
                 "version_added": "6",
-                "notes": "Before Firefox 38, this method threw a <code>TypeError</code> when the key parameter was not an object. This has been fixed in version 38 and later to return <code>false</code> as per the ES2015 standard."
+                "notes": "Before Firefox 38, this method threw a `TypeError` when the key parameter was not an object. This has been fixed in version 38 and later to return `false` as per the ES2015 standard."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -308,7 +321,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -322,7 +336,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/set",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakmap.prototype.set",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:weakmap"
             ],
             "support": {
               "chrome": {
@@ -337,7 +352,7 @@
               },
               "firefox": {
                 "version_added": "6",
-                "notes": "Before Firefox 38, this method threw a <code>TypeError</code> when the key parameter was not an object. This has been fixed in version 38 and later to return <code>false</code> as per the ES2015 standard."
+                "notes": "Before Firefox 38, this method threw a `TypeError` when the key parameter was not an object. This has been fixed in version 38 and later to return `false` as per the ES2015 standard."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -356,7 +371,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -369,7 +385,8 @@
           "__compat": {
             "description": "Non-registered symbols as keys",
             "tags": [
-              "web-features:snapshot:ecmascript-2023"
+              "web-features:snapshot:ecmascript-2023",
+              "web-features:weakmap"
             ],
             "support": {
               "chrome": {
@@ -399,7 +416,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/WeakRef.json b/javascript/builtins/WeakRef.json
index 6688fadbcf89a2..14f5ca994ea02e 100644
--- a/javascript/builtins/WeakRef.json
+++ b/javascript/builtins/WeakRef.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakRef",
           "spec_url": "https://tc39.es/ecma262/multipage/managing-memory.html#sec-weak-ref-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2021"
+            "web-features:snapshot:ecmascript-2021",
+            "web-features:weak-references"
           ],
           "support": {
             "chrome": {
@@ -35,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,11 +47,12 @@
         },
         "WeakRef": {
           "__compat": {
-            "description": "<code>WeakRef()</code> constructor",
+            "description": "`WeakRef()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakRef/WeakRef",
             "spec_url": "https://tc39.es/ecma262/multipage/managing-memory.html#sec-weak-ref-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2021"
+              "web-features:snapshot:ecmascript-2021",
+              "web-features:weak-references"
             ],
             "support": {
               "chrome": {
@@ -78,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -92,7 +96,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakRef/deref",
             "spec_url": "https://tc39.es/ecma262/multipage/managing-memory.html#sec-weak-ref.prototype.deref",
             "tags": [
-              "web-features:snapshot:ecmascript-2021"
+              "web-features:snapshot:ecmascript-2021",
+              "web-features:weak-references"
             ],
             "support": {
               "chrome": {
@@ -121,7 +126,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -134,7 +140,8 @@
           "__compat": {
             "description": "Non-registered symbol as target",
             "tags": [
-              "web-features:snapshot:ecmascript-2023"
+              "web-features:snapshot:ecmascript-2023",
+              "web-features:weak-references"
             ],
             "support": {
               "chrome": {
@@ -163,7 +170,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/WeakSet.json b/javascript/builtins/WeakSet.json
index 97a9eea18a203d..7a4d3bd03bddaf 100644
--- a/javascript/builtins/WeakSet.json
+++ b/javascript/builtins/WeakSet.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakSet",
           "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakset-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:weakset"
           ],
           "support": {
             "chrome": {
@@ -37,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,11 +49,12 @@
         },
         "WeakSet": {
           "__compat": {
-            "description": "<code>WeakSet()</code> constructor",
+            "description": "`WeakSet()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/WeakSet",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakset-constructor",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:weakset"
             ],
             "support": {
               "chrome": {
@@ -82,7 +85,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -92,9 +96,10 @@
           },
           "iterable_allowed": {
             "__compat": {
-              "description": "<code>new WeakSet(iterable)</code>",
+              "description": "`new WeakSet(iterable)`",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:weakset"
               ],
               "support": {
                 "chrome": {
@@ -125,7 +130,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -136,9 +142,10 @@
           },
           "null_allowed": {
             "__compat": {
-              "description": "<code>new WeakSet(null)</code>",
+              "description": "`new WeakSet(null)`",
               "tags": [
-                "web-features:snapshot:ecmascript-2015"
+                "web-features:snapshot:ecmascript-2015",
+                "web-features:weakset"
               ],
               "support": {
                 "chrome": {
@@ -169,7 +176,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -184,7 +192,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/add",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakset.prototype.add",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:weakset"
             ],
             "support": {
               "chrome": {
@@ -215,7 +224,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -229,7 +239,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/delete",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakset.prototype.delete",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:weakset"
             ],
             "support": {
               "chrome": {
@@ -260,7 +271,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -274,7 +286,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/has",
             "spec_url": "https://tc39.es/ecma262/multipage/keyed-collections.html#sec-weakset.prototype.has",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:weakset"
             ],
             "support": {
               "chrome": {
@@ -305,7 +318,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -318,7 +332,8 @@
           "__compat": {
             "description": "Non-registered symbols as keys",
             "tags": [
-              "web-features:snapshot:ecmascript-2023"
+              "web-features:snapshot:ecmascript-2023",
+              "web-features:weakset"
             ],
             "support": {
               "chrome": {
@@ -348,7 +363,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/builtins/globals.json b/javascript/builtins/globals.json
index bcca804c938977..12330e76984152 100644
--- a/javascript/builtins/globals.json
+++ b/javascript/builtins/globals.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Infinity",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-value-properties-of-the-global-object-infinity",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -55,7 +57,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/NaN",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-value-properties-of-the-global-object-nan",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -90,7 +93,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -104,7 +108,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/decodeURI",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-decodeuri-encodeduri",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -139,7 +144,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -153,7 +159,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-decodeuricomponent-encodeduricomponent",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -188,7 +195,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -202,7 +210,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/encodeURI",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-encodeuri-uri",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -237,7 +246,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -251,7 +261,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-encodeuricomponent-uricomponent",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -286,7 +297,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -335,7 +347,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -349,7 +362,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/eval",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-eval-x",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -384,7 +398,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -427,7 +442,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -441,7 +457,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/isFinite",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-isfinite-number",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -476,7 +493,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -490,7 +508,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/isNaN",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-isnan-number",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -525,7 +544,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -539,7 +559,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/parseFloat",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-parsefloat-string",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -574,7 +595,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -588,7 +610,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/parseInt",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-parseint-string-radix",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -623,7 +646,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -663,7 +687,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -678,7 +703,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/undefined",
           "spec_url": "https://tc39.es/ecma262/multipage/global-object.html#sec-undefined",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -713,7 +739,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -762,7 +789,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/classes.json b/javascript/classes.json
index bcb44b4a3224b4..6f933a006417af 100644
--- a/javascript/classes.json
+++ b/javascript/classes.json
@@ -44,7 +44,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -96,7 +97,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -149,7 +151,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -163,6 +166,9 @@
           "description": "Private class fields",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Classes/Private_properties",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#prod-PrivateIdentifier",
+          "tags": [
+            "web-features:class-syntax"
+          ],
           "support": {
             "chrome": {
               "version_added": "74"
@@ -190,7 +196,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -204,6 +211,9 @@
           "description": "Private class fields 'in'",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Classes/Private_properties",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-00OK517S",
+          "tags": [
+            "web-features:class-syntax"
+          ],
           "support": {
             "chrome": {
               "version_added": "91"
@@ -231,7 +241,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -245,6 +256,9 @@
           "description": "Private class methods",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Classes/Private_properties",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#prod-PrivateIdentifier",
+          "tags": [
+            "web-features:class-syntax"
+          ],
           "support": {
             "chrome": {
               "version_added": "84"
@@ -272,7 +286,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -286,6 +301,9 @@
           "description": "Public class fields",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Classes/Public_class_fields",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#prod-FieldDefinition",
+          "tags": [
+            "web-features:class-syntax"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
@@ -316,18 +334,19 @@
                 "version_added": "14.1",
                 "version_removed": "16",
                 "partial_implementation": true,
-                "notes": "Parentheses in field initializers can lead to <code>ReferenceError</code>s. See <a href='https://webkit.org/b/236843'>bug 236843</a>."
+                "notes": "Parentheses in field initializers can lead to `ReferenceError`s. See [bug 236843](https://webkit.org/b/236843)."
               },
               {
                 "version_added": "14",
                 "version_removed": "14.1",
                 "partial_implementation": true,
-                "notes": "Doesn't support public static fields. See <a href='https://webkit.org/b/194095'>bug 194095</a>."
+                "notes": "Doesn't support public static fields. See [bug 194095](https://webkit.org/b/194095)."
               }
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -380,7 +399,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -394,6 +414,9 @@
           "description": "Static class fields",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Classes/Public_class_fields",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#prod-FieldDefinition",
+          "tags": [
+            "web-features:class-syntax"
+          ],
           "support": {
             "chrome": {
               "version_added": "72"
@@ -421,7 +444,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -435,6 +459,9 @@
           "description": "Class static initialization blocks",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Classes/Static_initialization_blocks",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#prod-ClassStaticBlock",
+          "tags": [
+            "web-features:class-syntax"
+          ],
           "support": {
             "chrome": {
               "version_added": "94"
@@ -462,7 +489,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/functions.json b/javascript/functions.json
index 3681253a203111..46d00e24f3ea3a 100644
--- a/javascript/functions.json
+++ b/javascript/functions.json
@@ -5,7 +5,8 @@
         "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions",
         "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-function-definitions",
         "tags": [
-          "web-features:snapshot:ecmascript-1"
+          "web-features:snapshot:ecmascript-1",
+          "web-features:functions"
         ],
         "support": {
           "chrome": {
@@ -40,7 +41,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -53,7 +55,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/arguments",
           "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-arguments-exotic-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -88,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -136,7 +140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,7 +155,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/arguments/length",
             "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-arguments-exotic-objects",
             "tags": [
-              "web-features:snapshot:ecmascript-1"
+              "web-features:snapshot:ecmascript-1",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -185,7 +191,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -203,7 +210,8 @@
               "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-createmappedargumentsobject"
             ],
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -234,7 +242,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -250,7 +259,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/Arrow_functions",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-arrow-function-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -266,8 +276,8 @@
             "firefox": {
               "version_added": "22",
               "notes": [
-                "The initial implementation of arrow functions in Firefox made them automatically strict. This has been changed as of Firefox 24. The use of <code>'use strict';</code> is now required.",
-                "Before Firefox 39, a line terminator (<code>\\n</code>) was incorrectly allowed after arrow function arguments. This has been fixed to conform to the ES2015 specification and code like <code>() \\n =&gt; {}</code> will now throw a <code>SyntaxError</code> in this and later versions."
+                "The initial implementation of arrow functions in Firefox made them automatically strict. This has been changed as of Firefox 24. The use of `'use strict';` is now required.",
+                "Before Firefox 39, a line terminator (`\\n`) was incorrectly allowed after arrow function arguments. This has been fixed to conform to the ES2015 specification and code like `() \\n =&gt; {}` will now throw a `SyntaxError` in this and later versions."
               ]
             },
             "firefox_android": "mirror",
@@ -285,7 +295,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -297,7 +308,8 @@
           "__compat": {
             "description": "Trailing comma in parameters",
             "tags": [
-              "web-features:snapshot:ecmascript-2017"
+              "web-features:snapshot:ecmascript-2017",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -328,7 +340,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -342,7 +355,8 @@
         "__compat": {
           "description": "Block-level functions",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -373,7 +387,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -388,7 +403,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/Default_parameters",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-function-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -419,7 +435,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -431,7 +448,8 @@
           "__compat": {
             "description": "Destructured parameter with default value assignment",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -462,7 +480,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -475,7 +494,8 @@
           "__compat": {
             "description": "Parameters without defaults after default parameters",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -506,7 +526,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -521,7 +542,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/get",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-method-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-5"
+            "web-features:snapshot:ecmascript-5",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -556,7 +578,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -568,7 +591,8 @@
           "__compat": {
             "description": "Computed property names",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -601,7 +625,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -617,7 +642,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/Method_definitions",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-method-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -648,7 +674,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -659,6 +686,9 @@
         "async_generator_methods": {
           "__compat": {
             "description": "Async generator methods",
+            "tags": [
+              "web-features:async-generators"
+            ],
             "support": {
               "chrome": {
                 "version_added": "63"
@@ -686,7 +716,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -698,6 +729,9 @@
         "async_methods": {
           "__compat": {
             "description": "Async methods",
+            "tags": [
+              "web-features:functions"
+            ],
             "support": {
               "chrome": {
                 "version_added": "55"
@@ -727,7 +761,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -739,6 +774,9 @@
         "generator_methods_not_constructable": {
           "__compat": {
             "description": "Generator methods are not constructable (ES2016)",
+            "tags": [
+              "web-features:functions"
+            ],
             "support": {
               "chrome": {
                 "version_added": "42"
@@ -768,7 +806,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -784,7 +823,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/rest_parameters",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-function-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -815,7 +855,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -827,7 +868,8 @@
           "__compat": {
             "description": "Destructuring rest parameters",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -856,7 +898,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -871,7 +914,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/set",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-method-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-5"
+            "web-features:snapshot:ecmascript-5",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -906,7 +950,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -918,7 +963,8 @@
           "__compat": {
             "description": "Computed property names",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:functions"
             ],
             "support": {
               "chrome": {
@@ -951,7 +997,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/grammar.json b/javascript/grammar.json
index f5ede2b34afb3d..4cb913df0a9735 100644
--- a/javascript/grammar.json
+++ b/javascript/grammar.json
@@ -3,7 +3,7 @@
     "grammar": {
       "array_literals": {
         "__compat": {
-          "description": "Array literals (<code>[1, 2, 3]</code>)",
+          "description": "Array literals (`[1, 2, 3]`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Array_literals",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-array-initializer",
           "tags": [
@@ -43,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -54,11 +55,12 @@
       },
       "binary_numeric_literals": {
         "__compat": {
-          "description": "Binary numeric literals (<code>0b</code>)",
+          "description": "Binary numeric literals (`0b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Binary",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#prod-BinaryIntegerLiteral",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -89,7 +91,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -100,11 +103,12 @@
       },
       "boolean_literals": {
         "__compat": {
-          "description": "Boolean literals (<code>true</code>/<code>false</code>)",
+          "description": "Boolean literals (`true`/`false`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Boolean_literal",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#sec-boolean-literals",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -139,7 +143,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -150,11 +155,12 @@
       },
       "decimal_numeric_literals": {
         "__compat": {
-          "description": "Decimal numeric literals (<code>1234567890</code>)",
+          "description": "Decimal numeric literals (`1234567890`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Decimal",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#prod-DecimalLiteral",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -189,7 +195,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -200,7 +207,7 @@
       },
       "hashbang_comments": {
         "__compat": {
-          "description": "Hashbang (<code>#!</code>) comment syntax",
+          "description": "Hashbang (`#!`) comment syntax",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Hashbang_comments",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#sec-hashbang",
           "tags": [
@@ -233,7 +240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -244,7 +252,7 @@
       },
       "hexadecimal_escape_sequences": {
         "__compat": {
-          "description": "Hexadecimal escape sequences (<code>'\\xA9'</code>)",
+          "description": "Hexadecimal escape sequences (`'\\xA9'`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Hexadecimal_escape_sequences",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#prod-HexEscapeSequence",
           "support": {
@@ -280,7 +288,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -291,11 +300,12 @@
       },
       "hexadecimal_numeric_literals": {
         "__compat": {
-          "description": "Hexadecimal numeric literals (<code>0xAF</code>)",
+          "description": "Hexadecimal numeric literals (`0xAF`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Hexadecimal",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#prod-HexIntegerLiteral",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -330,7 +340,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -341,11 +352,12 @@
       },
       "null_literal": {
         "__compat": {
-          "description": "Null literal (<code>null</code>)",
+          "description": "Null literal (`null`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Null_literal",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#sec-null-literals",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -380,7 +392,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -391,7 +404,7 @@
       },
       "numeric_separators": {
         "__compat": {
-          "description": "Numeric separators (<code>1_000_000_000_000</code>)",
+          "description": "Numeric separators (`1_000_000_000_000`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Numeric_separators",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#prod-NumericLiteralSeparator",
           "support": {
@@ -415,15 +428,14 @@
             },
             "oculus": "mirror",
             "opera": "mirror",
-            "opera_android": {
-              "version_added": false
-            },
+            "opera_android": "mirror",
             "safari": {
               "version_added": "13"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -434,11 +446,12 @@
       },
       "octal_numeric_literals": {
         "__compat": {
-          "description": "Octal numeric literals (<code>0o</code>)",
+          "description": "Octal numeric literals (`0o`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Octal",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#prod-OctalIntegerLiteral",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:number"
           ],
           "support": {
             "chrome": {
@@ -469,7 +482,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -480,11 +494,12 @@
       },
       "regular_expression_literals": {
         "__compat": {
-          "description": "Regular expression literals (<code>/ab+c/g</code>)",
+          "description": "Regular expression literals (`/ab+c/g`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Regular_expression_literals",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#sec-literals-regular-expression-literals",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -519,7 +534,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -530,11 +546,12 @@
       },
       "string_literals": {
         "__compat": {
-          "description": "String literals (<code>'Hello world'</code>)",
+          "description": "String literals (`'Hello world'`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#String_literals",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#sec-literals-string-literals",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:strings"
           ],
           "support": {
             "chrome": {
@@ -569,7 +586,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -580,7 +598,7 @@
       },
       "unicode_escape_sequences": {
         "__compat": {
-          "description": "Unicode escape sequences (<code>'\\u00A9'</code>)",
+          "description": "Unicode escape sequences (`'\\u00A9'`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Unicode_escape_sequences",
           "spec_url": "https://tc39.es/ecma262/multipage/structured-data.html#sec-unicodeescape",
           "tags": [
@@ -619,7 +637,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -630,7 +649,7 @@
       },
       "unicode_point_escapes": {
         "__compat": {
-          "description": "Unicode point escapes (<code>\\u{}</code>)",
+          "description": "Unicode point escapes (`\\u{}`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Lexical_grammar#Unicode_code_point_escapes",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-lexical-grammar.html#prod-UnicodeEscapeSequence",
           "tags": [
@@ -665,7 +684,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -678,7 +698,8 @@
         "__compat": {
           "description": "Shorthand notation for object literals",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:object-object"
           ],
           "support": {
             "chrome": {
@@ -709,7 +730,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -755,7 +777,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -796,7 +819,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -855,7 +879,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -895,7 +920,7 @@
                   "version_added": "16.14.0",
                   "version_removed": "16.15.0",
                   "partial_implementation": true,
-                  "notes": "The second parameter no longer throws a parser error, but the <code>--experimental-json-modules</code> flag is still needed to load JSON modules."
+                  "notes": "The second parameter no longer throws a parser error, but the `--experimental-json-modules` flag is still needed to load JSON modules."
                 }
               ],
               "oculus": "mirror",
@@ -910,7 +935,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -951,7 +977,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -998,7 +1025,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/operators/addition.json b/javascript/operators/addition.json
index c3cd87aeeca2f5..00a645eea7dfcd 100644
--- a/javascript/operators/addition.json
+++ b/javascript/operators/addition.json
@@ -3,11 +3,12 @@
     "operators": {
       "addition": {
         "__compat": {
-          "description": "Addition (<code>+</code>)",
+          "description": "Addition (`+`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Addition",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-addition-operator-plus",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/addition_assignment.json b/javascript/operators/addition_assignment.json
index 5ed6feb685b42c..16a4ff0c73c806 100644
--- a/javascript/operators/addition_assignment.json
+++ b/javascript/operators/addition_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "addition_assignment": {
         "__compat": {
-          "description": "Addition assignment (<code>x += y</code>)",
+          "description": "Addition assignment (`x += y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Addition_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/assignment.json b/javascript/operators/assignment.json
index f338ee31b189e8..78a01681b373dd 100644
--- a/javascript/operators/assignment.json
+++ b/javascript/operators/assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "assignment": {
         "__compat": {
-          "description": "Assignment (<code>x = y</code>)",
+          "description": "Assignment (`x = y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/async_function.json b/javascript/operators/async_function.json
index ca37c22c3ad2fe..65f73793fa2a7a 100644
--- a/javascript/operators/async_function.json
+++ b/javascript/operators/async_function.json
@@ -3,7 +3,7 @@
     "operators": {
       "async_function": {
         "__compat": {
-          "description": "<code>async function</code> expression",
+          "description": "`async function` expression",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/async_function",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-async-function-definitions",
           "tags": [
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/async_generator_function.json b/javascript/operators/async_generator_function.json
index eecb404c7fcc7b..f2aef5d68f718e 100644
--- a/javascript/operators/async_generator_function.json
+++ b/javascript/operators/async_generator_function.json
@@ -3,9 +3,12 @@
     "operators": {
       "async_generator_function": {
         "__compat": {
-          "description": "<code>async function*</code> expression",
+          "description": "`async function*` expression",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/async_function*",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-async-generator-function-definitions",
+          "tags": [
+            "web-features:async-generators"
+          ],
           "support": {
             "chrome": {
               "version_added": "63"
@@ -33,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/await.json b/javascript/operators/await.json
index 0bc1769a9bc581..b67bd105027ddf 100644
--- a/javascript/operators/await.json
+++ b/javascript/operators/await.json
@@ -37,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -78,7 +79,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/operators/bitwise_and.json b/javascript/operators/bitwise_and.json
index cd4ae40f46afb8..a835fead44eb86 100644
--- a/javascript/operators/bitwise_and.json
+++ b/javascript/operators/bitwise_and.json
@@ -3,11 +3,12 @@
     "operators": {
       "bitwise_and": {
         "__compat": {
-          "description": "Bitwise AND (<code>a &amp; b</code>)",
+          "description": "Bitwise AND (`a &amp; b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Bitwise_AND",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-BitwiseANDExpression",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/bitwise_and_assignment.json b/javascript/operators/bitwise_and_assignment.json
index 57584e9f27ff9e..458258a9321cee 100644
--- a/javascript/operators/bitwise_and_assignment.json
+++ b/javascript/operators/bitwise_and_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "bitwise_and_assignment": {
         "__compat": {
-          "description": "Bitwise AND assignment (<code>x &amp;= y</code>)",
+          "description": "Bitwise AND assignment (`x &amp;= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Bitwise_AND_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/bitwise_not.json b/javascript/operators/bitwise_not.json
index f60155517b42e4..ffe06268c91933 100644
--- a/javascript/operators/bitwise_not.json
+++ b/javascript/operators/bitwise_not.json
@@ -3,11 +3,12 @@
     "operators": {
       "bitwise_not": {
         "__compat": {
-          "description": "Bitwise NOT (<code>~a</code>)",
+          "description": "Bitwise NOT (`~a`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Bitwise_NOT",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-bitwise-not-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/bitwise_or.json b/javascript/operators/bitwise_or.json
index 02c35c2b6f5a64..1682988a01d63d 100644
--- a/javascript/operators/bitwise_or.json
+++ b/javascript/operators/bitwise_or.json
@@ -3,11 +3,12 @@
     "operators": {
       "bitwise_or": {
         "__compat": {
-          "description": "Bitwise OR (<code>a | b</code>)",
+          "description": "Bitwise OR (`a | b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Bitwise_OR",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-BitwiseORExpression",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/bitwise_or_assignment.json b/javascript/operators/bitwise_or_assignment.json
index 6dbc0cf8108c07..da455a2294ee32 100644
--- a/javascript/operators/bitwise_or_assignment.json
+++ b/javascript/operators/bitwise_or_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "bitwise_or_assignment": {
         "__compat": {
-          "description": "Bitwise OR assignment (<code>x |= y</code>)",
+          "description": "Bitwise OR assignment (`x |= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Bitwise_OR_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/bitwise_xor.json b/javascript/operators/bitwise_xor.json
index f7a58f61cd8acd..1ec8ee6e63051e 100644
--- a/javascript/operators/bitwise_xor.json
+++ b/javascript/operators/bitwise_xor.json
@@ -3,11 +3,12 @@
     "operators": {
       "bitwise_xor": {
         "__compat": {
-          "description": "Bitwise XOR (<code>a ^ b</code>)",
+          "description": "Bitwise XOR (`a ^ b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-BitwiseXORExpression",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/bitwise_xor_assignment.json b/javascript/operators/bitwise_xor_assignment.json
index d8e062e3c5c04d..6384bea2f1d3c6 100644
--- a/javascript/operators/bitwise_xor_assignment.json
+++ b/javascript/operators/bitwise_xor_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "bitwise_xor_assignment": {
         "__compat": {
-          "description": "Bitwise XOR assignment (<code>x ^= y</code>)",
+          "description": "Bitwise XOR assignment (`x ^= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/class.json b/javascript/operators/class.json
index aac3e29ca35762..4fc1b1838485d7 100644
--- a/javascript/operators/class.json
+++ b/javascript/operators/class.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/class",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-class-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:class-syntax"
           ],
           "support": {
             "chrome": {
@@ -37,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/comma.json b/javascript/operators/comma.json
index 84976a93493366..06fb8cb93becb7 100644
--- a/javascript/operators/comma.json
+++ b/javascript/operators/comma.json
@@ -7,7 +7,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Comma_operator",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-comma-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/conditional.json b/javascript/operators/conditional.json
index f034149dc160ba..a720a09255d19a 100644
--- a/javascript/operators/conditional.json
+++ b/javascript/operators/conditional.json
@@ -3,11 +3,12 @@
     "operators": {
       "conditional": {
         "__compat": {
-          "description": "Conditional operator (<code>c ? t : f</code>)",
+          "description": "Conditional operator (`c ? t : f`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Conditional_operator",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-conditional-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/decrement.json b/javascript/operators/decrement.json
index b985fda05d126b..6671bc167a2fc4 100644
--- a/javascript/operators/decrement.json
+++ b/javascript/operators/decrement.json
@@ -3,11 +3,12 @@
     "operators": {
       "decrement": {
         "__compat": {
-          "description": "Decrement (<code>--</code>)",
+          "description": "Decrement (`--`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Decrement",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-postfix-decrement-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/delete.json b/javascript/operators/delete.json
index 30e95209c832d2..3520c43d84334a 100644
--- a/javascript/operators/delete.json
+++ b/javascript/operators/delete.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/delete",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-delete-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/destructuring.json b/javascript/operators/destructuring.json
index e09da66ea39ec6..e43e987b389f6e 100644
--- a/javascript/operators/destructuring.json
+++ b/javascript/operators/destructuring.json
@@ -42,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -85,7 +86,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,7 +131,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -171,7 +174,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/operators/division.json b/javascript/operators/division.json
index 9f3e74577c4a43..1b2049b0179dcd 100644
--- a/javascript/operators/division.json
+++ b/javascript/operators/division.json
@@ -3,11 +3,12 @@
     "operators": {
       "division": {
         "__compat": {
-          "description": "Division (<code>/</code>)",
+          "description": "Division (`/`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Division",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-multiplicative-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/division_assignment.json b/javascript/operators/division_assignment.json
index 5f8a366aefbee9..ed290e45c7d0a8 100644
--- a/javascript/operators/division_assignment.json
+++ b/javascript/operators/division_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "division_assignment": {
         "__compat": {
-          "description": "Division assignment (<code>x /= y</code>)",
+          "description": "Division assignment (`x /= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Division_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/equality.json b/javascript/operators/equality.json
index bf75f2d893fb5f..95abf14e358bcc 100644
--- a/javascript/operators/equality.json
+++ b/javascript/operators/equality.json
@@ -3,11 +3,12 @@
     "operators": {
       "equality": {
         "__compat": {
-          "description": "Equality (<code>a == b</code>)",
+          "description": "Equality (`a == b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Equality",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-equality-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/exponentiation.json b/javascript/operators/exponentiation.json
index c7b0806144d081..207bac07172dea 100644
--- a/javascript/operators/exponentiation.json
+++ b/javascript/operators/exponentiation.json
@@ -3,7 +3,7 @@
     "operators": {
       "exponentiation": {
         "__compat": {
-          "description": "Exponentiation (<code>**</code>)",
+          "description": "Exponentiation (`**`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Exponentiation",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-exp-operator",
           "tags": [
@@ -40,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "51"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/exponentiation_assignment.json b/javascript/operators/exponentiation_assignment.json
index a77b38643afcbf..5328ff1e7410cd 100644
--- a/javascript/operators/exponentiation_assignment.json
+++ b/javascript/operators/exponentiation_assignment.json
@@ -3,7 +3,7 @@
     "operators": {
       "exponentiation_assignment": {
         "__compat": {
-          "description": "Exponentiation assignment (<code>x **= y</code>)",
+          "description": "Exponentiation assignment (`x **= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Exponentiation_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
@@ -40,7 +40,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "51"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/function.json b/javascript/operators/function.json
index 9b7469b984568c..309f384171755c 100644
--- a/javascript/operators/function.json
+++ b/javascript/operators/function.json
@@ -3,11 +3,12 @@
     "operators": {
       "function": {
         "__compat": {
-          "description": "<code>function</code> expression",
+          "description": "`function` expression",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/function",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-function-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -53,6 +55,9 @@
         "trailing_comma": {
           "__compat": {
             "description": "Trailing comma in parameters",
+            "tags": [
+              "web-features:functions"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -82,7 +87,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/operators/generator_function.json b/javascript/operators/generator_function.json
index 3c384f69a0b321..84442b75dcf855 100644
--- a/javascript/operators/generator_function.json
+++ b/javascript/operators/generator_function.json
@@ -3,11 +3,12 @@
     "operators": {
       "generator_function": {
         "__compat": {
-          "description": "<code>function*</code> expression",
+          "description": "`function*` expression",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/function*",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-generator-function-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:generators"
           ],
           "support": {
             "chrome": {
@@ -38,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,6 +51,9 @@
         "trailing_comma": {
           "__compat": {
             "description": "Trailing comma in parameters",
+            "tags": [
+              "web-features:generators"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -76,7 +81,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/operators/greater_than.json b/javascript/operators/greater_than.json
index 9b90cd960bc159..4bbb784e9b78f1 100644
--- a/javascript/operators/greater_than.json
+++ b/javascript/operators/greater_than.json
@@ -3,11 +3,12 @@
     "operators": {
       "greater_than": {
         "__compat": {
-          "description": "Greater than (<code>a &gt; b</code>)",
+          "description": "Greater than (`a &gt; b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Greater_than",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-relational-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/greater_than_or_equal.json b/javascript/operators/greater_than_or_equal.json
index 8eef1e46c568c9..029545020fcfcb 100644
--- a/javascript/operators/greater_than_or_equal.json
+++ b/javascript/operators/greater_than_or_equal.json
@@ -3,11 +3,12 @@
     "operators": {
       "greater_than_or_equal": {
         "__compat": {
-          "description": "Greater than or equal (<code>a &gt;= b</code>)",
+          "description": "Greater than or equal (`a &gt;= b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Greater_than_or_equal",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-relational-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/grouping.json b/javascript/operators/grouping.json
index 62626adfc40944..c1f30ae6f7935f 100644
--- a/javascript/operators/grouping.json
+++ b/javascript/operators/grouping.json
@@ -3,11 +3,12 @@
     "operators": {
       "grouping": {
         "__compat": {
-          "description": "Grouping operator <code>()</code>",
+          "description": "Grouping operator `()`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Grouping",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-grouping-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/import.json b/javascript/operators/import.json
index 936eb66de26a22..11ae226c979e9c 100644
--- a/javascript/operators/import.json
+++ b/javascript/operators/import.json
@@ -25,12 +25,12 @@
             "nodejs": [
               {
                 "version_added": "13.2.0",
-                "notes": "Dynamic <code>import</code> can be used in either CommonJS or ES module files, to import either CommonJS or ES module files. See Node's <a href='https://nodejs.org/api/esm.html#esm_import_expressions'>ECMAScript Modules documentation</a> for more details."
+                "notes": "Dynamic `import` can be used in either CommonJS or ES module files, to import either CommonJS or ES module files. See Node's [ECMAScript Modules documentation](https://nodejs.org/api/esm.html#esm_import_expressions) for more details."
               },
               {
                 "version_added": "12.17.0",
                 "version_removed": "13.0.0",
-                "notes": "Dynamic <code>import</code> can be used in either CommonJS or ES module files, to import either CommonJS or ES module files. See Node's <a href='https://nodejs.org/api/esm.html#esm_import_expressions'>ECMAScript Modules documentation</a> for more details."
+                "notes": "Dynamic `import` can be used in either CommonJS or ES module files, to import either CommonJS or ES module files. See Node's [ECMAScript Modules documentation](https://nodejs.org/api/esm.html#esm_import_expressions) for more details."
               }
             ],
             "oculus": "mirror",
@@ -41,7 +41,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -82,7 +83,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -93,7 +95,7 @@
         },
         "options_parameter": {
           "__compat": {
-            "description": "The <code>options</code> parameter",
+            "description": "The `options` parameter",
             "support": {
               "chrome": {
                 "version_added": "91"
@@ -123,7 +125,7 @@
                   "version_added": "16.14.0",
                   "version_removed": "16.15.0",
                   "partial_implementation": true,
-                  "notes": "The second parameter no longer throws a parser error, but the <code>--experimental-json-modules</code> flag is still needed to load JSON modules."
+                  "notes": "The second parameter no longer throws a parser error, but the `--experimental-json-modules` flag is still needed to load JSON modules."
                 }
               ],
               "oculus": "mirror",
@@ -138,7 +140,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/operators/import_meta.json b/javascript/operators/import_meta.json
index 93200c0625c321..aa0f7420b3d5e4 100644
--- a/javascript/operators/import_meta.json
+++ b/javascript/operators/import_meta.json
@@ -3,12 +3,9 @@
     "operators": {
       "import_meta": {
         "__compat": {
-          "description": "<code>import.meta</code>",
+          "description": "`import.meta`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/import.meta",
-          "spec_url": [
-            "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-ImportMeta",
-            "https://html.spec.whatwg.org/multipage/webappapis.html#hostgetimportmetaproperties"
-          ],
+          "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-ImportMeta",
           "support": {
             "chrome": {
               "version_added": "64"
@@ -38,7 +35,8 @@
               "version_added": "12"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -48,9 +46,9 @@
         },
         "resolve": {
           "__compat": {
-            "description": "<code>import.meta.resolve</code>",
+            "description": "`import.meta.resolve`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/import.meta/resolve",
-            "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#hostgetimportmetaproperties",
+            "spec_url": "https://html.spec.whatwg.org/multipage/webappapis.html#import-meta-resolve",
             "support": {
               "chrome": {
                 "version_added": "105"
@@ -67,10 +65,21 @@
               "ie": {
                 "version_added": false
               },
-              "nodejs": {
-                "version_added": "20.6.0",
-                "notes": "Returns a URL object instead of a string."
-              },
+              "nodejs": [
+                {
+                  "version_added": "20.8.0"
+                },
+                {
+                  "version_added": "20.6.0",
+                  "version_removed": "20.8.0",
+                  "partial_implementation": true,
+                  "notes": "Returns a `URL` object instead of a string."
+                },
+                {
+                  "version_added": "18.19.0",
+                  "version_removed": "19.0.0"
+                }
+              ],
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
@@ -79,7 +88,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/operators/in.json b/javascript/operators/in.json
index bc87a9d22c05ca..60e6331cc04080 100644
--- a/javascript/operators/in.json
+++ b/javascript/operators/in.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/in",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-relational-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/increment.json b/javascript/operators/increment.json
index 69c3bc50ac9c32..de872b95a142f9 100644
--- a/javascript/operators/increment.json
+++ b/javascript/operators/increment.json
@@ -3,11 +3,12 @@
     "operators": {
       "increment": {
         "__compat": {
-          "description": "Increment (<code>++</code>)",
+          "description": "Increment (`++`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Increment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-postfix-increment-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/inequality.json b/javascript/operators/inequality.json
index 9684baaf518f4d..cccdca78aa456f 100644
--- a/javascript/operators/inequality.json
+++ b/javascript/operators/inequality.json
@@ -3,11 +3,12 @@
     "operators": {
       "inequality": {
         "__compat": {
-          "description": "Inequality (<code>a != b</code>)",
+          "description": "Inequality (`a != b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Inequality",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-equality-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/instanceof.json b/javascript/operators/instanceof.json
index 46231c0cec391a..8788f8bdf91f94 100644
--- a/javascript/operators/instanceof.json
+++ b/javascript/operators/instanceof.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/instanceof",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-relational-operators",
+          "tags": [
+            "web-features:javascript"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -38,7 +41,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/left_shift.json b/javascript/operators/left_shift.json
index 1007f7e2a7e4f5..67435e110835be 100644
--- a/javascript/operators/left_shift.json
+++ b/javascript/operators/left_shift.json
@@ -3,11 +3,12 @@
     "operators": {
       "left_shift": {
         "__compat": {
-          "description": "Bitwise left shift (<code>a &lt;&lt; b</code>)",
+          "description": "Bitwise left shift (`a &lt;&lt; b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Left_shift",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-left-shift-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/left_shift_assignment.json b/javascript/operators/left_shift_assignment.json
index 527331893f0a96..fd1fb5a06f8a64 100644
--- a/javascript/operators/left_shift_assignment.json
+++ b/javascript/operators/left_shift_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "left_shift_assignment": {
         "__compat": {
-          "description": "Left shift assignment (<code>x &lt;&lt;= y</code>)",
+          "description": "Left shift assignment (`x &lt;&lt;= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Left_shift_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/less_than.json b/javascript/operators/less_than.json
index 428c114e2e62ca..2c3e385eb15c75 100644
--- a/javascript/operators/less_than.json
+++ b/javascript/operators/less_than.json
@@ -3,11 +3,12 @@
     "operators": {
       "less_than": {
         "__compat": {
-          "description": "Less than (<code>a &lt; b</code>)",
+          "description": "Less than (`a &lt; b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Less_than",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-relational-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/less_than_or_equal.json b/javascript/operators/less_than_or_equal.json
index 004fec4967ce35..a7483e44c7978e 100644
--- a/javascript/operators/less_than_or_equal.json
+++ b/javascript/operators/less_than_or_equal.json
@@ -3,11 +3,12 @@
     "operators": {
       "less_than_or_equal": {
         "__compat": {
-          "description": "Less than or equal (<code>a &lt;= b</code>)",
+          "description": "Less than or equal (`a &lt;= b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Less_than_or_equal",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-relational-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/logical_and.json b/javascript/operators/logical_and.json
index 445b6f4623f188..cad3388a11c432 100644
--- a/javascript/operators/logical_and.json
+++ b/javascript/operators/logical_and.json
@@ -3,11 +3,12 @@
     "operators": {
       "logical_and": {
         "__compat": {
-          "description": "Logical AND (<code>&amp;&amp;</code>)",
+          "description": "Logical AND (`&amp;&amp;`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Logical_AND",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-LogicalANDExpression",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/logical_and_assignment.json b/javascript/operators/logical_and_assignment.json
index 5f6b5f61cd224a..efe909d5ebe439 100644
--- a/javascript/operators/logical_and_assignment.json
+++ b/javascript/operators/logical_and_assignment.json
@@ -3,7 +3,7 @@
     "operators": {
       "logical_and_assignment": {
         "__compat": {
-          "description": "Logical AND assignment (<code>x &amp;&amp;= y</code>)",
+          "description": "Logical AND assignment (`x &amp;&amp;= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Logical_AND_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "support": {
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/logical_not.json b/javascript/operators/logical_not.json
index 8ff4c0633ed15a..b28fc82137b1ce 100644
--- a/javascript/operators/logical_not.json
+++ b/javascript/operators/logical_not.json
@@ -3,11 +3,12 @@
     "operators": {
       "logical_not": {
         "__compat": {
-          "description": "Logical NOT (<code>!</code>)",
+          "description": "Logical NOT (`!`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Logical_NOT",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-logical-not-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/logical_or.json b/javascript/operators/logical_or.json
index 789784497b49eb..87e946a7b220b5 100644
--- a/javascript/operators/logical_or.json
+++ b/javascript/operators/logical_or.json
@@ -3,11 +3,12 @@
     "operators": {
       "logical_or": {
         "__compat": {
-          "description": "Logical OR (<code>||</code>)",
+          "description": "Logical OR (`||`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Logical_OR",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-LogicalORExpression",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/logical_or_assignment.json b/javascript/operators/logical_or_assignment.json
index 4bd64bb6b88261..defe7c1d0baf30 100644
--- a/javascript/operators/logical_or_assignment.json
+++ b/javascript/operators/logical_or_assignment.json
@@ -3,7 +3,7 @@
     "operators": {
       "logical_or_assignment": {
         "__compat": {
-          "description": "Logical OR assignment (<code>x ||= y</code>)",
+          "description": "Logical OR assignment (`x ||= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Logical_OR_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "support": {
@@ -33,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/multiplication.json b/javascript/operators/multiplication.json
index 47ba285aacfcba..f5b6f5653403c5 100644
--- a/javascript/operators/multiplication.json
+++ b/javascript/operators/multiplication.json
@@ -3,11 +3,12 @@
     "operators": {
       "multiplication": {
         "__compat": {
-          "description": "Multiplication (<code>*</code>)",
+          "description": "Multiplication (`*`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Multiplication",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-multiplicative-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/multiplication_assignment.json b/javascript/operators/multiplication_assignment.json
index 401c65ebb302d3..aeb466800f1a3a 100644
--- a/javascript/operators/multiplication_assignment.json
+++ b/javascript/operators/multiplication_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "multiplication_assignment": {
         "__compat": {
-          "description": "Multiplication assignment (<code>x *= y</code>)",
+          "description": "Multiplication assignment (`x *= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Multiplication_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/new.json b/javascript/operators/new.json
index 7c0685fc380bb4..64b962d8db7ea7 100644
--- a/javascript/operators/new.json
+++ b/javascript/operators/new.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/new",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-new-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/new_target.json b/javascript/operators/new_target.json
index 0868f64110498f..025638c3c93f2d 100644
--- a/javascript/operators/new_target.json
+++ b/javascript/operators/new_target.json
@@ -3,11 +3,12 @@
     "operators": {
       "new_target": {
         "__compat": {
-          "description": "<code>new.target</code>",
+          "description": "`new.target`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/new.target",
           "spec_url": "https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-built-in-function-objects",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:class-syntax"
           ],
           "support": {
             "chrome": {
@@ -38,7 +39,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/null.json b/javascript/operators/null.json
index 715cf24698d3e3..b77e3888a814de 100644
--- a/javascript/operators/null.json
+++ b/javascript/operators/null.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/null",
           "spec_url": "https://tc39.es/ecma262/multipage/overview.html#sec-null-value",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/nullish_coalescing.json b/javascript/operators/nullish_coalescing.json
index f0acd2e71e7ce1..493750d4d85fcb 100644
--- a/javascript/operators/nullish_coalescing.json
+++ b/javascript/operators/nullish_coalescing.json
@@ -3,7 +3,7 @@
     "operators": {
       "nullish_coalescing": {
         "__compat": {
-          "description": "Nullish coalescing operator (<code>??</code>)",
+          "description": "Nullish coalescing operator (`??`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-CoalesceExpression",
           "tags": [
@@ -36,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/nullish_coalescing_assignment.json b/javascript/operators/nullish_coalescing_assignment.json
index 2df1a5a58a54b7..c750b51910ebec 100644
--- a/javascript/operators/nullish_coalescing_assignment.json
+++ b/javascript/operators/nullish_coalescing_assignment.json
@@ -3,7 +3,7 @@
     "operators": {
       "nullish_coalescing_assignment": {
         "__compat": {
-          "description": "Nullish coalescing assignment (<code>x ??= y</code>)",
+          "description": "Nullish coalescing assignment (`x ??= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
@@ -36,7 +36,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/object_initializer.json b/javascript/operators/object_initializer.json
index 47ac0670082585..731c9ef8e7bbd4 100644
--- a/javascript/operators/object_initializer.json
+++ b/javascript/operators/object_initializer.json
@@ -6,6 +6,9 @@
           "description": "Object initializer",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Object_initializer",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-object-initializer",
+          "tags": [
+            "web-features:object-object"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -39,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -51,7 +55,8 @@
           "__compat": {
             "description": "Computed property names",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -82,7 +87,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +101,8 @@
           "__compat": {
             "description": "Shorthand method names",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -126,7 +133,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -139,7 +147,8 @@
           "__compat": {
             "description": "Shorthand property names",
             "tags": [
-              "web-features:snapshot:ecmascript-2015"
+              "web-features:snapshot:ecmascript-2015",
+              "web-features:object-object"
             ],
             "support": {
               "chrome": {
@@ -170,7 +179,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -182,6 +192,9 @@
         "spread_properties": {
           "__compat": {
             "description": "Spread properties",
+            "tags": [
+              "web-features:object-object"
+            ],
             "support": {
               "chrome": {
                 "version_added": "60"
@@ -209,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/operators/optional_chaining.json b/javascript/operators/optional_chaining.json
index 8d356e85783607..3f8a90fa158303 100644
--- a/javascript/operators/optional_chaining.json
+++ b/javascript/operators/optional_chaining.json
@@ -3,11 +3,12 @@
     "operators": {
       "optional_chaining": {
         "__compat": {
-          "description": "Optional chaining operator (<code>?.</code>)",
+          "description": "Optional chaining operator (`?.`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Optional_chaining",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-OptionalExpression",
           "tags": [
-            "web-features:snapshot:ecmascript-2020"
+            "web-features:snapshot:ecmascript-2020",
+            "web-features:object-object"
           ],
           "support": {
             "chrome": {
@@ -36,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/property_accessors.json b/javascript/operators/property_accessors.json
index d0caa26aaff5b7..3fe42cf53a5844 100644
--- a/javascript/operators/property_accessors.json
+++ b/javascript/operators/property_accessors.json
@@ -7,7 +7,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Property_accessors",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-property-accessors",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/remainder.json b/javascript/operators/remainder.json
index 6510587453bc99..073286709ecd19 100644
--- a/javascript/operators/remainder.json
+++ b/javascript/operators/remainder.json
@@ -3,11 +3,12 @@
     "operators": {
       "remainder": {
         "__compat": {
-          "description": "Remainder (<code>%</code>)",
+          "description": "Remainder (`%`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Remainder",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-multiplicative-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/remainder_assignment.json b/javascript/operators/remainder_assignment.json
index 44b6fbf4fd23aa..5bebe226ba6483 100644
--- a/javascript/operators/remainder_assignment.json
+++ b/javascript/operators/remainder_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "remainder_assignment": {
         "__compat": {
-          "description": "Remainder assignment (<code>x %= y</code>)",
+          "description": "Remainder assignment (`x %= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Remainder_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/right_shift.json b/javascript/operators/right_shift.json
index f30ddceb3382ec..e0e80b0c82ea38 100644
--- a/javascript/operators/right_shift.json
+++ b/javascript/operators/right_shift.json
@@ -3,11 +3,12 @@
     "operators": {
       "right_shift": {
         "__compat": {
-          "description": "Bitwise right shift (<code>a &gt;&gt; b</code>)",
+          "description": "Bitwise right shift (`a &gt;&gt; b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Right_shift",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-signed-right-shift-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/right_shift_assignment.json b/javascript/operators/right_shift_assignment.json
index 5d5094a46cd426..677527f4943828 100644
--- a/javascript/operators/right_shift_assignment.json
+++ b/javascript/operators/right_shift_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "right_shift_assignment": {
         "__compat": {
-          "description": "Right shift assignment (<code>x &gt;&gt;= y</code>)",
+          "description": "Right shift assignment (`x &gt;&gt;= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Right_shift_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/spread.json b/javascript/operators/spread.json
index ff45753afb7e95..34a0f376dfddd9 100644
--- a/javascript/operators/spread.json
+++ b/javascript/operators/spread.json
@@ -46,7 +46,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -95,7 +96,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -145,7 +147,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -188,7 +191,8 @@
               "samsunginternet_android": {
                 "version_added": "8.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/javascript/operators/strict_equality.json b/javascript/operators/strict_equality.json
index 810b8eaf144770..fccff79d7ba75b 100644
--- a/javascript/operators/strict_equality.json
+++ b/javascript/operators/strict_equality.json
@@ -3,9 +3,12 @@
     "operators": {
       "strict_equality": {
         "__compat": {
-          "description": "Strict equality (<code>a === b</code>)",
+          "description": "Strict equality (`a === b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Strict_equality",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-equality-operators",
+          "tags": [
+            "web-features:javascript"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -39,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/strict_inequality.json b/javascript/operators/strict_inequality.json
index 95c868c5827dcc..8923f651c73718 100644
--- a/javascript/operators/strict_inequality.json
+++ b/javascript/operators/strict_inequality.json
@@ -3,9 +3,12 @@
     "operators": {
       "strict_inequality": {
         "__compat": {
-          "description": "Strict inequality (<code>a !== b</code>)",
+          "description": "Strict inequality (`a !== b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Strict_inequality",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-equality-operators",
+          "tags": [
+            "web-features:javascript"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -39,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/subtraction.json b/javascript/operators/subtraction.json
index dac2ecccd5e9f7..fa63c74791f9ad 100644
--- a/javascript/operators/subtraction.json
+++ b/javascript/operators/subtraction.json
@@ -3,11 +3,12 @@
     "operators": {
       "subtraction": {
         "__compat": {
-          "description": "Subtraction (<code>-</code>)",
+          "description": "Subtraction (`-`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Subtraction",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-subtraction-operator-minus",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/subtraction_assignment.json b/javascript/operators/subtraction_assignment.json
index dabac2e3c3892a..218fe2b32e01aa 100644
--- a/javascript/operators/subtraction_assignment.json
+++ b/javascript/operators/subtraction_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "subtraction_assignment": {
         "__compat": {
-          "description": "Subtraction assignment (<code>x -= y</code>)",
+          "description": "Subtraction assignment (`x -= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Subtraction_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/super.json b/javascript/operators/super.json
index 39d97df5dcba0c..f86c03b0cb5379 100644
--- a/javascript/operators/super.json
+++ b/javascript/operators/super.json
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/this.json b/javascript/operators/this.json
index 7c60a547ee2420..a04bc15a614878 100644
--- a/javascript/operators/this.json
+++ b/javascript/operators/this.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/this",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-this-keyword",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/typeof.json b/javascript/operators/typeof.json
index 3eef1e47c2bf73..4e2984dc433e90 100644
--- a/javascript/operators/typeof.json
+++ b/javascript/operators/typeof.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/typeof",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-typeof-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/unary_negation.json b/javascript/operators/unary_negation.json
index 9d4a8cb496811e..8c05467a8dbde6 100644
--- a/javascript/operators/unary_negation.json
+++ b/javascript/operators/unary_negation.json
@@ -3,11 +3,12 @@
     "operators": {
       "unary_negation": {
         "__compat": {
-          "description": "Unary negation (<code>-</code>)",
+          "description": "Unary negation (`-`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Unary_negation",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-unary-minus-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/unary_plus.json b/javascript/operators/unary_plus.json
index 5df0ab138efe25..a9ad220842514b 100644
--- a/javascript/operators/unary_plus.json
+++ b/javascript/operators/unary_plus.json
@@ -3,11 +3,12 @@
     "operators": {
       "unary_plus": {
         "__compat": {
-          "description": "Unary plus (<code>+</code>)",
+          "description": "Unary plus (`+`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Unary_plus",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-unary-plus-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/unsigned_right_shift.json b/javascript/operators/unsigned_right_shift.json
index 70857e42e897ba..271448b6332052 100644
--- a/javascript/operators/unsigned_right_shift.json
+++ b/javascript/operators/unsigned_right_shift.json
@@ -3,11 +3,12 @@
     "operators": {
       "unsigned_right_shift": {
         "__compat": {
-          "description": "Bitwise unsigned right shift (<code>a &gt;&gt;&gt; b</code>)",
+          "description": "Bitwise unsigned right shift (`a &gt;&gt;&gt; b`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-unsigned-right-shift-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/unsigned_right_shift_assignment.json b/javascript/operators/unsigned_right_shift_assignment.json
index ed5a2f7d9507c9..5515f79f075d99 100644
--- a/javascript/operators/unsigned_right_shift_assignment.json
+++ b/javascript/operators/unsigned_right_shift_assignment.json
@@ -3,11 +3,12 @@
     "operators": {
       "unsigned_right_shift_assignment": {
         "__compat": {
-          "description": "Unsigned right shift assignment (<code>x &gt;&gt;&gt;= y</code>)",
+          "description": "Unsigned right shift assignment (`x &gt;&gt;&gt;= y`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Unsigned_right_shift_assignment",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-assignment-operators",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/void.json b/javascript/operators/void.json
index 116a0b9f23c6dc..3657a0cd92ef9b 100644
--- a/javascript/operators/void.json
+++ b/javascript/operators/void.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/void",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-void-operator",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -43,7 +44,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/yield.json b/javascript/operators/yield.json
index a1daf6357319c5..a35103cffd99b9 100644
--- a/javascript/operators/yield.json
+++ b/javascript/operators/yield.json
@@ -6,7 +6,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/yield",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#prod-YieldExpression",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:generators"
           ],
           "support": {
             "chrome": {
@@ -22,8 +23,8 @@
             "firefox": {
               "version_added": "26",
               "notes": [
-                "Starting with Firefox 33, the parsing of the <code>yield</code> expression has been updated to conform with the ES2015 specification.",
-                "Starting with Firefox 29, an <code>IteratorResult</code> object returned for completed generator function."
+                "Starting with Firefox 33, the parsing of the `yield` expression has been updated to conform with the ES2015 specification.",
+                "Starting with Firefox 29, an `IteratorResult` object returned for completed generator function."
               ]
             },
             "firefox_android": "mirror",
@@ -41,7 +42,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/operators/yield_star.json b/javascript/operators/yield_star.json
index 13b94db57beb25..585a27df6f5c58 100644
--- a/javascript/operators/yield_star.json
+++ b/javascript/operators/yield_star.json
@@ -3,11 +3,12 @@
     "operators": {
       "yield_star": {
         "__compat": {
-          "description": "<code>yield*</code>",
+          "description": "`yield*`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/yield*",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-generator-function-definitions-runtime-semantics-evaluation",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:generators"
           ],
           "support": {
             "chrome": {
@@ -22,7 +23,7 @@
             },
             "firefox": {
               "version_added": "27",
-              "notes": "Starting with Firefox 33, the parsing of the <code>yield</code> expression has been updated to conform with the ES2015 specification."
+              "notes": "Starting with Firefox 33, the parsing of the `yield` expression has been updated to conform with the ES2015 specification."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -39,7 +40,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/regular_expressions.json b/javascript/regular_expressions.json
index 476e3aa4777e69..2d1d158d2ac277 100644
--- a/javascript/regular_expressions.json
+++ b/javascript/regular_expressions.json
@@ -3,11 +3,12 @@
     "regular_expressions": {
       "backreference": {
         "__compat": {
-          "description": "Backreference: <code>\\1</code>, <code>\\2</code>",
+          "description": "Backreference: `\\1`, `\\2`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Backreference",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-DecimalEscape",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -42,7 +43,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -53,11 +55,12 @@
       },
       "capturing_group": {
         "__compat": {
-          "description": "Capturing group: <code>(...)</code>",
+          "description": "Capturing group: `(...)`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Capturing_group",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Atom",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -92,7 +95,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -103,11 +107,12 @@
       },
       "character_class": {
         "__compat": {
-          "description": "Character class: <code>[...]</code>, <code>[^...]</code>",
+          "description": "Character class: `[...]`, `[^...]`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Character_class",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-CharacterClass",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -142,7 +147,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -153,11 +159,12 @@
       },
       "character_class_escape": {
         "__compat": {
-          "description": "Character class escape: <code>\\d</code>, <code>\\D</code>, <code>\\w</code>, <code>\\W</code>, <code>\\s</code>, <code>\\S</code>",
+          "description": "Character class escape: `\\d`, `\\D`, `\\w`, `\\W`, `\\s`, `\\S`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Character_class_escape",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-CharacterClassEscape",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -192,7 +199,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -203,11 +211,12 @@
       },
       "character_escape": {
         "__compat": {
-          "description": "Character escape: <code>\\n</code>, <code>\\x</code>",
+          "description": "Character escape: `\\n`, `\\x`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Character_escape",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-CharacterEscape",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -242,7 +251,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -252,7 +262,10 @@
         },
         "unicode": {
           "__compat": {
-            "description": "Unicode character escape: <code>\\u{...}</code>",
+            "description": "Unicode character escape: `\\u{...}`",
+            "tags": [
+              "web-features:regexp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -282,7 +295,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -294,11 +308,12 @@
       },
       "disjunction": {
         "__compat": {
-          "description": "Disjunction: <code>|</code>",
+          "description": "Disjunction: `|`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Disjunction",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Disjunction",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -333,7 +348,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -344,11 +360,12 @@
       },
       "input_boundary_assertion": {
         "__compat": {
-          "description": "Input boundary assertion: <code>^</code>, <code>$</code>",
+          "description": "Input boundary assertion: `^`, `$`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Input_boundary_assertion",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Assertion",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -383,7 +400,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -394,11 +412,12 @@
       },
       "literal_character": {
         "__compat": {
-          "description": "Literal character: <code>a</code>, <code>b</code>",
+          "description": "Literal character: `a`, `b`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Literal_character",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-PatternCharacter",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -433,7 +452,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -444,11 +464,12 @@
       },
       "lookahead_assertion": {
         "__compat": {
-          "description": "Lookahead assertion: <code>(?=...)</code>, <code>(?!...)</code>",
+          "description": "Lookahead assertion: `(?=...)`, `(?!...)`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Lookahead_assertion",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Assertion",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -483,7 +504,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -494,9 +516,12 @@
       },
       "lookbehind_assertion": {
         "__compat": {
-          "description": "Lookbehind assertion: <code>(?&lt;=...)</code>, <code>(?&lt;!...)</code>",
+          "description": "Lookbehind assertion: `(?&lt;=...)`, `(?&lt;!...)`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Lookbehind_assertion",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Assertion",
+          "tags": [
+            "web-features:regexp"
+          ],
           "support": {
             "chrome": {
               "version_added": "62"
@@ -524,7 +549,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -535,28 +561,30 @@
       },
       "modifier": {
         "__compat": {
-          "description": "Modifier: <code>(?ims-ims:...)</code>",
+          "description": "Modifier: `(?ims-ims:...)`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Modifier",
           "spec_url": "https://github.com/tc39/proposal-regexp-modifiers#syntax",
+          "tags": [
+            "web-features:regexp"
+          ],
           "support": {
             "chrome": {
               "version_added": "125"
             },
             "chrome_android": "mirror",
             "deno": {
-              "version_added": false
+              "version_added": "1.44"
             },
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/1899813"
+              "version_added": "132"
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
             "nodejs": {
-              "version_added": false
+              "version_added": "23.0.0"
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -566,10 +594,11 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
-            "experimental": true,
+            "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
@@ -577,9 +606,12 @@
       },
       "named_backreference": {
         "__compat": {
-          "description": "Named backreference: <code>\\k&lt;name&gt;</code>",
+          "description": "Named backreference: `\\k&lt;name&gt;`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Named_backreference",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-AtomEscape",
+          "tags": [
+            "web-features:regexp"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -607,7 +639,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -618,9 +651,12 @@
       },
       "named_capturing_group": {
         "__compat": {
-          "description": "Named capture group: <code>(?&lt;name&gt;...)</code>",
+          "description": "Named capture group: `(?&lt;name&gt;...)`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Named_capturing_group",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Atom",
+          "tags": [
+            "web-features:regexp"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -648,7 +684,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -659,6 +696,9 @@
         "duplicate_named_capturing_groups": {
           "__compat": {
             "description": "Duplicate names in different disjunction alternatives are allowed",
+            "tags": [
+              "web-features:regexp"
+            ],
             "support": {
               "chrome": {
                 "version_added": "125"
@@ -686,7 +726,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -698,11 +739,12 @@
       },
       "non_capturing_group": {
         "__compat": {
-          "description": "Non-capturing group: <code>(?:...)</code>",
+          "description": "Non-capturing group: `(?:...)`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Non-capturing_group",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Atom",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -737,7 +779,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -748,11 +791,12 @@
       },
       "quantifier": {
         "__compat": {
-          "description": "Quantifier: <code>*</code>, <code>+</code>, <code>?</code>, <code>{n}</code>, <code>{n,}</code>, <code>{n,m}</code>",
+          "description": "Quantifier: `*`, `+`, `?`, `{n}`, `{n,}`, `{n,m}`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Quantifier",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Quantifier",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -787,7 +831,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -798,9 +843,12 @@
       },
       "unicode_character_class_escape": {
         "__compat": {
-          "description": "Unicode character class escape: <code>\\p{...}</code>, <code>\\P{...}</code>",
+          "description": "Unicode character class escape: `\\p{...}`, `\\P{...}`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Unicode_character_class_escape",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-CharacterClassEscape",
+          "tags": [
+            "web-features:regexp"
+          ],
           "support": {
             "chrome": {
               "version_added": "64"
@@ -828,7 +876,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -839,11 +888,12 @@
       },
       "wildcard": {
         "__compat": {
-          "description": "Wildcard: <code>.</code>",
+          "description": "Wildcard: `.`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Wildcard",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Atom",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -878,7 +928,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -889,11 +940,12 @@
       },
       "word_boundary_assertion": {
         "__compat": {
-          "description": "Word boundary assertion: <code>\\b</code>, <code>\\B</code>",
+          "description": "Word boundary assertion: `\\b`, `\\B`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Regular_expressions/Word_boundary_assertion",
           "spec_url": "https://tc39.es/ecma262/multipage/text-processing.html#prod-Assertion",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:regexp"
           ],
           "support": {
             "chrome": {
@@ -928,7 +980,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/javascript/statements.json b/javascript/statements.json
index cf35a7b111845c..dff557ddcac717 100644
--- a/javascript/statements.json
+++ b/javascript/statements.json
@@ -3,7 +3,7 @@
     "statements": {
       "async_function": {
         "__compat": {
-          "description": "<code>async function</code> statement",
+          "description": "`async function` statement",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/async_function",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-async-function-definitions",
           "tags": [
@@ -38,7 +38,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -49,9 +50,12 @@
       },
       "async_generator_function": {
         "__compat": {
-          "description": "<code>async function*</code> statement",
+          "description": "`async function*` statement",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/async_function*",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-async-generator-function-definitions",
+          "tags": [
+            "web-features:async-generators"
+          ],
           "support": {
             "chrome": {
               "version_added": "63"
@@ -79,7 +83,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -93,7 +98,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/block",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-block",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -128,7 +134,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -142,7 +149,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/break",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-break-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -177,7 +185,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -230,7 +239,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -260,8 +270,8 @@
             "firefox": {
               "version_added": "36",
               "notes": [
-                "Before Firefox 13, <code>const</code> is implemented, but re-assignment is not failing.",
-                "Before Firefox 46, a <code>TypeError</code> was thrown on redeclaration instead of a <code>SyntaxError</code>."
+                "Before Firefox 13, `const` is implemented, but re-assignment is not failing.",
+                "Before Firefox 46, a `TypeError` was thrown on redeclaration instead of a `SyntaxError`."
               ]
             },
             "firefox_android": "mirror",
@@ -283,7 +293,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -297,7 +308,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/continue",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-continue-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -332,7 +344,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -345,6 +358,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/debugger",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-debugger-statement",
+          "tags": [
+            "web-features:javascript"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -378,7 +394,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -389,11 +406,12 @@
       },
       "do_while": {
         "__compat": {
-          "description": "<code>do...while</code>",
+          "description": "`do...while`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/do...while",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-do-while-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -428,7 +446,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -439,11 +458,12 @@
       },
       "empty": {
         "__compat": {
-          "description": "Empty statement (<code>;</code>)",
+          "description": "Empty statement (`;`)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/Empty",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-empty-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -478,7 +498,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -514,7 +535,7 @@
             },
             "nodejs": {
               "version_added": "13.2.0",
-              "notes": "Modules must either have a filename ending in <code>.mjs</code>, or the nearest parent <code>package.json</code> file must contain <code>\"type\": \"module\"</code>. See Node's <a href='https://nodejs.org/api/esm.html#esm_enabling'>ECMAScript Modules documentation</a> for more details."
+              "notes": "Modules must either have a filename ending in `.mjs`, or the nearest parent `package.json` file must contain `\"type\": \"module\"`. See Node's [ECMAScript Modules documentation](https://nodejs.org/api/esm.html#esm_enabling) for more details."
             },
             "oculus": "mirror",
             "opera": "mirror",
@@ -524,7 +545,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -534,7 +556,7 @@
         },
         "default": {
           "__compat": {
-            "description": "<code>default</code> keyword with <code>export</code>",
+            "description": "`default` keyword with `export`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/export",
             "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-scripts-and-modules.html#sec-exports",
             "tags": [
@@ -560,7 +582,7 @@
               },
               "nodejs": {
                 "version_added": "13.2.0",
-                "notes": "Modules must either have a filename ending in <code>.mjs</code>, or the nearest parent <code>package.json</code> file must contain <code>\"type\": \"module\"</code>. See Node's <a href='https://nodejs.org/api/esm.html#esm_enabling'>ECMAScript Modules documentation</a> for more details."
+                "notes": "Modules must either have a filename ending in `.mjs`, or the nearest parent `package.json` file must contain `\"type\": \"module\"`. See Node's [ECMAScript Modules documentation](https://nodejs.org/api/esm.html#esm_enabling) for more details."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -570,7 +592,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -581,7 +604,7 @@
         },
         "namespace": {
           "__compat": {
-            "description": "<code>export * as namespace</code>",
+            "description": "`export * as namespace`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/export",
             "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-scripts-and-modules.html#sec-exports",
             "support": {
@@ -602,7 +625,7 @@
               },
               "nodejs": {
                 "version_added": "13.2.0",
-                "notes": "Modules must either have a filename ending in <code>.mjs</code>, or the nearest parent <code>package.json</code> file must contain <code>\"type\": \"module\"</code>. See Node's <a href='https://nodejs.org/api/esm.html#esm_enabling'>ECMAScript Modules documentation</a> for more details."
+                "notes": "Modules must either have a filename ending in `.mjs`, or the nearest parent `package.json` file must contain `\"type\": \"module\"`. See Node's [ECMAScript Modules documentation](https://nodejs.org/api/esm.html#esm_enabling) for more details."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -612,7 +635,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -627,7 +651,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/for",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-for-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -662,7 +687,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -673,11 +699,12 @@
       },
       "for_await_of": {
         "__compat": {
-          "description": "<code>for await...of</code>",
+          "description": "`for await...of`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/for-await...of",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-for-in-and-for-of-statements",
           "tags": [
-            "web-features:snapshot:ecmascript-2018"
+            "web-features:snapshot:ecmascript-2018",
+            "web-features:async-iterators"
           ],
           "support": {
             "chrome": {
@@ -706,7 +733,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -717,11 +745,12 @@
       },
       "for_in": {
         "__compat": {
-          "description": "<code>for...in</code>",
+          "description": "`for...in`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/for...in",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-for-in-and-for-of-statements",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -756,7 +785,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -767,11 +797,12 @@
       },
       "for_of": {
         "__compat": {
-          "description": "<code>for...of</code>",
+          "description": "`for...of`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/for...of",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-for-in-and-for-of-statements",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:iterators"
           ],
           "support": {
             "chrome": {
@@ -786,7 +817,7 @@
             },
             "firefox": {
               "version_added": "13",
-              "notes": "Before Firefox 51, using the <code>for...of</code> loop construct with the <code>const</code> keyword threw a <code>SyntaxError</code> (\"missing = in const declaration\")."
+              "notes": "Before Firefox 51, using the `for...of` loop construct with the `const` keyword threw a `SyntaxError` (\"missing = in const declaration\")."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -803,7 +834,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -815,7 +847,8 @@
           "__compat": {
             "description": "async iterators",
             "tags": [
-              "web-features:snapshot:ecmascript-2018"
+              "web-features:snapshot:ecmascript-2018",
+              "web-features:async-iterators"
             ],
             "support": {
               "chrome": {
@@ -846,7 +879,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -858,6 +892,9 @@
         "closing_iterators": {
           "__compat": {
             "description": "Closing iterators",
+            "tags": [
+              "web-features:iterators"
+            ],
             "support": {
               "chrome": {
                 "version_added": "51"
@@ -887,7 +924,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -899,11 +937,12 @@
       },
       "function": {
         "__compat": {
-          "description": "<code>function</code> statement",
+          "description": "`function` statement",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/function",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-function-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:functions"
           ],
           "support": {
             "chrome": {
@@ -938,7 +977,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -949,6 +989,9 @@
         "trailing_comma_in_parameters": {
           "__compat": {
             "description": "Trailing comma in parameters",
+            "tags": [
+              "web-features:functions"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -978,7 +1021,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -990,11 +1034,12 @@
       },
       "generator_function": {
         "__compat": {
-          "description": "<code>function*</code> statement",
+          "description": "`function*` statement",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/function*",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-generator-function-definitions",
           "tags": [
-            "web-features:snapshot:ecmascript-2015"
+            "web-features:snapshot:ecmascript-2015",
+            "web-features:generators"
           ],
           "support": {
             "chrome": {
@@ -1025,7 +1070,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1035,9 +1081,10 @@
         },
         "IteratorResult_object": {
           "__compat": {
-            "description": "<code>IteratorResult</code> object instead of throwing",
+            "description": "`IteratorResult` object instead of throwing",
             "tags": [
-              "web-features:snapshot:ecmascript-2016"
+              "web-features:snapshot:ecmascript-2016",
+              "web-features:generators"
             ],
             "support": {
               "chrome": {
@@ -1068,7 +1115,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1079,9 +1127,10 @@
         },
         "not_constructable_with_new": {
           "__compat": {
-            "description": "Not constructable with <code>new</code> (ES2016)",
+            "description": "Not constructable with `new` (ES2016)",
             "tags": [
-              "web-features:snapshot:ecmascript-2016"
+              "web-features:snapshot:ecmascript-2016",
+              "web-features:generators"
             ],
             "support": {
               "chrome": {
@@ -1112,7 +1161,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1124,6 +1174,9 @@
         "trailing_comma_in_parameters": {
           "__compat": {
             "description": "Trailing comma in parameters",
+            "tags": [
+              "web-features:generators"
+            ],
             "support": {
               "chrome": {
                 "version_added": "58"
@@ -1153,7 +1206,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1165,11 +1219,12 @@
       },
       "if_else": {
         "__compat": {
-          "description": "<code>if...else</code>",
+          "description": "`if...else`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/if...else",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-if-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -1204,7 +1259,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1241,12 +1297,12 @@
             "nodejs": [
               {
                 "version_added": "13.2.0",
-                "notes": "Modules must either have a filename ending in <code>.mjs</code>, or the nearest parent <code>package.json</code> file must contain <code>\"type\": \"module\"</code>. See Node's <a href='https://nodejs.org/api/esm.html#esm_enabling'>ECMAScript Modules documentation</a> for more details."
+                "notes": "Modules must either have a filename ending in `.mjs`, or the nearest parent `package.json` file must contain `\"type\": \"module\"`. See Node's [ECMAScript Modules documentation](https://nodejs.org/api/esm.html#esm_enabling) for more details."
               },
               {
                 "version_added": "12.17.0",
                 "version_removed": "13.0.0",
-                "notes": "Modules must either have a filename ending in <code>.mjs</code>, or the nearest parent <code>package.json</code> file must contain <code>\"type\": \"module\"</code>. See Node's <a href='https://nodejs.org/api/esm.html#esm_enabling'>ECMAScript Modules documentation</a> for more details."
+                "notes": "Modules must either have a filename ending in `.mjs`, or the nearest parent `package.json` file must contain `\"type\": \"module\"`. See Node's [ECMAScript Modules documentation](https://nodejs.org/api/esm.html#esm_enabling) for more details."
               }
             ],
             "oculus": "mirror",
@@ -1257,7 +1313,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1298,7 +1355,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1309,7 +1367,7 @@
         },
         "import_assertions": {
           "__compat": {
-            "description": "Import attributes with <code>assert</code> syntax (formerly import assertions)",
+            "description": "Import attributes with `assert` syntax (formerly import assertions)",
             "support": {
               "chrome": {
                 "version_added": "91",
@@ -1343,7 +1401,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1353,7 +1412,7 @@
           },
           "type_css": {
             "__compat": {
-              "description": "<code>assert {type: 'css'}</code>",
+              "description": "`assert {type: 'css'}`",
               "support": {
                 "chrome": {
                   "version_added": "93",
@@ -1388,7 +1447,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1399,7 +1459,7 @@
           },
           "type_json": {
             "__compat": {
-              "description": "<code>assert {type: 'json'}</code>",
+              "description": "`assert {type: 'json'}`",
               "support": {
                 "chrome": {
                   "version_added": "91",
@@ -1439,7 +1499,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1451,7 +1512,9 @@
         },
         "import_attributes": {
           "__compat": {
-            "description": "Import attributes (<code>with</code> syntax)",
+            "description": "Import attributes (`with` syntax)",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/import/with",
+            "spec_url": "https://tc39.es/proposal-import-attributes/#prod-WithClause",
             "support": {
               "chrome": {
                 "version_added": "123"
@@ -1486,7 +1549,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1496,7 +1560,7 @@
           },
           "type_css": {
             "__compat": {
-              "description": "<code>with {type: 'css'}</code>",
+              "description": "`with {type: 'css'}`",
               "tags": [
                 "web-features:css-modules"
               ],
@@ -1527,7 +1591,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -1538,7 +1603,7 @@
           },
           "type_json": {
             "__compat": {
-              "description": "<code>with {type: 'json'}</code>",
+              "description": "`with {type: 'json'}`",
               "tags": [
                 "web-features:json-modules"
               ],
@@ -1576,7 +1641,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -1620,7 +1686,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1659,7 +1726,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1674,7 +1742,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/label",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-labelled-statements",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -1709,7 +1778,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1734,7 +1804,7 @@
                 "version_added": "41",
                 "version_removed": "49",
                 "partial_implementation": true,
-                "notes": "<a href='https://developer.mozilla.org/docs/Web/JavaScript/Reference/Strict_mode'>Strict mode</a> is required."
+                "notes": "[Strict mode](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Strict_mode) is required."
               }
             ],
             "chrome_android": "mirror",
@@ -1749,22 +1819,22 @@
                 "version_added": "12",
                 "version_removed": "14",
                 "partial_implementation": true,
-                "notes": "In Edge 12 and 13, <code>let</code> within a <code>for</code> loop initializer does not create a separate variable for each loop iteration as defined by ES2015. Instead, it behaves as though the loop were wrapped in a scoping block with the <code>let</code> immediately before the loop."
+                "notes": "In Edge 12 and 13, `let` within a `for` loop initializer does not create a separate variable for each loop iteration as defined by ES2015. Instead, it behaves as though the loop were wrapped in a scoping block with the `let` immediately before the loop."
               }
             ],
             "firefox": {
               "version_added": "44",
               "notes": [
-                "Before Firefox 44, <code>let</code> is only available to code blocks in HTML wrapped in a <code>&lt;script type=\"application/javascript;version=1.7\"&gt;</code> block (or higher version) and has different semantics (e.g. no temporal dead zone).",
-                "Before Firefox 46, a <code>TypeError</code> is thrown on redeclaration instead of a <code>SyntaxError</code>.",
-                "Firefox 54 adds support of <code>let</code> in workers."
+                "Before Firefox 44, `let` is only available to code blocks in HTML wrapped in a `&lt;script type=\"application/javascript;version=1.7\"&gt;` block (or higher version) and has different semantics (e.g. no temporal dead zone).",
+                "Before Firefox 46, a `TypeError` is thrown on redeclaration instead of a `SyntaxError`.",
+                "Firefox 54 adds support of `let` in workers."
               ]
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": "11",
               "partial_implementation": true,
-              "notes": "In Internet Explorer, <code>let</code> within a <code>for</code> loop initializer does not create a separate variable for each loop iteration as defined by ES2015. Instead, it behaves as though the loop were wrapped in a scoping block with the <code>let</code> immediately before the loop."
+              "notes": "In Internet Explorer, `let` within a `for` loop initializer does not create a separate variable for each loop iteration as defined by ES2015. Instead, it behaves as though the loop were wrapped in a scoping block with the `let` immediately before the loop."
             },
             "nodejs": {
               "version_added": "6.0.0"
@@ -1781,7 +1851,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1795,7 +1866,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/return",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-return-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -1830,7 +1902,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1843,6 +1916,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/switch",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-switch-statement",
+          "tags": [
+            "web-features:javascript"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1876,7 +1952,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1890,7 +1967,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/throw",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-throw-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -1925,7 +2003,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1936,11 +2015,12 @@
       },
       "try_catch": {
         "__compat": {
-          "description": "<code>try...catch</code>",
+          "description": "`try...catch`",
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/try...catch",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-try-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-3"
+            "web-features:snapshot:ecmascript-3",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -1975,7 +2055,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2013,7 +2094,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2028,7 +2110,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/var",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-variable-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -2063,7 +2146,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2077,7 +2161,8 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/while",
           "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-while-statement",
           "tags": [
-            "web-features:snapshot:ecmascript-1"
+            "web-features:snapshot:ecmascript-1",
+            "web-features:javascript"
           ],
           "support": {
             "chrome": {
@@ -2112,7 +2197,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2161,7 +2247,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/lint/fix.ts b/lint/fix.ts
index 71df5db4486f78..c6323f8e350392 100644
--- a/lint/fix.ts
+++ b/lint/fix.ts
@@ -7,6 +7,8 @@ import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 
 import esMain from 'es-main';
+import yargs from 'yargs';
+import { hideBin } from 'yargs/helpers';
 import chalk from 'chalk-template';
 
 import fixBrowserOrder from './fixer/browser-order.js';
@@ -19,14 +21,36 @@ import fixLinks from './fixer/links.js';
 import fixMDNURLs from './fixer/mdn-urls.js';
 import fixStatus from './fixer/status.js';
 import fixMirror from './fixer/mirror.js';
+import { LintOptions } from './utils.js';
 
 const dirname = fileURLToPath(new URL('.', import.meta.url));
 
+const FIXES = Object.freeze({
+  descriptions: fixDescriptions,
+  flags: fixFlags,
+  links: fixLinks,
+  mdn_urls: fixMDNURLs,
+  status: fixStatus,
+  mirror: fixMirror,
+  browser_order: fixBrowserOrder,
+  feature_order: fixFeatureOrder,
+  property_order: fixPropertyOrder,
+  statement_order: fixStatementOrder,
+});
+
 /**
  * Recursively load one or more files and/or directories passed as arguments and perform automatic fixes.
+ * @param options The lint options
  * @param files The files to load and perform fix upon
  */
-const load = async (...files: string[]): Promise<void> => {
+const load = async (
+  options: LintOptions,
+  ...files: string[]
+): Promise<void> => {
+  const fixes = Object.entries(FIXES)
+    .filter(([key]) => !options.only || options.only.includes(key))
+    .map(([, fix]) => fix);
+
   for (let file of files) {
     if (file.indexOf(dirname) !== 0) {
       file = path.resolve(dirname, '..', file);
@@ -43,34 +67,46 @@ const load = async (...files: string[]): Promise<void> => {
 
     if (fsStats.isFile()) {
       if (path.extname(file) === '.json' && !file.endsWith('.schema.json')) {
-        if (!file.includes('/browsers/')) {
-          fixBrowserOrder(file);
-          fixFeatureOrder(file);
-          fixStatementOrder(file);
-          fixDescriptions(file);
-          fixFlags(file);
-          fixLinks(file);
-          fixMDNURLs(file);
-          fixStatus(file);
-          fixMirror(file);
+        for (const fix of fixes) {
+          await fix(file);
         }
-        fixPropertyOrder(file);
       }
     } else {
       const subFiles = (await fs.readdir(file)).map((subfile) =>
         path.join(file, subfile),
       );
 
-      await load(...subFiles);
+      await load(options, ...subFiles);
     }
   }
 };
 
+/**
+ * Fix any errors in specified file(s) and/or folder(s), or all of BCD
+ * @param files The file(s) and/or folder(s) to fix. Leave undefined for everything.
+ * @param options Lint options
+ * @returns Promise<void>
+ */
+const main = async (files: string[], options: LintOptions) => {
+  await load(options, ...files);
+};
+
 if (esMain(import.meta)) {
-  if (process.argv[2]) {
-    await load(process.argv[2]);
-  } else {
-    await load(
+  const { argv } = yargs(hideBin(process.argv))
+    .command('$0 [files..]', false, (yargs) =>
+      yargs.positional('files...', {
+        description: 'The files to fix (leave blank to test everything)',
+        type: 'string',
+      }),
+    )
+    .option('only', {
+      array: true,
+      description: 'The checks to run',
+    })
+    .choices('only', Object.keys(FIXES));
+
+  const {
+    files = [
       'api',
       'browsers',
       'css',
@@ -82,8 +118,11 @@ if (esMain(import.meta)) {
       'webassembly',
       'webdriver',
       'webextensions',
-    );
-  }
+    ],
+    only,
+  } = argv as { files?: string[] } & LintOptions;
+
+  await main(files, { only });
 }
 
 export default load;
diff --git a/lint/fixer/browser-order.ts b/lint/fixer/browser-order.ts
index b4e43bbb1760b9..4143abd7274be6 100644
--- a/lint/fixer/browser-order.ts
+++ b/lint/fixer/browser-order.ts
@@ -44,6 +44,10 @@ export const orderSupportBlock = (
  * @param filename The path to the file to fix in-place
  */
 const fixBrowserOrder = (filename: string): void => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   let actual = fs.readFileSync(filename, 'utf-8').trim();
   let expected = JSON.stringify(JSON.parse(actual, orderSupportBlock), null, 2);
 
diff --git a/lint/fixer/descriptions.ts b/lint/fixer/descriptions.ts
index 26b04d767c5c71..124da272450137 100644
--- a/lint/fixer/descriptions.ts
+++ b/lint/fixer/descriptions.ts
@@ -12,6 +12,10 @@ import walk from '../../utils/walk.js';
  * @param filename The filename containing compatibility info
  */
 const fixDescriptions = (filename: string): void => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   let actual = fs.readFileSync(filename, 'utf-8').trim();
 
   const data = JSON.parse(actual);
diff --git a/lint/fixer/feature-order.ts b/lint/fixer/feature-order.ts
index 83714dfeca31ab..a7ddf292823a56 100644
--- a/lint/fixer/feature-order.ts
+++ b/lint/fixer/feature-order.ts
@@ -35,6 +35,10 @@ export const orderFeatures = (_: string, value: Identifier): Identifier => {
  * @param filename The filename to perform fix upon
  */
 const fixFeatureOrder = (filename: string): void => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   let actual = fs.readFileSync(filename, 'utf-8').trim();
   let expected = JSON.stringify(JSON.parse(actual, orderFeatures), null, 2);
 
diff --git a/lint/fixer/flags.ts b/lint/fixer/flags.ts
index 7aacbe1ed2e264..150188ac0d7ba8 100644
--- a/lint/fixer/flags.ts
+++ b/lint/fixer/flags.ts
@@ -58,6 +58,10 @@ export const removeIrrelevantFlags = (
  * @param filename The filename containing compatibility info
  */
 const fixFlags = (filename: string): void => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   let actual = fs.readFileSync(filename, 'utf-8').trim();
 
   const data = JSON.parse(actual);
diff --git a/lint/fixer/links.ts b/lint/fixer/links.ts
index 982e660c7c3479..0c0f28f0fb2f08 100644
--- a/lint/fixer/links.ts
+++ b/lint/fixer/links.ts
@@ -10,9 +10,13 @@ import { processData } from '../linter/test-links.js';
  * Fix issues with links throughout the BCD files
  * @param filename The name of the file to fix
  */
-const fixLinks = (filename: string): void => {
+const fixLinks = async (filename: string): Promise<void> => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   const original = fs.readFileSync(filename, 'utf-8').trim();
-  const errors = processData(original);
+  const errors = await processData(original);
   let data = original;
 
   if (IS_WINDOWS) {
diff --git a/lint/fixer/mdn-urls.ts b/lint/fixer/mdn-urls.ts
index 237e140558c292..aeb63f84c7af5e 100644
--- a/lint/fixer/mdn-urls.ts
+++ b/lint/fixer/mdn-urls.ts
@@ -12,6 +12,10 @@ import walk from '../../utils/walk.js';
  * @param filename The filename containing compatibility info
  */
 const fixMDNURLs = (filename: string): void => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   let actual = fs.readFileSync(filename, 'utf-8').trim();
 
   const data = JSON.parse(actual);
diff --git a/lint/fixer/mirror.ts b/lint/fixer/mirror.ts
index 0ac56f028d9adb..79fdda426004a9 100644
--- a/lint/fixer/mirror.ts
+++ b/lint/fixer/mirror.ts
@@ -45,6 +45,37 @@ export const isMirrorEquivalent = (
   return stringify(mirrored) === stringify(original);
 };
 
+/**
+ * Check to see if mirroring is required
+ * @param supportData The support statement to test
+ * @param browser The browser to mirror for
+ * @returns Whether mirroring is required
+ */
+export const isMirrorRequired = (
+  supportData: Partial<Record<BrowserName, any>>,
+  browser: string,
+): boolean => {
+  const current = bcd.browsers[browser];
+  const upstream: BrowserName | undefined = current.upstream;
+
+  if (!upstream || !supportData[browser] || !supportData[upstream]) {
+    return false;
+  }
+
+  if (
+    supportData[browser].version_added === false &&
+    supportData[upstream].version_added === 'preview' &&
+    !current.preview_name
+  ) {
+    // Allow `"version_added": false` if
+    // - upstream only has preview support, and
+    // - target does not have preview versions.
+    return false;
+  }
+
+  return true;
+};
+
 /**
  * Set the support statement for each browser to mirror if it matches mirroring
  * @param bcd The compat data to update
@@ -52,7 +83,10 @@ export const isMirrorEquivalent = (
 export const mirrorIfEquivalent = (bcd: CompatData): void => {
   for (const { compat } of walk(undefined, bcd)) {
     for (const browser of downstreamBrowsers) {
-      if (isMirrorEquivalent(compat.support, browser)) {
+      if (
+        isMirrorRequired(compat.support, browser) &&
+        isMirrorEquivalent(compat.support, browser)
+      ) {
         (compat.support[browser] as InternalSupportStatement) = 'mirror';
       }
     }
@@ -64,6 +98,10 @@ export const mirrorIfEquivalent = (bcd: CompatData): void => {
  * @param filename The name of the file to fix
  */
 const fixMirror = (filename: string): void => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   const actual = fs.readFileSync(filename, 'utf-8').trim();
   const bcd = JSON.parse(actual);
   mirrorIfEquivalent(bcd);
diff --git a/lint/fixer/property-order.ts b/lint/fixer/property-order.ts
index 54e7f6a17bff97..f15c2e41c88e3f 100644
--- a/lint/fixer/property-order.ts
+++ b/lint/fixer/property-order.ts
@@ -11,6 +11,10 @@ import stringifyAndOrderProperties from '../../scripts/lib/stringify-and-order-p
  * @param filename The name of the file to fix
  */
 const fixPropertyOrder = (filename: string): void => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   let actual = fs.readFileSync(filename, 'utf-8').trim();
   let expected = stringifyAndOrderProperties(actual);
 
diff --git a/lint/fixer/statement-order.ts b/lint/fixer/statement-order.ts
index 1b7266fe24a604..fec5aa0b8cb228 100644
--- a/lint/fixer/statement-order.ts
+++ b/lint/fixer/statement-order.ts
@@ -35,6 +35,10 @@ export const orderStatements = (
  * @param filename The name of the file to fix
  */
 const fixStatementOrder = (filename: string): void => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   let actual = fs.readFileSync(filename, 'utf-8').trim();
   let expected = JSON.stringify(JSON.parse(actual, orderStatements), null, 2);
 
diff --git a/lint/fixer/status.test.ts b/lint/fixer/status.test.ts
new file mode 100644
index 00000000000000..2e4917537ace45
--- /dev/null
+++ b/lint/fixer/status.test.ts
@@ -0,0 +1,151 @@
+/* This file is a part of @mdn/browser-compat-data
+ * See LICENSE file for more information. */
+
+import assert from 'node:assert/strict';
+
+import { CompatStatement, Identifier } from '../../types/types.js';
+
+import { fixStatusValue } from './status.js';
+
+type TestValue = Record<string, Identifier | CompatStatement>;
+
+const tests: { name: string; input: TestValue; output: TestValue }[] = [
+  {
+    name: 'should unset experimental when feature is deprecated',
+    input: {
+      __compat: {
+        support: {},
+        status: {
+          experimental: true,
+          standard_track: true,
+          deprecated: true,
+        },
+      },
+    },
+    output: {
+      __compat: {
+        support: {},
+        status: {
+          experimental: false,
+          standard_track: true,
+          deprecated: true,
+        },
+      },
+    },
+  },
+  {
+    name: 'should set standard_track when feature has spec_url',
+    input: {
+      __compat: {
+        spec_url: 'https://www.example.com/',
+        support: {},
+        status: {
+          experimental: true,
+          standard_track: false,
+          deprecated: false,
+        },
+      },
+    },
+    output: {
+      __compat: {
+        spec_url: 'https://www.example.com/',
+        support: {},
+        status: {
+          experimental: true,
+          standard_track: true,
+          deprecated: false,
+        },
+      },
+    },
+  },
+  {
+    name: 'should unset experimental when two engines implement the feature',
+    input: {
+      __compat: {
+        support: {
+          firefox: {
+            version_added: true,
+          },
+          safari: {
+            version_added: true,
+          },
+        },
+        status: {
+          experimental: true,
+          standard_track: false,
+          deprecated: false,
+        },
+      },
+    },
+    output: {
+      __compat: {
+        support: {
+          firefox: {
+            version_added: true,
+          },
+          safari: {
+            version_added: true,
+          },
+        },
+        status: {
+          experimental: false,
+          standard_track: false,
+          deprecated: false,
+        },
+      },
+    },
+  },
+  {
+    name: 'should set deprecated when parent feature is deprecated',
+    input: {
+      __compat: {
+        support: {},
+        status: {
+          experimental: false,
+          standard_track: true,
+          deprecated: true,
+        },
+      },
+      subfeature: {
+        __compat: {
+          support: {},
+          status: {
+            experimental: false,
+            standard_track: true,
+            deprecated: false,
+          },
+        },
+      } as Identifier,
+    },
+    output: {
+      __compat: {
+        support: {},
+        status: {
+          experimental: false,
+          standard_track: true,
+          deprecated: true,
+        },
+      },
+      subfeature: {
+        __compat: {
+          support: {},
+          status: {
+            experimental: false,
+            standard_track: true,
+            deprecated: true,
+          },
+        },
+      } as Identifier,
+    },
+  },
+];
+
+describe('fixStatus', () => {
+  for (const test of tests) {
+    it(test.name, () => {
+      const result = fixStatusValue(test.input as Identifier);
+
+      assert.deepStrictEqual(result, test.output);
+    });
+  }
+});
diff --git a/lint/fixer/status.ts b/lint/fixer/status.ts
index 0f4c3a9d0ec8e5..ebffc8bda0e083 100644
--- a/lint/fixer/status.ts
+++ b/lint/fixer/status.ts
@@ -6,14 +6,14 @@ import fs from 'node:fs';
 import { Identifier } from '../../types/types.js';
 import { checkExperimental } from '../linter/test-status.js';
 import { IS_WINDOWS } from '../utils.js';
+import walk from '../../utils/walk.js';
 
 /**
  * Fix the status values
- * @param key The key of the object
  * @param value The value to update
  * @returns The updated value
  */
-const fixStatus = (key: string, value: Identifier): Identifier => {
+export const fixStatusValue = (value: Identifier): Identifier => {
   const compat = value?.__compat;
   if (compat?.status) {
     if (compat.status.experimental && compat.status.deprecated) {
@@ -27,6 +27,33 @@ const fixStatus = (key: string, value: Identifier): Identifier => {
     if (!checkExperimental(compat)) {
       compat.status.experimental = false;
     }
+
+    if (compat.status.deprecated) {
+      // All sub-features are also deprecated.
+      for (const subfeature of walk(undefined, value)) {
+        if (subfeature.compat.status) {
+          subfeature.compat.status.deprecated = true;
+        }
+      }
+    }
+
+    if (compat.status.experimental) {
+      // All sub-features are also experimental, unless they are deprecated.
+      for (const subfeature of walk(undefined, value)) {
+        if (subfeature.compat.status && !subfeature.compat.status.deprecated) {
+          subfeature.compat.status.experimental = true;
+        }
+      }
+    }
+
+    if (compat.status.standard_track === false) {
+      // All sub-features are also experimental
+      for (const subfeature of walk(undefined, value)) {
+        if (subfeature.compat.status) {
+          subfeature.compat.status.standard_track = false;
+        }
+      }
+    }
   }
 
   return value;
@@ -37,8 +64,18 @@ const fixStatus = (key: string, value: Identifier): Identifier => {
  * @param filename The name of the file to fix
  */
 const fixStatusFromFile = (filename: string): void => {
+  if (filename.includes('/browsers/')) {
+    return;
+  }
+
   let actual = fs.readFileSync(filename, 'utf-8').trim();
-  let expected = JSON.stringify(JSON.parse(actual, fixStatus), null, 2);
+  let expected = JSON.stringify(
+    JSON.parse(actual, (_key: string, value: Identifier) =>
+      fixStatusValue(value),
+    ),
+    null,
+    2,
+  );
 
   if (IS_WINDOWS) {
     // prevent false positives from git.core.autocrlf on Windows
diff --git a/lint/lint.ts b/lint/lint.ts
index bb4194a0a0a3ae..33e423aab61406 100644
--- a/lint/lint.ts
+++ b/lint/lint.ts
@@ -78,7 +78,7 @@ const loadAndCheckFiles = async (...files: string[]): Promise<DataType> => {
         const rawFileData = (await fs.readFile(file, 'utf-8')).trim();
         const fileData = JSON.parse(rawFileData);
 
-        linters.runScope('file', {
+        await linters.runScope('file', {
           data: fileData,
           rawdata: rawFileData,
           path: filePath,
@@ -133,7 +133,7 @@ const main = async (
 
   console.log(chalk`{cyan Testing browser data...}`);
   for (const browser in data?.browsers) {
-    linters.runScope('browser', {
+    await linters.runScope('browser', {
       data: data.browsers[browser],
       rawdata: '',
       path: {
@@ -147,7 +147,7 @@ const main = async (
   console.log(chalk`{cyan Testing feature data...}`);
   const walker = walk(undefined, data);
   for (const feature of walker) {
-    linters.runScope('feature', {
+    await linters.runScope('feature', {
       data: feature.compat,
       rawdata: '',
       path: {
@@ -158,7 +158,7 @@ const main = async (
   }
 
   console.log(chalk`{cyan Testing all features together...}`);
-  linters.runScope('tree', {
+  await linters.runScope('tree', {
     data,
     rawdata: '',
     path: {
diff --git a/lint/linter/index.ts b/lint/linter/index.ts
index eaba34ee84e35a..b7e16f81b68616 100644
--- a/lint/linter/index.ts
+++ b/lint/linter/index.ts
@@ -17,6 +17,7 @@ export { default as testPrefix } from './test-prefix.js';
 export { default as testSchema } from './test-schema.js';
 export { default as testSpecURLs } from './test-spec-urls.js';
 export { default as testStatus } from './test-status.js';
+export { default as testStatusInheritance } from './test-status-inheritance.js';
 export { default as testStyle } from './test-style.js';
 export { default as testTags } from './test-tags.js';
 export { default as testVersions } from './test-versions.js';
diff --git a/lint/linter/test-descriptions.test.ts b/lint/linter/test-descriptions.test.ts
index 07e399a1877487..296e3c189f2202 100644
--- a/lint/linter/test-descriptions.test.ts
+++ b/lint/linter/test-descriptions.test.ts
@@ -82,7 +82,7 @@ describe('test-descriptions', () => {
     it('should check for redundant description', () => {
       const path = 'css.properties.width.auto';
       const data: CompatStatement = {
-        description: '<code>auto</code>',
+        description: '`auto`',
         support: {},
       };
 
diff --git a/lint/linter/test-descriptions.ts b/lint/linter/test-descriptions.ts
index a1ef16d6ebe20b..26da378b77c1ba 100644
--- a/lint/linter/test-descriptions.ts
+++ b/lint/linter/test-descriptions.ts
@@ -66,7 +66,7 @@ const processApiData = (
       'constructor',
       path,
       data,
-      `<code>${apiName}()</code> constructor`,
+      `\`${apiName}()\` constructor`,
       errors,
     );
   } else if (featureName.endsWith('_event')) {
@@ -74,7 +74,7 @@ const processApiData = (
       'event',
       path,
       data,
-      `<code>${featureName.replace('_event', '')}</code> event`,
+      `\`${featureName.replace('_event', '')}\` event`,
       errors,
     );
   } else if (featureName.endsWith('_permission')) {
@@ -82,7 +82,7 @@ const processApiData = (
       'permission',
       path,
       data,
-      `<code>${featureName.replace('_permission', '')}</code> permission`,
+      `\`${featureName.replace('_permission', '')}\` permission`,
       errors,
     );
   } else if (featureName == 'secure_context_required') {
@@ -116,7 +116,7 @@ export const processData = (
     processApiData(data, path, errors);
   }
 
-  if (data.description === `<code>${path.split('.').at(-1)}</code>`) {
+  if (data.description === `\`${path.split('.').at(-1)}\``) {
     errors.push({
       ruleName: 'redundant',
       path,
@@ -150,7 +150,7 @@ export default {
 
     for (const error of errors) {
       if (typeof error === 'string') {
-        logger.error(chalk`Description → ${error}`);
+        logger.error(chalk`{red ${error}}`);
       } else {
         logger.error(
           chalk`{red Incorrect ${error.ruleName} description for {bold ${error.path}}
diff --git a/lint/linter/test-links.test.ts b/lint/linter/test-links.test.ts
index 701277a4966173..9400debaa3ffa8 100644
--- a/lint/linter/test-links.test.ts
+++ b/lint/linter/test-links.test.ts
@@ -6,67 +6,67 @@ import assert from 'node:assert/strict';
 import { processData } from './test-links.js';
 
 describe('test-links', () => {
-  it('should process Bugzilla bug links correctly', () => {
+  it('should process Bugzilla bug links correctly', async () => {
     const rawData = 'https://bugzilla.mozilla.org/show_bug.cgi?id=12345';
-    const errors = processData(rawData);
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Use shortenable URL');
     assert.equal(errors[0].expected, 'https://bugzil.la/12345');
   });
 
-  it('should process new Chromium bug links correctly', () => {
+  it('should process new Chromium bug links correctly', async () => {
     const rawData = 'https://issues.chromium.org/issues/12345';
-    const errors = processData(rawData);
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Use shortenable URL');
     assert.equal(errors[0].expected, 'https://crbug.com/12345');
   });
 
-  it('should process old Chromium bug links correctly', () => {
+  it('should process old Chromium bug links correctly', async () => {
     const rawData =
       'https://bugs.chromium.org/p/chromium/issues/detail?id=12345';
-    const errors = processData(rawData);
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Use shortenable URL');
     assert.equal(errors[0].expected, 'https://crbug.com/12345');
   });
 
-  it('should process old Chromium bug links with categories correctly', () => {
+  it('should process old Chromium bug links with categories correctly', async () => {
     const rawData =
       'https://bugs.chromium.org/p/category/issues/detail?id=12345';
-    const errors = processData(rawData);
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Use shortenable URL');
     assert.equal(errors[0].expected, 'https://crbug.com/category/12345');
   });
 
-  it('should process Chromium revision links correctly', () => {
+  it('should process Chromium revision links correctly', async () => {
     const rawData = 'https://chromium.googlesource.com/chromium/src/+/12345';
-    const errors = processData(rawData);
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Use shortenable URL');
     assert.equal(errors[0].expected, 'https://crrev.com/12345');
   });
 
-  it('should process WebKit links correctly', () => {
+  it('should process WebKit links correctly', async () => {
     const rawData = 'https://bugs.webkit.org/show_bug.cgi?id=12345';
-    const errors = processData(rawData);
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Use shortenable URL');
     assert.equal(errors[0].expected, 'https://webkit.org/b/12345');
   });
 
-  it('should process multiple links correctly', () => {
+  it('should process multiple links correctly', async () => {
     const rawData =
       'https://bugs.chromium.org/p/chromium/issues/detail?id=12345\n' +
       'https://bugs.webkit.org/show_bug.cgi?id=12345';
-    const errors = processData(rawData);
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 2);
     assert.equal(errors[0].issue, 'Use shortenable URL');
@@ -75,50 +75,46 @@ describe('test-links', () => {
     assert.equal(errors[1].expected, 'https://webkit.org/b/12345');
   });
 
-  it('should process bug links correctly', () => {
-    const rawData = "<a href='http://bugzil.la/12345'>Bug 12345</a>";
-    const errors = processData(rawData);
+  it('should process bug links correctly', async () => {
+    const rawData = '[Bug 12345](http://bugzil.la/12345)';
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Use HTTPS for bug links');
     assert.equal(errors[0].expected, 'https://bugzil.la/12345');
   });
 
-  it('should process bug links with "bug" word outside correctly', () => {
-    const rawData = "bug <a href='https://bugzil.la/12345'>12345</a>";
-    const errors = processData(rawData);
+  it('should process bug links with "bug" word outside correctly', async () => {
+    const rawData = 'bug [12345](https://bugzil.la/12345)';
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Move word "bug" into link text');
-    assert.equal(
-      errors[0].expected,
-      "<a href='https://bugzil.la/12345'>bug 12345</a>",
-    );
+    assert.equal(errors[0].expected, '[bug 12345](https://bugzil.la/12345)');
   });
 
-  it('should process bug links with capital "Bug"', () => {
-    const rawData = "<a href='https://bugzil.la/12345'>Bug 12345</a>";
-    const errors = processData(rawData);
+  it('should process bug links with capital "Bug"', async () => {
+    const rawData = '[Bug 12345](https://bugzil.la/12345)';
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Use lowercase "bug" word within sentence');
     assert.equal(errors[0].expected, 'bug 12345');
   });
 
-  it('should process bug links with non-standard bug text', () => {
-    const rawData =
-      "see <a href='https://crbug.com/67890'>Chrome bug 67890</a>.";
-    const errors = processData(rawData);
+  it('should process bug links with non-standard bug text', async () => {
+    const rawData = 'see [Chrome bug 40067890](https://crbug.com/40067890).';
+    const errors = await processData(rawData);
 
     assert.equal(errors.length, 1);
     assert.equal(errors[0].issue, 'Use standard link text');
-    assert.equal(errors[0].expected, 'bug 67890');
+    assert.equal(errors[0].expected, 'bug 40067890');
   });
 
   describe('MDN links', () => {
-    it('should process MDN links on HTTP correctly', () => {
+    it('should process MDN links on HTTP correctly', async () => {
       const rawData = '"http://developer.mozilla.org/docs/Web/API/console"';
-      const errors = processData(rawData);
+      const errors = await processData(rawData);
 
       assert.equal(errors.length, 1);
       assert.equal(errors[0].issue, 'Use HTTPS MDN URL');
@@ -132,10 +128,10 @@ describe('test-links', () => {
       );
     });
 
-    it('should process MDN links on subdomain correctly', () => {
+    it('should process MDN links on subdomain correctly', async () => {
       const rawData =
         '"https://allizom.developer.mozilla.org/docs/Web/API/console"';
-      const errors = processData(rawData);
+      const errors = await processData(rawData);
 
       assert.equal(errors.length, 1);
       assert.equal(errors[0].issue, 'Use correct MDN domain');
@@ -145,10 +141,10 @@ describe('test-links', () => {
       );
     });
 
-    it('should process localized MDN links correctly', () => {
+    it('should process localized MDN links correctly', async () => {
       const rawData =
         '"https://developer.mozilla.org/en-US/docs/Web/API/console"';
-      const errors = processData(rawData);
+      const errors = await processData(rawData);
 
       assert.equal(errors.length, 1);
       assert.equal(errors[0].issue, 'Use non-localized MDN URL');
@@ -160,9 +156,9 @@ describe('test-links', () => {
   });
 
   describe('Microsoft Developer links', () => {
-    it('should process Microsoft Developer links correctly', () => {
+    it('should process Microsoft Developer links correctly', async () => {
       const rawData = '"https://developer.microsoft.com/en-us/microsoft-edge"';
-      const errors = processData(rawData);
+      const errors = await processData(rawData);
 
       assert.equal(errors.length, 1);
       assert.equal(
@@ -175,9 +171,9 @@ describe('test-links', () => {
       );
     });
 
-    it('should process localized Microsoft Developer links correctly', () => {
+    it('should process localized Microsoft Developer links correctly', async () => {
       const rawData = '"https://developer.microsoft.com/fr-fr/microsoft-edge"';
-      const errors = processData(rawData);
+      const errors = await processData(rawData);
 
       assert.equal(errors.length, 1);
       assert.equal(
diff --git a/lint/linter/test-links.ts b/lint/linter/test-links.ts
index f501f372ae209e..bd5a89490603af 100644
--- a/lint/linter/test-links.ts
+++ b/lint/linter/test-links.ts
@@ -27,22 +27,22 @@ interface LinkError {
  * @param regexp The regex to test with
  * @param matchHandler The callback
  */
-const processLink = (
+const processLink = async (
   errors: LinkError[],
   actual: string,
   regexp: string | RegExp,
-  matchHandler: (match: RegExpMatchArray) => {
+  matchHandler: (match: RegExpMatchArray) => Promise<{
     issue: string;
     expected?: string;
     actualLink?: string;
-  } | null,
-): void => {
+  } | null>,
+): Promise<void> => {
   const re = new RegExp(regexp, 'g');
   let match;
   while ((match = re.exec(actual)) !== null) {
     const pos = indexToPosRaw(actual, match.index);
     const posString = indexToPos(actual, match.index);
-    const result = matchHandler(match);
+    const result = await matchHandler(match);
 
     if (result) {
       const { issue, expected, actualLink = match[0] } = result;
@@ -57,12 +57,41 @@ const processLink = (
   }
 };
 
+const CRBUG_CACHE = new Map<string, string>();
+
+/**
+ * Resolves legacy Chrome bugs from the Monorail era.
+ * @param oldId the old bug id.
+ * @returns the new bug id.
+ */
+const resolveCrbug = async (oldId: string): Promise<string> => {
+  if (oldId.length >= 8) {
+    // This isn't an old id.
+    return oldId;
+  }
+
+  let newId = CRBUG_CACHE.get(oldId);
+  if (newId) {
+    return newId;
+  }
+
+  const res = await fetch(`https://crbug.com/${oldId}`);
+  const text = await res.text();
+  const match = text.match(/https:\/\/issues.chromium.org\/(\d{8,})/);
+
+  newId = match ? match[1] : oldId;
+
+  CRBUG_CACHE.set(oldId, newId);
+
+  return newId;
+};
+
 /**
  * Process the data for any errors within the links
  * @param rawData The raw contents of the file to test
  * @returns A list of errors found in the links
  */
-export const processData = (rawData: string): LinkError[] => {
+export const processData = async (rawData: string): Promise<LinkError[]> => {
   const errors: LinkError[] = [];
 
   let actual = rawData;
@@ -74,79 +103,90 @@ export const processData = (rawData: string): LinkError[] => {
   }
   /* c8 ignore stop */
 
-  processLink(
+  await processLink(
     // use https://bugzil.la/1000000 instead
     errors,
     actual,
     /https?:\/\/bugzilla\.mozilla\.org\/show_bug\.cgi\?id=(\d+)/g,
-    (match) => ({
+    async (match) => ({
       issue: 'Use shortenable URL',
       expected: `https://bugzil.la/${match[1]}`,
     }),
   );
 
-  processLink(
+  await processLink(
     // use https://crbug.com/100000 instead
     errors,
     actual,
     /https?:\/\/(issues\.chromium\.org)\/issues\/(\d+)/g,
-    (match) => ({
+    async (match) => ({
       issue: 'Use shortenable URL',
       expected: `https://crbug.com/${match[2]}`,
     }),
   );
 
-  processLink(
+  await processLink(
     // use https://crbug.com/100000 instead
     errors,
     actual,
     /https?:\/\/(bugs\.chromium\.org|code\.google\.com)\/p\/chromium\/issues\/detail\?id=(\d+)/g,
-    (match) => ({
+    async (match) => ({
       issue: 'Use shortenable URL',
       expected: `https://crbug.com/${match[2]}`,
     }),
   );
 
-  processLink(
+  await processLink(
     // use https://crbug.com/category/100000 instead
     errors,
     actual,
     /https?:\/\/(bugs\.chromium\.org|code\.google\.com)\/p\/((?!chromium)\w+)\/issues\/detail\?id=(\d+)/g,
-    (match) => ({
+    async (match) => ({
       issue: 'Use shortenable URL',
       expected: `https://crbug.com/${match[2]}/${match[3]}`,
     }),
   );
 
-  processLink(
+  await processLink(
     // use https://crbug.com/category/100000 instead
     errors,
     actual,
     /https?:\/\/chromium\.googlesource\.com\/chromium\/src\/\+\/([\w\d]+)/g,
-    (match) => ({
+    async (match) => ({
       issue: 'Use shortenable URL',
       expected: `https://crrev.com/${match[1]}`,
     }),
   );
 
-  processLink(
+  await processLink(
+    // use https://crbug.com/400000000 instead
+    errors,
+    actual,
+    /https?:\/\/crbug.com\/(\d{1,7})(?!\d)(?:#c(\d+))?/g,
+    async (match) => ({
+      issue: 'Use new Google Issue ID',
+      expected: `https://crbug.com/${await resolveCrbug(match[1])}${match[2] ? `#comment${Number(match[2]) + 1}` : ''}`,
+    }),
+  );
+
+  await processLink(
     // use https://webkit.org/b/100000 instead
     errors,
     actual,
     /https?:\/\/bugs\.webkit\.org\/show_bug\.cgi\?id=(\d+)/g,
-    (match) => ({
+    async (match) => ({
       issue: 'Use shortenable URL',
       expected: `https://webkit.org/b/${match[1]}`,
     }),
   );
 
-  processLink(
+  await processLink(
     // Bug links should use HTTPS and have "bug ###" as link text ("Bug ###" only at the beginning of notes/sentences).
     errors,
     actual,
-    /(\w*\s?)<a href='((https?):\/\/(bugzil\.la|crbug\.com|webkit\.org\/b)\/(\d+))'>(.*?)<\/a>/g,
-    (match) => {
-      const [, before, url, protocol, domain, bugId, linkText] = match;
+    /(\w*\s?)\[([^[\]]*)\]\(((https?):\/\/(bugzil\.la|crbug\.com|webkit\.org\/b)\/(\d+))\)/g,
+    async (match) => {
+      const [, before, linkText, url, protocol, domain, bugId] = match;
 
       if (protocol !== 'https') {
         return {
@@ -159,8 +199,8 @@ export const processData = (rawData: string): LinkError[] => {
       if (/^bug $/.test(before)) {
         return {
           issue: 'Move word "bug" into link text',
-          expected: `<a href='${url}'>${before}${bugId}</a>`,
-          actualLink: `${before}<a href='${url}'>${linkText}</a>`,
+          expected: `[${before}${bugId}](${url})`,
+          actualLink: `${before}[${linkText}](${url})`,
         };
       } else if (linkText === `Bug ${bugId}`) {
         if (!/(\. |")$/.test(before)) {
@@ -182,11 +222,11 @@ export const processData = (rawData: string): LinkError[] => {
     },
   );
 
-  processLink(
+  await processLink(
     errors,
     actual,
     /(https?):\/\/((?:[a-z][a-z0-9-]*\.)*)?developer.mozilla.org\/(.*?)(?=["'\s])/g,
-    (match) => {
+    async (match) => {
       const [, protocol, subdomain, path] = match;
 
       if (protocol !== 'https') {
@@ -222,26 +262,26 @@ export const processData = (rawData: string): LinkError[] => {
     },
   );
 
-  processLink(
+  await processLink(
     errors,
     actual,
     /https?:\/\/developer.microsoft.com\/(\w\w-\w\w)\/(.*?)(?=["'\s])/g,
-    (match) => ({
+    async (match) => ({
       issue: 'Use non-localized Microsoft Developer URL',
       expected: `https://developer.microsoft.com/${match[2]}`,
     }),
   );
 
-  processLink(
+  await processLink(
     errors,
     actual,
-    /<a href='([^'>]+)'>((?:.(?<!<\/a>))*.)<\/a>/g,
-    (match) => {
-      if (new URL(match[1]).hostname === null) {
+    /\[((?:.(?<!\]))*.)\]\(([^)]+)\)/g,
+    async (match) => {
+      if (new URL(match[2]).hostname === null) {
         return {
           issue: 'Include hostname in URL',
-          actualLink: match[1],
-          expected: `https://developer.mozilla.org/${match[1]}`,
+          actualLink: match[2],
+          expected: `https://developer.mozilla.org/${match[2]}`,
         };
       }
 
@@ -263,8 +303,8 @@ export default {
    * @param root The data to test
    * @param root.rawdata The raw contents of the file to test
    */
-  check: (logger: Logger, { rawdata }: LinterData) => {
-    const errors = processData(rawdata);
+  check: async (logger: Logger, { rawdata }: LinterData) => {
+    const errors = await processData(rawdata);
 
     for (const error of errors) {
       logger.error(
diff --git a/lint/linter/test-mdn-urls.ts b/lint/linter/test-mdn-urls.ts
index b8bf8c3192b5f9..209221ba53413f 100644
--- a/lint/linter/test-mdn-urls.ts
+++ b/lint/linter/test-mdn-urls.ts
@@ -25,18 +25,18 @@ const slugs = (() => {
 const redirects = mdnContentInventory.redirects;
 
 /**
- * Process the data for MDN URL errors
+ * Process the data for MDN URL issues
  * @param data The data to test
  * @param path The path of the feature
  * @param category The feature category
- * @returns The errors caught in the file
+ * @returns The issues caught in the file
  */
 export const processData = (
   data: CompatStatement,
   path: string,
   category: string,
 ): MDNURLError[] => {
-  const errors: MDNURLError[] = [];
+  const issues: MDNURLError[] = [];
   if (data.mdn_url) {
     const mdnURL = new URL(data.mdn_url);
     const redirectURL = '/en-US' + mdnURL.pathname;
@@ -44,7 +44,7 @@ export const processData = (
 
     /* Replace redirects with the new URL */
     if (redirectURL in redirects) {
-      errors.push({
+      issues.push({
         ruleName: 'mdn_url_redirect',
         path,
         actual: data.mdn_url,
@@ -57,7 +57,7 @@ export const processData = (
       !Array.from(slugs.values()).includes(slug) &&
       Array.from(slugs.keys()).includes(slug.toLowerCase())
     ) {
-      errors.push({
+      issues.push({
         ruleName: 'mdn_url_casing',
         path,
         actual: data.mdn_url,
@@ -66,7 +66,7 @@ export const processData = (
 
       /* Delete non-existing MDN pages */
     } else if (!Array.from(slugs.values()).includes(slug)) {
-      errors.push({
+      issues.push({
         ruleName: 'mdn_url_404',
         path,
         actual: data.mdn_url,
@@ -124,7 +124,7 @@ export const processData = (
     }
 
     if (slugs.has(categorySlug.toLowerCase())) {
-      errors.push({
+      issues.push({
         ruleName: 'mdn_url_new_page',
         path,
         actual: '',
@@ -132,7 +132,7 @@ export const processData = (
       });
     }
   }
-  return errors;
+  return issues;
 };
 
 export default {
@@ -149,25 +149,25 @@ export default {
    * @param root.path.category The category of the feature
    */
   check: (logger: Logger, { data, path: { full, category } }: LinterData) => {
-    const errors = processData(data, full, category);
-    for (const error of errors) {
-      if (error.expected === '') {
-        logger.error(
+    const issues = processData(data, full, category);
+    for (const issue of issues) {
+      if (issue.expected === '') {
+        logger.warning(
           chalk`{red Current mdn_url is a 404:
-          {bold ${error.actual}}}`,
+          {bold ${issue.actual}}}`,
           { fixable: true },
         );
-      } else if (error.actual === '') {
-        logger.error(
+      } else if (issue.actual === '') {
+        logger.warning(
           chalk`{red New mdn_url to add:
-          {bold ${error.expected}}}`,
+          {bold ${issue.expected}}}`,
           { fixable: true },
         );
       } else {
-        logger.error(
+        logger.warning(
           chalk`{red Issues with mdn_url found:
-            Actual:   ${error.actual}
-            Expected: ${error.expected}}`,
+            Actual:   ${issue.actual}
+            Expected: ${issue.expected}}`,
           { fixable: true },
         );
       }
diff --git a/lint/linter/test-mirror.ts b/lint/linter/test-mirror.ts
index 184662380770f2..e82fd166347945 100644
--- a/lint/linter/test-mirror.ts
+++ b/lint/linter/test-mirror.ts
@@ -8,7 +8,7 @@ import { BrowserName } from '../../types/types.js';
 import { InternalSupportBlock } from '../../types/index';
 import bcd from '../../index.js';
 const { browsers } = bcd;
-import { isMirrorEquivalent } from '../fixer/mirror.js';
+import { isMirrorEquivalent, isMirrorRequired } from '../fixer/mirror.js';
 
 /**
  * Check the data to ensure all statements that should use `mirror` do
@@ -28,7 +28,10 @@ const checkMirroring = (
     .filter((b) => browsers[b].upstream) as BrowserName[];
 
   for (const browser of browsersToCheck) {
-    if (isMirrorEquivalent(supportData, browser)) {
+    if (
+      isMirrorRequired(supportData, browser) &&
+      isMirrorEquivalent(supportData, browser)
+    ) {
       logger.error(
         chalk`Data for {bold ${browser}} can be automatically mirrored, use {bold "${browser}": "mirror"} instead`,
         { fixable: true },
diff --git a/lint/linter/test-notes.ts b/lint/linter/test-notes.ts
index ecfc4296d22eef..556ba8a9f79528 100644
--- a/lint/linter/test-notes.ts
+++ b/lint/linter/test-notes.ts
@@ -3,6 +3,7 @@
 
 import chalk from 'chalk-template';
 import HTMLParser from '@desertnet/html-parser';
+import { marked } from 'marked';
 
 import { Linter, Logger, LinterData, VALID_ELEMENTS } from '../utils.js';
 import {
@@ -68,11 +69,12 @@ const testNode = (node): string[] => {
  */
 export const validateHTML = (string: string): string[] => {
   const errors: string[] = [];
-  const htmlErrors = HTMLParser.validate(string);
+  const html = marked.parseInline(string);
+  const htmlErrors = HTMLParser.validate(html);
 
   if (htmlErrors.length === 0) {
     // If HTML is valid, ensure we're only using valid elements
-    errors.push(...testNode(parser.parse(string)));
+    errors.push(...testNode(parser.parse(html)));
   } else {
     errors.push(
       chalk`Invalid HTML: ${htmlErrors.map((x) => x._message).join(', ')}`,
diff --git a/lint/linter/test-spec-urls.ts b/lint/linter/test-spec-urls.ts
index babdbf49615ae5..e58bed38dc1c2a 100644
--- a/lint/linter/test-spec-urls.ts
+++ b/lint/linter/test-spec-urls.ts
@@ -38,6 +38,9 @@ const specsExceptions = [
   'https://github.com/WebAssembly/threads/blob/main/proposal',
   'https://github.com/WebAssembly/relaxed-simd/blob/main/proposals',
   'https://github.com/WebAssembly/multi-memory/blob/main/proposals',
+  'https://github.com/WebAssembly/memory64/blob/main/proposals/memory64/Overview.md',
+  'https://github.com/WebAssembly/js-string-builtins/blob/main/proposals/js-string-builtins/Overview.md',
+  'https://github.com/WebAssembly/function-references/blob/main/proposals/function-references/Overview.md',
 ];
 
 interface ValidSpecHosts {
diff --git a/lint/linter/test-status-inheritance.ts b/lint/linter/test-status-inheritance.ts
new file mode 100644
index 00000000000000..cf7d7079588f28
--- /dev/null
+++ b/lint/linter/test-status-inheritance.ts
@@ -0,0 +1,69 @@
+/* This file is a part of @mdn/browser-compat-data
+ * See LICENSE file for more information. */
+
+import chalk from 'chalk-template';
+
+import { Linter, Logger, LinterData } from '../utils.js';
+import { CompatData } from '../../types/types.js';
+import walk from '../../utils/walk.js';
+
+/**
+ * Checks for correct inheritance of statuses.
+ * @param data The data to test
+ * @param logger The logger to output errors to
+ */
+const checkStatusInheritance = (data: CompatData, logger: Logger) => {
+  for (const feature of walk(undefined, data)) {
+    // If a feature is deprecated, all sub-features are also deprecated.
+    if (feature.compat.status?.deprecated === true) {
+      for (const subfeature of walk(undefined, feature.data)) {
+        if (subfeature.compat.status?.deprecated === false) {
+          logger.error(
+            chalk`{red Feature {italic ${feature.path}} is {bold deprecated}, but subfeature {italic ${subfeature.path}} is {bold not deprecated}.}`,
+            { fixable: true },
+          );
+        }
+      }
+    }
+    // If a feature is experimental, all sub-features are also experimental, unless they are deprecated.
+    if (feature.compat.status?.experimental === true) {
+      for (const subfeature of walk(undefined, feature.data)) {
+        if (
+          subfeature.compat.status?.experimental === false &&
+          subfeature.compat.status?.deprecated === false
+        ) {
+          logger.error(
+            chalk`{red Feature {italic ${feature.path}} is {bold experimental}, but subfeature {italic ${subfeature.path}} is {bold not experimental}.}`,
+            { fixable: true },
+          );
+        }
+      }
+    }
+    // If a feature is not standardized, then all sub-features aren't either.
+    if (feature.compat.status?.standard_track === false) {
+      for (const subfeature of walk(undefined, feature.data)) {
+        if (subfeature.compat.status?.standard_track === true) {
+          logger.error(
+            chalk`{red Feature {italic ${feature.path}} is {bold not standardized}, but subfeature {italic ${subfeature.path}} is {bold standardized}.}`,
+            { fixable: true },
+          );
+        }
+      }
+    }
+  }
+};
+
+export default {
+  name: 'Status inheritance',
+  description: 'Test for status inheritance',
+  scope: 'tree',
+  /**
+   * Test the data
+   * @param logger The logger to output errors to
+   * @param root The data to test
+   * @param root.data The data to test
+   */
+  check: (logger: Logger, { data }: LinterData) => {
+    checkStatusInheritance(data, logger);
+  },
+} as Linter;
diff --git a/lint/linter/test-style.ts b/lint/linter/test-style.ts
index 98e8fbde250f7b..437d82f39be8ea 100644
--- a/lint/linter/test-style.ts
+++ b/lint/linter/test-style.ts
@@ -3,14 +3,7 @@
 
 import chalk from 'chalk-template';
 
-import {
-  Linter,
-  Logger,
-  LinterData,
-  IS_WINDOWS,
-  indexToPos,
-  jsonDiff,
-} from '../utils.js';
+import { Linter, Logger, LinterData, IS_WINDOWS, jsonDiff } from '../utils.js';
 import { orderSupportBlock } from '../fixer//browser-order.js';
 import { orderFeatures } from '../fixer//feature-order.js';
 import { orderStatements } from '../fixer//statement-order.js';
@@ -98,16 +91,6 @@ const processData = (
       { fixable: true },
     );
   }
-
-  const hrefDoubleQuoteIndex = actual.indexOf('href=\\"');
-  if (hrefDoubleQuoteIndex >= 0) {
-    logger.error(
-      chalk`${indexToPos(
-        actual,
-        hrefDoubleQuoteIndex,
-      )} - Found {yellow \\"}, but expected {green \'} for <a href>.`,
-    );
-  }
 };
 
 export default {
diff --git a/lint/utils.ts b/lint/utils.ts
index 15496414a6e8f8..afea14798ed781 100644
--- a/lint/utils.ts
+++ b/lint/utils.ts
@@ -8,6 +8,10 @@ import chalk from 'chalk-template';
 import { DataType } from '../types/index.js';
 import { BrowserName } from '../types/types.js';
 
+export interface LintOptions {
+  only?: string[];
+}
+
 const now = new Date();
 
 /* The date, exactly two years ago */
@@ -137,7 +141,7 @@ export interface Linter {
   name: string;
   description: string;
   scope: LinterScope;
-  check: (logger: Logger, options: object) => void;
+  check: (logger: Logger, options: object) => void | Promise<void>;
   exceptions?: string[];
 }
 
@@ -249,13 +253,13 @@ export class Linters {
    * @param scope The scope to run
    * @param data The data to lint
    */
-  runScope(scope: LinterScope, data: LinterData): void {
+  async runScope(scope: LinterScope, data: LinterData): Promise<void> {
     const linters = this.linters.filter((linter) => linter.scope === scope);
     for (const linter of linters) {
       const logger = new Logger(linter.name, data.path.full);
       try {
         const shouldFail = linter.exceptions?.includes(data.path.full);
-        linter.check(logger, data);
+        await linter.check(logger, data);
         if (shouldFail) {
           this.missingExpectedFailures[linter.name][data.path.full] =
             logger.messages.length === 0;
diff --git a/mathml/attribute_values.json b/mathml/attribute_values.json
index 9bb573dd43ce1a..34d46838501a64 100644
--- a/mathml/attribute_values.json
+++ b/mathml/attribute_values.json
@@ -3,8 +3,11 @@
     "attribute_values": {
       "named_space": {
         "__compat": {
-          "description": "Named spaces (e.g. <code>thinmathspace</code> to mean 3/18em)",
+          "description": "Named spaces (e.g. `thinmathspace` to mean 3/18em)",
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Values",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,6 +42,9 @@
       "nonzero_unitless_values": {
         "__compat": {
           "description": "Nonzero unitless values (e.g. 5 to mean 500% the default thickness)",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -60,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/annotation-xml.json b/mathml/elements/annotation-xml.json
index 2add4f2f7374a2..a87671ce58622e 100644
--- a/mathml/elements/annotation-xml.json
+++ b/mathml/elements/annotation-xml.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/semantics",
           "spec_url": "https://w3c.github.io/mathml-core/#semantics-and-presentation",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/annotation.json b/mathml/elements/annotation.json
index 78d6e0fbfcafa6..57c6dd71647e18 100644
--- a/mathml/elements/annotation.json
+++ b/mathml/elements/annotation.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/semantics",
           "spec_url": "https://w3c.github.io/mathml-core/#semantics-and-presentation",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/maction.json b/mathml/elements/maction.json
index beade9aa28c889..f053ba8c118296 100644
--- a/mathml/elements/maction.json
+++ b/mathml/elements/maction.json
@@ -8,13 +8,13 @@
           "support": {
             "chrome": {
               "version_added": "109",
-              "notes": "This follows MathML Core: Only the first child is rendered while the others have their <code>display</code> set to <code>none</code>. <code>actiontype</code> and <code>selection</code> attributes are ignored."
+              "notes": "This follows MathML Core: Only the first child is rendered while the others have their `display` set to `none`. `actiontype` and `selection` attributes are ignored."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
               "version_added": "1",
-              "notes": "Firefox 106 and later versions follow MathML Core: Only the first child is rendered while the others have their <code>display</code> set to <code>none</code>. <code>actiontype</code> and <code>selection</code> attributes are ignored."
+              "notes": "Firefox 106 and later versions follow MathML Core: Only the first child is rendered while the others have their `display` set to `none`. `actiontype` and `selection` attributes are ignored."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -60,7 +61,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -68,49 +70,9 @@
               "deprecated": true
             }
           },
-          "statusline": {
-            "__compat": {
-              "support": {
-                "chrome": {
-                  "version_added": false
-                },
-                "chrome_android": "mirror",
-                "edge": "mirror",
-                "firefox": [
-                  {
-                    "version_added": "9",
-                    "version_removed": "106"
-                  },
-                  {
-                    "version_added": "1",
-                    "version_removed": "106",
-                    "partial_implementation": true,
-                    "notes": "The first implementation used a syntax different from the one of the MathML 3 specification."
-                  }
-                ],
-                "firefox_android": "mirror",
-                "ie": {
-                  "version_added": false
-                },
-                "oculus": "mirror",
-                "opera": "mirror",
-                "opera_android": "mirror",
-                "safari": {
-                  "version_added": false
-                },
-                "safari_ios": "mirror",
-                "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
-              },
-              "status": {
-                "experimental": false,
-                "standard_track": false,
-                "deprecated": true
-              }
-            }
-          },
           "toggle": {
             "__compat": {
+              "description": "`actiontype=\"toggle\"`",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -133,7 +95,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -155,8 +118,8 @@
                 "version_added": "1",
                 "version_removed": "106",
                 "notes": [
-                  "In Firefox 15, the <code>selection</code> attribute is now ignored for actiontype other than <code>toggle</code>.",
-                  "In Firefox 16, the <code>selection</code> attribute is taken into account again when an unknown <code>actiontype</code> is specified."
+                  "In Firefox 15, the `selection` attribute is now ignored for actiontype other than `toggle`.",
+                  "In Firefox 16, the `selection` attribute is taken into account again when an unknown `actiontype` is specified."
                 ]
               },
               "firefox_android": "mirror",
@@ -171,7 +134,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/math.json b/mathml/elements/math.json
index 5842fcdd393da9..b680139daa8d60 100644
--- a/mathml/elements/math.json
+++ b/mathml/elements/math.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/math",
           "spec_url": "https://w3c.github.io/mathml-core/#the-top-level-math-element",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": [
               {
@@ -13,9 +16,9 @@
               {
                 "version_added": "24",
                 "version_removed": "25",
-                "impl_url": "https://crbug.com/152430",
+                "impl_url": "https://crbug.com/40289400",
                 "partial_implementation": true,
-                "notes": "Removed in Chrome 25 because <a href='https://crbug.com/152430#c32'>code was not yet production ready</a>."
+                "notes": "Removed in Chrome 25 because [code was not yet production ready](https://crbug.com/40289400#comment33)."
               }
             ],
             "chrome_android": "mirror",
@@ -64,7 +67,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -76,6 +80,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/math#attr-display",
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-display",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -97,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/menclose.json b/mathml/elements/menclose.json
index effe7b324a8576..65f8c73bc74400 100644
--- a/mathml/elements/menclose.json
+++ b/mathml/elements/menclose.json
@@ -4,6 +4,9 @@
       "menclose": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/menclose",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -25,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -35,6 +39,9 @@
         },
         "notation": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -56,7 +63,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -66,6 +74,10 @@
           },
           "actuarial": {
             "__compat": {
+              "description": "`notation=\"actuarial\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -87,7 +99,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -98,6 +111,10 @@
           },
           "bottom": {
             "__compat": {
+              "description": "`notation=\"bottom\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -119,7 +136,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -130,6 +148,10 @@
           },
           "box": {
             "__compat": {
+              "description": "`notation=\"box\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -151,7 +173,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -162,6 +185,10 @@
           },
           "circle": {
             "__compat": {
+              "description": "`notation=\"circle\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -183,7 +210,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -194,6 +222,10 @@
           },
           "downdiagonalstrike": {
             "__compat": {
+              "description": "`notation=\"downdiagonalstrike\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -215,7 +247,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -226,6 +259,10 @@
           },
           "horizontalstrike": {
             "__compat": {
+              "description": "`notation=\"horizontalstrike\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -247,7 +284,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -258,6 +296,10 @@
           },
           "left": {
             "__compat": {
+              "description": "`notation=\"left\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -279,7 +321,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -290,6 +333,10 @@
           },
           "longdiv": {
             "__compat": {
+              "description": "`notation=\"longdiv\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -311,7 +358,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -322,6 +370,10 @@
           },
           "madruwb": {
             "__compat": {
+              "description": "`notation=\"madruwb\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -343,7 +395,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -354,6 +407,10 @@
           },
           "phasorangle": {
             "__compat": {
+              "description": "`notation=\"phasorangle\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -375,7 +432,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -386,6 +444,10 @@
           },
           "right": {
             "__compat": {
+              "description": "`notation=\"right\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -407,7 +469,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -418,6 +481,10 @@
           },
           "roundedbox": {
             "__compat": {
+              "description": "`notation=\"roundedbox\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -439,7 +506,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -450,6 +518,10 @@
           },
           "top": {
             "__compat": {
+              "description": "`notation=\"top\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -471,7 +543,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -482,6 +555,10 @@
           },
           "updiagonalarrow": {
             "__compat": {
+              "description": "`notation=\"updiagonalarrow\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -503,7 +580,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -514,6 +592,10 @@
           },
           "updiagonalstrike": {
             "__compat": {
+              "description": "`notation=\"updiagonalstrike\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -535,7 +617,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -546,6 +629,10 @@
           },
           "verticalstrike": {
             "__compat": {
+              "description": "`notation=\"verticalstrike\"`",
+              "tags": [
+                "web-features:mathml"
+              ],
               "support": {
                 "chrome": {
                   "version_added": false
@@ -567,7 +654,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/mathml/elements/merror.json b/mathml/elements/merror.json
index 11f124b27cad4b..37596b92c946c3 100644
--- a/mathml/elements/merror.json
+++ b/mathml/elements/merror.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/merror",
           "spec_url": "https://w3c.github.io/mathml-core/#error-message-merror",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/mfenced.json b/mathml/elements/mfenced.json
index e73077df77e235..acddf804a2d63e 100644
--- a/mathml/elements/mfenced.json
+++ b/mathml/elements/mfenced.json
@@ -26,7 +26,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/mfrac.json b/mathml/elements/mfrac.json
index 4cb83f4d7f4b55..7bb1eada931a2b 100644
--- a/mathml/elements/mfrac.json
+++ b/mathml/elements/mfrac.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mfrac",
           "spec_url": "https://w3c.github.io/mathml-core/#fractions-mfrac",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -58,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +75,9 @@
         "linethickness": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-linethickness",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -93,12 +101,13 @@
                 {
                   "version_added": "5.1",
                   "partial_implementation": true,
-                  "notes": "Only <code>0</code>, <code>thin</code>, <code>medium</code>, and <code>thick</code> are supported."
+                  "notes": "Only `0`, `thin`, `medium`, and `thick` are supported."
                 }
               ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -108,7 +117,7 @@
           },
           "named_spaces": {
             "__compat": {
-              "description": "Named spaces (e.g. <code>thinmathspace</code> to mean 3/18em)",
+              "description": "Named spaces (e.g. `thinmathspace` to mean 3/18em)",
               "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Values",
               "support": {
                 "chrome": {
@@ -131,7 +140,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -166,7 +176,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -177,7 +188,7 @@
           },
           "thin_medium_thick": {
             "__compat": {
-              "description": "<code>thin</code>, <code>medium</code>, <code>thick</code> values",
+              "description": "`thin`, `medium`, `thick` values",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -200,7 +211,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -234,7 +246,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/mi.json b/mathml/elements/mi.json
index f724d6d5f2f7e3..c63d9360877949 100644
--- a/mathml/elements/mi.json
+++ b/mathml/elements/mi.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mi",
           "spec_url": "https://w3c.github.io/mathml-core/#dfn-mi",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "mathvariant": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-mathvariant",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -47,8 +54,8 @@
                 "version_added": "70",
                 "impl_url": "https://hg.mozilla.org/mozilla-central/rev/3b30c8db537c",
                 "notes": [
-                  "The only allowed value in MathML Core is 'normal'. Firefox enables a number of other deprecated values from the MathML 3 specification (see <a href='https://bugzil.la/1845461'>bug 1845461</a>).",
-                  "Implementation does not rely on the CSS approach described in MathML Core (via <code>text-transform</code>."
+                  "The only allowed value in MathML Core is 'normal'. Firefox enables a number of other deprecated values from the MathML 3 specification (see [bug 1845461](https://bugzil.la/1845461)).",
+                  "Implementation does not rely on the CSS approach described in MathML Core (via `text-transform`."
                 ]
               },
               "firefox_android": "mirror",
@@ -56,21 +63,20 @@
                 "version_added": false
               },
               "oculus": "mirror",
-              "opera": {
-                "version_added": false
-              },
+              "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
                 "version_added": "10",
                 "impl_url": "https://trac.webkit.org/changeset/203679",
                 "notes": [
                   "The only allowed value in MathML Core is 'normal'. Safari enables a number of other deprecated values from the MathML 3 specification.",
-                  "Implementation does not rely on the CSS approach described in MathML Core (via <code>text-transform</code>."
+                  "Implementation does not rely on the CSS approach described in MathML Core (via `text-transform`."
                 ]
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/mmultiscripts.json b/mathml/elements/mmultiscripts.json
index 653e3729be99a8..074cae288d74f5 100644
--- a/mathml/elements/mmultiscripts.json
+++ b/mathml/elements/mmultiscripts.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mmultiscripts",
           "spec_url": "https://w3c.github.io/mathml-core/#prescripts-and-tensor-indices-mmultiscripts",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -58,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -91,7 +96,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/mn.json b/mathml/elements/mn.json
index 7312af6732b674..b42f6a925e577f 100644
--- a/mathml/elements/mn.json
+++ b/mathml/elements/mn.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mn",
           "spec_url": "https://w3c.github.io/mathml-core/#number-mn",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/mo.json b/mathml/elements/mo.json
index cb24ae610d7803..32942cf911e486 100644
--- a/mathml/elements/mo.json
+++ b/mathml/elements/mo.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mo",
           "spec_url": "https://w3c.github.io/mathml-core/#operator-fence-separator-or-accent-mo",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,6 +40,9 @@
         },
         "accent": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -57,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -69,6 +77,9 @@
         "form": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-form",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -90,7 +101,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -102,6 +114,9 @@
         "largeop": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-largeop-0",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -123,7 +138,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,6 +151,9 @@
         "lspace": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-lspace-0",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -156,7 +175,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -168,6 +188,9 @@
         "maxsize": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-maxsize-0",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -189,7 +212,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -201,6 +225,9 @@
         "minsize": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-minsize-0",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -222,7 +249,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -231,9 +259,12 @@
             }
           }
         },
-        "moveablelimits": {
+        "movablelimits": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-movablelimits-0",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -255,7 +286,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -266,7 +298,7 @@
         },
         "named_spaces": {
           "__compat": {
-            "description": "Named spaces (e.g. <code>thinmathspace</code> to mean 3/18em) for <code>lspace</code>, <code>maxsize</code>, <code>minsize</code> and <code>rspace</code> attributes",
+            "description": "Named spaces (e.g. `thinmathspace` to mean 3/18em) for `lspace`, `maxsize`, `minsize` and `rspace` attributes",
             "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Values",
             "support": {
               "chrome": {
@@ -289,7 +321,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -300,7 +333,7 @@
         },
         "nonzero_unitless_values": {
           "__compat": {
-            "description": "Nonzero unitless values (e.g. 5 to mean 500%) for <code>lspace</code>, <code>maxsize</code>, <code>minsize</code> and <code>rspace</code> attributes",
+            "description": "Nonzero unitless values (e.g. 5 to mean 500%) for `lspace`, `maxsize`, `minsize` and `rspace` attributes",
             "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Values",
             "support": {
               "chrome": {
@@ -324,7 +357,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -336,6 +370,9 @@
         "rspace": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-rspace-0",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -357,7 +394,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -369,6 +407,9 @@
         "stretchy": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-stretchy-0",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -390,7 +431,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -402,6 +444,9 @@
         "symmetric": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-symmetric-0",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -423,7 +468,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/mover.json b/mathml/elements/mover.json
index 0920fd24e4a7fe..a75aa23705e5e2 100644
--- a/mathml/elements/mover.json
+++ b/mathml/elements/mover.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mover",
           "spec_url": "https://w3c.github.io/mathml-core/#underscripts-and-overscripts-munder-mover-munderover",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "accent": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-accent",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/mpadded.json b/mathml/elements/mpadded.json
index a1ac02675db5c9..13d74a319f2fcd 100644
--- a/mathml/elements/mpadded.json
+++ b/mathml/elements/mpadded.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mpadded",
           "spec_url": "https://w3c.github.io/mathml-core/#adjust-space-around-content-mpadded",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "depth": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#attribute-mpadded-depth",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "height": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#attribute-mpadded-height",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -103,6 +115,9 @@
         "lspace": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#attribute-mpadded-lspace",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -124,7 +139,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,7 +151,7 @@
         },
         "named_spaces": {
           "__compat": {
-            "description": "Named spaces (e.g. <code>thinmathspace</code> to mean 3/18em)",
+            "description": "Named spaces (e.g. `thinmathspace` to mean 3/18em)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Values",
             "support": {
               "chrome": {
@@ -158,7 +174,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -193,7 +210,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -204,7 +222,7 @@
         },
         "pseudo_units": {
           "__compat": {
-            "description": "Pseudo units (e.g. <code>width</code> to mean content width)",
+            "description": "Pseudo units (e.g. `width` to mean content width)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Values",
             "support": {
               "chrome": {
@@ -227,7 +245,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -238,7 +257,10 @@
         },
         "relative_values": {
           "__compat": {
-            "description": "Relative values (e.g. <code>\"+10px\"</code>)",
+            "description": "Relative values (e.g. `\"+10px\"`)",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -260,7 +282,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -271,7 +294,7 @@
         },
         "scale_factor": {
           "__compat": {
-            "description": "<a href='https://developer.mozilla.org/docs/Web/MathML/Attribute/Values#mathml-specific_types'>&lt;unsigned-number&gt;</a> as a scale factor or percent",
+            "description": "[&lt;unsigned-number&gt;](https://developer.mozilla.org/docs/Web/MathML/Attribute/Values#mathml-specific_types) as a scale factor or percent",
             "support": {
               "chrome": {
                 "version_added": false
@@ -293,7 +316,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -305,6 +329,9 @@
         "voffset": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#attribute-mpadded-voffset",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -326,7 +353,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -338,6 +366,9 @@
         "width": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#attribute-mpadded-width",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -359,7 +390,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/mphantom.json b/mathml/elements/mphantom.json
index 4fde8d081b8e54..153ae2bd28beee 100644
--- a/mathml/elements/mphantom.json
+++ b/mathml/elements/mphantom.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mphantom",
           "spec_url": "https://w3c.github.io/mathml-core/#making-sub-expressions-invisible-mphantom",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/mprescripts.json b/mathml/elements/mprescripts.json
index 091bb8f03cba4d..6296b8d1738d5c 100644
--- a/mathml/elements/mprescripts.json
+++ b/mathml/elements/mprescripts.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mmultiscripts",
           "spec_url": "https://w3c.github.io/mathml-core/#prescripts-and-tensor-indices-mmultiscripts",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/mroot.json b/mathml/elements/mroot.json
index c155e5f69060d5..da083917772518 100644
--- a/mathml/elements/mroot.json
+++ b/mathml/elements/mroot.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mroot",
           "spec_url": "https://w3c.github.io/mathml-core/#radicals-msqrt-mroot",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/mrow.json b/mathml/elements/mrow.json
index aa98aa4fee47a0..aaa044e34d19e7 100644
--- a/mathml/elements/mrow.json
+++ b/mathml/elements/mrow.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mrow",
           "spec_url": "https://w3c.github.io/mathml-core/#horizontally-group-sub-expressions-mrow",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/ms.json b/mathml/elements/ms.json
index ced5205243c062..be65e0c7e9f881 100644
--- a/mathml/elements/ms.json
+++ b/mathml/elements/ms.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/ms",
           "spec_url": "https://w3c.github.io/mathml-core/#string-literal-ms",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,47 +29,14 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
-        },
-        "lquote_rquote_attributes": {
-          "__compat": {
-            "description": "Surround the content of the <code>&lt;ms&gt;</code> element with quotes, specifiable via the <code>lquote</code> and <code>rquote</code> attributes.",
-            "support": {
-              "chrome": {
-                "version_added": false
-              },
-              "chrome_android": "mirror",
-              "edge": "mirror",
-              "firefox": {
-                "version_added": "1",
-                "version_removed": "107"
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": false
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": false
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": false,
-              "deprecated": true
-            }
-          }
         }
       }
     }
diff --git a/mathml/elements/mspace.json b/mathml/elements/mspace.json
index fc85502744f1b2..a221446a735114 100644
--- a/mathml/elements/mspace.json
+++ b/mathml/elements/mspace.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mspace",
           "spec_url": "https://w3c.github.io/mathml-core/#space-mspace",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "depth": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#attribute-mspace-depth",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "height": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#attribute-mspace-height",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -102,7 +114,7 @@
         },
         "named_spaces": {
           "__compat": {
-            "description": "Named spaces (e.g. <code>thinmathspace</code> to mean 3/18em) for <code>width</code>, <code>height</code> and <code>depth</code> attributes",
+            "description": "Named spaces (e.g. `thinmathspace` to mean 3/18em) for `width`, `height` and `depth` attributes",
             "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Values",
             "support": {
               "chrome": {
@@ -125,7 +137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -137,6 +150,9 @@
         "width": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#attribute-mspace-width",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -159,7 +175,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/msqrt.json b/mathml/elements/msqrt.json
index edbf54cc0b9987..dee2073a564908 100644
--- a/mathml/elements/msqrt.json
+++ b/mathml/elements/msqrt.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/msqrt",
           "spec_url": "https://w3c.github.io/mathml-core/#radicals-msqrt-mroot",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/mstyle.json b/mathml/elements/mstyle.json
index b8ac32ea8ba8bd..402a807568a6d5 100644
--- a/mathml/elements/mstyle.json
+++ b/mathml/elements/mstyle.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mstyle",
           "spec_url": "https://w3c.github.io/mathml-core/#style-change-mstyle",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -15,14 +18,14 @@
               {
                 "version_added": "6",
                 "notes": [
-                  "In Firefox 29, accepted attributes have been restricted to those actually used in practice: <code>id</code>, <code>class</code>, <code>style</code>, <code>href</code>, <code>mathcolor</code>, <code>mathbackground</code>, <code>scriptlevel</code>, <code>displaystyle</code>, <code>scriptsizemultiplier</code>, <code>scriptminsize</code>, <code>dir</code>, <code>mathsize</code>, <code>mathvariant</code>, <code>fontfamily</code>, <code>fontweight</code>, <code>fontstyle</code>, <code>fontsize</code>, <code>color</code>, <code>background</code>.",
-                  "In Firefox 103, attributes <code>scriptsizemultiplier</code> and <code>scriptminsize</code> have been removed."
+                  "In Firefox 29, accepted attributes have been restricted to those actually used in practice: `id`, `class`, `style`, `href`, `mathcolor`, `mathbackground`, `scriptlevel`, `displaystyle`, `scriptsizemultiplier`, `scriptminsize`, `dir`, `mathsize`, `mathvariant`, `fontfamily`, `fontweight`, `fontstyle`, `fontsize`, `color`, `background`.",
+                  "In Firefox 103, attributes `scriptsizemultiplier` and `scriptminsize` have been removed."
                 ]
               },
               {
                 "version_added": "1",
                 "partial_implementation": true,
-                "notes": "Attributes <code>bevelled</code>, <code>notation</code>, <code>open</code>, <code>close</code>, <code>separators</code>, <code>accent</code>, <code>accentunder</code>, <code>selection</code>, <code>mathvariant</code> are not supported."
+                "notes": "Attributes `bevelled`, `notation`, `open`, `close`, `separators`, `accent`, `accentunder`, `selection`, `mathvariant` are not supported."
               }
             ],
             "firefox_android": "mirror",
@@ -37,7 +40,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -70,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -104,7 +109,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -138,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -172,7 +179,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -206,7 +214,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/msub.json b/mathml/elements/msub.json
index 02e5f726272849..3b6db254a1f59f 100644
--- a/mathml/elements/msub.json
+++ b/mathml/elements/msub.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/msub",
           "spec_url": "https://w3c.github.io/mathml-core/#subscripts-and-superscripts-msub-msup-msubsup",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -58,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/msubsup.json b/mathml/elements/msubsup.json
index 6eef8bc62c1905..c491a581440b40 100644
--- a/mathml/elements/msubsup.json
+++ b/mathml/elements/msubsup.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/msubsup",
           "spec_url": "https://w3c.github.io/mathml-core/#subscripts-and-superscripts-msub-msup-msubsup",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -58,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -91,7 +96,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/msup.json b/mathml/elements/msup.json
index 2326a966547499..d5ea1b04f11344 100644
--- a/mathml/elements/msup.json
+++ b/mathml/elements/msup.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/msup",
           "spec_url": "https://w3c.github.io/mathml-core/#subscripts-and-superscripts-msub-msup-msubsup",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -58,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/mtable.json b/mathml/elements/mtable.json
index ce7c8bc3549787..9c922ed520e2a6 100644
--- a/mathml/elements/mtable.json
+++ b/mathml/elements/mtable.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mtable",
           "spec_url": "https://w3c.github.io/mathml-core/#table-or-matrix-mtable",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,6 +40,9 @@
         },
         "align": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -57,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -68,6 +76,9 @@
         },
         "columnalign": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -89,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,6 +112,9 @@
         },
         "columnlines": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -121,7 +136,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,6 +148,9 @@
         },
         "columnspacing": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -153,7 +172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -164,6 +184,9 @@
         },
         "frame": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -185,7 +208,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -196,6 +220,9 @@
         },
         "framespacing": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -217,7 +244,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -228,6 +256,9 @@
         },
         "rowalign": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -249,7 +280,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -260,6 +292,9 @@
         },
         "rowlines": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -281,7 +316,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -292,6 +328,9 @@
         },
         "rowspacing": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -313,7 +352,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -324,6 +364,9 @@
         },
         "width": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -345,7 +388,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -355,7 +399,7 @@
           },
           "named_spaces": {
             "__compat": {
-              "description": "Named spaces (e.g. <code>thinmathspace</code> to mean 3/18em)",
+              "description": "Named spaces (e.g. `thinmathspace` to mean 3/18em)",
               "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Values",
               "support": {
                 "chrome": {
@@ -378,7 +422,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/mathml/elements/mtd.json b/mathml/elements/mtd.json
index 7068ca216ec999..50b0acad90d3b2 100644
--- a/mathml/elements/mtd.json
+++ b/mathml/elements/mtd.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mtd",
           "spec_url": "https://w3c.github.io/mathml-core/#entry-in-table-or-matrix-mtd",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,6 +40,9 @@
         },
         "columnalign": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -57,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -69,6 +77,9 @@
         "columnspan": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-columnspan",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117"
@@ -90,7 +101,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -101,6 +113,9 @@
         },
         "rowalign": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -122,7 +137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -134,6 +150,9 @@
         "rowspan": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-rowspan",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "117"
@@ -155,7 +174,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/mtext.json b/mathml/elements/mtext.json
index 5e91fdb5da98fa..1507aa84f6704a 100644
--- a/mathml/elements/mtext.json
+++ b/mathml/elements/mtext.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mtext",
           "spec_url": "https://w3c.github.io/mathml-core/#text-mtext",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/mathml/elements/mtr.json b/mathml/elements/mtr.json
index 6783f8259c2eb6..ad9dc5f1b49318 100644
--- a/mathml/elements/mtr.json
+++ b/mathml/elements/mtr.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/mtr",
           "spec_url": "https://w3c.github.io/mathml-core/#row-in-table-or-matrix-mtr",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,6 +40,9 @@
         },
         "columnalign": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -57,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -68,6 +76,9 @@
         },
         "rowalign": {
           "__compat": {
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -89,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/munder.json b/mathml/elements/munder.json
index a751eb73be904b..7f38a38ecbedfb 100644
--- a/mathml/elements/munder.json
+++ b/mathml/elements/munder.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/munder",
           "spec_url": "https://w3c.github.io/mathml-core/#underscripts-and-overscripts-munder-mover-munderover",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "accentunder": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-accentunder",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/munderover.json b/mathml/elements/munderover.json
index d86656aea949f6..9afc90a28720a6 100644
--- a/mathml/elements/munderover.json
+++ b/mathml/elements/munderover.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/munderover",
           "spec_url": "https://w3c.github.io/mathml-core/#underscripts-and-overscripts-munder-mover-munderover",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -37,6 +41,9 @@
         "accent": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-accent",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -58,7 +65,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +78,9 @@
         "accentunder": {
           "__compat": {
             "spec_url": "https://w3c.github.io/mathml-core/#dfn-accentunder",
+            "tags": [
+              "web-features:mathml"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -91,7 +102,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/elements/semantics.json b/mathml/elements/semantics.json
index 1c7de43b9d185d..3d980b92a440be 100644
--- a/mathml/elements/semantics.json
+++ b/mathml/elements/semantics.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Element/semantics",
           "spec_url": "https://w3c.github.io/mathml-core/#semantics-and-presentation",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,7 +40,7 @@
         },
         "advanced_visible_child_selection": {
           "__compat": {
-            "description": "Use the <a href='https://developer.mozilla.org/docs/Web/MathML/Element/semantics#sect1'>algorithm described on MDN</a> to determine the visible child.",
+            "description": "Use the [algorithm described on MDN](https://developer.mozilla.org/docs/Web/MathML/Element/semantics#sect1) to determine the visible child.",
             "support": {
               "chrome": {
                 "version_added": false
@@ -59,7 +63,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/mathml/global_attributes.json b/mathml/global_attributes.json
index f776cfbd1c3882..6db62ba03bc5ba 100644
--- a/mathml/global_attributes.json
+++ b/mathml/global_attributes.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Global_attributes/dir",
           "spec_url": "https://w3c.github.io/mathml-core/#dfn-dir",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -21,9 +24,7 @@
               "version_added": false
             },
             "oculus": "mirror",
-            "opera": {
-              "version_added": false
-            },
+            "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
               "version_added": "8",
@@ -31,7 +32,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +46,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Global_attributes/displaystyle",
           "spec_url": "https://w3c.github.io/mathml-core/#dfn-displaystyle",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -53,25 +58,24 @@
             "firefox": {
               "version_added": "83",
               "impl_url": "https://hg.mozilla.org/mozilla-central/rev/60a72a6c7c1d",
-              "notes": "Prior to Firefox 83, the attribute was only accepted on a few elements, as specified in MathML 3, and was not implemented via <code>math-style</code>."
+              "notes": "Prior to Firefox 83, the attribute was only accepted on a few elements, as specified in MathML 3, and was not implemented via `math-style`."
             },
             "firefox_android": "mirror",
             "ie": {
               "version_added": false
             },
             "oculus": "mirror",
-            "opera": {
-              "version_added": false
-            },
+            "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
               "version_added": "14",
               "impl_url": "https://trac.webkit.org/changeset/267578",
-              "notes": "Since Safari 14.1, this attribute is implemented via <code>math-style</code>."
+              "notes": "Since Safari 14.1, this attribute is implemented via `math-style`."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -83,6 +87,9 @@
       "href": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Global_attributes/href",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": false
@@ -106,7 +113,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -135,9 +143,7 @@
               "version_added": false
             },
             "oculus": "mirror",
-            "opera": {
-              "version_added": false
-            },
+            "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
               "version_added": "5",
@@ -148,7 +154,8 @@
               "impl_url": "https://trac.webkit.org/changeset/62968"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -177,9 +184,7 @@
               "version_added": false
             },
             "oculus": "mirror",
-            "opera": {
-              "version_added": false
-            },
+            "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
               "version_added": "5",
@@ -190,7 +195,8 @@
               "impl_url": "https://trac.webkit.org/changeset/62968"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -225,9 +231,7 @@
               "version_added": false
             },
             "oculus": "mirror",
-            "opera": {
-              "version_added": false
-            },
+            "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
               "version_added": "5",
@@ -235,7 +239,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -245,7 +250,7 @@
         },
         "named_spaces": {
           "__compat": {
-            "description": "Named spaces (e.g. <code>thinmathspace</code> to mean 3/18em)",
+            "description": "Named spaces (e.g. `thinmathspace` to mean 3/18em)",
             "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Values",
             "support": {
               "chrome": {
@@ -268,7 +273,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -303,7 +309,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -314,7 +321,7 @@
         },
         "small_normal_big": {
           "__compat": {
-            "description": "<code>small</code>, <code>normal</code>, <code>big</code> values",
+            "description": "`small`, `normal`, `big` values",
             "support": {
               "chrome": {
                 "version_added": false
@@ -337,7 +344,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -351,6 +359,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Global_attributes/scriptlevel",
           "spec_url": "https://w3c.github.io/mathml-core/#dfn-scriptlevel",
+          "tags": [
+            "web-features:mathml"
+          ],
           "support": {
             "chrome": {
               "version_added": "109"
@@ -362,7 +373,7 @@
               "impl_url": "https://hg.mozilla.org/mozilla-central/rev/3b30c8db537c",
               "notes": [
                 "Prior to Firefox 70, the attribute was only accepted on a few elements, as specified in MathML 3.",
-                "Implementation does not rely on the CSS approach described in MathML Core (via <code>math-depth</code> and <code>font-size: math</code>)."
+                "Implementation does not rely on the CSS approach described in MathML Core (via `math-depth` and `font-size: math`)."
               ]
             },
             "firefox_android": "mirror",
@@ -370,16 +381,15 @@
               "version_added": false
             },
             "oculus": "mirror",
-            "opera": {
-              "version_added": false
-            },
+            "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
               "version_added": false
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/package-lock.json b/package-lock.json
index e89ca88064145d..b17072e830f275 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,24 +1,24 @@
 {
   "name": "@mdn/browser-compat-data",
-  "version": "5.5.46",
+  "version": "5.6.23",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@mdn/browser-compat-data",
-      "version": "5.5.46",
+      "version": "5.6.23",
       "hasInstallScript": true,
       "license": "CC0-1.0",
       "devDependencies": {
         "@babel/eslint-parser": "~7.25.1",
-        "@babel/plugin-syntax-import-assertions": "~7.24.1",
+        "@babel/plugin-syntax-import-assertions": "~7.26.0",
         "@ddbeck/mdn-content-inventory": "^0.2.20240621",
         "@desertnet/html-parser": "~1.0.1",
-        "@swc/cli": "^0.4.0",
-        "@swc/core": "1.7.11",
+        "@swc/cli": "^0.5.0",
+        "@swc/core": "1.10.1",
         "@types/deep-diff": "~1.0.1",
         "@types/mocha": "~10.0.0",
-        "@types/node": "~22.3.0",
+        "@types/node": "~22.10.0",
         "@types/sinon": "^17.0.0",
         "@types/yargs": "~17.0.10",
         "@typescript-eslint/eslint-plugin": "~7.18.0",
@@ -37,29 +37,31 @@
         "eslint": "~8.57.0",
         "eslint-config-standard": "~17.1.0",
         "eslint-import-resolver-typescript": "^3.5.2",
-        "eslint-plugin-import": "~2.29.0",
-        "eslint-plugin-jsdoc": "~50.2.1",
+        "eslint-plugin-import": "~2.31.0",
+        "eslint-plugin-jsdoc": "~50.6.0",
         "eslint-plugin-node": "~11.1.0",
         "eslint-plugin-prefer-arrow-functions": "~3.4.1",
         "eslint-plugin-promise": "~6.6.0",
-        "eslint-plugin-unicorn": "^55.0.0",
+        "eslint-plugin-unicorn": "^56.0.0",
         "fast-json-stable-stringify": "~2.1.0",
-        "fdir": "~6.2.0",
+        "fdir": "~6.4.0",
         "husky": "^9.1.1",
         "json-schema-to-typescript": "~15.0.0",
         "lint-staged": "^15.0.1",
-        "mocha": "~10.7.0",
+        "marked": "^15.0.1",
+        "mocha": "~11.0.1",
         "open-cli": "~8.0.0",
-        "ora": "~8.0.1",
-        "prettier": "~3.3.1",
-        "sinon": "^18.0.0",
+        "ora": "~8.1.0",
+        "prettier": "~3.4.0",
+        "sinon": "^19.0.1",
+        "tempy": "^3.1.0",
         "ts-node": "~10.9.1",
-        "typescript": "~5.5.2",
+        "typescript": "~5.7.2",
         "web-specs": "^3.0.0",
         "yargs": "~17.7.0"
       },
       "engines": {
-        "node": ">=18.0.0"
+        "node": ">=20"
       }
     },
     "node_modules/@ampproject/remapping": {
@@ -77,9 +79,9 @@
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     },
     "node_modules/@apidevtools/json-schema-ref-parser": {
-      "version": "11.6.4",
-      "resolved": "https://registry.npmjs.org/@apidevtools/json-schema-ref-parser/-/json-schema-ref-parser-11.6.4.tgz",
-      "integrity": "sha512-9K6xOqeevacvweLGik6LnZCb1fBtCOSIWQs8d096XGeqoLKC33UVMGz9+77Gw44KvbH4pKcQPWo4ZpxkXYj05w==",
+      "version": "11.7.0",
+      "resolved": "https://registry.npmjs.org/@apidevtools/json-schema-ref-parser/-/json-schema-ref-parser-11.7.0.tgz",
+      "integrity": "sha512-pRrmXMCwnmrkS3MLgAIW5dXRzeTv6GLjkjb4HmxNnvAKXN1Nfzp4KmGADBQvlVUcqi+a5D+hfGDLLnd5NnYxog==",
       "dev": true,
       "dependencies": {
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@@ -107,9 +109,9 @@
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-      "version": "7.24.9",
-      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.24.9.tgz",
-      "integrity": "sha512-e701mcfApCJqMMueQI0Fb68Amflj83+dvAvHawoBpAz+GDjCIyGHzNwnefjsWJ3xiYAqqiQFoWbspGYBdb2/ng==",
+      "version": "7.25.4",
+      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.25.4.tgz",
+      "integrity": "sha512-+LGRog6RAsCJrrrg/IO6LGmpphNe5DiK30dGjCoxxeGv49B10/3XYGxPsAwrDlMFcFEvdAUavDT8r9k/hSyQqQ==",
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@@ -117,22 +119,22 @@
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-      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.24.9.tgz",
-      "integrity": "sha512-5e3FI4Q3M3Pbr21+5xJwCv6ZT6KmGkI0vw3Tozy5ODAQFTIWe37iT8Cr7Ice2Ntb+M3iSKCEWMB1MBgKrW3whg==",
+      "version": "7.25.2",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.25.2.tgz",
+      "integrity": "sha512-BBt3opiCOxUr9euZ5/ro/Xv8/V7yJ5bjYMqG/C1YAo8MIKAnumZalCN+msbci3Pigy4lIQfPUpfMM27HMGaYEA==",
       "dev": true,
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-        "@babel/generator": "^7.24.9",
-        "@babel/helper-compilation-targets": "^7.24.8",
-        "@babel/helper-module-transforms": "^7.24.9",
-        "@babel/helpers": "^7.24.8",
-        "@babel/parser": "^7.24.8",
-        "@babel/template": "^7.24.7",
-        "@babel/traverse": "^7.24.8",
-        "@babel/types": "^7.24.9",
+        "@babel/generator": "^7.25.0",
+        "@babel/helper-compilation-targets": "^7.25.2",
+        "@babel/helper-module-transforms": "^7.25.2",
+        "@babel/helpers": "^7.25.0",
+        "@babel/parser": "^7.25.0",
+        "@babel/template": "^7.25.0",
+        "@babel/traverse": "^7.25.2",
+        "@babel/types": "^7.25.2",
         "convert-source-map": "^2.0.0",
         "debug": "^4.1.0",
         "gensync": "^1.0.0-beta.2",
@@ -148,9 +150,9 @@
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-      "resolved": "https://registry.npmjs.org/@babel/eslint-parser/-/eslint-parser-7.25.1.tgz",
-      "integrity": "sha512-Y956ghgTT4j7rKesabkh5WeqgSFZVFwaPR0IWFm7KFHFmmJ4afbG49SmfW4S+GyRPx0Dy5jxEWA5t0rpxfElWg==",
+      "version": "7.25.9",
+      "resolved": "https://registry.npmjs.org/@babel/eslint-parser/-/eslint-parser-7.25.9.tgz",
+      "integrity": "sha512-5UXfgpK0j0Xr/xIdgdLEhOFxaDZ0bRPWJJchRpqOSur/3rZoPbqqki5mm0p4NE2cs28krBEiSM2MB7//afRSQQ==",
       "dev": true,
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@@ -166,13 +168,13 @@
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-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.24.10.tgz",
-      "integrity": "sha512-o9HBZL1G2129luEUlG1hB4N/nlYNWHnpwlND9eOMclRqqu1YDy2sSYVCFUZwl8I1Gxh+QSRrP2vD7EpUmFVXxg==",
+      "version": "7.25.5",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.25.5.tgz",
+      "integrity": "sha512-abd43wyLfbWoxC6ahM8xTkqLpGB2iWBVyuKC9/srhFunCd1SDNrV1s72bBpK4hLj8KLzHBBcOblvLQZBNw9r3w==",
       "dev": true,
       "peer": true,
       "dependencies": {
-        "@babel/types": "^7.24.9",
+        "@babel/types": "^7.25.4",
         "@jridgewell/gen-mapping": "^0.3.5",
         "@jridgewell/trace-mapping": "^0.3.25",
         "jsesc": "^2.5.1"
@@ -182,13 +184,13 @@
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-      "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.24.8.tgz",
-      "integrity": "sha512-oU+UoqCHdp+nWVDkpldqIQL/i/bvAv53tRqLG/s+cOXxe66zOYLU7ar/Xs3LdmBihrUMEUhwu6dMZwbNOYDwvw==",
+      "version": "7.25.2",
+      "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.25.2.tgz",
+      "integrity": "sha512-U2U5LsSaZ7TAt3cfaymQ8WHh0pxvdHoEk6HVpaexxixjyEquMh0L0YNJNM6CTGKMXV1iksi0iZkGw4AcFkPaaw==",
       "dev": true,
       "peer": true,
       "dependencies": {
-        "@babel/compat-data": "^7.24.8",
+        "@babel/compat-data": "^7.25.2",
         "@babel/helper-validator-option": "^7.24.8",
         "browserslist": "^4.23.1",
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@@ -198,46 +200,6 @@
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-      "version": "7.24.7",
-      "resolved": "https://registry.npmjs.org/@babel/helper-environment-visitor/-/helper-environment-visitor-7.24.7.tgz",
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-      },
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-    "node_modules/@babel/helper-function-name": {
-      "version": "7.24.7",
-      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.24.7.tgz",
-      "integrity": "sha512-FyoJTsj/PEUWu1/TYRiXTIHc8lbw+TDYkZuoE43opPS5TrI7MyONBE1oNvfguEXAD9yhQRrVBnXdXzSLQl9XnA==",
-      "dev": true,
-      "peer": true,
-      "dependencies": {
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-        "@babel/types": "^7.24.7"
-      },
-      "engines": {
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-    },
-    "node_modules/@babel/helper-hoist-variables": {
-      "version": "7.24.7",
-      "resolved": "https://registry.npmjs.org/@babel/helper-hoist-variables/-/helper-hoist-variables-7.24.7.tgz",
-      "integrity": "sha512-MJJwhkoGy5c4ehfoRyrJ/owKeMl19U54h27YYftT0o2teQ3FJ3nQUf/I3LlJsX4l3qlw7WRXUmiyajvHXoTubQ==",
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       "resolved": "https://registry.npmjs.org/@babel/helper-module-imports/-/helper-module-imports-7.24.7.tgz",
@@ -253,17 +215,16 @@
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-      "resolved": "https://registry.npmjs.org/@babel/helper-module-transforms/-/helper-module-transforms-7.24.9.tgz",
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+      "version": "7.25.2",
+      "resolved": "https://registry.npmjs.org/@babel/helper-module-transforms/-/helper-module-transforms-7.25.2.tgz",
+      "integrity": "sha512-BjyRAbix6j/wv83ftcVJmBt72QtHI56C7JXZoG2xATiLpmoC7dpd8WnkikExHDVPpi/3qCmO6WY1EaXOluiecQ==",
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-        "@babel/helper-split-export-declaration": "^7.24.7",
-        "@babel/helper-validator-identifier": "^7.24.7"
+        "@babel/helper-validator-identifier": "^7.24.7",
+        "@babel/traverse": "^7.25.2"
       },
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@@ -273,9 +234,9 @@
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-      "version": "7.24.8",
-      "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.24.8.tgz",
-      "integrity": "sha512-FFWx5142D8h2Mgr/iPVGH5G7w6jDn4jUSpZTyDnQO0Yn7Ks2Kuz6Pci8H6MPCoUJegd/UZQ3tAvfLCxQSnWWwg==",
+      "version": "7.25.9",
+      "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.25.9.tgz",
+      "integrity": "sha512-kSMlyUVdWe25rEsRGviIgOWnoT/nfABVWlqt9N19/dIPWViAOW2s9wznP5tURbs/IDuNk4gPy3YdYRgH3uxhBw==",
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@@ -295,19 +256,6 @@
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-      "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.24.7.tgz",
-      "integrity": "sha512-oy5V7pD+UvfkEATUKvIjvIAH/xCzfsFVw7ygW2SI6NClZzquT+mwdTfgfdbUiceh6iQO0CHtCPsyze/MZ2YbAA==",
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@@ -338,14 +286,14 @@
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-      "integrity": "sha512-gV2265Nkcz7weJJfvDoAEVzC1e2OTDpkGbEsebse8koXUJUXPsCMi7sRo/+SPMuMZ9MtUPnGwITTnQnU5YjyaQ==",
+      "version": "7.25.0",
+      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.25.0.tgz",
+      "integrity": "sha512-MjgLZ42aCm0oGjJj8CtSM3DB8NOOf8h2l7DCTePJs29u+v7yO/RBX9nShlKMgFnRks/Q4tBAe7Hxnov9VkGwLw==",
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       "peer": true,
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-        "@babel/template": "^7.24.7",
-        "@babel/types": "^7.24.8"
+        "@babel/template": "^7.25.0",
+        "@babel/types": "^7.25.0"
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@@ -423,11 +371,14 @@
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+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.25.4.tgz",
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       "dev": true,
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+      "dependencies": {
+        "@babel/types": "^7.25.4"
+      },
       "bin": {
         "parser": "bin/babel-parser.js"
       },
@@ -436,12 +387,12 @@
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+        "@babel/helper-plugin-utils": "^7.25.9"
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@@ -451,35 +402,32 @@
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-        "@babel/types": "^7.24.7"
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@@ -488,9 +436,9 @@
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+      "integrity": "sha512-aDGDLU+j9tJcUdPGOaHmVF1u/hhI+CsGkT02V3OKlHDV7IukOI+nTWAGkiZEKCO35rWN1wIr4tS7YFr1f4qSvA==",
+      "dev": true,
+      "dependencies": {
+        "fast-fifo": "^1.3.2",
+        "queue-tick": "^1.0.1",
+        "text-decoder": "^1.1.0"
+      },
+      "optionalDependencies": {
+        "bare-events": "^2.2.0"
+      }
+    },
     "node_modules/string_decoder": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
@@ -8515,13 +8339,14 @@
         "node": ">=4"
       }
     },
-    "node_modules/strip-eof": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
-      "integrity": "sha512-7FCwGGmx8mD5xQd3RPUvnSpUXHM3BWuzjtpD4TXsfcZ9EL4azvVVUscFYwD9nx8Kh+uCBC00XBtAykoMHwTh8Q==",
+    "node_modules/strip-dirs": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/strip-dirs/-/strip-dirs-3.0.0.tgz",
+      "integrity": "sha512-I0sdgcFTfKQlUPZyAqPJmSG3HLO9rWDFnxonnIbskYNM3DwFOeTNB5KzVq3dA1GdRAc/25b5Y7UO2TQfKWw4aQ==",
       "dev": true,
-      "engines": {
-        "node": ">=0.10.0"
+      "dependencies": {
+        "inspect-with-kind": "^1.0.5",
+        "is-plain-obj": "^1.1.0"
       }
     },
     "node_modules/strip-final-newline": {
@@ -8557,18 +8382,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/strip-outer": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/strip-outer/-/strip-outer-2.0.0.tgz",
-      "integrity": "sha512-A21Xsm1XzUkK0qK1ZrytDUvqsQWict2Cykhvi0fBQntGG5JSprESasEyV1EZ/4CiR5WB5KjzLTrP/bO37B0wPg==",
-      "dev": true,
-      "engines": {
-        "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/strtok3": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/strtok3/-/strtok3-7.1.1.tgz",
@@ -8635,6 +8448,17 @@
         "node": ">=6"
       }
     },
+    "node_modules/tar-stream": {
+      "version": "3.1.7",
+      "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-3.1.7.tgz",
+      "integrity": "sha512-qJj60CXt7IU1Ffyc3NJMjh6EkuCFej46zUqJ4J7pqYlThyd9bO0XBTmcOIhSzZJVWfsLks0+nle/j538YAW9RQ==",
+      "dev": true,
+      "dependencies": {
+        "b4a": "^1.6.4",
+        "fast-fifo": "^1.2.0",
+        "streamx": "^2.15.0"
+      }
+    },
     "node_modules/temp-dir": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/temp-dir/-/temp-dir-3.0.0.tgz",
@@ -8649,6 +8473,7 @@
       "resolved": "https://registry.npmjs.org/tempy/-/tempy-3.1.0.tgz",
       "integrity": "sha512-7jDLIdD2Zp0bDe5r3D2qtkd1QOCacylBuL7oa4udvN6v2pqr4+LcCr67C8DR1zkpaZ8XosF5m1yQSabKAW6f2g==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "is-stream": "^3.0.0",
         "temp-dir": "^3.0.0",
@@ -8700,23 +8525,35 @@
         "node": ">=18"
       }
     },
+    "node_modules/text-decoder": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/text-decoder/-/text-decoder-1.2.1.tgz",
+      "integrity": "sha512-x9v3H/lTKIJKQQe7RPQkLfKAnc9lUTkWDypIQgTzPJAq+5/GCDHonmshfvlsNSj58yyshbIJJDLmU15qNERrXQ==",
+      "dev": true
+    },
     "node_modules/text-table": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
       "integrity": "sha512-N+8UisAXDGk8PFXP4HAzVR9nbfmVJ3zYLAWiTIoqC5v5isinhr+r5uaO8+7r3BMfuNIufIsA7RdpVgacC2cSpw==",
       "dev": true
     },
-    "node_modules/timers-ext": {
-      "version": "0.1.8",
-      "resolved": "https://registry.npmjs.org/timers-ext/-/timers-ext-0.1.8.tgz",
-      "integrity": "sha512-wFH7+SEAcKfJpfLPkrgMPvvwnEtj8W4IurvEyrKsDleXnKLCDw71w8jltvfLa8Rm4qQxxT4jmDBYbJG/z7qoww==",
+    "node_modules/through": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
+      "integrity": "sha512-w89qg7PI8wAdvX60bMDP+bFoD5Dvhm9oLheFp5O4a2QF0cSBGsBX4qZmadPMvVqlLJBBci+WqGGOAPvcDeNSVg==",
+      "dev": true
+    },
+    "node_modules/tinyglobby": {
+      "version": "0.2.10",
+      "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.10.tgz",
+      "integrity": "sha512-Zc+8eJlFMvgatPZTl6A9L/yht8QqdmUNtURHaKZLmKBE12hNPSrqNkUp2cs3M/UKmNVVAMFQYSjYIVHDjW5zew==",
       "dev": true,
       "dependencies": {
-        "es5-ext": "^0.10.64",
-        "next-tick": "^1.1.0"
+        "fdir": "^6.4.2",
+        "picomatch": "^4.0.2"
       },
       "engines": {
-        "node": ">=0.12"
+        "node": ">=12.0.0"
       }
     },
     "node_modules/to-fast-properties": {
@@ -8758,30 +8595,6 @@
         "url": "https://github.com/sponsors/Borewit"
       }
     },
-    "node_modules/trim-repeated": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/trim-repeated/-/trim-repeated-2.0.0.tgz",
-      "integrity": "sha512-QUHBFTJGdOwmp0tbOG505xAgOp/YliZP/6UgafFXYZ26WT1bvQmSMJUvkeVSASuJJHbqsFbynTvkd5W8RBTipg==",
-      "dev": true,
-      "dependencies": {
-        "escape-string-regexp": "^5.0.0"
-      },
-      "engines": {
-        "node": ">=12"
-      }
-    },
-    "node_modules/trim-repeated/node_modules/escape-string-regexp": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-5.0.0.tgz",
-      "integrity": "sha512-/veY75JbMK4j1yjvuUxuVsiS/hr/4iHs9FTT6cgTexxdE0Ly/glccBAkloH/DofkjRbZU3bnoj38mOmhkZ0lHw==",
-      "dev": true,
-      "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/ts-api-utils": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/ts-api-utils/-/ts-api-utils-1.3.0.tgz",
@@ -8871,15 +8684,9 @@
       }
     },
     "node_modules/tslib": {
-      "version": "2.6.3",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.3.tgz",
-      "integrity": "sha512-xNvxJEOUiWPGhUuUdQgAJPKOOJfGnIyKySOc09XkKsgdUV/3E2zvwZYdejjmRgPCgcym1juLH3226yA7sEFJKQ==",
-      "dev": true
-    },
-    "node_modules/type": {
-      "version": "2.7.3",
-      "resolved": "https://registry.npmjs.org/type/-/type-2.7.3.tgz",
-      "integrity": "sha512-8j+1QmAbPvLZow5Qpi6NCaN8FB60p/6x8/vfNqOk/hC+HuvFZhL4+WfekuhQLiqFZXOgQdrs3B+XxEmCc6b3FQ==",
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.7.0.tgz",
+      "integrity": "sha512-gLXCKdN1/j47AiHiOkJN69hJmcbGTHI0ImLmbYLHykhgeN0jVGola9yVjFgzCUklsZQMW55o+dW7IXv3RCXDzA==",
       "dev": true
     },
     "node_modules/type-check": {
@@ -8986,9 +8793,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.5.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz",
-      "integrity": "sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==",
+      "version": "5.7.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.7.2.tgz",
+      "integrity": "sha512-i5t66RHxDvVN40HfDd1PsEThGNnlMCMT3jMUuoh9/0TaqWevNontacunWyN02LA9/fIbEWlcHZcgTKb9QoaLfg==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -8998,6 +8805,18 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/uint8array-extras": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/uint8array-extras/-/uint8array-extras-1.4.0.tgz",
+      "integrity": "sha512-ZPtzy0hu4cZjv3z5NW9gfKnNLjoz4y6uv4HlelAjDK7sY/xOkKZv9xK/WQpcsBB3jEybChz9DPC2U/+cusjJVQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/unbox-primitive": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/unbox-primitive/-/unbox-primitive-1.0.2.tgz",
@@ -9013,10 +8832,20 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/unbzip2-stream": {
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.4.3.tgz",
+      "integrity": "sha512-mlExGW4w71ebDJviH16lQLtZS32VKqsSfk80GCfUlwT/4/hNRFsoscrF/c++9xinkMzECL1uL9DDwXqFWkruPg==",
+      "dev": true,
+      "dependencies": {
+        "buffer": "^5.2.1",
+        "through": "^2.3.8"
+      }
+    },
     "node_modules/undici-types": {
-      "version": "6.18.2",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.18.2.tgz",
-      "integrity": "sha512-5ruQbENj95yDYJNS3TvcaxPMshV7aizdv/hWYjGIKoANWKjhWNBsr2YEuYZKodQulB1b8l7ILOuDQep3afowQQ==",
+      "version": "6.20.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.20.0.tgz",
+      "integrity": "sha512-Ny6QZ2Nju20vw1SRHe3d9jVu6gJ+4e3+MMpqu7pqE5HT6WsTSlce++GQmK5UXS8mzV8DSYHrQH+Xrf2jVcuKNg==",
       "dev": true
     },
     "node_modules/unique-string": {
@@ -9120,20 +8949,11 @@
       }
     },
     "node_modules/web-specs": {
-      "version": "3.16.0",
-      "resolved": "https://registry.npmjs.org/web-specs/-/web-specs-3.16.0.tgz",
-      "integrity": "sha512-rlLpmrkEm/64vY5WqRZvd6cE49Z+qob6hH1SeE8uFV9BQRxxHmOh147Ku9i45BDp0HwQ51hp58pIYLJf9KvNOA==",
+      "version": "3.29.0",
+      "resolved": "https://registry.npmjs.org/web-specs/-/web-specs-3.29.0.tgz",
+      "integrity": "sha512-K78MP/7dbGV9Zis8ux/1FxR9MeF2WAF4lRXgyq8qXTNQ0KiKbnUMVDVLiSFtACuD1QdWrbukjN/8msaikAK6bA==",
       "dev": true
     },
-    "node_modules/web-streams-polyfill": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.3.3.tgz",
-      "integrity": "sha512-d2JWLCivmZYTSIoge9MsgFCZrt571BikcWGYkjC1khllbTeDlGqZ2D8vD8E/lJa8WGWbb7Plm8/XJYV7IJHZZw==",
-      "dev": true,
-      "engines": {
-        "node": ">= 8"
-      }
-    },
     "node_modules/which": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
@@ -9402,6 +9222,19 @@
         "node": ">=8"
       }
     },
+    "node_modules/yauzl": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-3.2.0.tgz",
+      "integrity": "sha512-Ow9nuGZE+qp1u4JIPvg+uCiUr7xGQWdff7JQSk5VGYTAZMDe2q8lxJ10ygv10qmSj031Ty/6FNJpLO4o1Sgc+w==",
+      "dev": true,
+      "dependencies": {
+        "buffer-crc32": "~0.2.3",
+        "pend": "~1.2.0"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/yn": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
diff --git a/package.json b/package.json
index 50d8edcce318d9..69a916ed4b1785 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mdn/browser-compat-data",
-  "version": "5.5.46",
+  "version": "5.6.23",
   "description": "Browser compatibility data provided by MDN Web Docs",
   "main": "index.ts",
   "type": "module",
@@ -22,7 +22,7 @@
   },
   "types": "./build/require.d.ts",
   "engines": {
-    "node": ">=18.0.0"
+    "node": ">=20"
   },
   "repository": {
     "type": "git",
@@ -45,14 +45,14 @@
   "homepage": "https://github.com/mdn/browser-compat-data#readme",
   "devDependencies": {
     "@babel/eslint-parser": "~7.25.1",
-    "@babel/plugin-syntax-import-assertions": "~7.24.1",
+    "@babel/plugin-syntax-import-assertions": "~7.26.0",
     "@ddbeck/mdn-content-inventory": "^0.2.20240621",
     "@desertnet/html-parser": "~1.0.1",
-    "@swc/cli": "^0.4.0",
-    "@swc/core": "1.7.11",
+    "@swc/cli": "^0.5.0",
+    "@swc/core": "1.10.1",
     "@types/deep-diff": "~1.0.1",
     "@types/mocha": "~10.0.0",
-    "@types/node": "~22.3.0",
+    "@types/node": "~22.10.0",
     "@types/sinon": "^17.0.0",
     "@types/yargs": "~17.0.10",
     "@typescript-eslint/eslint-plugin": "~7.18.0",
@@ -71,24 +71,26 @@
     "eslint": "~8.57.0",
     "eslint-config-standard": "~17.1.0",
     "eslint-import-resolver-typescript": "^3.5.2",
-    "eslint-plugin-import": "~2.29.0",
-    "eslint-plugin-jsdoc": "~50.2.1",
+    "eslint-plugin-import": "~2.31.0",
+    "eslint-plugin-jsdoc": "~50.6.0",
     "eslint-plugin-node": "~11.1.0",
     "eslint-plugin-prefer-arrow-functions": "~3.4.1",
     "eslint-plugin-promise": "~6.6.0",
-    "eslint-plugin-unicorn": "^55.0.0",
+    "eslint-plugin-unicorn": "^56.0.0",
     "fast-json-stable-stringify": "~2.1.0",
-    "fdir": "~6.2.0",
+    "fdir": "~6.4.0",
     "husky": "^9.1.1",
     "json-schema-to-typescript": "~15.0.0",
     "lint-staged": "^15.0.1",
-    "mocha": "~10.7.0",
+    "marked": "^15.0.1",
+    "mocha": "~11.0.1",
     "open-cli": "~8.0.0",
-    "ora": "~8.0.1",
-    "prettier": "~3.3.1",
-    "sinon": "^18.0.0",
+    "ora": "~8.1.0",
+    "prettier": "~3.4.0",
+    "sinon": "^19.0.1",
+    "tempy": "^3.1.0",
     "ts-node": "~10.9.1",
-    "typescript": "~5.5.2",
+    "typescript": "~5.7.2",
     "web-specs": "^3.0.0",
     "yargs": "~17.7.0"
   },
diff --git a/release_notes/v4.md b/release_notes/v4.md
index da26761bcbf64e..5560e50d792b16 100644
--- a/release_notes/v4.md
+++ b/release_notes/v4.md
@@ -2214,7 +2214,7 @@ September 16, 2021
   - `api.AudioNodeOptions` ([#12366](https://github.com/mdn/browser-compat-data/pull/12366))
   - `api.DOMPointInit` ([#12335](https://github.com/mdn/browser-compat-data/pull/12335))
   - `api.HTMLSourceElement.keySystem` ([#12383](https://github.com/mdn/browser-compat-data/pull/12383))
-  - `api.Transferable` ([#12376](https://github.com/mdn/browser-compat-data/pull/12376)
+  - `api.Transferable` ([#12376](https://github.com/mdn/browser-compat-data/pull/12376))
   - `api.Window.routeEvent` ([#12403](https://github.com/mdn/browser-compat-data/pull/12403))
 
 ### Known issues
diff --git a/schemas/compat-data-schema.md b/schemas/compat-data-schema.md
index d36cfc19013431..d87fdc7cdffe58 100644
--- a/schemas/compat-data-schema.md
+++ b/schemas/compat-data-schema.md
@@ -87,7 +87,7 @@ Here is an example of a `__compat` statement, with all of the properties and the
       "fake_event": {
         // ↓↓↓↓↓↓
         "__compat": {
-          "description": "<code>fake</code> event", // A friendly description of the feature
+          "description": "`fake` event", // A friendly description of the feature
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Document/fake_event", // The associated MDN article
           "spec_url": [
             // The spec URL(s) for the feature if applicable, may be one or many
@@ -119,7 +119,7 @@ Here is an example of a `__compat` statement, with all of the properties and the
               // Supported since IE 10, but has a caveat that impacts compatibility
               "version_added": "10",
               "partial_implementation": true,
-              "notes": "The <code>onfake</code> event handler property is not supported.",
+              "notes": "The `onfake` event handler property is not supported.",
             },
             "oculus": "mirror",
             "opera": {
@@ -174,7 +174,7 @@ The `__compat` object consists of the following:
 - An optional `description` property to **describe the feature**.
   A string containing a human-readable description of the feature.
   It is intended to be used as a caption or title and should be kept short.
-  The `<code>`, `<kbd>`, `<em>`, and `<strong>` HTML elements may be used.
+  This property may be formatted using Markdown, see the rules for `notes`.
 
 - An automated `source_file` property containing the path to the source file containing the feature. This is used to create links to the repository source (in the form of `https://github.com/mdn/browser-compat-data/blob/main/<source_file>`). For example, `api.History.forward` will contain a `source_file` property of `api/History.json` since the feature is defined in that file.
 
@@ -188,7 +188,7 @@ The `__compat` object consists of the following:
 - An optional `tags` property which is an array of strings allowing to assign tags to the feature.
   Each tag in the array must be namespaced. The currently allowed namespaces are:
 
-  - `web-features`: A namespace to tag features belonging to a web platform feature group as defined by [web-platform-dx/web-features](https://github.com/web-platform-dx/web-features/blob/main/feature-group-definitions/README.md).
+  - `web-features`: A namespace to tag features belonging to a web platform feature group as defined by [web-platform-dx/web-features](https://github.com/web-platform-dx/web-features/blob/main/features/README.md).
 
   For more information, see the [tagging data guidelines](../docs/data-guidelines/tags.md).
 
@@ -210,7 +210,8 @@ The currently accepted browser identifiers should be declared in alphabetical or
 - `safari`, Safari on macOS
 - `safari_ios`, Safari on iOS, based on the iOS version
 - `samsunginternet_android`, the Samsung Internet browser (Android version)
-- `webview_android`, WebView, the built-in browser for Android
+- `webview_android`, WebView, the embedded browser for Android applications
+- `webview_ios`, WebKit WebView, the embedded browser for iOS applications, based on the iOS version
 
 Desktop browser identifiers are mandatory, with the `version_added` property set to `null` if support is unknown.
 
@@ -429,7 +430,7 @@ An optional array of objects describing flags that must be configured for this b
   - `preference` a flag the user can set (like in `about:config` in Firefox).
   - `runtime_flag` a flag to be set before starting the browser.
 - `name` (mandatory): a string giving the value which the specified flag must be set to for this feature to work.
-- `value_to_set` (optional): representing the actual value to set the flag to. It is a string, that may be converted to the right type (that is `true` or `false` for Boolean value, or `4` for an integer value). It doesn't need to be enclosed in `<code>` tags.
+- `value_to_set` (optional): representing the actual value to set the flag to. It is a string, that may be converted to the right type (that is `true` or `false` for Boolean value, or `4` for an integer value). It doesn't need to be enclosed in backticks.
 
 Example for one flag required:
 
@@ -485,12 +486,12 @@ Example:
   "version_added": "3.5",
   "notes": [
     "Does not work on ::first-letter pseudo-elements.",
-    "Has not been updated to the latest specification, see <a href='https://bugzil.la/1234567'>bug 1234567</a>."
+    "Has not been updated to the latest specification, see [bug 1234567](https://bugzil.la/1234567)."
   ]
 }
 ```
 
-The `<code>`, `<kbd>`, `<em>`, and `<strong>` HTML elements may be used. In addition, `<a>` tags may be used, such as to link to a browser's bug report, or MDN documentation. Do not format `notes` as Markdown.
+Notes may be formatted in Markdown. Only links, bold, italics, codeblocks, and `<kbd>` may be used. Headers, tables and other Markdown features or HTML elements may not be used.
 
 #### `partial_implementation`
 
diff --git a/schemas/compat-data.schema.json b/schemas/compat-data.schema.json
index 0bb5dc336c94a4..b244ea90c482c2 100644
--- a/schemas/compat-data.schema.json
+++ b/schemas/compat-data.schema.json
@@ -188,7 +188,8 @@
           "safari",
           "safari_ios",
           "samsunginternet_android",
-          "webview_android"
+          "webview_android",
+          "webview_ios"
         ]
       },
       "additionalProperties": {
diff --git a/scripts/build/index.ts b/scripts/build/index.ts
index 773163b774f57a..a7862cd98041b5 100644
--- a/scripts/build/index.ts
+++ b/scripts/build/index.ts
@@ -2,10 +2,13 @@
  * See LICENSE file for more information. */
 
 import fs from 'node:fs/promises';
+import { relative } from 'node:path';
+import { fileURLToPath } from 'node:url';
 
 import esMain from 'es-main';
 import stringify from 'fast-json-stable-stringify';
 import { compareVersions } from 'compare-versions';
+import { marked } from 'marked';
 
 import { InternalSupportStatement } from '../../types/index.js';
 import { BrowserName, CompatData, VersionValue } from '../../types/types.js';
@@ -27,6 +30,14 @@ const targetdir = new URL('./build/', rootdir);
 
 const verbatimFiles = ['LICENSE', 'README.md'];
 
+function logWrite(url: URL, description: string = '') {
+  if (description) {
+    description = ` (${description})`;
+  }
+  const path = relative(fileURLToPath(rootdir), fileURLToPath(url));
+  console.log(`Wrote: ${path}${description}`);
+}
+
 /**
  * Generate metadata to embed into BCD builds
  * @returns Metadata to embed into BCD
@@ -36,6 +47,19 @@ export const generateMeta = (): any => ({
   timestamp: new Date(),
 });
 
+/**
+ * Converts Markdown to HTML and sanitizes output
+ * @param {string | string[]} markdown The Markdown to convert
+ * @returns {string | string[]} The HTML output
+ */
+const mdToHtml = (markdown: string): string => {
+  // "as string" cast because TS thinks response could be a promise
+  return (marked.parseInline(markdown) as string)
+    .replace(/&#39;/g, "'")
+    .replace(/&quot;/g, '"')
+    .replace(/&amp;([\w#]+);/g, '&$1;');
+};
+
 /**
  * Apply mirroring to a feature
  * @param feature The BCD to perform mirroring on
@@ -109,6 +133,44 @@ export const addVersionLast = (feature: WalkOutput): void => {
   }
 };
 
+/**
+ * Convert descriptions and notes from Markdown to HTML
+ * @param {WalkOutput} feature The BCD to perform note conversion on
+ * @returns {void}
+ */
+export const transformMD = (feature: WalkOutput): void => {
+  if ('description' in feature.data.__compat) {
+    feature.data.__compat.description = mdToHtml(
+      feature.data.__compat.description,
+    );
+  }
+
+  for (const [browser, supportData] of Object.entries(
+    feature.compat.support as InternalSupportStatement,
+  )) {
+    if (!supportData) continue;
+
+    if (Array.isArray(supportData)) {
+      for (let i = 0; i < supportData.length; i++) {
+        if ('notes' in supportData[i]) {
+          (feature.data as any).__compat.support[browser][i].notes =
+            Array.isArray(supportData[i].notes)
+              ? supportData[i].notes.map((md) => mdToHtml(md))
+              : mdToHtml(supportData[i].notes);
+        }
+      }
+    } else if (typeof supportData === 'object') {
+      if ('notes' in supportData) {
+        (feature.data as any).__compat.support[browser].notes = Array.isArray(
+          (supportData as any).notes,
+        )
+          ? (supportData as any).notes.map((md) => mdToHtml(md))
+          : mdToHtml((supportData as any).notes);
+      }
+    }
+  }
+};
+
 /**
  * Applies transforms to the given data.
  * @param data - The data to apply transforms to.
@@ -119,6 +181,7 @@ export const applyTransforms = (data): void => {
   for (const feature of walker) {
     applyMirroring(feature);
     addVersionLast(feature);
+    transformMD(feature);
   }
 };
 
@@ -146,6 +209,7 @@ const writeData = async () => {
   const dest = new URL('data.json', targetdir);
   const data = await createDataBundle();
   await fs.writeFile(dest, stringify(data));
+  logWrite(dest, 'data');
 };
 
 /**
@@ -159,6 +223,7 @@ const bcd = JSON.parse(fs.readFileSync(new URL('./data.json', import.meta.url)))
 export default bcd;
 `;
   await fs.writeFile(dest, content);
+  logWrite(dest, 'wrapper for old NodeJS versions');
 };
 
 /**
@@ -167,6 +232,7 @@ export default bcd;
 const writeTypeScript = async () => {
   const destRequire = new URL('require.d.ts', targetdir);
   const destImport = new URL('import.d.mts', targetdir);
+  const destTypes = new URL('types.d.ts', targetdir);
   const content = `/* This file is a part of @mdn/browser-compat-data
  * See LICENSE file for more information. */
 
@@ -177,9 +243,13 @@ export default bcd;
 export * from "./types.js";`;
 
   await fs.writeFile(destRequire, content);
+  logWrite(destRequire, 'CommonJS types');
+
   await fs.writeFile(destImport, content);
+  logWrite(destImport, 'ESM types');
 
-  await compileTS(new URL('types.d.ts', targetdir));
+  await compileTS(destTypes);
+  logWrite(destTypes, 'data types');
 };
 
 /**
@@ -190,6 +260,7 @@ const copyFiles = async () => {
     const src = new URL(file, rootdir);
     const dest = new URL(file, targetdir);
     await fs.copyFile(src, dest);
+    logWrite(dest);
   }
 };
 
@@ -252,6 +323,7 @@ const writeManifest = async () => {
   const dest = new URL('package.json', targetdir);
   const manifest = createManifest();
   await fs.writeFile(dest, JSON.stringify(manifest, null, 2));
+  logWrite(dest, 'manifest');
 };
 
 /**
diff --git a/scripts/build/mirror.test.ts b/scripts/build/mirror.test.ts
index caf9249034fd77..6a6a5a33269aba 100644
--- a/scripts/build/mirror.test.ts
+++ b/scripts/build/mirror.test.ts
@@ -143,7 +143,7 @@ describe('mirror', () => {
           chrome: {
             version_added: '65',
             notes: [
-              'Before Chrome 70, this method always returned <code>true</code> even if the webcam was not connected. Since version 70, this method correctly returns the webcam state.',
+              'Before Chrome 70, this method always returned `true` even if the webcam was not connected. Since version 70, this method correctly returns the webcam state.',
               'Google Chrome will always use the default webcam.',
             ],
           },
@@ -153,12 +153,27 @@ describe('mirror', () => {
         assert.deepEqual(mirrored, {
           version_added: '52',
           notes: [
-            'Before Opera 57, this method always returned <code>true</code> even if the webcam was not connected. Since version 57, this method correctly returns the webcam state.',
+            'Before Opera 57, this method always returned `true` even if the webcam was not connected. Since version 57, this method correctly returns the webcam state.',
             'Opera will always use the default webcam.',
           ],
         });
       });
 
+      it('Firefox -> Firefox Android', () => {
+        const support = {
+          firefox: {
+            version_added: '70',
+            notes: 'Firefox 73 added support for this thing.',
+          },
+        };
+
+        const mirrored = mirrorSupport('firefox_android', support);
+        assert.deepEqual(mirrored, {
+          version_added: '79',
+          notes: 'Firefox for Android 79 added support for this thing.',
+        });
+      });
+
       it('ChromeOS is not renamed to EdgeOS, OperaOS, etc.', () => {
         const support = {
           chrome: {
@@ -273,6 +288,47 @@ describe('mirror', () => {
         const mirrored = mirrorSupport('edge', support);
         assert.deepEqual(mirrored, { version_added: false });
       });
+
+      it('link with Chrome in hash', () => {
+        const support = {
+          chrome: {
+            version_added: '35',
+            notes:
+              '[Non-standard exceptions in Chrome](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome)',
+          },
+        };
+
+        const mirrored = mirrorSupport('chrome_android', support);
+        assert.deepEqual(mirrored, {
+          version_added: '35',
+          notes:
+            '[Non-standard exceptions in Chrome Android](https://developer.mozilla.org/docs/Web/API/AudioContext/AudioContext#Non-standard_exceptions_in_Chrome)',
+        });
+      });
+    });
+
+    describe('ranges are preserved', () => {
+      it('direct', () => {
+        const support = {
+          chrome: {
+            version_added: '≤80',
+          },
+        };
+
+        const mirrored = mirrorSupport('edge', support);
+        assert.deepEqual(mirrored, { version_added: '≤80' });
+      });
+
+      it('range is before first version of downstream browser', () => {
+        const support = {
+          chrome: {
+            version_added: '≤24',
+          },
+        };
+
+        const mirrored = mirrorSupport('edge', support);
+        assert.deepEqual(mirrored, { version_added: '79' });
+      });
     });
   });
 });
diff --git a/scripts/build/mirror.ts b/scripts/build/mirror.ts
index f6f95893890eef..66549d78509565 100644
--- a/scripts/build/mirror.ts
+++ b/scripts/build/mirror.ts
@@ -89,24 +89,33 @@ export const getMatchingBrowserVersion = (
     );
   }
 
+  let previousReleaseEngine;
+
   for (const r of releaseKeys) {
     const release = browserData.releases[r];
-    if (
+
+    // Add a range delimiter if there were previous releases of the downstream browser that used the same engine before this one (ex. after Edge 79)
+    const rangeDelimiter =
+      range && previousReleaseEngine == sourceRelease.engine;
+
+    // Handle mirroring for Chromium forks when upstream version is pre-Blink
+    const isChromeWebKitToBlink =
       ['chrome', 'chrome_android'].includes(browserData.upstream) &&
       targetBrowser !== 'chrome_android' &&
       release.engine == 'Blink' &&
-      sourceRelease.engine == 'WebKit'
-    ) {
-      // Handle mirroring for Chromium forks when upstream version is pre-Blink
-      return range ? `≤${r}` : r;
-    } else if (
+      sourceRelease.engine == 'WebKit';
+
+    const isMatchingVersion =
       release.engine == sourceRelease.engine &&
       release.engine_version &&
       sourceRelease.engine_version &&
-      compare(release.engine_version, sourceRelease.engine_version, '>=')
-    ) {
-      return r;
+      compare(release.engine_version, sourceRelease.engine_version, '>=');
+
+    if (isChromeWebKitToBlink || isMatchingVersion) {
+      return rangeDelimiter ? `≤${r}` : r;
     }
+
+    previousReleaseEngine = release.engine;
   }
 
   return false;
@@ -168,6 +177,7 @@ const copyStatement = (
  */
 export const bumpSupport = (
   sourceData: SupportStatement,
+  sourceBrowser: BrowserName,
   destination: BrowserName,
 ): SupportStatement => {
   if (Array.isArray(sourceData)) {
@@ -176,7 +186,14 @@ export const bumpSupport = (
     // version_added (enforced by the lint) so there can be no notes or similar
     // to preserve from such statements.
     const newData = sourceData
-      .map((data) => bumpSupport(data, destination) as SimpleSupportStatement)
+      .map(
+        (data) =>
+          bumpSupport(
+            data,
+            sourceBrowser,
+            destination,
+          ) as SimpleSupportStatement,
+      )
       .filter((item) => item.version_added);
 
     switch (newData.length) {
@@ -191,17 +208,13 @@ export const bumpSupport = (
     }
   }
 
-  let notesRepl: [RegExp, string] | undefined;
-  if (destination === 'edge') {
-    notesRepl = [/(Google )?Chrome(?!OS)/g, 'Edge'];
-  } else if (destination.includes('opera')) {
-    notesRepl = [/(Google )?Chrome(?!OS)/g, 'Opera'];
-  } else if (destination === 'samsunginternet_android') {
-    notesRepl = [/(Google )?Chrome(?!OS)/g, 'Samsung Internet'];
-  }
-
   const newData: SimpleSupportStatement = copyStatement(sourceData);
 
+  if (!browsers[destination].accepts_flags && newData.flags) {
+    // Remove flag data if the target browser doesn't accept flags
+    return { version_added: false };
+  }
+
   if (typeof sourceData.version_added === 'string') {
     newData.version_added = getMatchingBrowserVersion(
       destination,
@@ -209,6 +222,11 @@ export const bumpSupport = (
     );
   }
 
+  if (newData.version_added === false && sourceData.version_added !== false) {
+    // If the feature is added in an upstream version newer than available in the downstream browser, don't copy notes, etc.
+    return { version_added: false };
+  }
+
   if (
     sourceData.version_removed &&
     typeof sourceData.version_removed === 'string'
@@ -219,11 +237,20 @@ export const bumpSupport = (
     );
   }
 
-  if (notesRepl && sourceData.notes) {
+  if (newData.version_added === newData.version_removed) {
+    // If version_added and version_removed are the same, feature is unsupported
+    return { version_added: false };
+  }
+
+  if (sourceData.notes) {
+    const sourceBrowserName =
+      sourceBrowser === 'chrome'
+        ? '(Google )?Chrome'
+        : `(${browsers[sourceBrowser].name})`;
     const newNotes = updateNotes(
       sourceData.notes,
-      notesRepl[0],
-      notesRepl[1],
+      new RegExp(`\\b${sourceBrowserName}\\b`, 'g'),
+      browsers[destination].name,
       (v: string) => getMatchingBrowserVersion(destination, v),
     );
     if (newNotes) {
@@ -231,16 +258,6 @@ export const bumpSupport = (
     }
   }
 
-  if (!browsers[destination].accepts_flags && newData.flags) {
-    // Remove flag data if the target browser doesn't accept flags
-    return { version_added: false };
-  }
-
-  if (newData.version_added === newData.version_removed) {
-    // If version_added and version_removed are the same, feature is unsupported
-    return { version_added: false };
-  }
-
   return newData;
 };
 
@@ -274,7 +291,7 @@ const mirrorSupport = (
     upstreamData = mirrorSupport(upstream, data);
   }
 
-  return bumpSupport(upstreamData, destination);
+  return bumpSupport(upstreamData, upstream, destination);
 };
 
 export default mirrorSupport;
diff --git a/scripts/diff-features.ts b/scripts/diff-features.ts
index bfa6bb9f9b8fb0..e6b3f1e446877f 100644
--- a/scripts/diff-features.ts
+++ b/scripts/diff-features.ts
@@ -1,12 +1,26 @@
 /* This file is a part of @mdn/browser-compat-data
  * See LICENSE file for more information. */
 
-import { execSync } from 'node:child_process';
+import { exec, execSync } from 'node:child_process';
 import fs from 'node:fs';
+import { promisify } from 'node:util';
+import path from 'node:path';
 
 import esMain from 'es-main';
 import yargs from 'yargs';
 import { hideBin } from 'yargs/helpers';
+import { temporaryDirectoryTask } from 'tempy';
+
+/**
+ * Executes a command asynchronously.
+ * @param command The command to execute asynchronously.
+ * @returns The output of the command.
+ */
+const execAsync = async (command: string): Promise<string> => {
+  const result = await promisify(exec)(command, { encoding: 'utf-8' });
+
+  return result.stdout.trim();
+};
 
 /**
  * Compare two references and print diff as Markdown or JSON
@@ -16,14 +30,14 @@ import { hideBin } from 'yargs/helpers';
  * @param opts.format Format to export data as (either 'markdown' or 'json', default 'json')
  * @param opts.github Whether to obtain artifacts from GitHub
  */
-const main = (opts: {
+const main = async (opts: {
   ref1: string | undefined;
   ref2: string | undefined;
   format?: string;
   github?: boolean;
-}): void => {
+}): Promise<void> => {
   const { ref1, ref2, format, github } = opts;
-  const results = diff({ ref1, ref2, github });
+  const results = await diff({ ref1, ref2, github });
 
   if (format === 'markdown') {
     printMarkdown(results.added, results.removed);
@@ -41,12 +55,12 @@ const main = (opts: {
  * @param opts.quiet If true, don't log to console
  * @returns Diff between two refs
  */
-const diff = (opts: {
+const diff = async (opts: {
   ref1?: string;
   ref2?: string;
   github?: boolean;
   quiet?: boolean;
-}): { added: string[]; removed: string[] } => {
+}): Promise<{ added: string[]; removed: string[] }> => {
   const { ref1, ref2, github, quiet } = opts;
   let refA, refB;
 
@@ -64,8 +78,8 @@ const diff = (opts: {
     refB = `${ref1}`;
   }
 
-  const aSide = enumerate(refA, github === false, quiet);
-  const bSide = enumerate(refB, github === false, quiet);
+  const aSide = await enumerate(refA, github === false, quiet);
+  const bSide = await enumerate(refB, github === false, quiet);
 
   return {
     added: [...bSide].filter((feature) => !aSide.has(feature)),
@@ -80,14 +94,14 @@ const diff = (opts: {
  * @param quiet If true, don't log to console
  * @returns Feature list from reference
  */
-const enumerate = (
+const enumerate = async (
   ref: string,
   skipGithub: boolean,
   quiet = false,
-): Set<string> => {
+): Promise<Set<string>> => {
   if (!skipGithub) {
     try {
-      return new Set(getEnumerationFromGithub(ref));
+      return new Set(await getEnumerationFromGithub(ref));
     } catch (e) {
       if (!quiet) {
         console.error(
@@ -105,50 +119,28 @@ const enumerate = (
  * @param ref Reference to obtain features for
  * @returns Feature list from reference
  */
-const getEnumerationFromGithub = (ref: string): string[] => {
+const getEnumerationFromGithub = async (ref: string): Promise<string[]> => {
   const ENUMERATE_WORKFLOW = '15595228';
   const ENUMERATE_WORKFLOW_ARTIFACT = 'enumerate-features';
   const ENUMERATE_WORKFLOW_FILE = 'features.json';
 
-  /**
-   * Unlinks the workflow file
-   */
-  const unlinkFile = () => {
-    try {
-      fs.unlinkSync(ENUMERATE_WORKFLOW_FILE);
-    } catch (err: any) {
-      if (err.code == 'ENOENT') {
-        return;
-      }
-      throw err;
-    }
-  };
-
-  const hash = execSync(`git rev-parse ${ref}`, {
-    encoding: 'utf-8',
-  }).trim();
-  const workflowRun = execSync(
-    `gh api /repos/:owner/:repo/actions/workflows/${ENUMERATE_WORKFLOW}/runs?per_page=100 --jq '[.workflow_runs[] | select(.head_sha=="${hash}") | .id] | first'`,
-    {
-      encoding: 'utf-8',
-    },
-  ).trim();
+  const hash = await execAsync(`git rev-parse ${ref}`);
+  const workflowRun = await execAsync(
+    `gh api /repos/:owner/:repo/actions/workflows/${ENUMERATE_WORKFLOW}/runs\\?head_sha=${hash}\\&per_page=1 --jq '[.workflow_runs[] | select(.head_sha=="${hash}") | .id] | first'`,
+  );
 
   if (!workflowRun) {
     throw Error('No workflow run found for commit.');
   }
 
-  try {
-    unlinkFile();
-    execSync(
-      `gh run download ${workflowRun} -n ${ENUMERATE_WORKFLOW_ARTIFACT}`,
-    );
-    return JSON.parse(
-      fs.readFileSync(ENUMERATE_WORKFLOW_FILE, { encoding: 'utf-8' }),
+  return await temporaryDirectoryTask(async (tempdir) => {
+    await execAsync(
+      `gh run download ${workflowRun} -n ${ENUMERATE_WORKFLOW_ARTIFACT} --dir ${tempdir}`,
     );
-  } finally {
-    unlinkFile();
-  }
+    const file = path.join(tempdir, ENUMERATE_WORKFLOW_FILE);
+
+    return JSON.parse(fs.readFileSync(file, { encoding: 'utf-8' }));
+  });
 };
 
 /**
@@ -249,7 +241,7 @@ if (esMain(import.meta)) {
     },
   );
 
-  main(argv as any);
+  await main(argv as any);
 }
 
 export default diff;
diff --git a/scripts/generate-types.ts b/scripts/generate-types.ts
index 16c1fe34932071..ca2c98782f4deb 100644
--- a/scripts/generate-types.ts
+++ b/scripts/generate-types.ts
@@ -167,7 +167,10 @@ const compile = async (
     generateCompatDataTypes(),
   ].join('\n\n');
   await fs.writeFile(destination, ts);
-  execSync('tsc ../types/types.d.ts', { cwd: dirname, stdio: 'inherit' });
+  execSync('tsc --skipLibCheck ../types/types.d.ts', {
+    cwd: dirname,
+    stdio: 'inherit',
+  });
 };
 
 if (esMain(import.meta)) {
diff --git a/scripts/migrations/011-set-webview-ios-to-mirror.ts b/scripts/migrations/011-set-webview-ios-to-mirror.ts
new file mode 100644
index 00000000000000..99400072aece33
--- /dev/null
+++ b/scripts/migrations/011-set-webview-ios-to-mirror.ts
@@ -0,0 +1,107 @@
+/* This file is a part of @mdn/browser-compat-data
+ * See LICENSE file for more information. */
+
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+import esMain from 'es-main';
+
+import { InternalSupportStatement } from '../../types/index.js';
+import { CompatStatement } from '../../types/types.js';
+import { IS_WINDOWS } from '../../lint/utils.js';
+
+const dirname = fileURLToPath(new URL('.', import.meta.url));
+
+/**
+ * Check to see if the key is __compat and set 'webview_ios' to 'mirror'
+ * @param key The key in the object
+ * @param value The value of the key
+ * @returns The new value with 'webview_ios' set to 'mirror'
+ */
+export const doSetWebViewIOSToMirror = (
+  key: string,
+  value: CompatStatement,
+): CompatStatement => {
+  if (key === '__compat') {
+    if (value.support.webview_ios === undefined) {
+      (value.support as InternalSupportStatement).webview_ios = 'mirror';
+    }
+  }
+  return value;
+};
+
+/**
+ * Set '__compat.support.webview_ios' to 'mirror' within all the data in a
+ * specified file. The function will then automatically write any needed
+ * changes back into the file.
+ * @param filename The filename to perform migration upon
+ */
+export const setWebViewIOSToMirror = (filename: string): void => {
+  let actual = fs.readFileSync(filename, 'utf-8').trim();
+  let expected = JSON.stringify(
+    JSON.parse(actual, doSetWebViewIOSToMirror),
+    null,
+    2,
+  );
+
+  if (IS_WINDOWS) {
+    // prevent false positives from git.core.autocrlf on Windows
+    actual = actual.replace(/\r/g, '');
+    expected = expected.replace(/\r/g, '');
+  }
+
+  if (actual !== expected) {
+    fs.writeFileSync(filename, expected + '\n', 'utf-8');
+  }
+};
+
+/**
+ * Recursively load one or more files and/or directories passed as arguments
+ * and perform setting '__compat.support.webview_ios' to 'mirror' for.
+ * @param files The files to load and perform migration upon
+ */
+const load = (...files: string[]): void => {
+  for (let file of files) {
+    if (file.indexOf(dirname) !== 0) {
+      file = path.resolve(dirname, '..', '..', file);
+    }
+
+    if (!fs.existsSync(file)) {
+      continue; // Ignore non-existent files
+    }
+
+    if (fs.statSync(file).isFile()) {
+      if (path.extname(file) === '.json') {
+        setWebViewIOSToMirror(file);
+      }
+
+      continue;
+    }
+
+    const subFiles = fs
+      .readdirSync(file)
+      .map((subfile) => path.join(file, subfile));
+
+    load(...subFiles);
+  }
+};
+
+if (esMain(import.meta)) {
+  if (process.argv[2]) {
+    load(process.argv[2]);
+  } else {
+    load(
+      'api',
+      'css',
+      'html',
+      'http',
+      'svg',
+      'javascript',
+      'mathml',
+      'test',
+      'webassembly',
+      'webdriver',
+    );
+  }
+}
diff --git a/scripts/migrations/012-descriptions-to-md.ts b/scripts/migrations/012-descriptions-to-md.ts
new file mode 100644
index 00000000000000..4c314722d2fb64
--- /dev/null
+++ b/scripts/migrations/012-descriptions-to-md.ts
@@ -0,0 +1,106 @@
+/* This file is a part of @mdn/browser-compat-data
+ * See LICENSE file for more information. */
+
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+import esMain from 'es-main';
+
+import { CompatStatement } from '../../types/types.js';
+import { IS_WINDOWS } from '../../lint/utils.js';
+
+const dirname = fileURLToPath(new URL('.', import.meta.url));
+
+/**
+ * Check to see if the key is __compat and set 'webview_ios' to 'mirror'
+ * @param key The key in the object
+ * @param value The value of the key
+ * @returns The new value with 'webview_ios' set to 'mirror'
+ */
+export const doDescriptionsToMarkdown = (
+  key: string,
+  value: CompatStatement,
+): CompatStatement => {
+  if (key === '__compat') {
+    if (value.description) {
+      value.description = value.description.replace(/<\/?code>/g, '`');
+    }
+  }
+  return value;
+};
+
+/**
+ * Set '__compat.support.webview_ios' to 'mirror' within all the data in a
+ * specified file. The function will then automatically write any needed
+ * changes back into the file.
+ * @param filename The filename to perform migration upon
+ */
+export const descriptionsToMarkdown = (filename: string): void => {
+  let actual = fs.readFileSync(filename, 'utf-8').trim();
+  let expected = JSON.stringify(
+    JSON.parse(actual, doDescriptionsToMarkdown),
+    null,
+    2,
+  );
+
+  if (IS_WINDOWS) {
+    // prevent false positives from git.core.autocrlf on Windows
+    actual = actual.replace(/\r/g, '');
+    expected = expected.replace(/\r/g, '');
+  }
+
+  if (actual !== expected) {
+    fs.writeFileSync(filename, expected + '\n', 'utf-8');
+  }
+};
+
+/**
+ * Recursively load one or more files and/or directories passed as arguments
+ * and perform setting '__compat.support.webview_ios' to 'mirror' for.
+ * @param files The files to load and perform migration upon
+ */
+const load = (...files: string[]): void => {
+  for (let file of files) {
+    if (file.indexOf(dirname) !== 0) {
+      file = path.resolve(dirname, '..', '..', file);
+    }
+
+    if (!fs.existsSync(file)) {
+      continue; // Ignore non-existent files
+    }
+
+    if (fs.statSync(file).isFile()) {
+      if (path.extname(file) === '.json') {
+        descriptionsToMarkdown(file);
+      }
+
+      continue;
+    }
+
+    const subFiles = fs
+      .readdirSync(file)
+      .map((subfile) => path.join(file, subfile));
+
+    load(...subFiles);
+  }
+};
+
+if (esMain(import.meta)) {
+  if (process.argv[2]) {
+    load(process.argv[2]);
+  } else {
+    load(
+      'api',
+      'css',
+      'html',
+      'http',
+      'svg',
+      'javascript',
+      'mathml',
+      'test',
+      'webassembly',
+      'webdriver',
+    );
+  }
+}
diff --git a/scripts/release/changes.ts b/scripts/release/changes.ts
index c4c100213afcb0..5c6a854db6d8cd 100644
--- a/scripts/release/changes.ts
+++ b/scripts/release/changes.ts
@@ -72,13 +72,13 @@ const pullsFromGitHub = (fromDate: string): FeatureChange[] =>
  * @param pull The pull request to test
  * @returns The changes from the pull request
  */
-const getDiff = (
+const getDiff = async (
   pull: FeatureChange,
-): { added: string[]; removed: string[] } => {
+): Promise<{ added: string[]; removed: string[] }> => {
   let diff;
 
   try {
-    diff = diffFeatures({ ref1: pull.mergeCommit, quiet: true });
+    diff = await diffFeatures({ ref1: pull.mergeCommit, quiet: true });
   } catch (e) {
     throw new Error(
       chalk`{red ${e}}\n {yellow (Failed to diff features for #${pull.number}, skipping)}`,
@@ -123,27 +123,29 @@ export const getChanges = async (date: string): Promise<Changes> => {
 
   progressBar.start(pulls.length, 0);
 
-  for (const pull of pulls) {
-    const diff = getDiff(pull);
-
-    changes.added.push(
-      ...diff.added.map((feature) => ({
-        number: pull.number,
-        url: pull.url,
-        feature,
-      })),
-    );
-
-    changes.removed.push(
-      ...diff.removed.map((feature) => ({
-        number: pull.number,
-        url: pull.url,
-        feature,
-      })),
-    );
-
-    progressBar.increment();
-  }
+  await Promise.all(
+    pulls.map(async (pull) => {
+      const diff = await getDiff(pull);
+
+      changes.added.push(
+        ...diff.added.map((feature) => ({
+          number: pull.number,
+          url: pull.url,
+          feature,
+        })),
+      );
+
+      changes.removed.push(
+        ...diff.removed.map((feature) => ({
+          number: pull.number,
+          url: pull.url,
+          feature,
+        })),
+      );
+
+      progressBar.increment();
+    }),
+  );
 
   progressBar.stop();
   console.log('\n');
diff --git a/scripts/release/index.ts b/scripts/release/index.ts
index 7aaa30b13a26a4..cb6123301f053a 100644
--- a/scripts/release/index.ts
+++ b/scripts/release/index.ts
@@ -3,6 +3,9 @@
 
 import chalk from 'chalk-template';
 import esMain from 'es-main';
+import yargs from 'yargs';
+import { hideBin } from 'yargs/helpers';
+import { temporaryWriteTask } from 'tempy';
 
 import { getSemverBumpPulls } from './semver-pulls.js';
 import { getStats } from './stats.js';
@@ -15,16 +18,33 @@ import {
   getLatestTag,
   getRefDate,
   keypress,
+  spawn,
+  fetchMain,
 } from './utils.js';
 
 /**
  * Perform the commit and submit a pull request
- * @param thisVersion The current version number
+ * @param message The commit message
  * @param wait Whether to wait for user to update the release notes (used when semver bump is minor or major)
+ * @param options Commit options
+ * @param options.branch the branch to commit to
+ * @param options.pr PR options
+ * @param options.pr.title Title of the PR
+ * @param options.pr.body Body of the PR
  */
 const commitAndPR = async (
-  thisVersion: string,
+  message: string,
   wait: boolean,
+  {
+    branch,
+    pr,
+  }: {
+    branch: string;
+    pr: {
+      title: string;
+      body: string;
+    };
+  },
 ): Promise<void> => {
   if (wait) {
     console.log('');
@@ -36,24 +56,57 @@ const commitAndPR = async (
     console.log('');
   }
 
+  console.log(chalk`{blue Preparing ${branch} branch...}`);
   exec(`
-    git switch main
-    git switch -c release
+    git stash
+    git switch -C ${branch} origin/main
+    git stash pop
     git add package.json package-lock.json RELEASE_NOTES.md
-    git commit -m "Release ${thisVersion}" -m "" -m "This release was generated by the project's release script."
-    git push --set-upstream origin release
-    gh pr create --fill
-    git switch main
-    git branch -d release
+  `);
+
+  console.log(chalk`{blue Committing changes...}`);
+  await temporaryWriteTask(message, (commitFile) =>
+    exec(`git commit --file ${commitFile}`),
+  );
+
+  console.log(chalk`{blue Pushing ${branch} branch...}`);
+  exec(`git push --force --set-upstream origin ${branch}`);
+
+  console.log(chalk`{blue Creating/editing pull request...}`);
+  await temporaryWriteTask(pr.body, (bodyFile) => {
+    const commonArgs = ['--title', pr.title, '--body-file', bodyFile];
+    try {
+      const stdout = spawn('gh', ['pr', 'create', '--draft', ...commonArgs]);
+      console.log(stdout);
+    } catch (e) {
+      const stdout = spawn('gh', ['pr', 'edit', ...commonArgs]);
+      console.log(stdout);
+    }
+  });
+
+  exec(`
+    git switch -
+    git branch -d ${branch}
   `);
 };
 
 /**
  * Perform the release
+ * @param options The release options
+ * @param options.dryRun Whether to simulate the release locally
  */
-const main = async () => {
+const main = async ({ dryRun }: { dryRun: boolean }) => {
+  if (dryRun) {
+    console.log(chalk`{green Simulating release...}`);
+  }
+
   requireGitHubCLI();
-  requireWriteAccess();
+  if (!dryRun) {
+    requireWriteAccess();
+  }
+
+  console.log(chalk`{blue Fetching main branch...}`);
+  fetchMain();
 
   console.log(chalk`{blue Getting last version...}`);
   const lastVersion = getLatestTag();
@@ -85,16 +138,38 @@ const main = async () => {
   console.log(chalk`{blue Getting lists of added/removed features...}`);
   const changes = await getChanges(lastVersionDate);
 
-  console.log(chalk`{blue Applying changelog...}`);
+  console.log(chalk`{blue Updating release notes...}`);
   const notes = getNotes(thisVersion, changes, stats, versionBump);
   await addNotes(notes, versionBump, lastVersion);
 
-  console.log(chalk`{blue Creating pull request...}`);
-  await commitAndPR(thisVersion, versionBump !== 'patch');
+  if (!dryRun) {
+    const title = `Release ${thisVersion}`;
+    const body = `(This release was generated by the project's release script.)\n\n${notes}`;
+    await commitAndPR(
+      title,
+      !process.env.GITHUB_ACTIONS && versionBump !== 'patch',
+      {
+        branch: 'release',
+        pr: { title, body },
+      },
+    );
+  }
 
   console.log(chalk`{blue {bold Done!}}`);
 };
 
 if (esMain(import.meta)) {
-  await main();
+  const { argv }: { argv } = yargs(hideBin(process.argv)).command(
+    '$0',
+    'Prepares a release by determining changes since the last release, and creating/updating a release PR',
+    (yargs) =>
+      yargs.option('dry-run', {
+        alias: 'n',
+        describe: "Don't commit, push or PR",
+        type: 'boolean',
+        default: false,
+      }),
+  );
+
+  await main({ dryRun: argv.dryRun });
 }
diff --git a/scripts/release/semver-pulls.ts b/scripts/release/semver-pulls.ts
index a7271f55816a90..5b79f59ab45968 100644
--- a/scripts/release/semver-pulls.ts
+++ b/scripts/release/semver-pulls.ts
@@ -4,8 +4,8 @@
 import { queryPRs } from './utils.js';
 
 const releaseNotesLabels = {
-  major: 'semver-major-bump 🚨',
-  minor: 'semver-minor-bump ➕',
+  major: 'semver-major-bump',
+  minor: 'semver-minor-bump',
 };
 
 /**
diff --git a/scripts/release/stats.ts b/scripts/release/stats.ts
index c3426d951bf3b4..fec529528bfd33 100644
--- a/scripts/release/stats.ts
+++ b/scripts/release/stats.ts
@@ -54,7 +54,7 @@ const contributors = (): number => {
  */
 const stats = (start: string): ChangeStats => {
   // Get just the diff stats summary
-  const diff = exec(`git diff --shortstat ${start}...main`);
+  const diff = exec(`git diff --shortstat ${start}...origin/main`);
   if (diff === '') {
     console.error(chalk`{red No changes for which to generate statistics.}`);
     process.exit(1);
@@ -73,7 +73,7 @@ const stats = (start: string): ChangeStats => {
   const { changed, insertions, deletions } = match.groups as any;
 
   // Get the number of commits
-  const commits = exec(`git rev-list --count ${start}...main`);
+  const commits = exec(`git rev-list --count ${start}...origin/main`);
 
   return {
     commits: Number(commits),
diff --git a/scripts/release/utils.ts b/scripts/release/utils.ts
index 4e2cce6705355f..9a337369538ed3 100644
--- a/scripts/release/utils.ts
+++ b/scripts/release/utils.ts
@@ -1,7 +1,12 @@
 /* This file is a part of @mdn/browser-compat-data
  * See LICENSE file for more information. */
 
-import { execSync } from 'node:child_process';
+import {
+  execSync,
+  ExecSyncOptionsWithStringEncoding,
+  spawnSync,
+  SpawnSyncOptionsWithStringEncoding,
+} from 'node:child_process';
 
 /**
  * Execute a command
@@ -9,8 +14,37 @@ import { execSync } from 'node:child_process';
  * @param opts The options to pass to execSync
  * @returns The output from the command
  */
-export const exec = (command: string, opts?: any): string =>
-  execSync(command, { encoding: 'utf8', ...opts }).trim();
+export const exec = (
+  command: string,
+  opts?: ExecSyncOptionsWithStringEncoding,
+): string => execSync(command, { encoding: 'utf8', ...opts }).trim();
+
+/**
+ * Execute a command
+ * @param command The command to execute
+ * @param args The arguments to pass
+ * @param opts The options to pass to spawnSync
+ * @returns The output from the command
+ */
+export const spawn = (
+  command: string,
+  args: readonly string[],
+  opts?: SpawnSyncOptionsWithStringEncoding,
+): string => {
+  const result = spawnSync(command, args, { encoding: 'utf8', ...opts });
+
+  if (result.error) {
+    throw result.error;
+  }
+
+  if (result.status !== 0) {
+    throw new Error(
+      `The command '${command}' returned non-zero exit status ${result.status}: ${result.stderr}`,
+    );
+  }
+
+  return result.stdout.trim();
+};
 
 /**
  * Check for GitHub CLI and exit the program if it's not existent
@@ -70,6 +104,13 @@ export const queryPRs = (queryArgs: any): any => {
   return JSON.parse(exec(command));
 };
 
+/**
+ * Ensures main is fetched.
+ */
+export const fetchMain = (): void => {
+  exec('git fetch origin main');
+};
+
 /**
  * Get the latest Git tag
  * @returns The latest Git tag
diff --git a/scripts/traverse.test.ts b/scripts/traverse.test.ts
index d2b18497ff4fa6..c372777df7dc06 100644
--- a/scripts/traverse.test.ts
+++ b/scripts/traverse.test.ts
@@ -3,19 +3,24 @@
 
 import assert from 'node:assert/strict';
 
-import { BrowserName } from '../types/types.js';
-
 import { iterateFeatures } from './traverse.js';
 
 describe('iterateFeatures', () => {
-  it('should yield correct identifiers for given object', () => {
-    const obj = {
+  let obj: any;
+  let options: any;
+  beforeEach(() => {
+    obj = {
       feature1: {
         __compat: {
           support: {
             chrome: { version_added: '1.0' },
             firefox: { version_added: '1.5' },
           },
+          status: {
+            experimental: false,
+            standard_track: true,
+            deprecated: false,
+          },
         },
       },
       feature2: {
@@ -24,20 +29,148 @@ describe('iterateFeatures', () => {
             chrome: { version_added: '2.0' },
             firefox: { version_added: null },
           },
+          status: {
+            experimental: false,
+            standard_track: true,
+            deprecated: false,
+          },
         },
       },
     };
+    options = {
+      browsers: ['chrome', 'firefox'],
+      values: ['1.0', 'null'],
+      depth: 2,
+      tag: '',
+      identifier: '',
+      status: {
+        deprecated: undefined,
+        standard_track: undefined,
+        experimental: undefined,
+      },
+    };
+  });
 
-    const browsers: BrowserName[] = ['chrome', 'firefox'];
-    const values = ['1.0', 'null'];
-    const depth = 2;
-    const tag = '';
-    const identifier = '';
-
+  it('should yield correct identifiers for given object', () => {
     const result = Array.from(
-      iterateFeatures(obj, browsers, values, depth, tag, identifier),
+      iterateFeatures(
+        obj,
+        options.browsers,
+        options.values,
+        options.depth,
+        options.tag,
+        options.identifier,
+      ),
     );
 
     assert.deepEqual(result, ['feature1', 'feature2']);
   });
+
+  it('should filter out deprecated', () => {
+    options.status.deprecated = false;
+    obj.feature2.__compat.status.deprecated = true;
+    const result = Array.from(
+      iterateFeatures(
+        obj,
+        options.browsers,
+        options.values,
+        options.depth,
+        options.tag,
+        options.identifier,
+        options.status,
+      ),
+    );
+
+    assert.deepEqual(result, ['feature1']);
+  });
+
+  it('should filter out non-deprecated', () => {
+    options.status.deprecated = true;
+    obj.feature2.__compat.status.deprecated = true;
+    const result = Array.from(
+      iterateFeatures(
+        obj,
+        options.browsers,
+        options.values,
+        options.depth,
+        options.tag,
+        options.identifier,
+        options.status,
+      ),
+    );
+
+    assert.deepEqual(result, ['feature2']);
+  });
+
+  it('should filter out non-experimental', () => {
+    obj.feature2.__compat.status.experimental = true;
+    options.status.experimental = true;
+    const result = Array.from(
+      iterateFeatures(
+        obj,
+        options.browsers,
+        options.values,
+        options.depth,
+        options.tag,
+        options.identifier,
+        options.status,
+      ),
+    );
+
+    assert.deepEqual(result, ['feature2']);
+  });
+
+  it('should filter out experimental', () => {
+    obj.feature2.__compat.status.experimental = true;
+    options.status.experimental = false;
+    const result = Array.from(
+      iterateFeatures(
+        obj,
+        options.browsers,
+        options.values,
+        options.depth,
+        options.tag,
+        options.identifier,
+        options.status,
+      ),
+    );
+
+    assert.deepEqual(result, ['feature1']);
+  });
+
+  it('should filter out non-standard track', () => {
+    obj.feature1.__compat.status.standard_track = false;
+    options.status.standard_track = true;
+    const result = Array.from(
+      iterateFeatures(
+        obj,
+        options.browsers,
+        options.values,
+        options.depth,
+        options.tag,
+        options.identifier,
+        options.status,
+      ),
+    );
+
+    assert.deepEqual(result, ['feature2']);
+  });
+
+  it('should filter out standard track', () => {
+    obj.feature1.__compat.status.standard_track = false;
+    options.status.standard_track = false;
+    const result = Array.from(
+      iterateFeatures(
+        obj,
+        options.browsers,
+        options.values,
+        options.depth,
+        options.tag,
+        options.identifier,
+        options.status,
+      ),
+    );
+
+    assert.deepEqual(result, ['feature1']);
+  });
 });
diff --git a/scripts/traverse.ts b/scripts/traverse.ts
index b01cb4f8e67f6b..0d4062d5ac39e9 100644
--- a/scripts/traverse.ts
+++ b/scripts/traverse.ts
@@ -9,6 +9,12 @@ import { BrowserName, Identifier } from '../types/types.js';
 import { InternalSupportStatement } from '../types/index.js';
 import bcd, { dataFolders } from '../index.js';
 
+interface StatusFilters {
+  deprecated: boolean | undefined;
+  standard_track: boolean | undefined;
+  experimental: boolean | undefined;
+}
+
 /**
  * Traverse all of the features within a specified object and find all features that have one of the specified values
  * @param obj The compat data to traverse through
@@ -17,6 +23,7 @@ import bcd, { dataFolders } from '../index.js';
  * @param depth The depth to traverse
  * @param tag The tag to filter results with
  * @param identifier The identifier of the current object
+ * @param status Whether to filter by status flags
  * @yields {string} The feature identifier
  */
 export function* iterateFeatures(
@@ -26,15 +33,32 @@ export function* iterateFeatures(
   depth: number,
   tag: string,
   identifier: string,
+  status: StatusFilters | null = null,
 ): IterableIterator<string> {
+  const { deprecated, standard_track, experimental } = status ?? {};
   depth--;
   if (depth >= 0) {
     for (const i in obj) {
       if (!!obj[i] && typeof obj[i] == 'object' && i !== '__compat') {
         if (obj[i].__compat) {
+          if (typeof deprecated === 'boolean') {
+            if (deprecated !== obj[i].__compat.status?.deprecated) {
+              continue;
+            }
+          }
+          if (typeof standard_track === 'boolean') {
+            if (standard_track !== obj[i].__compat.status?.standard_track) {
+              continue;
+            }
+          }
+          if (typeof experimental === 'boolean') {
+            if (experimental !== obj[i].__compat.status?.experimental) {
+              continue;
+            }
+          }
           if (tag) {
             const tags = obj[i].__compat?.tags;
-            if (tags && tags.includes(tag)) {
+            if ((tags && tags.includes(tag)) || (!tags && tag == 'false')) {
               yield `${identifier}${i}`;
             }
           } else {
@@ -78,6 +102,13 @@ export function* iterateFeatures(
                   if (values.length == 0 || values.includes('null')) {
                     yield `${identifier}${i}`;
                   }
+                } else if (values.includes('≤') || values.includes('ranged')) {
+                  if (
+                    String(browserData[range].version_added).startsWith('≤') ||
+                    String(browserData[range].version_removed).startsWith('≤')
+                  ) {
+                    yield `${identifier}${i}`;
+                  }
                 } else if (
                   values.length == 0 ||
                   values.includes(String(browserData[range].version_added)) ||
@@ -103,6 +134,7 @@ export function* iterateFeatures(
           depth,
           tag,
           identifier + i + '.',
+          status,
         );
       }
     }
@@ -117,6 +149,7 @@ export function* iterateFeatures(
  * @param depth The depth to traverse
  * @param tag The tag to filter results with
  * @param identifier The identifier of the current object
+ * @param status Whether to filter by status flags
  * @returns An array of the features
  */
 const traverseFeatures = (
@@ -126,9 +159,10 @@ const traverseFeatures = (
   depth: number,
   tag: string,
   identifier: string,
+  status: StatusFilters,
 ): string[] => {
   const features = Array.from(
-    iterateFeatures(obj, browsers, values, depth, tag, identifier),
+    iterateFeatures(obj, browsers, values, depth, tag, identifier, status),
   );
 
   return features.filter((item, pos) => features.indexOf(item) == pos);
@@ -141,6 +175,7 @@ const traverseFeatures = (
  * @param values The version values to traverse for
  * @param depth The depth to traverse
  * @param tag The tag to filter results with
+ * @param status Whether to filter by status flags
  * @returns The list of features
  */
 const main = (
@@ -151,6 +186,7 @@ const main = (
   values = ['null', 'true'],
   depth = 100,
   tag = '',
+  status = {} as StatusFilters,
 ): string[] => {
   const features: string[] = [];
 
@@ -163,6 +199,7 @@ const main = (
         depth,
         tag,
         folders[folder] + '.',
+        status,
       ),
     );
   }
@@ -194,7 +231,7 @@ if (esMain(import.meta)) {
         .option('filter', {
           alias: 'f',
           describe:
-            'Filter by version value. May repeat. Set to "mirror" for mirrored entries, and "nonmirror" for non-mirrored entries.',
+            'Filter by version value. May repeat. Set to "≤" or "ranged" for ranged values (ex. ≤58), "mirror" for mirrored entries, and "nonmirror" for non-mirrored entries.',
           type: 'array',
           string: true,
           nargs: 1,
@@ -202,7 +239,8 @@ if (esMain(import.meta)) {
         })
         .option('tag', {
           alias: 't',
-          describe: 'Filter by tag value.',
+          describe:
+            'Filter by tag value. Set to `false` to search for features with no tags.',
           type: 'string',
           nargs: 1,
           default: '',
@@ -228,6 +266,27 @@ if (esMain(import.meta)) {
           type: 'boolean',
           default: process.stdout.isTTY,
         })
+        .option('status.deprecated', {
+          alias: 'x',
+          describe:
+            'Filter features by deprecation status. Set to `true` to only show deprecated features or `false` to only show non-deprecated features.',
+          type: 'boolean',
+          default: undefined,
+        })
+        .option('status.standard_track', {
+          alias: 's',
+          describe:
+            'Filter features by standard_track status. Set to `true` to only show standards track features or `false` to only show non-standards track features.',
+          type: 'boolean',
+          default: undefined,
+        })
+        .option('status.experimental', {
+          alias: 'e',
+          describe:
+            'Filter features by experimental status. Set to `true` to only show experimental features or `false` to only show non-experimental features.',
+          type: 'boolean',
+          default: undefined,
+        })
         .example(
           'npm run traverse -- --browser=safari -n',
           'Find all features containing non-real Safari entries',
@@ -247,6 +306,26 @@ if (esMain(import.meta)) {
         .example(
           'npm run traverse -- -t web-features:idle-detection',
           'Find all features tagged with web-features:idle-detection.',
+        )
+        .example(
+          'npm run traverse -- -t false',
+          'Find all features with no tags.',
+        )
+        .example(
+          'npm run traverse -- --status.deprecated',
+          'Find all features that are deprecated.',
+        )
+        .example(
+          'npm run traverse -- --no-status.deprecated',
+          'Omit all features that are deprecated.',
+        )
+        .example(
+          'npm run traverse -- --status.standard_track',
+          'Find all features that are on the standard track.',
+        )
+        .example(
+          'npm run traverse -- --status.experimental',
+          'Find all features that are experimental.',
         );
     },
   );
@@ -259,6 +338,7 @@ if (esMain(import.meta)) {
     filter,
     argv.depth,
     argv.tag,
+    argv.status,
   );
   console.log(features.join('\n'));
   if (argv.showCount) {
diff --git a/scripts/update-browser-releases/chrome.ts b/scripts/update-browser-releases/chrome.ts
index bdbc6c2c3a6823..78fd9fb30f1703 100644
--- a/scripts/update-browser-releases/chrome.ts
+++ b/scripts/update-browser-releases/chrome.ts
@@ -190,7 +190,9 @@ export const updateChromiumReleases = async (options) => {
   // Add a planned version entry
   //
   if (data[options.nightlyBranch]) {
-    const plannedVersion = (data[options.nightlyBranch].version + 1).toString();
+    const plannedVersion = (
+      Number(data[options.nightlyBranch].version) + 1
+    ).toString();
     if (chromeBCD.browsers[options.bcdBrowserName].releases[plannedVersion]) {
       result += updateBrowserEntry(
         chromeBCD,
diff --git a/scripts/update-browser-releases/index.ts b/scripts/update-browser-releases/index.ts
index 9fdd02cfbe1c89..70acd47e9b9d3b 100644
--- a/scripts/update-browser-releases/index.ts
+++ b/scripts/update-browser-releases/index.ts
@@ -85,7 +85,7 @@ const options = {
     browserEngine: 'Blink',
     releaseBranch: 'stable',
     betaBranch: 'beta',
-    nightlyBranch: 'canary',
+    nightlyBranch: 'dev',
     releaseNoteCore: 'stable-channel-update-for-desktop',
     firstRelease: 1,
     skippedReleases: [82], // 82 was skipped during COVID
@@ -98,7 +98,7 @@ const options = {
     browserEngine: 'Blink',
     releaseBranch: 'stable',
     betaBranch: 'beta',
-    nightlyBranch: 'canary',
+    nightlyBranch: 'dev',
     releaseNoteCore: 'chrome-for-android-update',
     firstRelease: 25,
     skippedReleases: [82], // 82 was skipped during COVID
@@ -111,7 +111,7 @@ const options = {
     browserEngine: 'Blink',
     releaseBranch: 'stable',
     betaBranch: 'beta',
-    nightlyBranch: 'canary',
+    nightlyBranch: 'dev',
     releaseNoteCore: 'chrome-for-android-update',
     firstRelease: 37,
     skippedReleases: [82], // 82 was skipped during COVID
@@ -181,6 +181,15 @@ const options = {
       'https://developer.apple.com/tutorials/data/documentation/safari-release-notes.json',
     releaseNoteURLBase: 'https://developer.apple.com',
   },
+  webview_ios: {
+    browserName: 'WKWebView for iOS',
+    bcdFile: './browsers/webview_ios.json',
+    bcdBrowserName: 'webview_ios',
+    skippedReleases: ['12.1', '13.1', '14.1'],
+    releaseNoteJSON:
+      'https://developer.apple.com/tutorials/data/documentation/safari-release-notes.json',
+    releaseNoteURLBase: 'https://developer.apple.com',
+  },
 };
 
 let result = '';
@@ -225,6 +234,11 @@ if (updateSafari && updateMobile) {
   result += (result && add ? '\n' : '') + add;
 }
 
+if (updateSafari && updateMobile) {
+  const add = await updateSafariReleases(options.webview_ios);
+  result += (result && add ? '\n' : '') + add;
+}
+
 if (result) {
   console.log(result);
 }
diff --git a/scripts/update-browser-releases/safari.ts b/scripts/update-browser-releases/safari.ts
index bbbaf5d0362458..3b5cdf56f09d07 100644
--- a/scripts/update-browser-releases/safari.ts
+++ b/scripts/update-browser-releases/safari.ts
@@ -37,7 +37,7 @@ const extractReleaseData = (str): Release | null => {
   }
   return {
     date: new Date(`${result[1]} UTC`).toISOString().substring(0, 10),
-    version: result[2],
+    version: result[2].replace(/\.0$/, ''),
     channel: result[3] ? 'beta' : 'retired',
     engineVersion: result[4].substring(2),
     releaseNote: '',
@@ -86,6 +86,9 @@ export const updateSafariReleases = async (options) => {
         chalk`{yellow Release string from Apple not understandable (${releases[id].abstract[0].text})}`,
       );
       continue;
+    } else if (/^\d+\.\d+\.\d+$/.test(releaseDataEntry.version)) {
+      // Ignore patch version (e.g. "18.0.1").
+      continue;
     }
 
     // Compute release note
diff --git a/svg/elements/a.json b/svg/elements/a.json
index 1e891e880631f3..7e90a28ee31f94 100644
--- a/svg/elements/a.json
+++ b/svg/elements/a.json
@@ -4,7 +4,10 @@
       "a": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/a",
-          "spec_url": "https://svgwg.org/svg2-draft/linking.html#Links",
+          "spec_url": "https://svgwg.org/svg2-draft/linking.html#AElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,10 @@
         },
         "download": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#AElementDownloadAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -63,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -75,6 +84,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/svg2-draft/linking.html#AElementHrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -98,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -109,6 +122,10 @@
         },
         "hreflang": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#AElementHreflangAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -133,7 +150,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,6 +162,7 @@
         },
         "ping": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#AElementPingAttribute",
             "support": {
               "chrome": {
                 "version_added": false
@@ -153,7 +172,7 @@
               "firefox": {
                 "version_added": "61",
                 "partial_implementation": true,
-                "notes": "This property is exposed but has no effect if the <code>browser.send_pings</code> preference is not set to <code>true</code>. See <a href='https://bugzil.la/951104'>bug 951104</a>."
+                "notes": "This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See [bug 951104](https://bugzil.la/951104)."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -167,7 +186,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -178,6 +198,10 @@
         },
         "referrerpolicy": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#AElementReferrerpolicyAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "51"
@@ -201,7 +225,8 @@
               "samsunginternet_android": {
                 "version_added": "7.2"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -212,6 +237,9 @@
           "no-referrer-when-downgrade": {
             "__compat": {
               "description": "no-referrer-when-downgrade",
+              "tags": [
+                "web-features:svg"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -236,7 +264,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -248,6 +277,9 @@
           "origin-when-cross-origin": {
             "__compat": {
               "description": "origin-when-cross-origin",
+              "tags": [
+                "web-features:svg"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -272,7 +304,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -284,6 +317,9 @@
           "unsafe-url": {
             "__compat": {
               "description": "unsafe-url",
+              "tags": [
+                "web-features:svg"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "51"
@@ -308,7 +344,8 @@
                 "samsunginternet_android": {
                   "version_added": "7.2"
                 },
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -320,6 +357,10 @@
         },
         "rel": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#AElementRelAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -344,7 +385,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -357,6 +399,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -384,7 +429,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -397,6 +443,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/target",
             "spec_url": "https://svgwg.org/svg2-draft/linking.html#AElementTargetAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -424,7 +473,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -435,6 +485,10 @@
         },
         "type": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#AElementTypeAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -459,7 +513,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -470,7 +525,7 @@
         },
         "xlink_actuate": {
           "__compat": {
-            "description": "<code>xlink:actuate</code>",
+            "description": "`xlink:actuate`",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -492,7 +547,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -503,7 +559,7 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/xlink:href",
             "spec_url": "https://svgwg.org/svg2-draft/linking.html#XLinkHrefAttribute",
             "support": {
@@ -533,7 +589,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -544,7 +601,8 @@
         },
         "xlink_show": {
           "__compat": {
-            "description": "<code>xlink:show</code>",
+            "description": "`xlink:show`",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/xlink:show",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -566,7 +624,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -577,7 +636,9 @@
         },
         "xlink_title": {
           "__compat": {
-            "description": "<code>xlink:title</code>",
+            "description": "`xlink:title`",
+            "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/xlink:title",
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#XLinkTitleAttribute",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -599,7 +660,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/animate.json b/svg/elements/animate.json
index 92189bf136278a..02e592f0b0fe86 100644
--- a/svg/elements/animate.json
+++ b/svg/elements/animate.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/animate",
           "spec_url": "https://svgwg.org/specs/animations/#AnimateElement",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤79"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "4"
             },
@@ -34,7 +35,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +46,9 @@
         },
         "attributeName": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -65,7 +70,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +82,9 @@
         },
         "attributeType": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -97,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,6 +120,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/dur",
             "spec_url": "https://svgwg.org/specs/animations/#DurAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -131,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,6 +158,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/specs/animations/#FillAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -165,7 +182,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -178,6 +196,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/From",
             "spec_url": "https://svgwg.org/specs/animations/#FromAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -199,7 +220,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -211,14 +233,15 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/specs/animations/#HrefAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "51"
               },
@@ -234,7 +257,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -247,6 +271,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/repeatCount",
             "spec_url": "https://svgwg.org/specs/animations/#RepeatCountAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -268,7 +295,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -281,6 +309,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -306,7 +337,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -317,6 +349,9 @@
         },
         "to": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -338,7 +373,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/animateMotion.json b/svg/elements/animateMotion.json
index cc08b52df337ed..b070368798833f 100644
--- a/svg/elements/animateMotion.json
+++ b/svg/elements/animateMotion.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/animateMotion",
           "spec_url": "https://svgwg.org/specs/animations/#AnimateMotionElement",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "19"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤79"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "4"
             },
@@ -32,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +44,9 @@
         },
         "calcMode": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -63,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +82,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/specs/animations/#FillAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -97,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -109,14 +119,15 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/specs/animations/#HrefAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "51"
               },
@@ -132,7 +143,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -145,6 +157,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/keyPoints",
             "spec_url": "https://svgwg.org/specs/animations/#KeyPointsAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -166,7 +181,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -177,6 +193,9 @@
         },
         "origin": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -198,7 +217,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -209,6 +229,9 @@
         },
         "path": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -230,7 +253,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -241,6 +265,9 @@
         },
         "rotate": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -262,7 +289,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -275,6 +303,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -300,7 +331,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/animateTransform.json b/svg/elements/animateTransform.json
index a95354f704beed..b660bafacfe97b 100644
--- a/svg/elements/animateTransform.json
+++ b/svg/elements/animateTransform.json
@@ -5,14 +5,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/animateTransform",
           "spec_url": "https://svgwg.org/specs/animations/#AnimateTransformElement",
+          "tags": [
+            "web-features:smil-svg-animations"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤79"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "4"
             },
@@ -34,7 +35,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +48,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/by",
             "spec_url": "https://svgwg.org/specs/animations/#ByAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -67,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +86,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/specs/animations/#FillAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -103,7 +112,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,6 +124,9 @@
         },
         "from": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -135,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -147,14 +161,15 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/specs/animations/#HrefAttribute",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "51"
               },
@@ -170,7 +185,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -183,6 +199,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -210,7 +229,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -221,6 +241,9 @@
         },
         "to": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -242,7 +265,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -253,6 +277,9 @@
         },
         "type": {
           "__compat": {
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -274,7 +301,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/circle.json b/svg/elements/circle.json
index db9247c6abd4dd..74c5275355ca1e 100644
--- a/svg/elements/circle.json
+++ b/svg/elements/circle.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/circle",
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#CircleElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "cx": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +84,9 @@
         },
         "cy": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -99,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,6 +124,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingFillPaint",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -133,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -143,8 +159,11 @@
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+              "tags": [
+                "web-features:context-fill-stroke"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "124"
@@ -166,7 +185,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -178,6 +198,9 @@
         },
         "r": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -201,7 +224,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -214,6 +238,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -241,7 +268,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/clipPath.json b/svg/elements/clipPath.json
index 82c04421c87e39..080055b634f207 100644
--- a/svg/elements/clipPath.json
+++ b/svg/elements/clipPath.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/clipPath",
           "spec_url": "https://drafts.fxtf.org/css-masking/#ClipPathElement",
+          "tags": [
+            "web-features:clip-path"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         },
         "clipPathUnits": {
           "__compat": {
+            "tags": [
+              "web-features:clip-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -69,7 +76,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,6 +90,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:clip-path"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -111,7 +122,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/cursor.json b/svg/elements/cursor.json
index fa0c26bcac935b..fef610b5267c49 100644
--- a/svg/elements/cursor.json
+++ b/svg/elements/cursor.json
@@ -31,7 +31,8 @@
             "webview_android": {
               "version_added": "≤37",
               "version_removed": "57"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -67,7 +68,8 @@
               "webview_android": {
                 "version_added": "≤37",
                 "version_removed": "57"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -106,12 +108,13 @@
               "webview_android": {
                 "version_added": "≤37",
                 "version_removed": "57"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": true,
-              "deprecated": false
+              "deprecated": true
             }
           }
         },
@@ -143,7 +146,8 @@
               "webview_android": {
                 "version_added": "≤37",
                 "version_removed": "57"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -154,7 +158,7 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "support": {
               "chrome": {
                 "version_added": "1",
@@ -181,7 +185,8 @@
               "webview_android": {
                 "version_added": "≤37",
                 "version_removed": "57"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -218,7 +223,8 @@
               "webview_android": {
                 "version_added": "≤37",
                 "version_removed": "57"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/defs.json b/svg/elements/defs.json
index 56f1ccac4c3d3a..be42b665346c90 100644
--- a/svg/elements/defs.json
+++ b/svg/elements/defs.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/defs",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#Head",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -75,7 +82,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/desc.json b/svg/elements/desc.json
index acf90bff84881b..bf8dfb314a51b8 100644
--- a/svg/elements/desc.json
+++ b/svg/elements/desc.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/desc",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#DescriptionAndTitleElements",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/svg/elements/ellipse.json b/svg/elements/ellipse.json
index 0550ba242d3af8..a73ab998e2d4f5 100644
--- a/svg/elements/ellipse.json
+++ b/svg/elements/ellipse.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/ellipse",
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#EllipseElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         },
         "cx": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -73,7 +80,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -84,6 +92,9 @@
         },
         "cy": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -113,7 +124,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -126,6 +138,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingFillPaint",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -149,7 +164,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -159,8 +175,11 @@
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+              "tags": [
+                "web-features:context-fill-stroke"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "124"
@@ -184,7 +203,8 @@
                   "version_added": "3"
                 },
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -196,6 +216,9 @@
         },
         "rx": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -225,7 +248,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -236,6 +260,9 @@
         },
         "ry": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -265,7 +292,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -278,6 +306,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -307,7 +338,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feBlend.json b/svg/elements/feBlend.json
index 28995e35709688..58cee421226ed5 100644
--- a/svg/elements/feBlend.json
+++ b/svg/elements/feBlend.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feBlend",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feBlendElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +88,9 @@
         },
         "in2": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -107,7 +118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -120,6 +132,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/mode",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feblend-mode",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -147,7 +162,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feColorMatrix.json b/svg/elements/feColorMatrix.json
index 65ee6386de1aae..a1776bb7d21987 100644
--- a/svg/elements/feColorMatrix.json
+++ b/svg/elements/feColorMatrix.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feColorMatrix",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feColorMatrixElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,6 +42,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -61,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,6 +80,9 @@
         },
         "type": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -95,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -106,6 +118,9 @@
         },
         "values": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -129,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feComponentTransfer.json b/svg/elements/feComponentTransfer.json
index 180353731de79a..d856230e6b3af0 100644
--- a/svg/elements/feComponentTransfer.json
+++ b/svg/elements/feComponentTransfer.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feComponentTransfer",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feComponentTransferElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,6 +42,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -61,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feComposite.json b/svg/elements/feComposite.json
index 574a61cb8eb99c..0b44e263cf9ed5 100644
--- a/svg/elements/feComposite.json
+++ b/svg/elements/feComposite.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feComposite",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feCompositeElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -34,7 +37,8 @@
             "samsunginternet_android": {
               "version_added": "1.5"
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -51,7 +58,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "≤18",
-                "notes": "Before Edge 79, <code>BackgroundImage</code> and <code>BackgroundAlpha</code> were supported."
+                "notes": "Before Edge 79, `BackgroundImage` and `BackgroundAlpha` were supported."
               },
               "firefox": {
                 "version_added": "3"
@@ -70,7 +77,8 @@
               "samsunginternet_android": {
                 "version_added": "1.5"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -81,6 +89,9 @@
         },
         "in2": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -88,7 +99,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "≤18",
-                "notes": "Before Edge 79, <code>BackgroundImage</code> and <code>BackgroundAlpha</code> were supported."
+                "notes": "Before Edge 79, `BackgroundImage` and `BackgroundAlpha` were supported."
               },
               "firefox": {
                 "version_added": "3"
@@ -107,7 +118,8 @@
               "samsunginternet_android": {
                 "version_added": "1.5"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -120,6 +132,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/k1",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fecomposite-k1",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -145,7 +160,8 @@
               "samsunginternet_android": {
                 "version_added": "1.5"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -158,6 +174,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/k2",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fecomposite-k2",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -183,7 +202,8 @@
               "samsunginternet_android": {
                 "version_added": "1.5"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -196,6 +216,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/k3",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fecomposite-k3",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -221,7 +244,8 @@
               "samsunginternet_android": {
                 "version_added": "1.5"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -234,6 +258,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/k4",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fecomposite-k4",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -259,7 +286,8 @@
               "samsunginternet_android": {
                 "version_added": "1.5"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -270,6 +298,9 @@
         },
         "operator": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -295,7 +326,8 @@
               "samsunginternet_android": {
                 "version_added": "1.5"
               },
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -305,7 +337,10 @@
           },
           "lighter_value": {
             "__compat": {
-              "description": "<code>lighter</code> value",
+              "description": "`lighter` value",
+              "tags": [
+                "web-features:svg-filters"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "41"
@@ -327,7 +362,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
diff --git a/svg/elements/feConvolveMatrix.json b/svg/elements/feConvolveMatrix.json
index 276de4155fc7e6..63cd1452c6b3a1 100644
--- a/svg/elements/feConvolveMatrix.json
+++ b/svg/elements/feConvolveMatrix.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feConvolveMatrix",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feConvolveMatrixElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "6"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/bias",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feconvolvematrix-bias",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -61,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,6 +82,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/divisor",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feconvolvematrix-divisor",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -95,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -108,6 +120,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/edgeMode",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feconvolvematrix-edgemode",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -129,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,6 +158,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/in",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-filter-primitive-in",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -165,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -178,6 +198,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/kernelMatrix",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feconvolvematrix-kernelmatrix",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -201,7 +224,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -214,6 +238,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/kernelUnitLength",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feconvolvematrix-kernelunitlength",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -235,7 +262,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -248,6 +276,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/order",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-order",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -269,7 +300,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -282,6 +314,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/preserveAlpha",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feconvolvematrix-preservealpha",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -303,7 +338,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -316,6 +352,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/targetX",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feconvolvematrix-targetx",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -337,7 +376,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -350,6 +390,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/targetY",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feconvolvematrix-targety",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -371,7 +414,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feDiffuseLighting.json b/svg/elements/feDiffuseLighting.json
index 3044aa7329f14a..5f4883b980a6e3 100644
--- a/svg/elements/feDiffuseLighting.json
+++ b/svg/elements/feDiffuseLighting.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feDiffuseLighting",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feDiffuseLightingElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/diffuseConstant",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fediffuselighting-diffuseconstant",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -61,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,6 +82,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/in",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-filter-primitive-in",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -97,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,6 +122,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/kernelUnitLength",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fediffuselighting-kernelunitlength",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -131,7 +146,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,6 +160,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/surfaceScale",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fediffuselighting-surfacescale",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -165,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feDisplacementMap.json b/svg/elements/feDisplacementMap.json
index 8e1f8f415756ce..3ffeb218fa8b27 100644
--- a/svg/elements/feDisplacementMap.json
+++ b/svg/elements/feDisplacementMap.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feDisplacementMap",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feDisplacementMapElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,6 +42,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -61,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,6 +80,9 @@
         },
         "in2": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -95,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -108,6 +120,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/scale",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fedisplacementmap-scale",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -131,7 +146,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,6 +160,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/xChannelSelector",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fedisplacementmap-xchannelselector",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -165,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -178,6 +198,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/yChannelSelector",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fedisplacementmap-ychannelselector",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -199,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feDistantLight.json b/svg/elements/feDistantLight.json
index 90887ba148d781..0726ce3aac97b4 100644
--- a/svg/elements/feDistantLight.json
+++ b/svg/elements/feDistantLight.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feDistantLight",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feDistantLightElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/azimuth",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fedistantlight-azimuth",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -61,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,6 +82,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/elevation",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fedistantlight-elevation",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -95,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feDropShadow.json b/svg/elements/feDropShadow.json
index 582a3d81a19baf..9f6cf063cfde26 100644
--- a/svg/elements/feDropShadow.json
+++ b/svg/elements/feDropShadow.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feDropShadow",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feDropShadowElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -36,6 +40,9 @@
         },
         "dx": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -57,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -68,6 +76,9 @@
         },
         "dy": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -89,7 +100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -100,6 +112,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -121,7 +136,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,6 +148,9 @@
         },
         "stdDeviation": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "13"
@@ -153,7 +172,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feFlood.json b/svg/elements/feFlood.json
index 4e03a4240d48ad..0ec8f2fc8aa02f 100644
--- a/svg/elements/feFlood.json
+++ b/svg/elements/feFlood.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feFlood",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feFloodElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,79 +31,14 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
             "standard_track": true,
             "deprecated": false
           }
-        },
-        "flood-color": {
-          "__compat": {
-            "support": {
-              "chrome": {
-                "version_added": "5"
-              },
-              "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
-              "firefox": {
-                "version_added": "3"
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": "≤11"
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": "6"
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
-        },
-        "flood-opacity": {
-          "__compat": {
-            "support": {
-              "chrome": {
-                "version_added": "5"
-              },
-              "chrome_android": "mirror",
-              "edge": "mirror",
-              "firefox": {
-                "version_added": "3"
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": false
-              },
-              "oculus": "mirror",
-              "opera": "mirror",
-              "opera_android": "mirror",
-              "safari": {
-                "version_added": "6"
-              },
-              "safari_ios": "mirror",
-              "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
         }
       }
     }
diff --git a/svg/elements/feFuncA.json b/svg/elements/feFuncA.json
index f04c8033a17e9d..c77b81a9fa4226 100644
--- a/svg/elements/feFuncA.json
+++ b/svg/elements/feFuncA.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feFuncA",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feFuncAElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/svg/elements/feFuncB.json b/svg/elements/feFuncB.json
index 0ae4e54c7fb12d..f14637254f38b4 100644
--- a/svg/elements/feFuncB.json
+++ b/svg/elements/feFuncB.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feFuncB",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feFuncBElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/svg/elements/feFuncG.json b/svg/elements/feFuncG.json
index dad9c4e3d3493a..c2da19a8d6a2e3 100644
--- a/svg/elements/feFuncG.json
+++ b/svg/elements/feFuncG.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feFuncG",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feFuncGElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/svg/elements/feFuncR.json b/svg/elements/feFuncR.json
index df442401a7a313..b20e3dd4efa481 100644
--- a/svg/elements/feFuncR.json
+++ b/svg/elements/feFuncR.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feFuncR",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feFuncRElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/svg/elements/feGaussianBlur.json b/svg/elements/feGaussianBlur.json
index 7194e494add149..51d69c493c9f4d 100644
--- a/svg/elements/feGaussianBlur.json
+++ b/svg/elements/feGaussianBlur.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feGaussianBlur",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feGaussianBlurElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -30,7 +33,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,9 @@
         },
         "edgeMode": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -61,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,6 +80,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -97,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,6 +122,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stdDeviation",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fegaussianblur-stddeviation",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -135,7 +150,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feImage.json b/svg/elements/feImage.json
index 32931b79f422ff..395e3d92789747 100644
--- a/svg/elements/feImage.json
+++ b/svg/elements/feImage.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feImage",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feImageElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/crossorigin",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#dom-svgfilterprimitivestandardattributes-height",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,6 +85,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feimage-href",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -87,7 +98,7 @@
               },
               "firefox": {
                 "version_added": "3",
-                "notes": "Document fragments (including references to fragments in the current document) are not supported (see <a href='https://bugzil.la/455986'>bug 455986</a>)."
+                "notes": "Document fragments (including references to fragments in the current document) are not supported (see [bug 455986](https://bugzil.la/455986))."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,6 +124,9 @@
         },
         "preserveAspectRatio": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -133,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,7 +160,7 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -155,7 +171,7 @@
               },
               "firefox": {
                 "version_added": "4",
-                "notes": "Document fragments (including references to fragments in the current document) are not supported (see <a href='https://bugzil.la/455986'>bug 455986</a>)."
+                "notes": "Document fragments (including references to fragments in the current document) are not supported (see [bug 455986](https://bugzil.la/455986))."
               },
               "firefox_android": "mirror",
               "ie": {
@@ -171,7 +187,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feMerge.json b/svg/elements/feMerge.json
index c43d29fb9edee1..61753903d5276e 100644
--- a/svg/elements/feMerge.json
+++ b/svg/elements/feMerge.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feMerge",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feMergeElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/svg/elements/feMergeNode.json b/svg/elements/feMergeNode.json
index 03fcba08e2254c..5b79cab459e622 100644
--- a/svg/elements/feMergeNode.json
+++ b/svg/elements/feMergeNode.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feMergeNode",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feMergeNodeElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feMorphology.json b/svg/elements/feMorphology.json
index 3cc37428782f14..362348ae308186 100644
--- a/svg/elements/feMorphology.json
+++ b/svg/elements/feMorphology.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feMorphology",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feMorphologyElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +88,9 @@
         },
         "operator": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -107,7 +118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -120,6 +132,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/radius",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-femorphology-radius",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -147,7 +162,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feOffset.json b/svg/elements/feOffset.json
index 977371f7d88d5b..0faef31642a1d9 100644
--- a/svg/elements/feOffset.json
+++ b/svg/elements/feOffset.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feOffset",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feOffsetElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "dx": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +88,9 @@
         },
         "dy": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -107,7 +118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -118,6 +130,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "6"
@@ -145,7 +160,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/fePointLight.json b/svg/elements/fePointLight.json
index 9b4ccd07473df4..dbb10341c9ae1d 100644
--- a/svg/elements/fePointLight.json
+++ b/svg/elements/fePointLight.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/fePointLight",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#fePointLightElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "x": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +88,9 @@
         },
         "y": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -107,7 +118,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -118,6 +130,9 @@
         },
         "z": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -145,7 +160,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feSpecularLighting.json b/svg/elements/feSpecularLighting.json
index 4aa50442c9a9ab..ccc0d4b57c7487 100644
--- a/svg/elements/feSpecularLighting.json
+++ b/svg/elements/feSpecularLighting.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feSpecularLighting",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feSpecularLightingElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +88,9 @@
         },
         "kernelUnitLength": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "45"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -114,6 +126,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/specularConstant",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fespecularlighting-specularconstant",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -141,7 +156,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -152,6 +168,9 @@
         },
         "specularExponent": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -179,7 +198,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -190,6 +210,9 @@
         },
         "surfaceScale": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -211,7 +234,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feSpotLight.json b/svg/elements/feSpotLight.json
index bdc152dcb75c81..89d73873ff5845 100644
--- a/svg/elements/feSpotLight.json
+++ b/svg/elements/feSpotLight.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feSpotLight",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feSpotLightElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/limitingConeAngle",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fespotlight-limitingconeangle",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -71,7 +78,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -84,6 +92,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/pointsAtX",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fespotlight-pointsatx",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -111,7 +122,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -124,6 +136,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/pointsAtY",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fespotlight-pointsaty",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -151,7 +166,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -164,6 +180,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/pointsAtZ",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-fespotlight-pointsatz",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -191,7 +210,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -202,6 +222,9 @@
         },
         "specularExponent": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -229,7 +252,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -240,6 +264,9 @@
         },
         "x": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -267,7 +294,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -278,6 +306,9 @@
         },
         "y": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -305,7 +336,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -316,6 +348,9 @@
         },
         "z": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -343,7 +378,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feTile.json b/svg/elements/feTile.json
index 8082167c6a24a9..8534bb2e1a3e2d 100644
--- a/svg/elements/feTile.json
+++ b/svg/elements/feTile.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feTile",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feTileElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "in": {
           "__compat": {
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/feTurbulence.json b/svg/elements/feTurbulence.json
index a8b4646b93c634..5e56dd39c9f89e 100644
--- a/svg/elements/feTurbulence.json
+++ b/svg/elements/feTurbulence.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/feTurbulence",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#feTurbulenceElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -12,7 +15,7 @@
             "chrome_android": "mirror",
             "edge": {
               "version_added": "12",
-              "notes": "Partially supported, see <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/'>bug 12382004</a>."
+              "notes": "Partially supported, see [bug 12382004](https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/)."
             },
             "firefox": {
               "version_added": "3"
@@ -20,7 +23,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "≤11",
-              "notes": "Partially supported, see <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/'>bug 12382004</a>."
+              "notes": "Partially supported, see [bug 12382004](https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/)."
             },
             "oculus": "mirror",
             "opera": {
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/baseFrequency",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feturbulence-basefrequency",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -51,7 +58,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "Partially supported, see <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/'>bug 12382004</a>."
+                "notes": "Partially supported, see [bug 12382004](https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/)."
               },
               "firefox": {
                 "version_added": "3"
@@ -59,7 +66,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "≤11",
-                "notes": "Partially supported, see <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/'>bug 12382004</a>."
+                "notes": "Partially supported, see [bug 12382004](https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/)."
               },
               "oculus": "mirror",
               "opera": {
@@ -71,7 +78,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -84,6 +92,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/numOctaves",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feturbulence-numoctaves",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -105,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -118,6 +130,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/seed",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feturbulence-seed",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -125,7 +140,7 @@
               "chrome_android": "mirror",
               "edge": {
                 "version_added": "12",
-                "notes": "Partially supported, see <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/'>bug 12382004</a>."
+                "notes": "Partially supported, see [bug 12382004](https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/)."
               },
               "firefox": {
                 "version_added": "3"
@@ -133,7 +148,7 @@
               "firefox_android": "mirror",
               "ie": {
                 "version_added": "≤11",
-                "notes": "Partially supported, see <a href='https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/'>bug 12382004</a>."
+                "notes": "Partially supported, see [bug 12382004](https://developer.microsoft.com/microsoft-edge/platform/issues/12382004/)."
               },
               "oculus": "mirror",
               "opera": {
@@ -145,7 +160,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -158,6 +174,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stitchTiles",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feturbulence-stitchtiles",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -179,7 +198,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -192,6 +212,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/type",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-feturbulence-type",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -213,7 +236,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/filter.json b/svg/elements/filter.json
index ccf74e54712565..ae0cfc2fd0b4bc 100644
--- a/svg/elements/filter.json
+++ b/svg/elements/filter.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/filter",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#FilterElement",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/filterUnits",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-filter-filterunits",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/height",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-filter-height",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -99,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,6 +124,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/primitiveUnits",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-filter-primitiveunits",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -133,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -146,6 +162,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/width",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-filter-width",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -167,7 +186,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -180,6 +200,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/x",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-filter-x",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -201,7 +224,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -212,7 +236,7 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/xlink:href",
             "spec_url": "https://www.w3.org/TR/SVG11/filters.html#FilterElementHrefAttribute",
             "support": {
@@ -236,7 +260,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -249,6 +274,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/y",
             "spec_url": "https://drafts.fxtf.org/filter-effects/#element-attrdef-filter-y",
+            "tags": [
+              "web-features:svg-filters"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -270,7 +298,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/font-face-format.json b/svg/elements/font-face-format.json
index 0e7b68272807a5..08ff1cc3fb81f5 100644
--- a/svg/elements/font-face-format.json
+++ b/svg/elements/font-face-format.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -63,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/font-face-name.json b/svg/elements/font-face-name.json
index 18ffc296fda235..a4f8de0c5dff23 100644
--- a/svg/elements/font-face-name.json
+++ b/svg/elements/font-face-name.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/font-face-src.json b/svg/elements/font-face-src.json
index 6f87bbde927886..a25dfce9f84c03 100644
--- a/svg/elements/font-face-src.json
+++ b/svg/elements/font-face-src.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/svg/elements/font-face-uri.json b/svg/elements/font-face-uri.json
index 88c6a36b242be6..61af27d63d1504 100644
--- a/svg/elements/font-face-uri.json
+++ b/svg/elements/font-face-uri.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -62,7 +63,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/font-face.json b/svg/elements/font-face.json
index fd8b715ea4345c..0ce0c236b60edc 100644
--- a/svg/elements/font-face.json
+++ b/svg/elements/font-face.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -63,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -99,7 +101,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,7 +138,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -171,7 +175,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -207,7 +212,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -243,7 +249,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -279,7 +286,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -315,7 +323,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -351,7 +360,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -387,7 +397,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -423,7 +434,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -459,7 +471,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -495,7 +508,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -531,7 +545,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -567,7 +582,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -603,7 +619,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -639,7 +656,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -675,7 +693,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -711,7 +730,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -747,7 +767,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -783,7 +804,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -819,7 +841,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -855,7 +878,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -891,7 +915,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -927,7 +952,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -963,7 +989,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -999,7 +1026,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1035,7 +1063,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1071,7 +1100,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1107,7 +1137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1143,7 +1174,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1179,7 +1211,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -1215,7 +1248,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/font.json b/svg/elements/font.json
index bff6ff2ff27cf7..6e762f08ff82aa 100644
--- a/svg/elements/font.json
+++ b/svg/elements/font.json
@@ -54,7 +54,8 @@
             "webview_android": {
               "version_added": "3",
               "version_removed": "62"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -91,7 +92,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -126,7 +128,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -161,7 +164,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -199,7 +203,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -234,7 +239,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -269,7 +275,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/foreignObject.json b/svg/elements/foreignObject.json
index 9e7fa9ff256f37..5de29d5aa73f7f 100644
--- a/svg/elements/foreignObject.json
+++ b/svg/elements/foreignObject.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/foreignObject",
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#ForeignObjectElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,7 +39,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
         },
         "height": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -77,7 +84,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -90,6 +98,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -121,7 +132,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,6 +144,9 @@
         },
         "width": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -163,7 +178,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -174,6 +190,9 @@
         },
         "x": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -205,7 +224,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -216,6 +236,9 @@
         },
         "y": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -247,7 +270,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/g.json b/svg/elements/g.json
index 4dfa7fb16df0ff..26bdcd1542cf9f 100644
--- a/svg/elements/g.json
+++ b/svg/elements/g.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/g",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#GElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -71,7 +78,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/glyph.json b/svg/elements/glyph.json
index dad0bf02237654..fb70818c9fbc39 100644
--- a/svg/elements/glyph.json
+++ b/svg/elements/glyph.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -63,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -97,7 +99,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -133,7 +136,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -167,7 +171,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -201,7 +206,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -237,7 +243,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -273,7 +280,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -307,7 +315,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -341,7 +350,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -375,7 +385,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/glyphRef.json b/svg/elements/glyphRef.json
index 8a78c0b6bbdf0c..7d604b840f3011 100644
--- a/svg/elements/glyphRef.json
+++ b/svg/elements/glyphRef.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +97,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,7 +132,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -163,7 +167,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -197,7 +202,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -208,7 +214,7 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "support": {
               "chrome": {
                 "version_added": "14",
@@ -232,7 +238,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -266,7 +273,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/hkern.json b/svg/elements/hkern.json
index 111b474284bc20..4baa21597a4f34 100644
--- a/svg/elements/hkern.json
+++ b/svg/elements/hkern.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -63,7 +64,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -99,7 +101,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -135,7 +138,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -171,7 +175,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -207,7 +212,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/image.json b/svg/elements/image.json
index 216c9626aa1429..777758801203c3 100644
--- a/svg/elements/image.json
+++ b/svg/elements/image.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/image",
           "spec_url": "https://svgwg.org/svg2-draft/embedded.html#ImageElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/crossorigin",
             "spec_url": "https://svgwg.org/svg2-draft/embedded.html#ImageElementCrossoriginAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "118"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +88,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/decoding",
             "spec_url": "https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-decoding",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "65"
@@ -101,7 +112,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,6 +124,9 @@
         },
         "height": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -133,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -145,6 +161,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/svg2-draft/embedded.html#ImageElementHrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -168,7 +187,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -179,6 +199,9 @@
         },
         "preserveAspectRatio": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -200,7 +223,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -213,6 +237,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -242,7 +269,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -253,6 +281,9 @@
         },
         "width": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -274,7 +305,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -285,6 +317,9 @@
         },
         "x": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -306,7 +341,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -317,7 +353,7 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -339,7 +375,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -350,6 +387,9 @@
         },
         "y": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -371,7 +411,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/line.json b/svg/elements/line.json
index fc3443863feaac..de3b4f89c5ce0b 100644
--- a/svg/elements/line.json
+++ b/svg/elements/line.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/line",
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#LineElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -75,7 +82,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -86,6 +94,9 @@
         },
         "x1": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -115,7 +126,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -126,6 +138,9 @@
         },
         "x2": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -155,7 +170,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -166,6 +182,9 @@
         },
         "y1": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -195,7 +214,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -206,6 +226,9 @@
         },
         "y2": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -235,7 +258,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/linearGradient.json b/svg/elements/linearGradient.json
index 609a63af68d7da..eb400e358a7bc3 100644
--- a/svg/elements/linearGradient.json
+++ b/svg/elements/linearGradient.json
@@ -4,7 +4,10 @@
       "linearGradient": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/linearGradient",
-          "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradients",
+          "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,10 +49,9 @@
         "gradientTransform": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/gradientTransform",
-            "spec_url": [
-              "https://drafts.csswg.org/css-transforms/#typedef-transform-list",
-              "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementGradientTransformAttribute",
-              "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementGradientTransformAttribute"
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementGradientTransformAttribute",
+            "tags": [
+              "web-features:svg"
             ],
             "support": {
               "chrome": {
@@ -71,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,6 +86,10 @@
         },
         "gradientUnits": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementGradientUnitsAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -103,7 +111,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -115,6 +124,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementHrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -138,7 +150,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -150,9 +163,9 @@
         "spreadMethod": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/spreadMethod",
-            "spec_url": [
-              "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementSpreadMethodAttribute",
-              "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementSpreadMethodAttribute"
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementSpreadMethodAttribute",
+            "tags": [
+              "web-features:svg"
             ],
             "support": {
               "chrome": {
@@ -175,7 +188,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -186,6 +200,10 @@
         },
         "x1": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementX1Attribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -207,7 +225,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -218,6 +237,10 @@
         },
         "x2": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementX2Attribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -239,7 +262,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -250,7 +274,8 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#XLinkHrefAttribute",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -272,7 +297,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -283,6 +309,10 @@
         },
         "y1": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementY1Attribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -304,7 +334,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -315,6 +346,10 @@
         },
         "y2": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementY2Attribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -336,7 +371,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/marker.json b/svg/elements/marker.json
index 0370ebf0ccee59..b6d1f372dbf51c 100644
--- a/svg/elements/marker.json
+++ b/svg/elements/marker.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/marker",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#MarkerElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/markerHeight",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#MarkerHeightAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -80,6 +88,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/markerUnits",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#MarkerUnitsAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -103,7 +114,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -116,6 +128,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/markerWidth",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#MarkerWidthAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -139,7 +154,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -152,6 +168,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/orient",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#OrientAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -175,7 +194,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -186,6 +206,9 @@
         },
         "refX": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -209,7 +232,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -220,6 +244,9 @@
         },
         "refY": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -243,7 +270,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -254,6 +282,9 @@
         },
         "viewBox": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -277,7 +308,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/mask.json b/svg/elements/mask.json
index 44d024bfb41f9f..30cd6bea949adc 100644
--- a/svg/elements/mask.json
+++ b/svg/elements/mask.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/mask",
           "spec_url": "https://drafts.fxtf.org/css-masking/#MaskElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,6 +42,9 @@
         },
         "height": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -61,7 +68,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -74,6 +82,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/maskContentUnits",
             "spec_url": "https://drafts.fxtf.org/css-masking/#element-attrdef-mask-maskcontentunits",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -95,7 +106,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -108,6 +120,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/maskUnits",
             "spec_url": "https://drafts.fxtf.org/css-masking/#element-attrdef-mask-maskunits",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -129,7 +144,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -142,6 +158,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -165,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -176,6 +196,9 @@
         },
         "width": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -199,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -210,6 +234,9 @@
         },
         "x": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -233,7 +260,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -244,6 +272,9 @@
         },
         "y": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -267,7 +298,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/metadata.json b/svg/elements/metadata.json
index 783faa03822f8b..2ee8a6588b5343 100644
--- a/svg/elements/metadata.json
+++ b/svg/elements/metadata.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/metadata",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#MetadataElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/svg/elements/missing-glyph.json b/svg/elements/missing-glyph.json
index 1af1dc4e7b0ce5..775d1f0f2425bd 100644
--- a/svg/elements/missing-glyph.json
+++ b/svg/elements/missing-glyph.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +97,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,7 +132,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -163,7 +167,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -197,7 +202,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/mpath.json b/svg/elements/mpath.json
index 82da8f59c1af13..a4391421e61e5c 100644
--- a/svg/elements/mpath.json
+++ b/svg/elements/mpath.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/mpath",
           "spec_url": "https://svgwg.org/specs/animations/#MPathElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "19"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -39,6 +43,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/specs/animations/#MPathElementHrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -62,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -73,7 +81,7 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "support": {
               "chrome": {
                 "version_added": "19"
@@ -95,7 +103,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/path.json b/svg/elements/path.json
index 4dd3c820f4694a..120007c0efe658 100644
--- a/svg/elements/path.json
+++ b/svg/elements/path.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/path",
           "spec_url": "https://svgwg.org/svg2-draft/paths.html#PathElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -50,6 +54,9 @@
               "https://www.w3.org/TR/SVG11/fonts.html#GlyphElementDAttribute",
               "https://www.w3.org/TR/SVG11/paths.html#DAttribute"
             ],
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -79,7 +86,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -89,9 +97,12 @@
           },
           "path": {
             "__compat": {
-              "description": "<code>d</code> as CSS property supports <code>path()</code>",
+              "description": "`d` as CSS property supports `path()`",
               "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/path",
               "spec_url": "https://drafts.csswg.org/css-shapes/#funcdef-basic-shape-path",
+              "tags": [
+                "web-features:svg"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "52"
@@ -117,7 +128,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -131,6 +143,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingFillPaint",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -154,7 +169,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -164,8 +180,11 @@
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+              "tags": [
+                "web-features:context-fill-stroke"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "124"
@@ -187,7 +206,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -201,6 +221,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -230,7 +253,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/pattern.json b/svg/elements/pattern.json
index 32361bc611565b..fc4480ef8fdf2b 100644
--- a/svg/elements/pattern.json
+++ b/svg/elements/pattern.json
@@ -4,7 +4,10 @@
       "pattern": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/pattern",
-          "spec_url": "https://svgwg.org/svg2-draft/pservers.html#Patterns",
+          "spec_url": "https://svgwg.org/svg2-draft/pservers.html#PatternElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -30,7 +33,8 @@
               "version_added": "3"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -40,6 +44,10 @@
         },
         "height": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#PatternElementHeightAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -65,7 +73,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,6 +86,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/svg2-draft/pservers.html#PatternElementHrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -98,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -111,6 +124,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/patternContentUnits",
             "spec_url": "https://svgwg.org/svg2-draft/pservers.html#PatternElementPatternContentUnitsAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -134,7 +150,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -147,6 +164,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/patternTransform",
             "spec_url": "https://svgwg.org/svg2-draft/pservers.html#PatternElementPatternTransformAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -170,7 +190,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -183,6 +204,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/patternUnits",
             "spec_url": "https://svgwg.org/svg2-draft/pservers.html#PatternElementPatternUnitsAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -206,7 +230,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -219,6 +244,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -244,7 +272,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -255,6 +284,10 @@
         },
         "width": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#PatternElementWidthAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -280,7 +313,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -291,6 +325,10 @@
         },
         "x": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#PatternElementXAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -316,7 +354,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -327,7 +366,8 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#XLinkHrefAttribute",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -353,7 +393,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -364,6 +405,10 @@
         },
         "y": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#PatternElementYAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -389,7 +434,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/polygon.json b/svg/elements/polygon.json
index dce69d12e84906..8b701325e535bb 100644
--- a/svg/elements/polygon.json
+++ b/svg/elements/polygon.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/polygon",
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#PolygonElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingFillPaint",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -69,7 +76,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -79,8 +87,11 @@
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+              "tags": [
+                "web-features:context-fill-stroke"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "124"
@@ -102,7 +113,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -114,6 +126,9 @@
         },
         "points": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -143,7 +158,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,6 +172,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -185,7 +204,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/polyline.json b/svg/elements/polyline.json
index e698fcef95efd1..0fc3cf0c926cfb 100644
--- a/svg/elements/polyline.json
+++ b/svg/elements/polyline.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/polyline",
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#PolylineElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingFillPaint",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -69,7 +76,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -79,8 +87,11 @@
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+              "tags": [
+                "web-features:context-fill-stroke"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "124"
@@ -102,7 +113,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -114,6 +126,9 @@
         },
         "points": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -143,7 +158,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -156,6 +172,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -185,7 +204,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/radialGradient.json b/svg/elements/radialGradient.json
index a1637b19038bfd..a14fc79b412d3c 100644
--- a/svg/elements/radialGradient.json
+++ b/svg/elements/radialGradient.json
@@ -4,7 +4,10 @@
       "radialGradient": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/radialGradient",
-          "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradients",
+          "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,10 @@
         },
         "cx": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementCXAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -65,7 +73,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +85,10 @@
         },
         "cy": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementCYAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -97,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,6 +124,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fr",
             "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementFRAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "24"
@@ -131,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,6 +162,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fx",
             "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementFXAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -165,7 +186,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -178,6 +200,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fy",
             "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementFYAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -199,7 +224,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -210,6 +236,10 @@
         },
         "gradientTransform": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementGradientTransformAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -231,7 +261,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -242,6 +273,10 @@
         },
         "gradientUnits": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementGradientUnitsAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -263,7 +298,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -275,6 +311,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementHrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -298,7 +337,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -309,6 +349,10 @@
         },
         "r": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementRAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -330,7 +374,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -342,9 +387,9 @@
         "spreadMethod": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/spreadMethod",
-            "spec_url": [
-              "https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementSpreadMethodAttribute",
-              "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementSpreadMethodAttribute"
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#RadialGradientElementSpreadMethodAttribute",
+            "tags": [
+              "web-features:svg"
             ],
             "support": {
               "chrome": {
@@ -367,7 +412,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -378,7 +424,8 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
+            "spec_url": "https://svgwg.org/svg2-draft/linking.html#XLinkHrefAttribute",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -400,7 +447,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/rect.json b/svg/elements/rect.json
index a1efa19b3de9f2..af58a037d13b3d 100644
--- a/svg/elements/rect.json
+++ b/svg/elements/rect.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/rect",
           "spec_url": "https://svgwg.org/svg2-draft/shapes.html#RectElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingFillPaint",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -77,8 +85,11 @@
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+              "tags": [
+                "web-features:context-fill-stroke"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "124"
@@ -100,7 +111,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -112,6 +124,9 @@
         },
         "height": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -141,7 +156,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -152,6 +168,9 @@
         },
         "rx": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -181,7 +200,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -192,6 +212,9 @@
         },
         "ry": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -221,7 +244,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -234,6 +258,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -263,7 +290,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -274,6 +302,9 @@
         },
         "width": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -303,7 +334,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -314,6 +346,9 @@
         },
         "x": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -343,7 +378,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -354,6 +390,9 @@
         },
         "y": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -383,7 +422,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/script.json b/svg/elements/script.json
index 4f3abf6c592cde..161a8b95e6b6a5 100644
--- a/svg/elements/script.json
+++ b/svg/elements/script.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/script",
           "spec_url": "https://svgwg.org/svg2-draft/interact.html#ScriptElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         },
         "async": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -76,6 +84,9 @@
         },
         "defer": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -97,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -109,6 +121,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/svg2-draft/interact.html#ScriptElementHrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -132,7 +147,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -143,6 +159,9 @@
         },
         "type": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -164,7 +183,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -174,9 +194,9 @@
           },
           "module": {
             "__compat": {
-              "description": "<code>type='module'</code>",
+              "description": "`type='module'`",
               "tags": [
-                "web-features:js-modules"
+                "web-features:svg"
               ],
               "support": {
                 "chrome": {
@@ -199,7 +219,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": true,
@@ -212,6 +233,9 @@
         "xlink_href": {
           "__compat": {
             "description": "xlink:href",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -233,7 +257,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/set.json b/svg/elements/set.json
index ca27e7e2551bf4..bf5036d315170b 100644
--- a/svg/elements/set.json
+++ b/svg/elements/set.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/set",
           "spec_url": "https://svgwg.org/specs/animations/#SetElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -34,7 +37,8 @@
               "version_added": "1"
             },
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/specs/animations/#FillAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -79,6 +87,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/specs/animations/#HrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -102,7 +113,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -115,6 +127,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -142,7 +157,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -153,6 +169,9 @@
         },
         "to": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "2"
@@ -182,7 +201,8 @@
                 "version_added": "1"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/stop.json b/svg/elements/stop.json
index 67d6d534de181b..671e8a57f4be3a 100644
--- a/svg/elements/stop.json
+++ b/svg/elements/stop.json
@@ -4,7 +4,10 @@
       "stop": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/stop",
-          "spec_url": "https://svgwg.org/svg2-draft/pservers.html#GradientStops",
+          "spec_url": "https://svgwg.org/svg2-draft/pservers.html#StopElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -36,7 +39,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,10 @@
         },
         "offset": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#StopElementOffsetAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -77,99 +85,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
-        },
-        "stop-color": {
-          "__compat": {
-            "support": {
-              "chrome": {
-                "version_added": "1"
-              },
-              "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
-              "firefox": {
-                "version_added": "1.5"
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": "9"
-              },
-              "oculus": "mirror",
-              "opera": {
-                "version_added": "9"
-              },
-              "opera_android": {
-                "version_added": "10.1"
-              },
-              "safari": {
-                "version_added": "3"
-              },
-              "safari_ios": {
-                "version_added": "3"
-              },
-              "samsunginternet_android": "mirror",
-              "webview_android": {
-                "version_added": "3"
-              }
-            },
-            "status": {
-              "experimental": false,
-              "standard_track": true,
-              "deprecated": false
-            }
-          }
-        },
-        "stop-opacity": {
-          "__compat": {
-            "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stop-opacity",
-            "spec_url": "https://svgwg.org/svg2-draft/pservers.html#StopOpacityProperty",
-            "support": {
-              "chrome": {
-                "version_added": "1"
               },
-              "chrome_android": "mirror",
-              "edge": {
-                "version_added": "12"
-              },
-              "firefox": {
-                "version_added": "1.5"
-              },
-              "firefox_android": "mirror",
-              "ie": {
-                "version_added": "9"
-              },
-              "oculus": "mirror",
-              "opera": {
-                "version_added": "9"
-              },
-              "opera_android": {
-                "version_added": "10.1"
-              },
-              "safari": {
-                "version_added": "3"
-              },
-              "safari_ios": [
-                {
-                  "version_added": "14"
-                },
-                {
-                  "version_added": "3",
-                  "version_removed": "11"
-                }
-              ],
-              "samsunginternet_android": "mirror",
-              "webview_android": {
-                "version_added": "3"
-              }
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/style.json b/svg/elements/style.json
index 728965558c507a..c564f481629b13 100644
--- a/svg/elements/style.json
+++ b/svg/elements/style.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/style",
           "spec_url": "https://svgwg.org/svg2-draft/styling.html#StyleElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/media",
             "spec_url": "https://svgwg.org/svg2-draft/styling.html#StyleElementMediaAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -67,7 +74,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +86,9 @@
         },
         "title": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -99,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -110,6 +122,9 @@
         },
         "type": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -131,7 +146,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/svg.json b/svg/elements/svg.json
index 99fbac1411676c..fcec779a57b605 100644
--- a/svg/elements/svg.json
+++ b/svg/elements/svg.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/svg",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#NewDocument",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -67,7 +71,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -78,6 +83,9 @@
         },
         "height": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -109,7 +117,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -120,6 +129,9 @@
         },
         "preserveAspectRatio": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -151,7 +163,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -164,6 +177,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -193,7 +209,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -229,7 +246,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -240,6 +258,9 @@
         },
         "viewBox": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -271,7 +292,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -282,6 +304,9 @@
         },
         "width": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -313,7 +338,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -324,6 +350,9 @@
         },
         "x": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -355,7 +384,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -366,6 +396,9 @@
         },
         "y": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -397,7 +430,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -433,7 +467,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/switch.json b/svg/elements/switch.json
index bd2a367a44197f..bef2ea445d6f6c 100644
--- a/svg/elements/switch.json
+++ b/svg/elements/switch.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/switch",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#SwitchElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -75,7 +82,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/symbol.json b/svg/elements/symbol.json
index 0e48cb76cc516f..8a64a47ab66a2e 100644
--- a/svg/elements/symbol.json
+++ b/svg/elements/symbol.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/symbol",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#SymbolElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,6 +48,9 @@
         },
         "preserveAspectRatio": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +84,9 @@
         },
         "viewBox": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -97,7 +108,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/text.json b/svg/elements/text.json
index 8816455bec83fe..72728ae4742fdf 100644
--- a/svg/elements/text.json
+++ b/svg/elements/text.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/text",
           "spec_url": "https://svgwg.org/svg2-draft/text.html#TextElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -46,6 +50,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/dx",
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextElementDXAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -69,7 +76,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,6 +90,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/dy",
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextElementDYAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -105,7 +116,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -118,6 +130,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingFillPaint",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -139,7 +154,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -149,8 +165,11 @@
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+              "tags": [
+                "web-features:context-fill-stroke"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "124"
@@ -172,7 +191,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -186,6 +206,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/lengthAdjust",
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextElementLengthAdjustAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -209,7 +232,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -222,6 +246,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/rotate",
             "spec_url": "https://svgwg.org/specs/animations/#RotateAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -245,7 +272,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -258,6 +286,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -287,7 +318,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -300,6 +332,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/textLength",
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextElementTextLengthAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -323,7 +358,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -336,6 +372,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/x",
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextElementXAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -359,7 +398,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -372,6 +412,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/y",
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextElementYAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -395,7 +438,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/textPath.json b/svg/elements/textPath.json
index 1834353f670fb8..224ef49034ceb3 100644
--- a/svg/elements/textPath.json
+++ b/svg/elements/textPath.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/textPath",
           "spec_url": "https://svgwg.org/svg2-draft/text.html#TextPathElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -25,11 +28,12 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "3.1",
-              "notes": "Until Safari 6, textPath was not re-rendered when the referenced path was changed dynamically (see <a href='https://webkit.org/b/15799'>bug 15799</a>)"
+              "notes": "Until Safari 6, textPath was not re-rendered when the referenced path was changed dynamically (see [bug 15799](https://webkit.org/b/15799))"
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +45,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingFillPaint",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -62,7 +69,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -72,8 +80,11 @@
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+              "tags": [
+                "web-features:context-fill-stroke"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "124"
@@ -95,7 +106,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -108,6 +120,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextPathElementHrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50",
@@ -133,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -144,6 +160,9 @@
         },
         "path": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -165,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -178,6 +198,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/side",
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextPathElementSideAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -199,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": true,
@@ -212,6 +236,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/spacing",
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextPathElementSpacingAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -233,7 +260,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -246,6 +274,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/startOffset",
             "spec_url": "https://svgwg.org/svg2-draft/text.html#TextPathElementStartOffsetAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -269,7 +300,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -282,6 +314,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -305,7 +340,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -317,6 +353,9 @@
         "textLength": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/textLength",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -340,7 +379,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -351,7 +391,7 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -375,7 +415,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/title.json b/svg/elements/title.json
index 540e98815057d6..4b903f8b611223 100644
--- a/svg/elements/title.json
+++ b/svg/elements/title.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/title",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#TitleElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -34,7 +37,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,6 +49,9 @@
         "tooltip_display": {
           "__compat": {
             "description": "Tooltip display",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -68,7 +75,8 @@
                 "version_added": "3"
               },
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/tref.json b/svg/elements/tref.json
index abbf598c33c512..c96d8292016c43 100644
--- a/svg/elements/tref.json
+++ b/svg/elements/tref.json
@@ -27,7 +27,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,17 +62,18 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": true,
-              "deprecated": false
+              "deprecated": true
             }
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
               "support": {
                 "chrome": {
@@ -95,12 +97,13 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
                 "standard_track": true,
-                "deprecated": false
+                "deprecated": true
               }
             }
           }
@@ -131,18 +134,19 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
               "standard_track": true,
-              "deprecated": false
+              "deprecated": true
             }
           }
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "support": {
               "chrome": {
                 "version_added": false
@@ -165,7 +169,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/tspan.json b/svg/elements/tspan.json
index 05f6ba81b5fe5c..864855fc7971c2 100644
--- a/svg/elements/tspan.json
+++ b/svg/elements/tspan.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/tspan",
           "spec_url": "https://svgwg.org/svg2-draft/text.html#TextElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -32,7 +35,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,6 +46,9 @@
         },
         "dx": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -65,7 +72,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -76,6 +84,9 @@
         },
         "dy": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -99,7 +110,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -112,6 +124,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingFillPaint",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -133,7 +148,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -143,8 +159,11 @@
           },
           "context-fill": {
             "__compat": {
-              "description": "<code>context-fill</code> value",
+              "description": "`context-fill` value",
               "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+              "tags": [
+                "web-features:context-fill-stroke"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "124"
@@ -166,7 +185,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -178,6 +198,9 @@
         },
         "lengthAdjust": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -199,7 +222,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -210,6 +234,9 @@
         },
         "rotate": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -233,7 +260,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -246,6 +274,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -273,7 +304,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "3"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -285,6 +317,9 @@
         "textLength": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/textLength",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -308,7 +343,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -319,6 +355,9 @@
         },
         "x": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -342,7 +381,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -353,6 +393,9 @@
         },
         "y": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -376,7 +419,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/use.json b/svg/elements/use.json
index 3cfb4f57d46a98..4248d05af5db0f 100644
--- a/svg/elements/use.json
+++ b/svg/elements/use.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/use",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#UseElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -15,7 +18,7 @@
             },
             "firefox": {
               "version_added": "1.5",
-              "notes": "Before version 56, Firefox does not completely follow the <code>use</code> cascading rules (see <a href='https://bugzil.la/265894'>bug 265894</a>). A fix is <a href='https://stackoverflow.com/questions/27866893/svg-fill-not-being-applied-in-firefox/27872310#27872310'>documented by Amelia Bellamy-Royds on StackOverflow</a>."
+              "notes": "Before version 56, Firefox does not completely follow the `use` cascading rules (see [bug 265894](https://bugzil.la/265894)). A fix is [documented by Amelia Bellamy-Royds on StackOverflow](https://stackoverflow.com/questions/27866893/svg-fill-not-being-applied-in-firefox/27872310#27872310)."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -35,7 +38,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "4"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,7 +49,10 @@
         },
         "data_uri": {
           "__compat": {
-            "description": "Load from <code>data:</code> URI",
+            "description": "Load from `data:` URI",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "22",
@@ -77,7 +84,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -89,6 +97,9 @@
         "external_uri": {
           "__compat": {
             "description": "Load from external URI",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "22"
@@ -116,7 +127,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -127,6 +139,9 @@
         },
         "height": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -150,7 +165,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -162,6 +178,9 @@
         "href": {
           "__compat": {
             "spec_url": "https://svgwg.org/svg2-draft/struct.html#UseElementHrefAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "50"
@@ -185,7 +204,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -198,6 +218,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/systemLanguage",
             "spec_url": "https://svgwg.org/svg2-draft/types.html#__svg__SVGTests__systemLanguage",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -227,7 +250,8 @@
               "samsunginternet_android": "mirror",
               "webview_android": {
                 "version_added": "4"
-              }
+              },
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -238,6 +262,9 @@
         },
         "width": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -261,7 +288,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -272,6 +300,9 @@
         },
         "x": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -295,7 +326,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -306,7 +338,7 @@
         },
         "xlink_href": {
           "__compat": {
-            "description": "<code>xlink:href</code>",
+            "description": "`xlink:href`",
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -330,7 +362,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -341,6 +374,9 @@
         },
         "y": {
           "__compat": {
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -364,7 +400,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/view.json b/svg/elements/view.json
index fae19b218a44dd..b31365d6ccbbad 100644
--- a/svg/elements/view.json
+++ b/svg/elements/view.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Element/view",
           "spec_url": "https://svgwg.org/svg2-draft/linking.html#ViewElement",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +31,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -38,6 +42,10 @@
         },
         "preserveAspectRatio": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/coords.html#PreserveAspectRatioAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -59,7 +67,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -70,6 +79,10 @@
         },
         "viewBox": {
           "__compat": {
+            "spec_url": "https://svgwg.org/svg2-draft/coords.html#ViewBoxAttribute",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "1"
@@ -91,7 +104,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -123,7 +137,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/elements/vkern.json b/svg/elements/vkern.json
index df7b71fb27fe33..faeafb5cb533b3 100644
--- a/svg/elements/vkern.json
+++ b/svg/elements/vkern.json
@@ -28,7 +28,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -61,7 +62,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -95,7 +97,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -129,7 +132,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -163,7 +167,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -197,7 +202,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/svg/global_attributes.json b/svg/global_attributes.json
index fddf7ec6ee6db9..f3b9e26edd9890 100644
--- a/svg/global_attributes.json
+++ b/svg/global_attributes.json
@@ -1,10 +1,57 @@
 {
   "svg": {
     "global_attributes": {
+      "autofocus": {
+        "__compat": {
+          "spec_url": "https://svgwg.org/svg2-draft/struct.html#autofocusattribute",
+          "tags": [
+            "web-features:autofocus"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "79"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": [
+              {
+                "version_added": "110"
+              },
+              {
+                "version_added": "78",
+                "partial_implementation": true,
+                "notes": "Only supported on `SVGGraphicsElement`."
+              }
+            ],
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "15.4"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "id": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/id",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#Core.attrib",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -28,7 +75,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -41,6 +89,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/lang",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#LangSpaceAttrs",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -64,7 +115,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -77,6 +129,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/tabindex",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#tabindexattribute",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -100,7 +155,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -137,7 +193,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -172,7 +229,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -181,10 +239,14 @@
           }
         }
       },
-      "data": {
+      "data_attributes": {
         "__compat": {
+          "description": "`data-*` attributes",
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/data-*",
           "spec_url": "https://svgwg.org/svg2-draft/struct.html#DataAttributes",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "55"
@@ -208,49 +270,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": true,
-            "deprecated": false
-          }
-        }
-      },
-      "paint-order": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/paint-order",
-          "spec_url": "https://svgwg.org/svg2-draft/painting.html#PaintOrder",
-          "support": {
-            "chrome": {
-              "version_added": "≤73"
-            },
-            "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤79"
-            },
-            "firefox": {
-              "version_added": "≤66"
-            },
-            "firefox_android": "mirror",
-            "ie": {
-              "version_added": false
-            },
-            "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": {
-              "version_added": false
-            },
-            "safari": {
-              "version_added": "≤12"
-            },
-            "safari_ios": {
-              "version_added": false
-            },
-            "samsunginternet_android": "mirror",
-            "webview_android": {
-              "version_added": false
-            }
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -263,6 +284,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/class",
           "spec_url": "https://svgwg.org/svg2-draft/styling.html#ElementSpecificStyling",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -286,7 +310,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -297,6 +322,9 @@
         "animation_support": {
           "__compat": {
             "description": "Animation support",
+            "tags": [
+              "web-features:smil-svg-animations"
+            ],
             "support": {
               "chrome": {
                 "version_added": "5"
@@ -318,7 +346,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -332,6 +361,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/style",
           "spec_url": "https://svgwg.org/svg2-draft/styling.html#ElementSpecificStyling",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -355,7 +387,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -366,6 +399,9 @@
       },
       "requiredExtensions": {
         "__compat": {
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "81"
@@ -387,7 +423,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -398,6 +435,9 @@
         "mathml": {
           "__compat": {
             "description": "Recognizes MathML namespace",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "109"
@@ -419,7 +459,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -436,14 +477,15 @@
             "https://drafts.csswg.org/css-inline/#alignment-baseline-property",
             "https://svgwg.org/svg2-draft/text.html#AlignmentBaselineProperty"
           ],
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": false
             },
@@ -459,7 +501,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -475,6 +518,9 @@
             "https://drafts.csswg.org/css-inline/#baseline-shift-property",
             "https://svgwg.org/svg2-draft/text.html#BaselineShiftProperty"
           ],
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -496,7 +542,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -523,7 +570,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "4",
-              "notes": "Before Internet Explorer 7, Internet Explorer incorrectly interprets <code>clip: auto</code> as <code>clip: rect(auto, auto, auto, auto)</code>."
+              "notes": "Before Internet Explorer 7, Internet Explorer incorrectly interprets `clip: auto` as `clip: rect(auto, auto, auto, auto)`."
             },
             "oculus": "mirror",
             "opera": {
@@ -532,13 +579,14 @@
             "opera_android": "mirror",
             "safari": {
               "version_added": "1",
-              "notes": "Safari incorrectly interprets <code>clip: auto</code> as <code>clip: rect(auto, auto, auto, auto)</code>."
+              "notes": "Safari incorrectly interprets `clip: auto` as `clip: rect(auto, auto, auto, auto)`."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "37"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -551,6 +599,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/clip-path",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-clip-path",
+          "tags": [
+            "web-features:clip-path"
+          ],
           "support": {
             "chrome": {
               "version_added": "23"
@@ -574,7 +625,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -587,14 +639,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/clip-rule",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-clip-rule",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -610,7 +663,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -623,6 +677,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/color",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#ColorProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -650,7 +707,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -663,6 +721,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/color-interpolation",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#ColorInterpolation",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80",
@@ -670,11 +731,7 @@
               "notes": "Only the default value of `sRGB` is implemented"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80",
-              "partial_implementation": true,
-              "notes": "Only the default value of `sRGB` is implemented"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -692,7 +749,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -704,6 +762,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/color-interpolation",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#ColorInterpolation",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -725,7 +786,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -738,14 +800,15 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/color-interpolation",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#ColorInterpolation",
+            "tags": [
+              "web-features:svg"
+            ],
             "support": {
               "chrome": {
                 "version_added": "≤80"
               },
               "chrome_android": "mirror",
-              "edge": {
-                "version_added": "≤80"
-              },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "≤72"
               },
@@ -761,7 +824,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -775,6 +839,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/color-interpolation-filters",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#ColorInterpolationFiltersProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -796,7 +863,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -809,6 +877,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/cursor",
           "spec_url": "https://drafts.csswg.org/css-ui/#cursor",
+          "tags": [
+            "web-features:cursor"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -837,7 +908,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -853,6 +925,9 @@
             "https://drafts.csswg.org/css-writing-modes/#direction",
             "https://svgwg.org/svg2-draft/text.html#DirectionProperty"
           ],
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -880,7 +955,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -893,6 +969,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/display",
           "spec_url": "https://svgwg.org/svg2-draft/render.html#VisibilityControl",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -920,7 +999,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -933,8 +1013,11 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/dominant-baseline",
           "spec_url": [
-            "https://svgwg.org/svg2-draft/text.html#DominantBaselineProperty",
-            "https://drafts.csswg.org/css-inline/#dominant-baseline-property"
+            "https://drafts.csswg.org/css-inline/#dominant-baseline-property",
+            "https://svgwg.org/svg2-draft/text.html#DominantBaselineProperty"
+          ],
+          "tags": [
+            "web-features:svg"
           ],
           "support": {
             "chrome": {
@@ -957,7 +1040,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -970,16 +1054,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-opacity",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#FillOpacity",
+          "tags": [
+            "web-features:opacity-svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -993,7 +1078,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1006,6 +1092,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#WindingRule",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤15"
@@ -1027,7 +1116,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1040,6 +1130,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/filter",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#FilterProperty",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤53"
@@ -1061,7 +1154,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1074,6 +1168,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/flood-color",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#FloodColorProperty",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -1097,7 +1194,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1110,6 +1208,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/flood-opacity",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#FloodOpacityProperty",
+          "tags": [
+            "web-features:svg-filters"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -1133,7 +1234,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1149,6 +1251,9 @@
             "https://drafts.csswg.org/css-fonts/#generic-font-families",
             "https://drafts.csswg.org/css-fonts/#font-family-prop"
           ],
+          "tags": [
+            "web-features:font-family"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1176,7 +1281,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1189,6 +1295,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/font-size",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-size-prop",
+          "tags": [
+            "web-features:font-size"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1216,7 +1325,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1241,7 +1351,7 @@
             "firefox": [
               {
                 "version_added": "3",
-                "notes": "Before Firefox 40, <code>font-size-adjust: 0</code> was incorrectly interpreted as <code>font-size-adjust: none</code> (<a href='https://bugzil.la/1144885'>bug 1144885</a>)."
+                "notes": "Before Firefox 40, `font-size-adjust: 0` was incorrectly interpreted as `font-size-adjust: none` ([bug 1144885](https://bugzil.la/1144885))."
               },
               {
                 "version_added": "1",
@@ -1262,7 +1372,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1275,10 +1386,13 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/font-stretch",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-stretch-prop",
+          "tags": [
+            "web-features:font-stretch"
+          ],
           "support": {
             "chrome": {
               "version_added": "60",
-              "notes": "A <code>font-stretch</code> definition must be added to the <code>@font-face</code> before this property will function."
+              "notes": "A `font-stretch` definition must be added to the `@font-face` before this property will function."
             },
             "chrome_android": "mirror",
             "edge": {
@@ -1299,7 +1413,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1312,6 +1427,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/font-style",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-style-prop",
+          "tags": [
+            "web-features:font-style"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1322,7 +1440,7 @@
             },
             "firefox": {
               "version_added": "1",
-              "notes": "Before Firefox 44, <code>oblique</code> was not distinguished from <code>italic</code>."
+              "notes": "Before Firefox 44, `oblique` was not distinguished from `italic`."
             },
             "firefox_android": "mirror",
             "ie": {
@@ -1340,7 +1458,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1353,6 +1472,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/font-variant",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-variant-prop",
+          "tags": [
+            "web-features:font-variant"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1367,7 +1489,7 @@
             "firefox_android": "mirror",
             "ie": {
               "version_added": "4",
-              "notes": "Only supports the <code>small-caps</code> and <code>normal</code> keywords."
+              "notes": "Only supports the `small-caps` and `normal` keywords."
             },
             "oculus": "mirror",
             "opera": {
@@ -1381,7 +1503,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1394,6 +1517,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/font-weight",
           "spec_url": "https://drafts.csswg.org/css-fonts/#font-weight-prop",
+          "tags": [
+            "web-features:font-weight"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -1421,7 +1547,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1433,7 +1560,7 @@
       "glyph-orientation-horizontal": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/glyph-orientation-horizontal",
-          "spec_url": "https://www.w3.org/TR/SVG11/text.html#GlyphOrientationHorizontalProperty",
+          "spec_url": "https://svgwg.org/svg2-draft/text.html#GlyphOrientationHorizontalProperty",
           "support": {
             "chrome": {
               "version_added": false
@@ -1455,7 +1582,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1467,7 +1595,7 @@
       "glyph-orientation-vertical": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/glyph-orientation-vertical",
-          "spec_url": "https://www.w3.org/TR/SVG11/text.html#GlyphOrientationVerticalProperty",
+          "spec_url": "https://svgwg.org/svg2-draft/text.html#GlyphOrientationVerticalProperty",
           "support": {
             "chrome": {
               "version_added": false
@@ -1489,7 +1617,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1505,6 +1634,9 @@
             "https://drafts.csswg.org/css-images/#the-image-rendering",
             "https://svgwg.org/svg2-draft/painting.html#ImageRendering"
           ],
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "13"
@@ -1528,7 +1660,8 @@
             "samsunginternet_android": "mirror",
             "webview_android": {
               "version_added": "3"
-            }
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1541,6 +1674,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/letter-spacing",
           "spec_url": "https://drafts.csswg.org/css-text/#letter-spacing-property",
+          "tags": [
+            "web-features:letter-spacing"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1568,7 +1704,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1581,6 +1718,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/lighting-color",
           "spec_url": "https://drafts.fxtf.org/filter-effects/#LightingColorProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "5"
@@ -1604,7 +1744,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1617,14 +1758,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/marker-end",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#VertexMarkerProperties",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -1640,7 +1782,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1653,14 +1796,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/marker-mid",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#VertexMarkerProperties",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -1676,7 +1820,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1689,14 +1834,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/marker-start",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#VertexMarkerProperties",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -1712,7 +1858,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1725,6 +1872,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/mask",
           "spec_url": "https://drafts.fxtf.org/css-masking/#the-mask",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": [
               {
@@ -1733,7 +1883,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "1",
-                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment'><code>-webkit-mask-attachment</code></a> property."
+                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard [`-webkit-mask-attachment`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment) property."
               },
               {
                 "version_added": "1",
@@ -1750,7 +1900,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "79",
-                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment'><code>-webkit-mask-attachment</code></a> property."
+                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard [`-webkit-mask-attachment`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment) property."
               },
               {
                 "version_added": "79",
@@ -1771,7 +1921,7 @@
                 "version_added": "2",
                 "version_removed": "53",
                 "partial_implementation": true,
-                "notes": "Only supports <code>mask: url(file.svg#mask_id)</code> or <code>mask: url(#mask_id)</code>, where the URL is a reference to an SVG <code>&lt;mask&gt;</code> element."
+                "notes": "Only supports `mask: url(file.svg#mask_id)` or `mask: url(#mask_id)`, where the URL is a reference to an SVG `&lt;mask&gt;` element."
               }
             ],
             "firefox_android": "mirror",
@@ -1788,7 +1938,7 @@
               {
                 "prefix": "-webkit-",
                 "version_added": "3.1",
-                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment'><code>-webkit-mask-attachment</code></a> property."
+                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard [`-webkit-mask-attachment`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment) property."
               },
               {
                 "version_added": "3.1",
@@ -1805,16 +1955,17 @@
               },
               {
                 "prefix": "-webkit-",
-                "version_added": "2",
-                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard <a href='https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment'><code>-webkit-mask-attachment</code></a> property."
+                "version_added": "3",
+                "notes": "The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard [`-webkit-mask-attachment`](https://developer.mozilla.org/docs/Web/CSS/-webkit-mask-attachment) property."
               },
               {
-                "version_added": "2",
+                "version_added": "3",
                 "version_removed": "120",
                 "partial_implementation": true,
                 "notes": "While the property is recognized, values applied to it don't have any effect."
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1830,6 +1981,9 @@
             "https://drafts.csswg.org/css-color/#transparency",
             "https://svgwg.org/svg2-draft/render.html#ObjectAndGroupOpacityProperties"
           ],
+          "tags": [
+            "web-features:opacity"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1871,7 +2025,8 @@
             ],
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1884,6 +2039,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/overflow",
           "spec_url": "https://svgwg.org/svg2-draft/render.html#OverflowAndClipProperties",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1909,7 +2067,52 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "paint-order": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/paint-order",
+          "spec_url": "https://svgwg.org/svg2-draft/painting.html#PaintOrder",
+          "tags": [
+            "web-features:paint-order"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "≤73"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "≤66"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": {
+              "version_added": false
+            },
+            "safari": {
+              "version_added": "≤12"
+            },
+            "safari_ios": {
+              "version_added": false
+            },
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": false
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1922,6 +2125,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/pointer-events",
           "spec_url": "https://svgwg.org/svg2-draft/interact.html#PointerEventsProp",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -1948,8 +2154,9 @@
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
             "webview_android": {
-              "version_added": "2"
-            }
+              "version_added": "3"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1962,14 +2169,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/shape-rendering",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#ShapeRendering",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -1985,7 +2193,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -1998,28 +2207,96 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stop-color",
           "spec_url": "https://svgwg.org/svg2-draft/pservers.html#StopColorProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
-              "version_added": "≤80"
+              "version_added": "1"
             },
             "chrome_android": "mirror",
-            "edge": "mirror",
+            "edge": {
+              "version_added": "12"
+            },
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1.5"
             },
             "firefox_android": "mirror",
             "ie": {
-              "version_added": false
+              "version_added": "9"
             },
             "oculus": "mirror",
-            "opera": "mirror",
-            "opera_android": "mirror",
+            "opera": {
+              "version_added": "9"
+            },
+            "opera_android": {
+              "version_added": "10.1"
+            },
             "safari": {
-              "version_added": "≤13.1"
+              "version_added": "3"
+            },
+            "safari_ios": {
+              "version_added": "3"
             },
-            "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": {
+              "version_added": "3"
+            },
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "stop-opacity": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stop-opacity",
+          "spec_url": "https://svgwg.org/svg2-draft/pservers.html#StopOpacityProperty",
+          "tags": [
+            "web-features:svg"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "1"
+            },
+            "chrome_android": "mirror",
+            "edge": {
+              "version_added": "12"
+            },
+            "firefox": {
+              "version_added": "1.5"
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": "9"
+            },
+            "oculus": "mirror",
+            "opera": {
+              "version_added": "9"
+            },
+            "opera_android": {
+              "version_added": "10.1"
+            },
+            "safari": {
+              "version_added": "3"
+            },
+            "safari_ios": [
+              {
+                "version_added": "14"
+              },
+              {
+                "version_added": "3",
+                "version_removed": "11"
+              }
+            ],
+            "samsunginternet_android": "mirror",
+            "webview_android": {
+              "version_added": "3"
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2032,14 +2309,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingStrokePaint",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -2055,7 +2333,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2065,8 +2344,11 @@
         },
         "context-stroke": {
           "__compat": {
-            "description": "<code>context-stroke</code> value",
+            "description": "`context-stroke` value",
             "spec_url": "https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint",
+            "tags": [
+              "web-features:context-fill-stroke"
+            ],
             "support": {
               "chrome": {
                 "version_added": "124"
@@ -2088,7 +2370,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -2102,6 +2385,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#StrokeDashing",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -2109,7 +2395,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2123,7 +2409,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2136,16 +2423,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#StrokeDashoffsetProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2159,7 +2447,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2172,6 +2461,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#LineCaps",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -2179,7 +2471,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2193,7 +2485,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2206,6 +2499,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#LineJoin",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
@@ -2213,7 +2509,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2227,7 +2523,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2240,16 +2537,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-miterlimit",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#StrokeMiterlimitProperty",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2263,7 +2561,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2276,16 +2575,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-opacity",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#StrokeOpacity",
+          "tags": [
+            "web-features:opacity-svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2299,7 +2599,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2312,16 +2613,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-width",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#StrokeWidth",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
-              "version_added": "≤72"
+              "version_added": "1"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -2335,7 +2637,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2348,14 +2651,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/text-anchor",
           "spec_url": "https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -2371,7 +2675,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2387,6 +2692,9 @@
             "https://drafts.csswg.org/css-text-decor/#text-decoration-property",
             "https://svgwg.org/svg2-draft/text.html#TextDecorationProperties"
           ],
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2414,7 +2722,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2425,6 +2734,13 @@
       },
       "text-overflow": {
         "__compat": {
+          "spec_url": [
+            "https://drafts.csswg.org/css-overflow-3/#text-overflow",
+            "https://svgwg.org/svg2-draft/text.html#TextOverflowProperty"
+          ],
+          "tags": [
+            "web-features:text-overflow"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2435,7 +2751,7 @@
             },
             "firefox": {
               "version_added": "7",
-              "notes": "Until Firefox 10, handling of <code>text-overflow</code> on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as <code>text-overflow: ellipsis;</code>), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction."
+              "notes": "Until Firefox 10, handling of `text-overflow` on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as `text-overflow: ellipsis;`), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction."
             },
             "firefox_android": "mirror",
             "ie": [
@@ -2473,7 +2789,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2486,12 +2803,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/text-rendering",
           "spec_url": "https://svgwg.org/svg2-draft/painting.html#TextRendering",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "4",
               "notes": [
                 "This property is only supported on Windows and Linux.",
-                "Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See <a href='https://crbug.com/114719'>bug 114719</a>, <a href='https://crbug.com/51973'>bug 51973</a>, <a href='https://crbug.com/55458'>bug 55458</a>, <a href='https://crbug.com/149548'>bug 149548</a>."
+                "Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See [bug 40156511](https://crbug.com/40156511), [bug 40430936](https://crbug.com/40430936), [bug 40444347](https://crbug.com/40444347), [bug 40286561](https://crbug.com/40286561)."
               ]
             },
             "chrome_android": "mirror",
@@ -2500,7 +2820,7 @@
               "version_added": "1",
               "notes": [
                 "This property is only supported on Windows and Linux.",
-                "The <code>optimizeSpeed</code> option has no effect on Firefox 4 because the standard code for text rendering is already fast and there is not a faster code path at this time. See <a href='https://bugzil.la/595688'>bug 595688</a> for details."
+                "The `optimizeSpeed` option has no effect on Firefox 4 because the standard code for text rendering is already fast and there is not a faster code path at this time. See [bug 595688](https://bugzil.la/595688) for details."
               ]
             },
             "firefox_android": {
@@ -2526,8 +2846,9 @@
             },
             "webview_android": {
               "version_added": "3",
-              "notes": "From version 3 to 4.3, there is a serious bug where <code>text-rendering: optimizeLegibility</code> causes custom web fonts to not render. This was fixed in version 4.4."
-            }
+              "notes": "From version 3 to 4.3, there is a serious bug where `text-rendering: optimizeLegibility` causes custom web fonts to not render. This was fixed in version 4.4."
+            },
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2543,6 +2864,9 @@
             "https://drafts.csswg.org/css-transforms/#svg-transform",
             "https://svgwg.org/svg2-draft/coords.html#TransformProperty"
           ],
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": [
               {
@@ -2581,7 +2905,7 @@
             "ie": [
               {
                 "version_added": "10",
-                "notes": "Internet Explorer does not support the global values <code>initial</code> and <code>unset</code>."
+                "notes": "Internet Explorer does not support the global values `initial` and `unset`."
               },
               {
                 "prefix": "-webkit-",
@@ -2590,7 +2914,7 @@
               {
                 "prefix": "-ms-",
                 "version_added": "9",
-                "notes": "Internet Explorer 5.5 or later supports a proprietary <a href='https://msdn.microsoft.com/en-us/library/ms533014(VS.85,loband).aspx'>Matrix Filter</a> which can be used to achieve a similar effect."
+                "notes": "Internet Explorer 5.5 or later supports a proprietary [Matrix Filter](https://msdn.microsoft.com/en-us/library/ms533014(VS.85,loband).aspx) which can be used to achieve a similar effect."
               }
             ],
             "oculus": "mirror",
@@ -2655,10 +2979,10 @@
               },
               {
                 "prefix": "-webkit-",
-                "version_added": "2",
-                "notes": "Android 2.3 has a bug where input forms will \"jump\" when typing, if any container element has a <code>-webkit-transform</code>."
+                "version_added": "3"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2674,6 +2998,9 @@
             "https://drafts.csswg.org/css-transforms/#transform-origin-property",
             "https://svgwg.org/svg2-draft/styling.html#PresentationAttributes"
           ],
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤83"
@@ -2693,11 +3020,12 @@
             "safari": {
               "version_added": "≤13.1",
               "partial_implementation": true,
-              "notes": "Does not work with <code>transform</code> SVG presentation attribute. Only works with <code>transform</code> CSS property. See <a href='https://webkit.org/b/201854'>bug 201854</a>."
+              "notes": "Does not work with `transform` SVG presentation attribute. Only works with `transform` CSS property. See [bug 201854](https://webkit.org/b/201854)."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2710,6 +3038,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/unicode-bidi",
           "spec_url": "https://drafts.csswg.org/css-writing-modes/#unicode-bidi",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "2"
@@ -2737,7 +3068,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2750,14 +3082,15 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/vector-effect",
           "spec_url": "https://svgwg.org/svg2-draft/coords.html#VectorEffects",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "≤80"
             },
             "chrome_android": "mirror",
-            "edge": {
-              "version_added": "≤80"
-            },
+            "edge": "mirror",
             "firefox": {
               "version_added": "≤72"
             },
@@ -2773,7 +3106,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2786,6 +3120,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/visibility",
           "spec_url": "https://svgwg.org/svg2-draft/render.html#VisibilityControl",
+          "tags": [
+            "web-features:svg"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2801,9 +3138,9 @@
             "ie": {
               "version_added": "4",
               "notes": [
-                "Internet Explorer doesn't support <code>visibility: initial</code>.",
-                "Internet Explorer doesn't support <code>visibility: unset</code>.",
-                "Up to Internet Explorer 7, descendants of <code>hidden</code> elements will still be invisible even if they have <code>visibility</code> set to <code>visible</code>."
+                "Internet Explorer doesn't support `visibility: initial`.",
+                "Internet Explorer doesn't support `visibility: unset`.",
+                "Up to Internet Explorer 7, descendants of `hidden` elements will still be invisible even if they have `visibility` set to `visible`."
               ]
             },
             "oculus": "mirror",
@@ -2818,7 +3155,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2829,6 +3167,10 @@
       },
       "white-space": {
         "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-text-3/#white-space-property",
+          "tags": [
+            "web-features:white-space"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2856,7 +3198,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2869,6 +3212,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/word-spacing",
           "spec_url": "https://drafts.csswg.org/css-text/#word-spacing-property",
+          "tags": [
+            "web-features:word-spacing"
+          ],
           "support": {
             "chrome": {
               "version_added": "1"
@@ -2894,7 +3240,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -2910,6 +3257,9 @@
             "https://drafts.csswg.org/css-writing-modes/#block-flow",
             "https://svgwg.org/svg2-draft/text.html#WritingModeProperty"
           ],
+          "tags": [
+            "web-features:writing-mode"
+          ],
           "support": {
             "chrome": [
               {
@@ -2968,7 +3318,8 @@
                 "prefix": "-webkit-",
                 "version_added": "3"
               }
-            ]
+            ],
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/utils/walk.test.ts b/utils/walk.test.ts
index 7c664c5a45c485..fc99ba742905ae 100644
--- a/utils/walk.test.ts
+++ b/utils/walk.test.ts
@@ -42,7 +42,7 @@ describe('walk()', () => {
 
   it('should walk a single tree', () => {
     const results = Array.from(walk('api.Notification'));
-    assert.equal(results.length, 27);
+    assert.equal(results.length, 28);
     assert.equal(results[0].path, 'api.Notification');
     assert.equal(results[1].path, 'api.Notification.Notification');
   });
@@ -51,7 +51,7 @@ describe('walk()', () => {
     const results = Array.from(
       walk(['api.Notification', 'css.properties.color']),
     );
-    assert.equal(results.length, 28);
+    assert.equal(results.length, 29);
     assert.equal(results[0].path, 'api.Notification');
     assert.equal(results[results.length - 1].path, 'css.properties.color');
   });
diff --git a/webassembly/BigInt-to-i64-integration.json b/webassembly/BigInt-to-i64-integration.json
index 8c56743e8639f8..14c9dbd3984634 100644
--- a/webassembly/BigInt-to-i64-integration.json
+++ b/webassembly/BigInt-to-i64-integration.json
@@ -3,6 +3,9 @@
     "BigInt-to-i64-integration": {
       "__compat": {
         "spec_url": "https://webassembly.github.io/spec/js-api/#ref-for-syntax-numtype①⓪",
+        "tags": [
+          "web-features:wasm-bigint"
+        ],
         "support": {
           "chrome": {
             "version_added": "85"
@@ -24,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/api.json b/webassembly/api.json
index 5357f5577fc922..1a103efacd2eed 100644
--- a/webassembly/api.json
+++ b/webassembly/api.json
@@ -4,6 +4,9 @@
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface",
         "spec_url": "https://webassembly.github.io/spec/js-api/#webassembly-namespace",
+        "tags": [
+          "web-features:wasm"
+        ],
         "support": {
           "chrome": {
             "version_added": "57"
@@ -33,7 +36,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
@@ -43,9 +47,12 @@
       },
       "compile_static": {
         "__compat": {
-          "description": "<code>compile()</code> static method",
+          "description": "`compile()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/compile_static",
           "spec_url": "https://webassembly.github.io/spec/js-api/#dom-webassembly-compile",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -75,7 +82,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -86,9 +94,12 @@
       },
       "compileStreaming_static": {
         "__compat": {
-          "description": "<code>compileStreaming()</code> static method",
+          "description": "`compileStreaming()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/compileStreaming_static",
           "spec_url": "https://webassembly.github.io/spec/web-api/#dom-webassembly-compilestreaming",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -120,7 +131,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -131,9 +143,12 @@
       },
       "instantiate_static": {
         "__compat": {
-          "description": "<code>instantiate()</code> static method",
+          "description": "`instantiate()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/instantiate_static",
           "spec_url": "https://webassembly.github.io/spec/js-api/#dom-webassembly-instantiate",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -163,7 +178,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -174,9 +190,12 @@
       },
       "instantiateStreaming_static": {
         "__compat": {
-          "description": "<code>instantiateStreaming()</code> static method",
+          "description": "`instantiateStreaming()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/instantiateStreaming_static",
           "spec_url": "https://webassembly.github.io/spec/web-api/#dom-webassembly-instantiatestreaming",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "61"
@@ -208,7 +227,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -219,9 +239,12 @@
       },
       "validate_static": {
         "__compat": {
-          "description": "<code>validate()</code> static method",
+          "description": "`validate()` static method",
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/validate_static",
           "spec_url": "https://webassembly.github.io/spec/js-api/#dom-webassembly-validate",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -251,7 +274,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webassembly/api/CompileError.json b/webassembly/api/CompileError.json
index a63e265fd4c253..98937b254296e4 100644
--- a/webassembly/api/CompileError.json
+++ b/webassembly/api/CompileError.json
@@ -8,6 +8,9 @@
             "https://webassembly.github.io/spec/js-api/#exceptiondef-compileerror",
             "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-native-error-types-used-in-this-standard"
           ],
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -37,7 +40,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,12 +51,15 @@
         },
         "CompileError": {
           "__compat": {
-            "description": "<code>CompileError()</code> constructor",
+            "description": "`CompileError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/CompileError/CompileError",
             "spec_url": [
               "https://webassembly.github.io/spec/js-api/#exceptiondef-compileerror",
               "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-nativeerror-constructors"
             ],
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -82,7 +89,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/api/Exception.json b/webassembly/api/Exception.json
index df7ffa55fbe44a..4c62c171ae578e 100644
--- a/webassembly/api/Exception.json
+++ b/webassembly/api/Exception.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Exception",
           "spec_url": "https://webassembly.github.io/exception-handling/js-api/#runtime-exceptions",
+          "tags": [
+            "web-features:wasm-exception-handling"
+          ],
           "support": {
             "chrome": {
               "version_added": "95"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,9 +46,12 @@
         },
         "Exception": {
           "__compat": {
-            "description": "<code>Exception()</code> constructor",
+            "description": "`Exception()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Exception/Exception",
             "spec_url": "https://webassembly.github.io/exception-handling/js-api/#dom-exception-exception",
+            "tags": [
+              "web-features:wasm-exception-handling"
+            ],
             "support": {
               "chrome": {
                 "version_added": "95"
@@ -72,7 +79,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -82,8 +90,11 @@
           },
           "options_parameter_traceStack": {
             "__compat": {
-              "description": "<code>options.traceStack</code> parameter",
+              "description": "`options.traceStack` parameter",
               "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Exception/Exception",
+              "tags": [
+                "web-features:wasm-exception-handling"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "95"
@@ -111,7 +122,8 @@
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
-                "webview_android": "mirror"
+                "webview_android": "mirror",
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -125,6 +137,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Exception/getArg",
             "spec_url": "https://webassembly.github.io/exception-handling/js-api/#dom-exception-getarg",
+            "tags": [
+              "web-features:wasm-exception-handling"
+            ],
             "support": {
               "chrome": {
                 "version_added": "95"
@@ -152,7 +167,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -165,6 +181,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Exception/is",
             "spec_url": "https://webassembly.github.io/exception-handling/js-api/#dom-exception-is",
+            "tags": [
+              "web-features:wasm-exception-handling"
+            ],
             "support": {
               "chrome": {
                 "version_added": "95"
@@ -192,7 +211,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -205,6 +225,9 @@
           "__compat": {
             "description": "Stack trace",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Exception",
+            "tags": [
+              "web-features:wasm-exception-handling"
+            ],
             "support": {
               "chrome": {
                 "version_added": "95"
@@ -232,7 +255,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/api/Global.json b/webassembly/api/Global.json
index 8db82341f6d768..fdfe8f77c9013f 100644
--- a/webassembly/api/Global.json
+++ b/webassembly/api/Global.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Global",
           "spec_url": "https://webassembly.github.io/spec/js-api/#globals",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "69"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,18 +46,21 @@
         },
         "Global": {
           "__compat": {
-            "description": "<code>Global()</code> constructor",
+            "description": "`Global()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Global/Global",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-global-global",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69",
-                "notes": "Constructing a <code>Global</code> with a value of <code>v128</code> produces a <code>TypeError</code>."
+                "notes": "Constructing a `Global` with a value of `v128` produces a `TypeError`."
               },
               "chrome_android": "mirror",
               "deno": {
                 "version_added": "1.0",
-                "notes": "Constructing a <code>Global</code> with a value of <code>v128</code> produces a <code>TypeError</code>."
+                "notes": "Constructing a `Global` with a value of `v128` produces a `TypeError`."
               },
               "edge": "mirror",
               "firefox": {
@@ -65,7 +72,7 @@
               },
               "nodejs": {
                 "version_added": "11.0.0",
-                "notes": "Constructing a <code>Global</code> with a value of <code>v128</code> produces a <code>TypeError</code>."
+                "notes": "Constructing a `Global` with a value of `v128` produces a `TypeError`."
               },
               "oculus": "mirror",
               "opera": "mirror",
@@ -75,7 +82,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -87,6 +95,9 @@
         "value": {
           "__compat": {
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-global-value",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -114,7 +125,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -126,6 +138,9 @@
         "valueOf": {
           "__compat": {
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-global-valueof",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "69"
@@ -153,7 +168,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/api/Instance.json b/webassembly/api/Instance.json
index f70925ab7053bf..a65df24f5f2e3b 100644
--- a/webassembly/api/Instance.json
+++ b/webassembly/api/Instance.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Instance",
           "spec_url": "https://webassembly.github.io/spec/js-api/#instances",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -34,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,9 +48,12 @@
         },
         "Instance": {
           "__compat": {
-            "description": "<code>Instance()</code> constructor",
+            "description": "`Instance()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Instance/Instance",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-instance-instance",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -76,7 +83,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -89,6 +97,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Instance/exports",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-instance-exports",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -118,7 +129,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/api/LinkError.json b/webassembly/api/LinkError.json
index 573dc602be224a..6c6892fc3b2cbb 100644
--- a/webassembly/api/LinkError.json
+++ b/webassembly/api/LinkError.json
@@ -8,6 +8,9 @@
             "https://webassembly.github.io/spec/js-api/#exceptiondef-linkerror",
             "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-native-error-types-used-in-this-standard"
           ],
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -37,7 +40,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,12 +51,15 @@
         },
         "LinkError": {
           "__compat": {
-            "description": "<code>LinkError()</code> constructor",
+            "description": "`LinkError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/LinkError/LinkError",
             "spec_url": [
               "https://webassembly.github.io/spec/js-api/#exceptiondef-linkerror",
               "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-nativeerror-constructors"
             ],
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -82,7 +89,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/api/Memory.json b/webassembly/api/Memory.json
index ea8a3dd103264b..891fa98f4ce5ed 100644
--- a/webassembly/api/Memory.json
+++ b/webassembly/api/Memory.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Memory",
           "spec_url": "https://webassembly.github.io/spec/js-api/#memories",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -34,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,9 +48,12 @@
         },
         "Memory": {
           "__compat": {
-            "description": "<code>Memory()</code> constructor",
+            "description": "`Memory()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Memory/Memory",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-memory-memory",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -76,7 +83,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -86,8 +94,11 @@
           },
           "shared": {
             "__compat": {
-              "description": "<code>shared</code> flag",
+              "description": "`shared` flag",
               "spec_url": "https://webassembly.github.io/threads/js-api/#dom-memorydescriptor-shared",
+              "tags": [
+                "web-features:wasm-threads"
+              ],
               "support": {
                 "chrome": {
                   "version_added": "74"
@@ -120,13 +131,14 @@
                 "opera_android": "mirror",
                 "safari": {
                   "version_added": "15.2",
-                  "notes": "Shared <code>WebAssembly.Memory</code> is gated behind COOP/COEP. For more detail, read <a href='https://web.dev/coop-coep/'>Making your website \"cross-origin isolated\" using COOP and COEP</a>."
+                  "notes": "Shared `WebAssembly.Memory` is gated behind COOP/COEP. For more detail, read [Making your website \"cross-origin isolated\" using COOP and COEP](https://web.dev/coop-coep/)."
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
                 "webview_android": {
                   "version_added": false
-                }
+                },
+                "webview_ios": "mirror"
               },
               "status": {
                 "experimental": false,
@@ -140,6 +152,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Memory/buffer",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-memory-buffer",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -169,7 +184,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -182,6 +198,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Memory/grow",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-memory-grow",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -211,7 +230,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/api/Module.json b/webassembly/api/Module.json
index 07f70207e8713f..3d0ceaab9cab38 100644
--- a/webassembly/api/Module.json
+++ b/webassembly/api/Module.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Module",
           "spec_url": "https://webassembly.github.io/spec/js-api/#modules",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -34,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -44,9 +48,12 @@
         },
         "Module": {
           "__compat": {
-            "description": "<code>Module()</code> constructor",
+            "description": "`Module()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Module/Module",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-module-module",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -76,7 +83,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -87,9 +95,12 @@
         },
         "customSections_static": {
           "__compat": {
-            "description": "<code>customSections()</code> static method",
+            "description": "`customSections()` static method",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Module/customSections_static",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-module-customsections",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -119,7 +130,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -130,9 +142,12 @@
         },
         "exports_static": {
           "__compat": {
-            "description": "<code>exports()</code> static method",
+            "description": "`exports()` static method",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Module/exports_static",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-module-exports",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -162,7 +177,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -173,9 +189,12 @@
         },
         "imports_static": {
           "__compat": {
-            "description": "<code>imports()</code> static method",
+            "description": "`imports()` static method",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Module/imports_static",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-module-imports",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -205,7 +224,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/api/RuntimeError.json b/webassembly/api/RuntimeError.json
index 6f26674410f228..2f6eaebf7c2f6d 100644
--- a/webassembly/api/RuntimeError.json
+++ b/webassembly/api/RuntimeError.json
@@ -8,6 +8,9 @@
             "https://webassembly.github.io/spec/js-api/#exceptiondef-runtimeerror",
             "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-native-error-types-used-in-this-standard"
           ],
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -37,7 +40,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -47,12 +51,15 @@
         },
         "RuntimeError": {
           "__compat": {
-            "description": "<code>RuntimeError()</code> constructor",
+            "description": "`RuntimeError()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/RuntimeError/RuntimeError",
             "spec_url": [
               "https://webassembly.github.io/spec/js-api/#exceptiondef-runtimeerror",
               "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-nativeerror-constructors"
             ],
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -82,7 +89,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/api/Table.json b/webassembly/api/Table.json
index 28ce17c90ca8d6..7f5aaa13677bba 100644
--- a/webassembly/api/Table.json
+++ b/webassembly/api/Table.json
@@ -1,4 +1,3 @@
-
 {
   "webassembly": {
     "api": {
@@ -6,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Table",
           "spec_url": "https://webassembly.github.io/spec/js-api/#tables",
+          "tags": [
+            "web-features:wasm"
+          ],
           "support": {
             "chrome": {
               "version_added": "57"
@@ -35,7 +37,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -45,9 +48,12 @@
         },
         "Table": {
           "__compat": {
-            "description": "<code>Table()</code> constructor",
+            "description": "`Table()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Table/Table",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-table-table",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -77,7 +83,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -90,6 +97,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Table/get",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-table-get",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -119,7 +129,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -132,6 +143,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Table/grow",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-table-grow",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -161,7 +175,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -174,6 +189,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Table/length",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-table-length",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -203,7 +221,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -216,6 +235,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Table/set",
             "spec_url": "https://webassembly.github.io/spec/js-api/#dom-table-set",
+            "tags": [
+              "web-features:wasm"
+            ],
             "support": {
               "chrome": {
                 "version_added": "57"
@@ -245,7 +267,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/api/Tag.json b/webassembly/api/Tag.json
index 1827249860b9f3..eae465d76f0333 100644
--- a/webassembly/api/Tag.json
+++ b/webassembly/api/Tag.json
@@ -5,6 +5,9 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Tag",
           "spec_url": "https://webassembly.github.io/exception-handling/js-api/#tag",
+          "tags": [
+            "web-features:wasm-exception-handling"
+          ],
           "support": {
             "chrome": {
               "version_added": "95"
@@ -32,7 +35,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
@@ -42,9 +46,12 @@
         },
         "Tag": {
           "__compat": {
-            "description": "<code>Tag()</code> constructor",
+            "description": "`Tag()` constructor",
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Tag/Tag",
             "spec_url": "https://webassembly.github.io/exception-handling/js-api/#dom-tag-tag",
+            "tags": [
+              "web-features:wasm-exception-handling"
+            ],
             "support": {
               "chrome": {
                 "version_added": "95"
@@ -72,7 +79,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
@@ -85,6 +93,9 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/WebAssembly/JavaScript_interface/Tag/type",
             "spec_url": "https://webassembly.github.io/exception-handling/js-api/#dom-tag-type",
+            "tags": [
+              "web-features:wasm-exception-handling"
+            ],
             "support": {
               "chrome": {
                 "version_added": false
@@ -112,7 +123,8 @@
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
-              "webview_android": "mirror"
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
             },
             "status": {
               "experimental": false,
diff --git a/webassembly/bulk-memory-operations.json b/webassembly/bulk-memory-operations.json
index ea80474b1f16a4..ee90c2c6767d94 100644
--- a/webassembly/bulk-memory-operations.json
+++ b/webassembly/bulk-memory-operations.json
@@ -3,14 +3,15 @@
     "bulk-memory-operations": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/spec/blob/main/proposals/bulk-memory-operations/Overview.md",
+        "tags": [
+          "web-features:wasm-bulk-memory"
+        ],
         "support": {
           "chrome": {
-            "version_added": "≤80"
+            "version_added": "75"
           },
           "chrome_android": "mirror",
-          "edge": {
-            "version_added": "≤80"
-          },
+          "edge": "mirror",
           "firefox": {
             "version_added": "78"
           },
@@ -26,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/exception-handling.json b/webassembly/exception-handling.json
index 08e008054104eb..5da0b0d611f3c5 100644
--- a/webassembly/exception-handling.json
+++ b/webassembly/exception-handling.json
@@ -2,7 +2,11 @@
   "webassembly": {
     "exception-handling": {
       "__compat": {
-        "spec_url": "https://github.com/WebAssembly/exception-handling/blob/main/proposals/exception-handling/Exceptions.md",
+        "description": "Legacy exception handling",
+        "spec_url": "https://github.com/WebAssembly/exception-handling/blob/main/proposals/exception-handling/legacy/Exceptions.md",
+        "tags": [
+          "web-features:wasm-exception-handling"
+        ],
         "support": {
           "chrome": {
             "version_added": "95"
@@ -24,7 +28,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/exceptionsFinal.json b/webassembly/exceptionsFinal.json
new file mode 100644
index 00000000000000..0eb9db248760ad
--- /dev/null
+++ b/webassembly/exceptionsFinal.json
@@ -0,0 +1,39 @@
+{
+  "webassembly": {
+    "exceptionsFinal": {
+      "__compat": {
+        "description": "Exception handling with `exnref`",
+        "spec_url": "https://github.com/WebAssembly/exception-handling/blob/main/proposals/exception-handling/Exceptions.md",
+        "support": {
+          "chrome": {
+            "version_added": false
+          },
+          "chrome_android": "mirror",
+          "edge": "mirror",
+          "firefox": {
+            "version_added": "131"
+          },
+          "firefox_android": "mirror",
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
+        },
+        "status": {
+          "experimental": true,
+          "standard_track": true,
+          "deprecated": false
+        }
+      }
+    }
+  }
+}
diff --git a/webassembly/extended-constant-expressions.json b/webassembly/extended-constant-expressions.json
index d049199e39dc03..1ea20941882cc3 100644
--- a/webassembly/extended-constant-expressions.json
+++ b/webassembly/extended-constant-expressions.json
@@ -3,6 +3,9 @@
     "extended-constant-expressions": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/extended-const/blob/main/proposals/extended-const/Overview.md",
+        "tags": [
+          "web-features:wasm-extended-constant-expressions"
+        ],
         "support": {
           "chrome": {
             "version_added": "114"
@@ -24,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/fixed-width-SIMD.json b/webassembly/fixed-width-SIMD.json
index b2e005a1d8a7b1..dc6b45c08d675a 100644
--- a/webassembly/fixed-width-SIMD.json
+++ b/webassembly/fixed-width-SIMD.json
@@ -27,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/garbage-collection.json b/webassembly/garbage-collection.json
index fec4f48d2bf0dd..fb323b12b3cd93 100644
--- a/webassembly/garbage-collection.json
+++ b/webassembly/garbage-collection.json
@@ -3,6 +3,9 @@
     "garbage-collection": {
       "__compat": {
         "spec_url": "https://webassembly.github.io/gc/core/bikeshed/#garbage-collection①",
+        "tags": [
+          "web-features:wasm-garbage-collection"
+        ],
         "support": {
           "chrome": {
             "version_added": "119"
@@ -20,11 +23,12 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": "18.2"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/jsStringBuiltins.json b/webassembly/jsStringBuiltins.json
new file mode 100644
index 00000000000000..7156205a00f27c
--- /dev/null
+++ b/webassembly/jsStringBuiltins.json
@@ -0,0 +1,40 @@
+{
+  "webassembly": {
+    "jsStringBuiltins": {
+      "__compat": {
+        "spec_url": "https://github.com/WebAssembly/js-string-builtins/blob/main/proposals/js-string-builtins/Overview.md",
+        "support": {
+          "chrome": {
+            "version_added": "130"
+          },
+          "chrome_android": {
+            "version_added": false
+          },
+          "edge": "mirror",
+          "firefox": {
+            "version_added": "134"
+          },
+          "firefox_android": "mirror",
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
+        },
+        "status": {
+          "experimental": false,
+          "standard_track": true,
+          "deprecated": false
+        }
+      }
+    }
+  }
+}
diff --git a/webassembly/memory64.json b/webassembly/memory64.json
new file mode 100644
index 00000000000000..a5f06689c6b633
--- /dev/null
+++ b/webassembly/memory64.json
@@ -0,0 +1,38 @@
+{
+  "webassembly": {
+    "memory64": {
+      "__compat": {
+        "spec_url": "https://github.com/WebAssembly/memory64/blob/main/proposals/memory64/Overview.md",
+        "support": {
+          "chrome": {
+            "version_added": false
+          },
+          "chrome_android": "mirror",
+          "edge": "mirror",
+          "firefox": {
+            "version_added": "134"
+          },
+          "firefox_android": "mirror",
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
+        },
+        "status": {
+          "experimental": true,
+          "standard_track": true,
+          "deprecated": false
+        }
+      }
+    }
+  }
+}
diff --git a/webassembly/multi-value.json b/webassembly/multi-value.json
index 45b580f1d57b2a..03bf7b91ad2cb2 100644
--- a/webassembly/multi-value.json
+++ b/webassembly/multi-value.json
@@ -3,6 +3,9 @@
     "multi-value": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/spec/blob/main/proposals/multi-value/Overview.md",
+        "tags": [
+          "web-features:wasm-multi-value"
+        ],
         "support": {
           "chrome": {
             "version_added": "86"
@@ -24,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/multiMemory.json b/webassembly/multiMemory.json
index 6182bab5a7b45d..883256c55eab3d 100644
--- a/webassembly/multiMemory.json
+++ b/webassembly/multiMemory.json
@@ -3,6 +3,9 @@
     "multiMemory": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/multi-memory/blob/main/proposals/multi-memory/Overview.md",
+        "tags": [
+          "web-features:wasm-multi-memory"
+        ],
         "support": {
           "chrome": {
             "version_added": "120"
@@ -24,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/mutable-globals.json b/webassembly/mutable-globals.json
index 5a9b49109ea3f1..39e9b35b455c69 100644
--- a/webassembly/mutable-globals.json
+++ b/webassembly/mutable-globals.json
@@ -3,16 +3,17 @@
     "mutable-globals": {
       "__compat": {
         "spec_url": "https://webassembly.github.io/spec/js-api/#dom-globaldescriptor-mutable",
+        "tags": [
+          "web-features:wasm-mutable-globals"
+        ],
         "support": {
           "chrome": {
-            "version_added": "≤80"
+            "version_added": "69"
           },
           "chrome_android": "mirror",
-          "edge": {
-            "version_added": "≤80"
-          },
+          "edge": "mirror",
           "firefox": {
-            "version_added": "≤72"
+            "version_added": "62"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -26,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/non-trapping-float-to-int-conversions.json b/webassembly/non-trapping-float-to-int-conversions.json
index 1f080479e67c04..71e9b26a819aea 100644
--- a/webassembly/non-trapping-float-to-int-conversions.json
+++ b/webassembly/non-trapping-float-to-int-conversions.json
@@ -3,16 +3,19 @@
     "non-trapping-float-to-int-conversions": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/spec/blob/main/proposals/nontrapping-float-to-int-conversion/Overview.md",
+        "tags": [
+          "web-features:wasm-non-trapping-float-to-int"
+        ],
         "support": {
           "chrome": {
-            "version_added": "≤80"
+            "version_added": "75"
           },
           "chrome_android": "mirror",
           "edge": {
-            "version_added": "≤80"
+            "version_added": "18"
           },
           "firefox": {
-            "version_added": "≤72"
+            "version_added": "64"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/reference-types.json b/webassembly/reference-types.json
index 8b0cc47803d086..bbd67d28fb345e 100644
--- a/webassembly/reference-types.json
+++ b/webassembly/reference-types.json
@@ -3,6 +3,9 @@
     "reference-types": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/spec/blob/main/proposals/reference-types/Overview.md",
+        "tags": [
+          "web-features:wasm-reference-types"
+        ],
         "support": {
           "chrome": {
             "version_added": "96"
@@ -24,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/relaxed-SIMD.json b/webassembly/relaxed-SIMD.json
index 04b7f76447ce9b..d7a0819b3e7a2d 100644
--- a/webassembly/relaxed-SIMD.json
+++ b/webassembly/relaxed-SIMD.json
@@ -3,6 +3,9 @@
     "relaxed-SIMD": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/relaxed-simd/blob/main/proposals/relaxed-simd/Overview.md",
+        "tags": [
+          "web-features:wasm-simd-relaxed"
+        ],
         "support": {
           "chrome": {
             "version_added": "114"
@@ -24,7 +27,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": true,
diff --git a/webassembly/sign-extension-operations.json b/webassembly/sign-extension-operations.json
index 2e6a96a6927045..ca7d20dc721e3c 100644
--- a/webassembly/sign-extension-operations.json
+++ b/webassembly/sign-extension-operations.json
@@ -3,16 +3,19 @@
     "sign-extension-operations": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/spec/blob/main/proposals/sign-extension-ops/Overview.md",
+        "tags": [
+          "web-features:wasm-sign-extension-operators"
+        ],
         "support": {
           "chrome": {
-            "version_added": "≤80"
+            "version_added": "69"
           },
           "chrome_android": "mirror",
           "edge": {
-            "version_added": "≤80"
+            "version_added": "18"
           },
           "firefox": {
-            "version_added": "≤72"
+            "version_added": "62"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -26,7 +29,8 @@
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/tail-calls.json b/webassembly/tail-calls.json
index 05976d0054cfce..881d72a3c787df 100644
--- a/webassembly/tail-calls.json
+++ b/webassembly/tail-calls.json
@@ -3,6 +3,9 @@
     "tail-calls": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/tail-call/blob/main/proposals/tail-call/Overview.md",
+        "tags": [
+          "web-features:wasm-tail-call-optimization"
+        ],
         "support": {
           "chrome": {
             "version_added": "112"
@@ -20,11 +23,12 @@
           "opera": "mirror",
           "opera_android": "mirror",
           "safari": {
-            "version_added": false
+            "version_added": "18.2"
           },
           "safari_ios": "mirror",
           "samsunginternet_android": "mirror",
-          "webview_android": "mirror"
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/threads-and-atomics.json b/webassembly/threads-and-atomics.json
index 23296b6c08ddd1..4862a8ba756baa 100644
--- a/webassembly/threads-and-atomics.json
+++ b/webassembly/threads-and-atomics.json
@@ -3,6 +3,9 @@
     "threads-and-atomics": {
       "__compat": {
         "spec_url": "https://github.com/WebAssembly/threads/blob/main/proposals/threads/Overview.md",
+        "tags": [
+          "web-features:wasm-threads"
+        ],
         "support": {
           "chrome": {
             "version_added": "74"
@@ -28,7 +31,8 @@
           "samsunginternet_android": "mirror",
           "webview_android": {
             "version_added": false
-          }
+          },
+          "webview_ios": "mirror"
         },
         "status": {
           "experimental": false,
diff --git a/webassembly/typedFunctionReferences.json b/webassembly/typedFunctionReferences.json
new file mode 100644
index 00000000000000..41f26a3cf8eae2
--- /dev/null
+++ b/webassembly/typedFunctionReferences.json
@@ -0,0 +1,39 @@
+{
+  "webassembly": {
+    "typedFunctionReferences": {
+      "__compat": {
+        "description": "Typed function references",
+        "spec_url": "https://github.com/WebAssembly/function-references/blob/main/proposals/function-references/Overview.md",
+        "support": {
+          "chrome": {
+            "version_added": "119"
+          },
+          "chrome_android": "mirror",
+          "edge": "mirror",
+          "firefox": {
+            "version_added": "120"
+          },
+          "firefox_android": "mirror",
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": "18"
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror",
+          "webview_ios": "mirror"
+        },
+        "status": {
+          "experimental": false,
+          "standard_track": true,
+          "deprecated": false
+        }
+      }
+    }
+  }
+}
diff --git a/webdriver/commands/AcceptAlert.json b/webdriver/commands/AcceptAlert.json
index b573bb06a744d6..f2efb8abe3f697 100644
--- a/webdriver/commands/AcceptAlert.json
+++ b/webdriver/commands/AcceptAlert.json
@@ -4,14 +4,17 @@
       "AcceptAlert": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#accept-alert",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/AddCookie.json b/webdriver/commands/AddCookie.json
index fe4de7ad5a7b5f..086d16d69169dc 100644
--- a/webdriver/commands/AddCookie.json
+++ b/webdriver/commands/AddCookie.json
@@ -4,14 +4,17 @@
       "AddCookie": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#add-cookie",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/Back.json b/webdriver/commands/Back.json
index 249d3622c3b103..fd6313d9bb7c5d 100644
--- a/webdriver/commands/Back.json
+++ b/webdriver/commands/Back.json
@@ -4,14 +4,17 @@
       "Back": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#back",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/CloseWindow.json b/webdriver/commands/CloseWindow.json
index 86ff9319a11115..36dedeccf17ada 100644
--- a/webdriver/commands/CloseWindow.json
+++ b/webdriver/commands/CloseWindow.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/CloseWindow",
           "spec_url": "https://w3c.github.io/webdriver/#close-window",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>. This is only partially supported."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities). This is only partially supported."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -39,7 +42,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/css/types/frequency-percentage.json b/webdriver/commands/CreateVirtualPressureSource.json
similarity index 58%
rename from css/types/frequency-percentage.json
rename to webdriver/commands/CreateVirtualPressureSource.json
index fb8a3feb11e454..f8af1ba0ee13d9 100644
--- a/css/types/frequency-percentage.json
+++ b/webdriver/commands/CreateVirtualPressureSource.json
@@ -1,20 +1,21 @@
 {
-  "css": {
-    "types": {
-      "frequency-percentage": {
+  "webdriver": {
+    "commands": {
+      "CreateVirtualPressureSource": {
         "__compat": {
-          "description": "<code>&lt;frequency-percentage&gt;</code>",
-          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/frequency-percentage",
-          "spec_url": "https://drafts.csswg.org/css-values/#mixed-percentages",
+          "spec_url": "https://w3c.github.io/compute-pressure/#create-virtual-pressure-source",
+          "tags": [
+            "web-features:virtual-pressure-sources"
+          ],
           "support": {
             "chrome": {
-              "version_added": false
+              "version_added": "129",
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": false,
-              "impl_url": "https://bugzil.la/741643"
+              "version_added": false
             },
             "firefox_android": "mirror",
             "ie": {
@@ -28,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/CreateVirtualSensor.json b/webdriver/commands/CreateVirtualSensor.json
index c3a150f709f33b..465edf5ff1f1a1 100644
--- a/webdriver/commands/CreateVirtualSensor.json
+++ b/webdriver/commands/CreateVirtualSensor.json
@@ -4,10 +4,13 @@
       "CreateVirtualSensor": {
         "__compat": {
           "spec_url": "https://w3c.github.io/sensors/#create-virtual-sensor-command",
+          "tags": [
+            "web-features:virtual-sensors"
+          ],
           "support": {
             "chrome": {
               "version_added": "120",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/DeleteAllCookies.json b/webdriver/commands/DeleteAllCookies.json
index 0842e578b7a9a2..80b97101e69d26 100644
--- a/webdriver/commands/DeleteAllCookies.json
+++ b/webdriver/commands/DeleteAllCookies.json
@@ -4,14 +4,17 @@
       "DeleteAllCookies": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#delete-all-cookies",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/DeleteCookie.json b/webdriver/commands/DeleteCookie.json
index 9400742715458a..c8e2d6e9719a4b 100644
--- a/webdriver/commands/DeleteCookie.json
+++ b/webdriver/commands/DeleteCookie.json
@@ -4,14 +4,17 @@
       "DeleteCookie": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#delete-cookie",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/DeleteSession.json b/webdriver/commands/DeleteSession.json
index 14c794e86fc642..240d5151eff19f 100644
--- a/webdriver/commands/DeleteSession.json
+++ b/webdriver/commands/DeleteSession.json
@@ -4,14 +4,17 @@
       "DeleteSession": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#delete-session",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/DeleteVirtualPressureSource.json b/webdriver/commands/DeleteVirtualPressureSource.json
new file mode 100644
index 00000000000000..b05f0b7db6e788
--- /dev/null
+++ b/webdriver/commands/DeleteVirtualPressureSource.json
@@ -0,0 +1,44 @@
+{
+  "webdriver": {
+    "commands": {
+      "DeleteVirtualPressureSource": {
+        "__compat": {
+          "spec_url": "https://w3c.github.io/compute-pressure/#delete-virtual-pressure-source",
+          "tags": [
+            "web-features:virtual-pressure-sources"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129",
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/webdriver/commands/DeleteVirtualSensor.json b/webdriver/commands/DeleteVirtualSensor.json
index d34c3a656ff6d0..3fbb9123310906 100644
--- a/webdriver/commands/DeleteVirtualSensor.json
+++ b/webdriver/commands/DeleteVirtualSensor.json
@@ -4,10 +4,13 @@
       "DeleteVirtualSensor": {
         "__compat": {
           "spec_url": "https://w3c.github.io/sensors/#delete-virtual-sensor-command",
+          "tags": [
+            "web-features:virtual-sensors"
+          ],
           "support": {
             "chrome": {
               "version_added": "120",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/DismissAlert.json b/webdriver/commands/DismissAlert.json
index b6f3decb65f5a2..0a7a42ffdd7a5d 100644
--- a/webdriver/commands/DismissAlert.json
+++ b/webdriver/commands/DismissAlert.json
@@ -4,14 +4,17 @@
       "DismissAlert": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#dismiss-alert",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/ElementClear.json b/webdriver/commands/ElementClear.json
index 29ff6f8b31e81c..1c1663f364217c 100644
--- a/webdriver/commands/ElementClear.json
+++ b/webdriver/commands/ElementClear.json
@@ -4,14 +4,17 @@
       "ElementClear": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#element-clear",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/ElementClick.json b/webdriver/commands/ElementClick.json
index 7856b7169de97c..2c209ed7324d9b 100644
--- a/webdriver/commands/ElementClick.json
+++ b/webdriver/commands/ElementClick.json
@@ -4,14 +4,17 @@
       "ElementClick": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#element-click",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/ElementSendKeys.json b/webdriver/commands/ElementSendKeys.json
index e1aa081c9e0ef5..94148235a37eb8 100644
--- a/webdriver/commands/ElementSendKeys.json
+++ b/webdriver/commands/ElementSendKeys.json
@@ -4,14 +4,17 @@
       "ElementSendKeys": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#element-send-keys",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/ExecuteAsyncScript.json b/webdriver/commands/ExecuteAsyncScript.json
index f60e30117c75d8..239ad5cae5c875 100644
--- a/webdriver/commands/ExecuteAsyncScript.json
+++ b/webdriver/commands/ExecuteAsyncScript.json
@@ -4,14 +4,17 @@
       "ExecuteAsyncScript": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#execute-async-script",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/ExecuteScript.json b/webdriver/commands/ExecuteScript.json
index 7ab4163b6fed2d..726fc18d9fe9b7 100644
--- a/webdriver/commands/ExecuteScript.json
+++ b/webdriver/commands/ExecuteScript.json
@@ -4,14 +4,17 @@
       "ExecuteScript": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#execute-script",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/FindElement.json b/webdriver/commands/FindElement.json
index f2804128bb6c5b..926f0f7c810394 100644
--- a/webdriver/commands/FindElement.json
+++ b/webdriver/commands/FindElement.json
@@ -4,14 +4,17 @@
       "FindElement": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#find-element",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/FindElementFromElement.json b/webdriver/commands/FindElementFromElement.json
index a49d0bed25bfd8..3c2ce96a77a0f2 100644
--- a/webdriver/commands/FindElementFromElement.json
+++ b/webdriver/commands/FindElementFromElement.json
@@ -4,14 +4,17 @@
       "FindElementFromElement": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#find-element-from-element",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/FindElements.json b/webdriver/commands/FindElements.json
index 96bb433fbf4422..b599dc66534a71 100644
--- a/webdriver/commands/FindElements.json
+++ b/webdriver/commands/FindElements.json
@@ -4,14 +4,17 @@
       "FindElements": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#find-elements",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/FindElementsFromElement.json b/webdriver/commands/FindElementsFromElement.json
index 094cfbf2f4e749..fe37991114f2eb 100644
--- a/webdriver/commands/FindElementsFromElement.json
+++ b/webdriver/commands/FindElementsFromElement.json
@@ -4,14 +4,17 @@
       "FindElementsFromElement": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#find-elements-from-element",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/Forward.json b/webdriver/commands/Forward.json
index 9a9adc7348361b..6bc16b13538655 100644
--- a/webdriver/commands/Forward.json
+++ b/webdriver/commands/Forward.json
@@ -4,14 +4,17 @@
       "Forward": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#forward",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/FullscreenWindow.json b/webdriver/commands/FullscreenWindow.json
index 2cd05c9a72c173..ae758ccaaa9f84 100644
--- a/webdriver/commands/FullscreenWindow.json
+++ b/webdriver/commands/FullscreenWindow.json
@@ -4,14 +4,17 @@
       "FullscreenWindow": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#fullscreen-window",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetActiveElement.json b/webdriver/commands/GetActiveElement.json
index 3d8b3ec9aad92c..93d37013f3850f 100644
--- a/webdriver/commands/GetActiveElement.json
+++ b/webdriver/commands/GetActiveElement.json
@@ -4,14 +4,17 @@
       "GetActiveElement": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-active-element",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetAlertText.json b/webdriver/commands/GetAlertText.json
index c5fdab5db05e25..ccb285f40fd99e 100644
--- a/webdriver/commands/GetAlertText.json
+++ b/webdriver/commands/GetAlertText.json
@@ -4,14 +4,17 @@
       "GetAlertText": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-alert-text",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetAllCookies.json b/webdriver/commands/GetAllCookies.json
index 59eb9fc05c95ba..4a70b03a706471 100644
--- a/webdriver/commands/GetAllCookies.json
+++ b/webdriver/commands/GetAllCookies.json
@@ -4,14 +4,17 @@
       "GetAllCookies": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-all-cookies",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetCurrentURL.json b/webdriver/commands/GetCurrentURL.json
index 40cf1e080f57b6..9ba7e6361996e5 100644
--- a/webdriver/commands/GetCurrentURL.json
+++ b/webdriver/commands/GetCurrentURL.json
@@ -4,14 +4,17 @@
       "GetCurrentURL": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-current-url",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetElementAttribute.json b/webdriver/commands/GetElementAttribute.json
index 919c8aebe4e2b5..027ea12d15d2ac 100644
--- a/webdriver/commands/GetElementAttribute.json
+++ b/webdriver/commands/GetElementAttribute.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/GetElementAttribute",
           "spec_url": "https://w3c.github.io/webdriver/#get-element-attribute",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -39,7 +42,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetElementCSSValue.json b/webdriver/commands/GetElementCSSValue.json
index de4017603d3e3b..10f9fb22a386be 100644
--- a/webdriver/commands/GetElementCSSValue.json
+++ b/webdriver/commands/GetElementCSSValue.json
@@ -4,14 +4,17 @@
       "GetElementCSSValue": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-element-css-value",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetElementProperty.json b/webdriver/commands/GetElementProperty.json
index 572e794e7b8c61..71b78cea5f6b8f 100644
--- a/webdriver/commands/GetElementProperty.json
+++ b/webdriver/commands/GetElementProperty.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/GetElementProperty",
           "spec_url": "https://w3c.github.io/webdriver/#get-element-property",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -39,7 +42,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetElementRect.json b/webdriver/commands/GetElementRect.json
index 550300bc3133db..2b6a9797d67f84 100644
--- a/webdriver/commands/GetElementRect.json
+++ b/webdriver/commands/GetElementRect.json
@@ -4,14 +4,17 @@
       "GetElementRect": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-element-rect",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetElementTagName.json b/webdriver/commands/GetElementTagName.json
index e3133931eb011b..a75434a5a575b6 100644
--- a/webdriver/commands/GetElementTagName.json
+++ b/webdriver/commands/GetElementTagName.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/GetElementTagName",
           "spec_url": "https://w3c.github.io/webdriver/#get-element-tag-name",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -39,7 +42,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetElementText.json b/webdriver/commands/GetElementText.json
index 48197d08052bec..38c799c95bb56b 100644
--- a/webdriver/commands/GetElementText.json
+++ b/webdriver/commands/GetElementText.json
@@ -4,14 +4,17 @@
       "GetElementText": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-element-text",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetNamedCookie.json b/webdriver/commands/GetNamedCookie.json
index 87078824df55ba..be44a1821b4491 100644
--- a/webdriver/commands/GetNamedCookie.json
+++ b/webdriver/commands/GetNamedCookie.json
@@ -4,14 +4,17 @@
       "GetNamedCookie": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-named-cookie",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetPageSource.json b/webdriver/commands/GetPageSource.json
index 2bb45f7b26cfaf..976533ee487165 100644
--- a/webdriver/commands/GetPageSource.json
+++ b/webdriver/commands/GetPageSource.json
@@ -4,14 +4,17 @@
       "GetPageSource": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-page-source",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetTimeouts.json b/webdriver/commands/GetTimeouts.json
index b0d988e12779e0..9a55012969e8bb 100644
--- a/webdriver/commands/GetTimeouts.json
+++ b/webdriver/commands/GetTimeouts.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/GetTimeouts",
           "spec_url": "https://w3c.github.io/webdriver/#get-timeouts",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -39,7 +42,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetTitle.json b/webdriver/commands/GetTitle.json
index d9f5662ea66889..9aaf09ecff55e9 100644
--- a/webdriver/commands/GetTitle.json
+++ b/webdriver/commands/GetTitle.json
@@ -4,14 +4,17 @@
       "GetTitle": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-title",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetVirtualSensorInformation.json b/webdriver/commands/GetVirtualSensorInformation.json
index 8a5c4d14278893..782abcb138e76e 100644
--- a/webdriver/commands/GetVirtualSensorInformation.json
+++ b/webdriver/commands/GetVirtualSensorInformation.json
@@ -4,10 +4,13 @@
       "GetVirtualSensorInformation": {
         "__compat": {
           "spec_url": "https://w3c.github.io/sensors/#get-virtual-sensor-information-command",
+          "tags": [
+            "web-features:virtual-sensors"
+          ],
           "support": {
             "chrome": {
               "version_added": "120",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetWindowHandle.json b/webdriver/commands/GetWindowHandle.json
index 9107cb29cb00a5..dd677e2a5cb1d5 100644
--- a/webdriver/commands/GetWindowHandle.json
+++ b/webdriver/commands/GetWindowHandle.json
@@ -4,14 +4,17 @@
       "GetWindowHandle": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#get-window-handle",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetWindowHandles.json b/webdriver/commands/GetWindowHandles.json
index f4324a7f6d9771..03024cb75e7075 100644
--- a/webdriver/commands/GetWindowHandles.json
+++ b/webdriver/commands/GetWindowHandles.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/GetWindowHandles",
           "spec_url": "https://w3c.github.io/webdriver/#get-window-handles",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -39,7 +42,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/GetWindowRect.json b/webdriver/commands/GetWindowRect.json
index 4a3953e2f14154..02c5a7b55358f5 100644
--- a/webdriver/commands/GetWindowRect.json
+++ b/webdriver/commands/GetWindowRect.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/GetWindowRect",
           "spec_url": "https://w3c.github.io/webdriver/#get-window-rect",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -39,7 +42,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/IsElementEnabled.json b/webdriver/commands/IsElementEnabled.json
index f2f386fcaffeb4..b3cef06c7b6dbc 100644
--- a/webdriver/commands/IsElementEnabled.json
+++ b/webdriver/commands/IsElementEnabled.json
@@ -4,14 +4,17 @@
       "IsElementEnabled": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#is-element-enabled",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/IsElementSelected.json b/webdriver/commands/IsElementSelected.json
index d5c9fe733e60d8..7ddfa386c421d8 100644
--- a/webdriver/commands/IsElementSelected.json
+++ b/webdriver/commands/IsElementSelected.json
@@ -4,14 +4,17 @@
       "IsElementSelected": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#is-element-selected",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/MaximizeWindow.json b/webdriver/commands/MaximizeWindow.json
index 4f1a10a7b84194..fe79015b3856d5 100644
--- a/webdriver/commands/MaximizeWindow.json
+++ b/webdriver/commands/MaximizeWindow.json
@@ -4,14 +4,17 @@
       "MaximizeWindow": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#maximize-window",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/MinimizeWindow.json b/webdriver/commands/MinimizeWindow.json
index 6b02674cd3f2d5..e8e08ca3b5eee3 100644
--- a/webdriver/commands/MinimizeWindow.json
+++ b/webdriver/commands/MinimizeWindow.json
@@ -4,14 +4,17 @@
       "MinimizeWindow": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#minimize-window",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/NavigateTo.json b/webdriver/commands/NavigateTo.json
index cb463e32b8594c..733e8c997a6b2f 100644
--- a/webdriver/commands/NavigateTo.json
+++ b/webdriver/commands/NavigateTo.json
@@ -4,14 +4,17 @@
       "NavigateTo": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#navigate-to",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/NewSession.json b/webdriver/commands/NewSession.json
index 7a9dfe0e371cdd..79cff6ae6fa72b 100644
--- a/webdriver/commands/NewSession.json
+++ b/webdriver/commands/NewSession.json
@@ -4,14 +4,17 @@
       "NewSession": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#new-session",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/NewWindow.json b/webdriver/commands/NewWindow.json
index ad83ae43dc7049..e4abe565ba3b09 100644
--- a/webdriver/commands/NewWindow.json
+++ b/webdriver/commands/NewWindow.json
@@ -3,12 +3,15 @@
     "commands": {
       "NewWindow": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/New_Window",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/NewWindow",
           "spec_url": "https://w3c.github.io/webdriver/#new-window",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -31,7 +34,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/PerformActions.json b/webdriver/commands/PerformActions.json
index e9788cecf04eaa..c1b4a1226854a4 100644
--- a/webdriver/commands/PerformActions.json
+++ b/webdriver/commands/PerformActions.json
@@ -4,10 +4,13 @@
       "PerformActions": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#perform-actions",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -32,7 +35,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/Refresh.json b/webdriver/commands/Refresh.json
index a2d1dcc0eb1b37..3c6d2d1a2ce5ef 100644
--- a/webdriver/commands/Refresh.json
+++ b/webdriver/commands/Refresh.json
@@ -4,14 +4,17 @@
       "Refresh": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#refresh",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/ReleaseActions.json b/webdriver/commands/ReleaseActions.json
index 08ae419d09e0b0..543850d31cad0c 100644
--- a/webdriver/commands/ReleaseActions.json
+++ b/webdriver/commands/ReleaseActions.json
@@ -4,10 +4,13 @@
       "ReleaseActions": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#release-actions",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -32,7 +35,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/SendAlertText.json b/webdriver/commands/SendAlertText.json
index 39d5cc22ff2a88..b7990d81d377c1 100644
--- a/webdriver/commands/SendAlertText.json
+++ b/webdriver/commands/SendAlertText.json
@@ -4,14 +4,17 @@
       "SendAlertText": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#send-alert-text",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/SetTimeouts.json b/webdriver/commands/SetTimeouts.json
index e2d124147de502..a08a587dbc4912 100644
--- a/webdriver/commands/SetTimeouts.json
+++ b/webdriver/commands/SetTimeouts.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/SetTimeouts",
           "spec_url": "https://w3c.github.io/webdriver/#set-timeouts",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -39,7 +42,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/SetWindowRect.json b/webdriver/commands/SetWindowRect.json
index 745a0d04751ad1..b4e70412c398b8 100644
--- a/webdriver/commands/SetWindowRect.json
+++ b/webdriver/commands/SetWindowRect.json
@@ -5,14 +5,17 @@
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/WebDriver/Commands/SetWindowRect",
           "spec_url": "https://w3c.github.io/webdriver/#set-window-rect",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +30,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -39,7 +42,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/Status.json b/webdriver/commands/Status.json
index fdff94a1c914b8..7c001df36ec099 100644
--- a/webdriver/commands/Status.json
+++ b/webdriver/commands/Status.json
@@ -4,14 +4,17 @@
       "Status": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#status",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/SwitchToFrame.json b/webdriver/commands/SwitchToFrame.json
index 2dbf415e98d607..6fb1c9cf9282a2 100644
--- a/webdriver/commands/SwitchToFrame.json
+++ b/webdriver/commands/SwitchToFrame.json
@@ -4,14 +4,17 @@
       "SwitchToFrame": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#switch-to-frame",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/SwitchToParentFrame.json b/webdriver/commands/SwitchToParentFrame.json
index 225b698685c098..35ffa6dee56b22 100644
--- a/webdriver/commands/SwitchToParentFrame.json
+++ b/webdriver/commands/SwitchToParentFrame.json
@@ -4,14 +4,17 @@
       "SwitchToParentFrame": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#switch-to-parent-frame",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/SwitchToWindow.json b/webdriver/commands/SwitchToWindow.json
index b0c6f629c8f526..eb2858af2fc567 100644
--- a/webdriver/commands/SwitchToWindow.json
+++ b/webdriver/commands/SwitchToWindow.json
@@ -4,14 +4,17 @@
       "SwitchToWindow": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#switch-to-window",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/TakeElementScreenshot.json b/webdriver/commands/TakeElementScreenshot.json
index 052e7a0e6e72b7..a267e808fd74c1 100644
--- a/webdriver/commands/TakeElementScreenshot.json
+++ b/webdriver/commands/TakeElementScreenshot.json
@@ -4,14 +4,17 @@
       "TakeElementScreenshot": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#take-element-screenshot",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>. Limited support."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities). Limited support."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/TakeScreenshot.json b/webdriver/commands/TakeScreenshot.json
index c703e97336aa0f..7c57306bfa7c72 100644
--- a/webdriver/commands/TakeScreenshot.json
+++ b/webdriver/commands/TakeScreenshot.json
@@ -4,14 +4,17 @@
       "TakeScreenshot": {
         "__compat": {
           "spec_url": "https://w3c.github.io/webdriver/#take-screenshot",
+          "tags": [
+            "web-features:webdriver"
+          ],
           "support": {
             "chrome": {
               "version_added": "65",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>. Limited support."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities). Limited support."
             },
             "chrome_android": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +29,7 @@
             "oculus": "mirror",
             "opera": {
               "version_added": false,
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "opera_android": "mirror",
             "safari": {
@@ -38,7 +41,8 @@
               "version_added": false,
               "notes": "The vendor-supported implementation for Samsung Internet is non-spec-conforming and incompatible."
             },
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webdriver/commands/UpdateVirtualPressureSource.json b/webdriver/commands/UpdateVirtualPressureSource.json
new file mode 100644
index 00000000000000..479280ea5de66d
--- /dev/null
+++ b/webdriver/commands/UpdateVirtualPressureSource.json
@@ -0,0 +1,44 @@
+{
+  "webdriver": {
+    "commands": {
+      "UpdateVirtualPressureSource": {
+        "__compat": {
+          "spec_url": "https://w3c.github.io/compute-pressure/#update-virtual-pressure-source",
+          "tags": [
+            "web-features:virtual-pressure-sources"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "129",
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": false,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/webdriver/commands/UpdateVirtualSensorReading.json b/webdriver/commands/UpdateVirtualSensorReading.json
index 1b564af47cef16..0747b575e30e67 100644
--- a/webdriver/commands/UpdateVirtualSensorReading.json
+++ b/webdriver/commands/UpdateVirtualSensorReading.json
@@ -4,10 +4,13 @@
       "UpdateVirtualSensorReading": {
         "__compat": {
           "spec_url": "https://w3c.github.io/sensors/#update-virtual-sensor-reading-command",
+          "tags": [
+            "web-features:virtual-sensors"
+          ],
           "support": {
             "chrome": {
               "version_added": "120",
-              "notes": "To enable Chromium support, include <code>{\"goog:chromeOptions\": {\"w3c\": true}}</code> in the <a href=https://developer.mozilla.org/docs/Web/WebDriver/Capabilities>capabilities</a>."
+              "notes": "To enable Chromium support, include `{\"goog:chromeOptions\": {\"w3c\": true}}` in the [capabilities](https://developer.mozilla.org/docs/Web/WebDriver/Capabilities)."
             },
             "chrome_android": "mirror",
             "edge": "mirror",
@@ -26,7 +29,8 @@
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
-            "webview_android": "mirror"
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
           },
           "status": {
             "experimental": false,
diff --git a/webextensions/api/action.json b/webextensions/api/action.json
index f044b977c968c5..7be0da3797f041 100644
--- a/webextensions/api/action.json
+++ b/webextensions/api/action.json
@@ -60,6 +60,25 @@
             }
           }
         },
+        "UserSettingsChange": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": "130"
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "opera": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror"
+            }
+          }
+        },
         "disable": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/action/disable",
@@ -116,14 +135,14 @@
               "safari": {
                 "version_added": "15.4",
                 "partial_implementation": true,
-                "notes": "Always returns a <code>ColorArray</code> containing red."
+                "notes": "Always returns a `ColorArray` containing red."
               },
               "safari_ios": "mirror"
             }
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -163,7 +182,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -187,7 +206,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/action/getBadgeTextColor",
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "109"
               },
               "edge": "mirror",
               "firefox": {
@@ -223,7 +242,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -263,7 +282,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -303,7 +322,7 @@
           },
           "returns_userSettings_isOnToolbar_property": {
             "__compat": {
-              "description": "<code>userSettings.isOnToolbar</code> in returned object",
+              "description": "`userSettings.isOnToolbar` in returned object",
               "support": {
                 "chrome": {
                   "version_added": "91"
@@ -329,7 +348,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/action/isEnabled",
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "108"
               },
               "edge": "mirror",
               "firefox": {
@@ -345,7 +364,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -422,6 +441,25 @@
             }
           }
         },
+        "onUserSettingsChanged": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": "130"
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "opera": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror"
+            }
+          }
+        },
         "openPopup": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/action/openPopup",
@@ -433,7 +471,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "109",
-                "notes": "User interaction is not required to call this API when the <code>extensions.openPopupWithoutUserGesture.enabled</code> preference is set (<a href='https://bugzil.la/1799344'>bug 1799344</a>)."
+                "notes": "User interaction is not required to call this API when the `extensions.openPopupWithoutUserGesture.enabled` preference is set ([bug 1799344](https://bugzil.la/1799344))."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -468,7 +506,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -488,7 +526,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>color</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `color` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -508,7 +546,7 @@
           },
           "string": {
             "__compat": {
-              "description": "The <code>color</code> property of the <code>details</code> parameter can be set to a string.",
+              "description": "The `color` property of the `details` parameter can be set to a string.",
               "support": {
                 "chrome": {
                   "version_added": "88"
@@ -548,7 +586,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -568,10 +606,10 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>text</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `text` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
-                  "version_added": false
+                  "version_added": "116"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -592,7 +630,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/action/setBadgeTextColor",
             "support": {
               "chrome": {
-                "version_added": false
+                "version_added": "109"
               },
               "edge": "mirror",
               "firefox": {
@@ -618,8 +656,8 @@
                 "version_added": "88",
                 "notes": [
                   "This call is not persisted.",
-                  "The <code>imageData</code> parameter is not accepted.",
-                  "The <code>path</code> parameter is required."
+                  "The `imageData` parameter is not accepted.",
+                  "The `path` parameter is required."
                 ]
               },
               "firefox": {
@@ -635,7 +673,7 @@
           },
           "details_imageData_parameter": {
             "__compat": {
-              "description": "<code>details.imageData</code> parameter",
+              "description": "`details.imageData` parameter",
               "support": {
                 "chrome": {
                   "version_added": "88"
@@ -655,7 +693,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -675,7 +713,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>path</code> and <code>imageData</code> properties of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `path` and `imageData` properties of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -715,7 +753,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -735,7 +773,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>popup</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `popup` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -779,7 +817,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -799,7 +837,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>title</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `title` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
diff --git a/webextensions/api/alarms.json b/webextensions/api/alarms.json
index 5bc988a04712a6..2ec4d05eda0239 100644
--- a/webextensions/api/alarms.json
+++ b/webextensions/api/alarms.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/alarms",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "22"
             },
             "edge": "mirror",
             "firefox": {
@@ -29,7 +29,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/alarms/Alarm",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -53,7 +53,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/alarms/clear",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -77,7 +77,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/alarms/clearAll",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -101,7 +101,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/alarms/create",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -125,7 +125,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/alarms/get",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -149,7 +149,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/alarms/getAll",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -173,7 +173,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/alarms/onAlarm",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/bookmarks.json b/webextensions/api/bookmarks.json
index ac73626ff36d1e..800469df47310b 100644
--- a/webextensions/api/bookmarks.json
+++ b/webextensions/api/bookmarks.json
@@ -7,7 +7,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/BookmarkTreeNode",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": "mirror",
               "firefox": {
@@ -72,7 +72,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/BookmarkTreeNodeUnmodifiable",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "44"
               },
               "edge": "mirror",
               "firefox": {
@@ -94,7 +94,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/CreateDetails",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "36"
               },
               "edge": "mirror",
               "firefox": {
@@ -137,7 +137,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/create",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": {
                 "version_added": "15"
@@ -161,7 +161,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/get",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": "mirror",
               "firefox": {
@@ -183,7 +183,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/getChildren",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": "mirror",
               "firefox": {
@@ -205,7 +205,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/getRecent",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -227,7 +227,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/getSubTree",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "14"
               },
               "edge": "mirror",
               "firefox": {
@@ -249,7 +249,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/getTree",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": {
                 "version_added": "15"
@@ -273,7 +273,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/move",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": {
                 "version_added": "15"
@@ -297,7 +297,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/onChanged",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": "mirror",
               "firefox": {
@@ -319,7 +319,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/onChildrenReordered",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": "mirror",
               "firefox": {
@@ -339,7 +339,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/onCreated",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": "mirror",
               "firefox": {
@@ -361,7 +361,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/onImportBegan",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -381,7 +381,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/onImportEnded",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -401,7 +401,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/onMoved",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": "mirror",
               "firefox": {
@@ -423,7 +423,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/onRemoved",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": "mirror",
               "firefox": {
@@ -445,7 +445,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/remove",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": {
                 "version_added": "15"
@@ -469,7 +469,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/removeTree",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": {
                 "version_added": "15"
@@ -493,7 +493,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/search",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": "mirror",
               "firefox": {
@@ -515,7 +515,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/update",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "3"
               },
               "edge": {
                 "version_added": "15"
diff --git a/webextensions/api/browserAction.json b/webextensions/api/browserAction.json
index 552b1adbc61842..51d81a0f4f7e2b 100644
--- a/webextensions/api/browserAction.json
+++ b/webextensions/api/browserAction.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction",
           "support": {
             "chrome": {
-              "version_added": "≤58",
+              "version_added": "4",
               "notes": "Available for use in Manifest V2 only."
             },
             "edge": {
@@ -40,7 +40,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/ColorArray",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "14"
@@ -66,7 +66,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/ImageDataType",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "23"
               },
               "edge": {
                 "version_added": "14"
@@ -92,7 +92,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/disable",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": {
                 "version_added": "14"
@@ -118,7 +118,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/enable",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": {
                 "version_added": "14"
@@ -144,7 +144,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/getBadgeBackgroundColor",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "14"
@@ -159,18 +159,18 @@
               "safari": {
                 "version_added": "14",
                 "partial_implementation": true,
-                "notes": "Always returns a red <code>ColorArray</code>."
+                "notes": "Always returns a red `ColorArray`."
               },
               "safari_ios": {
                 "version_added": "15",
                 "partial_implementation": true,
-                "notes": "Always returns a red <code>ColorArray</code>."
+                "notes": "Always returns a red `ColorArray`."
               }
             }
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -196,7 +196,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/getBadgeText",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "14"
@@ -218,7 +218,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -266,7 +266,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/getPopup",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -286,7 +286,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -312,7 +312,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/getTitle",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "15"
@@ -334,7 +334,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -380,7 +380,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -406,7 +406,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/onClicked",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -489,8 +489,8 @@
               "firefox": {
                 "version_added": "57",
                 "notes": [
-                  "Since Firefox 108, user interaction is no longer required to call this API when the <code>extensions.openPopupWithoutUserGesture.enabled</code> preference is set (<a href='https://bugzil.la/1799344'>bug 1799344</a>).",
-                  "Support for the <code>windowId</code> parameter was added in Firefox 108."
+                  "Since Firefox 108, user interaction is no longer required to call this API when the `extensions.openPopupWithoutUserGesture.enabled` preference is set ([bug 1799344](https://bugzil.la/1799344)).",
+                  "Support for the `windowId` parameter was added in Firefox 108."
                 ]
               },
               "firefox_android": {
@@ -509,7 +509,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/setBadgeBackgroundColor",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "14"
@@ -544,7 +544,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -566,7 +566,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>color</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `color` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -588,15 +588,15 @@
           },
           "string": {
             "__compat": {
-              "description": "The <code>color</code> property of the <code>details</code> parameter can be set to a string.",
+              "description": "The `color` property of the `details` parameter can be set to a string.",
               "support": {
                 "chrome": {
                   "version_added": "≤63"
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": true,
-                  "notes": "Before Firefox 59, invalid color strings behaved as <code>null</code>."
+                  "version_added": "≤57",
+                  "notes": "Before Firefox 59, invalid color strings behaved as `null`."
                 },
                 "firefox_android": {
                   "version_added": "79"
@@ -615,7 +615,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/setBadgeText",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -644,7 +644,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -666,10 +666,10 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>text</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `text` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
-                  "version_added": false
+                  "version_added": "83"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -715,14 +715,14 @@
             "support": {
               "chrome": {
                 "version_added": "≤23",
-                "notes": "Before Chrome 23, <code>path</code> couldn't specify multiple icon files, but had to be a string specifying a single icon path."
+                "notes": "Before Chrome 23, `path` couldn't specify multiple icon files, but had to be a string specifying a single icon path."
               },
               "edge": {
                 "version_added": "14",
                 "notes": [
                   "This call is not persisted.",
-                  "The <code>imageData</code> parameter is not accepted.",
-                  "The <code>path</code> parameter is required."
+                  "The `imageData` parameter is not accepted.",
+                  "The `path` parameter is required."
                 ]
               },
               "firefox": [
@@ -751,7 +751,7 @@
           },
           "details_imageData_parameter": {
             "__compat": {
-              "description": "<code>details.imageData</code> parameter",
+              "description": "`details.imageData` parameter",
               "support": {
                 "chrome": {
                   "version_added": "23"
@@ -775,7 +775,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -797,7 +797,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>path</code> and <code>imageData</code> properties of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `path` and `imageData` properties of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -823,7 +823,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/setPopup",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": {
                 "version_added": "14"
@@ -859,7 +859,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -881,7 +881,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>popup</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `popup` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -907,7 +907,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/setTitle",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "15"
@@ -945,7 +945,7 @@
           },
           "details_windowId_parameter": {
             "__compat": {
-              "description": "<code>details.windowId</code> parameter",
+              "description": "`details.windowId` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -967,7 +967,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>title</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `title` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
diff --git a/webextensions/api/browserSettings.json b/webextensions/api/browserSettings.json
index 59dbc0ed276a82..3e435e443d8de8 100644
--- a/webextensions/api/browserSettings.json
+++ b/webextensions/api/browserSettings.json
@@ -132,7 +132,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "72",
-                "notes": "From version 88, this setting is read-only (see <a href='https://bugzil.la/1626365'>bug 1626365</a>)."
+                "notes": "From version 88, this setting is read-only (see [bug 1626365](https://bugzil.la/1626365))."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
diff --git a/webextensions/api/browsingData.json b/webextensions/api/browsingData.json
index 27bf638693e30f..4a2f736c271f76 100644
--- a/webextensions/api/browsingData.json
+++ b/webextensions/api/browsingData.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "19"
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +26,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/DataTypeSet",
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -53,7 +53,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -80,7 +80,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -107,7 +107,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -126,7 +126,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -153,7 +153,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -180,7 +180,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -201,7 +201,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -222,7 +222,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -243,7 +243,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -264,7 +264,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -283,7 +283,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "38"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -315,7 +315,7 @@
                 },
                 "firefox_android": {
                   "version_added": "84",
-                  "notes": "This option is currently limited to the <code>firefox-default</code> and <code>firefox-private</code> values."
+                  "notes": "This option is currently limited to the `firefox-default` and `firefox-private` values."
                 },
                 "opera": "mirror",
                 "safari": {
@@ -354,7 +354,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "21"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -372,7 +372,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤58"
+                    "version_added": "21"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -391,7 +391,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤58"
+                    "version_added": "21"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -411,22 +411,22 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "19"
                 },
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "53",
-                  "notes": "<code>since</code> is not supported with the following data types: <code>cache</code>, <code>indexedDB</code>, <code>localStorage</code>, and <code>serviceWorkers</code>."
+                  "notes": "`since` is not supported with the following data types: `cache`, `indexedDB`, `localStorage`, and `serviceWorkers`."
                 },
                 "firefox_android": [
                   {
                     "version_added": "85",
-                    "notes": "<code>since</code> is not supported with the following data types: <code>cache</code>, <code>indexedDB</code>, <code>localStorage</code>, and <code>serviceWorkers</code>."
+                    "notes": "`since` is not supported with the following data types: `cache`, `indexedDB`, `localStorage`, and `serviceWorkers`."
                   },
                   {
                     "version_added": "56",
                     "version_removed": "79",
-                    "notes": "<code>since</code> is not supported with the following data types: <code>cache</code>, <code>indexedDB</code>, <code>localStorage</code>, and <code>serviceWorkers</code>."
+                    "notes": "`since` is not supported with the following data types: `cache`, `indexedDB`, `localStorage`, and `serviceWorkers`."
                   }
                 ],
                 "opera": "mirror",
@@ -443,22 +443,22 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/remove",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "53",
-                "notes": "Specifying <code>dataTypes.history</code> will also remove download history and service workers."
+                "notes": "Specifying `dataTypes.history` will also remove download history and service workers."
               },
               "firefox_android": [
                 {
                   "version_added": "85",
-                  "notes": "Specifying <code>dataTypes.history</code> will also remove download history and service workers."
+                  "notes": "Specifying `dataTypes.history` will also remove download history and service workers."
                 },
                 {
                   "version_added": "57",
                   "version_removed": "79",
-                  "notes": "Specifying <code>dataTypes.history</code> will also remove download history and service workers."
+                  "notes": "Specifying `dataTypes.history` will also remove download history and service workers."
                 }
               ],
               "opera": "mirror",
@@ -474,22 +474,22 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/removeCache",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "53",
-                "notes": "<code>removalOptions.since</code> is not supported."
+                "notes": "`removalOptions.since` is not supported."
               },
               "firefox_android": [
                 {
                   "version_added": "85",
-                  "notes": "<code>removalOptions.since</code> is not supported."
+                  "notes": "`removalOptions.since` is not supported."
                 },
                 {
                   "version_added": "57",
                   "version_removed": "79",
-                  "notes": "<code>removalOptions.since</code> is not supported."
+                  "notes": "`removalOptions.since` is not supported."
                 }
               ],
               "opera": "mirror",
@@ -505,7 +505,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/removeCookies",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -533,7 +533,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/removeDownloads",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -556,7 +556,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/removeFormData",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -579,7 +579,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/removeHistory",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -602,16 +602,16 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/removeLocalStorage",
             "support": {
               "chrome": {
-                "version_added": "≤61"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "57",
-                "notes": "<code>removalOptions.since</code> is not supported."
+                "notes": "`removalOptions.since` is not supported."
               },
               "firefox_android": {
                 "version_added": "85",
-                "notes": "<code>removalOptions.since</code> is not supported."
+                "notes": "`removalOptions.since` is not supported."
               },
               "opera": "mirror",
               "safari": {
@@ -649,7 +649,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/removePasswords",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -671,7 +671,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/removePluginData",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -693,7 +693,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/settings",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "26"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/commands.json b/webextensions/api/commands.json
index 173c172785acbe..96a2cf6f795230 100644
--- a/webextensions/api/commands.json
+++ b/webextensions/api/commands.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/commands",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "25"
             },
             "edge": "mirror",
             "firefox": {
@@ -29,7 +29,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/commands/Command",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "25"
               },
               "edge": "mirror",
               "firefox": {
@@ -51,7 +51,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "25"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -74,7 +74,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "25"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -97,7 +97,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "25"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -168,12 +168,12 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/commands/onCommand",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "25"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "48",
-                "notes": "Before version 63, the <code>onCommand</code> listener was not treated as a <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/User_actions'>handler for a user action</a>."
+                "notes": "Before version 63, the `onCommand` listener was not treated as a [handler for a user action](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/User_actions)."
               },
               "firefox_android": {
                 "version_added": false
@@ -191,11 +191,9 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
-                },
-                "edge": {
-                  "version_added": "79"
+                  "version_added": "25"
                 },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": "48"
                 },
@@ -216,7 +214,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "25"
                 },
                 "edge": "mirror",
                 "firefox": {
diff --git a/webextensions/api/contentScriptGlobalScope.json b/webextensions/api/contentScriptGlobalScope.json
new file mode 100644
index 00000000000000..866071127e8dc6
--- /dev/null
+++ b/webextensions/api/contentScriptGlobalScope.json
@@ -0,0 +1,66 @@
+{
+  "webextensions": {
+    "api": {
+      "contentScriptGlobalScope": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/Content_scripts",
+          "support": {
+            "chrome": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": "49"
+            },
+            "firefox_android": "mirror",
+            "opera": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror"
+          }
+        },
+        "cloneInto": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/Content_scripts/cloneInto",
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "49"
+              },
+              "firefox_android": "mirror",
+              "opera": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror"
+            }
+          }
+        },
+        "exportFunction": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/Content_scripts/exportFunction",
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "49"
+              },
+              "firefox_android": "mirror",
+              "opera": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror"
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/webextensions/api/contextualIdentities.json b/webextensions/api/contextualIdentities.json
index bfd073e58e1f2b..a6860bcd6908c4 100644
--- a/webextensions/api/contextualIdentities.json
+++ b/webextensions/api/contextualIdentities.json
@@ -15,7 +15,7 @@
             "firefox_android": {
               "version_added": false,
               "impl_url": "https://bugzil.la/1638878",
-              "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+              "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
             },
             "opera": "mirror",
             "safari": {
@@ -38,7 +38,7 @@
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
@@ -60,7 +60,7 @@
                 "firefox_android": {
                   "version_added": false,
                   "impl_url": "https://bugzil.la/1638878",
-                  "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                  "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
                 },
                 "opera": "mirror",
                 "safari": {
@@ -83,7 +83,7 @@
                 "firefox_android": {
                   "version_added": false,
                   "impl_url": "https://bugzil.la/1638878",
-                  "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                  "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
                 },
                 "opera": "mirror",
                 "safari": {
@@ -106,7 +106,7 @@
                 "firefox_android": {
                   "version_added": false,
                   "impl_url": "https://bugzil.la/1638878",
-                  "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                  "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
                 },
                 "opera": "mirror",
                 "safari": {
@@ -129,7 +129,7 @@
                 "firefox_android": {
                   "version_added": false,
                   "impl_url": "https://bugzil.la/1638878",
-                  "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                  "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
                 },
                 "opera": "mirror",
                 "safari": {
@@ -152,7 +152,7 @@
                 "firefox_android": {
                   "version_added": false,
                   "impl_url": "https://bugzil.la/1638878",
-                  "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                  "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
                 },
                 "opera": "mirror",
                 "safari": {
@@ -175,7 +175,7 @@
                 "firefox_android": {
                   "version_added": false,
                   "impl_url": "https://bugzil.la/1638878",
-                  "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                  "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
                 },
                 "opera": "mirror",
                 "safari": {
@@ -196,12 +196,12 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "53",
-                "notes": "Before version 57, this method resolves its promise with <code>false</code> if the contextual identities feature is disabled."
+                "notes": "Before version 57, this method resolves its promise with `false` if the contextual identities feature is disabled."
               },
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
@@ -222,14 +222,14 @@
               "firefox": {
                 "version_added": "53",
                 "notes": [
-                  "Before version 57, this method resolves its promise with <code>false</code> if the contextual identities feature is disabled.",
-                  "Before version 57, this method resolves its promise with <code>null</code> if the given identity was not found."
+                  "Before version 57, this method resolves its promise with `false` if the contextual identities feature is disabled.",
+                  "Before version 57, this method resolves its promise with `null` if the given identity was not found."
                 ]
               },
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
@@ -253,7 +253,7 @@
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
@@ -277,7 +277,7 @@
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
@@ -301,7 +301,7 @@
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
@@ -325,7 +325,7 @@
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
@@ -345,12 +345,12 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "53",
-                "notes": "Before version 57, this method resolves its promise with <code>false</code> if the contextual identities feature is disabled."
+                "notes": "Before version 57, this method resolves its promise with `false` if the contextual identities feature is disabled."
               },
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
@@ -371,14 +371,14 @@
               "firefox": {
                 "version_added": "53",
                 "notes": [
-                  "Before version 57, this method resolves its promise with <code>false</code> if the contextual identities feature is disabled.",
-                  "Before version 57, this method resolves its promise with <code>null</code> if the given identity was not found."
+                  "Before version 57, this method resolves its promise with `false` if the contextual identities feature is disabled.",
+                  "Before version 57, this method resolves its promise with `null` if the given identity was not found."
                 ]
               },
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
@@ -399,14 +399,14 @@
               "firefox": {
                 "version_added": "53",
                 "notes": [
-                  "Before version 57, this method resolves its promise with <code>false</code> if the contextual identities feature is disabled.",
-                  "Before version 57, this method resolves its promise with <code>null</code> if the given identity was not found."
+                  "Before version 57, this method resolves its promise with `false` if the contextual identities feature is disabled.",
+                  "Before version 57, this method resolves its promise with `null` if the given identity was not found."
                 ]
               },
               "firefox_android": {
                 "version_added": false,
                 "impl_url": "https://bugzil.la/1638878",
-                "notes": "<code>contextualIdentities</code> is defined but not functional in Firefox for Android."
+                "notes": "`contextualIdentities` is defined but not functional in Firefox for Android."
               },
               "opera": "mirror",
               "safari": {
diff --git a/webextensions/api/cookies.json b/webextensions/api/cookies.json
index 994d0d16513658..2b221fc66a3098 100644
--- a/webextensions/api/cookies.json
+++ b/webextensions/api/cookies.json
@@ -7,7 +7,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/cookies/Cookie",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": "mirror",
               "firefox": {
@@ -67,7 +67,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤72"
+                  "version_added": "51"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -92,7 +92,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/cookies/CookieStore",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": "mirror",
               "firefox": {
@@ -114,7 +114,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "6"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -156,7 +156,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "6"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -202,12 +202,15 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/cookies/get",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "45",
-                "notes": "Provides access to cookies from private browsing mode and container tabs since version 52."
+                "notes": [
+                  "Provides access to cookies from private browsing mode and container tabs since version 52.",
+                  "From Firefox 133, sorts cookies according to [RFC 6265, section 5.4](https://datatracker.ietf.org/doc/html/rfc6265#section-5.4). This means the cookie with the longest matching path is returned; previously, the earliest created cookie was returned."
+                ]
               },
               "firefox_android": {
                 "version_added": "48"
@@ -220,7 +223,7 @@
                 {
                   "version_added": "14",
                   "partial_implementation": true,
-                  "notes": "<code>HttpOnly</code> cookies are not retrieved."
+                  "notes": "`HttpOnly` cookies are not retrieved."
                 }
               ],
               "safari_ios": [
@@ -230,7 +233,7 @@
                 {
                   "version_added": "15",
                   "partial_implementation": true,
-                  "notes": "<code>HttpOnly</code> cookies are not retrieved."
+                  "notes": "`HttpOnly` cookies are not retrieved."
                 }
               ]
             }
@@ -279,7 +282,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/cookies/getAll",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": {
                 "version_added": "79",
@@ -287,7 +290,10 @@
               },
               "firefox": {
                 "version_added": "45",
-                "notes": "Before version 52, the 'tabIds' list was empty and only cookies from the default cookie store were returned. From version 52 onwards, this has been fixed and the result includes cookies from private browsing mode and container tabs."
+                "notes": [
+                  "Before version 52, the 'tabIds' list was empty and only cookies from the default cookie store were returned. From version 52 onwards, this has been fixed and the result includes cookies from private browsing mode and container tabs.",
+                  "From Firefox 133, sorts cookies according to [RFC 6265, section 5.4](https://datatracker.ietf.org/doc/html/rfc6265#section-5.4). This means the cookie with the longest matching path is returned first: previously, the earliest created cookie was returned first."
+                ]
               },
               "firefox_android": {
                 "version_added": "48"
@@ -302,7 +308,7 @@
                   "partial_implementation": true,
                   "notes": [
                     "Only the cookies in the default cookie store are retrieved.",
-                    "<code>HttpOnly</code> cookies are not retrieved."
+                    "`HttpOnly` cookies are not retrieved."
                   ]
                 }
               ],
@@ -315,7 +321,7 @@
                   "partial_implementation": true,
                   "notes": [
                     "Only the cookies in the default cookie store are retrieved.",
-                    "<code>HttpOnly</code> cookies are not retrieved."
+                    "`HttpOnly` cookies are not retrieved."
                   ]
                 }
               ]
@@ -365,7 +371,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/cookies/getAllCookieStores",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": "mirror",
               "firefox": {
@@ -404,7 +410,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/cookies/onChanged",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": "mirror",
               "firefox": {
@@ -447,16 +453,22 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/cookies/remove",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "45",
-                "notes": "Before version 56, this function did not remove cookies from private browsing mode. From version 56 onwards this is fixed."
+                "notes": [
+                  "Before version 56, this function did not remove cookies from private browsing mode. From version 56 onwards this is fixed.",
+                  "From Firefox 133, sorts cookies according to [RFC 6265, section 5.4](https://datatracker.ietf.org/doc/html/rfc6265#section-5.4). This means the cookie with the longest matching path is deleted: previously, the earliest created cookie was deleted."
+                ]
               },
               "firefox_android": {
                 "version_added": "48",
-                "notes": "Before version 56, this function did not remove cookies from private browsing mode. From version 56 onwards this is fixed."
+                "notes": [
+                  "Before version 56, this function did not remove cookies from private browsing mode. From version 56 onwards this is fixed.",
+                  "From Firefox 133, sorts cookies according to [RFC 6265, section 5.4](https://datatracker.ietf.org/doc/html/rfc6265#section-5.4). This means the cookie with the longest matching path is deleted: previously, the earliest created cookie was deleted."
+                ]
               },
               "opera": "mirror",
               "safari": {
@@ -511,7 +523,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/cookies/SameSiteStatus",
             "support": {
               "chrome": {
-                "version_added": "≤72"
+                "version_added": "51"
               },
               "edge": "mirror",
               "firefox": {
@@ -533,7 +545,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "51"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -556,12 +568,12 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "51"
                 },
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "63",
-                  "notes": "Represents a cookie without a <code>SameSite</code> attribute."
+                  "notes": "Represents a cookie without a `SameSite` attribute."
                 },
                 "firefox_android": "mirror",
                 "opera": {
@@ -580,7 +592,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "51"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -603,7 +615,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "76"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -626,16 +638,22 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/cookies/set",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "45",
-                "notes": "Before version 56, this function did not modify cookies in private browsing mode. From version 56 onwards this is fixed."
+                "notes": [
+                  "Before version 56, this function did not modify cookies in private browsing mode. From version 56 onwards this is fixed.",
+                  "From Firefox 133, sorts cookies according to [RFC 6265, section 5.4](https://datatracker.ietf.org/doc/html/rfc6265#section-5.4). This means the cookie returned by the promise is the one with the longest matching path: previously, the earliest created cookie was returned."
+                ]
               },
               "firefox_android": {
                 "version_added": "48",
-                "notes": "Before version 56, this function did not modify cookies in private browsing mode. From version 56 onwards this is fixed."
+                "notes": [
+                  "Before version 56, this function did not modify cookies in private browsing mode. From version 56 onwards this is fixed.",
+                  "From Firefox 133, sorts cookies according to [RFC 6265, section 5.4](https://datatracker.ietf.org/doc/html/rfc6265#section-5.4). This means the cookie returned by the promise is the one with the longest matching path: previously, the earliest created cookie was returned."
+                ]
               },
               "opera": "mirror",
               "safari": [
@@ -647,7 +665,7 @@
                   "partial_implementation": true,
                   "notes": [
                     "Only sets cookies in the default cookie store.",
-                    "<code>HttpOnly</code> cookies are not set."
+                    "`HttpOnly` cookies are not set."
                   ]
                 }
               ],
@@ -660,7 +678,7 @@
                   "partial_implementation": true,
                   "notes": [
                     "Only sets cookies in the default cookie store.",
-                    "<code>HttpOnly</code> cookies are not set."
+                    "`HttpOnly` cookies are not set."
                   ]
                 }
               ]
@@ -708,7 +726,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤72"
+                  "version_added": "51"
                 },
                 "edge": "mirror",
                 "firefox": {
diff --git a/webextensions/api/declarativeNetRequest.json b/webextensions/api/declarativeNetRequest.json
index a1b80f8886c0c1..a72d9048b25cec 100644
--- a/webextensions/api/declarativeNetRequest.json
+++ b/webextensions/api/declarativeNetRequest.json
@@ -166,12 +166,12 @@
             "support": {
               "chrome": {
                 "version_added": "90",
-                "notes": "Deprecated in Chrome 120. Use <code>MAX_NUMBER_OF_DYNAMIC_RULES</code> and <code>MAX_NUMBER_OF_SESSION_RULES</code> instead."
+                "notes": "Deprecated in Chrome 120. Use `MAX_NUMBER_OF_DYNAMIC_RULES` and `MAX_NUMBER_OF_SESSION_RULES` instead."
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "113",
-                "notes": "Deprecated in Firefox 128. Use <code>MAX_NUMBER_OF_DYNAMIC_RULES</code> and <code>MAX_NUMBER_OF_SESSION_RULES</code> instead."
+                "notes": "Deprecated in Firefox 128. Use `MAX_NUMBER_OF_DYNAMIC_RULES` and `MAX_NUMBER_OF_SESSION_RULES` instead."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -449,7 +449,7 @@
                 "opera": "mirror",
                 "safari": {
                   "version_added": false,
-                  "notes": "Use <code>image</code> instead."
+                  "notes": "Use `image` instead."
                 },
                 "safari_ios": "mirror"
               }
@@ -860,7 +860,7 @@
                 "support": {
                   "chrome": {
                     "version_added": "86",
-                    "notes": "The <code>&quot;append&quot;</code> operation is supported from Chrome 108."
+                    "notes": "The `&quot;append&quot;` operation is supported from Chrome 108."
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -996,7 +996,7 @@
               "support": {
                 "chrome": {
                   "version_added": "84",
-                  "notes": "Deprecated in Chrome 101, use <code>initiatorDomains</code> instead."
+                  "notes": "Deprecated in Chrome 101, use `initiatorDomains` instead."
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1035,7 +1035,7 @@
               "support": {
                 "chrome": {
                   "version_added": "84",
-                  "notes": "Deprecated in Chrome 101, use <code>excludedInitiatorDomains</code> instead."
+                  "notes": "Deprecated in Chrome 101, use `excludedInitiatorDomains` instead."
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1107,12 +1107,110 @@
               }
             }
           },
+          "excludedResponseHeaders": {
+            "__compat": {
+              "support": {
+                "chrome": {
+                  "version_added": "128"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            },
+            "excludedValues": {
+              "__compat": {
+                "support": {
+                  "chrome": {
+                    "version_added": "128",
+                    "notes": "From Chrome 121 until Chrome 127, this condition was recognized but not applied."
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": false
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            },
+            "header": {
+              "__compat": {
+                "support": {
+                  "chrome": {
+                    "version_added": "128",
+                    "notes": "From Chrome 121 until Chrome 127, this condition was recognized but not applied."
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": false
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            },
+            "values": {
+              "__compat": {
+                "support": {
+                  "chrome": {
+                    "version_added": "128",
+                    "notes": "From Chrome 121 until Chrome 127, this condition was recognized but not applied."
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": false
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            }
+          },
+          "initiatorDomains": {
+            "__compat": {
+              "support": {
+                "chrome": {
+                  "version_added": "101"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "113"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
           "isUrlFilterCaseSensitive": {
             "__compat": {
               "support": {
                 "chrome": {
                   "version_added": "84",
-                  "notes": "The default value changed from <code>true</code> to <code>false</code> in Chrome 118."
+                  "notes": "The default value changed from `true` to `false` in Chrome 118."
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1122,7 +1220,7 @@
                 "opera": "mirror",
                 "safari": {
                   "version_added": "15",
-                  "notes": "The default value changed from <code>true</code> to <code>false</code> in Safari 16.4."
+                  "notes": "The default value changed from `true` to `false` in Safari 16.4."
                 },
                 "safari_ios": "mirror"
               }
@@ -1166,6 +1264,85 @@
               }
             }
           },
+          "responseHeaders": {
+            "__compat": {
+              "support": {
+                "chrome": {
+                  "version_added": "128"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            },
+            "excludedValues": {
+              "__compat": {
+                "support": {
+                  "chrome": {
+                    "version_added": "128",
+                    "notes": "From Chrome 121 until Chrome 127, this condition was recognized but not applied."
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": false
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            },
+            "header": {
+              "__compat": {
+                "support": {
+                  "chrome": {
+                    "version_added": "128",
+                    "notes": "From Chrome 121 until Chrome 127, this condition was recognized but not applied."
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": false
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            },
+            "values": {
+              "__compat": {
+                "support": {
+                  "chrome": {
+                    "version_added": "128",
+                    "notes": "From Chrome 121 until Chrome 127, this condition was recognized but not applied."
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": false
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            }
+          },
           "tabIds": {
             "__compat": {
               "support": {
diff --git a/webextensions/api/devtools.json b/webextensions/api/devtools.json
index 51513cce9a2b1b..e6907d45a6e388 100644
--- a/webextensions/api/devtools.json
+++ b/webextensions/api/devtools.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "4"
             },
             "edge": "mirror",
             "firefox": {
@@ -31,7 +31,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/inspectedWindow",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -54,7 +54,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/inspectedWindow/eval",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -145,7 +145,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/inspectedWindow/reload",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -169,7 +169,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/inspectedWindow/tabId",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -194,7 +194,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/network",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -217,7 +217,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/network/getHAR",
               "support": {
                 "chrome": {
-                  "version_added": "≤64"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -240,7 +240,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/network/onNavigated",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -264,7 +264,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/network/onRequestFinished",
               "support": {
                 "chrome": {
-                  "version_added": "≤64"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": [
@@ -294,7 +294,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -320,7 +320,7 @@
                 "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels/ElementsPanel/createSidebarPane",
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -342,7 +342,7 @@
                 "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels/ElementsPanel/onSelectionChanged",
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -365,7 +365,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -388,7 +388,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤59"
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -407,7 +407,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -433,12 +433,12 @@
                 "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels/ExtensionSidebarPane/onHidden",
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
                     "version_added": "57",
-                    "notes": "This event is only fired when the user switches between sidebar panes, not when the user switches between devtools panels. See <a href='https://bugzil.la/1412317'>bug 1412317</a>."
+                    "notes": "This event is only fired when the user switches between sidebar panes, not when the user switches between devtools panels. See [bug 1412317](https://bugzil.la/1412317)."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -456,12 +456,12 @@
                 "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels/ExtensionSidebarPane/onShown",
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
                     "version_added": "57",
-                    "notes": "This event is only fired when the user switches between sidebar panes, not when the user switches between devtools panels. See <a href='https://bugzil.la/1412317'>bug 1412317</a>."
+                    "notes": "This event is only fired when the user switches between sidebar panes, not when the user switches between devtools panels. See [bug 1412317](https://bugzil.la/1412317)."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -479,20 +479,18 @@
                 "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels/ExtensionSidebarPane/setExpression",
                 "support": {
                   "chrome": {
-                    "version_added": "≤61",
+                    "version_added": "18",
                     "notes": "The expression must evaluate to a JavaScript object or a DOM node, or nothing is shown in the sidebar."
                   },
                   "edge": "mirror",
                   "firefox": {
                     "version_added": "57",
-                    "notes": "Before Firefox 60, the expression must evaluate to an object that can be serialized to JSON, or nothing was shown in the sidebar. In particular, JavaScript cyclic objects and DOM nodes were not supported. See <a href='https://bugzil.la/1403130'>bug 1403130</a>."
+                    "notes": "Before Firefox 60, the expression must evaluate to an object that can be serialized to JSON, or nothing was shown in the sidebar. In particular, JavaScript cyclic objects and DOM nodes were not supported. See [bug 1403130](https://bugzil.la/1403130)."
                   },
                   "firefox_android": {
                     "version_added": false
                   },
-                  "opera": {
-                    "version_added": true
-                  },
+                  "opera": "mirror",
                   "safari": {
                     "version_added": false
                   },
@@ -504,7 +502,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": true
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -524,20 +522,18 @@
                 "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels/ExtensionSidebarPane/setObject",
                 "support": {
                   "chrome": {
-                    "version_added": "≤61",
-                    "notes": "If the <code>jsonObject</code> parameter is a string, it is not displayed."
+                    "version_added": "18",
+                    "notes": "If the `jsonObject` parameter is a string, it is not displayed."
                   },
                   "edge": "mirror",
                   "firefox": {
                     "version_added": "57",
-                    "notes": "If the <code>jsonObject</code> is a string, then <code>rootTitle</code> must also be given, or <code>jsonObject</code> will not be displayed. See <a href='https://bugzil.la/1412310'>bug 1412310</a>."
+                    "notes": "If the `jsonObject` is a string, then `rootTitle` must also be given, or `jsonObject` will not be displayed. See [bug 1412310](https://bugzil.la/1412310)."
                   },
                   "firefox_android": {
                     "version_added": false
                   },
-                  "opera": {
-                    "version_added": true
-                  },
+                  "opera": "mirror",
                   "safari": {
                     "version_added": false
                   },
@@ -550,7 +546,7 @@
                 "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels/ExtensionSidebarPane/setPage",
                 "support": {
                   "chrome": {
-                    "version_added": true
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -573,7 +569,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels/create",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -595,7 +591,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": true,
+                    "version_added": "18",
                     "notes": "URL always resolved as absolute."
                   },
                   "edge": "mirror",
@@ -621,7 +617,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": true,
+                    "version_added": "18",
                     "notes": "URL always resolved as absolute."
                   },
                   "edge": "mirror",
@@ -647,7 +643,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": true
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -672,7 +668,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels/elements",
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
diff --git a/webextensions/api/dns.json b/webextensions/api/dns.json
index 0e5cd908a61c1e..93198d7477d376 100644
--- a/webextensions/api/dns.json
+++ b/webextensions/api/dns.json
@@ -7,7 +7,7 @@
           "support": {
             "chrome": {
               "version_added": "preview",
-              "notes": "The required <code>dns</code> permission is only supported in Chrome Dev."
+              "notes": "The required `dns` permission is only supported in Chrome Dev."
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +27,7 @@
             "support": {
               "chrome": {
                 "version_added": "preview",
-                "notes": "The required <code>dns</code> permission is only supported in Chrome Dev."
+                "notes": "The required `dns` permission is only supported in Chrome Dev."
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/dom.json b/webextensions/api/dom.json
index 9dea5510c83d69..b1e25235a8060e 100644
--- a/webextensions/api/dom.json
+++ b/webextensions/api/dom.json
@@ -30,7 +30,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": false,
-                "notes": "Use <code>element.openOrClosedShadowRoot</code>, available since Firefox 63."
+                "notes": "Use `element.openOrClosedShadowRoot`, available since Firefox 63."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
diff --git a/webextensions/api/downloads.json b/webextensions/api/downloads.json
index 071ffa9eee2eb7..07d18fa8ff7404 100644
--- a/webextensions/api/downloads.json
+++ b/webextensions/api/downloads.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "22"
             },
             "edge": "mirror",
             "firefox": {
@@ -28,7 +28,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/BooleanDelta",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "29"
               },
               "edge": "mirror",
               "firefox": {
@@ -51,7 +51,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/DangerType",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -73,9 +73,16 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/DoubleDelta",
             "support": {
-              "chrome": {
-                "version_added": "≤58"
-              },
+              "chrome": [
+                {
+                  "version_added": "34"
+                },
+                {
+                  "alternative_name": "LongDelta",
+                  "version_added": "22",
+                  "version_removed": "34"
+                }
+              ],
               "edge": "mirror",
               "firefox": {
                 "version_added": "47"
@@ -97,7 +104,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "30"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -119,7 +126,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "30"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -141,7 +148,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -163,7 +170,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "30"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -206,7 +213,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -228,7 +235,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -247,7 +254,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -269,7 +276,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "30"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -291,7 +298,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -313,7 +320,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -335,7 +342,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -357,7 +364,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -379,7 +386,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -401,7 +408,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -423,7 +430,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -445,7 +452,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "30"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -467,7 +474,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -489,7 +496,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -511,7 +518,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -533,7 +540,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -557,7 +564,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/DownloadQuery",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -578,7 +585,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -621,7 +628,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -643,7 +650,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -667,7 +674,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -691,7 +698,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -710,7 +717,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -732,7 +739,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -754,7 +761,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -776,7 +783,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -798,7 +805,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -820,7 +827,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -842,7 +849,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -864,7 +871,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -886,7 +893,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -908,7 +915,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -930,7 +937,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -952,7 +959,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -974,7 +981,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -996,7 +1003,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1018,7 +1025,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1040,7 +1047,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1062,7 +1069,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1084,7 +1091,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1106,7 +1113,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1128,7 +1135,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1152,7 +1159,9 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/DownloadTime",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22",
+                "partial_implementation": true,
+                "notes": "Only accepts a string."
               },
               "edge": "mirror",
               "firefox": {
@@ -1175,7 +1184,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/FilenameConflictAction",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "28"
               },
               "edge": "mirror",
               "firefox": {
@@ -1196,7 +1205,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "28"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1217,7 +1226,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/InterruptReason",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "30"
               },
               "edge": "mirror",
               "firefox": {
@@ -1240,7 +1249,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/State",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1263,7 +1272,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/StringDelta",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "29"
               },
               "edge": "mirror",
               "firefox": {
@@ -1286,7 +1295,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/acceptDanger",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1306,7 +1315,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/cancel",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1329,7 +1338,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/download",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1371,7 +1380,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1393,7 +1402,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "28"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1436,7 +1445,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1458,12 +1467,12 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "47",
-                  "notes": "<code>Referer</code> headers supported from version 70."
+                  "notes": "`Referer` headers supported from version 70."
                 },
                 "firefox_android": {
                   "version_added": "48",
@@ -1503,7 +1512,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1527,7 +1536,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1551,7 +1560,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/erase",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1574,7 +1583,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/getFileIcon",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1596,7 +1605,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/onChanged",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1619,7 +1628,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/onCreated",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1642,7 +1651,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/onErased",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1665,7 +1674,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/open",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1688,7 +1697,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/pause",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1711,7 +1720,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/removeFile",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "30"
               },
               "edge": "mirror",
               "firefox": {
@@ -1734,7 +1743,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/resume",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1757,7 +1766,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/search",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1780,7 +1789,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/setShelfEnabled",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "30"
               },
               "edge": "mirror",
               "firefox": {
@@ -1800,7 +1809,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/show",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -1823,7 +1832,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/downloads/showDefaultFolder",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "30"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/events.json b/webextensions/api/events.json
index e3d5a92e31024b..017e8b5a321f49 100644
--- a/webextensions/api/events.json
+++ b/webextensions/api/events.json
@@ -12,7 +12,7 @@
               "version_added": "14"
             },
             "firefox": {
-              "version_added": true
+              "version_added": "≤50"
             },
             "firefox_android": "mirror",
             "opera": "mirror",
@@ -35,7 +35,7 @@
                 "version_added": "14"
               },
               "firefox": {
-                "version_added": true
+                "version_added": "≤53"
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -49,6 +49,7 @@
           },
           "addListener": {
             "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/events/Event/addListener",
               "support": {
                 "chrome": {
                   "version_added": "≤65"
@@ -57,7 +58,7 @@
                   "version_added": "14"
                 },
                 "firefox": {
-                  "version_added": true
+                  "version_added": "≤59"
                 },
                 "firefox_android": "mirror",
                 "opera": "mirror",
@@ -72,6 +73,7 @@
           },
           "addRules": {
             "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/events/Event/addRules",
               "support": {
                 "chrome": {
                   "version_added": "≤65"
@@ -91,6 +93,7 @@
           },
           "getRules": {
             "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/events/Event/getRules",
               "support": {
                 "chrome": {
                   "version_added": "≤65"
@@ -110,6 +113,7 @@
           },
           "hasListener": {
             "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/events/Event/hasListener",
               "support": {
                 "chrome": {
                   "version_added": "≤65"
@@ -118,7 +122,7 @@
                   "version_added": "14"
                 },
                 "firefox": {
-                  "version_added": true
+                  "version_added": "≤59"
                 },
                 "firefox_android": "mirror",
                 "opera": "mirror",
@@ -133,6 +137,7 @@
           },
           "hasListeners": {
             "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/events/Event/hasListeners",
               "support": {
                 "chrome": {
                   "version_added": "≤65"
@@ -152,6 +157,7 @@
           },
           "removeListener": {
             "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/events/Event/removeListener",
               "support": {
                 "chrome": {
                   "version_added": "≤65"
@@ -160,7 +166,7 @@
                   "version_added": "14"
                 },
                 "firefox": {
-                  "version_added": true
+                  "version_added": "≤59"
                 },
                 "firefox_android": "mirror",
                 "opera": "mirror",
@@ -175,6 +181,7 @@
           },
           "removeRules": {
             "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/events/Event/removeRules",
               "support": {
                 "chrome": {
                   "version_added": "≤65"
diff --git a/webextensions/api/extension.json b/webextensions/api/extension.json
index d378f97a9274ae..5e516a5853cf7d 100644
--- a/webextensions/api/extension.json
+++ b/webextensions/api/extension.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "4"
             },
             "edge": {
               "version_added": "14"
@@ -29,7 +29,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/ViewType",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "44"
               },
               "edge": "mirror",
               "firefox": {
@@ -74,7 +74,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/getBackgroundPage",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -99,9 +99,16 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/getExtensionTabs",
             "support": {
-              "chrome": {
-                "version_added": "≤58"
-              },
+              "chrome": [
+                {
+                  "version_added": "5"
+                },
+                {
+                  "alternative_name": "getTabContentses",
+                  "version_added": "4",
+                  "version_removed": "19"
+                }
+              ],
               "edge": "mirror",
               "firefox": {
                 "version_added": false
@@ -122,7 +129,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/getURL",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -148,7 +155,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/getViews",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -174,7 +181,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤93"
+                  "version_added": "5"
                 },
                 "edge": {
                   "version_added": "14"
@@ -196,7 +203,7 @@
                   {
                     "version_added": "14",
                     "partial_implementation": true,
-                    "notes": "Filtering by <code>windowId</code> doesn't work when a tab is moved from one window to another."
+                    "notes": "Filtering by `windowId` doesn't work when a tab is moved from one window to another."
                   }
                 ],
                 "safari_ios": [
@@ -206,7 +213,7 @@
                   {
                     "version_added": "15",
                     "partial_implementation": true,
-                    "notes": "Filtering by <code>windowId</code> doesn't work when a tab is moved from one window to another."
+                    "notes": "Filtering by `windowId` doesn't work when a tab is moved from one window to another."
                   }
                 ]
               }
@@ -217,9 +224,17 @@
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/inIncognitoContext",
             "support": {
-              "chrome": {
-                "version_added": "≤58"
-              },
+              "chrome": [
+                {
+                  "version_added": "7"
+                },
+                {
+                  "alternative_name": "inIncognitoTab",
+                  "version_added": "5",
+                  "version_removed": "67",
+                  "notes": "Only supported in manifest v1."
+                }
+              ],
               "edge": {
                 "version_added": "17"
               },
@@ -237,7 +252,7 @@
                 {
                   "version_added": "14",
                   "partial_implementation": true,
-                  "notes": "Always returns <code>false</code>."
+                  "notes": "Always returns `false`."
                 }
               ],
               "safari_ios": [
@@ -247,7 +262,7 @@
                 {
                   "version_added": "15",
                   "partial_implementation": true,
-                  "notes": "Always returns <code>false</code>."
+                  "notes": "Always returns `false`."
                 }
               ]
             }
@@ -258,7 +273,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/isAllowedFileSchemeAccess",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "12"
               },
               "edge": "mirror",
               "firefox": {
@@ -269,12 +284,12 @@
               "safari": {
                 "version_added": "14",
                 "partial_implementation": true,
-                "notes": "Always returns <code>false</code>."
+                "notes": "Always returns `false`."
               },
               "safari_ios": {
                 "version_added": "15",
                 "partial_implementation": true,
-                "notes": "Always returns <code>false</code>."
+                "notes": "Always returns `false`."
               }
             }
           }
@@ -284,7 +299,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/isAllowedIncognitoAccess",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "12"
               },
               "edge": {
                 "version_added": "17"
@@ -301,7 +316,7 @@
                 {
                   "version_added": "14",
                   "partial_implementation": true,
-                  "notes": "Always returns <code>true</code>."
+                  "notes": "Always returns `true`."
                 }
               ],
               "safari_ios": [
@@ -311,7 +326,7 @@
                 {
                   "version_added": "15",
                   "partial_implementation": true,
-                  "notes": "Always returns <code>true</code>."
+                  "notes": "Always returns `true`."
                 }
               ]
             }
@@ -322,7 +337,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/lastError",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": "mirror",
               "firefox": {
@@ -344,7 +359,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/onRequest",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -364,7 +379,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/onRequestExternal",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -384,7 +399,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/sendRequest",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -406,7 +421,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/extension/setUpdateUrlData",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "9"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/extensionTypes.json b/webextensions/api/extensionTypes.json
index 39f2989d804ba7..339afb747cad62 100644
--- a/webextensions/api/extensionTypes.json
+++ b/webextensions/api/extensionTypes.json
@@ -21,12 +21,12 @@
             "safari": {
               "version_added": "14",
               "partial_implementation": true,
-              "notes": "These features are not exposed through the <code>extensionTypes</code> object."
+              "notes": "These features are not exposed through the `extensionTypes` object."
             },
             "safari_ios": {
               "version_added": "15",
               "partial_implementation": true,
-              "notes": "These features are not exposed through the <code>extensionTypes</code> object."
+              "notes": "These features are not exposed through the `extensionTypes` object."
             }
           }
         },
@@ -45,7 +45,7 @@
               "safari": {
                 "version_added": "18",
                 "partial_implementation": true,
-                "notes": "This feature is supported but not exposed through the <code>extensionTypes</code> object."
+                "notes": "This feature is supported but not exposed through the `extensionTypes` object."
               },
               "safari_ios": "mirror"
             }
diff --git a/webextensions/api/history.json b/webextensions/api/history.json
index b93ab2b31a912f..b8cb741e5e557a 100644
--- a/webextensions/api/history.json
+++ b/webextensions/api/history.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "5"
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +27,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/HistoryItem",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -47,7 +47,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "5"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -68,7 +68,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/TransitionType",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "44"
               },
               "edge": "mirror",
               "firefox": {
@@ -90,7 +90,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/VisitItem",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -112,7 +112,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/addUrl",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -197,7 +197,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/deleteAll",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -219,7 +219,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/deleteRange",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -241,7 +241,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/deleteUrl",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -263,7 +263,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/getVisits",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -329,7 +329,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/onVisited",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -352,7 +352,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/onVisitRemoved",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -374,7 +374,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/history/search",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/i18n.json b/webextensions/api/i18n.json
index c89ded6ccb16df..c78cc47feb9db3 100644
--- a/webextensions/api/i18n.json
+++ b/webextensions/api/i18n.json
@@ -123,7 +123,7 @@
               },
               "firefox": {
                 "version_added": "45",
-                "notes": "Firefox 47 and earlier returns \"??\" instead of \"\" if the message is not found in _locales, <a href='https://bugzil.la/1258199'>bug 1258199</a> changed this act to match Chrome, landed on Firefox 48."
+                "notes": "Firefox 47 and earlier returns \"??\" instead of \"\" if the message is not found in _locales, [bug 1258199](https://bugzil.la/1258199) changed this act to match Chrome, landed on Firefox 48."
               },
               "firefox_android": {
                 "version_added": "48"
@@ -150,7 +150,7 @@
               },
               "firefox": {
                 "version_added": "47",
-                "notes": "Firefox 55 and earlier returns a language tag that's separated with the underscore character instead of hyphen, see <a href='https://bugzil.la/1374552'>bug 1374552</a>."
+                "notes": "Firefox 55 and earlier returns a language tag that's separated with the underscore character instead of hyphen, see [bug 1374552](https://bugzil.la/1374552)."
               },
               "firefox_android": {
                 "version_added": "48"
diff --git a/webextensions/api/identity.json b/webextensions/api/identity.json
index 378612a1e99bf1..a4aecb25068507 100644
--- a/webextensions/api/identity.json
+++ b/webextensions/api/identity.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/identity",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "29"
             },
             "edge": "mirror",
             "firefox": {
@@ -29,7 +29,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/identity/getRedirectURL",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "33"
               },
               "edge": "mirror",
               "firefox": {
@@ -53,7 +53,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/identity/launchWebAuthFlow",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "29"
               },
               "edge": "mirror",
               "firefox": {
@@ -81,9 +81,9 @@
                 "firefox": {
                   "version_added": "53",
                   "notes": [
-                    "Since Firefox 86, the <code>redirect_url</code> parameter now supports a loopback address, see <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/identity#getting_the_redirect_url'>Getting the redirect URL</a> for details.",
-                    "Between Firefox 75 and Firefox 86, the <code>redirect_uri</code> URL parameter must be set to the URL returned by <code>identity.getRedirectURL()</code>.",
-                    "Between Firefox 63 and Firefox 75, the <code>redirect_uri</code> URL parameter was optional."
+                    "Since Firefox 86, the `redirect_url` parameter now supports a loopback address, see [Getting the redirect URL](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/identity#getting_the_redirect_url) for details.",
+                    "Between Firefox 75 and Firefox 86, the `redirect_uri` URL parameter must be set to the URL returned by `identity.getRedirectURL()`.",
+                    "Between Firefox 63 and Firefox 75, the `redirect_uri` URL parameter was optional."
                   ]
                 },
                 "firefox_android": {
diff --git a/webextensions/api/idle.json b/webextensions/api/idle.json
index a3cf0db265fc87..9bd557a1dfae80 100644
--- a/webextensions/api/idle.json
+++ b/webextensions/api/idle.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/idle",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "6"
             },
             "edge": {
               "version_added": "15"
@@ -51,7 +51,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/idle/onStateChanged",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": "mirror",
               "firefox": {
@@ -90,7 +90,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/idle/queryState",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": {
                 "version_added": "15"
diff --git a/webextensions/api/management.json b/webextensions/api/management.json
index 78d818acdfb46f..ce7f532eb3a4e8 100644
--- a/webextensions/api/management.json
+++ b/webextensions/api/management.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/management",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "8"
             },
             "edge": "mirror",
             "firefox": {
@@ -25,7 +25,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/management/ExtensionInfo",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "8"
               },
               "edge": "mirror",
               "firefox": {
@@ -62,7 +62,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "8"
                 },
                 "edge": "mirror",
                 "firefox": [
@@ -168,7 +168,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/management/getAll",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "8"
               },
               "edge": "mirror",
               "firefox": {
@@ -254,7 +254,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "63",
-                "notes": "The installable file pointed to by <code>url</code> must be a <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/Themes'>theme</a>, and not a normal browser extension."
+                "notes": "The installable file pointed to by `url` must be a [theme](https://developer.mozilla.org/docs/Mozilla/Add-ons/Themes), and not a normal browser extension."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -270,12 +270,12 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/management/onDisabled",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "8"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "55",
-                "notes": "Before version 56, only extensions whose <code>type</code> is <code>'theme'</code> are supported."
+                "notes": "Before version 56, only extensions whose `type` is `'theme'` are supported."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -291,12 +291,12 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/management/onEnabled",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "8"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "55",
-                "notes": "Before version 56, only extensions whose <code>type</code> is <code>'theme'</code> are supported."
+                "notes": "Before version 56, only extensions whose `type` is `'theme'` are supported."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -312,12 +312,12 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/management/onInstalled",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "8"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "55",
-                "notes": "Before version 56, only extensions whose <code>type</code> is <code>'theme'</code> are supported."
+                "notes": "Before version 56, only extensions whose `type` is `'theme'` are supported."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -333,14 +333,14 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/management/onUninstalled",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "8"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "55",
                 "notes": [
-                  "Before version 56, only extensions whose <code>type</code> is <code>'theme'</code> are supported.",
-                  "This event is not fired when the extension is in the \"pending uninstall\" state. The event is fired as expected once the extension is completely removed (for example, when the <code>about:addons</code> tab is closed)."
+                  "Before version 56, only extensions whose `type` is `'theme'` are supported.",
+                  "This event is not fired when the extension is in the \"pending uninstall\" state. The event is fired as expected once the extension is completely removed (for example, when the `about:addons` tab is closed)."
                 ]
               },
               "firefox_android": "mirror",
@@ -357,7 +357,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/management/setEnabled",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "8"
               },
               "edge": "mirror",
               "firefox": {
@@ -378,7 +378,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/management/uninstall",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "8"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/menus.json b/webextensions/api/menus.json
index 2df500c4e960d6..0993753a4eae60 100644
--- a/webextensions/api/menus.json
+++ b/webextensions/api/menus.json
@@ -7,7 +7,7 @@
           "support": {
             "chrome": {
               "alternative_name": "contextMenus",
-              "version_added": true
+              "version_added": "6"
             },
             "edge": "mirror",
             "firefox": [
@@ -38,7 +38,7 @@
             "support": {
               "chrome": {
                 "alternative_name": "contextMenus.ACTION_MENU_TOP_LEVEL_LIMIT",
-                "version_added": true
+                "version_added": "38"
               },
               "edge": "mirror",
               "firefox": [
@@ -70,7 +70,7 @@
             "support": {
               "chrome": {
                 "alternative_name": "contextMenus.ContextType",
-                "version_added": true
+                "version_added": "26"
               },
               "edge": "mirror",
               "firefox": [
@@ -100,7 +100,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true,
+                  "version_added": "85",
                   "notes": "Available for use in Manifest V3 or later."
                 },
                 "edge": "mirror",
@@ -127,7 +127,7 @@
               "support": {
                 "chrome": {
                   "version_added": false,
-                  "impl_url": "https://crbug.com/825443"
+                  "impl_url": "https://crbug.com/41378677"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -148,7 +148,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true,
+                  "version_added": "38",
                   "notes": "Available for use in Manifest V2 only."
                 },
                 "edge": "mirror",
@@ -156,7 +156,7 @@
                   "version_added": "53",
                   "notes": [
                     "Available for use in Manifest V2 only.",
-                    "'The <code>editable</code> context does not include password fields. Use the <code>password</code> context for this."
+                    "'The `editable` context does not include password fields. Use the `password` context for this."
                   ]
                 },
                 "firefox_android": {
@@ -177,7 +177,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "26"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -198,7 +198,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true,
+                  "version_added": "38",
                   "notes": "Available for use in Manifest V2 only."
                 },
                 "edge": "mirror",
@@ -272,7 +272,7 @@
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "56",
-                  "notes": "Only available at <code>menus.ContextType</code>, not at <code>contextMenus.ContextType</code>."
+                  "notes": "Only available at `menus.ContextType`, not at `contextMenus.ContextType`."
                 },
                 "firefox_android": {
                   "version_added": false
@@ -292,7 +292,7 @@
             "support": {
               "chrome": {
                 "alternative_name": "contextMenus.ItemType",
-                "version_added": true
+                "version_added": "44"
               },
               "edge": "mirror",
               "firefox": [
@@ -324,7 +324,7 @@
             "support": {
               "chrome": {
                 "alternative_name": "contextMenus.OnClickData",
-                "version_added": true
+                "version_added": "7"
               },
               "edge": "mirror",
               "firefox": [
@@ -464,12 +464,12 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "≤95"
                 },
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "48",
-                  "notes": "Between Firefox 59 and Firefox 94, this returns a post-redirect URL rather than the raw value of the <code>src</code> attribute of the clicked element."
+                  "notes": "Between Firefox 59 and Firefox 94, this returns a post-redirect URL rather than the raw value of the `src` attribute of the clicked element."
                 },
                 "firefox_android": {
                   "version_added": false
@@ -512,7 +512,7 @@
             "support": {
               "chrome": {
                 "alternative_name": "contextMenus.create",
-                "version_added": true,
+                "version_added": "≤58",
                 "notes": "Items that don't specify 'contexts' do not inherit contexts from their parents."
               },
               "edge": "mirror",
@@ -542,10 +542,10 @@
           },
           "accessKey": {
             "__compat": {
-              "description": "<code>&amp;</code> in <code>title</code> sets access key",
+              "description": "`&amp;` in `title` sets access key",
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": "≤69"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -558,7 +558,7 @@
                 "safari": {
                   "version_added": "14",
                   "partial_implementation": true,
-                  "notes": "Safari removes <code>&amp;</code> from menu items' displayed titles, but does not support invoking menu items via access keys."
+                  "notes": "Safari removes `&amp;` from menu items' displayed titles, but does not support invoking menu items via access keys."
                 },
                 "safari_ios": {
                   "version_added": false
@@ -664,7 +664,7 @@
             "support": {
               "chrome": {
                 "alternative_name": "contextMenus.onClicked",
-                "version_added": true
+                "version_added": "≤58"
               },
               "edge": "mirror",
               "firefox": [
@@ -802,7 +802,7 @@
             "support": {
               "chrome": {
                 "alternative_name": "contextMenus.remove",
-                "version_added": true
+                "version_added": "≤58"
               },
               "edge": "mirror",
               "firefox": [
@@ -834,7 +834,7 @@
             "support": {
               "chrome": {
                 "alternative_name": "contextMenus.removeAll",
-                "version_added": true
+                "version_added": "≤58"
               },
               "edge": "mirror",
               "firefox": [
@@ -866,7 +866,7 @@
             "support": {
               "chrome": {
                 "alternative_name": "contextMenus.update",
-                "version_added": true
+                "version_added": "≤58"
               },
               "edge": "mirror",
               "firefox": [
diff --git a/webextensions/api/notifications.json b/webextensions/api/notifications.json
index 716d9038b3888b..1246d22802dc22 100644
--- a/webextensions/api/notifications.json
+++ b/webextensions/api/notifications.json
@@ -17,9 +17,7 @@
             "firefox_android": {
               "version_added": "48"
             },
-            "opera": {
-              "version_added": "25"
-            },
+            "opera": "mirror",
             "safari": {
               "version_added": false
             },
@@ -31,7 +29,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/notifications/NotificationOptions",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "28"
               },
               "edge": {
                 "version_added": "17"
@@ -53,7 +51,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤65"
+                  "version_added": "38"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -275,7 +273,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/notifications/TemplateType",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "28"
               },
               "edge": {
                 "version_added": "17"
@@ -440,9 +438,7 @@
               "firefox_android": {
                 "version_added": "48"
               },
-              "opera": {
-                "version_added": "25"
-              },
+              "opera": "mirror",
               "safari": {
                 "version_added": false
               },
@@ -453,7 +449,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "28"
                 },
                 "edge": "mirror",
                 "firefox": {
diff --git a/webextensions/api/pageAction.json b/webextensions/api/pageAction.json
index 8b6e3d3e34259a..9606fb7c45eb96 100644
--- a/webextensions/api/pageAction.json
+++ b/webextensions/api/pageAction.json
@@ -35,7 +35,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/pageAction/ImageDataType",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "23"
               },
               "edge": "mirror",
               "firefox": {
@@ -59,7 +59,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/pageAction/getPopup",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "14"
@@ -86,7 +86,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/pageAction/getTitle",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "14"
@@ -128,7 +128,7 @@
           },
           "returns_userSettings_isOnToolbar_property": {
             "__compat": {
-              "description": "<code>userSettings.isOnToolbar</code> in returned object",
+              "description": "`userSettings.isOnToolbar` in returned object",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -154,7 +154,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/pageAction/hide",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -201,7 +201,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/pageAction/onClicked",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -298,7 +298,7 @@
             "support": {
               "chrome": {
                 "version_added": "≤23",
-                "notes": "Before Chrome 23, <code>path</code> couldn't specify multiple icon files, but had to be a string specifying a single icon path."
+                "notes": "Before Chrome 23, `path` couldn't specify multiple icon files, but had to be a string specifying a single icon path."
               },
               "edge": {
                 "version_added": "14"
@@ -345,7 +345,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>path</code> and <code>imageData</code> properties of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `path` and `imageData` properties of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -371,7 +371,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/pageAction/setPopup",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": {
                 "version_added": "14"
@@ -394,7 +394,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>popup</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `popup` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -420,7 +420,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/pageAction/setTitle",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -444,7 +444,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>title</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `title` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -470,7 +470,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/pageAction/show",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
diff --git a/webextensions/api/permissions.json b/webextensions/api/permissions.json
index 537d9a716cb88b..2171c3635e1556 100644
--- a/webextensions/api/permissions.json
+++ b/webextensions/api/permissions.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/permissions",
           "support": {
             "chrome": {
-              "version_added": "≤59"
+              "version_added": "16"
             },
             "edge": "mirror",
             "firefox": {
@@ -29,7 +29,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/permissions/Permissions",
             "support": {
               "chrome": {
-                "version_added": "≤59"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -53,7 +53,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/permissions/contains",
             "support": {
               "chrome": {
-                "version_added": "≤59"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -77,7 +77,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/permissions/getAll",
             "support": {
               "chrome": {
-                "version_added": "≤59"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -101,7 +101,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/permissions/onAdded",
             "support": {
               "chrome": {
-                "version_added": "≤59"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -123,7 +123,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/permissions/onRemoved",
             "support": {
               "chrome": {
-                "version_added": "≤59"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -145,7 +145,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/permissions/remove",
             "support": {
               "chrome": {
-                "version_added": "≤59"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -157,11 +157,11 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "Removing <code>&lt;all_urls&gt;</code> or <code>*://*/*</code> origins will remove previously granted permission to request specific origin patterns and will stop automatically prompting the user for access to any visited website via the extension's access popover in the toolbar."
+                "notes": "Removing `&lt;all_urls&gt;` or `*://*/*` origins will remove previously granted permission to request specific origin patterns and will stop automatically prompting the user for access to any visited website via the extension's access popover in the toolbar."
               },
               "safari_ios": {
                 "version_added": "15",
-                "notes": "Removing <code>&lt;all_urls&gt;</code> or <code>*://*/*</code> origins will remove previously granted permission to request specific origin patterns and will stop automatically prompting the user for access to any visited website via the extension's access popover in the toolbar."
+                "notes": "Removing `&lt;all_urls&gt;` or `*://*/*` origins will remove previously granted permission to request specific origin patterns and will stop automatically prompting the user for access to any visited website via the extension's access popover in the toolbar."
               }
             }
           }
@@ -171,16 +171,16 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/permissions/request",
             "support": {
               "chrome": {
-                "version_added": "≤59"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "55",
                 "notes": [
-                  "It's not possible to request permissions from within DevTools (<a href='https://bugzil.la/1796933'>bug 1796933</a>).",
-                  "Before version 101, permissions cannot be requested from a sidebar document (<a href='https://bugzil.la/1493396'>bug 1493396</a>).",
-                  "Before version 75, permissions cannot be requested from popup panels (see <a href='https://bugzil.la/1432083'>bug 1432083</a>).",
-                  "Before version 61, permissions cannot be requested from options pages embedded in <code>about:addons</code> (see <a href='https://bugzil.la/1382953'>bug 1382953</a>)."
+                  "It's not possible to request permissions from within DevTools ([bug 1796933](https://bugzil.la/1796933)).",
+                  "Before version 101, permissions cannot be requested from a sidebar document ([bug 1493396](https://bugzil.la/1493396)).",
+                  "Before version 75, permissions cannot be requested from popup panels (see [bug 1432083](https://bugzil.la/1432083)).",
+                  "Before version 61, permissions cannot be requested from options pages embedded in `about:addons` (see [bug 1382953](https://bugzil.la/1382953))."
                 ]
               },
               "firefox_android": {
@@ -190,7 +190,7 @@
               "safari": {
                 "version_added": "14",
                 "notes": [
-                  "Requesting <code>&lt;all_urls&gt;</code> or <code>*://*/*</code> origins will grant permission to request specific origin patterns and automatically prompt the user for access to any visited website via the extension's access popover in the toolbar.",
+                  "Requesting `&lt;all_urls&gt;` or `*://*/*` origins will grant permission to request specific origin patterns and automatically prompt the user for access to any visited website via the extension's access popover in the toolbar.",
                   "The user will be prompted again for permissions that have been previously granted and then removed.",
                   "Supported permissions will be granted without prompting the user. Only specific origin patterns will prompt the user."
                 ]
@@ -198,7 +198,7 @@
               "safari_ios": {
                 "version_added": "15",
                 "notes": [
-                  "Requesting <code>&lt;all_urls&gt;</code> or <code>*://*/*</code> origins will grant permission to request specific origin patterns and automatically prompt the user for access to any visited website via the extension's banner.",
+                  "Requesting `&lt;all_urls&gt;` or `*://*/*` origins will grant permission to request specific origin patterns and automatically prompt the user for access to any visited website via the extension's banner.",
                   "The user will be prompted again for permissions that have been previously granted and then removed.",
                   "Supported permissions will be granted without prompting the user. Only specific origin patterns will prompt the user."
                 ]
diff --git a/webextensions/api/privacy.json b/webextensions/api/privacy.json
index 6192e16e7c91e7..b832ed7a8575ca 100644
--- a/webextensions/api/privacy.json
+++ b/webextensions/api/privacy.json
@@ -62,7 +62,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
+                  "version_added": false
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -81,7 +81,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -119,12 +119,12 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "48"
                 },
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "54",
-                  "notes": "Starting in Firefox 70, a value of <code>disable_non_proxied_udp</code> requires a proxy if one is configured, but allows connections to go through if no proxy is set up. Previously, in this mode WebRTC could only be used if a proxy was configured and TURN over TCP was available; this behavior is now exposed as <code>proxy_only</code>."
+                  "notes": "Starting in Firefox 70, a value of `disable_non_proxied_udp` requires a proxy if one is configured, but allows connections to go through if no proxy is set up. Previously, in this mode WebRTC could only be used if a proxy was configured and TURN over TCP was available; this behavior is now exposed as `proxy_only`."
                 },
                 "firefox_android": {
                   "version_added": "54"
@@ -161,11 +161,9 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
-                },
-                "edge": {
-                  "version_added": "79"
+                  "version_added": "18"
                 },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": false
                 },
@@ -220,11 +218,9 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
-                },
-                "edge": {
-                  "version_added": "79"
+                  "version_added": "18"
                 },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": false
                 },
@@ -260,11 +256,9 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
-                },
-                "edge": {
-                  "version_added": "79"
+                  "version_added": "18"
                 },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": false
                 },
@@ -300,11 +294,9 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
-                },
-                "edge": {
-                  "version_added": "79"
+                  "version_added": "18"
                 },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": false
                 },
@@ -321,11 +313,9 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
-                },
-                "edge": {
-                  "version_added": "79"
+                  "version_added": "20"
                 },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": false
                 },
@@ -342,11 +332,9 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
-                },
-                "edge": {
-                  "version_added": "79"
+                  "version_added": "18"
                 },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": false
                 },
@@ -389,13 +377,13 @@
                 "firefox": {
                   "version_added": "59",
                   "notes": [
-                    "The <code>behavior</code> property value \"reject_trackers_and_partition_foreign\" was introduced in version 78.",
-                    "The <code>behavior</code> property value \"reject_trackers\" was introduced in version 64."
+                    "The `behavior` property value \"reject_trackers_and_partition_foreign\" was introduced in version 78.",
+                    "The `behavior` property value \"reject_trackers\" was introduced in version 64."
                   ]
                 },
                 "firefox_android": {
                   "version_added": "59",
-                  "notes": "The <code>behavior</code> property value \"reject_trackers\" was introduced in version 64."
+                  "notes": "The `behavior` property value \"reject_trackers\" was introduced in version 64."
                 },
                 "opera": "mirror",
                 "safari": {
@@ -466,11 +454,9 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": true
-                },
-                "edge": {
-                  "version_added": "79"
+                  "version_added": "18"
                 },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": "54"
                 },
@@ -487,7 +473,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "21"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -506,7 +492,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -544,7 +530,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
diff --git a/webextensions/api/proxy.json b/webextensions/api/proxy.json
index 2eebe6fc8010e0..bbd3fad9ca259d 100644
--- a/webextensions/api/proxy.json
+++ b/webextensions/api/proxy.json
@@ -7,7 +7,7 @@
           "support": {
             "chrome": {
               "version_added": false,
-              "notes": "The <code>proxy</code> namespace exists, but the behavior does not match the MDN documentation. See <a href='https://developer.chrome.com/docs/extensions/reference/api/proxy'>Chrome's proxy documentation</a> instead."
+              "notes": "The `proxy` namespace exists, but the behavior does not match the MDN documentation. See [Chrome's proxy documentation](https://developer.chrome.com/docs/extensions/reference/api/proxy) instead."
             },
             "edge": "mirror",
             "firefox": {
@@ -413,7 +413,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "60",
-                "notes": "Before version 78, the <code>tabId</code> and <code>windowId</code> filter properties are ignored."
+                "notes": "Before version 78, the `tabId` and `windowId` filter properties are ignored."
               },
               "firefox_android": {
                 "version_added": "60"
@@ -436,7 +436,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "60",
-                "notes": "From version 88, the <code>ftp</code> setting has no effect because FTP is no longer supported (see <a href='https://bugzil.la/1626365'>bug 1626365</a>)."
+                "notes": "From version 88, the `ftp` setting has no effect because FTP is no longer supported (see [bug 1626365](https://bugzil.la/1626365))."
               },
               "firefox_android": {
                 "version_added": false,
diff --git a/webextensions/api/runtime.json b/webextensions/api/runtime.json
index 49c8dd71cf74ee..b7b9184b18f7c5 100644
--- a/webextensions/api/runtime.json
+++ b/webextensions/api/runtime.json
@@ -518,16 +518,16 @@
               },
               "firefox_android": {
                 "version_added": false,
-                "notes": "Only available to privileged extensions in <a href='https://mozilla.github.io/geckoview/'>GeckoView</a> 68 and later. See the <a href='https://firefox-source-docs.mozilla.org/mobile/android/geckoview/consumer/web-extensions.html'>GeckoView Docs</a> for additional details."
+                "notes": "Only available to privileged extensions in [GeckoView](https://mozilla.github.io/geckoview/) 68 and later. See the [GeckoView Docs](https://firefox-source-docs.mozilla.org/mobile/android/geckoview/consumer/web-extensions.html) for additional details."
               },
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "See the <a href='https://developer.apple.com/documentation/safariservices/safari_web_extensions/messaging_between_the_app_and_javascript_in_a_safari_web_extension'>Apple Developer Documentation</a> for additional details."
+                "notes": "See the [Apple Developer Documentation](https://developer.apple.com/documentation/safariservices/safari_web_extensions/messaging_between_the_app_and_javascript_in_a_safari_web_extension) for additional details."
               },
               "safari_ios": {
                 "version_added": "15",
-                "notes": "See the <a href='https://developer.apple.com/documentation/safariservices/safari_web_extensions/messaging_between_the_app_and_javascript_in_a_safari_web_extension'>Apple Developer Documentation</a> for additional details."
+                "notes": "See the [Apple Developer Documentation](https://developer.apple.com/documentation/safariservices/safari_web_extensions/messaging_between_the_app_and_javascript_in_a_safari_web_extension) for additional details."
               }
             }
           }
@@ -542,11 +542,11 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "45",
-                "notes": "If this is called from a page that is part of a private browsing window, such as a sidebar in a private window or a popup opened from a private window, then it will always return <code>null</code>."
+                "notes": "If this is called from a page that is part of a private browsing window, such as a sidebar in a private window or a popup opened from a private window, then it will always return `null`."
               },
               "firefox_android": {
                 "version_added": "48",
-                "notes": "If this is called from a page that is part of a private browsing window, such as a sidebar in a private window or a popup opened from a private window, then it will always return <code>null</code>."
+                "notes": "If this is called from a page that is part of a private browsing window, such as a sidebar in a private window or a popup opened from a private window, then it will always return `null`."
               },
               "opera": "mirror",
               "safari": {
@@ -578,8 +578,9 @@
             }
           }
         },
-        "getContext": {
+        "getContexts": {
           "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/runtime/getContexts",
             "support": {
               "chrome": {
                 "version_added": "116"
@@ -740,7 +741,7 @@
             "support": {
               "chrome": {
                 "version_added": "≤58",
-                "notes": "<code>lastError</code> is not an <code>Error</code> object. Instead, it is a plain <code>Object</code> with the error text as the string value of the <code>message</code> property."
+                "notes": "`lastError` is not an `Error` object. Instead, it is a plain `Object` with the error text as the string value of the `message` property."
               },
               "edge": "mirror",
               "firefox": {
@@ -752,11 +753,11 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>lastError</code> is only set if a callback is used. <code>Promise</code> results that fail will be rejected with an <code>Error</code> object."
+                "notes": "`lastError` is only set if a callback is used. `Promise` results that fail will be rejected with an `Error` object."
               },
               "safari_ios": {
                 "version_added": "15",
-                "notes": "<code>lastError</code> is only set if a callback is used. <code>Promise</code> results that fail will be rejected with an <code>Error</code> object."
+                "notes": "`lastError` is only set if a callback is used. `Promise` results that fail will be rejected with an `Error` object."
               }
             }
           }
@@ -820,7 +821,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "15.4",
-                "notes": "Only fired in response to connect from webpages allowed in <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/externally_connectable'><code>externally_connectable</code></a>."
+                "notes": "Only fired in response to connect from webpages allowed in [`externally_connectable`](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/externally_connectable)."
               },
               "safari_ios": "mirror"
             }
@@ -958,14 +959,14 @@
           },
           "return_promise": {
             "__compat": {
-              "description": "Respond with <code>Promise</code>",
+              "description": "Respond with `Promise`",
               "support": {
                 "chrome": {
                   "version_added": false
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": true
+                  "version_added": "≤62"
                 },
                 "firefox_android": "mirror",
                 "opera": "mirror",
@@ -994,7 +995,7 @@
                 {
                   "version_added": "15.4",
                   "partial_implementation": true,
-                  "notes": "Also fired in response to a message from webpages allowed in <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/externally_connectable'><code>externally_connectable</code></a>."
+                  "notes": "Also fired in response to a message from webpages allowed in [`externally_connectable`](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/externally_connectable)."
                 },
                 {
                   "version_added": "14",
@@ -1006,7 +1007,7 @@
                 {
                   "version_added": "15.4",
                   "partial_implementation": true,
-                  "notes": "Also fired in response to a message from webpages allowed in <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/externally_connectable'><code>externally_connectable</code></a>."
+                  "notes": "Also fired in response to a message from webpages allowed in [`externally_connectable`](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/externally_connectable)."
                 },
                 {
                   "version_added": "15",
@@ -1018,14 +1019,14 @@
           },
           "return_promise": {
             "__compat": {
-              "description": "Respond with <code>Promise</code>",
+              "description": "Respond with `Promise`",
               "support": {
                 "chrome": {
                   "version_added": false
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": true
+                  "version_added": "≤62"
                 },
                 "firefox_android": "mirror",
                 "opera": "mirror",
@@ -1306,16 +1307,16 @@
               },
               "firefox_android": {
                 "version_added": false,
-                "notes": "Only available to privileged extensions in <a href='https://mozilla.github.io/geckoview/'>GeckoView</a> 68 and later. See the <a href='https://firefox-source-docs.mozilla.org/mobile/android/geckoview/consumer/web-extensions.html'>GeckoView Docs</a> for additional details."
+                "notes": "Only available to privileged extensions in [GeckoView](https://mozilla.github.io/geckoview/) 68 and later. See the [GeckoView Docs](https://firefox-source-docs.mozilla.org/mobile/android/geckoview/consumer/web-extensions.html) for additional details."
               },
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "See the <a href='https://developer.apple.com/documentation/safariservices/safari_web_extensions/messaging_between_the_app_and_javascript_in_a_safari_web_extension'>Apple Developer Documentation</a> for additional details."
+                "notes": "See the [Apple Developer Documentation](https://developer.apple.com/documentation/safariservices/safari_web_extensions/messaging_between_the_app_and_javascript_in_a_safari_web_extension) for additional details."
               },
               "safari_ios": {
                 "version_added": "15",
-                "notes": "See the <a href='https://developer.apple.com/documentation/safariservices/safari_web_extensions/messaging_between_the_app_and_javascript_in_a_safari_web_extension'>Apple Developer Documentation</a> for additional details."
+                "notes": "See the [Apple Developer Documentation](https://developer.apple.com/documentation/safariservices/safari_web_extensions/messaging_between_the_app_and_javascript_in_a_safari_web_extension) for additional details."
               }
             }
           }
diff --git a/webextensions/api/scripting.json b/webextensions/api/scripting.json
index 20aa42f169a617..8528440cf9fa05 100644
--- a/webextensions/api/scripting.json
+++ b/webextensions/api/scripting.json
@@ -105,7 +105,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/scripting/RegisteredContentScript",
             "support": {
               "chrome": {
-                "version_added": "88"
+                "version_added": "96"
               },
               "edge": "mirror",
               "firefox": {
@@ -144,14 +144,14 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "88"
+                  "version_added": "96"
                 },
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "102",
                   "notes": [
                     "Since Firefox 105, this option is optional and accepts any boolean value.",
-                    "Prior to Firefox 105, this option was required and only accepted the <code>false</code> value."
+                    "Prior to Firefox 105, this option was required and only accepted the `false` value."
                   ]
                 },
                 "firefox_android": "mirror",
@@ -172,7 +172,7 @@
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": false
+                  "version_added": "128"
                 },
                 "firefox_android": "mirror",
                 "opera": "mirror",
@@ -226,7 +226,7 @@
                 "support": {
                   "chrome": {
                     "version_added": false,
-                    "impl_url": "https://crbug.com/1271527"
+                    "impl_url": "https://crbug.com/40205757"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -362,7 +362,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/scripting/getRegisteredContentScripts",
             "support": {
               "chrome": {
-                "version_added": "88"
+                "version_added": "96"
               },
               "edge": "mirror",
               "firefox": {
@@ -422,7 +422,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/scripting/registerContentScripts",
             "support": {
               "chrome": {
-                "version_added": "88"
+                "version_added": "96"
               },
               "edge": "mirror",
               "firefox": {
@@ -482,7 +482,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/scripting/unregisterContentScripts",
             "support": {
               "chrome": {
-                "version_added": "88"
+                "version_added": "96"
               },
               "edge": "mirror",
               "firefox": {
@@ -503,7 +503,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/scripting/updateContentScripts",
             "support": {
               "chrome": {
-                "version_added": "88"
+                "version_added": "96"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/sessions.json b/webextensions/api/sessions.json
index 7c7f4b1bdb3adf..8e37da7c04c1c9 100644
--- a/webextensions/api/sessions.json
+++ b/webextensions/api/sessions.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/sessions",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "37"
             },
             "edge": "mirror",
             "firefox": {
@@ -27,7 +27,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/sessions/Filter",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "37"
               },
               "edge": "mirror",
               "firefox": {
@@ -49,7 +49,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/sessions/MAX_SESSION_RESULTS",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "37"
               },
               "edge": "mirror",
               "firefox": {
@@ -71,7 +71,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/sessions/Session",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "37"
               },
               "edge": "mirror",
               "firefox": {
@@ -138,7 +138,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/sessions/getRecentlyClosed",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "37"
               },
               "edge": "mirror",
               "firefox": {
@@ -204,7 +204,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/sessions/onChanged",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "37"
               },
               "edge": "mirror",
               "firefox": {
@@ -270,7 +270,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/sessions/restore",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "37"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/sidebarAction.json b/webextensions/api/sidebarAction.json
index 6eac68c2f5bdb4..063866525d9148 100644
--- a/webextensions/api/sidebarAction.json
+++ b/webextensions/api/sidebarAction.json
@@ -382,7 +382,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>path</code> and <code>imageData</code> properties of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `path` and `imageData` properties of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -451,7 +451,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>panel</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `panel` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -520,7 +520,7 @@
           },
           "null": {
             "__compat": {
-              "description": "The <code>title</code> property of the <code>details</code> parameter can be set to <code>null</code>.",
+              "description": "The `title` property of the `details` parameter can be set to `null`.",
               "support": {
                 "chrome": {
                   "version_added": false
diff --git a/webextensions/api/storage.json b/webextensions/api/storage.json
index a3ed5ecceafddc..917fe0100def62 100644
--- a/webextensions/api/storage.json
+++ b/webextensions/api/storage.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "19"
             },
             "edge": {
               "version_added": "14"
@@ -34,7 +34,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "14"
@@ -61,7 +61,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/clear",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "19"
                 },
                 "edge": {
                   "version_added": "14"
@@ -71,7 +71,7 @@
                 },
                 "firefox_android": {
                   "version_added": "48",
-                  "notes": "Doesn't support the <code>managed</code> storage area."
+                  "notes": "Doesn't support the `managed` storage area."
                 },
                 "opera": {
                   "version_added": "33"
@@ -90,7 +90,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/get",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "19"
                 },
                 "edge": {
                   "version_added": "14"
@@ -100,7 +100,7 @@
                 },
                 "firefox_android": {
                   "version_added": "48",
-                  "notes": "Doesn't support the <code>managed</code> storage area."
+                  "notes": "Doesn't support the `managed` storage area."
                 },
                 "opera": {
                   "version_added": "33"
@@ -118,7 +118,7 @@
                 "description": "Supports empty key",
                 "support": {
                   "chrome": {
-                    "version_added": true
+                    "version_added": "19"
                   },
                   "edge": {
                     "version_added": "14"
@@ -145,14 +145,17 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/getBytesInUse",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "19"
                 },
                 "edge": {
                   "version_added": "14"
                 },
                 "firefox": {
                   "version_added": "78",
-                  "notes": "Only supported by the <code>sync</code> storage area."
+                  "notes": [
+                    "Supported by the `sync` and, from Firefox 131, `session` storage areas.",
+                    "Not implemented in `local`, see [bug 138583](https://bugzil.la/138583)"
+                  ]
                 },
                 "firefox_android": {
                   "version_added": false
@@ -176,16 +179,12 @@
                 "chrome": {
                   "version_added": "73"
                 },
-                "edge": {
-                  "version_added": true
-                },
+                "edge": "mirror",
                 "firefox": {
                   "version_added": "101"
                 },
                 "firefox_android": "mirror",
-                "opera": {
-                  "version_added": true
-                },
+                "opera": "mirror",
                 "safari": {
                   "version_added": "14"
                 },
@@ -200,7 +199,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/remove",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "19"
                 },
                 "edge": {
                   "version_added": "14"
@@ -210,7 +209,7 @@
                 },
                 "firefox_android": {
                   "version_added": "48",
-                  "notes": "Doesn't support the <code>managed</code> storage area."
+                  "notes": "Doesn't support the `managed` storage area."
                 },
                 "opera": {
                   "version_added": "33"
@@ -228,7 +227,7 @@
                 "description": "Supports empty key",
                 "support": {
                   "chrome": {
-                    "version_added": true
+                    "version_added": "19"
                   },
                   "edge": {
                     "version_added": "14"
@@ -255,7 +254,7 @@
               "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/set",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "19"
                 },
                 "edge": {
                   "version_added": "14",
@@ -266,7 +265,7 @@
                 },
                 "firefox_android": {
                   "version_added": "48",
-                  "notes": "Doesn't support the <code>managed</code> storage area."
+                  "notes": "Doesn't support the `managed` storage area."
                 },
                 "opera": {
                   "version_added": "33"
@@ -307,7 +306,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageChange",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "14"
@@ -333,7 +332,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/local",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "14"
@@ -353,6 +352,208 @@
                 "version_added": "15"
               }
             }
+          },
+          "clear": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/clear",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "14"
+                },
+                "firefox": {
+                  "version_added": "45"
+                },
+                "firefox_android": {
+                  "version_added": "48"
+                },
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            }
+          },
+          "get": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/get",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "14"
+                },
+                "firefox": {
+                  "version_added": "45"
+                },
+                "firefox_android": {
+                  "version_added": "48"
+                },
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            },
+            "empty_key": {
+              "__compat": {
+                "description": "Supports empty key",
+                "support": {
+                  "chrome": {
+                    "version_added": "19"
+                  },
+                  "edge": {
+                    "version_added": "14"
+                  },
+                  "firefox": {
+                    "version_added": "45"
+                  },
+                  "firefox_android": {
+                    "version_added": "48"
+                  },
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            }
+          },
+          "getBytesInUse": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/getBytesInUse",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "14"
+                },
+                "firefox": {
+                  "version_added": false,
+                  "impl_url": "https://bugzil.la/1385832"
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            }
+          },
+          "onChanged": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/onChanged",
+              "support": {
+                "chrome": {
+                  "version_added": "73"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "101"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            }
+          },
+          "remove": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/remove",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "14"
+                },
+                "firefox": {
+                  "version_added": "45"
+                },
+                "firefox_android": {
+                  "version_added": "48"
+                },
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            },
+            "empty_key": {
+              "__compat": {
+                "description": "Supports empty key",
+                "support": {
+                  "chrome": {
+                    "version_added": "19"
+                  },
+                  "edge": {
+                    "version_added": "14"
+                  },
+                  "firefox": {
+                    "version_added": "45"
+                  },
+                  "firefox_android": {
+                    "version_added": "48"
+                  },
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            }
+          },
+          "set": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/set",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "14",
+                  "notes": "storage is limited to 1MB per value."
+                },
+                "firefox": {
+                  "version_added": "45"
+                },
+                "firefox_android": {
+                  "version_added": "48"
+                },
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            }
           }
         },
         "managed": {
@@ -360,7 +561,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/managed",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "33"
               },
               "edge": "mirror",
               "firefox": {
@@ -368,7 +569,7 @@
                 "notes": [
                   "Platform-specific storage backends, such as Windows registry keys, are not supported.",
                   "Enforcement of extension-provided storage schemas is not supported.",
-                  "The <code>onChanged</code> event is not supported."
+                  "The `onChanged` event is not supported."
                 ]
               },
               "firefox_android": {
@@ -382,53 +583,396 @@
               },
               "safari_ios": "mirror"
             }
-          }
-        },
-        "onChanged": {
-          "__compat": {
-            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/onChanged",
-            "support": {
-              "chrome": {
-                "version_added": "≤58"
-              },
-              "edge": {
-                "version_added": "14"
-              },
-              "firefox": {
-                "version_added": "45"
-              },
-              "firefox_android": {
-                "version_added": "48"
-              },
-              "opera": "mirror",
-              "safari": {
-                "version_added": "14"
-              },
-              "safari_ios": {
-                "version_added": "15"
+          },
+          "clear": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/clear",
+              "support": {
+                "chrome": {
+                  "version_added": "33"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "57"
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
               }
             }
-          }
-        },
-        "session": {
-          "__compat": {
-            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/session",
-            "support": {
-              "chrome": {
-                "version_added": "102",
-                "notes": "Before version 112, storage quota limits were 1MB."
-              },
-              "edge": "mirror",
-              "firefox": {
-                "version_added": "115"
-              },
-              "firefox_android": "mirror",
-              "opera": "mirror",
-              "safari": {
-                "version_added": "16.4"
-              },
+          },
+          "get": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/get",
+              "support": {
+                "chrome": {
+                  "version_added": "33"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "57"
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
+          "getBytesInUse": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/getBytesInUse",
+              "support": {
+                "chrome": {
+                  "version_added": "33",
+                  "notes": "Always resolves with a value of 0."
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
+          "onChanged": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/onChanged",
+              "support": {
+                "chrome": {
+                  "version_added": "73"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "101"
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
+          "remove": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/remove",
+              "support": {
+                "chrome": {
+                  "version_added": "33"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "57"
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
+          "set": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/set",
+              "support": {
+                "chrome": {
+                  "version_added": "33"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "57"
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          }
+        },
+        "onChanged": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/onChanged",
+            "support": {
+              "chrome": {
+                "version_added": "19"
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox": {
+                "version_added": "45"
+              },
+              "firefox_android": {
+                "version_added": "48"
+              },
+              "opera": "mirror",
+              "safari": {
+                "version_added": "14"
+              },
+              "safari_ios": {
+                "version_added": "15"
+              }
+            }
+          }
+        },
+        "session": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/session",
+            "support": {
+              "chrome": {
+                "version_added": "102",
+                "notes": "Before version 112, storage quota limits were 1MB."
+              },
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "115"
+              },
+              "firefox_android": "mirror",
+              "opera": "mirror",
+              "safari": {
+                "version_added": "16.4"
+              },
               "safari_ios": "mirror"
             }
+          },
+          "QUOTA_BYTES": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/session/QUOTA_BYTES",
+              "support": {
+                "chrome": {
+                  "version_added": "102"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "131"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "16.4"
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
+          "clear": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/clear",
+              "support": {
+                "chrome": {
+                  "version_added": "102"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "115"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "16.4"
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
+          "get": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/get",
+              "support": {
+                "chrome": {
+                  "version_added": "102"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "115"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "16.4"
+                },
+                "safari_ios": "mirror"
+              }
+            },
+            "empty_key": {
+              "__compat": {
+                "description": "Supports empty key",
+                "support": {
+                  "chrome": {
+                    "version_added": "102"
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": "115"
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            }
+          },
+          "getBytesInUse": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/getBytesInUse",
+              "support": {
+                "chrome": {
+                  "version_added": "102"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "131"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "16.4"
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
+          "onChanged": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/onChanged",
+              "support": {
+                "chrome": {
+                  "version_added": "102"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "115"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "16.4"
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
+          "remove": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/remove",
+              "support": {
+                "chrome": {
+                  "version_added": "102"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "115"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "16.4"
+                },
+                "safari_ios": "mirror"
+              }
+            },
+            "empty_key": {
+              "__compat": {
+                "description": "Supports empty key",
+                "support": {
+                  "chrome": {
+                    "version_added": "102"
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": "115"
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            }
+          },
+          "set": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/set",
+              "support": {
+                "chrome": {
+                  "version_added": "102"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "115"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "16.4"
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
+          "setAccessLevel": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/setAccessLevel",
+              "support": {
+                "chrome": {
+                  "version_added": "102"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "115"
+                },
+                "firefox_android": "mirror",
+                "opera": "mirror",
+                "safari": {
+                  "version_added": "16.4"
+                },
+                "safari_ios": "mirror"
+              }
+            }
           }
         },
         "sync": {
@@ -436,7 +980,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/sync",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": {
                 "version_added": "15"
@@ -446,8 +990,11 @@
                 "notes": "Before version 79, storage quota limits are not enforced."
               },
               "firefox_android": {
-                "version_added": true,
-                "notes": "Data isn't synchronized with the user's Mozilla account. See <a href='https://bugzil.la/1625257'>bug 1625257</a>."
+                "version_added": "53",
+                "notes": [
+                  "Data isn't synchronized with the user's Mozilla account. See [bug 1625257](https://bugzil.la/1625257).",
+                  "Storage quota limits are not enforced."
+                ]
               },
               "opera": {
                 "version_added": false
@@ -456,19 +1003,222 @@
                 "version_added": "14",
                 "partial_implementation": true,
                 "notes": [
-                  "Safari does not sync items saved in the <code>sync</code> storage area, i.e. it behaves the same as the <code>local</code> storage area.",
-                  "Safari 15 and 15.1 erroneously store sync items in the <code>local</code> storage area. If unable to locate sync items, check for sync items in the <code>local</code> storage area and do a one-time migration to the <code>sync</code> storage area."
+                  "Safari does not sync items saved in the `sync` storage area, i.e. it behaves the same as the `local` storage area.",
+                  "Safari 15 and 15.1 erroneously store sync items in the `local` storage area. If unable to locate sync items, check for sync items in the `local` storage area and do a one-time migration to the `sync` storage area."
                 ]
               },
               "safari_ios": {
                 "version_added": "15",
                 "partial_implementation": true,
                 "notes": [
-                  "Safari does not sync items saved in the <code>sync</code> storage area, i.e. it behaves the same as the <code>local</code> storage area.",
-                  "Safari 15 and 15.1 erroneously store sync items in the <code>local</code> storage area. If unable to locate sync items, check for sync items in the <code>local</code> storage area and do a one-time migration to the <code>sync</code> storage area."
+                  "Safari does not sync items saved in the `sync` storage area, i.e. it behaves the same as the `local` storage area.",
+                  "Safari 15 and 15.1 erroneously store sync items in the `local` storage area. If unable to locate sync items, check for sync items in the `local` storage area and do a one-time migration to the `sync` storage area."
                 ]
               }
             }
+          },
+          "clear": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/clear",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "15"
+                },
+                "firefox": {
+                  "version_added": "53"
+                },
+                "firefox_android": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            }
+          },
+          "get": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/get",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "15"
+                },
+                "firefox": {
+                  "version_added": "53"
+                },
+                "firefox_android": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            },
+            "empty_key": {
+              "__compat": {
+                "description": "Supports empty key",
+                "support": {
+                  "chrome": {
+                    "version_added": "19"
+                  },
+                  "edge": {
+                    "version_added": "15"
+                  },
+                  "firefox": {
+                    "version_added": "53"
+                  },
+                  "firefox_android": "mirror",
+                  "opera": {
+                    "version_added": false
+                  },
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            }
+          },
+          "getBytesInUse": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/getBytesInUse",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "15"
+                },
+                "firefox": {
+                  "version_added": "78"
+                },
+                "firefox_android": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            }
+          },
+          "onChanged": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/onChanged",
+              "support": {
+                "chrome": {
+                  "version_added": "73"
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "101"
+                },
+                "firefox_android": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            }
+          },
+          "remove": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/remove",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "15"
+                },
+                "firefox": {
+                  "version_added": "53"
+                },
+                "firefox_android": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            },
+            "empty_key": {
+              "__compat": {
+                "description": "Supports empty key",
+                "support": {
+                  "chrome": {
+                    "version_added": "19"
+                  },
+                  "edge": {
+                    "version_added": "15"
+                  },
+                  "firefox": {
+                    "version_added": "53"
+                  },
+                  "firefox_android": "mirror",
+                  "opera": {
+                    "version_added": false
+                  },
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            }
+          },
+          "set": {
+            "__compat": {
+              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/set",
+              "support": {
+                "chrome": {
+                  "version_added": "19"
+                },
+                "edge": {
+                  "version_added": "15",
+                  "notes": "storage is limited to 1MB per value."
+                },
+                "firefox": {
+                  "version_added": "53"
+                },
+                "firefox_android": "mirror",
+                "opera": {
+                  "version_added": false
+                },
+                "safari": {
+                  "version_added": "14"
+                },
+                "safari_ios": {
+                  "version_added": "15"
+                }
+              }
+            }
           }
         }
       }
diff --git a/webextensions/api/tabs.json b/webextensions/api/tabs.json
index 336499b7778844..31edb4f9d9e601 100644
--- a/webextensions/api/tabs.json
+++ b/webextensions/api/tabs.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs",
           "support": {
             "chrome": {
-              "version_added": "5"
+              "version_added": "4"
             },
             "edge": {
               "version_added": "14"
@@ -44,7 +44,7 @@
               "safari": {
                 "version_added": "14",
                 "partial_implementation": true,
-                "notes": "<code>reason</code> and <code>extensionId</code> will not be populated."
+                "notes": "`reason` and `extensionId` will not be populated."
               },
               "safari_ios": {
                 "version_added": false
@@ -617,7 +617,7 @@
                 },
                 "firefox_android": {
                   "version_added": "63",
-                  "notes": "While present, always returns <code>false</code>."
+                  "notes": "While present, always returns `false`."
                 },
                 "opera": "mirror",
                 "safari": {
@@ -957,7 +957,7 @@
                 "safari": {
                   "version_added": "14",
                   "partial_implementation": true,
-                  "notes": "<code>reason</code> and <code>extensionId</code> will not be populated."
+                  "notes": "`reason` and `extensionId` will not be populated."
                 },
                 "safari_ios": {
                   "version_added": false
@@ -1283,7 +1283,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/WindowType",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "44"
               },
               "edge": {
                 "version_added": "14"
@@ -1475,7 +1475,7 @@
               },
               "firefox": {
                 "version_added": "47",
-                "notes": "In Firefox 125 and earlier, only available with the <code>&lt;all_urls&gt;</code> permission. From Firefox 126, available with either the <code>&lt;all_urls&gt;</code> or <code>activeTab</code> permissions."
+                "notes": "In Firefox 125 and earlier, only available with the `&lt;all_urls&gt;` permission. From Firefox 126, available with either the `&lt;all_urls&gt;` or `activeTab` permissions."
               },
               "firefox_android": {
                 "version_added": "54"
@@ -1485,14 +1485,14 @@
                 "version_added": "14",
                 "notes": [
                   "The default file format is 'jpeg'.",
-                  "<code>&lt;all_urls&gt;</code> permission is optional."
+                  "`&lt;all_urls&gt;` permission is optional."
                 ]
               },
               "safari_ios": {
                 "version_added": "15",
                 "notes": [
                   "The default file format is 'jpeg'.",
-                  "<code>&lt;all_urls&gt;</code> permission is optional."
+                  "`&lt;all_urls&gt;` permission is optional."
                 ]
               }
             }
@@ -1539,12 +1539,12 @@
                   "safari": {
                     "version_added": "14",
                     "partial_implementation": true,
-                    "notes": "<code>name</code> is supported, but <code>frameId</code> is not."
+                    "notes": "`name` is supported, but `frameId` is not."
                   },
                   "safari_ios": {
                     "version_added": "15",
                     "partial_implementation": true,
-                    "notes": "<code>name</code> is supported, but <code>frameId</code> is not."
+                    "notes": "`name` is supported, but `frameId` is not."
                   }
                 }
               }
@@ -1862,7 +1862,7 @@
               "safari": {
                 "version_added": "14",
                 "notes": [
-                  "Returns <code>und</code> (undefined language) for macOS versions before 11.",
+                  "Returns `und` (undefined language) for macOS versions before 11.",
                   "Locale identifier will include the country code more often."
                 ]
               },
@@ -1881,8 +1881,8 @@
                 "notes": [
                   "Only accepts a single tab ID as a parameter, not an array.",
                   "The tab ID argument is optional: if it is omitted, the browser discards the least important tab.",
-                  "The callback is passed a <code>Tab</code> object representing the tab that was discarded.",
-                  "Tabs whose document contains a <a href='https://developer.mozilla.org/docs/Web/API/BeforeUnloadEvent'><code>beforeunload</code></a> listener that displays a prompt will be discarded."
+                  "The callback is passed a `Tab` object representing the tab that was discarded.",
+                  "Tabs whose document contains a [`beforeunload`](https://developer.mozilla.org/docs/Web/API/BeforeUnloadEvent) listener that displays a prompt will be discarded."
                 ]
               },
               "edge": {
@@ -2160,7 +2160,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/getSelected",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": "mirror",
               "firefox": {
@@ -2184,7 +2184,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/getZoom",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "42"
               },
               "edge": "mirror",
               "firefox": {
@@ -2296,7 +2296,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/highlight",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -2341,7 +2341,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/insertCSS",
             "support": {
               "chrome": {
-                "version_added": "≤20",
+                "version_added": "4",
                 "notes": "Available for use in Manifest V2 only."
               },
               "edge": {
@@ -2356,10 +2356,7 @@
                 "version_added": "54",
                 "notes": "Available for use in Manifest V2 only."
               },
-              "opera": {
-                "version_added": "15",
-                "notes": "Available for use in Manifest V2 only."
-              },
+              "opera": "mirror",
               "safari": {
                 "version_added": "14",
                 "notes": "Available for use in Manifest V2 only."
@@ -2464,7 +2461,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/move",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": "mirror",
               "firefox": {
@@ -2508,7 +2505,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onActivated",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": {
                 "version_added": "14"
@@ -2534,7 +2531,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onActiveChanged",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -2556,7 +2553,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onAttached",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "15"
@@ -2582,7 +2579,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onCreated",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -2608,7 +2605,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onDetached",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "15"
@@ -2634,7 +2631,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onHighlightChanged",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -2656,7 +2653,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onHighlighted",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": [
@@ -2666,12 +2663,12 @@
                 {
                   "version_added": "45",
                   "version_removed": "62",
-                  "notes": "Implemented as an alias for <code>onActivated</code>."
+                  "notes": "Implemented as an alias for `onActivated`."
                 }
               ],
               "firefox_android": {
                 "version_added": "54",
-                "notes": "Implemented as an alias for <code>onActivated</code>."
+                "notes": "Implemented as an alias for `onActivated`."
               },
               "opera": {
                 "version_added": false
@@ -2690,7 +2687,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onMoved",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": "mirror",
               "firefox": {
@@ -2714,7 +2711,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onRemoved",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -2740,7 +2737,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onReplaced",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "26"
               },
               "edge": "mirror",
               "firefox": {
@@ -2762,7 +2759,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onSelectionChanged",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": "mirror",
               "firefox": {
@@ -2784,7 +2781,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onUpdated",
             "support": {
               "chrome": {
-                "version_added": "≤54"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -2809,7 +2806,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "45"
                   },
                   "edge": {
                     "version_added": "14"
@@ -2855,7 +2852,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "54"
                   },
                   "edge": {
                     "version_added": "14"
@@ -2879,7 +2876,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "27"
                   },
                   "edge": {
                     "version_added": "14"
@@ -2902,7 +2899,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "46"
                   },
                   "edge": {
                     "version_added": "14"
@@ -2917,7 +2914,7 @@
                   "safari": {
                     "version_added": "14",
                     "partial_implementation": true,
-                    "notes": "<code>reason</code> and <code>extensionId</code> will not be populated."
+                    "notes": "`reason` and `extensionId` will not be populated."
                   },
                   "safari_ios": {
                     "version_added": false
@@ -2925,11 +2922,30 @@
                 }
               }
             },
+            "openerTabId": {
+              "__compat": {
+                "support": {
+                  "chrome": {
+                    "version_added": false
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": "131"
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            },
             "pinned": {
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "9"
                   },
                   "edge": {
                     "version_added": "14"
@@ -2955,7 +2971,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "4"
                   },
                   "edge": {
                     "version_added": "14"
@@ -2980,7 +2996,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤58"
+                    "version_added": "48"
                   },
                   "edge": {
                     "version_added": "14"
@@ -3007,7 +3023,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "4"
                   },
                   "edge": {
                     "version_added": "14"
@@ -3039,7 +3055,8 @@
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": "61"
+                  "version_added": "61",
+                  "notes": "Support for `openTabID` in `properties` added in Firefox 131."
                 },
                 "firefox_android": {
                   "version_added": false
@@ -3088,7 +3105,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/onZoomChange",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "38"
               },
               "edge": "mirror",
               "firefox": {
@@ -3154,11 +3171,11 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/query",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "16"
               },
               "edge": {
                 "version_added": "14",
-                "notes": "The <code>panel</code>, <code>app</code>, <code>devtools</code> and <code>popup</code> values for <code>WindowType</code> are not supported."
+                "notes": "The `panel`, `app`, `devtools` and `popup` values for `WindowType` are not supported."
               },
               "firefox": {
                 "version_added": "45"
@@ -3166,9 +3183,7 @@
               "firefox_android": {
                 "version_added": "54"
               },
-              "opera": {
-                "version_added": "15"
-              },
+              "opera": "mirror",
               "safari": {
                 "version_added": "14"
               },
@@ -3181,7 +3196,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤19"
+                  "version_added": "16"
                 },
                 "edge": {
                   "version_added": "14"
@@ -3192,9 +3207,7 @@
                 "firefox_android": {
                   "version_added": "54"
                 },
-                "opera": {
-                  "version_added": "15"
-                },
+                "opera": "mirror",
                 "safari": {
                   "version_added": "14"
                 },
@@ -3207,7 +3220,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "16"
                   },
                   "edge": {
                     "version_added": "14"
@@ -3373,23 +3386,23 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "16"
                   },
                   "edge": "mirror",
                   "firefox": {
                     "version_added": "60",
-                    "notes": "Treated as an alias for <code>queryInfo.active</code>."
+                    "notes": "Treated as an alias for `queryInfo.active`."
                   },
                   "firefox_android": [
                     {
                       "version_added": "61",
                       "version_removed": "79",
-                      "notes": "Treated as an alias for <code>queryInfo.active</code>."
+                      "notes": "Treated as an alias for `queryInfo.active`."
                     },
                     {
                       "version_added": "60",
                       "version_removed": "61",
-                      "notes": "Treated as an alias for <code>queryInfo.active</code> except when an extension has a popup open. In this situation, <code>queryInfo.highlighted</code> will return the popup, while <code>queryInfo.active</code> will return the tab that was selected before the popup opened."
+                      "notes": "Treated as an alias for `queryInfo.active` except when an extension has a popup open. In this situation, `queryInfo.highlighted` will return the popup, while `queryInfo.active` will return the tab that was selected before the popup opened."
                     }
                   ],
                   "opera": "mirror",
@@ -3479,7 +3492,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "18"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -3502,7 +3515,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "16"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -3526,7 +3539,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "16"
                   },
                   "edge": {
                     "version_added": "14"
@@ -3551,7 +3564,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "16"
                   },
                   "edge": {
                     "version_added": "14"
@@ -3576,7 +3589,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "16"
                   },
                   "edge": {
                     "version_added": "14"
@@ -3584,14 +3597,14 @@
                   "firefox": {
                     "version_added": "45",
                     "notes": [
-                      "Fails if the extension doesn't have the <code>tabs</code> permission.",
+                      "Fails if the extension doesn't have the `tabs` permission.",
                       "Before Firefox 56, moz-extension:// URLs were not allowed."
                     ]
                   },
                   "firefox_android": {
                     "version_added": "54",
                     "notes": [
-                      "Fails if the extension doesn't have the <code>tabs</code> permission.",
+                      "Fails if the extension doesn't have the `tabs` permission.",
                       "Before Firefox 56, moz-extension:// URLs were not allowed."
                     ]
                   },
@@ -3609,7 +3622,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "16"
                   },
                   "edge": {
                     "version_added": "14"
@@ -3634,7 +3647,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "16"
                   },
                   "edge": {
                     "version_added": "14"
@@ -3662,7 +3675,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/reload",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "16"
               },
               "edge": {
                 "version_added": "17"
@@ -3688,7 +3701,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/remove",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -3772,11 +3785,11 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/sendMessage",
             "support": {
               "chrome": {
-                "version_added": "≤41"
+                "version_added": "20"
               },
               "edge": {
                 "version_added": "14",
-                "notes": "No response is sent after the receiving tab is refreshed if there is no <code>runtime.onMessage</code> listener."
+                "notes": "No response is sent after the receiving tab is refreshed if there is no `runtime.onMessage` listener."
               },
               "firefox": {
                 "version_added": "45"
@@ -3824,7 +3837,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/sendRequest",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "5"
               },
               "edge": "mirror",
               "firefox": {
@@ -3846,7 +3859,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/setZoom",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "42"
               },
               "edge": "mirror",
               "firefox": {
@@ -3870,7 +3883,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/setZoomSettings",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "42"
               },
               "edge": "mirror",
               "firefox": {
@@ -3934,7 +3947,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/update",
             "support": {
               "chrome": {
-                "version_added": "18"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -3956,10 +3969,10 @@
           },
           "updateProperties_active_parameter": {
             "__compat": {
-              "description": "<code>updateProperties.active</code> parameter",
+              "description": "`updateProperties.active` parameter",
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "16"
                 },
                 "edge": {
                   "version_added": "14"
@@ -3982,7 +3995,7 @@
           },
           "updateProperties_autoDiscardable_parameter": {
             "__compat": {
-              "description": "<code>updateProperties.autoDiscardable</code> parameter",
+              "description": "`updateProperties.autoDiscardable` parameter",
               "support": {
                 "chrome": {
                   "version_added": "54"
@@ -4004,10 +4017,10 @@
           },
           "updateProperties_highlighted_parameter": {
             "__compat": {
-              "description": "<code>updateProperties.highlighted</code> parameter",
+              "description": "`updateProperties.highlighted` parameter",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "16"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -4028,7 +4041,7 @@
           },
           "updateProperties_loadReplace_parameter": {
             "__compat": {
-              "description": "<code>updateProperties.loadReplace</code> parameter",
+              "description": "`updateProperties.loadReplace` parameter",
               "support": {
                 "chrome": {
                   "version_added": false
@@ -4050,7 +4063,7 @@
           },
           "updateProperties_muted_parameter": {
             "__compat": {
-              "description": "<code>updateProperties.muted</code> parameter",
+              "description": "`updateProperties.muted` parameter",
               "support": {
                 "chrome": {
                   "version_added": "45"
@@ -4074,15 +4087,22 @@
           },
           "updateProperties_openerTabId_parameter": {
             "__compat": {
-              "description": "<code>updateProperties.openerTabId</code> parameter",
+              "description": "`updateProperties.openerTabId` parameter",
               "support": {
                 "chrome": {
                   "version_added": "18"
                 },
                 "edge": "mirror",
-                "firefox": {
-                  "version_added": "57"
-                },
+                "firefox": [
+                  {
+                    "version_added": "131",
+                    "notes": "Set to -1 to clear `openerTabId`."
+                  },
+                  {
+                    "version_added": "57",
+                    "version_removed": "131"
+                  }
+                ],
                 "firefox_android": {
                   "version_added": false
                 },
@@ -4098,10 +4118,10 @@
           },
           "updateProperties_pinned_parameter": {
             "__compat": {
-              "description": "<code>updateProperties.pinned</code> parameter",
+              "description": "`updateProperties.pinned` parameter",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "9"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -4123,10 +4143,10 @@
           },
           "updateProperties_selected_parameter": {
             "__compat": {
-              "description": "<code>updateProperties.selected</code> parameter",
+              "description": "`updateProperties.selected` parameter",
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "9"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -4145,10 +4165,10 @@
           },
           "updateProperties_url_parameter": {
             "__compat": {
-              "description": "<code>updateProperties.url</code> parameter",
+              "description": "`updateProperties.url` parameter",
               "support": {
                 "chrome": {
-                  "version_added": "≤61"
+                  "version_added": "9"
                 },
                 "edge": {
                   "version_added": "14"
diff --git a/webextensions/api/topSites.json b/webextensions/api/topSites.json
index 7591812bfde9e1..d4a6114f65e653 100644
--- a/webextensions/api/topSites.json
+++ b/webextensions/api/topSites.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/topSites",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "19"
             },
             "edge": "mirror",
             "firefox": {
@@ -28,7 +28,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/topSites/MostVisitedURL",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -73,12 +73,12 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/topSites/get",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "52",
-                "notes": "Since Firefox 78, a user may disable the browser's \"Top Sites\" feature by toggling the \"browser.newtabpage.activity-stream.feeds.system.topsites\" preference. In this case, <code>topSites.get()</code> will always return a list of the most-visited sites, regardless of the value of the <code>newtab</code> parameter."
+                "notes": "Since Firefox 78, a user may disable the browser's \"Top Sites\" feature by toggling the \"browser.newtabpage.activity-stream.feeds.system.topsites\" preference. In this case, `topSites.get()` will always return a list of the most-visited sites, regardless of the value of the `newtab` parameter."
               },
               "firefox_android": {
                 "version_added": "52",
diff --git a/webextensions/api/webNavigation.json b/webextensions/api/webNavigation.json
index 0e74b1289186d5..dc0f70c1e3a590 100644
--- a/webextensions/api/webNavigation.json
+++ b/webextensions/api/webNavigation.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "16"
             },
             "edge": "mirror",
             "firefox": {
@@ -29,7 +29,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/TransitionQualifier",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "44"
               },
               "edge": "mirror",
               "firefox": {
@@ -48,7 +48,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -69,7 +69,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/TransitionType",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "44"
               },
               "edge": "mirror",
               "firefox": {
@@ -87,7 +87,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -106,7 +106,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -126,7 +126,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -145,7 +145,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -164,7 +164,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -183,7 +183,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -202,7 +202,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -222,7 +222,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -241,7 +241,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -260,7 +260,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -279,7 +279,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤70"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -300,16 +300,16 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/getAllFrames",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "47",
-                "notes": "The returned objects do not include the <code>errorOccurred</code> property. See <a href='https://bugzil.la/1248418'>bug 1248418</a>."
+                "notes": "The returned objects do not include the `errorOccurred` property. See [bug 1248418](https://bugzil.la/1248418)."
               },
               "firefox_android": {
                 "version_added": "48",
-                "notes": "The returned objects do not include the <code>errorOccurred</code> property. See <a href='https://bugzil.la/1248418'>bug 1248418</a>."
+                "notes": "The returned objects do not include the `errorOccurred` property. See [bug 1248418](https://bugzil.la/1248418)."
               },
               "opera": "mirror",
               "safari": {
@@ -326,7 +326,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/getFrame",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "16"
               },
               "edge": "mirror",
               "firefox": {
@@ -350,7 +350,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onBeforeNavigate",
             "support": {
               "chrome": {
-                "version_added": "≤58",
+                "version_added": "16",
                 "notes": "If the filter parameter is empty, all URLs are matched."
               },
               "edge": "mirror",
@@ -385,7 +385,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onCommitted",
             "support": {
               "chrome": {
-                "version_added": "≤58",
+                "version_added": "16",
                 "notes": "If the filter parameter is empty, all URLs are matched."
               },
               "edge": "mirror",
@@ -418,7 +418,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "16"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -437,7 +437,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "16"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -458,7 +458,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onCompleted",
             "support": {
               "chrome": {
-                "version_added": "≤58",
+                "version_added": "16",
                 "notes": "If the filter parameter is empty, all URLs are matched."
               },
               "edge": "mirror",
@@ -493,7 +493,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onCreatedNavigationTarget",
             "support": {
               "chrome": {
-                "version_added": "≤58",
+                "version_added": "16",
                 "notes": "If a blocked popup is unblocked by the user, the event is still not sent."
               },
               "edge": "mirror",
@@ -523,7 +523,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -563,7 +563,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onDOMContentLoaded",
             "support": {
               "chrome": {
-                "version_added": "≤58",
+                "version_added": "16",
                 "notes": "If the filter parameter is empty, all URLs are matched."
               },
               "edge": "mirror",
@@ -598,7 +598,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onErrorOccurred",
             "support": {
               "chrome": {
-                "version_added": "≤58",
+                "version_added": "16",
                 "notes": "If the filter parameter is empty, all URLs are matched."
               },
               "edge": "mirror",
@@ -631,7 +631,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "16"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -654,7 +654,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onHistoryStateUpdated",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -674,7 +674,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -693,7 +693,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "22"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -714,7 +714,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onReferenceFragmentUpdated",
             "support": {
               "chrome": {
-                "version_added": "≤58",
+                "version_added": "16",
                 "notes": "If the filter parameter is empty, all URLs are matched."
               },
               "edge": "mirror",
@@ -743,7 +743,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "16"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -762,7 +762,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "16"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -783,7 +783,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onTabReplaced",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/api/webRequest.json b/webextensions/api/webRequest.json
index 77de2dcf479369..3f3601be98e0c7 100644
--- a/webextensions/api/webRequest.json
+++ b/webextensions/api/webRequest.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webRequest",
           "support": {
             "chrome": {
-              "version_added": "≤44"
+              "version_added": "17"
             },
             "edge": {
               "version_added": "14"
@@ -29,7 +29,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/BlockingResponse",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "17"
               },
               "edge": {
                 "version_added": "14"
@@ -74,7 +74,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/628819"
+                "impl_url": "https://crbug.com/41264310"
               },
               "edge": {
                 "version_added": false
@@ -98,7 +98,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/HttpHeaders",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "17"
               },
               "edge": {
                 "version_added": "14"
@@ -124,7 +124,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/MAX_HANDLER_BEHAVIOR_CHANGED_CALLS_PER_10_MINUTES",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "23"
               },
               "edge": {
                 "version_added": "14"
@@ -148,23 +148,23 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/RequestFilter",
             "support": {
               "chrome": {
-                "version_added": "≤58",
-                "notes": "If a filter contains unrecognized values in its <code>types</code> property, <code>addListener()</code> throws an exception."
+                "version_added": "17",
+                "notes": "If a filter contains unrecognized values in its `types` property, `addListener()` throws an exception."
               },
               "edge": {
                 "version_added": "14",
-                "notes": "If a filter contains unrecognized values in its <code>types</code> property, <code>addListener()</code> throws an exception."
+                "notes": "If a filter contains unrecognized values in its `types` property, `addListener()` throws an exception."
               },
               "firefox": {
                 "version_added": "45",
                 "notes": [
-                  "From Firefox 78 onwards, if a filter contains unrecognized values in its <code>types</code> property, then these values are ignored and <code>addListener()</code> proceeds.",
-                  "Before Firefox 78, if a filter contains unrecognized values in its <code>types</code> property, <code>addListener()</code> throws an exception."
+                  "From Firefox 78 onwards, if a filter contains unrecognized values in its `types` property, then these values are ignored and `addListener()` proceeds.",
+                  "Before Firefox 78, if a filter contains unrecognized values in its `types` property, `addListener()` throws an exception."
                 ]
               },
               "firefox_android": {
                 "version_added": "48",
-                "notes": "If a filter contains unrecognized values in its <code>types</code> property, <code>addListener()</code> throws an exception."
+                "notes": "If a filter contains unrecognized values in its `types` property, `addListener()` throws an exception."
               },
               "opera": "mirror",
               "safari": {
@@ -179,7 +179,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤58"
+                  "version_added": "17"
                 },
                 "edge": {
                   "version_added": "14"
@@ -470,7 +470,7 @@
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "55",
-                  "notes": "Requests have been reported as <code>object_subrequest</code> before, but the type was missing in the <code>ResourceType</code> object before Firefox 55."
+                  "notes": "Requests have been reported as `object_subrequest` before, but the type was missing in the `ResourceType` object before Firefox 55."
                 },
                 "firefox_android": "mirror",
                 "opera": "mirror",
@@ -507,7 +507,7 @@
               "support": {
                 "chrome": {
                   "version_added": "49",
-                  "notes": "Requests sent by <code>navigator.sendBeacon()</code>, and CSP reports in Chrome 49-57 (Opera 36-44), are also labeled as <code>ping</code>."
+                  "notes": "Requests sent by `navigator.sendBeacon()`, and CSP reports in Chrome 49-57 (Opera 36-44), are also labeled as `ping`."
                 },
                 "edge": {
                   "version_added": "79"
@@ -520,7 +520,7 @@
                 },
                 "opera": {
                   "version_added": "36",
-                  "notes": "Requests sent by <code>navigator.sendBeacon()</code>, and CSP reports in Chrome 49-57 (Opera 36-44), are also labeled as <code>ping</code>."
+                  "notes": "Requests sent by `navigator.sendBeacon()`, and CSP reports in Chrome 49-57 (Opera 36-44), are also labeled as `ping`."
                 },
                 "safari": {
                   "version_added": false
@@ -1388,7 +1388,7 @@
             "support": {
               "chrome": {
                 "version_added": false,
-                "impl_url": "https://crbug.com/628819"
+                "impl_url": "https://crbug.com/41264310"
               },
               "edge": {
                 "version_added": false
@@ -1476,7 +1476,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>extraInfoSpec</code> options are not supported."
+                "notes": "`extraInfoSpec` options are not supported."
               },
               "safari_ios": {
                 "version_added": false
@@ -1516,7 +1516,7 @@
                   },
                   "firefox": {
                     "version_added": "54",
-                    "notes": "Before version 57, when authenticating to a proxy server, the <code>challenger.host</code> property contains the hostname for the requested URL rather than the hostname for the proxy."
+                    "notes": "Before version 57, when authenticating to a proxy server, the `challenger.host` property contains the hostname for the requested URL rather than the hostname for the proxy."
                   },
                   "firefox_android": "mirror",
                   "opera": "mirror",
@@ -1979,7 +1979,8 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": "74"
+                    "version_added": "74",
+                    "notes": "Classification flags <code>emailtracking</code> and <code>emailtracking_content</code> added in Firefox 104."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -2013,7 +2014,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>extraInfoSpec</code> options are not supported."
+                "notes": "`extraInfoSpec` options are not supported."
               },
               "safari_ios": {
                 "version_added": false
@@ -2499,7 +2500,8 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": "74"
+                    "version_added": "74",
+                    "notes": "Classification flags <code>emailtracking</code> and <code>emailtracking_content</code> added in Firefox 104."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -2537,7 +2539,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>extraInfoSpec</code> options are not supported."
+                "notes": "`extraInfoSpec` options are not supported."
               },
               "safari_ios": {
                 "version_added": false
@@ -2913,7 +2915,8 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": "74"
+                    "version_added": "74",
+                    "notes": "Classification flags <code>emailtracking</code> and <code>emailtracking_content</code> added in Firefox 104."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -2951,7 +2954,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>extraInfoSpec</code> options are not supported."
+                "notes": "`extraInfoSpec` options are not supported."
               },
               "safari_ios": {
                 "version_added": false
@@ -3007,7 +3010,7 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": true
+                    "version_added": "58"
                   },
                   "firefox_android": "mirror",
                   "opera": "mirror",
@@ -3329,7 +3332,8 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": "74"
+                    "version_added": "74",
+                    "notes": "Classification flags <code>emailtracking</code> and <code>emailtracking_content</code> added in Firefox 104."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -3363,7 +3367,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>extraInfoSpec</code> options are not supported."
+                "notes": "`extraInfoSpec` options are not supported."
               },
               "safari_ios": {
                 "version_added": false
@@ -3824,7 +3828,8 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": "74"
+                    "version_added": "74",
+                    "notes": "Classification flags <code>emailtracking</code> and <code>emailtracking_content</code> added in Firefox 104."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -3858,7 +3863,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>extraInfoSpec</code> options are not supported."
+                "notes": "`extraInfoSpec` options are not supported."
               },
               "safari_ios": {
                 "version_added": false
@@ -4269,7 +4274,8 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": "74"
+                    "version_added": "74",
+                    "notes": "Classification flags <code>emailtracking</code> and <code>emailtracking_content</code> added in Firefox 104."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -4313,7 +4319,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>extraInfoSpec</code> options are not supported."
+                "notes": "`extraInfoSpec` options are not supported."
               },
               "safari_ios": {
                 "version_added": false
@@ -4787,7 +4793,8 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": "74"
+                    "version_added": "74",
+                    "notes": "Classification flags <code>emailtracking</code> and <code>emailtracking_content</code> added in Firefox 104."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -4821,7 +4828,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>extraInfoSpec</code> options are not supported."
+                "notes": "`extraInfoSpec` options are not supported."
               },
               "safari_ios": {
                 "version_added": false
@@ -5278,7 +5285,8 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": "74"
+                    "version_added": "74",
+                    "notes": "Classification flags <code>emailtracking</code> and <code>emailtracking_content</code> added in Firefox 104."
                   },
                   "firefox_android": {
                     "version_added": false
@@ -5312,7 +5320,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>extraInfoSpec</code> options are not supported."
+                "notes": "`extraInfoSpec` options are not supported."
               },
               "safari_ios": {
                 "version_added": false
@@ -5673,7 +5681,8 @@
                   },
                   "edge": "mirror",
                   "firefox": {
-                    "version_added": "74"
+                    "version_added": "74",
+                    "notes": "Classification flags <code>emailtracking</code> and <code>emailtracking_content</code> added in Firefox 104."
                   },
                   "firefox_android": {
                     "version_added": false
diff --git a/webextensions/api/windows.json b/webextensions/api/windows.json
index 6241191110b783..cbead19c6d274a 100644
--- a/webextensions/api/windows.json
+++ b/webextensions/api/windows.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows",
           "support": {
             "chrome": {
-              "version_added": "≤18"
+              "version_added": "4"
             },
             "edge": {
               "version_added": "14"
@@ -31,12 +31,12 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/CreateType",
             "support": {
               "chrome": {
-                "version_added": "≤58",
-                "notes": "<code>detached_panel</code> is not supported."
+                "version_added": "44",
+                "notes": "`detached_panel` is not supported."
               },
               "edge": {
                 "version_added": "14",
-                "notes": "<code>panel</code> and <code>detached_panel</code> are not supported."
+                "notes": "`panel` and `detached_panel` are not supported."
               },
               "firefox": {
                 "version_added": "45"
@@ -47,11 +47,11 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "<code>panel</code> and <code>detached_panel</code> are not supported."
+                "notes": "`panel` and `detached_panel` are not supported."
               },
               "safari_ios": {
                 "version_added": "15",
-                "notes": "<code>panel</code> and <code>detached_panel</code> are not supported."
+                "notes": "`panel` and `detached_panel` are not supported."
               }
             }
           }
@@ -61,7 +61,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/Window",
             "support": {
               "chrome": {
-                "version_added": "≤19"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -97,11 +97,11 @@
                 "opera": "mirror",
                 "safari": {
                   "version_added": "14",
-                  "notes": "Always returns <code>false</code>."
+                  "notes": "Always returns `false`."
                 },
                 "safari_ios": {
                   "version_added": "15",
-                  "notes": "Always returns <code>false</code>."
+                  "notes": "Always returns `false`."
                 }
               }
             }
@@ -110,7 +110,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
@@ -135,7 +135,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
@@ -160,7 +160,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
@@ -185,7 +185,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "5"
                 },
                 "edge": {
                   "alternative_name": "inPrivate",
@@ -211,7 +211,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
@@ -255,7 +255,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "17"
                 },
                 "edge": {
                   "version_added": "14"
@@ -280,7 +280,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
@@ -326,7 +326,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
@@ -351,7 +351,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "5"
                 },
                 "edge": {
                   "version_added": "14"
@@ -376,7 +376,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
@@ -429,7 +429,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/WINDOW_ID_NONE",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "6"
               },
               "edge": {
                 "version_added": "14"
@@ -455,7 +455,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/WindowState",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "44"
               },
               "edge": {
                 "version_added": "14"
@@ -479,7 +479,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -498,7 +498,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -521,7 +521,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -544,7 +544,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -569,7 +569,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/WindowType",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "44"
               },
               "edge": {
                 "version_added": "14"
@@ -593,7 +593,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -614,7 +614,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "46"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -635,7 +635,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "44"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -658,8 +658,8 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/create",
             "support": {
               "chrome": {
-                "version_added": "≤44",
-                "notes": "<code>top</code>, <code>bottom</code>, <code>left</code>, <code>right</code> bounds must be at least 50% within visible screen space if specified, otherwise an error is thrown."
+                "version_added": "4",
+                "notes": "`top`, `bottom`, `left`, `right` bounds must be at least 50% within visible screen space if specified, otherwise an error is thrown."
               },
               "edge": {
                 "version_added": "14"
@@ -667,9 +667,10 @@
               "firefox": {
                 "version_added": "45",
                 "notes": [
-                  "'url' and 'tabId options can't both be set together.",
-                  "The returned 'Window' object contains the 'tabs' property only from version 52 onwards.",
-                  "From Firefox 86, the <code>focused: false</code> option is ignored."
+                  "`url` and `tabId` options can't be set together.",
+                  "The returned `Window` object contains the `tabs` property only from version 52 onwards.",
+                  "In Firefox 85 and earlier, `focused: false` is unsupported and throws an error. From Firefox 86, `focused: false` is ignored.",
+                  "From Firefox 109, `top` and `left` are used to determine window placement; previously, they were ignored."
                 ]
               },
               "firefox_android": {
@@ -731,7 +732,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "12"
                   },
                   "edge": {
                     "version_added": "14"
@@ -754,7 +755,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤60"
+                    "version_added": "4"
                   },
                   "edge": {
                     "version_added": "14"
@@ -779,7 +780,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "5"
                   },
                   "edge": {
                     "version_added": "14"
@@ -804,7 +805,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "4"
                   },
                   "edge": {
                     "version_added": "14"
@@ -854,7 +855,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "10"
                   },
                   "edge": "mirror",
                   "firefox": {
@@ -896,7 +897,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤60"
+                    "version_added": "4"
                   },
                   "edge": {
                     "version_added": "14"
@@ -921,7 +922,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤60"
+                    "version_added": "5"
                   },
                   "edge": {
                     "version_added": "14"
@@ -946,7 +947,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤61"
+                    "version_added": "4"
                   },
                   "edge": {
                     "version_added": "14"
@@ -972,7 +973,7 @@
               "__compat": {
                 "support": {
                   "chrome": {
-                    "version_added": "≤60"
+                    "version_added": "4"
                   },
                   "edge": {
                     "version_added": "14"
@@ -1000,7 +1001,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/get",
             "support": {
               "chrome": {
-                "version_added": "≤18"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -1074,7 +1075,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/getAll",
             "support": {
               "chrome": {
-                "version_added": "≤46"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -1098,7 +1099,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "4"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1148,7 +1149,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/getCurrent",
             "support": {
               "chrome": {
-                "version_added": "≤18"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -1222,7 +1223,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/getLastFocused",
             "support": {
               "chrome": {
-                "version_added": "≤18"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -1318,7 +1319,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/onCreated",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -1345,7 +1346,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/onFocusChanged",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -1372,7 +1373,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/onRemoved",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": "mirror",
               "firefox": {
@@ -1396,7 +1397,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/remove",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": "mirror",
               "firefox": {
@@ -1420,7 +1421,7 @@
             "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/windows/update",
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "4"
               },
               "edge": {
                 "version_added": "14"
@@ -1444,7 +1445,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "18"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1465,7 +1466,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
@@ -1490,7 +1491,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
@@ -1515,7 +1516,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "4"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1538,7 +1539,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "17"
                 },
                 "edge": {
                   "version_added": "14"
@@ -1584,7 +1585,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤59"
+                  "version_added": "4"
                 },
                 "edge": "mirror",
                 "firefox": {
@@ -1607,7 +1608,7 @@
             "__compat": {
               "support": {
                 "chrome": {
-                  "version_added": "≤60"
+                  "version_added": "4"
                 },
                 "edge": {
                   "version_added": "14"
diff --git a/webextensions/manifest/action.json b/webextensions/manifest/action.json
index 06796dc98b5821..f09212205bc3f7 100644
--- a/webextensions/manifest/action.json
+++ b/webextensions/manifest/action.json
@@ -33,7 +33,7 @@
               "firefox": {
                 "version_added": "109",
                 "version_removed": "118",
-                "notes": "See <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/user_interface/Browser_styles'>Browser styles</a> for more details."
+                "notes": "See [Browser styles](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/user_interface/Browser_styles) for more details."
               },
               "firefox_android": {
                 "version_added": false
@@ -150,7 +150,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "88"
+                "version_added": false
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/manifest/background.json b/webextensions/manifest/background.json
index 07abf82c4f5880..3114adff16616f 100644
--- a/webextensions/manifest/background.json
+++ b/webextensions/manifest/background.json
@@ -70,7 +70,7 @@
                   "Available for use in Manifest V2 only.",
                   "From Firefox 106, persistent and non-persistent pages are supported for Manifest V2.",
                   "To Firefox 105, only persistent pages are supported.",
-                  "Before version 66, Firefox would log a warning even if the value was set to <code>true</code>."
+                  "Before version 66, Firefox would log a warning even if the value was set to `true`."
                 ]
               },
               "firefox_android": "mirror",
@@ -90,12 +90,12 @@
                 {
                   "version_added": "15.4",
                   "partial_implementation": true,
-                  "notes": "Only non-persistent pages are supported. Requires <code>persistent: false</code> or <code>service_worker</code>."
+                  "notes": "Only non-persistent pages are supported. Requires `persistent: false` or `service_worker`."
                 },
                 {
                   "version_added": "15",
                   "partial_implementation": true,
-                  "notes": "Only non-persistent pages are supported. Requires <code>persistent: false</code>."
+                  "notes": "Only non-persistent pages are supported. Requires `persistent: false`."
                 }
               ]
             }
@@ -124,7 +124,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true,
+                "version_added": "≤72",
                 "notes": "Available for use in Manifest V2 only."
               },
               "edge": {
@@ -172,7 +172,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "92"
               },
               "edge": "mirror",
               "firefox": {
diff --git a/webextensions/manifest/browser_specific_settings.json b/webextensions/manifest/browser_specific_settings.json
index b042862bdc2f7d..141a4df9aa5c99 100644
--- a/webextensions/manifest/browser_specific_settings.json
+++ b/webextensions/manifest/browser_specific_settings.json
@@ -35,7 +35,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "42",
-                "notes": "Supports <code>id</code>, <code>strict_min_version</code>, <code>strict_max_version</code>, and <code>update_url</code>update_url."
+                "notes": "Supports `id`, `strict_min_version`, `strict_max_version`, and `update_url`update_url."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -58,7 +58,7 @@
               },
               "firefox_android": {
                 "version_added": "113",
-                "notes": "Supports <code>strict_min_version</code> and <code>strict_max_version</code>."
+                "notes": "Supports `strict_min_version` and `strict_max_version`."
               },
               "opera": "mirror",
               "safari": {
@@ -82,11 +82,11 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "Supports <code>strict_min_version</code> and <code>strict_max_version</code>."
+                "notes": "Supports `strict_min_version` and `strict_max_version`."
               },
               "safari_ios": {
                 "version_added": "15",
-                "notes": "Supports <code>strict_min_version</code> and <code>strict_max_version</code>."
+                "notes": "Supports `strict_min_version` and `strict_max_version`."
               }
             }
           }
diff --git a/webextensions/manifest/chrome_settings_overrides.json b/webextensions/manifest/chrome_settings_overrides.json
index 4a6b01e560bcdc..7c0531c0b5c155 100644
--- a/webextensions/manifest/chrome_settings_overrides.json
+++ b/webextensions/manifest/chrome_settings_overrides.json
@@ -334,6 +334,27 @@
               }
             }
           },
+          "search_url_get_params": {
+            "__compat": {
+              "support": {
+                "chrome": {
+                  "version_added": false
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "68"
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
           "search_url_post_params": {
             "__compat": {
               "support": {
@@ -380,6 +401,27 @@
               }
             }
           },
+          "suggest_url_get_params": {
+            "__compat": {
+              "support": {
+                "chrome": {
+                  "version_added": false
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "68"
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
           "suggest_url_post_params": {
             "__compat": {
               "support": {
diff --git a/webextensions/manifest/chrome_url_overrides.json b/webextensions/manifest/chrome_url_overrides.json
index ef76f41e03e17a..c6dbcbcfabb04c 100644
--- a/webextensions/manifest/chrome_url_overrides.json
+++ b/webextensions/manifest/chrome_url_overrides.json
@@ -95,11 +95,11 @@
               },
               "safari": {
                 "version_added": "14.1",
-                "notes": "An extension can define a custom new tab or window page, but it does not take effect until the user chooses the extension to override the page in Safari's <em>General</em> settings."
+                "notes": "An extension can define a custom new tab or window page, but it does not take effect until the user chooses the extension to override the page in Safari's _General_ settings."
               },
               "safari_ios": {
                 "version_added": "15",
-                "notes": "An extension can define a custom new tab or window page, but it does not take effect until the user chooses the extension to override the page in Safari's <em>Extensions</em> settings."
+                "notes": "An extension can define a custom new tab or window page, but it does not take effect until the user chooses the extension to override the page in Safari's _Extensions_ settings."
               }
             }
           }
diff --git a/webextensions/manifest/commands.json b/webextensions/manifest/commands.json
index 9d109ed4d60167..7613753300a918 100644
--- a/webextensions/manifest/commands.json
+++ b/webextensions/manifest/commands.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/commands",
           "support": {
             "chrome": {
-              "version_added": "≤54"
+              "version_added": "25"
             },
             "edge": "mirror",
             "firefox": {
@@ -59,8 +59,8 @@
               "firefox": {
                 "version_added": "57",
                 "notes": [
-                  "macOS support requires the <code>global</code> command feature which isn't supported yet. See <a href='https://bugzil.la/1251795#c11'>Bug 1251795</a>.",
-                  "Can only register one Media* command at a time. See <a href='https://bugzil.la/1251795#c13'>Bug 1251795</a>."
+                  "macOS support requires the `global` command feature which isn't supported yet. See [Bug 1251795](https://bugzil.la/1251795#c11).",
+                  "Can only register one Media* command at a time. See [Bug 1251795](https://bugzil.la/1251795#c13)."
                 ]
               },
               "firefox_android": {
@@ -84,8 +84,8 @@
               "firefox": {
                 "version_added": "57",
                 "notes": [
-                  "macOS support requires the <code>global</code> command feature which isn't supported yet. See <a href='https://bugzil.la/1251795#c11'>Bug 1251795</a>.",
-                  "Can only register one Media* command at a time. See <a href='https://bugzil.la/1251795#c13'>Bug 1251795</a>."
+                  "macOS support requires the `global` command feature which isn't supported yet. See [Bug 1251795](https://bugzil.la/1251795#c11).",
+                  "Can only register one Media* command at a time. See [Bug 1251795](https://bugzil.la/1251795#c13)."
                 ]
               },
               "firefox_android": {
@@ -109,8 +109,8 @@
               "firefox": {
                 "version_added": "57",
                 "notes": [
-                  "macOS support requires the <code>global</code> command feature which isn't supported yet. See <a href='https://bugzil.la/1251795#c11'>Bug 1251795</a>.",
-                  "Can only register one Media* command at a time. See <a href='https://bugzil.la/1251795#c13'>Bug 1251795</a>."
+                  "macOS support requires the `global` command feature which isn't supported yet. See [Bug 1251795](https://bugzil.la/1251795#c11).",
+                  "Can only register one Media* command at a time. See [Bug 1251795](https://bugzil.la/1251795#c13)."
                 ]
               },
               "firefox_android": {
@@ -134,8 +134,8 @@
               "firefox": {
                 "version_added": "57",
                 "notes": [
-                  "macOS support requires the <code>global</code> command feature which isn't supported yet. See <a href='https://bugzil.la/1251795#c11'>Bug 1251795</a>.",
-                  "Can only register one Media* command at a time. See <a href='https://bugzil.la/1251795#c13'>Bug 1251795</a>."
+                  "macOS support requires the `global` command feature which isn't supported yet. See [Bug 1251795](https://bugzil.la/1251795#c11).",
+                  "Can only register one Media* command at a time. See [Bug 1251795](https://bugzil.la/1251795#c13)."
                 ]
               },
               "firefox_android": {
@@ -201,7 +201,7 @@
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": true,
+                "version_added": "91",
                 "notes": "Available for use in Manifest V3 or later."
               },
               "firefox_android": {
@@ -220,7 +220,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true,
+                "version_added": "25",
                 "notes": "Available for use in Manifest V2 only."
               },
               "edge": "mirror",
@@ -247,7 +247,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true,
+                "version_added": "25",
                 "notes": "Available for use in Manifest V2 only."
               },
               "edge": "mirror",
diff --git a/webextensions/manifest/content_scripts.json b/webextensions/manifest/content_scripts.json
index 7df249c272ddcc..fc91221c831585 100644
--- a/webextensions/manifest/content_scripts.json
+++ b/webextensions/manifest/content_scripts.json
@@ -31,7 +31,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -54,7 +54,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -96,7 +96,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -118,7 +118,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -141,7 +141,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -163,7 +163,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -229,7 +229,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -252,7 +252,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -264,11 +264,11 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "Content scripts are not applied to tabs until the user grants permission via the extension's access popover in the toolbar. Additional loads after permission is granted will respect <code>run_at</code>."
+                "notes": "Content scripts are not applied to tabs until the user grants permission via the extension's access popover in the toolbar. Additional loads after permission is granted will respect `run_at`."
               },
               "safari_ios": {
                 "version_added": "15",
-                "notes": "Content scripts are not applied to tabs until the user grants permission via the extension's access alert. Additional loads after permission is granted will respect <code>run_at</code>."
+                "notes": "Content scripts are not applied to tabs until the user grants permission via the extension's access alert. Additional loads after permission is granted will respect `run_at`."
               }
             }
           }
diff --git a/webextensions/manifest/content_security_policy.json b/webextensions/manifest/content_security_policy.json
index e3dd5ed85e57af..f001826d33aa7c 100644
--- a/webextensions/manifest/content_security_policy.json
+++ b/webextensions/manifest/content_security_policy.json
@@ -7,25 +7,25 @@
           "support": {
             "chrome": {
               "version_added": "≤58",
-              "notes": "Until Chrome 110, the <code>object-src</code> directive was required with a secure source. From Chrome 111, the <code>object-src</code> directive is optional."
+              "notes": "Until Chrome 110, the `object-src` directive was required with a secure source. From Chrome 111, the `object-src` directive is optional."
             },
             "edge": "mirror",
             "firefox": {
               "version_added": "48",
               "notes": [
-                "Firefox does not support 'http://127.0.0.1' or 'http://localhost' as script sources: they must be served over HTTPS.",
-                "Until Firefox 105, the <code>object-src</code> directive was required with a secure source. From Firefox 106, the <code>object-src</code> directive is optional."
+                "Firefox does not support `http://127.0.0.1'` or `http://localhost` as script sources; they must be served over HTTPS.",
+                "Until Firefox 105, the `object-src` directive was required with a secure source. From Firefox 106, the `object-src` directive is optional."
               ]
             },
             "firefox_android": "mirror",
             "opera": "mirror",
             "safari": {
               "version_added": "14",
-              "notes": "There is no requirement to include the <code>object-src</code> directive."
+              "notes": "There is no requirement to include the `object-src` directive."
             },
             "safari_ios": {
               "version_added": "15",
-              "notes": "There is no requirement to include the <code>object-src</code> directive."
+              "notes": "There is no requirement to include the `object-src` directive."
             }
           }
         },
@@ -37,13 +37,13 @@
                 "version_added": "88",
                 "notes": [
                   "Available for use in Manifest V3 or later.",
-                  "Until Chrome 110, the <code>object-src</code> directive was required with a secure source. From Chrome 111, the <code>object-src</code> directive is optional."
+                  "Until Chrome 110, the `object-src` directive was required with a secure source. From Chrome 111, the `object-src` directive is optional."
                 ]
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "72",
-                "notes": "Until Firefox 105, the <code>object-src</code> directive was required with a secure source. From Firefox 106, the <code>object-src</code> directive is optional."
+                "notes": "Until Firefox 105, the `object-src` directive was required with a secure source. From Firefox 106, the `object-src` directive is optional."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -51,7 +51,7 @@
                 "version_added": "15.4",
                 "notes": [
                   "Available for use in Manifest V3 or later.",
-                  "There is no requirement to include the <code>object-src</code> directive."
+                  "There is no requirement to include the `object-src` directive."
                 ]
               },
               "safari_ios": "mirror"
diff --git a/webextensions/manifest/developer.json b/webextensions/manifest/developer.json
index 0b0fd68f6502af..5c2da35b003841 100644
--- a/webextensions/manifest/developer.json
+++ b/webextensions/manifest/developer.json
@@ -14,7 +14,7 @@
             },
             "firefox_android": "mirror",
             "opera": {
-              "version_added": true
+              "version_added": "≤45"
             },
             "safari": {
               "version_added": false
diff --git a/webextensions/manifest/dictionaries.json b/webextensions/manifest/dictionaries.json
index 4785bb44995b76..8f325702c456c7 100644
--- a/webextensions/manifest/dictionaries.json
+++ b/webextensions/manifest/dictionaries.json
@@ -10,7 +10,7 @@
             },
             "edge": "mirror",
             "firefox": {
-              "version_added": true
+              "version_added": "61"
             },
             "firefox_android": "mirror",
             "opera": "mirror",
diff --git a/webextensions/manifest/externally_connectable.json b/webextensions/manifest/externally_connectable.json
index 820f29f3ef3bf5..f04c913d3071b2 100644
--- a/webextensions/manifest/externally_connectable.json
+++ b/webextensions/manifest/externally_connectable.json
@@ -6,11 +6,9 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/externally_connectable",
           "support": {
             "chrome": {
-              "version_added": true
-            },
-            "edge": {
-              "version_added": "79"
+              "version_added": "≤67"
             },
+            "edge": "mirror",
             "firefox": {
               "version_added": false,
               "impl_url": "https://bugzil.la/1319168"
@@ -23,7 +21,7 @@
               "version_added": "15.4",
               "impl_url": "https://webkit.org/b/269299",
               "partial_implementation": true,
-              "notes": "Safari only supports the <code>matches</code> property."
+              "notes": "Safari only supports the `matches` property."
             },
             "safari_ios": "mirror"
           }
diff --git a/webextensions/manifest/incognito.json b/webextensions/manifest/incognito.json
index 7f600f75879934..941d5e1d47e0aa 100644
--- a/webextensions/manifest/incognito.json
+++ b/webextensions/manifest/incognito.json
@@ -47,7 +47,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "≤18"
diff --git a/webextensions/manifest/manifest_version.json b/webextensions/manifest/manifest_version.json
index 1dcfb5281f01d6..b0e7b3e9052491 100644
--- a/webextensions/manifest/manifest_version.json
+++ b/webextensions/manifest/manifest_version.json
@@ -29,7 +29,7 @@
             "description": "Version 2",
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤21"
               },
               "edge": {
                 "version_added": "14"
diff --git a/webextensions/manifest/offline_enabled.json b/webextensions/manifest/offline_enabled.json
index 359d36dd0d7a0c..70eaa83888d1c4 100644
--- a/webextensions/manifest/offline_enabled.json
+++ b/webextensions/manifest/offline_enabled.json
@@ -6,11 +6,9 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/offline_enabled",
           "support": {
             "chrome": {
-              "version_added": true
-            },
-            "edge": {
-              "version_added": "79"
+              "version_added": "≤72"
             },
+            "edge": "mirror",
             "firefox": {
               "version_added": false
             },
diff --git a/webextensions/manifest/omnibox.json b/webextensions/manifest/omnibox.json
index 84cff82b32183d..a3447f4edbecb1 100644
--- a/webextensions/manifest/omnibox.json
+++ b/webextensions/manifest/omnibox.json
@@ -26,11 +26,9 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
-              },
-              "edge": {
-                "version_added": "79"
+                "version_added": "≤72"
               },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "52"
               },
diff --git a/webextensions/manifest/optional_permissions.json b/webextensions/manifest/optional_permissions.json
index 92c06e36f2ae7f..f675f61ee70eca 100644
--- a/webextensions/manifest/optional_permissions.json
+++ b/webextensions/manifest/optional_permissions.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/optional_permissions",
           "support": {
             "chrome": {
-              "version_added": "≤58"
+              "version_added": "18"
             },
             "edge": "mirror",
             "firefox": {
@@ -26,7 +26,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "26"
               },
               "edge": "mirror",
               "firefox": {
@@ -47,7 +47,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "22"
               },
               "edge": "mirror",
               "firefox": {
@@ -66,7 +66,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -85,7 +85,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -125,7 +125,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -146,7 +146,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -165,7 +165,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -186,7 +186,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -205,18 +205,18 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
                 "version_added": "55",
-                "notes": "Available as an alias to the <code>menus</code> permission."
+                "notes": "Available as an alias to the `menus` permission."
               },
               "firefox_android": "mirror",
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "Available as an alias to the <code>menus</code> permission."
+                "notes": "Available as an alias to the `menus` permission."
               },
               "safari_ios": {
                 "version_added": false
@@ -228,7 +228,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -329,7 +329,7 @@
             "support": {
               "chrome": {
                 "version_added": "preview",
-                "notes": "The <code>dns</code> API is only available in Chrome Dev."
+                "notes": "The `dns` API is only available in Chrome Dev."
               },
               "edge": "mirror",
               "firefox": {
@@ -348,7 +348,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "31"
               },
               "edge": "mirror",
               "firefox": {
@@ -365,10 +365,10 @@
         },
         "downloads_open": {
           "__compat": {
-            "description": "<code>downloads.open</code>",
+            "description": "`downloads.open`",
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "31"
               },
               "edge": "mirror",
               "firefox": {
@@ -427,7 +427,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -448,7 +448,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "29"
               },
               "edge": "mirror",
               "firefox": {
@@ -467,7 +467,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -486,7 +486,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -532,7 +532,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "29"
               },
               "edge": "mirror",
               "firefox": {
@@ -555,7 +555,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -574,7 +574,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -614,11 +614,9 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
-              },
-              "edge": {
-                "version_added": "79"
+                "version_added": "19"
               },
+              "edge": "mirror",
               "firefox": {
                 "version_added": "75"
               },
@@ -680,11 +678,11 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "87"
               },
               "edge": "mirror",
               "firefox": {
-                "version_added": true
+                "version_added": "63"
               },
               "firefox_android": "mirror",
               "opera": "mirror",
@@ -699,7 +697,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "37"
               },
               "edge": "mirror",
               "firefox": {
@@ -720,7 +718,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -762,7 +760,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -783,7 +781,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "19"
               },
               "edge": "mirror",
               "firefox": {
@@ -802,7 +800,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -837,7 +835,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -858,7 +856,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -879,7 +877,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤58"
+                "version_added": "18"
               },
               "edge": "mirror",
               "firefox": {
@@ -915,7 +913,7 @@
         },
         "webRequestFilterResponse_serviceWorkerScript": {
           "__compat": {
-            "description": "<code>webRequestFilterResponse.serviceWorkerScript</code>",
+            "description": "`webRequestFilterResponse.serviceWorkerScript`",
             "support": {
               "chrome": {
                 "version_added": false
diff --git a/webextensions/manifest/options_page.json b/webextensions/manifest/options_page.json
index 2217b54d27f794..7388681c00c2cf 100644
--- a/webextensions/manifest/options_page.json
+++ b/webextensions/manifest/options_page.json
@@ -6,7 +6,7 @@
           "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/options_page",
           "support": {
             "chrome": {
-              "version_added": true
+              "version_added": "≤65"
             },
             "edge": {
               "version_added": "14"
diff --git a/webextensions/manifest/options_ui.json b/webextensions/manifest/options_ui.json
index 350787c590fc8a..f46399b0c5a963 100644
--- a/webextensions/manifest/options_ui.json
+++ b/webextensions/manifest/options_ui.json
@@ -33,7 +33,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "55",
-                "notes": "Removed from Manifest V3 in Firefox 118. See <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/user_interface/Browser_styles'>Browser styles</a> for more details."
+                "notes": "Removed from Manifest V3 in Firefox 118. See [Browser styles](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/user_interface/Browser_styles) for more details."
               },
               "firefox_android": {
                 "version_added": false
diff --git a/webextensions/manifest/page_action.json b/webextensions/manifest/page_action.json
index 22640c14acf95e..c3ce6144f4d58c 100644
--- a/webextensions/manifest/page_action.json
+++ b/webextensions/manifest/page_action.json
@@ -21,15 +21,9 @@
               "version_added": "48"
             },
             "firefox_android": {
-              "version_added": true
-            },
-            "opera": {
-              "version_added": true,
-              "notes": [
-                "If an extension defines a page action, it is not allowed to define a browser action as well.",
-                "Available for use in Manifest V2 only."
-              ]
+              "version_added": "≤57"
             },
+            "opera": "mirror",
             "safari": {
               "version_added": "14",
               "notes": [
@@ -55,7 +49,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "48",
-                "notes": "Removed from Manifest V3 in Firefox 118. See <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/user_interface/Browser_styles'>Browser styles</a> for more details."
+                "notes": "Removed from Manifest V3 in Firefox 118. See [Browser styles](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/user_interface/Browser_styles) for more details."
               },
               "firefox_android": {
                 "version_added": false
@@ -72,7 +66,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true,
+                "version_added": "≤72",
                 "notes": "SVG icons are not supported."
               },
               "edge": {
@@ -87,7 +81,7 @@
                 "version_added": "48"
               },
               "firefox_android": {
-                "version_added": true
+                "version_added": "≤57"
               },
               "opera": "mirror",
               "safari": [
@@ -125,7 +119,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -134,7 +128,7 @@
                 "version_added": "48"
               },
               "firefox_android": {
-                "version_added": true
+                "version_added": "≤57"
               },
               "opera": "mirror",
               "safari": {
@@ -150,7 +144,7 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": true
+                "version_added": "≤72"
               },
               "edge": {
                 "version_added": "14"
@@ -159,7 +153,7 @@
                 "version_added": "48"
               },
               "firefox_android": {
-                "version_added": true
+                "version_added": "≤57"
               },
               "opera": "mirror",
               "safari": {
diff --git a/webextensions/manifest/permissions.json b/webextensions/manifest/permissions.json
index 1e0de3da3f9acc..8e412172f19ffb 100644
--- a/webextensions/manifest/permissions.json
+++ b/webextensions/manifest/permissions.json
@@ -247,7 +247,7 @@
               },
               "firefox": {
                 "version_added": "55",
-                "notes": "Available as an alias to the <code>menus</code> permission."
+                "notes": "Available as an alias to the `menus` permission."
               },
               "firefox_android": {
                 "version_added": false
@@ -255,7 +255,7 @@
               "opera": "mirror",
               "safari": {
                 "version_added": "14",
-                "notes": "Available as an alias to the <code>menus</code> permission."
+                "notes": "Available as an alias to the `menus` permission."
               },
               "safari_ios": {
                 "version_added": false
@@ -408,7 +408,7 @@
             "support": {
               "chrome": {
                 "version_added": "preview",
-                "notes": "The <code>dns</code> API is only available in Chrome Dev."
+                "notes": "The `dns` API is only available in Chrome Dev."
               },
               "edge": "mirror",
               "firefox": {
@@ -444,7 +444,7 @@
         },
         "downloads_open": {
           "__compat": {
-            "description": "<code>downloads.open</code>",
+            "description": "`downloads.open`",
             "support": {
               "chrome": {
                 "version_added": "≤64"
@@ -1020,8 +1020,8 @@
           "__compat": {
             "support": {
               "chrome": {
-                "version_added": "≤64",
-                "notes": "In Manifest V3, no longer available for most extensions (the exception being policy-installed extensions). Use the <code>declarativeNetRequest</code> API instead."
+                "version_added": "17",
+                "notes": "In Manifest V3, no longer available for most extensions (the exception being policy-installed extensions). Use the `declarativeNetRequest` API instead."
               },
               "edge": {
                 "version_added": "14"
@@ -1059,7 +1059,7 @@
         },
         "webRequestFilterResponse_serviceWorkerScript": {
           "__compat": {
-            "description": "<code>webRequestFilterResponse.serviceWorkerScript</code>",
+            "description": "`webRequestFilterResponse.serviceWorkerScript`",
             "support": {
               "chrome": {
                 "version_added": false
diff --git a/webextensions/manifest/sidebar_action.json b/webextensions/manifest/sidebar_action.json
index 7b78032b863938..92f8928a1a989c 100644
--- a/webextensions/manifest/sidebar_action.json
+++ b/webextensions/manifest/sidebar_action.json
@@ -33,7 +33,7 @@
               "edge": "mirror",
               "firefox": {
                 "version_added": "55",
-                "notes": "Removed from Manifest V3 in Firefox 118. See <a href='https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/user_interface/Browser_styles'>Browser styles</a> for more details."
+                "notes": "Removed from Manifest V3 in Firefox 118. See [Browser styles](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/user_interface/Browser_styles) for more details."
               },
               "firefox_android": {
                 "version_added": false
diff --git a/webextensions/manifest/storage.json b/webextensions/manifest/storage.json
index f7334656e7a54f..2b3eea2ec9ff12 100644
--- a/webextensions/manifest/storage.json
+++ b/webextensions/manifest/storage.json
@@ -36,7 +36,8 @@
                 "version_added": "79"
               },
               "firefox": {
-                "version_added": false
+                "version_added": false,
+                "impl_url": "https://bugzil.la/1771731"
               },
               "firefox_android": "mirror",
               "opera": {
diff --git a/webextensions/manifest/theme.json b/webextensions/manifest/theme.json
index 4ed13592d9f005..1b0812667b6a17 100644
--- a/webextensions/manifest/theme.json
+++ b/webextensions/manifest/theme.json
@@ -13,7 +13,7 @@
               "version_added": "55"
             },
             "firefox_android": {
-              "version_added": true
+              "version_added": false
             },
             "opera": {
               "version_added": false
@@ -36,7 +36,7 @@
                 "version_added": "55"
               },
               "firefox_android": {
-                "version_added": "65"
+                "version_added": false
               },
               "opera": {
                 "version_added": false
@@ -127,7 +127,7 @@
                   "notes": "Before version 59, the CSS color form was not supported for this property."
                 },
                 "firefox_android": {
-                  "version_added": true
+                  "version_added": false
                 },
                 "opera": {
                   "version_added": false
@@ -425,6 +425,28 @@
               }
             }
           },
+          "tab_background_separator": {
+            "__compat": {
+              "support": {
+                "chrome": {
+                  "version_added": false
+                },
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "62",
+                  "notes": "Deprecated in Firefox 89. For details, see the [Changes to themeable areas of Firefox in version 89](https://blog.mozilla.org/addons/2021/04/19/changes-to-themeable-areas-of-firefox-in-version-89/) blog post ."
+                },
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
           "tab_background_text": {
             "__compat": {
               "support": {
@@ -718,6 +740,36 @@
               }
             }
           },
+          "toolbar_field_separator": {
+            "__compat": {
+              "support": {
+                "chrome": {
+                  "version_added": false
+                },
+                "edge": "mirror",
+                "firefox": [
+                  {
+                    "version_added": "59",
+                    "notes": "Deprecated in Firefox 89. For details, see the [Changes to themeable areas of Firefox in version 89](https://blog.mozilla.org/addons/2021/04/19/changes-to-themeable-areas-of-firefox-in-version-89/) blog post ."
+                  },
+                  {
+                    "alternative_name": "toolbar_vertical_separator",
+                    "version_added": "58",
+                    "version_removed": "59",
+                    "notes": "Before version 59, the RGB array form was not supported for this property."
+                  }
+                ],
+                "firefox_android": {
+                  "version_added": false
+                },
+                "opera": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror"
+              }
+            }
+          },
           "toolbar_field_text": {
             "__compat": {
               "support": {
@@ -820,7 +872,7 @@
                 "edge": "mirror",
                 "firefox": {
                   "version_added": "58",
-                  "notes": "Before version 59, this had the same meaning as <code>toolbar_field_separator</code>."
+                  "notes": "Before version 59, this had the same meaning as `toolbar_field_separator`."
                 },
                 "firefox_android": {
                   "version_added": false
@@ -846,7 +898,9 @@
                 "version_added": "55",
                 "notes": "Before Firefox 60, this property was required."
               },
-              "firefox_android": "mirror",
+              "firefox_android": {
+                "version_added": false
+              },
               "opera": {
                 "version_added": false
               },
@@ -888,8 +942,7 @@
                   "version_added": "55"
                 },
                 "firefox_android": {
-                  "version_added": "55",
-                  "notes": "This property is required."
+                  "version_added": false
                 },
                 "opera": {
                   "version_added": false
diff --git a/webextensions/match_patterns.json b/webextensions/match_patterns.json
index fba05c09d857e7..b430961586b0d1 100644
--- a/webextensions/match_patterns.json
+++ b/webextensions/match_patterns.json
@@ -26,7 +26,7 @@
       "scheme": {
         "wildcard": {
           "__compat": {
-            "description": "Wildcard <code>*</code> scheme",
+            "description": "Wildcard `*` scheme",
             "support": {
               "chrome": {
                 "version_added": "≤65"
@@ -50,7 +50,7 @@
         },
         "wildcard_websocket": {
           "__compat": {
-            "description": "<code>*</code> matches <code>ws</code> and <code>wss</code>",
+            "description": "`*` matches `ws` and `wss`",
             "support": {
               "chrome": {
                 "version_added": false